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ORDER NO. KM40506787CE
Telephone Equipment
KX-TG2820LAB KX-TG2822LAB KX-TGA243LAB KX-TGA246LAB
2.4 GHz Digital Cordless Phone
Black Version (for Latin America)
© 2005 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
Note:
Because CONTENTS 4 is the extract from the Operating Instructions of this model, it is subject to change without notice. You can download and refer to the original Operating Instructions on TSN Server for further information.
CONTENTS
Page
1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 1.1. Suggested PbF Solder 1.2. How to Recognize that Pb Free Solder is Used 2 FOR SERVICE TECHNICIANS 3 CAUTION 4 OPERATING INSTRUCTIONS 4.1. Battery 4.2. Location of Controls 4.3. Displays 4.4. Settings 4.5. Troubleshooting 5 DISASSEMBLY INSTRUCTIONS 5.1. Base Unit 5.2. Handset 5.3. Charger Unit 6 HOW TO REPLACE THE HANDSET LCD 7 TROUBLESHOOTING GUIDE 7.1. Check Power 7.2. Check Battery Charge 7.3. Check Link 7.4. Check the RF part 7.5. Check Handset Transmission 7.6. Check Handset Reception 7.7. Check Caller ID 8 ADJUSTMENT AND TEST MODE 8.1. Test Mode Flow Chart for Base Unit 8.2. Test Mode Flow Chart for Handset 8.3. X501 (Base Unit), X201 (Handset) Check 8.4. Adjust Battery Low Detector Voltage (Handset) 8.5. Base Unit Reference Drawing 8.6. Handset Reference Drawing 8.7. Frequency Table 8.8. How to Clear User Setting (Handset Only) 9 DESCRIPTION 9.1. Frequency 9.2. FHSS (Frequency Hopping Spread Spectrum) 4 4 5 5 5 6 6 8 10 11 15 18 18 19 20 21 22 23 24 25 26 33 33 33 34 34 38 42 42 43 44 45 46 47 47 47 9.3. Signal Flowchart in the Whole System 10 EXPLANATION OF LINK DATA COMMUNICATION 10.1. Calling 10.2. To Terminate Communication 10.3. Ringing 11 BLOCK DIAGRAM (BASE UNIT_MAIN) 12 BLOCK DIAGRAM (BASE UNIT_RF PART) 13 CIRCUIT OPERATION (BASE UNIT_MAIN) 13.1. DSP (Digital Speech/Signal Processing: IC501) 13.2. EEPROM (IC611) 13.3. Power Supply Circuit 13.4. Reset Circuit 13.5. Telephone Line Interface 13.6. Parallel Connection Detect Circuit 13.7. Calling Line Identification (Caller ID) 13.8. 2.4GHz Mod/Demod Circuit (Base Unit RF Part) 14 BLOCK DIAGRAM (HANDSET_MAIN) 15 BLOCK DIAGRAM (HANDSET_RF PART) 16 CIRCUIT OPERATION (HANDSET) 16.1. Construction 16.2. Power Supply Circuit 16.3. Charge Circuit 16.4. Ringer and Handset SP-Phone 16.5. Sending Signal 16.6. Reception Signal 16.7. 2.4GHz Mod/Demod Circuit (Handset RF Part) 17 CIRCUIT OPERATION (CHARGER UNIT) 18 SIGNAL ROUTE 19 CPU DATA (BASE UNIT) 19.1. IC501 20 CPU DATA (HANDSET) 20.1. IC201 21 EXPLANATION OF IC TERMINALS (RF PART) 21.1. IC901 22 HOW TO REPLACE A FLAT PACKAGE IC 22.1. PREPARATION
Page
49 50 50 50 50 51 52 53 53 53 54 56 57 58 59 60 61 62 63 63 64 65 65 66 66 67 68 69 70 70 71 71 72 72 73 73
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
22.2. FLAT PACKAGE IC REMOVAL PROCEDURE 22.3. FLAT PACKAGE IC INSTALLATION PROCEDURE 22.4. BRIDGE MODIFICATION PROCEDURE 23 CABINET AND ELECTRICAL PARTS (BASE UNIT) 23.1. KX-TG2820LAB 23.2. KX-TG2822LAB 24 CABINET AND ELECTRICAL PARTS (HANDSET) 25 CABINET AND ELECTRICAL PARTS (CHARGER UNIT) 26 ACCESSORIES AND PACKING MATERIALS 26.1. KX-TG2820LAB 26.2. KX-TG2822LAB
73 74 74 75 75 76 77 78 79 79 80
29 FOR SCHEMATIC DIAGRAM
89
29.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT_MAIN)) 89 29.2. Handset (SCHEMATIC DIAGRAM (HANDSET_MAIN)) 89 29.3. Charger Unit (SCHEMATIC DIAGRAM (CHARGER UNIT)) 89 30 SCHEMATIC DIAGRAM (BASE UNIT_MAIN) 31 SCHEMATIC DIAGRAM (BASE UNIT_RF PART) 32 SCHEMATIC DIAGRAM (HANDSET_MAIN) 33 SCHEMATIC DIAGRAM (HANDSET_RF PART) 34 SCHEMATIC DIAGRAM (CHARGER UNIT) 35 CIRCUIT BOARD (BASE UNIT_MAIN) 35.1. Component View 35.2. Flow Solder Side View 36 CIRCUIT BOARD (BASE UNIT_RF PART) 37 CIRCUIT BOARD (HANDSET_MAIN) 37.1. Component View 37.2. Flow Solder Side View 38 CIRCUIT BOARD (HANDSET_RF PART) 39 CIRCUIT BOARD (CHARGER UNIT) 39.1. Component View 39.2. Flow Solder Side View 90 92 94 96 97 99 99 100 101 103 103 104 105 106 106 106
27 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 81 27.1. Base Unit 27.2. Handset 27.3. Charger Unit 28 REPLACEMENT PARTS LIST 28.1. Base Unit 28.2. Handset 28.3. Charger Unit 28.4. Accessories and Packing Materials 28.5. Fixtures and Tools 81 81 82 83 83 85 87 87 87
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
1 ABOUT LEAD FREE SOLDER (PbF: Pb free)
Note: In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that contains lead. We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn), Silver (Ag), and Copper (Cu). This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair work we suggest using the same type of solder although, with some precautions, standard Pb solder can also be used. Caution · PbF solder has a melting point that is 50°F ~ 70° F (30°C ~ 40°C) higher than Pb solder. Please use a soldering iron with temperature control and adjust it to 700°F ± 20° F (370°C ± 10°C). In case of using high temperature soldering iron, please be careful not to heat too long. · PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100°F (600°C). · If you must use Pb solder on a PCB manufactured using PbF solder, remove as much of the original PbF solder as possible and be sure that any remaining is melted prior to applying the Pb solder. · When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the opposite side (See the figure below).
1.1.
Suggested PbF Solder
There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper (Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu), or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other materials. The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
1.2.
How to Recognize that Pb Free Solder is Used
Marked
(Example: Handset P.C.B.)
VBATT CHG2 R352 1
L352
TX RX
IC241
5 R242 C242 R354 C354
D313 D312
VSS VSS C241 R209 R241
JTAG C206 C209 RA201 R207 R206 TEST R205 76 75
Q251 RA251Q252 Q253 R258 R257 R256 R251 R252 51 50 C205
R261 L211
C371 1 L326 L327 D326 D327
C361 C384
IC381
PbF
C382 C383 1
ANT
PQUP11285Z
IC371
C211 C381
C372
C313 C311 C312
C353
R376
R377
L351
R351
C316 R317 C314 R314 C317 R312 R234 26 100 R318 C208 R367 C246 R249 1 25 R334 R366 TXO MOE C336 R340 C201 C215 C212 C305 C333 5 R225 D361 R333 C307 C202 R228 C231C306 C219 C340 C214 R208 R364 R230 C225 RESET D231 R222 C222 R362 R224 IC221 R232 C224 R231 X201 C221 R363 R361 1 D223 R223 CHG1 C223 R368
R226 C244 C226 R243 C243 C303 C377 C304 C315 R315
IC201
C204 R204 R203 RSSI
IC374
C227 R227 CA274 FL901
Q243
IC373
C373
SP_PHONE
L373
R331 R332 C332 L332 C273 D373 Q331 R273 Q373 C335 L334 C321 C334 R324 R325 C322 R323 D324 D323 L331 R272 CA271 C272
SHIELD
IC901
IC249
Q362
Q363
RECEIVER
Q361
CN331
Q231
Q221
A
R201
(Component View)
Note: The location of the "PbF" mark is subject to change without notice.
2 FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help prevent recurring malfunctions. 1. Cover plastic parts boxes with aluminum foil. 2. Ground the soldering irons. 3. Use a conductive mat on worktable. 4. Do not grasp IC or LSI pins with bare fingers.
3 CAUTION
1. Danger of explosion if battery is incorrectly replaced. 2. Replace only with the same or equivalent type recommended by the manufacturer. 3. Dispose of used batteries according to the manufacturer´s Instructions.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4 OPERATING INSTRUCTIONS
4.1.
4.1.1.
Battery
Battery Installation
4.1.2.
Battery Charge
4.1.3.
Recharging the Battery
Note for service: The battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully charged. In that case, by recharging the battery as mentioned above, you will get a correct indication of the battery strength.
