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ORDER NO. KM40204852C3
Telephone Equipment
KX-TC1205RUB KX-TC1205RUW KX-TC1205RUS KX-TC1205RUF
Cordless Phone
Black Version White Version Silver Version Blue Version (for Russia)
© 2002 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
CONTENTS
Page
1 BATTERY 1.1. Recharge 1.2. Battery information 2 BATTERY REPLACEMENT 3 LOCATION OF CONTROLS 3.1. Base Unit 3.2. Handset 4 CONNECTION 4.1. Adding Another Phone 5 OPERATIONS 5.1. Making Calls 5.2. Answering Calls 5.3. Storing Phone Numbers in Memory 5.4. Storing a Phone Number in the DIRECT Button 5.5. Dialing a Stored Number 5.6. Dialing a Stored Number in the DIRECT Button 5.7. FLASH Button 6 DISASSEMBLY INSTRUCTIONS 7 TROUBLESHOOTING GUIDE 7.1. Check Power 7.2. Bell Reception 7.3. Check Battery Charge 7.4. Check Link 7.5. Check Handset Transmission 7.6. Check Handset Reception 4 4 4 5 6 6 6 7 9 10 10 10 11 11 12 12 13 14 16 17 18 19 20 22 22 8 ADJUSTMENTS (BASE UNIT) 8.1. Test Mode Flow Chart (Base Unit) 8.2. How to change the channel 8.3. Adjustment 8.4. Adjustment Standard (Base Unit) 9 ADJUSTMENTS (HANDSET) 9.1. Test Mode Flow Chart (Handset) 9.2. How to change the channel 9.3. Adjustment 9.4. Adjustment Standard (Handset) 10 RF SPECIFICATION 10.1. Base Unit 10.2. Handset 11 HOW TO CHECK THE HANDSET SPEAKER 12 FREQUENCY TABLE (MHz) 13 EXPLANATION OF CPU DATA COMMUNICATION 13.1. STAND-BY -> TALK, TALK -> STAND-BY 13.2. Ringing 13.3. Changing the Channel 13.4. Ports for transmitting and receiving of data 13.5. Waveform of DATA used for cordless transmission and reception 14 BLOCK DIAGRAM (BASE UNIT) 15 BLOCK DIAGRAM (HANDSET) 16 CIRCUIT OPERATION 35 36 37 38
Page
23 23 24 24 25 26 26 27 27 28 30 30 30 30 31 32 32 33 34 35
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16.1. Outline 16.2. Power Supply Circuit 16.3. Reset Circuit (Base Unit) 16.4. Charge Circuit 16.5. Telephone Line Interface 16.6. Transmitter/Receiver 16.7. Signal Route 17 CIRCUIT OPERATION (HANDSET) 17.1. Reset Circuit (Handset) 17.2. Battery Low / Power Down Detector 18 CPU DATA (Base Unit) 18.1. IC2 19 CPU DATA (Handset) 19.1. IC2 20 HOW TO REPLACE FLAT PACKAGE IC 20.1. Preparation 20.2. Procedure 20.3. Modification Procedure of Bridge
38 39 40 41 41 42 44 45 45 46 47 47 48 48 49 49 49 49
23 ACCESSORIES AND PACKING MATERIALS 24 REPLACEMENT PARTS LIST 24.1. Base Unit 24.2. Handset 24.3. ACCESSORIES AND PACKING MATERIALS 25 FOR SCHEMATIC DIAGRAM 25.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 25.2. Handset (SCHEMATIC DIAGRAM (Handset)) 26 SCHEMATIC DIAGRAM (Base Unit) 26.1. Base Unit 26.2. RF Unit (Base Unit) 27 SCHEMATIC DIAGRAM (Handset) 27.1. Handset 27.2. RF Unit (Handset) 28 CIRCUIT BOARD (Base Unit) 28.1. Component View 28.2. Flow Solder Side View 29 CIRCUIT BOARD (Handset) 29.1. Component View 29.2. Flow Solder Side View
52 53 53 56 58 59 59 59 60 60 61 62 62 63 65 65 66 67 67 68
21 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT) 50 22 CABINET AND ELECTRICAL PARTS LOCATION (HANDET) 51
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1 BATTERY
1.1. Recharge
1.2.
Battery information
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2 BATTERY REPLACEMENT
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
3 LOCATION OF CONTROLS
3.1. Base Unit
3.2.
Handset
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
4 CONNECTION
· USE ONLY WITH Panasonic AC ADAPTOR PQLV16CEZ. · The AC adaptor must remain connected at all times. (It is normal for the adaptor to feel warm during use.) · When more than one unit is used, the units may interfere with each other. To prevent or reduce interference, please leave ample space between the base units.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
4.1.
Adding Another Phone
This unit will not function during a power failue. To connect a standard telephone on the same line, use a telephone T-adaptor.
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5 OPERATIONS
5.1. Making Calls
5.2.
Answering Calls
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
5.3.
Storing Phone Numbers in Memory
5.4.
Storing a Phone Number in the DIRECT Button
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
5.5.
Dialing a Stored Number
5.6.
Dialing a Stored Number in the DIRECT Button
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
5.7.
FLASH Button
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
6 DISASSEMBLY INSTRUCTIONS
Show in Fig. 1 2
To remove. Lower Cabinet Main P.C. Board
Remove. Screws (2.6 × 12).............. ......... (A) × 4 Screws (2.6 × 6)................ ......... (B) × 1 Screws (2.6 × 6)................ ..........(C) × 2 Screws (2.6 × 12).............. ..........(D) × 1 Main P.C. Board.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Show in Fig. 3 4 5
To remove. Rear Cabinet Main P. C. Board
Remove. Battery compartment cover. Screws (2.6 × 12).............. ........(E) × 2 Screw (2.6 × 12).............. ..........(F) × 1 Tape and solder. Main P. C. Board.
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7 TROUBLESHOOTING GUIDE
Cross Reference: Check Power (P.17) Bell Reception (P.18) Check Battery Charge (P.19) Check Link (P.20) Check Handset Transmission (P.22) Check Handset Reception (P.22)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
7.1.
Check Power
Cross Reference: Reset Circuit (Base Unit) (P.40) Power Supply Circuit (P.39)
Note: CPU: IC2
Cross Reference: Charge Circuit (P.41)
Note: CPU: IC2
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.67)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
7.2.
Bell Reception
Cross Reference: Check Link (P.20) Telephone Line Interface (P.41)
Note: CPU: IC2
Cross Reference: Check Link (P.20) *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.67)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
7.3.
Check Battery Charge
Cross Reference: Charge Circuit (P.41) Power Supply Circuit (P.39)
Note: CPU: IC2
Cross Reference: Reset Circuit (Handset) (P.45)
Note: CPU: IC2
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.67)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
7.4.
Check Link
**: Refer to Adjustment (P.24)
Note: CPU: IC2 RF IC: IC1
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.67)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
**: Refer to Adjustment (P.27).
Note: CPU: IC2 RF IC: IC1
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.67) 21
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
7.5.
Check Handset Transmission
Cross Reference: Signal Route (P.44)
7.6.
Check Handset Reception
Cross Reference: Signal Route (P.44) *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.67)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
8 ADJUSTMENTS (BASE UNIT)
If your unit have below symptoms, adjust or confirm each item using remedy column from the table.
Symptom Remedy* The base unit dose not respond to a call from handset. Make adjustments in item (A) The base unit dose not transmit or the transmit frequency is off. Make adjustments in item (B) The transmit frequency is off. Make confirmation in item (C) The transmit power outlet is low, and the operating distance between the base unit and the Make confirmation in item (D) handset is less than normal. The reception sensitivity of base unit is low with noise. Make confirmation in item (E) The transmit level is high or low. Make confirmation in item (F) The reception level is high or low. Make adjustments in item (G) The unit does not link. Make confirmation in item (H)
*: Refer to Adjustment (P.24).
8.1.
Test Mode Flow Chart (Base Unit)
The operation-flow of Test mode and main check items are shown below.
Note: **: Refer to the above table.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
8.2.
How to change the channel
*: Refer to Flow Solder Side View (P.66).
8.3.
Adjustment
Adjustment Items Test Mode Adjustment Point T6 VC1 *Procedure · Confirm so that the reading of the Digital Voltmeter is 1.5V ± 0.5V. · Adjust T6 so that the reading of the Digital Voltmeter is 2.0V ± 0.1V. · Adjust VC1 so that the reading of the frequency counter is 30.175MHz ± 0.1KHz. · Adjust T5 so that the reading of the RF VTVM is over 10dBm. Check or Replace Parts IC1, L10, C26 IC1, DV1, T6 IC1, X1, T6, DV1, C35, C40, VC1 IC1, Q3, Q4, Q5, T5, DPX1 DPX1, T2, CF1, CF2
(A) RX VCO Confirmation (B) TX VCO Adjustment (C) TX Frequency Adjustment
3ch Talk 3ch Talk 3ch Talk
(D) TX Power Adjustment (E) RX Sensitivity Adjustment (2nd IF output) (F) Line Output Level Confirmation (G) Line Input Modulation Confirmation
3ch Talk
T5
3ch Talk
T2
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz). 2. Adjust T2 so that the reading of RF VTVM is the maximum value (more than 20mV) 1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 3KHz). 2. Confirm that the reading of AF VTVM is 80mV ± 20mV (600 load). 1. Input via loop simulator 1.0KHz, 80mV (measured at T-R) signal. 2. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz).
3ch Talk
-
IC1, Q11
3ch Talk
-
IC1, DV1
(H) Noise Squelch Confirmation
3ch Talk
-
3. Confirm so that the reading of FM Deviation Meter is 2.8KHz ± 0.3KHz. 1. Measure the SSG output level when the noise squelch changes from Low IC1, DPX1 to High. 2. Confirm so that the SSG output level is -105dBm ~ -110dBm.
* : The connection of adjustment equipment are as shown in Adjustment Standard (Base Unit) (P.25). SSG Frequency: 39.875 MHz
24
8.4.
