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SERVICE MANUAL   Colour Television   

Product Code: 1 113 549 00 (21TC647)

1 113 550 00 (29TC649)

Original Version

Chassis Series: LA4-A

C4BA/C4BAS/C4CA

FILE NO.

Model No. 21TC647

29TC649

Service Ref. No. 21TC647-00

21TC647-01
29TC649-00

(Argentina)

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.

Specifications

Power Source   . . . . . . . . .AC110V-240V, 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 

2 (1Vp - p, 75

Ω)

Audio inputs: Phono jack (R/L) 

2 (436mVrms, more than 40K

Ω)

Headphone Jack: Mini stereo jack 

1

Sound Output (RMS)  . . . .3W + 3W
Speakers   . . . . . . . . . . .5cm 

9cm 

2

Dimensions   . . . . . . . . .Model 21TC647: 606 (W) 

483(H) 

479(D)mm

Model 29TC649: 656 (W) 

496(H) 

✕ 

600(D)mm        

Weight  . . . . . . . . . . . . .Model 21TC647: approx.

Kg

Model 29TC649: approx.

Kg 

Specifications subject to change without notice.

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Summary of Contents for 1 113 549 00

Page 1: ...table Specifications Power Source AC110V 240V 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...

Page 2: ...X RADIATION in television receiver is the picture tube The picture tube is specially con structed to limit X RADIATION emissions For continued X RADIATION protection the replacement tube must be the s...

Page 3: ...P 4 5MHz R G B Q901 CRT HV T401 F B T DEFLECTION YOKE Q432 HORIZ OUT HEADPHONE JACK SP901 SP902 AUDIO RIGHT AUDIO LEFT FRONT AV IN VIDEO SDA SCL 27 28 IC801 CPU QXXAVB338 X TAL SW2 PAL N 37 38 R G B B...

Page 4: ...N CIRCUIT HORIZ SYNC IN ACTIVE LOW VERT SYNC IN ACTIVE LOW POWER PROTECT IN POWER ERROR LOW POWER CIRCUIT etc SCL SDA IC802 MEMORY OSC 32 768KHZ CPU OSC OUT CPU OSC IN LED ON TIMER LED OUT ON LOW RC S...

Page 5: ...N H VCC SECAM REF V SIZE SERVICE SW H OSC SELF ADJ CLAMP 50 60 OUT R TINT B R DRIVE B G ABCL ABCL ID CUT BLUEBACK WHITE BACK COLOR CONTRAST SERVICE BRIGHT STATION DET STATION SYSTEM SET SYSTEM IF AGC...

Page 6: ...f2 Ch2 Input amplifier Pop noise prevention block Pre drive amplifier Pre drive amplifier 4 1 Output amplifier TSD protector 2 Ch1 output Large signal GND 3 Output amplifier Ripple filter 5 Filter Sta...

Page 7: ...ltage Pilot Detector 1 Pilot Detector 2 Phase Detector 1 Phase Detector 2 SAP Signal Output SAP Signal Input Spectral Timing Setting VCA Offset Absorption Wide band Timing Setting Wide band RMS Settin...

Page 8: ...transmitter The following picture appears on the screen This completes the initialization of memory IC 02 Following shows the initialized contents of memory data by this procedure 1 TV AV mode TV mod...

Page 9: ...fine adjustment 11 B ST 00 00 01 Black stretch on off setting 12 ABCL 01 00 01 ABCL adjustment 13 AB G 00 00 01 ABCL gain adjustment 14 TRAP 03 00 03 Trap frequency adjustment 15 WBK 00 00 01 White ba...

Page 10: ...or H P Horizontal centre adjustment 00010011 00100100 01 H P 08 Read Status Item No Item Data value Data value for Red Display for DRV White balance adjustment Read Status Item No Item Data value for...

Page 11: ...est or strongest VHF station in your area Set the brightness and contrast controls to maximum Set the colour control to mini mum 2 Select AGC in the service mode 3 Change value until the snow noise ju...

Page 12: ...is mode 7 Select Item 23 DRV mode to enter the white balance adjusting mode 8 Press the 7 Red Drive CHANNEL RECALL Red Drive 8 Blue Drive or 0 Blue Drive button alternately to produce normal black and...

Page 13: ...justment Service Mode 1 Press and hold the MENU button on the TV set and press the 3 button on the remote control handset Following setting items appears on the screen MTS Adjustment Mode To return to...

Page 14: ...e of C3437 and the ground 2 Ground TP 20 pin 45 of IC201 with the jumper lead 3 Switch the TV set on Press and hold the MENU button on the TV set and press 3 button on the remote control transmitter t...

Page 15: ...he remote control or TV set MTS FILTER ADJUSTMENT IC3401 MTS TP 301 TP 317 IC201 IF VIDEO CHROMA DEF TP 20 pin 45 Service Mode INPUT LEVEL 25 STEREO VCO 23 FILTER 32 LOW SEPARATION 29 HI SEPARATION 26...

Page 16: ...the service mode press the MENU button Service Mode INPUT LEVEL 25 STEREO VCO 23 FILTER 32 LOW SEPARATION 29 HI SEPARATION 26 SAP VCO 27 ADJUST CHOOSE EXIT MENU 1 Connect a frequency counter to TP 317...

