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DBTV1301
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL MFR'S VERSION B
Design and specifications are subject to change without notice.
DBTV1301
SERVICE MANUAL
COLOR TELEVISION RECEIVER
REVISION 2 MFR'S VERSION H
MFR'S VERSION C H I
PCB010 TMX494A TMX494B
TU001 NJH3022U268 TECC1040PG32D
V801 A34AGT13X98(L) A34JXV70X28N45 A34AGT13X98(L)
Please file the revision with the original version.
Change of CRT
ELECTRICAL REPLACEMENTPARTS LIST
MFR'S VERSION I REF. NO. ! V801 ! R429 C804 C805 C806 ! CP401 PCB010 PART NO. 098Q1404B2 CRT W/DY R655812R7J R,FUSE CS0KB04K2K CC CS0KB04K2K CC CS0KB04K2K CC 069X450029 A3J804A010 DESCRIPTION A34AGT13X98(L) 2.7 OHM 1W 270 PF 50V B 270 PF 50V B 270 PF 50V B PART NO. MFR'S VERSION H DESCRIPTION
098Y140497 CRT W/DY A34JXV70X28N45 R655812R2J R,FUSE CS0KB04L2K CC CS0KB04L2K CC CS0KB04L2K CC 2.2 OHM 1W 330 PF 50V B 330 PF 50V B 330 PF 50V B
CONNECTOR PCB SIDE B05B-DVS MAIN PCB ASS'Y (VERSION I) TMX494B
069D450049 CONNECTOR PCB SIDE TD-50-5P A3J804C010 MAIN PCB ASS'Y (VERSION H) TMX494B
MAIN PCB's are not interchangeable.
SPEC.NO. O/R NO.
M3J8-04C K193015
DBTV1301
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL MFR'S VERSION B
Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
6. AVOID AN X-RAY
Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
7. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
1. Unplug the plug from the AC outlet. 2. Remove the antenna terminal on TV and turn on the TV. 3. Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1]. 4. If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal Earphone jack
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
IMPORTANT
Inferior silicon grease can damage IC's and transistors. When replacing an IC's or transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING ...................................................................................................... A1-1 HOW TO ORDER PARTS ........................................................................................................................... A1-1 IMPORTANT ................................................................................................................................................ A1-1 CONTENTS ................................................................................................................................................. A2-1 GENERAL SPECIFICATIONS .................................................................................................................... A3-1~A3-4 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP........................................................................................................ B1-1 2. REMOVAL AND INSTALLATION OF FALT PACKAGE IC.......................................................... B2-1, B2-2 SERVICE MODE LIST ................................................................................................................................. C-1 CONFIRMATION OF HOURS USED .......................................................................................................... C-1 WHAN REPLACING EEPROM (MEMORY) IC ........................................................................................... C-1 ELECTRICAL ADJUSTMENTS .................................................................................................................. D-1~D-4 BLOCK DIAGRAM ...................................................................................................................................... E-1, E-2 PRINTED CIRCUIT BOARDS MAIN/CRT .......................................................................................................................................... F-1~F-4 SCHEMATIC DIAGRAMS MICON/TUNER .................................................................................................................................. G-1, G-2 CHROMA ........................................................................................................................................... G-3, G-4 TV POWER ........................................................................................................................................ G-5, G-6 DEFLECTION/CRT ............................................................................................................................ G-7, G-8 SOUND/AV ........................................................................................................................................ G-9, G-10 WAVEFORMS ............................................................................................................................................. H-1, H-2 MECHANICAL EXPLODED VIEW .............................................................................................................. I-1 MECHANICAL REPLACEMENT PARTS LIST .......................................................................................... J1-1 ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................ J2-1, J2-2
A2-1
GENERAL SPECIFICATIONS
G-1 TV System CRT CRT Size / Visual Size CRT Type Deflection Magnetic Field BV/BH 13 inch / 335.4mmV Normal 90 degree +0.45G/0.18G NTSC 1Speaker Bottom 3 Inch 8 ohm 1.0 W 0.8 W No US System M 1Tuner Others F-Synth VHF/UHF 75 ohm 2 - 69, 4A, A-5 - A-1, A - I, J - W, W+1 - W+84 45.75MHz 41.25MHz 4.50MHz No No Yes 120V AC 60Hz at AC Stand by (at AC) Per Year Power Fuse Safety Radiation X-Radiation Operation Storage 54 W at AC 120 V 60 Hz 5 W at AC 120 V 60 Hz -kWh/Year Yes UL/CSA FCC /DOC DHHS/HWC +5oC ~ +40oC -20oC ~ +60oC Less then 80% RH Yes Character Yes Yes Yes Yes Yes Yes No No No No No No Yes Yes Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes No No No No No No Yes No Yes
Color System Speaker Position Size Impedance MAX 10%(Typical)
Sound Output NTSC3.58+4.43 /PAL60Hz Broadcasting System Tuner and Receive CH
G-2
Tuning System
System Destination Tuning System Input Impedance CH Coverage Picture(FP) Sound(FS) FP-FS
Intermediate Frequency Preset CH Stereo/Dual TV Sound Tuner Sound Muting Power Source Power Consumption
G-3
Power
AC DC
Protector G-4 Regulation
G-5 G-6 G-7
Temperature Operating Humidity On Screen Menu Display
Menu Type Picture Contrast Brightness Color Tint Sharpness Audio Bass Treble Balance BBE On/Off Stable Sound On/Off CH Set Up TV/CATV Auto CH Memory Add/ Delete Language V-chip CH Label Favorite CH Color Stream DVD/DTV Control Level Sound Brightness Contrast Color Tint (NTSC Only) Sharpness Tuning Bass Treble Balance Back Light Stereo,Audio Output,SAP Video Color Stream Channel(TV/Cable)
A3-1
GENERAL SPECIFICATIONS
CH Label Sleep Timer Sound Mute V-chip Rating G-8 G-9 OSD Language Clock and Timer Sleep Timer OSD Language Setting Max Time Step Program(On Tim / Off Tim) No Yes Yes Yes English French English 120 Min 10 Min No No -Min RC-DW NEC 86-05 h 3V UM-4 x 2 pcs 27 Keys Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Yes Yes No No No No No No No No No No No No No Yes Yes No Yes No No Yes Yes Yes USA,ORION Type No No No No No No
Spanish
G-10
Remote Control
G-11
Features
On/Off Timer Wake Up Timer Timer Back-up (at Power Off Mode) more than Unit Glow in Dark Remocon Format Custom Code Power Source Voltage(D.C) UM size x pcs Total Keys Keys Power 1 2 3 4 5 6 7 8 9 0 100 CH Up CH Down Volume Up Volume Down TV/Caption/Text CH1/CH2 TV/Video(TV/AV) CH RTN/CH ENT(Quick View) Sleep RE Call(Call) Reset Menu Enter Mute Exit MTS(Audio Select) Set + Set Multi Brand Keys CH Up(VCR) CH Down(VCR) Pause/Still TV/VCR(VCR) Code FF Rew Rec Play Stop TV VCR Cable Auto Degauss Auto Shut Off Canal+ CATV Anti-theft Rental Memory(Last CH) Memory(Last Volume) V-Chip Type BBE Auto Search CH Allocation SAP Channel Lock Just Clock Function
Sec No
A3-2
GENERAL SPECIFICATIONS
Game Position CH Label VM Circuit Full OSD Premiere Comb Filter Lines Auto CH Memory Hotel Lock Closed Caption Stable Sound Energy Star Favorite CH Owner's Manual Remote Control Unit Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Dew/AHC Caution Sheet AC Plug Adapter Quick Set-up Sheet Battery UM size x pcs OEM Brand AC Cord AV Cord (2Pin-1Pin) Registration Card PTB Sheet 300 ohm to 75 ohm Antenna Adapter Switch Front Power System Select Main Power SW Sub Power Channel Up/Reset Channel Down/Enter Volume Up/Set Up Volume Down/Set Down MENU=Volume Up+Volume Down Rear AC/DC TV/CATV Selector Degauss Main Power SW Indicator Power Stand-by On Timer Terminals Front Video Input Audio Input Other Terminal Rear Video Input(Rear1) Video Input(Rear2) Audio Input(Rear1) Audio Input(Rear2) Video Output Audio Output Euro Scart Color Stream Diversity Ext Speaker DC Jack 12V(Center +) VHF/UHF Antenna Input AC Outlet Approx. W x D x H (mm) Net (Approx.) Gross (Approx.) Master Carton Content No No Yes No No No No No No No No No No No No No No No Yes No No No Yes Yes Yes Yes Yes No No No No No No No RCA RCA x 1 Ear Phone No No No No No No No No No No No F Type 362 x 360 9.5 kg 11.0kg ---No x 320.5 ( 20.9 lbs) ( 24.4lbs) No Sets No Yes No Yes No No No Language w/Guarantee Card English /French No Yes No No No No No No No
G-12
Accessories
G-13
Interface
G-14 G-15 G-16
Set Size Weight Carton
A3-3
GENERAL SPECIFICATIONS
Material Dimensions W x D x H(mm) Description of Origin Gift Box Material Dimensions W x D x H(mm) Design Description of Origin Drop Test Height (cm) Container Stuffing Cabinet Front Cabinet Rear --/-x -- x -No
G-17
Cabinet Material
Yes Double Full Color Carton W/Photo 440 x 408 x 380 As per Buyer's Yes Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces 62 866 Sets/40' container PS 94V0 DECABROM PS 94V0 DECABROM
A3-4
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. 3. After one side is removed, pull in the opposite direction to remove the other. NOTE Take care not to damage the Rubber Cap. INSTALLATION 1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 1-3.)