Adjustment Standard (Base Unit)
FM Deviation Meter Frequency Counter RF Volt Meter 50 SSG (G) Audio Analyzer Confirmation of VCO voltage (C) DC Volt Meter (A), (B) RX-VCO TX-VCO RF Volt Meter (E)
(D)
T.P ( CH change at test mode)
TXPOWER
TXGND
DC12V or AC adaptor
IC1
AF OSC
Loop SIMULATOR
AF Volt Meter (F)
IC2
Oscilloscope
IC6
(H)
Note: (A) - (H) is refered to ADJUSTMENTS (BASE UNIT) (P.23)
IC3
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
9 ADJUSTMENTS (HANDSET)
If your unit have below symptoms, adjust or confirm each item using remedy column from the table.
Symptom The movement of Battery Low Indicator is wrong. The base unit does not respond to a call from the handset. The base unit does not transmit or the transmit frequency is off. The transmit frequency is off. The transmit power outlet is low, and the operating distance between the base unit and the handset is less than normal. The reception sensitivity of base unit is low with noise. Does not link between the base unit and the handset. The reception level is high or low. The transmit level is high or low. Make Make Make Make Make Make Make Make Make confirmation adjustments adjustments confirmation confirmation confirmation confirmation confirmation adjustments Remedy* in item (A) in item (B) in item (C) in item (D) in item (E) item (F) in item (G) item (H) in item (I)
*: Refer to Adjustment (P.27). Unit condition: 1. Remove the antenna lead wire from P.C Board of the handset. 2. Power Supply: DC 3.9V (DC power supply) 3. Volume: HIGH (When P.C. Board of handset is in test mode, volume condition is medium. Press "LOCATOR" key once.) 4. Speaker Load: 150
CH CH3 TX Frequency 39.875MHz RX Frequency 30.175MHz
9.1.
Test Mode Flow Chart (Handset)
Note: Refet to CIRCUIT BOARD (Handset) (P.67) Signal Route (P.44)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
9.2.
How to change the channel
9.3.
Adjustment
Adjustment Point Check or Replace Parts 1. Set the power supply voltage to DC3.60V, and confirm so that the reading IC1 of oscillosope is High. 2. Set the power supply voltage to DC 3.40V, and confirm so that the reading of oscilloscope is Low. 1. Adjust T6 so that the reading of the Digital Voltmeter is 1.0V ± 0.1V. · Confirm RX VCO voltage so that the reading of the Digital Voltmeter is 2.9V ± 0.5V. · Adjust VC1 so that the reading of the frequency counter is 39.875MHz ± 0.1KHz. · Adjust T5 so that the reading of the RF VTVM (50 load) is 5dBm ± 1dBm. 1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz). Procedure
Adjustment Items Test Mode
(A) Battery Low Confirmation
3ch Talk
(B) TX VCO Voltage (C) RX VCO Confirmation (D) TX Frequency Adjustment (E) TX Power Adjustment (F) RX Sensitivity Adjustment (2nd IF output) (G) Noise Squelch Confirmation (H) Speaker Output Level confirmation
3ch Talk 3ch Talk
T6 -
3ch Talk 3ch Talk 3ch Talk
VC1 T5 T3
3ch Talk
-
2. Adjust T3 so that the reading of RF VTVM is more than 15mV. 1. Measure the SSG output level when the noise squelch changes from Low IC1, DPX1 to High. (modulation frequency 1KHz, dev.3kHz) 2. Confirm so that the SSG output level is -105dBm. 1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 3KHz). 2. Confirm so that SP output level is 120mV ± 30mV. IC1
IC1, X1, T6 IC1, X1, T6 L6, C24 IC1, VC1 DPX1, T5 DPX1, Q5, T5 DPX1, T3,IC1, CF1, CF2
3ch Talk
-
(I) Mic Modulation Factor Confirmation (J) Data Modulation Confirmation
3ch Talk
-
(distortion: less than 7%) (volume High). 1. Apply a MIC signal (1KHz, 2.4mV at 600 load). 2. Confirm so that the reading FM Deviation Meter is 3.1KHz ± 0.4KHz. · Confirm so that the reading of the FM Deviation Meter is 5kHz ± 1kHz.
IC1, DV1
3ch Talk
-
The connections of adjustment equipment are as shown in Adjustment Standard (Handset) (P.28). SSG Frequency: 30.175 MHz
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
9.4.
Adjustment Standard (Handset)
(Component View)
150
AF Volt Meter (H)
IC2
28
47µF
+ AFGenerator
(A) Battery Low Oscilloscope (G) Noise Squelch
Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.26)
(Flow Solder Side View)
SSG 43.820MHz (E) RF Millivolt Meter 50 (D) Frequency Counter FM Deviation Meter (F) RF Volt Meter
Audio (I), (J) Analyzer
TXGND
TXPOWER
TX VCO (B) DC Volt Meter
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
RX VCO (C) DC Volt Meter DC Power Supply
Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.26)
IC1
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10 RF SPECIFICATION
10.1. Base Unit
Item TX Frequency TX Power Line Modulation factor Line Modulation factor (Max.) Data Modulation factor Line Output level Value 30.175 MHz ± 0.1kHz 8mW (3CH) 2.8 kHz~3.4 kHz 4.5 kHz~8.5 kHz 3 kHz~7 kHz 80mV ± 20mV Refer to -.* ADJUSTMENTS (BASE UNIT) (C) ADJUSTMENTS (BASE UNIT) (D) ADJUSTMENTS (BASE UNIT) (G) -- -- -- Remarks at CH3 at CH3
*: Refer to Adjustment (P.24).
10.2. Handset
Item TX Frequency TX Power Value 39.875 MHz ± 0.1kHz 4mW (3CH) Refer to -.** ADJUSTMENTS (HANDSET) (D) ADJUSTMENTS (HANDSET) (E) Remarks at CH3 at CH3 (Antenna soldering point 50 Load) at CH3 at CH3 (MIC terminal 2.4mV Input)
Data Modulation factor MIC Modulation factor SP Output level
4.0 kHz/dev~8.0 kHz/dev 1.5 kHz/dev~0.3 kHz/dev 120mV ± 30mV
ADJUSTMENTS (HANDSET) (J) ADJUSTMENTS (HANDSET) (I) --
**: Refer to Adjustment (P.27).
11 HOW TO CHECK THE HANDSET SPEAKER
1. Prepare the digital voltmeter, and set the selector knob to ohm meter. 2. Put the probes at the speaker terminals as shown below.
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12 FREQUENCY TABLE (MHz)
Channel 1 2 3 4 5 6 7 8 9 10 BASE UNIT Transmit Frequency Receive Frequency 30.0750 39.7750 30.1250 39.8250 30.1750 39.8750 30.2250 39.9250 30.2750 39.9750 30.1000 39.8000 30.1500 39.8500 30.2000 39.9000 30.2500 39.9500 30.3000 40.0000 PORTABLE UNIT Transmit Frequency Receive Frequency 39.7750 30.0750 39.8250 30.1250 39.8750 30.1750 39.9250 30.2250 39.9750 30.2750 39.8000 30.1000 39.8500 30.1500 39.9000 30.2000 39.9500 30.2500 40.0000 30.3000
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13 EXPLANATION OF CPU DATA COMMUNICATION
13.1. STAND-BY -> TALK, TALK -> STAND-BY
*: The channel is changed if the noise interferes with the conversation.
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13.2. Ringing
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13.3. Changing the Channel
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13.4. Ports for transmitting and receiving of data
Handset: transmitting (TX) ... 36 Pin receiving (RX) ... 4 Pin Base Unit: transmitting (TX) ... 17 Pin receiving (RX) ... 10 Pin
13.5. Waveform of DATA used for cordless transmission and reception
The DATA which is transmitted from the Handset to the Base Unit is combination of DATA 0, DATA 1, PSEUD. The DATA which is transmitted from the Base Unit to the Handset is combination of DATA 0, DATA 1, PSEUD.
13.5.1. Handset
13.5.2. Base Unit
· For example (one of part of data)
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14 BLOCK DIAGRAM (BASE UNIT)
H/S
ANTENNA 10.7MHz
RF FILTER
CF1, CF2
455kHz
RX VCO DUPLEXER
DPX1 L10, C26
TELEPHONE LINE INTERFACE RF IC IC1
EXP
17
RF AMP
Q1, T2
MIX 1/2
RF -DATA -CLK -STB
RX LOOP X1 TX LOOP
TEL LINE AMP
Q11, IC3
·· TEL LINE SW RY1 ·· LINE SEIZURE
Q10
DIODE BRIDGE
D2, D3, D4, D5
TEL LINE
PLL OSC
COM
14
VC1
POWER SUPPLY RESET CHARGE
DC 5V
POWER CONTROL
Q2
5V REGULATOR
Q18, Q19
DC IN 12V 150mA (AC Adaptor)
36
RF AMP
Q3,Q4, T5
TX VCO
Q5, T6, DV1
X2
AC DOWN DTC
Q8
VTX
RF RX -DATA DATA -CLK -STB
RESET DTC
Q9
TX DATA
CHARGE CONTROL
Q14, Q17
DC 5V CONTROL LINE AUDIO SIGNAL
LED
Q21, LED1
CPU IC2
CHARGE DTC
Q7
DC 12V
CHARGE TERMINAL
KX-TC1205RUB/W/S/F BLOCK DIAGRAM (BASE UNIT)
15 BLOCK DIAGRAM (HANDSET)
Base
ANTENNA
RF FILTER
CF1, CF2
RX VCO DUPLEXER
DPX1 L6, C24
RF IC IC1
RF AMP
Q1, T3
DC 3.9V EXP SPEAKER REC1 CONTROL LINE AUDIO SIGNAL
MIX 1/2
RF -DATA -CLK -STB
RX LOOP X1
PLL OSC
COM
MIC MC1
TX LOOP
VC1
POWER CONTROL
Q4
DC 3.9V
BATTERY 3.9V
37
RF AMP
Q5, T5
TX VCO
Q6, T6, DV1
X3
DIODE BRIDGE
Q9
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
VTX
RF -DATA -CLK -STB
RX DATA
RESET
Q11
DIODE BRIDGE
D1
CHARGE TERMINAL
TX DATA
CPU IC2
LED
Q8, LED 1-4
CHARGE DTC IC2 PING37
BUZZER
KEY BOARD
Q7, BZ1
KX-TC1205RUB/W/S/F BLOCK DIAGRAM (HANDSET)
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16 CIRCUIT OPERATION
16.1. Outline
Base unit consists of the following ICs as shown in BLOCK DIAGRAM. · CPU:IC2 - Controlling the whole system - Forming/analyzing all data signals (ACK, CMD signal etc.*) - All interfaces (ex: LED, KEY, SP, Mic, LCD, Detector Circuit (Charge/ Power Down) *Refer to EXPLANATION OF CPU DATA COMMUNICATION (P.32). · RF IC:IC1 - PLL Oscillator - Detection - Compress/ Expander - first/ second mixer - Amplifier for transmission and reception · Additionally, - Power Supply Circuit - Reset Circuit - Charge Circuit - Telephone Line Interface Circuit Handset consist of the following ICs as shown in BLOCK DIAGRAM. · CPU: IC2 - All data signals (forming/analyzing ACK or CMD signal*) - All interfaces (ex; LED, Key, Buzzer, Detector Circuit, Charge, Battery Low) - RAM for keeping the data (CH Number, ID Code, etc.) · RF IC:IC1 - PLL Oscillator - Detector - Compress/Expander - first, second mixer - Amplifier for transmission and reception *Refer to EXPLANATION OF CPU DATA COMMUNICATION (P.32).