Page 17: ...mal TV mode after 5 seconds 2 Press and hold the VOLUME or VOLUME button on the remote control handset or TV set to make fine tuning adjustment Press and hold the VOLUME button for higher frequency tu...

Page 18: ...nees and contrast minimum setting Note If the picture tube is replaced check the high voltage The horiz width adjustment affects the high voltage Therefore re check the high voltage FOUCUS VR Upper si...

Page 19: ...art of the picture screen is coloured adjust the Deflection Yoke position forward or backward slightly 8 Tighten the mounting screw of the Deflection Yoke Adjust Convergence next CENTRE CONVERGENCE AD...

Page 20: ...0 288 9826 LABEL RATING Service Ref No 21TC647 01 11 645 042 8968 ASSY REMOCON JXMMA 12 610 288 0397 RC BATTERY LID 13 645 004 5493 ANT MATCHING BOX 610 290 3089 INSTRUCTIONS MANUAL Key No Part No Des...

Page 21: ...11 645 042 8968 ASSY REMOCON JXMMA 12 610 288 0397 RC BATTERY LID 13 645 004 5493 ANT MATCHING BOX 610 290 3089 INSTRUCTIONS MANUAL Key No Part No Description Key No Part No Description C4CA Note Part...

Page 22: ...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 signifi...

Page 23: ...409 241 5407 IC BA178M05T 409 172 1509 IC MC78M05CT 409 320 5700 IC UPC78M05AHF IC801 410 328 4800 IC LC863232A 5L95 IC802 409 343 6302 IC 24LC04B P CAPACITOR C001 403 049 0008 ELECT 1U M 50V C002 403...

Page 24: ...09 CERAMIC 220P K 2K C613 403 218 8804 CERAMIC 220P K 2K 403 324 3304 CERAMIC 220P K 2K 403 232 1409 CERAMIC 220P K 2K C614 403 138 9905 POLYESTER 470P J 50V 403 276 9102 POLYESTER 470P J 50V 403 312...

Page 25: ...MT FILM 16 5K FD 1 6W R3407 401 162 3104 MT GLAZE 3 3K JA 1 10W R3408 401 162 2800 MT GLAZE 1 8K JA 1 10W R3421 401 024 6700 CARBON 100 JA 1 6W R3422 401 024 6700 CARBON 100 JA 1 6W R3440 401 256 380...

Page 26: ...31 610 031 9998 PIPE CORE L432 610 031 9998 PIPE CORE L444 645 036 7465 COIL LINEARITY L445 610 000 0339 COIL 610 230 8822 COIL L601 610 031 5938 LINE FILTER 645 017 6159 LINE FILTER DIODE D008 407 01...

Page 27: ...R X351 645 030 1889 OSC CERAMIC 503KHZ X801 645 004 1938 OSC CRYSTAL 32 768KHZ 645 004 1945 OSC CRYSTAL 32 768KHZ 610 278 5272 ASSY PWB CRT F2GE 1AA0B10E526BB TRANSISTOR Q701 405 041 6507 TR 2SC2621 D...

Page 28: ...e following parts list be used for components replacement pointed out by the mark Note Parts order must contain Service Ref No Part No and descriptions The main PCB unit will be supplied without tuner...

Page 29: ...d 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 signif...

Page 30: ...IC001 409 389 4607 IC LA4600 IC191 409 241 5407 IC BA178M05T 409 172 1509 IC MC78M05CT 409 320 5700 IC UPC78M05AHF IC201 410 342 8907 IC QXXAVB488 M IC3401 409 432 7807 IC UPC1851BCU IC501 409 340 19...

Page 31: ...76 403 041 8804 ELECT 10U M 16V C601 404 072 7705 MT POLYEST 0 068U M 250V 404 079 6503 MT POLYEST 0 068U M 250V C602 403 262 1608 CERAMIC 100P K 1K C607 404 078 7600 ELECT 270U M 400V C608 404 073 51...

Page 32: ...33 401 150 6100 MT GLAZE 2 2K JA 1 10W R246 401 162 3104 MT GLAZE 3 3K JA 1 10W R248 401 256 7704 MT GLAZE 3 9M JA 1 10W R261 401 162 3104 MT GLAZE 3 3K JA 1 10W R262 401 025 7409 CARBON 220 JA 1 6W R...

Page 33: ...256 1702 MT GLAZE 33K JA 1 10W R886 401 162 3005 MT GLAZE 22K JA 1 10W R887 401 162 3005 MT GLAZE 22K JA 1 10W R888 401 162 2909 MT GLAZE 220 JA 1 10W R891 401 162 2909 MT GLAZE 220 JA 1 10W R892 401...

Page 34: ...01 645 005 5706 JACK PHONE D3 6 645 006 4708 JACK PHONE D3 6 K1111 645 002 0568 TERMINAL BOARD PS602 408 013 3801 TH PTH451C262BF140M270 SW1901 645 027 7382 SWITCH PUSH 1P 1TX1 SW1902 645 027 7382 SWI...

Page 35: ...MT GLAZE 470 JA 1 10W R724 401 065 4604 OXIDE MT 12K JA 2W R725 401 009 1508 CARBON 2 7K JA 1 2W R732 401 015 6504 CARBON 2 2 JA 1 4W R741 401 162 2404 MT GLAZE 1 2K JA 1 10W R744 401 162 3609 MT GLA...

Page 36: ...Oct 00...

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