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SERVICE MANUAL   Colour Television   

Product Code: 1 113 261 05

Original Version

Chassis Series: LA4-A

F3DF

FILE NO.

Model No. 27TC643

Service Ref. No. 27TC643-00

(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   . . . . . . . . .628 (W) 

568(H) 

523.5(D)mm

Weight  . . . . . . . . . . . . .approx. 27.7Kg 

Specifications subject to change without notice.

NOBLEX

NOBLEX

NOBLEX

Содержание 1 113 261 05

Страница 1: ...cifi 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 ban...

Страница 2: ...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 sam...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 9: ...L 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 16: ...the service mode press the MENU button TP 318 L Minimum leakage 4KHz 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...

Страница 17: ...e control handset Or will automatically return to normal 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 Pre...

Страница 18: ...ting 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 side more than 5mm AJ1 This TV...

Страница 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...

Страница 20: ...0 287 9582 LABEL RATING 10 645 042 8968 ASSY REMOCON JXMMA 11 610 288 0397 RC BATTERY LID 12 645 004 5493 ANTENNA CONVERTER 610 288 0267 INSTRUCTIONS MANUAL Key No Part No Description Key No Part No D...

Страница 21: ...September 00...

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