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16.2. Power Supply Circuit
The power supply to the CPU (Digital, Analog) and RF IC from AC Adaptor (+12V) is shown in the diagram below. The base unit power supply is DC12V. The handset´s power is supplied from 3.6V battery (Nickel-Cadmium battery) which is installed in the handset. Power supply for transmitter is turned on by a press of "Talk" key on the handset. During the stand-by mode, the unit stops transmitting but receive thhe signal. Also during on-hook condition (the handset is placed on the base unit), backup power for memory of the last dialed number is supplied through the battery (3.6V nickel-cadmium in the handset). The memory of this unit is not backed up by the curreent from the telephone line. The base unit DC power supply is regulated by Q18, the CPU power is regulated by Q19. The Q8, detects AC Adaptor powerfailure and maintains the unit cecutiry cord;
Fig. 1
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16.3. Reset Circuit (Base Unit)
After power supply from AC adaptor, the VREG is input for making reset signal. Refer to the below waveform.
Fig. 2
Fig. 3
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16.4. Charge Circuit
Circuit Operation: When charging the handset on the base unit, the charge current is as follows; DC (JK2) L8 D6 L7 CHG+(Base) [CHG+(Handset) L4 Q9 BATT(1)....Battery....BATT(2) L5 CHG-(Handset)] CHG+(Base) L5, In this way, the CPU on both unit detects the fact that the battery is charged. The charge current is controlled by switching Q701 of Handset. The battery is charged in normal mode for 10 hours and then in trickle mode.
16.5. Telephone Line Interface
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, Q103 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 volltage is transferred as follows. JK1 (3): T L6 R144 IC3D (12,13 14) C97 R148 Q20 IC2 (24) [BELL] JK1 (2): R L4 R120 R152 When the CPU (DSP) detects a ring signal and press the TALK Key on the handset. Q6 turns on and then RY1 turns on, thus providing an off-hook condition (active DC current flow through the circuit) and the following singal flow is for the loop current. T R160 L4 RY1 R107 T7 R116 D5 L6 R161 R [OFF HOOK] ON HOOK Circuit: Q6 is open, RY1 disconnected as to cut the DC loop current and to cut the voice signal. The unit is consequently in an on-hook condition. Pulse Dial Circuit: DSP (Relay) turns RY1 ON/OFF to make the pulse dialing via Q6. Make/Break ratio when dialing with the Handset: 40%:60% 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 Q11 is canceled by the cancellor circuit of AGC.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16.6. Transmitter/Receiver
Base Unit and Handset are mainly consists of RF(Radio Frequency) IC and CPU. Base Unit and Handset transmit/receive voice signal and data signal through the antenna on carrier frequency. Signal Pass : *Refer to CDL TX/RX in Signal Route (P.44).
16.6.1. Base to Handset
Circuit Operation: The voice signal input from the TEL LINE interface goes to RF IC as shown in BLOCK DIAGRAM (BASE UNIT) (P.36). In the talk mode (off-hook) condition, the telephone line voice signal passes through D2, D3, D4, D5, RY1 (Relay), R107 and T7. The other party´s voice signal is coupled with T7 and amplified by Q11 and led to IC3-B (OP Amplifier device). And the signal goes through the compressor of RF IC, it is output to transmitter circuit. The signal of the data sent to the handset is applied in the anode of the variable capacitor diode (VARICAP : DV1). The capacitor of VARICAP is changing in accordance with the voice signal from telephone line interface or TX DATA signal from CPU. Therefore, the carrier frequency which is generated by TXVCO will be changing, and Frequency modulated RF signal is generated and amplified by RF AMP(Q3, Q4, T5). It pass through the Duplexer DPX1 and radiated from Antenna. The signal is transmitted from the base unit and received by the handset antenna and amplified by RF amplifier (Q1) through DPX1 as shown in BLOCK DIAGRAM (HANDSET) (P.37). And then it is converted to 10.7 MHz and 450 KHz Intermediate frequency by RF IC and related components. The demodulated audio signal is output from RF IC (DET OUT) and passed through "Expander" process to reduce noise, then voice signal amplified by "Receiver amplifier" is output to receiver (REC1). The receiver loudness is adjustable using "LOUD" key on the handset. Q2 and Q3 control the volume. When CPU (VOL1) becomes low, the volume becomes "MID", while CPU (VOL 1,2) becomes low, the volume becomes "HIGH". TX data (to Handset) CPU (VTX) becomes low to turn on the transmission power transistor Q2, and CPU (TX-data) sends data signal. It is FMmodulated by TXVCO and driven by RF AMP, then transmitted to the handset.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16.6.2. Handset to Base
Circuit Operation: The voice signal from the handset user is picked up by the microphone (MC1), voice signal passes through "Compressor" process to reduce noise as shown in BLOCK DIAGRAM (HANDSET) (P.37). And the voice is FM-modulated by VARICAP (DV1). The carrier frequency is generated by TX VCO. The transmitter power transistor Q4 is turned on/off by CPU (VTX). The carrier signal is amplified by RF AMP and sent to the handset duplexer and antenna. The signal of 49MHz band (49.670~49.99MHz) which is input from ANT is filtered at DPX1 as shown in BLOCK DIAGRAM (BASE UNIT) (P.36), then it is input to RF IC. The signal input to RF IC is converted through Mixer inside of RF IC, RF filter (CF1, CF2) and Expander. The signal is transmitted from the handset and received by the base unit antenna and amplified by RF amplifier Q1, then it is converted to10.7 MHz and 450 KHz Intermediate by RF IC. The demodulated audio signal is output from RF IC (DET OUT) and passed through "Expander" process to reduce noise, then voice signal is led to LINE AMP. The signal is passed through TELEPHONE INTERFACE and Tel-line. RX data (from Handset): The data signal from handset (ex: Talk, ACK, COM) is also included in 49 MHz band same as the voice data. After second if filter, the data signal is made square shape by data limiting AMP of the RF IC. RX data is output to CPU (RX Data).
16.6.3. RF signal operation/control and PLL operation (RF UNIT)
Base unit radio frequency signal received by antenna passes through duplexer (DPX1). RF signal is amplified by RF AMP. RF signal received from RF IC is mixed with RX local frequency at Mixer to generate 10.7 MHz wide band IF. The reference frequency is generated by X1 11.15 MHz crystal. VC1 is the reference frequency for adjustment. The 10.7 MHz is mixed with reference and 450KHz narrow band IF is generated. The demodulation audio signal is adjusted to the maximum at T1. RF IC is controlled by CPU (RF_STB, DATA, CLK). The RX local frequency is generated by RXVCO.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
16.7. Signal Route
Each signal route is as follows.
44
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
17 CIRCUIT OPERATION (HANDSET)
17.1. Reset Circuit (Handset)
The power of handset is supplied by battery. Whenever the battery is recharged or inserted, the impulse at CHG+ becomes Reset signal through Q11, and sent to CPU.
Fig. 4
Fig. 5
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
17.2. Battery Low / Power Down Detector
Circuit Operation: "Battery Low" and "Power Down" are detected by RF IC which check the voltage from battery. Shortly, every detected blocks are inside of RF IC. The detected voltage is as follows; · Battery Low Battery voltage : V(Batt) < 3.57V The CPU detects this level and "Recharge battery" LED starts flashing. · Power Down Battery voltage : V(Batt) < 3.3V The output of RF IC (P-DOWN) becomes low level, then CPU stops working to keep the data (CH number, ID Code, etc.)
Fig. 6
46
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
18 CPU DATA (Base Unit)
18.1. IC2
47
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
19 CPU DATA (Handset)
19.1. IC2
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
20 HOW TO REPLACE FLAT PACKAGE IC
20.1. Preparation
· SOLDER Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR19RMA · Soldering iron Recommended power consumption will be between 30 W to 40 W. Temperature of Copper Rod 662 ± 50°F (350 ± 10°C) (An expert may handle between 60 W to 80 W iron, but beginner might damage foil by overheating.) · Flux HI115 Specific gravity 0.863. (Original flux will be replaced daily.)
20.3. Modification Procedure of Bridge
1. Re-solder slightly on bridged portion. 2. Remove remained solder along pins employing soldering iron as shown in below figure.
20.2. Procedure
1. Temporary fix FLAT PACKAGE IC by soldering on two marked 2 pins.
*Most important matter is accurate setting of IC to the corresponding soldering foil. 2. Apply flux for all pins of FLAT PACKAGE IC.
