Sanyo C29LF34 Service Manual
Sanyo C29LF34 Service Manual

Sanyo C29LF34 Service Manual

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SERVICE MANUAL Colour Television
Specifications
Power Source . . . . . . . .AC110-240V, 50/60Hz.
Colour 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
S-Video Input
DVD Input: Component Video Jack-Y
Component Video Jack CB/CR
Audio inputs:Phono jack (R/L)
Video monitor outputs: Phono jack
Audio monitor outputs: Phono jack(R/L)
Headphone jack: Mini Stereo jack
Speakers ......... 5cm
12cm
Sound Output . . . . . . . . 7.5W + 7.5W
Dimensions . . . . . . . . . . 750(W)
Weight . . . . . . . . . . . . . .approx. 46.8 Kg
Specifications subject to change without notice
C2SM
-
+
P
2 (1.0Vp-p, impedance 75Ω)
1 (Din 4 pin, Separate Y/C Signals Input)
1 (1.0Vp-p, impedance 75Ω)
1 (0.7Vp-p, impedance 75Ω)
3 (436mVrms, impedance more than 40KΩ)
1 (1.0Vp-p, 75Ω)
1(436mVrms, Impedance less than
1
4
582.5(H)
503(D)mm
FILE NO.
Model No. C29LF34
Service Ref. No. C29LF34-00
VIDEO
AUDIO
MODE
MODE
POWER
1
2
3
1
2
3
4
5
6
4
5
6
7
8
9
7
8
9
RECALL
0
0
MENU
CH
VOL
P
-
P
CH
SOUND SURROUND
MUTE
DISPLAY
JXMGY
Product Code: 1 113 516 11
Original Version
Chassis Series: FA1-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
600Ω)
foreign countries where the television
transmission system and power source dif-
fer from the design specifications. Refer to
the specification table.
REFERENCE NO.
(Argentina)
SLEEP
IMAGE
VOL
+
SM
5110146

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Summary of Contents for Sanyo C29LF34

  • Page 1 FILE NO. SERVICE MANUAL Colour Television Model No. C29LF34 (Argentina) Service Ref. No. C29LF34-00 VIDEO AUDIO MODE MODE POWER RECALL SLEEP IMAGE MENU SOUND SURROUND MUTE DISPLAY JXMGY Specifications Power Source ..AC110-240V, 50/60Hz.
  • 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> QXXAVB629 AUDIO EXIT AUDIO H OUTPUT AUDIO DIRECT AF DC H-OSC BLACK PEAK B-Y IN R-Y IN SIF IN DEFLECTION HI VCC X TAL 3.58 X TAL 4.43 IF OUT VIDEO VIDEO COLOUR APC IDENT FILTER IF APC KILLER FILTER...
  • Page 6 IC Block Diagrams IC501 < Vertical Output > LA7841 THERMAL PUMP PROTECTION LA7841 IC001 < Sound Output > LA4270 LA4270 Thermal Shutdown Over Voltage Ripple Filter IC301 <COMB Filter> TC9090ANM SECAM LINE VERTICAL CORING VIDEO MEMORY ENHANCER Y DAC Y-OUT PEDESTAL CLAMP CLIP...
  • Page 7 IC Block Diagrams IC3401 <BBE> QBA3880AFS IC211 NJM2234M Vout Vin3 24 DETL DETR 22 DEFL DEFR 21 VCC – HI MID 20 VCAL VCAR BUFFER 19 L-MIX R-MIX R-OUT L-OUT L-IN R-IN APFR – APFL HPFR BIAS HPFL LPFR BIASC LPFL Vin1 Vin2...
  • Page 8 IC Block Diagrams IC1001 < AV Selector > MM1313BD MTV-V V1-V 34 V COMB V2-V V3-V STV-V V1-Y V2-Y V1-C -6dB 39 C V2-C MTV-L V1-L -6dB V2-L V3-L STV-L MTV-R V1-R 32 R -6dB V2-R 24 R V3-R STV-R BIAS BIAS ADDRESS...
  • Page 9 IC Block Diagrams IC302 QNJM2233BD Vout BUFFER Vin1 Vin2 IC7905 <DAC> QCXA1315P SLAVE ADDRESS SELECT SW IN/OUTPUT SAD2 SAD1 SAD0 SW0~3 9 10 LEVEL LEVEL LATCH CONVERT CONVERT C BUS LEVEL CONVERT C DECODER Power Reset LATCH LATCH LATCH LATCH LATCH DAC4 DAC3...
  • Page 10 IC Block Diagrams IC3401 < MTS Decoder, Audio Control & Switch> UPC1851BCU Power Supply Analog Ground Volume Control Block L-channel Offset Absorption 2.2µF R-channel Offset Absorption 0.022µF L-channel Capacity of R-channel Capacity of High Frequency Tone Control Block High Frequency Band Width Band Width R-channel Capacity of Low Frequency...
  • Page 11: Service Adjustments