* *
After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged.
REMOVAL 1. Follow the steps as follows to discharge the Anode Cap. (Refer to Fig. 1-1.) Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated screwdriver, touch the support of the Anode with the tip of the screwdriver. A cracking noise will be heard as the voltage is discharged. Location of Anode Cap
Fig. 1-3 GND on the CRT NOTE Confirm that there is no dirt, dust, etc. at the spot where the cap was located. 2. Arrange the wire of the Anode Cap and make sure the wire is not twisted. 3. Turn over the Rubber Cap. (Refer to Fig. 1-4.)
Screwdriver
CRT Support Alligator Clip
GND on the CRT
Fig. 1-1
Fig. 1-4 4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 1-5.
2. Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support. (Refer to Fig. 1-2.) Rubber Cap
CRT Support Fig. 1-2
CRT
Support Fig. 1-5
5. Confirm that the Support is securely connected. 6. Put on the Rubber Cap without moving any parts.
B1-1
DISASSEMBLY INSTRUCTIONS
2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC
REMOVAL 1. Put the Masking Tape (cotton tape) around the Flat Package IC to protect other parts from any damage. (Refer to Fig. 2-1.) NOTE Masking is carried out on all the parts located within 10 mm distance from IC leads.
Blower type IC desoldering machine
3. When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) NOTE Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.
Masking Tape (Cotton Tape)
IC
Tweezers
Fig. 2-1
IC
2. Heat the IC leads using a blower type IC desoldering machine. (Refer to Fig. 2-2.) NOTE Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely. 4. Peel off the Masking Tape.
Fig. 2-3
5. Absorb the solder left on the pattern using the Braided Shield Wire. (Refer to Fig. 2-4.) NOTE Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.
Blower type IC desoldering machine
Braided Shield Wire
Soldering Iron
IC
Fig. 2-2
IC pattern
Fig. 2-4
B2-1
DISASSEMBLY INSTRUCTIONS
INSTALLATION 1. Take care of the polarity of new IC and then install the new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily. (Refer to Fig. 2-5.) 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thintip Soldering Iron. (Refer to Fig. 2-8.)
Thin-tip Soldering Iron
IC
Soldering Iron
Fig. 2-8 5. Finally, confirm the soldering status on four sides of the IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering. NOTE When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.
Solder temporarily
Solder temporarily
Fig. 2-5 2. Supply the solder from the upper position of IC leads sliding to the lower position of the IC leads. (Refer to Fig. 2-6.)
Solder
Soldering Iron
IC
Supply soldering from upper position to lower position
Fig. 2-6 3. Absorb the solder left on the lead using the Braided Shield Wire. (Refer to Fig. 2-7.) NOTE Do not absorb the solder to excess.
Soldering Iron IC
Braided Shield Wire
Fig. 2-7
B2-2
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key VOL. (-) MIN VOL. (-) MIN Remocon Key 0 1 Releasing of V-CHIP PASSWORD. Initialization of the factory. NOTE: Do not use this for the normal servicing. If you set a factory initialization, the memories are reser such as the clock setting, the cheannel setting, the POWER ON total hours, and PLAY/REC total hours. POWER ON total hours is displayed on the screen. Refer to the "CONFIRMATION OF HOURS USED". VOL. (-) MIN 6 Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (MEMORY) IC". VOL. (-) MIN 8 Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing. Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment). Operations
VOL. (-) MIN
9
CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation. 1. Set the VOLUME to minimum. 2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. 3. After the confirmation of using hours, turn off the power.
ADDRESS DATA
INIT CRT ON
00
83 0010
Initial setting content of MEMORY IC. POWER ON total hours.
= (16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
FIG. 1
WHEN REPLACING EEPROM (MEMORY) IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1.
INI 00 +0 08 +1 20 +2 98 +3 02 +4 09 +5 B3 +6 24 +7 19 +8 01 +9 00 +A 44 +B 05 +C 00 +D D5 +E FF +F A5
Table 1 1. Enter DATA SET mode by setting VOLUME to minimum. 2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. ADDRESS and DATA should appear as FIG 1. 3. ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until required ADDRESS to be changed is reached. 4. Press ENTER to select DATA. When DATA is selected, it will "blink". 5. Again, step through the DATA using SET + or - until required DATA value has been selected. 6. Pressing ENTER will take you back to ADDRESS for further selection if necessary. 7. Repeat steps 3 to 6 until all data has been checked. 8. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input. The unit will now have the correct DATA for the new MEMORY IC.
C-1
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION · Use an isolation transformer when performing any service on this chassis. · Before removing the anode cap, discharge electricity because it contains high voltage. · When removing a PCB or related component, after unfastening or changing a wire, be sure to put the wire back in its original position. Inferior silicon grease can damage IC's and transistors. When · When you exchange IC and Transistor for a heat sink, apply the silicon grease (YG6260M) on the contract section of the heat sink, Before applying new silicon grease, remove all the old silicon grease. (Old grease may cause damages to the IC and Transistor.) Prepare the following measurement tools for electrical adjustments. 1. Synchro Scope 2. Digital Voltmeter On-Screen Display Adjustment 1. In the condition of NO indication on the screen. Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen as shown in Fig. 1-1.
2. BASIC ADJUSTMENTS
2-1: RF AGC DELAY Place the set with Aging Test for more than 15 minutes. Receive an 63dB monoscope pattern. Connect the digital voltmeter to W043. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF.AGC". 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V ± 0.05V. 1. 2. 3. 4. 2-2: CUT OFF 1. Adjust the unit to the following settings. R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64, B.BIAS=64, BRIGHTNESS=120, CONTRAST=40. 2. Place the set with Aging Test for more than 15 minutes. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF". 4. Adjust the Screen Volume until a dim raster is obtained. 2-3: FOCUS 1. Receive the monoscope pattern. 2. Turn the Focus Volume fully counterclockwise once. 3. Adjust the Focus Volume until picture is distinct. 2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. 1. Place the set with Aging Test for more than 10 minutes. 2. Receive the white 100% signal from the Pattern Generator. 3. Using the adjustment control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (10) on the remote control to select "R.BIAS". 5. Using the VOL. UP/DOWN button on the remote control, adjust the R.BIAS. 6. Press the CH. UP/DOWN button on the remote control to select the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS". 7. Using the VOL. UP/DOWN button on the remote control, adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS. 8. Perform the above adjustments 6 and 7 until the white color is looked like a white.
TV
00 OSD
15 Fig. 1-1
2. Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options shown in Fig. 1-2. 3. Press the MENU button on the remote control to end the adjustments.