3. Solder employing specified solder to direction of arrow, as sliding the soldering iron.
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
21 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
50
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
22 CABINET AND ELECTRICAL PARTS LOCATION (HANDET)
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
23 ACCESSORIES AND PACKING MATERIALS
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
24 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. 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
Ref. No. 5 5 6 6 6 6 7 7 7 8 8 8 8 9 10 10
Part No. PQBC10349Z3 PQBC10349Z2 PQKE10335Z1 PQKE10335Z5 PQKE10335Z4 PQKE10335Z2 PQKF10534Y1 PQKF10534Y3 PQKF10534Y2 PQKM10509W1 PQKM10509W4 PQKM10509W3 PQKM10509W2 PQSA10104Y XXLABALACE1 XXLASILUER1
Part Name & Description PUSH BUTTON (for KXTC1205RUW) PUSH BUTTON (for KXTC1205RUS/KX-TC1205RUF) HOOK LEVER (for KX-TC1205RUB) HOOK LEVER (for KX-TC1205RUW) HOOK LEVER (for KX-TC1205RUS) HOOK LEVER (for KX-TC1205RUF) LOWER CABINET (for KXTC1205RUB/KX-TC1205RUF) LOWER CABINET (for KXTC1205RUW) LOWER CABINET (for KXTC1205RUS) UPPER CABINET (for KXTC1205RUB) UPPER CABINET (for KXTC1205RUW) UPPER CABINET (for KXTC1205RUS) UPPER CABINET (for KXTC1205RUF) ANTENNA HOOK LABEL (for KX-TC1205RUB) HOOK LABEL (for KXTC1205RUW/KX-TC1205RUS/KXTC1205RUF)
Remarks S S S S S S S S S S S S S
24.1.2. MAIN P.C.BOARD PARTS
Ref. No. PCB1 IC1 IC2 IC3 IC4 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q14 Q16 Q17 Q18 Q19 Q20 Q21 Part No. PQWPC1205RUH SA133122409 SA138740577 SA110032403 AN6183S BB230024104 SB010390608 SB110390405 SB110390405 SB110390405 SB110390405 SB110390405 SB110390405 SB110390405 BB010009408 SB110390405 SB010390608 SB110390405 SB110390405 BB1G0390403 BB1G0390403 SB110390405 SB110390405 SC15L414808 BC2G0400400 BC2G0400400 BC2G0400400 BC2G0400400 BC2G0400400 SC15L414808 SC15L414808 BC6K0025101 BC050474801 BC050474801 SC4555C4V71 SC4555C4V71 BC2G0400400 BC4579C2702 BC4579C5V65 SC4555C1506 Part Name & Description MAIN P.C.BOARD ASS´Y (RTL) (ICS) 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) 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) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) Remarks
24.1. Base Unit
24.1.1. CABINET AND ELECTRICAL PARTS
Ref. No. 1 2 3 3 3 3 4 5 Part No. PQJT10180Z PQHR10882Z PQGT15032Z PQGT14900Z PQGT14901Z PQGT14902Z PQQT22474Z PQBC10349Z1 Part Name & Description Remarks CHARGE TERMINAL LED LENS NAME LABEL (for KX-TC1205RUB) NAME LABEL (for KX-TC1205RUW) NAME LABEL (for KX-TC1205RUS) NAME LABEL (for KX-TC1205RUF) CHARGE LABEL PUSH BUTTON (for KXS TC1205RUB)
D1 D2 D3 D4 D5 D6 D9 D10 DV1 ZD1 ZD2 ZD3 ZD5 ZD6 ZD7 ZD8 ZD10
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KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Ref. No. ZD11 ZNR1 L1 L4 L5 L6 L7 L10 L12 JK1 JK2 CF1 CF2 DPX1 X1 X2 T1 T2 T5 T6 T7 D7 IC5 LED1 RY1 SW1 VC1 R1 R2 R3 R4 R5 R6 R7 R8 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R29 R30 R31 R32 R33 R35 R36 R37 R38 R40 R41 R42 R43
Part No. SV110201203 VA107D271K1 PQLQZK2R2J PQLQZK120J PQLQZK120J PQLQZK120J PQLQZK120J PQLQZK120J SH4Y0750K46 DC72P120018 DC71P120023 BDFL107MA53 BDFL0455E02 BDFL0083004 BD1R1024504 BDRR0800005 CLIP1200053 CLIP1200100 CLIP1200096 CLIP1200142 DG0P1200035 PQVDDSP272M PQVIPC817K SC5E0192115 DCR000105H7 DETP1200017 CR00020RRT5 ERJ3GEYJ470 ERJ3GEYJ330 ERJ3GEYJ153 ERJ3GEYJ822 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ334 ERJ3GEYJ103 ERJ3GEYJ393 ERJ3GEYJ102 ERJ3GEYJ101 ERJ3GEYJ623 ERJ3GEYJ103 ERJ3GEYJ562 ERJ3GEYJ153 ERJ3GEY0R00 ERJ3GEYJ472 ERJ3GEYJ124 ERJ3GEYJ475 ERJ3GEYJ473 ERJ3GEYJ472 ERJ3GEYJ563 ERJ3GEYJ103 ERJ3GEYJ683 ERJ3GEYJ473 PQ4R10XJ560 ERJ3GEY0R00 ERJ3GEYJ104 ERJ3GEYJ473 ERJ3GEYJ105 ERJ3GEY0R00 ERJ3GEYJ101 ERJ3GEYJ224 ERJ3GEYJ101 ERJ3GEYJ823 ERJ3GEYJ223 ERJ3GEYJ473 ERJ3GEYJ103 ERJ3GEYJ393
Part Name & Description DIODE(SI) DIODE(SI) (COILS) COIL COIL COIL COIL COIL COIL COIL (CONNRCTORS) JACK/SOCKET JACK/SOCKET (CERAMIC FILTERS) CERAMIC FILTER CERAMIC FILTER CERAMIC FILTER (CRYSTAL OSCILLATORS) CRYSTAL OSCILLATOR CRYSTAL OSCILLATOR (TRANSFORMERS) TRANSFORMER TRANSFORMER TRANSFORMER TRANSFORMER TRANSFORMER (OTHERS) VARISTOR PHOTO ELECTRIC TRANSDUCER LED RELAY PUSH SWITCH TRIMMER CAPACITOR (RESISTORS) 47 33 15k 8.2k 10k 10k 330k 10k 39k 1k 100 62k 10k 5.6k 15k 0 4.7k 120k 4.7M 47k 4.7k 56k 10k 68k 47k 56 0 100k 47k 1M 0 100 220k 100 82k 22k 47k 10k 39k
Remarks
S
Ref. No. R44 R45 R46 R48 R49 R50 R51 R52 R53 R55 R56 R57 R58 R59 R60 R61 R63 R64 R68 R74 R75 R77 R78 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R95 R96 R97 R98 R99 R100 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R122 R123 R126 R129 R131 R132 R133 R134 R135 R139 R141
Part No. ERJ3GEYJ104 ERJ3GEYJ334 ERJ3GEYJ222 ERJ3GEYJ223 ERJ3GEYJ473 ERJ3GEYJ822 ERJ3GEYJ182 ERJ3GEYJ225 ERJ3GEYJ153 ERJ3GEYJ681 ERJ3GEYJ222 ERJ3GEYJ224 ERJ3GEYJ511 ERJ3GEYJ104 ERJ3GEYJ223 ERJ3GEYJ224 ERJ3GEYJ104 ERDS2TJ103 ERJ3GEYJ104 ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ203 ERJ3GEYJ393 ERJ3GEYJ823 ERJ3GEYJ222 ERJ3GEYJ164 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ473 ERJ3GEYJ102 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ304 ERJ3GEYJ154 ERJ3GEYJ103 ERJ3GEYJ104 ERJ3GEYJ392 ERJ3GEYJ274 ERJ3GEYJ822 ERJ3GEYJ123 ERJ3GEYJ823 ERJ3GEYJ104 ERJ3GEYJ223 ERJ3GEYJ472 ERJ3GEYJ472 ERDS2TJ220 CQ63110RJ21 ERJ3GEYJ472 ERJ3GEYJ334 ERJ3GEYJ104 ERJ3GEYJ471 ERJ3GEYJ102 ERDST1TJ330 ERJ3GEYJ223 ERJ3GEYJ563 ERJ3GEY0R00 ERJ3GEYJ394 ERDS1TJ150 ERJ3GEYJ823 ERJ3GEY0R00 ERJ3GEYJ132 ERJ3GEYJ153 ERJ3GEYJ621 ERJ3GEYJ682 ERJ3GEYJ104 ERJ3GEYJ222 ERJ3GEYJ820 ERJ3GEY0R00 ERJ3GEYJ152 ERJ3GEYJ106 ERJ3GEYJ512
Part Name & Description 100k 330k 2.2k 22k 47k 8.2k 1.8k 2.2M 15k 680 2.2k 220k 510 100k 22k 220k 100k 10k 100k 0 10k 20k 39k 82k 2.2k 160k 10k 10k 10k 10k 47k 1k 10k 10k 300k 150k 10k 100k 3.9k 270k 8.2k 12k 82k 100k 22k 4.7k 4.7k 22 110 4.7k 330k 100k 470 1k 33 22k 56k 0 390k 15 82k 0 1.3k 15k 620 6.8k 100k 2.2k 82 0 1.5k 10M 5.1k
Remarks
54
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Ref. No. R142 R143 R144 R145 R146 R148 R149 R150 R151 R152 R153 R154 R155 R156 R159 R160 R161 R166 R167 R170 R171 R172 R173 R174 R176 R180 R181 R186 R187 R188 R189 R190 R191 R192 R193 R194 C1 C2 C4 C6 C7 C8 C9 C10 C11 C12 C15 C16 C17 C18 C19 C20 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41