    Service Adjustments MAIN BOARD TELETEXT BOARD T611 Q613 CONVERTER POWER. OUT SECAM BOARD TRANS. Q612 POWER. DRIVE Pincushion Adjustment B-Voltage Supply Adjustment FOCUS ADJUSTMENT PINCUSHION ADJUSTMENT (1) Receive PAL cross hatch pattern. (1) Receive the cross hatch pattern signal. (2) Select ”FUERTE” picture mode with the remote control (2) Adjust so that the vertical lines to become straight by IMAGE button.
  • Page 12 Service Mode Adjustments [1] Bus Data Adjustments Note: The CPU (IC801) and memory IC (IC802) store the service adjustments data and controls data for each circuit. When the Memory IC(IC802) is replaced, some of the service adjustments should be readjusted to obtain the best performance.
  • Page 13 Service Mode Adjustments [Entering to Bus Data Adjustment Mode] Press and hold the MENU button on the TV set and press the 2 button on the remote control handset. Following setting items appears on the screen. Display for [H-P] Horizontal centre adjustment Read Status 00010100 ADDRESS...
  • Page 14 Service Mode Adjustments [Bus Data Adjustment] Item 44 [OP1] Option setting-1 Item 04 [OSD] OSD POSITION The microprocessor used in this model is a multi-purpose (1) Receive the monochrome circular pattern. type and is used in several different models. To ensure (2) Set the brightness and contrast to normal.
  • Page 15 Service Mode Adjustments Items 18-24 GREY SCALE (1) Receive the 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-18 RBI, 19 GBI, 20 BBI mode to 00. Set each value of Item-21 RD, 22 BD mode to 64. (5) Select Item-24 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible one coloured line.
  • Page 16 Service Mode Adjustments [2] MTS Adjustments 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 STEREO VCO 00~63 FILTER 00~63 LOW SEPARATION 00~63 HIGH SEPARATION 00~63 SAP VCO 00~63...
  • Page 17: Input Level 25 00~63

    Service Mode Adjustments [MTS Adjustments] SOUND LEVEL ADJUSTMENT 1. Input monaural sound signal (400Hz, 25KHz Div.)from the TPHIGH MTS BOARD antenna terminal. 2. Connect a DC Volt-Meter to TPLOW (on the MTS unit) and the ground. 3. Switch the TV set on. Press and hold the MENU button on the TV set, and press IC3401 “3”...
  • Page 18: Filter

    Service Mode Adjustments MTS FILTER ADJUSTMENT 1. Connect a signal generator to + side of C3407 and the ground. 1M ohm Resistor Signal output=15.734KHz, 100mVrms. Jig-A (Plug 3P) 2. Connect a DC Volt-Meter to TPHIGH(on the MTS unit) and the ground. 3.
  • Page 19: Sap Vco

    Service Mode Adjustments 5. Adjust level of 300Hz at TPLOW to become minimum TPLOW Minimum leakage level by pressing the VOLUME(+/ -) button on the remote control or TV set. 300Hz 6. Select “HI SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set. INPUT LEVEL STEREO VCO FILTER...
  • Page 20: Service Mode Adjustments

    Service Mode Adjustment [3] Fine Tuning Service Menu This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by the automatic tuning. This function is available for one channel only and the fine-tuned channel is memorized into IC802 (EEPROM). Press and hold the MENU button on the TV set and press the 4 button on the remote control handset to enter to the service mode.
  • Page 21: 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: Signals: Use a pattern generator which can output red, Figure 1 green, blue and white raster and crosshatch pattern signals.
  • Page 22 Purity and Convergence Adjustment Figure 5 CONVERGENCE ADJUSTMENT Preparation: After carrying out purity adjustment and before proceeding to convergence adjustment, provisionally insert the rubber wedge so that there is no vertical or sideways play in the deflection yoke. Signals: Display a crosshatch pattern. 1.
  • Page 23: Mechanical Disassembles