4.1.4.
Battery Strength
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.1.5.
Battery Replacement
4.1.6.
Battery Performance
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.2.
4.2.1.
Location of Controls
Base Unit
4.2.2.
Handset
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.2.3.
Charger Unit (KX-TG2822LA only)
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.3.
4.3.1.
Displays
Display Items
4.3.2.
Troubleshooting (Handset LCD)
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.4.
4.4.1.
Settings
Connections
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.4.2.
Guide to Handset Programming
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.4.3.
Direct Commands
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
4.5.
Troubleshooting
If the handset display shows error messages, see "Troubleshooting (Handset LCD) (P.10)" for the Cause & Solution.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
5 DISASSEMBLY INSTRUCTIONS
5.1. Base Unit
Shown in Fig.1
To Remove Cabinet Cover Main P. C. Board
Remove Screws (2.6 × 12).....(A) × 4 Screws (2.6 × 8).......(B) × 2 Tapes and Solders Main P. C. Board
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
5.2.
Handset
Shown in Fig.2 3 4
To Remove Cabinet Cover Main P. C. Board
Remove Screws (2 × 10).............( C) × 2 Follow the procedure. Tape and Solders Screws (2 × 10).............( D) × 3 Charge Terminals Main P. C. Board
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
5.3.
Charger Unit
Shown in Fig.5
To Remove Cabinet Cover Main P. C. Board
Remove Screws (2.6 × 12).............( E) × 2 Solders Main P. C. Board
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
6 HOW TO REPLACE THE HANDSET LCD
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7 TROUBLESHOOTING GUIDE
Cross Reference: Check Power (P.23) Check Battery Charge (P.24) Check Link (P.25) Check the RF part (P.26) Check Handset Transmission (P.33) Check Handset Reception (P.33) Check Caller ID (P.33)
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.1.
Check Power
Cross Reference: Power Supply Circuit (P.54) Reset Circuit (P.56)
Note: DSP is IC501.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.2.
Check Battery Charge
Note: DSP is IC501.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.3.
Check Link
Note: DSP is IC501. (*1) Refer to Finding out the Defective part (P.26). Cross Reference: Check the RF part (P.26)
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.4.
7.4.1.
Check the RF part
Finding out the Defective part
After All the Checkings or Repairing 1. Re-register the checked Handset to the checked Base Unit, and Regular HS to Regular BU.
Note: (*1) HS: Handset (*2) BU: Base Unit
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.4.1.1.
Re-registering the Handset
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.4.2.
RF Check Flowchart
Each item (1 ~ 6) of RF Check Flowchart corresponds to Check Table for RF part (P.29). Please refer to the each item.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.4.3.
Check Table for RF part
BU (Base Unit) Check 1. Register Regular HS to BU (to be checked). 2. Press [Talk] key of the Regular HS to establish link. Check DSP interface. (*2) HS (HandSet) Check 1. Register HS (to be checked) to Regular BU. 2. Press [Talk] key of the HS to establish link. Check DSP interface. (*2)
No. Item 1 Link Confirmation Normal HS, BU Mode [Normal Mode] 2 Control signal confirmation
3
4
5
6
HS, BU Mode: [Test Burst Mode] (*1) X'tal Frequency confirmation (*7) Check X'tal Frequency. Check X'tal Frequency. (13.824000MHz ±100Hz) (13.824000MHz ±100Hz) HS, BU Mode: [Adjustment] (*3) TX Power confirmation 1. Place the Regular HS about 15cm away 1. Place the HS about 15cm away from the from the BU. Regular BU. Regular HS, BU Mode: 2. Confirm that RSSI of the Regular HS is 2. Confirm that RSSI of the Regular BU is [RX-CW Mode.] (*4) approximately 2V by Oscilloscope. (*5) approximately 2V by Oscilloscope. (*6) HS, BU (to be checked) Mode: [Test Burst Mode.] (*1) RX Sensitivity confirmation 1. Place the Regular HS about 15cm away 1. Place the HS about 15cm away from the from the BU. Regular BU. Regular HS, BU Mode: 2. Confirm that RSSI of the BU is 2. Confirm that RSSI of the HS is [Test Burst Mode.] (*1) approximately 2V by Oscilloscope. (*5) approximately 2V by Oscilloscope. (*6) HS, BU (to be checked) Mode: [RX-CW Mode.] (*4) Range Confirmation Normal 1. Register Regular HS to BU (to be checked). 1. Register HS (to be checked) to Regular BU. HS, BU Mode: [Normal Mode] 2. Press [Talk] key of the Regular HS to establish link. 3. Compare the range of the BU (being checked) with that of the Regular BU. 2. Press [Talk] key of the HS to establish link. 3. Compare the range of the HS (being checked) with that of the Regular HS.
Note: (*1)(*3)(*4) ADJUSTMENT AND TEST MODE (P.34) (*2) RF-DSP Interface Signal Wave Form (P.31) (*5) Base Unit Reference Drawing (P.43) (*6) Handset Reference Drawing (P.44) (*7) X501 (Base Unit), X201 (Handset) Check (P.42)
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.4.4.
TEST RANGE Check
BU (Base Unit) Check 1. Register Regular HS to BU (to be checked). 2. Set BU to "Test Link mode". 3. Set Regular HS to "Test Link mode". HS (HandSet) Check 1. Register HS (to be checked) to Regular BU. 2. Set Regular BU to "Test Link mode". 3. Set HS to "Test Link mode". *Set TX Power and RX Sensitivity of the HS and the Regular BU by CHART1. * At distance of about 20m between HS and BU, Link OK = TX Power of the HS is OK. No Link = TX Power of the HS is NG. 1. Register HS (to be checked) to Regular BU. 2. Set Regular BU to "Test Link mode". 3. Set HS to "Test Link mode". * Set TX Power and RX Sensitivity of Checking_HS and Regular_BU by CHART1. * At distance of about 20m between HS and BU, Link OK= RX Sensitivity of the HS is OK. No Link = RX Sensitivity of the HS is NG
Circuit block which range is defective can be found by the following check.
Item Range Confirmation TX TEST (TX Power check) HS, BU Mode: [Test Link Mode] (*1)
*Set TX Power and RX Sensitivity of the BU and the Regular HS by CHART1. * At distance of about 20m between HS and BU, Link OK = TX Power of the BU is OK. No Link = TX Power of the BU is NG. 1. Register Regular HS to BU (to be checked). 2. Set BU to "Test Link mode". 3. Set Regular HS to "Test Link mode".
Range Confirmation RX TEST (RX sensitivity check) HS, BU Mode: [Test Link Mode] (*1)
*Set TX Power and RX Sensitivity of the BU and Regular HS by CHART1. * At distance of about 20m between HS and BU, Link OK= RX Sensitivity of the BU is OK. No Link = RX Sensitivity of the BU is NG.
CHART1: Setting of TX Power and RX Sensitivity in Range Confirmation TX TEST, RX TEST
BU (to be checked) TX Power RX Sens. High High High High HS (to be checked) TX Power RX Sens. High High High High Regular_HS TX Power High Low Regular_BU TX Power High Low RX Sens. Low High RX Sens. Low High
BU (Base Unit) TX Power Check BU (Base Unit) RX Sensitivity Check
HS (Handset) TX Power Check HS (Handset) RX Sensitivity Check
Note: (*1) ADJUSTMENT AND TEST MODE (P.34)
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.4.5.
RF-DSP Interface Signal Wave Form
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
7.5.
Check Handset Transmission
Cross Reference: SIGNAL ROUTE (P.69).
7.6.
Check Handset Reception
Cross Reference: SIGNAL ROUTE (P.69). Note: When checking the RF part, Refer to Check the RF part (P.26)
7.7.
Check Caller ID
Cross Reference: Telephone Line Interface (P.57). Calling Line Identification (Caller ID) (P.59). Note: · Make sure the format of the Caller ID service of the Telephone company that the customer subscribed to. · Also we recommend to confirm that the customer is really a subscriber of the service.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8 ADJUSTMENT AND TEST MODE
8.1.
8.1.1.
Test Mode Flow Chart for Base Unit
Test Burst Mode
Note: (*1) When you check test mode, connect to the external Buttons because Base Unit has only LOCATOR key. Refer to "For Test Mode" in Base Unit Reference Drawing (P.43). -Insert AC adaptor during checking. (*2) Refer to Check Table for RF part (P.29) and RX-CW Test Mode (P.39) for proper Handset Settings. (*3) Press LOCATOR1 for KX-TG2822LA.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.1.2.
RX-CW TEST Mode
Note: (*1) When you check test mode, connect to the external Buttons because Base Unit has only LOCATOR key. Refer to "For Test Mode" in Base Unit Reference Drawing (P.43). -Insert AC adaptor during checking. (*2) Refer to Check Table for RF part (P.29) and Test Burst Mode (P.38) for proper Handset Settings. (*3) Press LOCATOR1 for KX-TG2822LA.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.1.3.
Test Link Mode
Note: (*1) When you check test mode, connect to the external Buttons because Base Unit has only LOCATOR key. Refer to "For Test Mode" in Base Unit Reference Drawing (P.43). -Insert AC adaptor during checking. (*2) for factory use only (*3) Refer to Check Table for RF part (P.29) and Test Link Mode (P.40) for proper Handset Settings. (*4) Press LOCATOR1 for KX-TG2822LA.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.1.4.
