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SERVICE MANUAL Colour Television
VIDEO
AUDIO
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 . .75
Ext. Terminals
Video inputs: Phono jack
Audio inputs: Phono jack
Headphone Jack: Mini jack
Sound Output (Music) . . .2.0W
Dimensions . . . . . . . . .Model C14LT77M: 380(W)
Model C20LB87M: 496(W)
Weight . . . . . . . . . . . . .Model C14LT77M: approx. 9.4Kg
Model C20LB87M: approx. 16.7 Kg
Specifications subject to change without notice.
F5SS/F5TS
-
+
CH
VOL
MENU
2(1Vp - p, 75
2 (436mVrms, more than 40K
1
356(H)
464(H)
VIDEO
-
+
AUDIO
VOL
MENU
CH
Product Code: 1 113 377 14
Original Version
Chassis Series: LC1-B
Give complete "SERVICE REF. NO." for parts
order or servicing. It is shown on the rating
plate at the cabinet back of the unit.
383.5(D)mm
This T.V. receiver will not work properly in
472(D)mm
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the specifi-
cation table.
FILE NO.
Model No. C14LT77M
C20LB87M
(Argentina)
Service Ref. No. C14LT77M-00
C20LB87M-00
VIDEO
POWER
MODE
1
4
7
RECALL
MENU
-
VOL
MUTE
(C14LT77M)
1 113 378 14
(C20LB87M)
SM
REFERENCE NO.
5110213
AUDIO
MODE
2
3
6
5
8
9
SLEEP
0
IMAGE
+
VOL
CH
DISPLAY
FXMR
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Table of Contents
Related Manuals for Sanyo C14LT77M
Summary of Contents for Sanyo C14LT77M
- Page 1 464(H) 472(D)mm foreign countries where the television trans- Weight ... . .Model C14LT77M: approx. 9.4Kg mission system and power source differ from Model C20LB87M: approx. 16.7 Kg the design specifications. Refer to the specifi- cation table.
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Page 2: Table Of Contents
Contents Safety Notice ............... . 2 Chassis Block Diagram . -
Page 3: Chassis Block Diagram
Chassis Block Diagrams MAIN SIGNAL PROCESSING CIRCUIT HORIZ. AUDIO-IN EXT. VERT. VIDEO-IN EXT. VIDEO-IN INT. VIF/SIF AUDIO-OUT... - Page 4 Chassis Block Diagrams SYSTEM CONTROL...
-
Page 5: Ic Block Diagrams
IC Block Diagrams IC201 < IF/Video/Chroma/Def. > QXXAVB488 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: Protection Circuit
IC Block Diagrams IC001 < Audio AMP. > LA4285 1000 F DC VOL POWER OUT INT/EXT 0.1 F 100 F PRE GND 10 F 47 F DC VOL D. C POWER GND IC501 < Vertical Output > LA7840 THERMAL PUMP PROTECTION LA7840 LA7841... -
Page 7: Service Adjustments With Replacing Memory Ic(Ic802)
Service Adjustments with Replacing Memory IC(IC802) 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 8 Service Adjustments with Replacing Memory IC(IC802) [2] Service Adjustments-1 Following table shows the initial values which have been stored in the CPU ROM, and items for the service adjustments. Service mode adjustments table in CPU ROM Item Initial value Range Description 00~15 Horizontal centre adjustment...
- Page 9 Service Adjustments with Replacing Memory IC(IC802) [Entering to Service 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. MENU Display for [H-P] Horizontal centre adjustment Read Status 00100100 Item No.
- Page 10 Service Adjustments with Replacing Memory IC(IC802) Item 01 [H-P] HORIZONTAL CENTRE Item 05 [AGC] AGC NOTE: Do not attempt this adjustment with weak signal. (1) Receive the monochrome circular pattern. (1) Tune the receiver to most clearest (or strongest) VHF (2) Set the brightness and contrast to normal.
- Page 11 Service Adjustments with Replacing Memory IC(IC802) 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 12 Service Adjustments with Replacing Memory IC(IC802) [3] Service Adjustment-2 FINE TUNING 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).
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Page 13: Service Adjustments
Service Adjustments Following adjustments are not required to readjust when replacing the memory IC. MAIN BOARD FOCUS ADJUSTMENT +B POWER SUPPLY 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. -
Page 14: 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. 1. -
Page 15: Cabinet Parts List
F5SS Cabinet Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. Model C14LT77M AUDIO ANT 75 VIDEO IN VIDEO AUDIO VIDEO AUDIO MENU POWER MODE MODE RECALL SLEEP MENU IMAGE MUTE DISPLAY FXMR Key No. - Page 16 SPRING 610 269 9166 DEC IND 610 269 8930 BUTTON UNITED 610 269 6578 CABINET FRONT 645 040 1107 SANYO BADGE 610 269 6585 CABINET BACK 610 291 7734 LABEL RATING 645 029 2590 ASSY,REMOCON FXMR 610 273 0173 RC-BATTERY LID...
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Page 17: Chassis Electrical Parts List
Chassis Electrical Parts List F5SS Model C14LT77M 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 18 F5SS Ref. No. Part No. Description Ref. No. Part No. Description Q261 405 134 5905 TR 2SA1037AK-T146-R 405 002 0308 TR 2SA1037K T146 R 405 147 2205 TR 2SA1037AK-S-T146 405 002 0407 TR 2SA1037K T146 S 405 002 0308 TR 2SA1037K T146 R 405 002 6706 TR 2SA1179-M6-TB 405 002 0407...