    Mechanical Disassembles CABINET BACK REMOVAL CHASSIS REMOVAL 1. Refer to Figure 1, remove 12 screws. 1. Remove cabinet back. 2. Pull off cabinet back and remove. 2. Discharge the picture tube anode (2nd anode lead) to the dag coating (picture tube grounding lead). 3.
  • Page 24: Cabinet Parts List

    610 286 9781 RC-BATTERY LID 610 284 7741 DOOR COVER 645 004 5493 ANTENNA MATCHING BOX 610 284 7765 DEC SHEET DOOR 645 030 7348 BADGE,SANYO 610 287 6628 INSTRUCTIONS MANUAL 610 284 5990 CABINET FRONT 610 284 7833 SPRING PLATE -24-...
  • Page 25: Chassis Electrical Parts List

    Chassis Electrical Parts List C2SM 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 26 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 405 151 8705 TR 2SC536NG-NPA 405 012 2002 TR 2SC1815-GR 405 020 7501 TR 2SC945A-PA 405 012 2101 TR 2SC1815-O 405 020 7709 TR 2SC945A-QA 405 012 2309 TR 2SC1815-Y 405 020 7907 TR 2SC945A-RA 405 157 0505...
  • Page 27 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 405 020 7907 TR 2SC945A-RA CAPACITOR Q7914 405 011 8401 TR 2SC1740S-Q C1001 403 047 9003 ELECT 0.1U M 405 011 8500 TR 2SC1740S-R C1002 403 050 0509 ELECT 2.2U M 405 011 8609 TR 2SC1740S-S...
  • Page 28 C2SM Ref. No. Part No. Description Ref. No. Part No. Description R1011 401 105 5202 MT-GLAZE 470 JA 1/16W R7919 401 105 7909 MT-GLAZE 0.000 ZA 1/16W R1012 401 105 2706 MT-GLAZE 220 JA 1/16W R7926 401 105 1105 MT-GLAZE 12K JA 1/16W R1013 401 105 0504...
  • Page 29 C2SM Ref. No. Part No. Description Ref. No. Part No. Description D1309 407 099 6607 ZENER DIODE MTZJ12B 610 286 0627 ASSY,PWB,SOCKET C2SM 407 054 3207 ZENER DIODE RD12EB2 1AA0B10E604C0 D1310 407 099 6607 ZENER DIODE MTZJ12B 407 054 3207 ZENER DIODE RD12EB2 TRANSISTOR D1311...
  • Page 30 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 405 020 7709 TR 2SC945A-QA 405 020 7907 TR 2SC945A-RA 405 020 7907 TR 2SC945A-RA Q782 406 009 9509 TR 2SC4544 Q1708 406 000 6804 TR 2SA1015-GR(SAN) CAPACITOR 405 001 7407 TR 2SA1015-O(SAN) 405 001 7605 TR 2SA1015-Y(SAN)
  • Page 31 C2SM Ref. No. Part No. Description Ref. No. Part No. Description R1732 401 010 7704 CARBON 560 JB 1/2W D761 407 006 3903 DIODE ERB43-04 R1733 401 024 7707 CARBON 100K JA 1/6W MISCELLANEOUS R1734 401 024 7707 CARBON 100K JA 1/6W R1735 401 010 7704...
  • Page 32 C2SM Ref. No. Part No. Description Ref. No. Part No. Description Q1902 406 000 6804 TR 2SA1015-GR(SAN) 405 011 8609 TR 2SC1740S-S 405 001 7407 TR 2SA1015-O(SAN) 405 012 2002 TR 2SC1815-GR 405 001 7605 TR 2SA1015-Y(SAN) 405 012 2101 TR 2SC1815-O 405 004 3109 TR 2SA564A-Q(CU)
  • Page 33 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 405 151 8705 TR 2SC536NG-NPA 405 004 3208 TR 2SA564A-R(CU) 405 020 7501 TR 2SC945A-PA 405 151 3304 TR 2SA608NF-NPA 405 020 7709 TR 2SC945A-QA 405 006 1707 TR 2SA933S-Q 405 020 7907 TR 2SC945A-RA 405 006 1806...