NO. 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 FUNCTION OSD H CUT OFF RF DELAY VIF VCO H.VCO H.PHASE V.SIZE V.SHIFT R.DRIVE B.DRIVE R.BIAS G.BIAS B.BIAS BRIGHT CENT BRIGHT MAX BRIGHT MIN NO. 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 FUNCTION CONTRAST CENT CONTRAST MAX CONTRAST MIN COLOR CENT COLOR MAX COLOR MIN TINT SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STEREO X-RAY TEST
Fig. 1-2 D-1
ELECTRICAL ADJUSTMENTS
2-5: SUB TINT/SUB COLOR 1. Receive the color bar pattern. 2. Connect the oscilloscope to TP023. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (22) on the remote control to select "TINT". 4. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes as straight line (Refer to Fig. 2-1) 5. Connect the oscilloscope to TP022. 6. Activate the adjustment mode display of Fig. 1-1 and press the channel button (19) on the remote control to select "COL.CENT". 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 100% of the white level. (Refer to Fig. 2-2) 8. Receive the color bar pattern. (Audio Video Input) 9. Press the TV/AV button on the remote control to set to the AV mode. Then perform the above adjustments 2~7 2-8: VERTICAL SHIFT NOTE: Adjust after performing adjustments in section 2-7 1. Receive the crosshatch signal from the Pattern Generator. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V.SFT". 3. Press the VOL. UP/DOWN button on the remote control until the horizontal line becomes fit to the notch of the shadow mask. 2-9: OSD HORIZONTAL 1. Activate the adjustment mode display of Fig. 1-1. 2. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3)
TV
"A" Fig. 2-1 A 2-10: VIF VCO
00 OSD
15 B
Fig. 2-3
100%
1. Place the set with Aging Test for more than 10 minutes. 2. Receive an 80dB monoscope pattern. 3. Connect the digital voltmeter between the pin 5 of CP601 and the GND. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (03) on the remote control to select "V.VCO". 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.5V. Fig. 2-2 2-11: SUB BRIGHTNESS 1. Receive an 70dB monoscope pattern. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (13) on the remote control to select "BRI.CENT". 3. Press the VOL. UP/DOWN button on the remote control until the screen begin to shine. 4. Press the TV/AV button on the remote to set to the AV mode. Then perform the above adjustment 2, 3. 2-12: SUB CONTRAST 1. Receive an 70dB the color bar pattern. 2. Activate the adjustment mode display of Fig. 1-1 press the channel button (17) on the remote control to select "CONT.MAX". 3. Press the VOL. UP/DOWN button on the remote control until the contrast step No. become "40". 4. Press the TV/AV button on the remote to set to the AV mode. Then perform the above adjustment 2. 5. Press the VOL. UP/DOWN button on the remote control until the contrast step No. become "38".
white 100% 2-6: HORIZONTAL PHASE
red 100%
1. Receive the center cross signal from the Pattern Generator. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (05) on the remote control to select "H.PHAS". 3. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 2-7: VERTICAL SIZE NOTE: Adjust after performing adjustments in section 2-6 1. Receive the crosshatch signal from the Pattern Generator. 2. Activate the adjustment mode display of Fig. 1-1 and press the channel button (06) on the remote control to select "V.SIZE". 3. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes 10 ± 2%. 4. Receive a broadcast and check if the picture is normal. D-2
ELECTRICAL ADJUSTMENTS
2-13: Confirmation of Fixed Value (step No.) Please check if the fixed values of the each adjustment items are set correctly referring below. NO. 04 14 15 16 18 20 21 23 24 25 26 27 28 29 FUNCTION H VCO BRIGHT MAX BRIGHT MIN CONT CENT CONT MIN COLOR MAX COLOR MIN SHARPNESS FM LEVEL LEVEL SEPARATION 1 SEPARATION 2 TEST MONO TEST STERO RF 04 140 60 30 12 74 01 40 00 00 00 00 00 00 AV 04 140 60 30 12 75 01 40 00 00 00 00 00 00
D-3
ELECTRICAL ADJUSTMENTS
3. PURITY AND CONVERGENCE ADJUSTMENTS
NOTE 1. Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. 2. Place the CRT surface facing east or west to reduce the terrestrial magnetism. 3. Turn ON the unit and demagnetize with a Degauss Coil. 3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT) 1. Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 3-1) If the deflection yoke and magnet are in one body, untighten the screw for the body. 2. Receive the green raster pattern from the color bar generator. 3. Slide the deflection yoke until it touches the funnel side of the CRT. 4. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. 5. Switch the color bar generator from the green raster pattern to the crosshatch pattern. 6. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 7. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 8. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7. 3-2: PURITY NOTE Adjust after performing adjustments in section 3-1. 1. Receive the green raster pattern from color bar generator. 2. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide. 3. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. 4. Confirm red and blue colors. 5. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw. DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW 3-3: STATIC CONVERGENCE NOTE Adjust after performing adjustments in section 3-2. 1. Receive the crosshatch pattern from the color bar generator. 2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 3. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 3-4: DYNAMIC CONVERGENCE NOTE Adjust after performing adjustments in section 3-3. 1. Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left. (Refer to Fig. 3-2-a) 2. Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke. (Refer to Fig. 3-2-b) RGB RGB R G B
