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Sanyo C29LK40S Service Manual
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Sanyo C29LK40S Service Manual

Sanyo C29LK40S Service Manual

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SERVICE MANUAL Colour Television
VIDEO L-AUD IO-R
Specifications
Power Source . . . . . . . . .AC220V, 50Hz / 60Hz
Receiving System . . . . . .PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69
CATV mode
VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Video IF . . . . . . . . . . . . . 45.75MHz
Aerial Input Impedance . . 75Ω
Ext. Terminals
Video inputs: Phono jack
Audio inputs: Phono jack (R/L)
Headphone Jack: Mini stereo jack
Sound Output (RMS) . . . . 3W + 3W
Speakers . . . . . . . . . . . 5cm x 9cm x 2 pcs.
Dimensions . . . . . . . . . 656(W)
Weight . . . . . . . . . . . . . approx. 31.0 Kg
Specifications subject to change without notice.
C4CMS
MENU
CH
-
VOLUME
+
2 (1Vp - p, 75Ω)
2 (436mVrms, more than 40KΩ)
1
600(H)
496(D)mm
FILE NO.
Model No. C29LK40S
Service Ref. No. C29LK40S-00
Product Code: 111355031
Original Version
Chassis Series: LA5-A
Give complete "SERVICE REF. NO." for parts
order or servicing. It is shown on the rating
plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the specifi-
cation table.
(Argentina)

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  • Page 1 FILE NO. SERVICE MANUAL Colour Television Model No. C29LK40S (Argentina) Service Ref. No. C29LK40S-00 VIDEO L-AUD IO-R MENU VOLUME Specifications Product Code: 111355031 Power Source ..AC220V, 50Hz / 60Hz Receiving System ..PAL (M/M, N/N), NTSC (M/M)

  • Page 2: Table Of Contents

    Contents Safety Notice ............... . 2 Chassis Block Diagram .

  • Page 3: Chassis Block Diagram

    Chassis Block Diagrams MAIN SIGNAL PROCESSING CIRCUIT...
  • Page 4 Chassis Block Diagrams SYSTEM CONTROL...

  • Page 5: Ic Block Diagrams

    IC Block Diagrams IC201 < IF/Video/Chroma/Def. > LA76818A Audio Output SIF Input FM Output/Selected SIF APC Filter Audio Output SIF Output PIF AGC Ext. Audio Input RF AGC Output PIF Input1 APC Filter VCO Coil 1 PIF Input 2 VCO Coil 2 IF Ground VCO Filter IF Vcc...
  • Page 6 IC Block Diagrams IC201 <IF System Block Diagram> LA76818A...
  • Page 7 IC Block Diagrams IC002 < Audio AMP. > LA42052-E IC501 < Vertical Output > LA78041-E, STV9379A STANDBY Thermal Protection INPUT AMP. OUTPUT AMP. OUT1 Pump REF AMP. THERMAL POWER PROTECTION CIRCUIT OUT2 INPUT AMP. OUTPUT AMP. POP NOISE PREVENTION RIPPLE FILTER BLOCK BLOCK RIPPLE...

  • Page 8: Service Adjustments

    Service Adjustments General This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments. IC802 (EEPROM) Replacement When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation. However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
  • Page 9 Service Adjustments On-screen Service Menu Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described in the following pages.
  • Page 10 Service Adjustments Item Initial value Range Description COOP 00~07 Colour Killer Y-APF 00, 01 Y-APF Select DEEM 00, 01 De-emphasis TC V-LVL 00~07 Video Level FMLVL 00~31 FM Level TTEST 00~07 Trap Test IFOM-S 00, 01 Over Mod. SW IFMN-S 00, 01 Audio Monitor SW, Monitor/FM IFTRPS...
  • Page 11 Service Adjustments Important Notice: Do not attempt to adjust service adjustments not listed on below otherwise it may cause loss of performance and for correct operation. Item 01 [RFAGC] AGC Item 04 [V-SIZ] VERTICAL SIZE NOTE: Do not attempt this adjustment with weak signal. 1.
  • Page 12 Service Adjustments Items 16-23 GREY SCALE (1) Receive a monochrome circular pattern. (2) Set the brightness and colour to normal, contrast to maximum. (3) Enter to the service mode. (4) Set each value of Item-16 RBIAS, 17 GBIAS, 18 BBIAS mode to 00. Set each value of Item-19 RDRIV, 21 BDRIV mode to 63, 20 GDRIV to 07.
  • Page 13 Service Adjustments Service Adjustment-2 (MTS Adjustment) Following table shows the initial values of MTS Adjustment which have been stored in the CPU ROM. Item Initial value Range INPUT LEVEL 00~63 HIGH SEPARATION 00~63 LOW SEPARATION 00~63 1. Enter the Service Menu While pressing the MENU button on the televi- sion, press the Number Key 3 on the remote control unit.
  • Page 14 Service Adjustments SOUND LEVEL ADJUSTMENT 1. Connect a signal to the antenna terminal with audio signal TP-317(pin-38 of IC3401) of 1KHz at 100% modulated. 2. Connect a DC Volt-Meter to TP-317 ( pin-38 of IC3401) and the ground. 3. Switch the TV set on, and set the Surround OFF. Press and hold the MENU button on the TV set, and JP3405 press “3”...