Adjustment Mode
Cross Reference Check and Adjust X501 (Base Unit) Frequency (P.42) Note: (*1) When you check test mode, connect to the external Buttons because Base Unit has only LOCATOR key. Refer to "For Test Mode" in Base Unit Reference Drawing (P.43). -Insert AC adaptor during checking. (*2) Refer to the table below, if using Spectrum Analyzer for checking.
BCK 13.824 MHz ±30 Hz ±100 Hz TEST MODE Frequency (1 Channel) 2401.618359 MHz ±5.20 kHz ±17.36 kHz
(*3) Press LOCATOR1 for KX-TG2822LA.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.2.
8.2.1.
Test Mode Flow Chart for Handset
Test Burst Mode
Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.) (*2) Refer to Check Table for RF part (P.29) and RX-CW TEST Mode (P.35) for proper Base Unit Settings.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.2.2.
RX-CW Test Mode
Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.) (*2) Refer to Check Table for RF part (P.29) and Test Burst Mode (P.34) for proper Base Unit Settings.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.2.3.
Test Link Mode
Note: (*1) LCD displays the Channel number. (exception: default/ CH00 = 1ch.) (*2) for factory use only. (*3) Refer to Check Table for RF part (P.29) and Test Link Mode (P.36) for proper Base Unit Settings.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.2.4.
Adjustment Mode
Cross Reference (*1) Adjust Battery Low Detector Voltage (Handset) (P.42) Note: (*2) These are the default values. (*3) These values may not be fixed depending on the battery strength. (*4) Refer to the table below, if using Spectrum Analyzer for checking.
BCK 13.824 MHz ±30 Hz ±100 Hz TEST MODE Frequency (1 Channel) 2401.618359 MHz ±5.20 kHz ±17.36 kHz
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.3.
X501 (Base Unit), X201 (Handset) Check
Equipment: Frequency counter Check Point for measurement: BCK Checking tolerance: 13.824MHz ± 100Hz (Base Unit/Handset)
8.3.1.
Check and Adjust X501 (Base Unit) Frequency
1. Set up Base Unit in TEST mode. 2. Press following keys in order to Adjust Crystal mode. [LOCATOR] (*1), [LOCATOR] (*1), [LOCATOR] (*1), [Button 1] (*2), [Button 2] (*2), [Button 2] (*2), [Button 1] (*2). Check BCK frequency. 3. If the BCK frequency is out of the checking tolerance (± 100Hz), adjust to Adjustment tolerance (± 30Hz) by pressing [Button 1] (*2) or [Button 2] (*2) key. Adjustment Tolerance: 13.824MHz ± 30Hz 4. Press [LOCATOR] (*1) key to write the new frequency factor in Memory. 5. Turn the power off. Then this value is available.
Note: (*1) Press LOCATOR1 for KX-TG2822LA. (*2) When you check test mode, connect to the external Buttons because Base Unit has only LOCATOR key. Refer to "For Test Mode" in Base Unit Reference Drawing (P.43). -Insert AC adaptor during checking. Cross Reference: Adjustment Mode (P.37)
8.3.2.
Check and Adjust X201 (Handset) Frequency
1. Set DC power supply to 2.6V. 2. Set up Handset in TEST mode (Adjustment flow). 3. Press [1] key to Adjust Crystal mode. ("Clock Adj." is displayed on LCD). Check BCK frequency. 4. If the BCK frequency is out of the checking tolerance (± 100Hz), adjust to Adjustment tolerance (± 30Hz) by pressing [ ] or [ ] key. Adjustment Tolerance: 13.824MHz ± 30Hz 5. Press [TALK] key to write the new frequency factor in EEPROM. 6. Turn the power off. Then this value is available.
Cross Reference: Adjustment Mode (P.41)
8.4.
Adjust Battery Low Detector Voltage (Handset)
After Handset´s DSP (IC201) or EEPROM (IC241) replacement, Re-writing Battery Low voltage to EEPROM is required. With following Handset Adjustment Flow, adjust DC power supply and DC voltmeter by the procedure below. 1. Set DC power supply to 2.6V. 2. Set up Handset in TEST mode (Adjustment flow). 3. Press [1] key and [OFF] key to Adjust Batt Low mode. ("Bat Adj." is displayed on LCD) 4. Change the voltage of the DC power supply to 2.33V accurately. Check the voltage at P.C. board pads because some voltage drops occur due to the usage of long or thin cables. 5. Press [TALK] key to write voltage value in EEPROM. 6. Turn the power off. Then this value is available. Note: Refer to Handset Reference Drawing (P.44) for connection of DC power supply and voltmeter. Cross Reference: Adjustment Mode (P.41)
42
8.5.
Oscilloscope DC_VOLT_METER DCP RSSI (RS) 8 SP DCM DC DC 9V AC VOLT METER Oscilloscope
Base Unit Reference Drawing
When connecting the Simulator Equipments for checking, please refer to below.
R340 D362 D371 D471 D472 D361 Q362 Q361
R341
Q340
IC331
R342 R343 C361 R365 LED679 L361 R168 R160 L402 L401 L371 LED677 R364 C160 Q372 R375 R162 C162 J601 C662 C371 R374 R161
R361
CHG
D301 C305
S661
SP
C303
C301
Q161
R371 R372 R373 C163 R166 R151 R145 R157 C142 Q373 C453 R453 R184 R185 C185 C661 J600 R165
Q371
C161
C306
PQUP11286Z
MIC L300
Q156 Q142
R156 D142 SA104 C101
MIP
C373 C456 C458 R460 R142 R164 C165 R143 R141 C184 C183 R183 C141 C455 C454 C457 R459 C459
CN101
AF OSC
S662
R163
C166 R454 14 C342
MIC
C341
Q141
C343 IC332
MIM
IC601 Q143
R132 R131 R136 C132 D131 Q131 R137 D113 C111 Q111 R121 R111 C121 C113 C112 R112 C122 R113 C122 R133 C102
15
D101 L102
SA101
L101
SA102 SA103
28 L501 C679
43
R421 R206 R422 C422
PbF
RA501 R517 R509 C521 R521 C518 R522 Q521 C517 C508 C509 C514 C513 C174 Q171 C172 C167 C173 R175 C551 C347 C524 C522 R167 R172 R176 50
1 RDY R601 R602 C421 C601 R675 C677 R423 C603 R677 C423 R679 C501 C675
X501
R524 C525 R525 R523
IC301
P101 SHIELD
C379 C381 C380
C664 C666 C668 C670 C672 RA500 C516 C515 C181 C171 C177 C182 R171 C175 C179 R178 C178 STB1 STB3 STB2 STB4 KIN2 KIN3 KIN1 C120 R134 D133 C512 R669 C660 R594 C365 C377 R686 R611 R687 R473 R474 R593 R668 R612 C611 C505 C352 C504 C612 C685 C471 C472 INT0 R533
C663 81 C665 C667 C669 C671
IC501
C176
31 1
IC201
L901
C202 R203 R204 R205 R671 R670
IO1 Q201 R202 R201 Q202
IC901
C201
INT1
C503 C680 R680 R591 R592 R114
ANT
CN661
W_GND
IC611
A
GND KIN3 KIN2 KIN1 STB_A
TEST_SW
INT_1
IC501 pin100
BMC-CLK (BCK)
Button3 Button2 Button1
Oscilloscope
For Test Mode
Frequency Counter (*1)
Note:
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
(*1) is referred to No.3 of Check Table for RF part (P.29)
8.6.
Handset Reference Drawing
When connecting the Simulator Equipments for checking, please refer to below.
MONITOR_SP AC VOLT METER Oscilloscope Oscilloscope SP_PHONE 8 CI (pin79)
DC_VOLT_METER VSS1
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
DC_POWER_SUPPLY 2.6V 2.33V
VBATT2
VBATT1 2.3~2.90V (Battery)
VSS2
VBATT CHG2 1 RX R257 R256 R251 R252 51 C205 L327 D326 D327 C372 1 50 L326 1 C384 TX L211 Q251 RA251Q252 Q253 R258 R261 C371 C361
R352
JTAG C206 C209 RA201 R207 R206 TEST
IC381
C382 C383
PbF
IC374
C227 R227 CA274
ANT
PQUP11285Z
L352
IC241
5 C244 R226 C226 R205 76 75
IC371
C211 C381
VSS VSS C241 R209 R241
R242 C242
Q243
R243 C243 C303 C377 C304 C315 R315
C313
D313
R354 C354
IC201
C373 L373
C204 R204 R203 RSSI
FL901
IC373
44
D312
47
R331 R332 C332 D373 Q331 Q373 L332
C311
MICP
C273 R273 R272 CA271 C272
SP_PHONE
SHIELD
OSC 1.1KHz
IC901
47 MICM IC249
Q361
MIC Load
RECEIVER
C353
Q362
Q363
R376
R377
L351
CN331
R351 R201
C316 R317 C314 R314 C312 C317 R368 R312 R234 26 100 R318 C208 R367 C246 R249 1 25 R334 R366 TXO MOE C336 R340 C201 C215 C212 C305 C333 5 R225 D361 R333 C307 C202 R228 C231C306 C219 C340 C214 R208 R364 R230 C225 RESET R222 C222 D231 R362 R224 IC221 R232 C224 R231 X201 C221 R363 R361 1 D223 R223 CHG1 C223
C335 L334 C321 C334 R324 R325 C322 R323 D324 D323 L331
Note: (*1) is referred to No.3 of Check Table for RF part (P.29)
Q231
BCK HS_SP RSSI (pin 4) Frequency Counter (*1) Oscilloscope 150 Oscilloscope AF VOLT METER MAIN_SP
Q221
A
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.7.