R G B RIGHT/LEFT SLANT
UPWARD/DOWNWARD SLANT Fig. 3-2-a
WEDGE
WEDGE
WEDGE WEDGE POSITION Fig. 3-2-b
PURITY MAGNETS 6 POLE MAGNETS 4 POLE MAGNETS Fig. 3-1
D-4
ELECTRICAL ADJUSTMENTS
4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
CD802
CP 80 2A
CRT
CP601
TU001 FB401
CP401 W043
L503 CRT CP502 CD806
T502
C R T
1 80 D C
R803
R807
S501B
CP806
CD101B
CP 80 2B
CD101A
CD501
MAIN PCB
AC IN
CRT PCB
SPEAKER
D-5
J8 01
S501A
C P8 01
TP023
TP022
BLOCK DIAGRAM
2 3 AGC SDA SCL CH. UP VOL. UP CH. DOWN VOL. DOWN POWER TU001 J1001
11
5
4
1
X602 3.579545MHz
IF
CHROMA IC IC601 M61250FP
34 X' TAL
AUDIO OUT 51 IC1001 AN7511 6 SOUND AMP IC 4 8 Q606 2
1
MICON IC IC101 OEC7073A 1
AUDIO MUTE CVIN 26
CF601 SAW FILTER
59 RF AGC OUT 63 VIF IN (1) 64 VIF IN (2) 31 Y SW OUT 23 R IN 22 G IN 21 B IN 24 FAST BLK 19 INV FBP OUT 20 V PULSE OUT 27 SCL 26 SDA 30 MCU RESET
POWER ON CONT 28 H OUT 11 R OUT 14 G OUT 15 B OUT 16 Q603
SP1001
7 KEY2 6
KEY1 RED R 34 GREEN G 35 BLUE B 36 BLANK BL 33 9 REMOCON H. SYNC 38 V. SYNC 37 SCL1 30 SDA1 31
8.7V REG OUT 47
REG. Q801 RED OUT Q802 GREEN OUT REG. Q803 BLUE OUT
UNREG + 12V
OS101 1
AT5.7V REG OUT 32
FBP IN 10
Q610 H-CTL Q604, Q605 REG. Q402 H. DRIVE Q401 H. OUTPUT
J703 2
RESET 27
MEMORY IC SDA SCL IC199 S-24C02BDP-1A
P.CON 5.7V REG 49
VREG VCC 42 TV/Y IN 41 VIF VIDEO OUT 58
5
6
5
V OUT
POWER 29
53 EXT AUDIO IN 38 EXT C in
V-OUT IC IC401 AN5522
J702 2
H-CTL 42
PUMP UP AMP + 7 DEGAUSS COIL L503 D501~D504 RECTIFIER FB401 9 L501 3 5 1 2 1 2 10 3 F501 F S HV DY 5 6 3
3
B Heater
9
G
7
R CRT
T502
4
Q504 FEED BACK Q502 13 BUFFER Q501 SWITCHING
Q507 FEED BACK SW
4
F
8
8
6
TUNER VIDEO SIGNAL R. SIGNAL G. SIGNAL B. SIGNAL DEFLECTION SIGNAL AUDIO SIGNAL LUMINANCE SIGNAL AC IN
E-1
E-2
PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS)
SOLDER SIDE
J1001 CP502 TH501 S501B R500
CD501
C505
C526_1
D509
R511
R510
D501
L501_1 C502 W836 FH502 F501 FH501 S501A OS101 4A125VOR250V C123 C801 R501
AFC
COL Q501
W819 B503 R506 D506 Q502 C501
R54
2
D504
B+ GND 25V ABL HS501 C514 W844
CP
C503 D502 W821 R806
S1 802 B
01B
D802 SW105
D803
8V
12V FB401
R508 R520 C509 R514
W804 Q803 D508 D503 Q801
D801
C511
D410 D405
W012 C402 R402 W010 C448
D512
R509
C506
Q802
J8 01
R403
R4 29
W040 W011 C434 D411
R421
R802_1
SW104
Q504 L402 W809 C444_3 W831 W897 W826 W803 C518 C517
R805_1
R803_1
01 P8 C
CP806_1
W031 R807_1 R804_1
S1
01A 2A
C8
SW103
C437
W041
19
L801
C403
W002 CP80
D505 T502 D528 W812 D513 W829
C519 W828 R517_1
R512
W896 D407 C407 R409 TP402 C422_1 D619 R401 Q401 C443_1
W013
D510
W840 W036 W034 W032 W845 W016 W015 W035
SW102 R1007
W014
C5
21
R107
C118
R513
W835
C101 D604
D404
W814
C417
SW101
L101
W832
R408
R416 R424
HS402 R427 R423 R417 W009 R413 CP401
D514 R108 D522 R519 Q603 R527 Q507 R648 C638 C627 R635 C635 C625 C616 D601 C622 R623 D607 C515
IC199
C119
C126
C418 W007
R518
C115
R1003 C127 C120 C136
R117 Q609 W058
W056
W818
IC401
W004 W003 W008
AGC
W006
W027
W047 W051 W030 D001 R641
R629
Q604 R624 R606 W025 W044 W026 C606 L601 C602
C 63 4
C427 R415 D403
W001 R418
C414
C128 W057
C122 C139 C141 W806
T401
R448_1 HS401
W042
J702 C1006
W037
C1002_1
C124
W019
W018
W022
C624
C629_1
R515
R422
W824
Q606 C619
R446 C440 D408 Q402 R445
C130 R630 W049
R139 W059 W834 Q610 R627 R631 R146_1
W842 C1001
R410
CP601 W046 W005
D612
D611
X602 D602 C639
IC1001 J703
CF603 C446 Q605 W017 C645 C630 CF604
C642
W050
W060
R001 D406_1
C435
R614
W043
D605 R002
C604
C612
C1005
L607
D610 C607 C603
W805
C1004 C1003
CD101B
R616
R704
C004 C002
C003
C640 C613_2 C637
C632 C626 C628
W052 R110 W023 W024 W817 W823 D606
C605
CD101A R701 C647
W820
C621
C601
CF601_1
TU001
F-1
F-2
F-3
R703 R702 R126 R128 R115 R1008 R143 R112 R101 R1005 R1004 R1001 R815 R811 C809 R809 R813 R132 C808 R113 R814 R106 R105 R529 R633 C810 R816 R118 IC101 R133 R127 C114 C113 R419 R420 C138 R646 R642 R638 C513 R141 R142 R111 R125 R123 R122 R102 C140 R104 R120 R134 R130 R124 R601 C121 R625 17 R129 33 R628 R632 R639 R622 R615 49 R121 R103 R617 R619 R602 R605 1 R626
IC 60 1
C623 C655 R612
R609
PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
C618
F-4
A
B
C
D
E
F
ACCESSORY
G
H
MICON/TUNER SCHEMATIC DIAGRAM
8
(MAIN PCB)
TU001
15
8
TECC1040PG32E 3 ADRES 1 AGC 7 BPL 5 SDA 9 BTL 4 SCL 6 V.S TM101 RC-DW010
13 12
11 IF
10
14
0 NC
0 NC
8
NC
1.3 NC 6.2 NC
0
4.9
4.8
4.8
2
W835
R128
560
30.0
4.6 C003 50V 4.7 KA
SW105 SKHVBED010
SW104 SKHVBED010
SW103 SKHVBED010
SW102 SKHVBED010 CH UP
SW101 SKHVBED010
7
POWER
0.022 F
MTZJ30B
R101
560 VOL DOWN
R126 2.7K VOL UP
6.3V 470 YK
CH DOWN
FROM/TO CHROMA AGC GND IF
7
C004
OS101 PIC-37143SY 1 Vout 3 GND
2 B+
D001
C002
TUNER+5V R141 R142 270 270 FROM DEFLECTION/CRT R002 18K 1/2W R001 +B 18K 1/2W X-RAY FROM POWER POWER DEGAUSS R117 MICON IC IC101 OEC7073A R111 47K R125 AUDIO MUTE EXT MUTE STANDBY_H H_CTL PROTECT_H 42 1 5.2 0 41 2 R118 47K 3.2 47K
4.8
4.9
0 C123 25V 10 KA
6
R143 47
6
47K
TO SOUND/AV AUDIO_MUTE FROM/TO CHROMA H_CTL PROTECT_H I2C_OFF AFT SYNC HD 3 VD R123 4.7K R122 4.7K R121 4.7K R120 4.7K R102 R103 R104 R124 4.7K 4 C136 OSD_B 0.1 F C139 OSD_G 0.1 F C141 OSD_R 0.1 F OSD_BLK 680 680 680
0.8 5.2 5.2
I2C_OFF SYNC
40
3
0 0 NC 2.69
R110 1K 1/4W C140 R139 100 1/4W 820P W
5
R112 2.2K R113 2.2K R115 47K R132 47K
39
4
AFT KEY1 KEY2 X-RAY REMOCON ON TIMER X-RAY_TEST AV2 AV1 DEGAUSS P.FAIL
H.SYNC V.SYNC BLUE B GREEN G RED R BLANK CLOCK CONT SDA1 SCL1
38
5
5 5.2 4.8 4.8 4.8 5 4.98 4.7 D604 4.7 D607 MTZJ5.6B 5.2 2.8 5.2 3.6 C138 0.9 2.26 R130 1.05 C126 C127 0.01 B 10V 330 YK 1K C120 0.001 CH R134 560P W 470 2 R129 1M C124 0.01 B C115 50V 0.1 KA C130 MTZJ5.6B
5
0 NC 0 NC 0 NC 0 NC 0 NC
10
11
32
4
33
34
9
W845 4.95
35
8
2.27
36
7
5
37
6
4.99
4
