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TV4K-NICAM/A2/TXT

COLOUR TELEVISION RECEIVER

SERVICE MANUAL

SPECIFICATION

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SYSTEM PAL/SECAM,B/G,I,NICAM/A2

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POWER INPUT AC 170-245V(50/60Hz)

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POWER CONSUMPTION 85W

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AERIAL IMPEDANCE 75OHM UNBALANCED

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TUNER VOLTAGE SYNTHESIZER
TUNING

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RECEIVING CHANNELS VHF-L E2-S6

VHF-H S7-S41
UHF E21-E69

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PROGRAMME MAX.99 PROGRAM
MEMORIES

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PICTURE TUBE 25”,28”,110

°

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SOUND OUTPUT 3.0W X2

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SPEAKER 8W 8 OHM X2

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AV JACKS FULL SCART

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Содержание TV4K-NICAM/A2/TXT

Страница 1: ...AM A2 POWER INPUT AC 170 245V 50 60Hz POWER CONSUMPTION 85W AERIAL IMPEDANCE 75OHM UNBALANCED TUNER VOLTAGE SYNTHESIZER TUNING RECEIVING CHANNELS VHF L E2 S6 VHF H S7 S41 UHF E21 E69 PROGRAMME MAX 99 PROGRAM MEMORIES PICTURE TUBE 25 28 110 SOUND OUTPUT 3 0W X2 SPEAKER 8W 8 OHM X2 AV JACKS FULL SCART 2 ...

Страница 2: ...he PRODUCT SAFETY NOTICE below SAFETY PRECAUTION WARNING Service should not be attempted by anyone unfamiliar with the necessary Precautions on this receiver The following are the necessary precautions to be observed before servicing this chassis 1 Since the power supply circuit of this receiver is directly connected to the AC power line An isolation transformer should be used during any dynamic s...

Страница 3: ...ust be switched off at least 15 minutes in order that the automatic degaussing circuit operated properly External degaussing is necessary if the automatic degassing proves ineffective after the set is moved B ADJUSTMENT CAUTION To avoid X ray hazards and result in a nominal display width B voltage must be set in the scale of 140 0V 1 0V 1 Make sure the AC power supply is 230V 50Hz 2 Switch on the ...

Страница 4: ...ithin the Service 1 mode can be accessed using UP DOWN keys and the selected item can be varied using LEFT RIGHT keys The parameters controlled in the Service 1 menu are a Red Gain 0 63 b DC Red 0 63 c Green Gain 0 63 d DC Green 0 63 e Blue Gain 0 63 f DC Blue 0 63 g Apr Threshold 0 g LOGO the first show the length of logo and the followed is the logo When in Service 1 menu if OK key is pressed Se...

Страница 5: ...t Feed a 33 9 MHZ carrier as IF input and adjust VCO Coarse L1 and VCO Fine L1 to get VCO OK Status If the cursor is in VCO Coarse L1 or Fine L1 and the display shows VCO OK status then pressing of MENU key will automatically put VCO fine for L1 to the Centre of the 60 to 60 KHz window When in Service 2 menu if OK key is pressed Service 3 menu appears and the display is as follows The parameters c...

Страница 6: ...3 APR Feature 0 ON 1 OFF reg10 b2 Black Strech 0 ON 1 OFF reg0b b1 Auto Flesh 0 ON 1 OFF reg14 b0 Coring 0 ON 1 OFF reg0f OPTION3 b4 PIF overmodulation 0 OFF 1 ON reg01 b3 Market_France secam LL 0 OFF 1 ON b2 Manual Auto cutoff 0 1 reg 0d b1 Mute pin low high to contol the speaker 0 1 b0 TDA7449 TDA7439 0 1 OPTION4 b5 VHF UHF SELECTION 0 VHF UHF 1 UHF b4 SCART2 0 OFF 1 ON b3 RGB 0 OFF 1 ON b2 SVHS...

Страница 7: ...IAN RUMANIAN 1 POLISH FRENCH ESTONIAN CZECH GERMAN SERBIAN LETTISH RUMANIAN 2 ENGLISH FRENCH SWEDISH CZECH GERMAN PORTUGUESE LETTISH RUMANIAN 3 ENGLISH FRENCH SWEDISH TURKISH GERMAN PORTUGUESE LETTISH RUMANIAN service command 1 PP exit 2 OK switch between the service menu 3 AV auto VCO adjust 4 MUTE one line gain 5 ANALOG sub brightness adjust The AV2 should not be set while the RGB is set on ...

Страница 8: ...1 5 9 6 7 8 ñ ò 2 3 4 ...

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