Channel 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Frequency Table
TX/RX Frequency (MHz) 2401.808203 2402.698096 2403.591943 2404.481836 2405.375684 2406.265576 2407.159424 2408.049316 2408.943164 2409.833057 2410.726904 2411.616797 2412.510645 2413.400537 2414.294385 2415.184277 2416.078125 2416.968018 2417.861865 2418.751758 2419.645605 2420.535498 2421.429346 2422.319238 2423.213086 2424.102979 2424.996826 2425.886719 2426.780566 2427.670459 2428.564307 2429.454199 2430.348047 2431.237939 2432.131787 2433.021680 2433.915527 2434.805420 2435.699268 2436.589160 2437.483008 2438.372900 2439.266748 2440.156641 2441.050488 2441.940381 2442.834229 2443.724121 2444.617969 2445.507861 2446.401709 2447.291602 2448.185449 2449.075342 2449.969189 2450.859082 2451.752930 2452.642822 2453.536670 2454.426563 2455.320410 2456.210303 2457.104150 2457.994043 TEST MODE Frequency (MHz) 2401.618359 2402.508252 2403.402100 2404.291992 2405.185840 2406.075732 2406.969580 2407.859473 2408.753320 2409.643213 2410.537061 2411.426953 2412.320801 2413.210693 2414.104541 2414.994434 2415.888281 2416.778174 2417.672021 2418.561914 2419.455762 2420.345654 2421.239502 2422.129395 2423.023242 2423.913135 2424.806982 2425.696875 2426.590723 2427.480615 2428.374463 2429.264355 2430.158203 2431.048096 2431.941943 2432.831836 2433.725684 2434.615576 2435.509424 2436.399316 2437.293164 2438.183057 2439.076904 2439.966797 2440.860645 2441.750537 2442.644385 2443.534277 2444.428125 2445.318018 2446.211865 2447.101758 2447.995605 2448.885498 2449.779346 2450.669238 2451.563086 2452.452979 2453.346826 2454.236719 2455.130566 2456.020459 2456.914307 2457.804199 Channel 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 TX/RX Frequency (MHz) 2458.887891 2459.777783 2460.671631 2461.561523 2462.455371 2463.345264 2464.239111 2465.129004 2466.022852 2466.912744 2467.806592 2468.696484 2469.590332 2470.480225 2471.374072 2472.263965 2473.157813 2474.047705 2474.941553 2475.831445 2476.725293 2477.615186 2478.509033 2479.398926 2480.292773 2481.182666 TEST MODE Frequency (MHz) 2458.698047 2459.587939 2460.481787 2461.371680 2462.265527 2463.155420 2464.049268 2464.939160 2465.833008 2466.722900 2467.616748 2468.506641 2469.400488 2470.290381 2471.184229 2472.074121 2472.967969 2473.857861 2474.751709 2475.641602 2476.535449 2477.425342 2478.319189 2479.209082 2480.102930 2480.992822
45
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
8.8.
How to Clear User Setting (Handset Only)
Units are reset to the Factory settings by this operation (Erase stored Phone numbers, Caller list and etc.). This operation should not be performed for a usual repair.
Note: (*1) Be sure to short the battery terminals of the Handset with a lead wire, etc. for 2 seconds for discharge after removing the battery.
46
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
9 DESCRIPTION
9.1. Frequency
The frequency range of 2.4GHz-2.48GHz is used. Transmitting and receiving channel between Base Unit and Handset is same frequency. Refer to Frequency Table (P.45).
9.2.
FHSS (Frequency Hopping Spread Spectrum)
This telephone is using an IC chip which has similar specification to WDCT (World Digital Cordless Telephone) and is the telephone system that can use multiple portable unit simultaneously. The explanation of this system is mentioned below. This system uses a Time Division Multiple Access/Time Division Duplex (TDMA/TDD) scheme: transmitting and receiving frequencies of the Base Unit and Handset are shared in the same frequency. The construction of RX/TX frequency data is shown below. It consists of 4 slots from the Base Unit to the Handset, and 4 slots from the Handset to the Base Unit, total 8 slots in 10ms. By this slot system, simultaneous air link and communication between 4 Handsets and the Base Unit can be realized. One communication between Handset and the Base Unit is done by one slot from the Base Unit to Handset, and another slot from Handset to the Base Unit. DSS makes spectrum spread by multiplying carrier signal by PN code. The purpose to make spectrum spread is to reduce power density per time and per band. On the other hand, FHSS makes spectrum spread by changing channel every 10ms according to Hopping table. Also the purpose to make spectrum spread is to reduce power density per time and per band.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
9.2.1.
TDD Frame Format
Sync Field (72bit): Preamble 56bit + SyncWord 16bit Base Unit (Handset) adjusts the timing of reception so that reception of Base Unit (Handset) can correspond to transmission of Handset (Base Unit). It is necessary for sync-field that Handset gets synchronization. A - field (64bit): Each kinds of DATA: ch data, line condition, etc. B - field (320bit + 80bit): Sound data + parity Z - field (4bit): Parity Check
9.2.2.
TDMA system
This system is the cycles of 10ms, and has four duplex paths, so it is possible to perform four duplex communications simultaneously. In 1 slot 1.25ms, the 10ms of voice data is transmitted. Each slot makes every frame frequency hop. (100hops/sec.) Although each slot (UpLink3 and UpLink4) uses different frequency, UpLink3 and DownLink3 use the same frequency. · Handset Link
Traffic Bearer A link is established between Base Unit and Handset. The state where duplex communication is performed. The hopping pattern of a 3000hops (30 seconds) cycle. Dummy Bearer The Base Unit sends Dummy-data to the all stand-by state Handsets. The Handsets receive that data for keeping synchronization and monitoring request from the Base Unit. Dummy Bearer doesn´t contain B-field (sound) data.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
9.3.
Signal Flowchart in the Whole System
Reception CN101 of the Base Unit is connected to the TEL line, and signal is enter through the bridge diode D101. While talking, the relay (Q141) is turned ON and amplified at the Q171, then led to DSP (IC501). The DSP encodes ADPCM and TDD/TDMA with FHSS to TX-DATA. The TX-DATA signal is enter to IC901 of RF PART, and modulated to 2.4GHz. The RF signal is fed into Tx/Rx switch (D904). The RF signal is passed through filter (FL901) and fed to ANTENNA. As for the Handset, RF signal from the antenna passes through filter (FL901), then is routed by Tx/Rx switch (D904) and led to IC901. The RF signal is amplified by LNA and down-converted to IF signal in IC901. The IF signal passing through internal filter is demodulated into RXDATA, then enter to DSP (IC201). The DSP performs TDD/TDMA and ADPCM decoding to convert the RXDATA into the voice signal, then it is output to the speaker. Transmission The voice signal entering from the Handset microphone is led to DSP (IC201). The DSP encodes ADPCM and TDD/TDMA with FHSS to TX-DATA. The TX-DATA signal enters to IC101 of RF PART, and is modulated to 2.4GHz. The RF signal is fed into Tx/Rx switch (D904). The RF signal is passed through filter (FL901) and fed to ANTENNA. As for the Base Unit, RF signal from the antenna passes through filter (FL901), then is routed by Tx/Rx switch (D904) and led to IC901. The RF signal is amplified by LNA and down-converted to IF signal in IC901. The IF signal passing through internal filter is demodulated into RXDATA, then enter to DSP (IC501). The DSP performs TDD/TDMA and ADPCM decoding to convert the RXDATA into the voice signal. The voice signal is amplified at the TX amplifier (Q161), then output to the TEL line CN101 through the relay (Q141) and bridge (D101).
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
10 EXPLANATION OF LINK DATA COMMUNICATION
10.1. Calling
10.2. To Terminate Communication
10.3. Ringing
50
11 BLOCK DIAGRAM (BASE UNIT_MAIN)
Q141 RLY Q161 SIDE TONE CIRCUIT INUSE DETECT R131,R132
D101
KEY
CN101
Ti p Ring DC+
ANT X501 13.824MHz
Q521 Q171 RECEIVE AMP Q111
DC-
OSC AMP
DC TEL JACK
IN_USE_LED
MOD_EN
CHG_LED
RXDATA TXDATA
KEYA, B
RF_PART
KEY1
OSC_IN LOUT LIN RLY RLY DCIN BELL HSMIN HSMIP POWER_DOWN RESET VCC VRCCR VCCA VCCPA
BELL DETECT
IC501
DSP
IC331
3.3V REGULATOR
WP, CLK DATA
INT_1
VBATT2 INT_1 5 Q361 Q362 CHARGE DETECT Q371,Q372 CHARGE CONTROL CHARGE_CONTACT
+ -
IC611
EEPROM
VCC
CHG_CTL CHG
51
SDIO SDATA SCLK SLE RX_GAIN RX_EN TX_EN SHCTRL RF_RESET RSSI
IC332
2.7V RESET
IC301
2.5V REGULATOR
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
KX-TG2820/2822 BLOCK DIAGRAM (Base Unit_Main)
12 BLOCK DIAGRAM (BASE UNIT_RF PART)
DSP
MOD_EN VBATT2 SCLK SLE SDATA SDIO OSC_IN TX_EN
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
TXEN
VCC
XIN
Serial Interface
ANTENNA
52
2.4GHz
Frac-N PLL
TX_DATA
FL901
IC901
RSSI
D903,D904
2.4GHz 2MHz
FM det.