Part No. ERDS2TJ220 ERJ3GEYJ514 ERDS2TJ206 ERJ3GEYJ102 ERJ3GEYJ153 ERJ3GEYJ103 ERJ3GEYJ182 ERJ3GEYJ514 ERDST1TJ682 ERDS2TJ206 ERJ3GEYJ105 ERJ3GEY0R00 ERJ3GEYJ470 ERJ3GEYJ470 ERJ3GEYJ104 PQ4R10XJ000 PQ4R10XJ000 ERJ3GEYJ470 ERJ3GEYJ103 ERJ3GEYJ102 ERJ3GEYJ102 ERDS2TJ223 ERDS2TJ102 ERDS2TJ102 ERJ3GEY0R00 ERJ3GEYJ563 ERJ3GEYJ330 ERJ3GEYJ472 ERJ3GEYJ273 ERJ3GEYJ103 ERJ3GEYJ223 ERJ3GEYJ103 ERJ3GEYJ683 ERJ3GEYJ124 ERJ3GEYJ104 ERJ3GEY0R00 ECEA1EK470 ECUV1H473MDV ECUV1H103KBV ECUV1C104ZFV ECUV1H102KBV ECUV1C104ZFV ECUV1H471JCV ECUV1H471JCV ECUV1H473MDV ECUV1H103KBV ECEA1HU2R2 ECUV1H270JCV ECEA1AKA101 ECUV1C473KBV ECUV1H102KBV ECEA1HKA2R2 ECUV1H103KBV ECUV1H103KBV ECUV1E223ZFV ECUV1H822KBV ECUV1H070DCV ECUV1H103KBV ECUV1C104KBV ECUV1C104KBV ECEA1HKA2R2 ECUV1H103KBV ECEA1HU2R2 ECUV1H101JCV ECUV1H471JCV ECUV1H180JCV ECUV1H101JCV ECUV1H151JCV ECEA1HKS010 ECUV1H103KBV ECUV1H270JCV ECEA1EK470
Part Name & Description 22 510k 20M 1k 15k 10k 1.8k 510k 6.8k 20M 1M 0 47 47 100k 0 0 47 10k 1k 1k 22k 1k 1k 0 56k 33 4.7k 27k 10k 22k 10k 68k 120k 100k 0 (CAPACITORS) 47 0.047 0.01 0.1 0.001 0.1 470p 470p 0.047 0.01 2.2 27p 100 0.047 0.001 2.2 0.01 0.01 0.022 0.0082 7p 0.01 0.1 0.1 2.2 0.01 2.2 100p 470p 18p 100p 150p 1 0.01 27p 47
Remarks
S S
S S
S S
S S
S
S S S
Ref. No. C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C85 C86 C88 C90 C92 C93 C94 C95 C96 C97 C98 C99 C100 C101 C102 C103 C104 C104 C105 C106 C107 C108 C109 C110 C111 C121 C123 C124 C125 C126 C127 C128
Part No. ECEA1HU2R2 ECUV1C104ZFV ECUV1A105ZFV ECUV1H682KBV ECUV1H102KBV ECUV1H103KBV ECUV1H223KBV ECUV1H103KBV ECEA1HU220 ECUV1H103KBV ECUV1H223KBV ECUV1H120JCV ECUV1H020CCV ECUV1H103KBV ECUV1H180JCV ECUV1H390JCV ECUV1H682KBV ECUV1H390JCV ECUV1H180JCV ECUV1C104ZFV ECUV1H390JCV ECUV1H103KBV ECUV1C104ZFV ECUV1H220JCV ECEA1AU101 ECUV1H220JCV ECEA1HKAR47 ECUV1H271JCV ECUV1H223KBV ECUV1C104ZFV ECUV1H223KBV ECUV1C104ZFV ECUV1C104ZFV ECUV1H223KBV CATZ681KC68 ECUV1H151JCV ECEA1AU471 ECUV1C104ZFV CATZ681KC68 CJB21004K00 ECUV1C104ZFV ECUV1C683KBV ECUV1H103KBV ECUV1A105ZFV ECUV1C224KBV ECUV1C104KBV ECUV1H562KBV ECEA1CK101 CB114714205 ECUV1H103KBV ECEA1HKA4R7 ECEA1EU221 ECUV1H103KBV CJB21004K00 ECUV1H562KBV ECEA1EU221 ECEA1AU470 ECUV1H390JCV ECFD1C104KD ECEA1CKA100 ECUV1A105ZFV ECUV1C104ZFV ECUV1C104KBV ECUV1H682KBV ECUV1H470JCV ECUV1H103KBV ECUV1H103KBV ECUV1C474ZFV ECUV1C224KBV ECUV1H100DCV ECUV1C224KBV ECEA1EK470 ECUV1C104KBV
Part Name & Description 2.2 0.1 1 0.0068 0.001 0.01 0.022 0.01 22 0.01 0.022 12p 2p 0.01 18p 39p 0.0068 39p 18p 0.1 39p 0.01 0.1 22p 100 22p 0.47 270p 0.022 0.1 0.022 0.1 0.1 0.022 680p 150p 470 0.1 680p 1 0.1 0.068 0.01 1 0.22 0.1 0.0056 100 470 0.01 4.7 220 0.01 1 0.0056 220 47 39p 104 10 1 0.1 0.1 0.0068 47p 0.01 0.01 0.47 0.22 10p 0.22 47 0.1
Remarks
S S S S S S
S
S
S S
S
S
S S
S
S S
S S
55
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Ref. No. C129 C130 C131 C132 C133
Part No. ECUV1C104ZFV ECEA1AKA101 ECUV1C104KBV ECUV1C104KBV ECUV1H390JCV 0.1 100 0.1 0.1 39p
Part Name & Description
Remarks
Ref. No. Q7 Q8 Q9 Q11 D1 D2 D3 DV1 ZD1 ZD3
Part No. SB010390608 SB110390405 SB110390405 SB110390405 SC15L414808 SC15L414808 SC15L414808 BC6K0025101 BC4579C1005 SC455C5V601 SC5E0192115 SC5E0192115 SC5E0192115 SC5E0192115 SC5E0192115 SC5E0192123 PQLQZKR68J PQLQZM120K PQLQZM120K PQLQZK120J PQLQZK120J PQLQZK1R8J SH590121N75 BDFL107MA53 BDFL0455E02 BDFL0083012 BD5R1024501 BD8R3276805 BD1R0399202 CLIP1200053 CLIP1200070 CLIP1200061 CLIP1200088 CK15HC12G10 CGAP1200019 PQJT10183Z PQJP2D13Z CR00020RRT5 ERJ3GEYJ331 ERJ3GEYJ153 ERJ3GEYJ682 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ224 ERJ3GEYJ823 ERJ3GEYJ823 ERJ3GEYJ562 ERJ3GEYJ224 ERJ3GEYJ123 ERJ3GEYJ153 ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ512 ERJ3GEYJ103 ERJ3GEYJ472 ERJ3GEYJ182 ERJ3GEYJ823 ERJ3GEYJ472 ERJ3GEYJ473 ERJ3GEYJ472 ERJ3GEYJ563 ERJ3GEYJ103 ERJ3GEYJ124 ERJ3GEYJ682 ERJ3GEY0R00
Part Name & Description TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) (DIODES) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) (LEDS) LED LED LED LED LED LED (COILS) COIL COIL COIL COIL COIL COIL COIL (CERAMIC FILTERS) CERAMIC FILTER CERAMIC FILTER CERAMIC FILTER (CRYSTAL OSCILLATORS) CRYSTAL OSCILLATOR CRYSTAL OSCILLATOR CRYSTAL OSCILLATOR (TRANSFORMERS) TRANSFORMER TRANSFORMER TRANSFORMER TRANSFORMER (OTHERS) RINGER MICROPHONE CHARGE CONTACT CONNECTOR TRIMMER CAPACITOR (RESISTORS) 330 15k 6.8k 10k 10k 220k 82k 82k 5.6k 220k 12k 15k 0 10k 5.1k 10k 4.7k 1.8k 82k 4.7k 47k 4.7k 56k 10k 120k 6.8k 0
Remarks
24.2. Handset
24.2.1. CABINET AND ELECTRICAL PARTS
Ref. No. 101 102 102 102 102 103 103 103 103 104 104 104 104 105 105 105 105 106 106 107 107 107 108 109 110 111 112 113 114 Part No. PQJT10182Z PQGT15033Z PQGT14903Z PQGT14904Z PQGT14905Z PQKF10535Y1 PQKF10535Y5 PQKF10535Y4 PQKF10535Y2 PQKK10124Z1 PQKK10124Z5 PQKK10124Z4 PQKK10124Z2 PQKM10510W1 PQKM10510W5 PQKM10510W4 PQKM10510W2 PQSA10084U PQSA10084V PQSX10191Z PQSX10191V PQSX10191W PQXA36ASVC FH1T1200011 CG2P1200012 FE4T1200019 FH2T1200012 PQHR10896Z FE4T1200027 Part Name & Description CHARGE TERMINAL NAME LABEL (for KX-TC1205RUB) NAME LABEL (for KX-TC1205RUW) NAME LABEL (for KX-TC1205RUS) NAME LABEL (for KX-TC1205RUF) REAR CABINET (for KXTC1205RUB) REAR CABINET (for KXTC1205RUW) REAR CABINET (for KXTC1205RUS) REAR CABINET (for KXTC1205RUF) BATTERY COVER (for KXTC1205RUB) BATTERY COVER (for KXTC1205RUW) BATTERY COVER (for KXTC1205RUS) BATTERY COVER (for KXTC1205RUF) FRONT CABINET (for KXTC1205RUB) FRONT CABINET (for KXTC1205RUW) FRONT CABINET (for KXTC1205RUS) FRONT CABINET (for KXTC1205RUF) ANTENNA (for KX-TC1205RUB/KXTC1205RUF) ANTENNA (for KX-TC1205RUW/KXTC1205RUS) KEYBOARD SWITCH (for KXTC1205RUB/KX-TC1205RUF) KEYBOARD SWITCH (for KXTC1205RUW) KEYBOARD SWITCH (for KXTC1205RUS) BATTERY CUSHION, URETHANE FORM SPEAKER SP NET BUZZER SHEET LIGHT PIPE MIC NET Remarks
LED1 LED2 LED3 LED4 LED5 LED6 L1 L2 L3 L4 L5 L6 L7 CF1 CF2 DPX1 X1 X2 X3 T1 T3 T5 T6 E101 E102 E103 BATT1 VC1 R1 R2 R3 R5 R6 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R28 R29 R30
S S S S S S S S S S S S