R108 SDA 100 R107 SCL 100 CLOCK_CONT POWER FSC
12
13
14
POWER FSC IN RESET CVIN V.HOLD HLF FILT VCC
15
28
W840 C113 2.7K L101 12P CH C114 12P CH
4.98
29
30
31
0.01 B 16 27 0 3.3uH R127 W806 OSC2 OSC1 CNVSS Xin Xout VSS RESET
17
1
18
W814
25
0 0
26
3
0
3
C121
220P B C122 50V 1 KA R105 R106 4.7K 4.7K AT+5VBACKUP AT+5V
19
4.98 NC 0
24
470P B R133 1K
20
21
22 5.2 C128
23
0.1 F
C119
0.001 4.8 5 SDA 4.8 6 SCL 0 7 MODE
C101 CH 4.9 8 VCC MEMORY IC IC199 S-24C02BDP-1A
Y_VIDEO
2
6.3V
C118 330 YK
2
VSS
E2
4 0 0
3 0
E1 2
0 PCB010 TMA525
E0 1
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
DEFLECTION SIGNAL TUNER VIDEO SIGNAL R.SIGNAL G.SIGNAL B.SIGNAL
G H
1
A
B
C
D
E
F
G-1
G-2
A
B
C
D
E
F
G
H
CHROMA SCHEMATIC DIAGRAM
8
FROM POWER UNREG+12V W818 6 REG Q603 KTC3203_Y 8.8 REG Q604 KTC3203_Y REG Q605 R632 220 KTC3203_Y 7.2 7.2 5.5 5.5 REG Q606 KTC3203_Y 11.3 8.5 16V 47 YK D602 7.9 MTZJ8.2B 50V 1 KA C625 4.9 5.5 FROM SOUND/AV VIDEO_IN 16V 47 YK R623 120 1/4W R629 3W 33
(MAIN PCB)
8
7
4.9
7
16V 47 YK C645
KA
16V 47 YK
R639
0.022 B
KA
R628
C630
C624
C622
C619
R635
100
1.5K
C647
100
50V 2.2
1SS133
50V 1
D601
R638
R633
C635
8.2K
22K
MTZJ6.8B
NA
X602 15P CH 3.579545MHz
C638 R642
50V 1 YK
C629_1
50V 1
7
C627
CF603 SFSRA4M50CF00-A0
D606
50V 10 D605 11E1-EIC
C616
R646
6
R616 R612 1K 1.70 49 5.65 C634 FROM/TO SOUND/AV 5 AUDIO_OUT C642 AUDIO_IN 50V 1 KA C655 C604 C623 50V 1 KA 3.08 0.0033 Y 54 3.15 3.2 L607 15uH C632 50V 0.1 KA 0 0 R624 100P CH 47 C606 R606 10K C602 0.01 B 60 2.27 C626 0.01 B C628 50V 0.22 KA CF601_1 TSF5229P3 IN GNDOUTOUT 1 2 3 4 L601 IF 0.56uH W823 AFT 63V 1 MKT C613_2 0.01 B C640 2.86 1.51 1.51 2.86 61 IF AGC FILTER2 IF AGC FILTER1 VIF IN (1) VIF Vcc VIF Vcc V OUT VIF APC FILTER 2.19 4.5 FM DIRECT OUT VIF VCO F/B VIF GND VIF GND VIF VIDEO OUT RF AGC OUT 100P CH 51 2.38 2.5 2.21 50 QIF OUT AUDIO OUT AUDIO BYPASS EXT AUDIO IN 8.63 48 47 10M 0 NC 46 NC 0
47K
KA
6
VIDEO/CHROMA GND
CHROMA APC FILTER
VIDEO/CHROMA GND
NC 7.96 2.55 8.7 2.8 4.7 1.8 2.5 45 44 43 42 41 40 39 38 VIDEO CHROMA Vcc VIDEO CHROMA Vcc NC VREG Vcc fsc OUT 2 EXT C in Hi Vcc TV/Y IN
0 37
0 3.1 3.18 36 35 34
5.6 3.6 32 4.92 3.2 4.8 4.7 0
1K
33
Y SW OUT MCU RESET fsc OUT 1
31
52
47 8.7V REG OUT 48 LIMITER IN 49 P.Con5.7V REG
34 X'TAL 33 ACL/ABCL 32 AT5.7V REG OUT
53
POWER ON CONT SCL SDA CLOCK CONT
5
GND
27
28
29
30
RESET
0.0068 Y
55
26
CF604 TPSRA4M50C00-A0
4.7 4.8 2.4 2.8 2.8 2.8 4.9 4.8 SYNC C639 0.01 B 7.9 0 W834 11 12 2.2K 13 HD 8 H.CTL Q609 KTC3198 OSD_G 6 3.6 OSD_B OSD_R VD R648 1M OSD_BLK 5 6 R146_1 220 1/4W H.CTL Q610 KTC3198 5.69 W842
5
56
CHROMA IC IC601 M61250FP
R622
57
R615 FROM/TO MICON/TUNER RESET R609 Y_VIDEO AT+5V AT+5VBACKUP C618 220 50V 0.47 KA C605 22P CH 470
68
FAST BLK R IN G IN
58
59
64 VIF IN (2) 1 V RAMP CAP 2 AFT OUT V RAMP FEEDBACK
B IN 17 H VCO F/B 16 B OUT V PULSE OUT INV FBP OUT STRAT UP Vcc AFC FILTER DEF GND DEF GND INTELLIGENT MONI R OUT G OUT NC
21
22
23
24
25
CLOCK_CONT
FROM MICON/TUNER H_CTL
62
19
4
20
TUNER+5V AGC
4
PROTECT_H FROM/TO DEFLECTION/CRT V_OUT ABCL V_FEEDBACK GND H_OUT
63
FBP IN
H OUT
64
R626
1 2 3 4.62 2.63 4.8
4 4.8
5 4.2
6 2.7
7
8 3.45 0
9 0
10 6 R601 22K
11 6
12 8
13
0 NC
14 3.6
15 3.6
16
17 3.6
18 4.8
9 H_SYNC
50V 1 KA
22K 1/4W
6.3V 100 YK
3
MTZJ12B
MTZJ12B
W817 0.01 B
R627 R630 R631 2.2K 2.2K MTZJ12B R617 D612
100 B.OUT 100 G.OUT 100 R.OUT 1K CLAMP
3
0.01 B
0.01 B
C637
10V 1000 YK D610
R641
W820
C607
C601
R605
4.7K
C612
R614
D611 2.2K
C621
C603
R602
1K
R619
GND HD POWER 10 OSD_B OSD_BLK OSD_G VD OSD_R SYNC I2C_OFF SDA SCL FSC CLOCK_CONT
R625
2
TEST POINT CP601 00_8283_0611_00_000 VIDEO INT.MONI IIC_OFF SDA SCL GND 6 5 4 3 2 1 PCB010 TMA525
2
1 NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE. A B
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED ATTENTION: LES PIECES REPAREES PAR UN ETANT WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST DANGEREUSES AN POINT DE VUE SECURITE WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL. N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
TUNER VIDEO SIGNAL
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY ARE
1
R.SIGNAL G.SIGNAL B.SIGNAL
G
LUMINANCE SIGNAL AUDIO SIGNAL DEFLECTION SIGNAL
H
C
D
E
F
G-3
G-4
A
B
C
D
E
F
G
H
POWER SCHEMATIC DIAGRAM
(MAIN PCB)
8
CAUTION: ATTENTION:
4A 125V
8
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501) FUSE. POUR UNE PROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 4A 125V (F501).
TO MICON DEGAUSS
TO SOUND/AV GND W828 D505 16V 470 YK SB290S R529 47K C518 500V 470P B C519 R517_1 SOUND+B 1.2 1W
7
7
SOUND_GND
DEGAUSS COIL L503 8R140030 1 2 1
3.3M 1/2W +-10%
TO DEFLECTION/CRT D510 RU2AM-EIC 160V 100 MHE UNREG+12V W824 +B
CP502 A1561WV2-2P W821 W836
TH501 R501 ZPB45BL3R0A 1N4005-EIC 2 L501_1 1R5A102F20 5 1 4 3 NC 1N4005-EIC 5.6 5W 0.22 1W R510 1.2M 1/4W D502 R514 C517 2KV 470P RR
C521
6
2
R500
6
GND
D501
1.2M 1/4W
R511
C502 1N4005-EIC 500V 0.001 B B
D513 SB290S C515 16V 1000 YK
275V 0.1 PHE840
500V 0.001
200V 220 YK
D503
C503
1N4005-EIC
D504
5
4A 125V F501 51MS040LCC
MTZJ18B
C526_1
C505
D509
T502
81290904 10.0 10
5
233004-MB000 FH501 FH502 EYF-52BC EYF-52BC
1.7 NC 144.0 NC 10.3 2KV 680P RR W819 6.6 Q501 STP5NC50FP G 4.8 10.3 R508 220 1W 1SS133 C509 D512 1SS133 0.047 M 12K 1/4W D508
8 7 6 5 4 3 2
11 NC 0 12 TO CHROMA 13 14 15 16 17 132.3 0 0 W829 UNREG+12V
4
BLADE WIDE
AC120V_60Hz CD501_2 0R414903 BLACK WHITE
S501A
W804
4
11.3 NC
S501B
250V 0.0047
KX
C514
C506
144.0 D 0.1 S
18 NC
B503 R542 W5RH3.5X5X1.0
W844
R520
R509
220
C511 50V 1 KA MTZJ18B D506
3
0.68 1W
BUFFER Q502 KTC3198 4.8
R506
2.7K
3
0.1 0.0082 M C501
HS501 0 763WSAA013
R512
680 R513
2
2.2K
FEED BACK SWITCHING 9.5 Q507 KTC3198-AT (Y,GR) 6.0 5.5
120K 1/2W
0.001 Y
C513
R515
1SS133 D522
1SS133
D514
11.5 4
10.5 1