RXEN RXGAIN
Slicer
RX_DATA
TC_CTRL RSTN
2.4GHz Mod/Demod Circuit
SHCTRL RF_RESET RX_EN RX_GAIN
KX-TG2820/2822 BLOCK DIAGRAM (Base Unit_RF Part)
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13 CIRCUIT OPERATION (BASE UNIT_MAIN)
General Description: (DSP, EEPROM) is a digital speech/signal processing system that implements all the functions of speech compression and memory management required in a digital telephone. The DSP system is fully controlled by a host processor DSP. The host processor provides activation and control of all that functions as follows.
13.1. DSP (Digital Speech/Signal Processing: IC501)
· DTMF Detection/Generator The DTMF detection is implemented by the DSP system in software. The DTMF detection is performed during Line Monitoring modes of operation. When the DTMF data from the Handset is received, the DTMF signal is output. · Caller ID demodulation The DSP implements monitor and demodulate the FSK signals that provide CID information from the Central Office. · Analog Switching The voice signal from telephone line is transmitted to the speaker or the voice signal from speakerphone microphone is transmitted to the Telephone line, etc. They are determined by the signal path route operation of voice signal. · Block Interface Circuit RF part, LED, Key scan, Telephone line.
13.2. EEPROM (IC611)
Following information data is stored. · Settings ex: ID code, Recall Time, Tone/Pulse
53
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.3. Power Supply Circuit
Function: The power supply voltage from AC adaptor is converted to the desired voltage of each block. Circuit Operation: · IC301: 2.5V Regulator · IC331: 3.3V Regulator
54
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.3.1. Charge Circuit
The voltage from the AC is supplied to the charge circuits. Main charge (180mA at the Battery) of maximum 6-hours is started soon after the Handset is placed on the Base Unit. Then it changes to Trickle charge to prevent from overcharging.
Q361 and Q362 detect the ON-HOOK state (Handset is placed on Base Unit).
Q371 and Q372 control the charge current.
55
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.4. Reset Circuit
Function: This circuit is used to initialize the microcomputer when it incorporates an AC adaptor. Circuit Operation: When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC331 and power is supplied to the DSP. The set starts to operate when VCC goes up to 2.7V or more in the circuit voltage diagram.
Note: (*1) The initializing time of the DSP chip is 26.6ms under normal conditions.
56
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.5. Telephone Line Interface
Telephone Line Interface Circuit: Function · Bell signal detection · ON/OFF hook and pulse dial circuit · Side tone circuit Bell signal detection and OFF HOOK circuit: In the idle mode, Q141 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T) and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows: T L101 R111 C111 Q111 DSP pin 3 [BELL] When the CPU (DSP) detects a ring signal, Q141 turns on, thus providing an off-hook condition (active DC current flow through the circuit). Following signal flow is the DC current flow. T L101 D101 Q141 Q161 R163 D101 L102 P101 R ON HOOK Circuit: Q141 is open, Q141 is connected as to cut the DC loop current and to cut the voice signal. The unit is consequently in an onhook condition. Pulse Dial Circuit: Pin 4 of DSP turns Q141 ON/OFF to make the pulse dialing. Side Tone Circuit: Basically this circuit prevents the TX signal from feeding back to RX signal. As for this unit, TX signal feed back from Q161 is canceled by the canceller circuit of DSP.
57
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.6. Parallel Connection Detect Circuit
Function: This circuit determines whether the telephone connected in parallel is on hook or off hook by detecting changes in the T/R voltage. Circuit Operation: Parallel connection detection when on hook: When on hook Q136 is ON, the voltage is monitored pin 35 of IC501. There is no parallel connection if the voltage is 1.65 V or higher, while a parallel connection is deemed to exist if the voltage is lower. Parallel connection detection when off hook: When off hook Q136 is OFF, the voltage is monitored pin 35 of IC501; the presence/absence of a parallel connection is determined when the voltage changes by 0.2 V or more.
58
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.7. Calling Line Identification (Caller ID)
Function: The caller ID is a chargeable ID which the user of a telephone circuit obtains by entering a contract with the telephone company to utilize a caller ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used. The Caller-ID data from exchange is supplied to the telephone using either method of FSK or DTMF. The method is chosen according to the exchange of telephone office. This unit is available to receive the data with both methods and displays the received data on LCD. · FSK (Frequency Shift Keying) format
· DTMF format It is the method to send the telephone number of calling party with DTMF to the telephone. DTMF is sent before the first bell signal. The data is sent in turn; first the start code, secondly the telephone number of calling party, lastly end code. The DTMF is chosen from A (1633Hz and 697Hz), B (1633Hz and 770Hz), C (1633Hz and 852Hz) and D (1633Hz and 941Hz) as the start code and end code according to the exchange.
59
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
13.8. 2.4GHz Mod/Demod Circuit (Base Unit RF Part)
IC901 incorporates all of the modulation and demodulation functions. TX Digital data (TX_DATA) from DSP is supplied to pin 27 of IC901, and then 2.4GHz TX modulated signal is output from pin1. This TX signal is filtered by BPF (FL901) and supplied to Antenna. 2.4GHz RX signal from the Antenna is filtered by BPF (FL901) and supplied to pin4 of IC901, then demodulated signal (RX_DATA) comes out from pin 16. At the same time, RSSI (Received Signal Strength Indicator) outputs from pin 14. Reference clock (13.824MHz) from DSP block is supplied to pin 11 of IC901. VBATT2 supplies 2.5V regulated voltage.
60
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
14 BLOCK DIAGRAM (HANDSET_MAIN)
IC241
Q231 CHARGE DETECT
CHG_DET
EEPROM
X201 13.824MHz
ANT
WP, SCL, SDA
Q361 CHARGE D361
Q362, Q363 CHARGE CONTROL IC221, Q221 RESET
RESET CHG_CTL
OSC_IN TX_DATA RX_DATA MOD_EN SDIO SDATA SCLK SLE RX_GAIN RX_EN TX_EN SHCTRL RF_RESET RSSI
RF part
IC374
BATTERY POWER DOWN
PDN
IC371
2.6V REGULATOR
VCC VCCR VCCA VCCPA
VBATT2
MIC
MIP MIN
IC201
DSP
IC373, Q373
3.0V CONVERTOR
SP
LOUTO (SP)
HSSPOUT
LCD_LIGHT
Monitor SP
SPOUTP SPOUTN AGPIO0
CI
IC381
2.5V REGULATOR
LCD
KEYS
KX-TGA243/246 BLOCK DIAGRAM (Handset)
61
KEYIN_1~5
ANT_LIGHT
KEYSTOROBE_A~F
15 BLOCK DIAGRAM (HANDSET_RF PART)
DSP
MOD_EN VBATT2 SCLK SLE SDATA SDIO OSC_IN TX_EN
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
TXEN
VCC
XIN
Serial Interface
ANTENNA
62
2.4GHz Frac-N PLL
TX_DATA
FL901
IC901
RSSI
D903,D904
2.4GHz 2MHz
FM det.
RXEN RXGAIN
Slicer
RX_DATA
TC_CTRL RSTN
2.4GHz Mod/Demod Circuit
SHCTRL RF_RESET RX_EN RX_GAIN
KX-TGA243/246 BLOCK DIAGRAM (Handset_RF Part)
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
16 CIRCUIT OPERATION (HANDSET)
16.1. Construction
The circuit mainly consists of DSP and RF part as shown in the block diagram.
16.1.1. DSP: IC201
Function · Battery Low, Power down detect circuit · Ringer Generation · Interface circuit RF part, Speaker, Mic, LED, Key scan, LCD, Headset Initialize
Note: (*1) The initializing time of the DSP chip is 20ms under normal conditions.
16.1.2. RF part
Mainly voice signal is modulated to RF, or it goes the other way.
16.1.3. EEPROM: IC241
All setting data is stored. ex: ID code, user setting (Phonebook, Caller ID data)
63
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
16.2. Power Supply Circuit
Voltage is supplied separately to each block.
64
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
16.3. Charge Circuit
When the Handset is put on the cradle of the Base unit or the optional charger, the power is supplied from CHARGE+ and CHARGE- terminals to charge the battery via R368 or Q361 and D361. The voltage between CHARGE+ and CHARGE- flows R231 Q231 pin38 of IC201, where the charge is detected. Then IC201 calculates the battery consumption amount from the previous charge, and it controls Q361/Q362/Q363 by pin80 of IC201 until charging is complete. When charging is complete, the control pattern is switched to Trickle charging form from Operational charging form.
16.4. Ringer and Handset SP-Phone
65
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
16.5. Sending Signal
The voice signal from the microphone is input to DSP (90, 91). Also the power for the microphone is supplied from DSP (92) and the power is turned OFF on standby.
16.6. Reception Signal
The voice signal from the Base Unit is output to DSP (98) (HSSPOUT). This signal is led to C335. The signal and the other signal output from DSP (97) drives the speaker.