24.2.2. MAIN P.C.BOARD PARTS
Ref. No. PCB100 IC1 IC2 Q1 Q2 Q3 Q4 Q5 Q6 Part No. PQWPC1205RUR SA133122409 SA138780731 SB110390405 SB110390405 SB110390405 SB010390608 SB110390405 SB110390405 Part Name & Description MAIN P.C.BOARD ASS´Y (RTL) (ICS) IC IC (TRANSISTORS) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) Remarks
56
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Ref. No. R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R72 R74 R75 R76 R77 R78 R79 R81 R82 R83 R84 R85 R86 R87 R91 R93 R94 R95 R96 R97 R98 R99 R101 R103 R105 R106 R107 R108 R109 R110 R111 R112 C1 C2 C3
Part No. ERJ3GEYJ224 ERJ3GEYJ473 ERJ3GEYJ202 ERJ3GEYJ102 ERJ3GEY0R00 ERJ3GEYJ224 ERJ3GEYJ330 ERJ3GEYJ683 ERJ3GEYJ223 ERJ3GEYJ104 ERJ3GEYJ393 ERJ3GEYJ104 ERJ3GEYJ434 ERJ3GEYJ222 ERJ3GEYJ223 ERJ3GEYJ473 ERJ3GEYJ822 ERJ3GEYJ272 ERJ3GEYJ681 ERJ3GEYJ820 ERJ3GEYJ104 ERJ3GEYJ390 ERJ3GEYJ222 ERJ3GEYJ332 ERJ3GEYJ470 ERJ3GEYJ222 ERJ3GEYJ222 ERJ3GEYJ331 ERJ3GEYJ222 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ331 ERJ3GEYJ222 ERJ3GEYJ222 ERJ3GEYJ103 ERJ3GEYJ222 ERJ3GEYJ222 ERJ3GEYJ105 ERJ3GEYJ104 ERJ3GEYJ104 ERJ3GEYJ104 ERJ3GEYJ103 ERJ3GEYJ104 ERJ3GEYJ105 ERJ3GEYJ105 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEYJ105 ERJ3GEYJ102 ERJ3GEYJ104 ERJ3GEYJ104 ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ334 ERJ3GEYJ393 ERJ3GEY0R00 ERJ3GEYJ104 ERJ3GEYJ475 ERJ3GEYJ472 ERJ3GEY0R00 ERJ3GEYJ105 ERJ3GEYJ103 ERJ3GEYJ151 ERJ3GEYJ222 ERJ3GEYJ102 ERJ3GEYJ102 ERJ3GEYJ102 ERJ3GEYJ102 ERJ3GEYJ102 ECEA1EK470 ECUV1H473MDV ECUV1H390JCV
Part Name & Description 220k 47k 2k 1k 0 220k 33 68k 22k 100k 39k 100k 430k 2.2k 22k 47k 8.2k 2.7k 680 82 100k 39 2.2k 3.3k 47 2.2k 2.2k 330 2.2k 10k 10k 330 2.2k 2.2k 10k 2.2k 2.2k 1M 100k 100k 100k 10k 100k 1M 1M 0 0 1M 1k 100k 100k 0 10k 330k 39k 0 100k 4.7M 4.7k 0 1M 10k 150 2.2k 1k 1k 1k 1k 1k (CAPACITORS) 47 0.047 39p
Remarks
S S
Ref. No. C4 C5 C6 C7 C8 C9 C12 C13 C14 C15 C16 C17 C18 C21 C22 C23 C24 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C84 C85 C86 C88
Part No. ECUV1H270JCV ECUV1C104ZFV ECUV1H102KBV ECUV1C104ZFV ECUV1H473MDV ECUV1H103KBV ECEA1HKA2R2 ECUV1H270JCV ECUV1H103KBV ECEA1CKA100 ECUV1C473KBV ECUV1H102KBV ECEA1HKA2R2 ECUV1H223KBV ECUV1H390JCV ECUV1H102KBV ECUV1H220JCV ECUV1H103KBV ECUV1C104KBV ECUV1H682KBV ECEA1HKA2R2 ECUV1C104KBV ECUV1H103KBV ECUV1C104KBV ECUV1C104KBV ECUV1H101JCV ECUV1H681JCV ECUV1H180JCV ECEA1HKA010E ECUV1H101JCV ECUV1H151JCV ECUV1H103KBV ECUV1H220JCV ECEA1EK470 ECEA1HKA2R2 ECUV1C105ZFV ECUV1C683KBV ECUV1H682KBV ECEA1EK470 ECUV1H223KBV ECUV1H103KBV ECEA1CKA100 ECUV1H103KBV ECUV1H223KBV ECUV1H100DCV ECUV1H103KBV ECUV1H010CCV ECUV1H150JCV ECUV1H103KBV ECUV1H270JCV ECUV1H270JCV ECUV1C104ZFV ECUV1H560JCV ECEA1CK101 ECUV1H103KBV ECUV1H150JCV ECUV1H150JCV ECUV1C104ZFV ECUV1H330JCV ECUV1H330JCV ECUV1C104ZFV ECUV1C104ZFV ECUV1H473MDV ECUV1H103KBV ECUV1H471JCV ECUV1H471JCV ECUV1H103KBV ECUV1H103KBV ECUV1H103KBV ECUV1C104ZFV ECUV1C105ZFV ECUV1C104ZFV ECUV1C104ZFV
Part Name & Description 27p 0.1 0.001 0.1 0.047 0.01 2.2 27p 0.01 10 0.047 0.001 2.2 0.022 39p 0.001 22p 0.01 0.1 0.0068 2.2 0.1 0.01 0.1 0.1 100p 680p 18p 1 100p 150p 0.01 22p 47 2.2 1 0.068 0.0068 47 0.022 0.01 10 0.01 0.022 10p 0.01 1p 15p 0.01 27p 27p 0.1 56p 100 0.01 15p 15p 0.1 33p 33p 0.1 0.1 0.047 0.01 470p 470p 0.01 0.01 0.01 0.1 1 0.1 0.1
Remarks
S
S
S S
S S S S S S S
S S
S
57
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
Ref. No. R102
Part No. ECUV1H333KBV
Part Name & Description 0.033
Remarks S
24.3. ACCESSORIES AND PACKING MATERIALS
Ref. No. A1 A2 A3 A4 P1 P2 P3 P4 Part No. PQJA10075Z PQLV16CEZ PQQX13178Z PQQW12509Z PQPP10090Z PQPP10091Z PQPP10092Z PQPK13522Z Part Name & Description TEL CORD AC ADAPTOR INSTRUCTION BOOK LEAFLET POLY BAG (for Base Unit) POLY BAG (for Handset) POLY BAG GIFT BOX Remarks
58
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
25 FOR SCHEMATIC DIAGRAM
25.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit))
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
Important Safety Notice: Components identified by mark have special characteristics important for safety. When replacing any of these components, use only the manufacturer´s specified parts.
25.2. Handset (SCHEMATIC DIAGRAM (Handset))
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
59
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
26 SCHEMATIC DIAGRAM (Base Unit)
26.1. Base Unit
VREG
8MHz
C63 103 C0603 R57 220K R0603 R58 510 R0603 R59 100K R0603 R60 22K R0603 C64 104 C0603 R159 100K R0603 Q21 SOT-23 R167 10K R0603 CHAG-CNTL R76 NA R0603 SW1 PAGE SW2P RINGDET R80 R82 R84 PMUTE Q7 SOT-23 Q8 SOT-23 R97 8K2 R0603 RF-CLK R91 R0603 150K R171 R98 12K R0603 1K R0603 R92 10K R0603 R87 1K R0603 R89 2K2 R0603 10K R0603 10K R0603 10K R0603
1Vp-p
L11 JUMP 4MM VCPU
LED1 CHARGE LED 19-21VGC/ TR8 GREEN
R158 NA R0603
C104 104 C0603
R61 220K R0603
R62 NA R0603
R63 100K R0603
C65 22P C0603 R74 0 R0603
R153 1M R0603 X2
C66 100uF/10V EC10/5+ R68 100K R0603 C67 22P C0603
R64 10K 1/4W R0603
+5V
VCC 28 RESET 27 CHG LD 26 25 24 23 PAGE 22 HOOK 21 VTX 20 CNDET 19 CHG D 18 TX D 17 P MUTE 16 CLOCK 15 VDD RST P10 P11 P12 P13 P14 P15 P16 P17 P72 P73 P74 P75 XOUT XIN TEST P67 P66 P65 P64 P63 P62 P61 P60 P77 P76 VSS 1 OSCO 2 OSCI 3 TEST 4 POW F 5 DTMF4 6 DTMF3 7 DTMF2 8 DTMF1 9 DTMF0 10 RXDATA 11 COUT1 12 STROBE 13 DATA 14
7.952 XTAL\10
VTX CR-DET TX DATA C106 105 C0603
R75 R77 R78 R79 R81 R83 R85 10K R0603 R88 10K R0603 RF-STB 10K R0603 RF-DATA R90 300K R0603 R95 3K9 R0603 C72 223 C0603 R96 270K R0603 RX DATA
10K 20K 39K 82K 160K
R0603 R0603 R0603 R0603 R0603 R86 47K R0603
Q6 SOT-23 ZD9 NA ZD7.5
IC2
C68 0.47uF/50V EC5\5 R99 82K R0603 Q9 SOT-23 + DIP28 C71 104 C0603
0V
L3 JUMP 4MM
R93 100K R0603
R94 NA R0603 11
1 R172 C108 104 R0603 R104 4K7 R0603
4
EXPO C107 104 C0603 COMP
C75 223 C0603 VREG VREG
R105 4.7K R0603 R106 22 1/4W R10 R181 330 R0603
22K L10
+12V
VB ZD1 22V/1W ZD7.5 ZD2 22V/1W ZD7.5 RY1 500 OHM RY1 D1 D\362
TP
13V to 5V While charging
ZD10 15V/0.5W ZD7.5 CHARGE+ D7 2700V TP
+
-
L5 12uH L10
R108 4K7 R0603
IC3B
SIP14 11 5
7
CHARGE--
VB
+12V 4
6 C79 104 C0603
R166 47 R0603 R109 330K + R0603 C102 220UF/25V EC10/5
C77 150P C0603 + C78 470UF/10V EC10/5 ZD3 C83 4V7 NA D\362 C0603
0V