R519 1.2K
2
3
MTZJ5.6B
D528
FEED BACK 0.1 Q504 LTV-817M-VB
2
5.6K +-1%
R518
150
9.5
R527
PCB010 TMA525
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
1 NOTE: THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE. D E
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY ARE ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
A
B
C
F
G
H
G-5
G-6
A
FROM CHROMA
B
C
D
E
CP802A 9253_010_000_000 GND GND CLAMP CLAMP G.OUT G.OUT R.OUT R.OUT B.OUT B.OUT NC HEATER GND NC 180V NC HEATER GND NC 180V CD802 6032014 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 CP802B 9253_010_000_000 GND GND CLAMP CLAMP G.OUT G.OUT R.OUT R.OUT B.OUT B.OUT NC HEATER GND NC 180V NC HEATER GND
F
G
H
DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB)
V-OUT IC IC401 AN5522
THERMAL PROTECTION PUMP UP AMP
8
CLAMP G.OUT R.OUT B.OUT
8
1SS133
4.7K 1SS133
1 3.5
2 25.0 C414
3 35V100 YK 2.0
4 0
5 12.0
6 25.0
7 3.5
D801
R811 D802
R809
1
1 220uH L801
7
14 R423 100 1/4W R424 470
R814
D803
CD801_1 0
CP801 TBS-X01X-A1
RED OUT Q801 2SC1473A 3.2
GREEN OUT Q802 2SC1473A 3.2
BLUE OUT Q803 2SC1473A 3.2
1SS133
4.7K
4.7K
NC 180V
100.6 2.7
98.4 2.7
95.4 2.7
7
18
D403 19 11E1-EIC 100V 0.15 TF R410 330 1/2W C422_1
V801 A34JXV70X53N45 9 10 8 6 11
R418 10K 1/4W R419 470 22K 1/4W
R420
25V 470 YK 50V 10 YK
470P B R813
470P B R815
470P B R816
C808
C809
R417
1 1/2W
C418
3.3K
C417
R415 1.8K 1/2W 50V 10 YK C427
R416
5 7 1
2.2 1/2W
2.2K 1/2W
R413
6
R422
HS401 763WSAA013
TO DY 5 4 3 20 21 22
C810
R G B
330
330
330
6
100V 22 YK
AU02A-EIC
D411
C434
R429 2.7
1W
NC
2 1 1/4W
2.7K 1/4W
15K
R409
+-1%
R803_1
R805_1
2.7K
CP401 A1561WV2-A5P
15K 1W
R807_1
R802_1
5
TO MICON/TUNER X-RAY
R401 27K +-1%
R804_1
R806
27K
2.7K 1/4W
10K +-1%
1W
MTZJ5.1B
15K 1W
D619
R408
5
+B
470 1/2W
FROM/TO CHROMA
R446
GND
W832
V_OUT ABCL H_OUT H_SYNC
16 17
W809
4
V_FEEDBACK
H.DRIVE Q402 2SC1627_Y 27.0
C437
NC 2 1
6
250V 0.47 PMS
3
4
330P B
C801
15
T401 ETH09K14BZ
W896
4
FB401 130.0 3214029F HV FOCUS FOCUS SCREEN CP806_1 0 1 SCREEN 2KV 0.001 B C819 COL
W831 1.25KV 0.0047 MPP 1
500V 0.0012 B
C443_1
C440
130.0
100 1/4W W826
C446
0 0
C444_3
H.OUTPUT Q401 2SD2627LS-CBC11 W812
1.25KV 470P MPP
0
50V 22 YK
0.3
132.5 132.5 48.0 7.0
FROM POWER GND
R427
6 2
VIDEO B+
F S GND 0 11 ABL 7 4.3
HS402 763WSAA013 L402 18uH R402 C402 12 1/2W 200V 0.01 PP
W897
3
R403 22K 1/4W
0 NC 25.0
8 4 3
E8
4
6.4
MTZJ6.2B 1SS133 D407 D404
3
5 NC
0
5
1
E25
0
6
0
F
E12
GND 8
0
101.6
7
GND
8
+B
9
AFC 9 HEA 10 TER
96.4
3
0 99.6
J801 ISMS01S
D406_1 UNREG+12V 1SS133
56P CH
C407
D405
D410
2
AU02A-EIC
AU02A-EIC
2
PCB110 TCA384
R448_1 820 2W 200V 22 MHE 35V 470 YK
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
R445
100V 0.1 MHE 220K 1/4W D408
C448
R421
C403
PCB010 TMA525
C435
1
180K 1/4W
11E1-EIC
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY ARE
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
R.SIGNAL
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THE RESISTOR MARKED F IS FUSE RESISTOR. THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
G.SIGNAL B.SIGNAL DEFLECTION SIGNAL
H
1
A
B
C
D
E
F
G
G-7
G-8
A
B
C
D
E
F
G
H
SOUND/AV SCHEMATIC DIAGRAM
8
(MAIN PCB)
8
7
7
TO CHROMA 25 AUDIO_IN AUDIO 2 26 VIDEO_IN VIDEO 2 68 1/4W R702 R701 47K R703 820 R704 10
J703 AV1-09D-4 H E 2 1
(FRONT)
HEADPHONE_JACK J1001 HSJ1403-01-010 2 C1006 R1007 YK 12 1/2W 3 1 25V 47
A_IN
H
E 1
6
GND
2
V_IN
6
J702 AV1-09D-3
FROM POWER SOUND_GND
5
SOUND+B GND 5
24
5
8.2 6
3.5 7
0 8
3.4 SOUND AMP IC
AN7511
IC1001
+
FROM MICON/TUNER R1001 AUDIO_MUTE
-
1 CD101A CH012002 1 1 2
SPEAKER
4 5.1 C1002_1 10V 470 YK R1003 68K
3 0
2 0.3
1 3.9
CD101B CH012003
SP1001 S08F21 8 OHM
4
POWER
47K
4
R1008
FROM CHROMA
3
AUDIO_OUT
68K
0.0015 B
C1004
50V
25V 10 KA
R1004
R1005
C1003
KA
W803
C1005
100K
56K
1
W805
C1001 50V 0.1 KA
23
3
2
2
PCB010 TMA525
NOTE: THE DC VOLTAGE AT EACH PART WAS MEASURED
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
TUNER VIDEO SIGNAL AUDIO SIGNAL
1
A
B
C
D
E
F
G
H
G-9
G-10
WAVEFORMS
MICON/TUNER
1 200mV 5ms/div
6 0.5V 20µs/div
11 1V 20µs/div
2 0.5V 20µs/div
7 200mV 20µs/div
12 1V 20µs/div
3 200mV 20µs/div
8
20V 20µs/div
13 1V 20µs/div
DEFLECTION/CRT
4 200mV 5ms/div
9
200mV 20µs/div
14 0.5V 5ms/div
CHROMA
5 0.5V 2ms/div
10 0.5V 5ms/div
15 20V 20µs/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-1
WAVEFORMS
16 2V 20µs/div
21 50V 20µs/div
26 500mV 20µs/div
17 200V 20µs/div
22 50V 20µs/div
SOUND/AV
18 10V 5ms/div
23 0.5V 1ms/div
19 10V 5ms/div
24 1V 1ms/div
20 50V 20µs/div
25 200mV 500µs/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-2
MECHANICAL EXPLODED VIEW
202 108 202 202 111
202 201 J801
107 201 201 L503 FB401 205 V801 201 206 106 TU001
110
PCB110 (CRT PCB)
202
204
PCB010 (MAIN PCB) 105
203 104
203
109
102
112 103 101
I-1
SP1001
MECHANICAL REPLACEMENT PARTS LIST
REF. NO.
101 102 103 104 105 106 107 108 109 110 111 112 201 202 203 204 205 206 -------------------
PART NO.
A3L122C720 735WPA0396 701WPJB679 713WPAA048 735WPAA417 723000B319 702WPAA134 722552A020 7230006818
DESCRIPTION
CABINET,FRONT ASS'Y SPEAKER,HOLDER CABINET,FRONT GUIDE,REMOCON BUTTON,FRAME FILM,DECORATION CABINET,BACK SHEET,RATING SHEET,CAUTION
741WUA0019 SPRING,EARTH 7220001119 SHEET,CSA WARNING 722000A023 SHEET,HWC 8121J50B54 8117540A64 8110630A04 8109I30A04 8109630802 8109I30604 JB5K0200 J3L10502 J3L21101 791WHA0023 A3L211C975 792WHAA018 792WHAA019 793WCDB256 7230007398 SCREW,TAPPING(B0) SCREW,TAPPING(B0) SCREW,TAP TITE(P) SCREW,TAP TITE(B) SCREW,TAP TITE(B) SCREW,TAP TITE(B) POLYBAG,INSTRUCTION WARRANTY SHEET INSTRUCTION BOOK LAMIFILM BAG INSTRUCTION BOOK KIT PACKAGE,BOTTOM PACKAGE,TOP GIFT BOX SECURITY TAG GW20 TRUSS BRAZIER WH7 BRAZIER WH7 5x28 4x16 3x10 3x10 3x8 3x6
J1-1
ELECTRICAL REPLACEMENT PARTS LIST
REF. NO.
! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! R401 R408 R409 R429 R448 R500 R501 R508 R509 R514 R515 R517 R518 R519 R542 R629 R803 R805 R807 C402 C403 C414 C418 C434 C437 C443 C444
PART NO.
R4X5T6273F R4X5T6103F R4X5T6273F R655812R7J R3X18A821J R0G3K2335K R5Y2CD5R6J R3X181221J R001T6221J R63581R22J R002T2124J R3X1811R2J R4X5T6562F R001T6122J R3X181R68J R3X28B330J R3X181153J R3X181153J R3X181153J P3N1F2103J E02LT4471M E02LT4101M E02LT3471M E02LT8220M P4J7F3474J P4N8FJ472H P4N8FJ471J C0PLRR7Q2K E02LT5220M E5EZ0C220M C0JTB0513K P2472B104M CB3930MQ3M C0PLRR7U2K E02LT2102M C0PLRR7Q2K E02LT2471M E5EZFB101M E02LFC221M CQG0CH412J C0JBB0713K D97U03001B D2WT011E10 D97U06R21B D2WTAU02A0 D1VT001330 D1VT001330 D2WT011E10 D2WTAU02A0 D2WTAU02A0 D2WXN40050 D2WXN40050 D2WXN40050 D2WXN40050 D2WXB290S0 D97U01801B D1VT001330 D97U01801B D2WXRU2AM0 D1VT001330 D2WXB290S0 D1VT001330 D1VT001330 D97U05R61B D1VT001330 D97U08R21B D97U05R61B D2WT011E10 D97U06R81B D97U05R61B D97U01201B D97U01201B D97U01201B D97U05R11B D1VT001330
DESCRIPTION RESISTORS
R,METAL R,METAL R,METAL R,FUSE R,METAL OXIDE RC R,CEMENT R,METAL OXIDE RC R,FUSE RC R,METAL OXIDE R,METAL RC R,METAL OXIDE R,METAL OXIDE R,METAL OXIDE R,METAL OXIDE R,METAL OXIDE 27K OHM 1/6W 10K OHM 1/6W 27K OHM 1/6W 2.7 OHM 1W 820 OHM 2W 3.3M OHM 1/2W 5.6 OHM 5W 220 OHM 1W 220 OHM 1/6W 0.22 OHM 1W 120K OHM 1/2W 1.2 OHM 1W 5.6K OHM 1/6W 1.2K OHM 1/6W 0.68 OHM 1W 33 OHM 3W 15K OHM 1W 15K OHM 1W 15K OHM 1W 0.01 UF 200V 470 UF 35V 100 UF 35V 470 UF 25V 22 UF 100V 0.47 UF 250V PMS 0.0047UF 1.25KV 470 PF 1.25KV or 470 PF 2KV RR 22 UF 50V 22 UF 200V 0.001 UF 500V B 0.1 UF 275V PHE840 0.0047UF 250V 680 PF 2KV RR 1000 UF 16V 470 PF 2KV RR 470 UF 16V 100 UF 160V 220 UF 200V 100 PF 50V CH 0.001 UF 2KV B
REF. NO.
D802 D803 IC101 IC199 ! IC401 IC601 IC1001 Q401 Q402 Q501 Q502 Q504 Q507 Q603 Q604 Q605 Q606 Q609 Q610 ! Q801 ! Q802 ! Q803 L101 L402 ! L501 ! L503 L601 L607 L801 T401 ! T502 J702 J703 ! J801 J1001 SW101 SW102 SW103 SW104 SW105 PCB010 PCB110 B503 ! CD501 CF601 CF603 CF604 ! CP401 ! CP502 CP601 CP801 CD101A CD101B CP802A CP802B ! F501 ! FB401 FH501 FH502 OS101 S101 SP1001 ! TH501 TM101 ! TU001 ! V801 X602 ! ! ! ! !
PART NO.
DESCRIPTION DIODES
1SS133T-77 1SS133T-77 OEC7073A S-24C02BDP-1A AN5522 M61250FP AN7511
D1VT001330 DIODE,SILICON D1VT001330 DIODE,SILICON
ICS
I56F07073A A3L101C015 I01TD55220 I06FC61250 I01DP75110 TD30026270 TC5T01627Y TJXG5NC500 TCATC31980 0002E00610 TCATC31980 TCAT032034 TCAT032034 TCAT032034 TCAT032034 TCATC31980 TCATC31980 TCKT1473A0 TCKT1473A0 TCKT1473A0 021LA63R3K 02186G180M 029T00A7M1 028R140030 021LA6R56M 021LA6150K 021673221K 045009003J 0481290904 060Q401077 060Q401076 066F120018 0602121012 0504201T31 0504201T31 0504201T31 0504201T31 0504201T31 IC IC IC IC IC
TRANSISTORS
TRANSISTOR SILICON TRANSISTOR SILICON FET TRANSISTOR,SILICON PHOTO COUPLER TRANSISTOR,SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR, SILICON TRANSISTOR,SILICON TRANSISTOR,SILICON TRANSISTOR SILICON TRANSISTOR SILICON TRANSISTOR SILICON COIL COIL COIL,LINE FILTER COIL,DEGAUSS COIL COIL COIL TRANS,HORIZONTAL DRIVE TRANSFORMER,SWITCHING 2SD2627LS-CBC11 2SC1627_Y(TPE2) STP5NC50FP KTC3198-AT(Y,GR) LTV-817M-VB KTC3198-AT(Y,GR) KTC3203_Y-AT KTC3203_Y-AT KTC3203_Y-AT KTC3203_Y-AT KTC3198-AT(Y,GR) KTC3198-AT(Y,GR) 2SC1473A-TA-(RQ) 2SC1473A-TA-(RQ) 2SC1473A-TA-(RQ) 3.3 UH 18 UH 1R5A102F20 8R140030 0.56 UH 15 UH 220 UH ETH09K14BZ 81290904 AV1-09D-3 AV1-09D-4 ISMS01S HSJ1403-01-010 SKHVBED010 SKHVBED010 SKHVBED010 SKHVBED010 SKHVBED010 TMA525A TCA384A W5RH3.5X5X1.0 0R414903 TSF5229P3 SFSRA4M50CF00-A0 TPSRA4M50C00-A0 A1561WV2-A5P A1561WV2-2P 00_8283_0611_00_000 TBS-X01X-A1 CH012002 CH012003 9253_010_000_000 or B2013H02-10P 9253_010_000_000 or B2013H02-10P 51MS040LCC 3214029F EYF-52BC EYF-52BC PIC-37143SY AWG26 10C BLACK 320MM S08F21 ZPB45BL3R0A RC-DW010 TECC1040PG32E A34JXV70X53N45 HC-49/C
CAPACITORS
! ! ! ! ! CPP CE CE CE CE CMPP CMPP CMPP CC CE CE CC CMP CC CC CE CC CE CE CE CC CC
COILS &TRANSFORMERS
C446 C448 C503 C505 C506 C514 ! C515 C517 ! C519 C521 ! C526 C634 C819 D001 D403 D404 D405 D406 D407 D408 D410 D411 D501 D502 D503 D504 D505 D506 D508 D509 D510 D512 D513 D514 D522 D528 D601 D602 D604 D605 D606 D607 D610 D611 D612 D619 D801
! ! ! !