66
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
16.7. 2.4GHz Mod/Demod Circuit (Handset RF Part)
IC901 incorporates all of the modulation and demodulation functions. TX Digital data (TX_DATA) from DSP is supplied to pin 27 of IC901, and then 2.4GHz TX modulated signal is output from pin1. This TX signal is filtered by BPF (FL901) and supplied to Antenna. 2.4GHz RX signal from the Antenna is filtered by BPF (FL901) and supplied to pin4 of IC901, then demodulated signal (RX_DATA) comes out from pin 16. At the same time, RSSI (Received Signal Strength Indicator) outputs from pin 14. Reference clock (13.824MHz) from DSP block is supplied to pin 11 of IC901. VBATT2 supplies 2.5V regulated voltage.
67
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
17 CIRCUIT OPERATION (CHARGER UNIT)
The voltage from the AC is supplied to the charge circuits. Main charge (165mA at the Battery) of maximum 6-hours is started soon after the Handset is placed on the charger unit. Then it changes to Trickle charge (average 10mA at the Battery) to prevent from overcharging. Charging form
Q4 detects charging (Handset is placed on the charger unit), then Q5 turns ON and LED1 lights up.
Q2 and Q3 regulate the charge current. The route for this is as follows: DC+pin of CN1D1IC1D2CHARGE+padHandsetCHARGE-padQ2R4 and R9 and R10DC-pin of CN1.
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KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
18 SIGNAL ROUTE
Each signal route is as follows.
RF part signal route
69
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
19 CPU DATA (BASE UNIT)
19.1. IC501
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Description LINE_SZ NOT_RLY BELL RLY AC_DOWN_DET NC NC KEY_STB_ D KEY_STB_ C KEY_STB_ B KEY_STB_ A CHG_CTR CHG_DET VCC GND EROM_WP EROM_DATA EROM_CLK KEY_IN_ 3 KEY_IN_ 2 KEY_IN_ 1 NC SYN_DATA SYN_LE1 SYN_CLK SYN_DI NC GND SPOUTP GNDPA SPOUTN VCCPA HSSPOUT LOUT0 DCIN0 LIN0 VCCA GNDA HSMIP HSMIN VREF MIN MIP GNDR TXMOD VREFR RSSI VCCR GNDPLL VCCPLL XOUT XIN GND Reset Power Down NC TX_OUT MOD_EN NC NC NC NC I/O D.O D.O D.I D.O D.I D.O D.O D.O D.O D.O D.O D.O D.I VCC GND D.O D.I.O D.O D.I D.I D.I D.O D.O D.O D.O D.I D.O GND A.O GND A.O VCC A.O A.O A.I A.I VCC A.I A.I A.I A.O A.I A.I GND A.O A.O A.I VCC GND VCC A.O A.I GND D.I D.I D.O D.O D.O D.O D.O D.O D.O High On On Hook OFF Off Hook High --Active Active Active Active No Charge Off Charge VCC -WP High High Non Non Non -High Not High High -High_Z -------Not Not Not Not ----------------Low Off Off Hook ON On Hook Low ------Charge On Charge -GND Write Low Low Key In Key In Key In -Low Active Low Low -PIN 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Description RXEN TXEN RXGAIN RXI CHG_LED INUSE_LED NC RF_RST RADIO_EN GND VCC SHCTRL NC TCK TMS TDI TD0 NC NC NC NC NC NC NC NC NC NC NC NC UART_TX UART_RX INT0 NC GND VCC NC NC INT_1 I/O D.O D.O D.O D.I D.I.O D.I.O D.O D.O D.O GND VCC D.O D.O D.O D.I D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O D.I D.O D.O GND VCC D.O D.O D.O High Active Active High High ---Normal Active -VCC Active -----------------High High ---VCC ---High_Z ----Off Off --------------------------------Low Off Off Low Low On On -WakeUp Not GND -Not -----------------Low Low --GND -----
Note: · Data in the blank columns are omitted because of the Analog I/O.
Normal Normal -High Active -----
----------
Reset Power Down -Low Not -----
70
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
20 CPU DATA (HANDSET)
20.1. IC201
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Description GNDPA SPOUTP BCLK RSSI XIN XOUT VDD VCCIN GND GND DCIN0 DCOUT RESET (FLASH _RESET) (FLASH_SO) (FLASH_SI) (FLASH_CS) NC SERIAL DI TX OUT MOD_EN NC NC RF RESET NC SHCTRL NC GND VCC SERIAL_LE SERIAL_CLK SERIAL_DATA RXEN TXEN RXGAIN RXI NC CHARGE_DET OSC_Buf EEPROM_DET NC NC NC DOT_LCD_D7 DOT_LCD_D6 DOT_LCD_D5 DOT_LCD_D4 GND VCC DOT_LCD _RESET (FLASH_SCK) NC LED_BL1 LED_BL2 LED_BL3 DOT_LCD_RS DOT_LCD _RW_WR DOT_LCD _E_RD DOT_LCD _POWER_SW ANT_LED I/O High GND -A.O -A.O -A.I -A.I -A.O -VDD -VCC VCC GND -GND -A.I -A.O -D.I Normal D.O -D.O -D.O High D.O -D.O -D.I High D.O High D.O On D.O -D.O -D.O Normal D.O -D.O On D.O -GND -VCC VCC D.O High D.O High D.I High D.O Active D.O Active D.O High D.I -D.O -D.I Off Charge D.O -D.O 64K D.O -D.O -D.O -D.O High D.O High D.O High D.O High GND -VCC VCC D.O Normal D.O D.O D.O D.O D.O D.O D.O D.O D.O D.O High -On On On Data Read Active On On High_Z ------------------------------------------------------------Low GND -------GND GND --Reset Normal Normal Low Normal Normal Low Low Off Normal Normal Reset Normal Off Normal GND -Low Low Low Off Off Low -Normal On Charge -16K Normal Normal Normal Low Low Low Low GND -Reset Low Normal Off Off Off Instruct Write Not Off Off PIN 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Description LIGHTED NC KEYSTROBE _E KEYSTROBE _D KEYSTROBE _C KEYSTROBE _B KEYSTROBE _A GND VCC TEST_CLK TEST_MODE _SELECT TEST_DATA _IN TEST_DATA _OUT KEYIN1 KEYIN2 KEYIN3 KEYIN4 KEYIN5 NC CHARGE_CNT EEPROM_CLK EEPROM _DATA UART_TX UART_RX EEPROM_WP GND PDN Battlow VREF MIP MIN DCIN2 GNDA VCCA Headset _MIC_in HEADSET_DET ROUT0 HSSPOUT VCCPA SPOUTN I/O D.O D.O D.O D.O D.O D.O D.O GND VCC D.I D.I D.I D.O D.I D.I D.I D.I D.I D.O D.O D.O D.I.O D.O D.I D.O GND A.I A.I A.O A.I A.I A.I GND VCC A.I A.I A.O A.O VCC A.O High On -------VCC ----Non Non Non Non Non -Trickle High High High High WP --------VCC ----VCC -High_Z --Not Not Not Not Not ---------------------------------Low Off Normal Active Active Active Active Active GND -----Key In Key In Key In Key In Key In Normal Normal Low Low Low Low Write GND ------GND --------
71
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
21 EXPLANATION OF IC TERMINALS (RF PART)
21.1. IC901
72
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
22 HOW TO REPLACE A FLAT PACKAGE IC
Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
22.1. PREPARATION
· PbF (: Pb free) Solder · Soldering Iron Tip Temperature of 700°F ± 20°F (370°C ± 10°C) Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil. · Flux Recommended Flux: Specific Gravity 0.82. Type RMA (lower residue, non-cleaning type) Note: See ABOUT LEAD FREE SOLDER (PbF: Pb free) (P.4)
22.2. FLAT PACKAGE IC REMOVAL PROCEDURE
1. Put plenty of solder on the IC pins so that the pins can be completely covered. Note: If the IC pins are not soldered enough, you may give pressure to the P.C. board when cutting the pins with a cutter.
2. Make a few cuts into the joint (between the IC and its pins) first and then cut off the pins thoroughly.
3. While the solder melts, remove it together with the IC pins.
When you attach a new IC to the board, remove all solder left on the land with some tools like a soldering wire. If some solder is left at the joint on the board, the new IC will not be attached properly.
73
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
22.3. FLAT PACKAGE IC INSTALLATION PROCEDURE
1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins.
*Check the accuracy of the IC setting with the corresponding soldering foil. 2. Apply flux to all pins of the FLAT PACKAGE IC.
3. Solder the pins, sliding the soldering iron in the direction of the arrow.
22.4. BRIDGE MODIFICATION PROCEDURE
1. Lightly resolder the bridged portion. 2. Remove the remaining solder along the pins using a soldering iron as shown in the figure below.
74
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
23 CABINET AND ELECTRICAL PARTS (BASE UNIT)
23.1. KX-TG2820LAB
75
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
23.2. KX-TG2822LAB
76
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
24 CABINET AND ELECTRICAL PARTS (HANDSET)
Note: (*1) Attach the spacer (No. 124) to the exact location described above. (*2) This cable is fixed by welding. Refer to HOW TO REPLACE THE HANDSET LCD (P.21).