  • Page 15: Service Adjustment

    Service Adjustments 6. Select “HI SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set. INPUT LEVEL HI SEPARATION LOW SEPARATION ADJUST: - /+ CHOOSE: EXIT : MENU Minimum leakage TP-318 (L) 7. Adjust the level of 4KHz at TP-318 (pin-39 of IC3401) to become minimum level by pressing the VOLUME (+/-) button on the remote control or TV set.
  • Page 16 Service Adjustments Service Adjustment-4 FOCUS ADJUSTMENT 1. Receive the monochrome circular pattern. 2. Set the brightness to normal and contrast to maximum. 3. Adjust the focus control on the F.B.T. for the best focus on the screen centre. Horizontal Width VR462 L462H2 T471-H3...

  • Page 17: Purity And Convergence Adjustment

    Purity and Convergence Adjustment CAUTION: The Convergence and Purity adjustments have been made at the factory. Readjustment should be made only after picture tube or deflection yoke replacement, following the steps below: PURITY ADJUSTMENT 8. Tighten the mounting screw of the Deflection Yoke. Adjust 1.

  • Page 18: Cabinet Parts List

    COIL SPRING-D8HA 610 288 9260 DEC IND-C4CA 610 288 9178 BUTTON UNITED-C4CE 610 320 5496 CABINET FRONT-C4CMS 645 040 1107 BADGE,SANYO*53.5X12L53.5 610 270 3153 CABINET BACK-F5AA 610 320 5939 LABEL RATING-C4CMS 645 051 8904 ASSY,REMOCON JXMRA 610 297 3723 RC-BATTERY LID-JXMRA...

  • Page 19: Chassis Electrical Parts List

    Chassis Electrical Parts List C4CMS Product safety should be considered when a component replacement is made in any area of a receiver. Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to product safety.
  • Page 20 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description Q462 405 011 8411 TR 2SC1740S-TP-Q 405 163 1513 TR 2SA1179N-M6-TB 405 011 8510 TR 2SC1740S-TP-R 405 163 2718 TR 2SA1179N-M7-TB 405 011 8619 TR 2SC1740S-TP-S 405 173 9615 TR 2SA1235A1E 405 012 2012 TR 2SC1815-GR-TPE2...
  • Page 21 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description Q881 405 014 4519 TR 2SC2412K T146 R 404 084 7809 ELECT 100U M 405 014 4618 TR 2SC2412K T146 S C132 403 048 6328 ELECT 0.47U M 405 015 8724 TR 2SC2812-L6-TB 404 084 8707 ELECT...
  • Page 22 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description C3432 404 087 1606 ELECT 0.1U M C611 403 056 9734 POLYESTER 0.01U J C3433 403 155 2339 CERAMIC 4700P K 403 178 9319 POLYESTER 0.01U J C3434 403 284 4324 CERAMIC 0.022U K C613...
  • Page 23 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description RESISTOR R244 401 105 5430 MT-GLAZE 47K JA 1/16W R245 401 105 5430 MT-GLAZE 47K JA 1/16W R003 401 026 3925 CARBON 330 JA 1/6W R263 401 105 0633 MT-GLAZE 10K JA 1/16W R006...
  • Page 24 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description R540 401 026 4328 CARBON 3.3K JA 1/6W R834 401 105 0633 MT-GLAZE 10K JA 1/16W R601 401 008 8627 CARBON 220K JA 1/2W R835 401 105 0633 MT-GLAZE 10K JA 1/16W R602 402 071 1205...
  • Page 25 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description 610 208 3781 COIL D512 407 005 7318 DIODE EM01Z-V0 L601 645 057 2791 LINE FILTER 407 005 8612 DIODE ERA15-02-V5 L612 645 018 9722 CORE,PIPE 408 010 0506 DIODE BYD33D TP 652 001 0147 CORE,PIPE...
  • Page 26 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description MISCELLANEOUS 406 000 3605 TR 2SC3620(LB-SAN-1) Q741 405 134 5925 TR 2SA1037AK-T146-R F601 423 028 8603 FUSE 250V 405 147 2215 TR 2SA1037AK-S-T146 423 024 8409 FUSE 250V 423 007 2103 FUSE 250V 405 002 0318...
  • Page 27 C4CMS Ref. No. Part No. Description Ref. No. Part No. Description MISCELLANEOUS JS741 403 157 6939 CERAMIC 820P K K701 645 026 2005 SOCKET,CRT 8P 652 001 0321 SOCKET,CRT 8P 652 001 1465 SOCKET,CRT 8P 652 001 3247 SOCKET,CRT 12P -27-...
  • Page 28 Dec./’04 NEWSAN S. A. Una empresa del grupo SANYO Electric Co.
  • Page 29 =12K W: Wire wounding SERVICE may be some components or partial circuit differences between the Rated wattage (1/2W) C29LK40S-00 C: Solid actual chassis and the circuit diagram. REF. NO. 9. Parts specified with "X" are not installed in this model.
  • Page 30 Waveforms & Voltages CRT BOARD (Component Location) (On the Main Board) 1AA4B10E6900B IC002 (AUDIO AMP.) Pin-1 7.7V 1.6V 1.6V 5.8V 12.0V 18.2V 7.5V Q701 R741 B-OUT D741 10 GND 7.6V D742 J702 IC201 (IF/VIDEO/CHROMA) Q701-L D754 Q711 Pin-1 2.3V 2.3V 2.7V 1.6V 2.9V...

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