- Page 19 F5SS Ref. No. Part No. Description Ref. No. Part No. Description C191 403 041 2109 ELECT 47U M 403 275 8205 CERAMIC 680P K C201 403 043 9106 ELECT 47U M C617 403 059 6205 POLYESTER 0.022U K C202 403 149 9208 CERAMIC 0.01U Z 403 312 0506...
- Page 20 F5SS Ref. No. Part No. Description Ref. No. Part No. Description R170 401 150 5905 MT-GLAZE 10K JA 1/10W R506 401 025 8208 CARBON 22K JA 1/6W R171 401 150 6001 MT-GLAZE 0.000 ZA 1/10W R507 401 024 9701 CARBON 12K JA 1/6W R172...
- Page 21 F5SS Ref. No. Part No. Description Ref. No. Part No. Description R863 401 150 5905 MT-GLAZE 10K JA 1/10W D384 408 008 2406 DIODE 1N4148 R870 401 025 8208 CARBON 22K JA 1/6W 407 013 4306 DIODE 1S2076A R871 401 150 5905 MT-GLAZE 10K JA 1/10W 407 013 6508...
- Page 22 F5SS Ref. No. Part No. Description Ref. No. Part No. Description D861 407 099 4801 ZENER DIODE MTZJ4.3B RESISTOR 407 056 4707 ZENER DIODE RD4.3EB2 R701 401 113 5409 MT-GLAZE 510 JA 1/16W R703 401 105 5202 MT-GLAZE 470 JA 1/16W MISCELLANEOUS R704 401 058 9807...
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Page 23: Chassis Electrical Parts List
Chassis Electrical Parts List F5TS Model C20LB87M 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 24 F5TS Ref. No. Part No. Description Ref. No. Part No. Description 405 163 1701 TR 2SC2812N-L7-TB0 405 147 2205 TR 2SA1037AK-S-T146 Q261 405 134 5905 TR 2SA1037AK-T146-R 405 002 0308 TR 2SA1037K T146 R 405 147 2205 TR 2SA1037AK-S-T146 405 002 0407 TR 2SA1037K T146 S 405 002 0308 TR 2SA1037K T146 R...
- Page 25 F5TS Ref. No. Part No. Description Ref. No. Part No. Description C177 403 048 4205 ELECT 0.33U M 403 311 9609 POLYESTER 0.015U J C191 403 041 2109 ELECT 47U M C616 403 247 0008 CERAMIC 1500P K C201 403 043 9106 ELECT 47U M 403 263 6602...
- Page 26 F5TS Ref. No. Part No. Description Ref. No. Part No. Description R147 401 150 6100 MT-GLAZE 2.2K JA 1/10W R462 401 026 9907 CARBON 4.7K JA 1/6W R151 401 152 3206 MT-GLAZE 330 JA 1/10W R481 401 061 0808 OXIDE-MT 3.9 JA R170 401 150 5905...
- Page 27 F5TS Ref. No. Part No. Description Ref. No. Part No. Description R842 401 162 3708 MT-GLAZE 4.7K JA 1/10W 407 013 6508 DIODE 1S2471 R851 401 256 7605 MT-GLAZE 3.9K JA 1/10W D351 407 099 6003 ZENER DIODE MTZJ9.1B R853 401 162 4101 MT-GLAZE 5.6K JA 1/10W...
- Page 28 F5TS Ref. No. Part No. Description Ref. No. Part No. Description 407 057 8209 ZENER DIODE RD8.2EB1 405 041 6705 TR 2SC2621-E-RA D631 407 007 7702 DIODE EU2A 405 066 9903 TR 2SC2688(1)-K D633 407 007 7603 DIODE EU2 405 067 0008 TR 2SC2688(1)-L 407 007 7801 DIODE EU2Z...
- Page 29 8. This circuit diagram covers a basic or representative chassis only. There Rated wattage (1/2W) W: Wire wounding may be some components or partial circuit differences between the POSISTER SERVICE C14LT77M-00 C: Solid Q,R,S RESISTOR actual chassis and the circuit diagram. REF. NO.
- Page 30 Waveforms & Voltages (On the Main Board) IC201 (IF/VIDEO/CHROMA) :: Pin-1: GND 4.5V 0.4V 5.3V 1.0V 1.5V 1.5V 4.9V 10: 4.6V 0.6V 2.4V 4.7V 5.4V 5.1V 4.4V 2.5V 19: 2.3V 2.4V 4.1V 8.6V 2.5V 2.6V 5.2V 4.8V 1.0V 28: 2.6V 3.4V 2.5V 2.7V...
- Page 31 <R> <G> <B> EXT.AUDIO-L J11NA050N: B4J11ZA050N EXT.VIDEO K1111 R104 J31B01200 130V R106 R107 FRONT R103 1/10GJ 1/10GJ VIDEO IN D1102 R1106 1SJ39K 100CA 100CA A101 1/16GJ C103 TUNER R113 R112 D103 1/10GJ 1/10GJ F1BAM0270 MTZJ36A: 100CA 5.6KCA RD36EB1 R114 C112 FRONT 1/10GJ D1101...
- Page 32 Waveforms & Voltages (On the Main Board) IC201 (IF/VIDEO/CHROMA) :: Pin-1: GND 4.5V 0.4V 5.3V 1.0V 1.5V 1.5V 4.9V 10: 4.6V 0.6V 2.4V 4.7V 5.4V 5.1V 4.4V 2.5V 19: 2.3V 2.4V 4.1V 8.6V 2.5V 2.6V 5.2V 4.8V 1.0V 28: 2.6V 3.4V 2.5V 2.7V...
- Page 33 NEWSAN S. A. Una empresa del grupo SANYO Electric Co. A14800 /Mar. /’01 /150 BB Printed in Japan...