77
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
25 CABINET AND ELECTRICAL PARTS (CHARGER UNIT)
78
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
26 ACCESSORIES AND PACKING MATERIALS
26.1. KX-TG2820LAB
79
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
26.2. KX-TG2822LAB
80
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
27 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES
27.1. Base Unit
27.2. Handset
81
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
27.3. Charger Unit
82
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
28 REPLACEMENT PARTS LIST
Note: 1. RTL (Retention Time Limited) The marking (RTL) indicates that the Retention Time is limited for this item. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of availability depends on the type of assembly and the laws governing parts and product retention. At the end of this period, the assembly will no longer be available. 2. Important safety notice Components identified by the mark indicates special characteristics important for safety. When replacing any of these components, only use specified manufacture´s parts. 3. The S mark means the part is one of some identical parts. For that reason, it may be different from the installed part. 4. ISO code (Example: ABS-94HB) of the remarks column shows quality of the material and a flame resisting grade about plastics. 5. RESISTORS & CAPACITORS Unless otherwise specified; All resistors are in ohms () K=1000, M=1000k All capacitors are in MICRO FARADS (µF) P=µµF *Type & Wattage of Resistor
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Ref. No. 7 8 9 10 11 12 13 14 15 16 Part No. PQSA10161Y PQHR11075Z PQJT10218Y PQJT10219Y PQKE10384Z2 PQKE10385Z2 PQKF10668Z2 PQGT17873Z PQHA10011Z PQHA10023Z Part Name & Description ANTENNA CASE, CHARGE TERMINAL CHARGE TERMINAL (R) CHARGE TERMINAL (L) HOLDER, CHARGE TERMINAL (R) HOLDER, CHARGE TERMINAL (L) CABINET COVER NAME PLATE RUBBER PARTS, FOOT CUSHION RUBBER PARTS, FOOT CUSHION Remarks PS-HB
POM-HB POM-HB PS-HB
28.1.1.2. KX-TG2822LAB
Ref. No. Part No. PQGG10274Z4 PQQT22926Z 2AGG10275Z2 2CKM10653Z2 PQHR11076Z PQHR11077Z PQBC10419Z1 PQBC10420Z1 PQSA10161Y PQHR11075Z PQJT10218Y PQJT10219Y PQKE10384Z2 PQKE10385Z2 PQKF10651Y2 PQGT17877Z PQHA10011Z PQHA10023Z Part Name & Description GRILLE, CRADLE LABEL, CHARGE GRILLE, LOCATOR CABINET BODY OPTIC CONDUCTIVE PARTS, LED LENDS (IN USE) OPTIC CONDUCTIVE PARTS, LED LENDS (CHARGE) BUTTON, LOCATOR1 BUTTON, LOCATOR2 ANTENNA CASE, CHARGE TERMINAL CHARGE TERMINAL (R) CHARGE TERMINAL (L) HOLDER, CHARGE TERMINAL (R) HOLDER, CHARGE TERMINAL (L) CABINET COVER NAME PLATE RUBBER PARTS, FOOT CUSHION RUBBER PARTS, FOOT CUSHION Remarks PC-HB
PS-HB PS-HB PS-HB ABS-HB ABS-HB PS-HB
POM-HB POM-HB PS-HB
28.1.2. Main P.C. Board Parts
Note: (*1) When you have replaced IC501 or IC611, adjust X501. Refer to Check and Adjust X501 (Base Unit) Frequency (P.42).
Ref. No. PCB1 PCB1 Part No. PQWPG2820LAH PQWPG2822LAH Part Name & Description MAIN P.C.BOARD ASS´Y (RTL) (for KX-TG2820LAB) MAIN P.C.BOARD ASS´Y (RTL) (for KX-TG2822LAB) (ICs) IC IC IC IC (*1) IC (for KX-TG2820LAB) (*1) IC (for KX-TG2822LAB) (*1) IC (TRANSISTORS) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) (DIODES) Remarks
28.1. Base Unit
28.1.1. Cabinet and Electrical Parts 28.1.1.1. KX-TG2820LAB
Ref. No. 1 2 3 4 5 6 Part No. PQGG10274Z2 PQQT22926Z 2CKM10653Y2 PQHR11076Z PQHR11077Z PQBC10421Z1 Part Name & Description GRILLE, CRADLE LABEL, CHARGE CABINET BODY OPTIC CONDUCTIVE PARTS, LED LENDS (IN USE) OPTIC CONDUCTIVE PARTS, LED LENDS (CHARGE) BUTTON, LOCATOR Remarks PC-HB PS-HB PS-HB PS-HB ABS-HB
IC301 IC331 IC332 IC501 IC611 IC611 IC901 Q111 Q131 Q141 Q142 Q161 Q171 Q361 Q362 Q371 Q372 Q521
C0CBAAF00031 C0CBABF00020 C0EBE0000503 C2HBBK000086 PQWIG2820LAH PQWIG2822LAH C1CB00001657 2SD1819A 2SD1819A B1ADGP000008 B1BBAP000021 2SD0874AS 2SD1819A 2SB1218A PQVTDTC144TU 2SD1758Q 2SD1819A 2SC39300CL
S S
83
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
Ref. No. D101 D113 D133 D142 D301 D361 D362 D371 D903 D904 LED677 LED679 L101 L102 L300 L361 L371 L501 L901 L902 L903 L904 L905 L909 L911 L913 L990 RA501 RA901 SA102 SA103 R111 R112 R113 R114 R121 R122 R131 R132 R134 R136 R137 R141 R142 R143 R145 R161 R162 R163 R164 R165 R167 R168 R171 R172 R175 R176 R178 R183 R185 R361 R364 R365 R371 R372 R373 R374 R375 R421
Part No. PQVDMD5S MA111 MA111 PQVDRLZ20A B0JCME000035 MA8220 B0ECKM000008 MA8220 B0DCCD000011 B0DCCD000011 PQVDHPY1105W PSVD111R820R PQLQXF330K PQLQXF330K PQLQXF3R3K G1C6R8MA0072 G1C6R8MA0072 PQLQR2KA213 MQLPF18NJFB MQLPF10NJFB MQLRF3N3DFB MQLRF22NJFB MQLRF10NJFB MQLRF3N9DFB MQLRF2N7DFB MQLRF18NJFB G1C1R0KA0096 D1H84724A013 D1H810240004 PQVDDSS301L PQVDDSS301L ERJ3GEYJ104 ERJ3GEYJ104 ERJ3GEYJ103 ERJ2GEJ473 ERJ3GEYJ394 ERJ3GEYJ394 ERJ3GEYJ106 ERJ3GEYJ395 ERJ2GEJ102 ERJ3GEYJ135 ERJ3GEYJ473 ERJ3GEYJ104 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ473 ERJ3GEYJ751 ERJ3GEYJ393 ERJ12YJ330 ERJ3GEYJ470 ERJ3GEYJ431 ERJ2GEJ102 ERJ3GEY0R00 ERJ2GEJ270 ERJ2GEJ104 ERJ2GEJ561 ERJ2GEJ101 ERJ2GEJ102 ERJ2GEJ222 ERJ2GEJ333 ERJ3GEYJ332 ERJ3GEYJ103 ERJ3GEYJ102 ERJ3GEYJ8R2 ERJ3GEYJ120 ERJ3GEYJ150 ERJ3GEYJ101 ERJ3GEYJ391 ERJ2GEJ473
Part Name & Description DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) LED LED (COILS) COIL COIL COIL COIL COIL COIL COIL COIL COIL COIL COIL COIL COIL COIL COIL (COMPONENTS PARTS) RESISTOR ARRAY RESISTOR ARRAY (VARISTORS) VARISTOR (SURGE ABSORBER) VARISTOR (SURGE ABSORBER) (RESISTORS) 100K 100K 10K 47K 390K 390K 10M 3.9M 1K 1.3M 47K 100K 10K 10K 47K 750 39K 33 47 430 1K 0 27 100K 560 100 1K 2.2K 33K 3.3K 10K 1K 8.2 12 15 100 390 47K
Remarks
S S S S S
S S S S
S
Ref. No. R422 R423 R521 R522 R523 R524 R525 R533 R611 R612 R675 R677 R906 R909 R919 R930 R931 R932 R933 R940 R941 R942 R943 R991 J600 J601 C101 C102 C111 C112 C113 C120 C121 C122 C132 C142 C161 C162 C163 C165 C166 C167 C172 C176 C178 C179 C184 C185 C303 C305 C306 C341 C342 C343 C347 C352 C361 C365 C371 C373 C380 C381 C421 C422 C423 C501 C503 C504 C508 C509 C513 C515