JACKS
RCA JACK RCA JACK SOCKET,CRT JACK,RCA 3.5
SWITCHES
SWITCH,TACT SWITCH,TACT SWITCH,TACT SWITCH,TACT SWITCH,TACT
DIODES
DIODE,ZENER DIODE SILICON DIODE,ZENER DIODE SILICON DIODE,SILICON DIODE,SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE SILICON DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE SILICON DIODE,SILICON DIODE SILICON DIODE,SILICON DIODE,SILICON DIODE,ZENER DIODE,SILICON DIODE,ZENER DIODE,ZENER DIODE SILICON DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,ZENER DIODE,SILICON MTZJ30B T-77 11E1-EIC MTZJ6.2B T-77 AU02A-EIC 1SS133T-77 1SS133T-77 11E1-EIC AU02A-EIC AU02A-EIC 1N4005-EIC 1N4005-EIC 1N4005-EIC 1N4005-EIC SB290S MTZJ18B T-77 1SS133T-77 MTZJ18B T-77 RU2AM-EIC 1SS133T-77 SB290S 1SS133T-77 1SS133T-77 MTZJ5.6B T-77 1SS133T-77 MTZJ8.2B T-77 MTZJ5.6B T-77 11E1-EIC MTZJ6.8B T-77 MTZJ5.6B T-77 MTZJ12B T-77 MTZJ12B T-77 MTZJ12B T-77 MTZJ5.1B T-77 1SS133T-77
P.C.BOARD ASSEMBLIES
A3L122C010 PCB ASS'Y A3L117C110 PCB ASS'Y
!
MISCELLANEOUS
024HT03553 120R414903 1029045R7G 1012T4R520 1012T4R519 069S450089 069S420110 069E260659 069W010030 06CH012002 06CH012003 067N010039 067U010049 067N010039 067U010049 081PC04004 043214029F 06710T0006 06710T0006 077Q037003 WHL6032014 070Y132018 DF5EL3R0A0 076N0DW010 0145K00056 098Y1404B9 100CT3R505 CORE,BEADS CORD AC BUSH FILTER,SAW FILTER,CERAMIC FILTER,CERAMIC TRAP CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CONNECTOR PCB SIDE CORD CONNECTOR CORD CONNECTOR WIRE HOLDER WIRE HOLDER WIRE HOLDER WIRE HOLDER FUSE TRANSFORMER FLYBACK HOLDER,FUSE HOLDER,FUSE REMOTE RECEIVER FLAT CABLE SPEAKER DEGAUSS ELEMENT TRANSMITTER TUNER,VHF-UHF CRT W/DY CRYSTAL
! ! ! ! !
! ! !
!
J2-1
ELECTRICAL REPLACEMENT PARTS LIST
RESISTOR RC................... CARBON RESISTOR CAPACITORS CC................... CERAMIC CAPACITOR CE................... ALUMI ELECTROLYTIC CAPACITOR CP................... POLYESTER CAPACITOR CPP.................. POLYPROPYLENE CAPACITOR CPL.................. PLASTIC CAPACITOR CMP................. METAL POLYESTER CAPACITOR CMPL............... METAL PLASTIC CAPACITOR CMPP............... METAL POLYPROPYLENE CAPACITOR
J2-2
SPEC.NO. O/R NO.
M3L1-22C K223001
DBTV1301
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL 1 MFR'S VERSION I
MFR'S VERSION C I
PCB010 TMX494A TMX494B
TUNER NJH3022U268 TECC1040PG32D
Design and specifications are subject to change without notice.
ELECTRICAL ADJUSTMENTS
(MFR'S VERSION I) 2. BASIC ADJUSTMENTS
2-1: RF AGC DELAY 1. 2. 3. 4. Place the set with Aging Test for more than 15 minutes. Receive the VHF HIGH (63dB). Connect the digital voltmeter to R606. Activate the adjustment mode display of Fig. 1-1 and press the channel button (02) on the remote control to select "RF AGC DELAY". 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.7 ± 0.05V.
ELECTRICAL REPLACEMENT PARTS LIST PCB VERSION UP
MFR'S VERSION C REF. NO. PART NO. DESCRIPTION PART NO. MFR'S VERSION I DESCRIPTION MAIN PCB ASS'Y (VERSION I) TMX494B
PCB010 A3J804A010
MAIN PCB ASS'Y (VERSION C) TMX494A A3J804A010
MAIN PCB's are interchangeable.
Change of TUNER
MFR'S VERSION C REF. NO. ! TU001 R622 PART NO. 0145W00052 R903N8121J DESCRIPTION TUNER,VHF-UHF RC NJH3022U268 120 OHM 1/8W PART NO. 0145K00055 R903N8271J MFR'S VERSION I DESCRIPTION TUNER,VHF-UHF RC TECC1040PG32D 270 OHM 1/8W
PCB010 A3J804A010
MAIN PCB ASS'Y (VERSION C) TMX494A A3J804A010
MAIN PCB ASS'Y (VERSION I) TMX494B
MAIN PCB's are interchangeable.
SPEC.NO. O/R NO.
M3J8-04A K163008
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
6. AVOID AN X-RAY
Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
7. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
1. Unplug the plug from the AC outlet. 2. Remove the antenna terminal on TV and turn on the TV. 3. Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1]. 4. If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal Earphone jack
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
IMPORTANT
Inferior silicon grease can damage IC's and transistors. When replacing an IC's or transistors, use only specified silicon grease (YG6260M). Remove all old silicon before applying new silicon.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING ...................................................................................................... A1-1 HOW TO ORDER PARTS ........................................................................................................................... A1-1 IMPORTANT ................................................................................................................................................ A1-1 CONTENTS ................................................................................................................................................. A2-1 GENERAL SPECIFICATIONS .................................................................................................................... A3-1~A3-4 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP........................................................................................................ B1-1 2. REMOVAL AND INSTALLATION OF FALT PACKAGE IC.......................................................... B2-1, B2-2 SERVICE MODE LIST ................................................................................................................................. C-1 CONFIRMATION OF HOURS USED .......................................................................................................... C-1 WHAN REPLACING EEPROM (MEMORY) IC ........................................................................................... C-1 ELECTRICAL ADJUSTMENTS .................................................................................................................. D-1~D-4 BLOCK DIAGRAM ...................................................................................................................................... E-1, E-2 PRINTED CIRCUIT BOARDS MAIN/CRT .......................................................................................................................................... F-1~F-4 SCHEMATIC DIAGRAMS MICON/TUNER .................................................................................................................................. G-1, G-2 CHROMA ........................................................................................................................................... G-3, G-4 TV POWER ........................................................................................................................................ G-5, G-6 DEFLECTION/CRT ............................................................................................................................ G-7, G-8 SOUND/AV ........................................................................................................................................ G-9, G-10 WAVEFORMS ............................................................................................................................................. H-1, H-2 MECHANICAL EXPLODED VIEW .............................................................................................................. I-1 MECHANICAL REPLACEMENT PARTS LIST .......................................................................................... J1-1 ELECTRICAL REPLACEMENT PARTS LIST ............................................................................................ J2-1, J2-2
A2-1
GENERAL SPECIFICATIONS
G-1 TV System CRT CRT Size / Visual Size CRT Type Deflection Magnetic Field BV/BH 13 inch / 335.4mmV Normal 90 degree +0.45G/0.18G NTSC 1Speaker Bottom 3 Inch 8 ohm 1.0 W 0.8 W No US System M 1Tuner Others F-Synth VHF/UHF 75 ohm 2 - 69, 4A, A-5 - A-1, A - I, J - W, W+1 - W+84 45.75MHz 41.25MHz 4.50MHz No No Yes 120V AC 60Hz at AC Stand by (at AC) Per Year Power Fuse Safety Radiation X-Radiation Operation Storage 54 W at AC 120 V 60 Hz 5 W at AC 120 V 60 Hz -kWh/Year Yes UL/CSA FCC /DOC DHHS/HWC +5oC ~ +40oC -20oC ~ +60oC Less then 80% RH Yes Character Yes Yes Yes Yes Yes Yes No No No No No No Yes Yes Yes Yes Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes No No No No No No Yes No Yes
Color System Speaker Position Size Impedance MAX 10%(Typical)
Sound Output NTSC3.58+4.43 /PAL60Hz Broadcasting System Tuner and Receive CH
G-2
Tuning System
System Destination Tuning System Input Impedance CH Coverage Picture(FP) Sound(FS) FP-FS
Intermediate Frequency Preset CH Stereo/Dual TV Sound Tuner Sound Muting Power Source Power Consumption
G-3
Power
AC DC
Protector G-4 Regulation
G-5 G-6 G-7
Temperature Opera