  • Page 34 C2SM Ref. No. Part No. Description Ref. No. Part No. Description C138 403 048 1907 ELECT 0.22U M C467 404 080 1900 ELECT 220U M C147 403 157 2901 CERAMIC 47P J 403 040 3701 ELECT 220U M C148 403 157 2901 CERAMIC 47P J C468...
  • Page 35 C2SM Ref. No. Part No. Description Ref. No. Part No. Description C683 403 050 6600 ELECT 3.3U M R205 401 105 5905 MT-GLAZE 560 JA 1/16W C801 403 149 9208 CERAMIC 0.01U Z R206 401 105 0504 MT-GLAZE 1K JA 1/16W C807 403 139 7306 CERAMIC...
  • Page 36 C2SM Ref. No. Part No. Description Ref. No. Part No. Description R461 401 027 8305 CARBON 820 JA 1/6W R805 401 105 0603 MT-GLAZE 10K JA 1/16W R462 401 026 9600 CARBON 470 JA 1/6W R806 401 105 0603 MT-GLAZE 10K JA 1/16W R464 401 026 9907...
  • Page 37 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 407 005 8602 DIODE ERA15-02 TRANSFORMER 408 009 9008 DIODE BYD33D T431 610 000 1077 DRIVE TRANS 408 035 3100 DIODE TEM01Z 610 223 1656 DRIVE TRANS 408 037 7205 DIODE EM01Z(LYS) 652 000 0704 TRANS,DRIVE...
  • Page 38 C2SM Ref. No. Part No. Description Ref. No. Part No. Description C3412 403 090 6004 TA-SOLID 3.3U K MISCELLANEOUS C3413 403 049 0008 ELECT 1U M F601 423 024 8409 FUSE 250V C3414 403 090 3607 TA-SOLID 10U K F601-1 645 000 5077 HOLDER,FUSE C3416...
  • Page 39 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 405 011 8500 TR 2SC1740S-R 405 012 2309 TR 2SC1815-Y 405 011 8609 TR 2SC1740S-S 405 157 0505 TR 2SC536NF-NPA 405 012 2002 TR 2SC1815-GR 405 151 8705 TR 2SC536NG-NPA 405 012 2101 TR 2SC1815-O 405 020 7501...
  • Page 40 C2SM Ref. No. Part No. Description Ref. No. Part No. Description 405 020 7709 TR 2SC945A-QA C301 403 149 9208 CERAMIC 0.01U Z 405 020 7907 TR 2SC945A-RA C302 403 043 9106 ELECT 47U M Q3521 405 011 8401 TR 2SC1740S-Q C303 403 041 8804 ELECT...
  • Page 41 C2SM Ref. No. Part No. Description Ref. No. Part No. Description C3513 403 215 2201 CERAMIC 0.01U K R341 401 026 4605 CARBON 33K JA 1/6W C3514 403 041 8804 ELECT 10U M R3411 401 105 0405 MT-GLAZE 100 JA 1/16W C3515 403 041 8804 ELECT...
  • Page 42 C2SM Ref. No. Part No. Description Ref. No. Part No. Description INTEGRATED CIRCUIT IC1601 409 179 4503 IC STR81145A CAPACITOR C1600 403 146 5500 ELECT 2.2U M 450V C1601 403 042 2405 ELECT 100U M C1602 403 067 1209 MT-POLYEST 0.1U K 630V C1603...
  • Page 43 A14800 Oct. /’00 /150 SI NEWSAN S. A. Una empresa del grupo SANYO Electric Co. Printed in Japan...
  • Page 44 Rated wattage (1/2W) W: Wire wounding 1S1553, 1S2076A, 1S2471, 1N4148 may be some components or partial circuit differences between the SERVICE C29LF34-00 C: Solid 1S1555, 1S2473, 1S2076, DS442, 1N4148 actual chassis and the circuit diagram. REF. NO. 9. Parts specified with "X" are not installed in this model.
  • Page 45 TO:SVM COIL C1726 140V (On the Socket Board) C794 C793 K17C J10AR020N L761 500CJ C1719 L1706 L2C1271KN 250EM 56GAA L2C15R6KN K17H 4.7CY 160EM10CY TO:MAIN UNIT (KS) C1722 Q762 210V R1704 J10EA040N R766 160EM22CY Q1709 K761A K761 R768 L762 QT0392 R1742 R1745 Q1700 Q1701...

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