ZD4 NA ZD7.5 L7 12uH L10 R118 150 1/2W R12.5
C82 104 C0603 C105 100UF/10V EC5/5 R114 22K R0603 C84 +
6 R111 470 5 R0603 4
T7 LB-0627 1 2 3
R107 110 2W R15 R110 100K R0603 C81 1U/250V MPC25/22 Q10 TO-92\EBC R112 1K R0603 PMUTE
D2 D10B D4 D10B
D3 D10B D5 D10B ZNR1 270V ZNR\7K
ZD5 4V7 D\362 R115 56K R0603 C124 C123 224 474 C0603 C0603
R113 33/1W R12.5
PULSE DAIL IC5 DIP4
R116 0 R120 0 R0603 Q12 C87 NA C0603 TO-92\EBC R124 27 R0603 R130 R10 27 R0603 R10 Q15 TO-92\EBC C91 10uF/100V EC5\5 +
R121 NA R0603 R157 NA R0603 A
LIMITED CURRENT
JK1 PIN2
CHAG-CNTL
AGC CIRCUIT
R125 NA R0603 AGC1
Q11 SOT-23 R122 1K3 R0603
R119 82K R0603 R123
NA C0603 Q13 NA SOT-23
C85 683 C0603 R126 620 R0603 C90 224 C0603
15K R0603
Q16 SOT-23 Q17 SOT-23 R142 22 1/4W R10 D6 D10B ADAPTOR 120V AC 12VDC 200mA TP L8 JUMPER L10 Q19 TO-92\EBC + C95 470UF\25V EC10\5 L9 JUMPER L10 TP R11 R0603 1K + C98 220uF EC5\5 C99 103 C0603 TP VCPU ZD8 ZD7.5 VB TP R141 C92 5K1 R0603 104 C0603 R143 510K R0603 R146 15K R0603 + C94 100UF\10V EC8\5 RING DET Q20 SOT-23 TP R148 10K R0603
R137 4K7 R0603
R138 4K7 R0603
R189 22K R0603
C121 103 C0603
R139 10M R0603
4
+5V
TP + C96 103 R0603
VREG
R145 1K R0603
Q18 TO-92\EBC
C93 562 C0603 14
+12V
4 + 11 12 13
R144 20M 1/4W R10 ZD6 27V ZD7.5
VREG R147 R0603
C97 4U7/50V EC5\5 R149 1K8 R0603
IC3D
SIP14 R150
0V
R152 R10
ZD7 27V ZD7.5
RING IMPEDENCE
R151 6K8/1W R12.5 C100 1U/250V MPC25\22
AGC CIRCUIT
RX TX
JK2 JACK DC
TP
510K R0603 C101 562 C0603
+5V
20M 1/4W
KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (Base Unit)
+
AGC2
R134 0 R0603
10
-
R131 100K R0603
R132 2K2 R0603
Q14 SOT-23
R127 NA R10
C88 105 C0603
C89 NA C0603
R133 82 R0603
R129 6K8 R0603
11
+
C73 104 C0603
R100 100K R0603
0V
C69 270P C0603 2 3
C70 223 C0603 C111 103 R0603 R102 NA R0603
IC3A
SIP14
C74 104 C0603
R103 R180 22K 56K R0603 R0603
VREG
L4 12uH L10 C76 680P 500V CC6\5
FS1 JUMP 5MM FUSE\12.5
TP
R163 NA R0805 JK1 1 2 3 4 LINE JACK 4C LINE\JK1 R162 NA R0805
60
R160 0 R0805 R161 0 R0805
C80 680P 500V CC6\5
IC3 PIN7 R117 390K R0603 R135 R0603 0603 R128 NA R10 C120 NA C0603 1.5K C132 104 C0603 9 C86 103 C0603
L6 12uH L10
TP
0V
C126 224 C0603 8
R178 NA R10
AGC1 R179 NA R0603 R0603 27K R187
D10 D\362
AGC2
IC3C
SIP14
+12V
R186 R0603 4K7
+ D9 D\362
C127 47UF
R188 10K R0603
0
RING SELECT
26.2. RF Unit (Base Unit)
ANT1 ANTENNA PAD3 C2 C1 473 47UF/10V C0603 EC5/5 R156 47 R0603 ZD11 CH+ 15V/0.5W ZD7.5 TP L1 2.2uH L7.5 C5 NA C0603 R175 NA R0603 2 C14 NA C0603 3 DPX1 0830 DUP\5P R29 0 R0603 1 6 R39 NA R0603 3 4 TP T2 1437 C17 10U/16V EC5/5 39 C6 104 C0603 C15 2U2/50V EC5/5 R1 47 R0603 CF1 10.7MHZ FILTER\1 1 2 3 R2 330 R0603 C7 102 C0603 1 C11 473 C0603 36 35 34 33 32 31 30 CF2 450 FILTER\2 C8 104 C0603 C16 27P C0603 29 28 27 26 2 3 4 T1 1431 IFT\7 3 R3 15K R0603 C4 103 C0603 R7 330K R0603 C9 470P C0603 R10 39K R0603 25 R5 10K R0603 R8 10K R0603 R4 8K2 R0603
+
1
TP
5
IFT\7
38
37
25
38
37
36
35
34
33
32
31
30
29
28
27
ANT GRX RX
Q1 TO-92\EBC
C19 102 C0603
40
L12 750nH L1206 R28 C22 R12 103 C0603 100 R0603 C20 2U2/50V EC5/5
TP
2.1V41
42
E-REC 2ND VREF MIX 40 IST Mix ININ
39 41 42 43 44 45 46 47
N-REC 2ND MIX OUT
TX GTX
VCC1
IF DEC IN
GND2 IF OUT
24 24 QUAD DET. F OUT FIL-IN DATA I/P OUT
26
1 2
4 5
+
L10 1.2uH L10 C27 103 C0603
VCC2 VCO CONT VCO1 VCO2 C-RECT RX CP TX CP
C110 47P R0603
C104 39P C0603
NA C23 103 R0603 C0603
43 C26 R14 7P 10K C0603 R0603 44
C133 39P C0603
R15 5K6 R0603 R16 15K R0603 C29 104 C0603
R17 0 R0603 C31 103 C0603
TP
45 C30 2U2/50V EC5/5 46 47
EXP OUT 17 COMP OUT
11 11
17 16 15
0V
TP
48
10
12
13
R22 4K7 R0603 C39 103 C0603
C125 10P C0603
TX IN
10
12
13
4.8V
+
C35 18P
VC1 20P
C0603 C37 150P
C0603 C41 47U/10V EC5/5 C43 104 C0603 X1 11.15MHZ XTAL\10A R30 100K R0603 C0603 C40 27P R173 R174 1K 1K L10 R170 1K R0603
C34 470P C0603
C42 2U2 50V EC5/5 VB R27 56 R0603
+
R24 10K R0603
EC5/5 C38 1U/16V R23 56K R0603
C36 100P
14
1
2
3
4
5
6
7
8
9
14
1
2
3
4
5
6
7
8
9
PLL GND 48 VCC3 LO1
LO2
S-OUT CLK
DATA STB
FL-OUT
FL-IN
AF C-NF OUT
REF OUT16 REF IN 15 AF-IN
+
C46 102 C0603
C47 103 C0603
C103 47UF/10V EC5/5
+
R41 47K R0603
R33 0 R0603 R34 NA R0603 C49 103 C0603
R35 100 R0603
T5 1436 IFT\7 4
R42 10K R0603
3
2 R46 5 C53 12P C0603 Q3 SOT-23\ECB 1 2K2 R0603 C55 103 C0603 R47 NA R0603 C60
Q4 SOT-23\ ECB
C56 18P C0603
18P C0603
R55 680 R0603
R53 15K R0603
+
R154 0 R0603 R37 100 R0603 C54 2P C0603
IST MIX OUT
C10 470P C0603
R6 10K R0603
C12 103 C0603
C13 NA C0603
R9 NA R0603
C131 104 C0603
C18 473 C0603 TP TP R13 62K R0603 C24 223 C0603 R191 68K
IC4
4 3 2 1 5 6 7 8 R193 100K R0603
R192 120K R0603
+ +
DATA O/P 23
23 22 21 20 19 18 TP C28 104 C0603 C32 2U2/50V EC5/5 R18 4K7 R0603
4.4V 10.7MHz 450kHz
0V
RSSI 22 BAT. ALM 21
R190 10K R0603 C25 822 C0603 C128 104 C0603
R0603 R194 0 R0603
C130 10uF C0603
IC1
RO2 20 RO1 19 REC IN 18
C129 104 C0603
VREG
A C33 100P C0603 R19 120K R0603 R20 4M7 R0603 R21 47K R0603
VERG RX DATA EXPO COMP RF-STB RF-DATA RF-CLK CR-DET VTX TX DATA GND
61
R176 0 R0603
C109 682 C0603 R26 47K R0603
+
C0603
C44 TP
R25 68K R0603 R32 1M R0603
105 C0603
L10
R31 47K R0603
C45 682 C0603
R155 47 R0603
TP Q2 C48 223 C0603 R38 82K R0603 R52 2M2 R0603 R40 22K R0603 SOT-23 R36 220K R0603 TP R45 330K R0603
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
C51 103 C0603
+
R43 39K R0603
C50 22U/16V EC5/5
C52 223 C0603
R44 100K R0603 R50 8K2 R0603
C57 Q5 SOT-23 C59 39P C0603 C62 39P C0603 T6 1961 IFT\7
R49 47K R0603
39P C0603 R54 NA R0603
R51 1K8 R0603
R48 22K R0603
C58 682 C0603
R56 2K2 R0603
DV1 VCD2
C61 104 C0603
RX TX
KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (RF Unit (Base Unit))
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
27 SCHEMATIC DIAGRAM (Handset)
27.1. Handset
+
L2 12uH L4 C65 15P C0603 R53 82 R0603
C63 100uF/10V EC4\2.5 MINI
C64 103 C0603
R54 100K R0603
R55 39 R0603
Q7 STO-23 C66 15P C0603 X2 32.768KHz XTAL\2R C67 NA C0603 C68 NA C0603 C84 102 C0603 R56 2K2 R0603 R57 3K3 47 R0603 R0603 VOL1 D2 D\362 D3 D\362 LED1 GREEN LED\SQ 1 2 BZ1 BZ BZ12 Q8 SOT-23 TALK R61 R0603 330 LED5 GREEN LED\SQ GREEN LED\SQ LED2 LED3 GREEN LED\SQ LED4 GREEN LED\SQ
TP
3.5Vp-p 32.768kHz
R112 1K R0603 TX DATA ROW5 ROW4 R59 R60 2K2 R0603 2K2 R0603
ALERT BUZ CNTL CHARGE DET TX DATA ROW5 ROW4
R58
VDD
VOL2 R105 10K R0603 RF-STB
