Dicas Reparação




Modelo - Chassis KV1545R


Pesquisa: KV1545R Enviar Dica Resolvida
Resultados 12
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(Chassis)
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SonyKV1545R
VERT BIAS LINE ACROSS THE SCREEN,USE UPC1368H2 8-759-103-68 Installed replacement IC and now have a blanking bar acrossthe center of the CRT. Please advise ASAP. If another UPC1358H is in-stalled, everything is ok. -HQ COMMENTS: We are working to find a solution to this problem we willinform you accordingly.
SonyKV1545R
POOR REMOTE SENSITIVITY, REPLACED L1 Unit had poor remote sensitivity (4 inches). Found coil L1shorted. Resistance should be 22 ohm, it was 2 ohms.
SonyKV1545RS
INTERMITTENT JITTER IN PICTURE, REPLACED R235 This set had a history of intermittent pulling in the pictureand also vertical jitter. Inspection of waveform at output of videodetector was fine. The waveform at base of video amplifier (Q202) wasexactly like the waveform at its emitter, i.e. no ampli
SonyKV1545RS
NO TUNING FUNCTION, JUMPER JW1 NOT CONNECTED No tuning. No fluorescent display of channel, tuner appearsdead.
SonyKV1545RS
INCORRECT REMOTE OPERATION,REPLACED IC101 Pressing on/off or picture up buttons on remote transmitterwould not affect receiver.
SonyKV1545RS
VOLUME RANGE TOO LIMITTED, CHANGE R102 TO 100K Sound is either too low or too high. Customer states thathe thinks the volume should move from low to high in a slower manner,rather than jump from low to high. -HQ COMMENTS: We can satisfy the customer by changing R102 resistorvalue from 10k to 100k.
SonyKV1545RS
SHORT RANGE REMOTE OPERATION, REPLACED D1 Customer complained of short range, approx. 12 feet.
SonyKV1545R
NO MANUAL OR REMOTE FUNCTIONS, REPLACED X002 No manual or remote functions. No 12 volt on Pin 12, IC004.Clock frequency was correct but only 0.5Vpp. Voltage on Pins 1 and 42 ofIC004 was the same on both pins, 0.6V.
SonyKV1545R
REMOTE ONLY WITHIN 10 INCHES, REPLACED Q2 "N" BOARD Remote had to be within 10 inches of TV unit to activatevarious modes. Found Q-2 amp on N board with base emitter leakage.
SonyKV1545R
INTERMITTENT RETRACE LINES IN PICTURE, REPLACED R722 After the unit was energized, fine retrace lines wouldappear after 5 seconds and there was no control of brightness. G2voltage would not go low enough and G1 voltage was 125V DC instead of 30VDC. Wrong value resistor had been inserted in board (R722) i
SonyKV1545R
NO TUNING, REPLACED PRE-SCALER No signal on any channel except sound on Ch. 13 only. Ifexternal voltage was introduced to VC line I could get some of the highband channels, which indicate tuner was good.
SonyKV1545R
REMOTE OPERATION RANGE TOO SHORT, OPEN GROUND "N" BOARD This unit had poor shield ground on N board causing shortrange on remote when set was on.


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