Part No. ERJ2GEJ102 ERJ2GEJ102 ERJ2GEJ182 ERJ2GEJ151 ERJ2GEJ393X ERJ2GEJ561 ERJ2GEJ681 ERJ2GEJ472X ERJ3GEYJ102 ERJ2GEJ103 ERJ2GEJ821 ERJ2GEJ331 ERJ2RKF103X ERJ2GEJ331 ERJ2GEJ102 ERJ2GEJ102 ERJ2GEJ102 ERJ2GEJ102 ERJ2GEJ331 ERJ2GEJ4R7 ERJ2GEJ100 ERJ2GEJ100 ERJ2GE0R00 ERJ2GEJ102 ERJ2GE0R00 ERJ2GE0R00 ECUV2H681KB ECUV2H681KB F1J2A473A024 F1J2A473A024 PQCUV1A684KB ECUE1E562KBQ ECUV1H681JCV ECUV1H681JCV ECUV1H103KBV ECUV1H103KBV EEE1EA100WR ECUV1H101JCV ECJ1VB1H472K ECUV1C473KBV EEE1CA100SR ECUV1A224KBV ECUE1H272KBQ EEE0JA470SR ECUV1C473KBV ECUE1C153KBQ F1G1A473A032 F1G1C183A081 ECUV1H103KBV ECUV1H103KBV EEE1CA101WP EEE0JA331P F1G1A1040003 F1G1A1040003 F1G1A1040003 F1G1A1040003 ECUV1H102KBV ECJ0EB1C103K ECUV1C104KBV F3F0J106A057 EEE0GA331WP F1G1A1040003 F1G1A1040003 F1G1A1040003 F1G1A1040003 F1G1A1040003 F1G1A1040003 F1G1A1040003 ECUE1H020CCQ ECUE1H020CCQ F1G1A1040003 F1G0J1050007
Part Name & Description 1K 1K 1.8K 150 39K 560 680 4.7K 1K 10K 820 330 10K 330 1K 1K 1K 1K 330 4.7 10 10 0 1K 0 (for KX-TG2822LAB) 0 (for KX-TG2820LAB) (CAPACITORS) 680P 680P 0.047 0.047 0.68 0.0056 680P 680P 0.01 0.01 10 100P 0.0047 0.047 10 0.22 0.0027 47 0.047 0.015 0.047 0.018 0.01 0.01 100P 330 0.1 0.1 0.1 0.1 0.001 0.01 0.1 10 330 0.1 0.1 0.1 0.1 0.1 0.1 0.1 2P 2P 0.1 1
Remarks
S S
S S
S S
S
S S S
84
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
Ref. No. C516 C517 C518 C521 C522 C524 C525 C551 C611 C612 C660 C904 C910 C911 C917 C918 C922 C937 C938 C939 C940 C941 C942 C944 C946 C952 C956 C960 C962 C963 C964 C965 C976 C977 C979 C980 C983 C984 C990 C991 C992 C993 C996 C997 C998 E1 E2 CN101 FL901 P101 S661 S662 X501
Part No. F3F0J106A057 F1G1A1040003 F1J0J1060006 ECUE1H3R0CCQ F1G1A1040003 F1G1A1040003 F1G1A1040003 ECJ0EB1C103K F1G1A1040003 ECUV1H101JCV F1G1A1040003 ECUE1H020CCQ ECUE1H1R5CCQ ECUE1H470JCQ ECUE1H100DCQ ECUE1H5R0CCQ ECUE1H100DCQ ECUE1H471KBQ ECUE1H100DCQ ECUE1H100DCQ ECUE1C103KBQ ECUE1H102KBQ PQCUV0J475MB F1G1A1040003 ECUE1H222KBQ ECUE1H020CCQ ECUE1H100DCQ ECUE1H100DCQ ECUE1H100DCQ ECUE1H100DCQ ECUE1H102KBQ ECJ0EC1H221J F1G1A1040003 ECUE1H102KBQ ECUE1H102KBQ ECUE1C103KBQ ECUE1H102KBQ ECUE1H101JCQ ECUE1H102KBQ ECUE1H5R0CCQ F1G1H121A444 F1G1A1040003 F1G1A1040003 ECUE1H0R5CCQ ECUE1H0R5CCQ PQMC10494Z PQMC10493Z PQJJ2H003Z J0E2457B0008 PFRT002 PQSH1A117Z PQSH1A117Z H0J138500003
Part Name & Description 10 0.1 10 3P 0.1 0.1 0.1 0.01 0.1 100P 0.1 2P 1.5P 47P 10P 5P 10P 470P 10P 10P 0.01 0.001 4.7 0.1 0.0022 2P 10P 10P 10P 10P 0.001 220P 0.1 0.001 0.001 0.01 0.001 100P 0.001 5P 120P 0.1 0.1 0.5P 0.5P (OTHERS) MAGNETIC SHIELD, FRAME MAGNETIC SHIELD, COVER JACK LCR FILTER THERMISTOR (POSISTOR) SWITCH, TACT SWITCH, TACT (for KXTG2822LAB only) CRYSTAL OSCILLATOR
Remarks
S
S S S S S S S S S S S S S S S S S S
Ref. No. 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
Part No. 1ABC10422Z1 PQSX10280R PQSA10162Z PQWE10036Z PQJT10216Z PQJT10217Z PQHR10778Z PQHG10689Z L0AD02A00026 PQHS10622Z PQKF10664Z2 PQKE10394Z5 PQHR11080Z PQHR11081Z PQHX11294X HHR-P105A PQHS10681Y PQKK10586Z2
Part Name & Description BUTTON, NAVI KEY KEYBOARD SWITCH ANTENNA BATTERY TERMINAL CHARGE TERMINAL (R) CHARGE TERMINAL (L) GUIDE, SP HOLDER SPACER, SPEAKER SPEAKER SPACER, SPEAKER CABINET COVER COVER, LED CAP OPTIC CONDUCTIVE PARTS, LED LENS GUIDE, LED CAP PLASTIC PARTS, BATTERY COVER SHEET BATTERY SPACER, BATTERY LID, BATTERY COVER
Remarks ABS-HB
ABS-HB
ABS-HB
ABS-HB PC+ABSHB PMMA-HB ABS-HB
ABS-HB
28.2.2. Main P.C. Board Parts
Note: (*1) When you have replaced IC201 or IC241, adjust X201. Refer to Check and Adjust X201 (Handset) Frequency (P.42) and Adjust Battery Low Detector Voltage (Handset) (P.42). (*2) When replacing the Handset LCD, see HOW TO REPLACE THE HANDSET LCD (P.21)
Ref. No. PCB100 IC201 IC221 IC241 IC371 IC373 IC374 IC381 IC901 Q221 Q231 Q243 Q251 Q252 Q253 Q361 Q362 Q363 Q373 D223 D361 D373 D903 D904 LED256 LED257 LED258 LED261 L326 L327 L373 L901 L902 Part No. PQWPG2820LAR C2HBBK000090 PQVIC61CC22N PQWIG2820LAR C0CBCAD00071 C0DBAGZ00053 PQVIC61CC20N C0CBCAD00070 C1CB00001657 2SD1819A UN521 UNR521500L PSVTUMG11NTR PSVTUMG11NTR UN521 2SB1197KQ 2SD1819A PQVTDTC143E PQVTXP151A13 MA111 B0JCMD000010 MA21D3400L B0DCCD000011 B0DCCD000011 B3ACB0000115 B3ACB0000115 B3ACB0000115 B3ACB0000134 G1CR47J00005 G1CR47J00005 G1C470MA0176 MQLPF18NJFB MQLPF10NJFB Part Name & Description MAIN P.C.BOARD ASS´Y (RTL) (ICs) IC (*1) IC IC (for KX-TGA243LAB) (for KX-TGA246LAB)(*1) IC IC IC IC IC (TRANSISTORS) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) (DIODES) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) LED LED LED LED (COILS) COIL COIL COIL COIL COIL Remarks
S S S S S S
S
S S
S
S S
S S S S S S S S S
28.2. Handset
28.2.1. Cabinet and Electrical Parts
Ref. No. 101 102 102 103 104 105 106 107 107 Part No. PQGP10280Z2 2AKM10672Z2 2BKM10672Z2 PQHS10658Z L0AD02A00023 PQHR11106Z PQHS10652Z PQGT17874Z PQGT17878Z Part Name & Description PANEL, LCD CABINET BODY (for KXTGA243LAB) CABINET BODY (for KXTGA246LAB) SPACER, RECEIVER RECEIVER GUIDE, RECEIVER SPACER, LCD CUSHION NAME PLATE (for KX-TGA243LAB) NAME PLATE (for KX-TGA246LAB) Remarks AS-HB ABS-HB ABS-HB
ABS-HB
85
KX-TG2820LAB / KX-TG2822LAB / KX-TGA243LAB / KX-TGA246LAB
Ref. No. L903 L904 L905 L909 L911 L913 L990 RA201 RA901 CA271 CA274 R203 R208 R209 R222 R223 R225 R226 R227 R231 R234 R241 R242 R243 R252 R256 R257 R258 R261 R272 R273 R312 R314 R315 R317 R318 R323 R325 R332 R340 R361 R362 R363 R368 R376 R377 R401 R402 R906 R909 R919 R930 R931 R932 R933 R940 R941 R942 R943 R991 C201 C202 C204 C206 C208 C211 C212 C214 C215 C221
Part No. MQLRF3N3DFB MQLRF22NJFB MQLRF10NJFB MQLRF3N9DFB MQLRF2N7DFB MQLRF18NJFB G1C1R0KA0096 EXRV8V472JV D1H810240004 F5A424740002 F5A841040004 ERJ2GEJ104 ERJ2GEJ100 ERJ2GEJ104 ERJ2GEJ223 ERJ2GEJ224 ERJ2GEJ102 ERJ2GEJ273X ERJ2GEJ224 ERJ2GEJ223 ERJ2GEJ103 ERJ2GEJ103 ERJ2GEJ102 ERJ2GEJ274 ERJ2GEJ