P15 P16 P17 P20 XTIN XTOUT VDD P77 P76 P75 P74
34 35 36 37 38 39 40 41 42 43 44
ROW3 ROW2 ROW1 ROW0 R71 NA R0603 R72 1M R0603 R73 NA R0603 RSSI
R62 R66 R67 R69
2K2 R0603 2K2 R0603 2K2 R0603 2K2 R0603
ROW3
0V to 5V While charging
R77 10K R0603
22 21 20 19 18 17 XOUT 16 XIN 15 RESET 14 TEST 13 12
0V 0V
R79 1M R0603 R80 NA R0603 R81 1M R0603
P63 P62 P61 P60 NC VSS XOUT XIN RESET TEST P00
33 32 ROW2 31 ROW1 30 ROW0 29 28 27 26 25 24 CR-DET 23
P14 P13 P12 P11 P10 P51 P50 P67 P66 P65 P64
3.9V IC2
QFP-44P
P73 P72 P71 P70 P07 P06 P05 P04 P03 P02 P01
R63 1 DATA R64 2 CLOCK 3 RX PWR 4 RX DATA R68 5 BACKLED R70 6 TALK LED 7 LOW LED 8 COL3 9 COL2 10 COL1 11 COL0
10K R0603 10K R0603 10K R0603 2K2 R0603
RF-DATA RF-CLK VTX RX DATA
RECHG R65 R0603 330 LED6 RED LEC\SQ
R74 R75 R76 R78
100K 100K 100K 100K
R0603 R0603 R0603 R0603
0V
2 1
62
TP CHG+ L4 H12u L7.5 D1 D\362 R85 1K R0603 R86 100K R0603 C69 104 C0603 C72 104 C0603 C86 104 C0603 ZD1 10V 0.5W D\362 ZD3 5V6 0.5W ZD7.5 Q9 SOT-23 C73 104 C0603 VBAT TP CHGL5 12uH L7.5 TP TP BATT1 3V6/300mA CNT2P\2.5
2Vp-p 4MHz
R82 0 X3 4.0 MHZR0603 XTAL\10 ROW5 R84 1M R0603 C70 ROW4 C71 33P C0603 ROW3 K14 1 ROW2 K17 1 ROW1 K20 1 ROW0 TALK 2 K21 1 AUTO 2 K22 DIRT 1 2 4 2 1 2 K15 1 TP K18 1 5 2 TP 2 2 1 K19 3 2 1 K16 6 2 K11 1 7 2 K12 1 8 2 1 K13 9 2 K8 1 * 2 K9 1 0 2 1 K10 # 2 K1 1 K5 1 RINGER 2 PROG 2 K2 1 K6 1 FLASH 2 PAUSE 2 1 K3 LOUD 2 K7 1 CH 2 K4 1 REDIAL 2
3.9V
R91(LOW BATT) R83 0 R0603
KP\RO\4.5C
0V
R87 100K R0603
R104 NA R0603
L3 12uH L4
33P C0603
3.9V to 0V While charging
Q11 SOT-23 R111 1K R0603
L7
120 OHM COIL SMD
R0805
C74
473 C0603
3.9V
KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (Handset)
27.2. RF Unit (Handset)
ANT1 ANTENNA PAD3 R1 330 R0603 C2 C1 473 47UF/10V C0603 EC5/2.5 C85 105 C0603
1
VBAT
TP R93 10K R0603 R2 15K R0603 C75 103 C0603 R5 10K R0603 C76 470P C0603 C13 27P C0603 R95 39K R0603
27 26 25
+
CF1 10.7MHZ FILTER\1 1 3
2
TP 27P C0603 L1 0.68UH L7.5 C5 104 C0603 T3 1440 IFT\7
3
2 3 4
R106 150 R0603
C12 2U2/50V EC5/2.5
C6 102 C0603 1 C8 473 C0603
36 35 34
CF2 455E FILTER\2
T1 1431 IFT\7
3
R3 6K8 R0603
C7 104 C0603
TP C11 NA C0603
5
C77 470P C0603
R94 330K R0603
R6 10K R0603 C9 103 C0603 C10 R7 NA NA C0603 R0603 C14 103 C0603 R8 220K R0603
RX
1
6 DPX1 DPX0830 DUP\25P 2 4
3
38
37
36
35
34
33
32
31
30
29
28
27
26
ANT GRX RX
39
+
25
C15 10U/16V EC5/2.5
38
37
33
32
31
30
29
28
TX GTX
39
C17 102 C0603
40
TP R10 82K R0603 C0603 C22 39P Q1 SOT-23\EBC + C88 104 C0603 C18 2.2U/50V EC5/2.5 C27 104 C0603 R14 15K R0603 TP C26 103 C0603 R15 0 R0603 C31 103 C0603
2.1V 41
42
E-REC 2ND MIX 40 IST Mix ININ
VREF
1 2
4 5
41 VCC2
42 VCO CONT 43 VCO1 44 VCO2 45 C-RECT 46 RX CP 47 TX CP 48 PLL GND VCC3
1 2
L6 1.8uH L7.5
43 C24 22P C0603 44 45 C29 2.2U/50V EC5/2.546
+
R11 5K6 R0603
TX
47
0V 48
TP R24 4K7 R0603 C40 103 C0603 + C43 2U2/50V EC5/2.5 47U/10V EC5/2.5 C42 +
10
11
12
13
14
3
4
5
6
7
8
9
10
11
12
13
14
TX IN
1
2
3
4
5
6
7
8
C0603 C39 150P
9
C44 105 C0603 X1 10.245MHZ XTAL\10A
R38 0 R0603 T5 1856 IFT\7 4 C50 103 C0603 2 5 C3 39P C0603 C54 10P C0603 Q5 SOT-23\EBC C60 27P C0603
1
R43 100K R0603 R47 2K2 R0603
R97 100K R0603
3
R40 33 R0603 + C51 10U/16V EC5/2.5 C56 1P C0603 R44 39K R0603 C57 Q6 SOT-23\EBC C59 27P C0603 C62 56P C0603 C52 103 C0603 T6 15P IFT\7 1960
C55 103 C0603
+ LO1 C0603 C0603 C41 22P
IST MIX OUT
N-REC 2ND MIX OUT
VCC1
IF IN
DEC
GND2
IF OUT
QUAD
DET. OUT
24 F OUT FIL-IN DATA I/P DATA O/P 23
24 23 22
C16 473 C0603 TP
10.7MHz
3.9V 0V 450kHz IC1
RSSI 22 BAT. ALM 21 RO2 RO1 20 19
TP 21 C23 20 102 C0603 19 C28 6800P 18 C0603 17 C32 104 C0603 16 15 C34 100P C0603 R13 R16 12K 10K R0603 R0603 C30 104 C0603 C20 NA C0603 REC1 SD153 SIP2 C21 R9 223 82K C0603 R0603
TP
REC IN 18 EXP OUT 17
TP R17 5K1 R0603
R12 220K R0603 R19 VOL1 VOL2 VB RX DATA RSSI IC2-22 RF-STB RF-DATA RF-CLK VTX TXDATA GND
3.9V
FL-IN LO2 S-OUT CLK DATA STB FL-OUT COMP OUT C-NF AF OUT
REF 16 OUT REF IN 15 AF-IN
R18 10K C78 R0603 103 C0603 R21 82K R0603
Q2 SOT-23\ECB R20 1K8 R0603 C33 104 C0603 R103 1M R0603 R23 47K R0603 TP
4K7 R0603 R91 0 R0603 R22 4K7 R0603
63
Q3 SOT-23\ECB
C36 VR8 18P VC1 20P
R108 R109 R110 1K R0603 1K R0603 1K R0603
C35 680P C0603
+ R26 10K R0603 R25 56K R0603
C38 100P C0603 R28
C79 103 C0603 R29 6K8 R0603 C0603 R102 333 R0603
3.1V (In Talk Mode)
MC1 MIC
R30 0 R0603
C45 683 C0603
C37 120K 10U/16V R0603 EC5/2.5 R35 47K R0603 C47 682 C0603 C87 N/A C0603 R101 0
R36 2K R0603
C80 103 C0603
TP
R34 220K R0603
C46 NA C0603
C48 47U/10V EC5/2.5
+
R37 1K R0603
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
TP
R96 0 R0603 C49 223 C0603 C53 223 C0603 R49 47K R0603 R45 100K R0603 R50 8K2 R0603 R51 2K7 R0603 R41 68K R0603 R98 4M7 R0603 R42 22K R0603
Q4 SOT-23\ECB
R99 4K7 R0603 R39 220K R0603
TP R46 430K R0603 C58 103 C0603 R107 2K2 R0603
C0603
R48 22K R0603
R52 680 R0603
DV1 VCD2
C61 104 C0603
RX TX
KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (Handset (RF Unit))
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
64
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF
28 CIRCUIT BOARD (Base Unit)
28.1. Component View
IC5
KX-TC1205RUB/W/S/F CIRCUIT BOARD (Component View (Base Unit))
65
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF
28.2. Flow Solder Side View
T.P ( CH change at test mode) TXPOWER TXGND TX DATA RX-VCO (DV1) TX-VCO 2nd Mix (RF IC: 36) IF IN (RF IC: 32) R98: for Changing the channel
XOUT (CPU: 1)
VDD (CPU: 28)
CHG LD (CPU: 26)
IC1
DETOUT (RF IC: 27) RST (CPU: 27)
+12V GND
IC2
RX DATA (CPU: 10) RX DATA (RF IC: 23)
RING TIP
CHG DET (CPU: 18) TX DATA (CPU: 17)
IC4
RING DET (CPU: 24)
KX-TC1205RUB/W/S/F CIRCUIT BOARD (Flow Solder Side View (Base Unit))
66
IC3
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF
29 CIRCUIT BOARD (Handset)
29.1. Component View
IC2
TX DATA (DV1)
TX DATA (CPU: 36)
VDD (CPU: 40) (A) Battery Low (G) Noise Squelch
CHG DET (CPU: 37)
KX-TC1205RUB/W/S/F CIRCUIT BOARD (Component View (Handset))
67
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF
29.2. Flow Solder Side View
V Bat (RF IC: 33)
IF IN (RF IC: 32)
RX VCO
TX VCO
2nd Mix TXPOWER TXGND (RF IC: 36) KX-TC1205RUB/W/S/F CIRCUIT BOARD (Flow Solder Side View (Handset))
IC1
68
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
69
I KXTC1205RUB KXTC1205RUW KXTC1205RUS KXTC1205RUF