Dicas Reparação




Modelo - Chassis


Pesquisa: Enviar Dica Resolvida
Resultados 81365
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV1961
SPUTTERING OF THE AUDIO, REPLACED LAMP On channel 7 only, you would hear a sputtering of the audio.
SonyKV1952RX
DEAD, REPLACE HDT T501 Unit came in dead, found horizontal output (2SD1938) shortedand fuse open. After replacing output transistor and fuse, foundincorrect waveform on horizontal drive transistor. Found HDT (T501) tobe defective.
SonyKV1946R
INTERMITTENT SHUT DOWN, LEAKY D502 Unit would shut down intermittently.
SonyKV1924
SPOT BURNING ON CRT Set came in for a burnt spot center of screen (size about1/8 inch). Servicer replaced picture tube and after two months set camein again, same problem with new tube.
SonyFD20A
NO PICTURE, REPLACED LEAKY C603 No picture.
SonyKX2501
INTERMITTENT SHUT DOWN, REPLACE HVR BLOCK Unit would shut down intermittently.
SonyKV9200
RETRACE LINES ON DARK SCREEN This unit had retrace lines with brightness control turneddown.
SonyKV5300
TUNER ASSEMBLY TOUCHING FUSE HOLDER Tuner assy touching fuse holder F601. Repaired six units withsame problem.
SonyKV2675R
NO VIP, RESET PROCEDURE Set snaps then VIP will not work, screen scrambled (1 end-user, 2 dealers). Also, IC104 (CX7958) will kill remote (another set).Snapping seems to come from pix tube. -HQ COMMENTS: As a first approach to the problem, please perform thefollowing reset pr
SonyKV2670R
INCORRECT DISPLAY (AUX) ON THE SCREEN, USE KV-2675R REMOTE On screen display the following display selections muting,sleep, channels were displayed but AUX. appeared also. This happenedwhile the dealer was demonstrating the KV-2670R and I was observing.End-user came in also and wanted to know how to get rid of
SonyKV2670R
UNIT WILL NOT SHUT OFF, "A" BOARD IC-103 REPLACED Unit will not shut off.
SonyKV2648R
NO PICTURE NOR SOUND, RESOLDER INSIDE PRESCALER(BTP981) No picture nor sound, snow, VC control not working (0 volts).
SonyKV2145R
PIC FOLDS OVER AT TOP, REPLACED D504/505/506 After two hours, picture folds over at top. Replace 10 kohmresistor (R520) as per FPR of Feb. 1984 but problem still occurred.
SonyKV1975R
NO VIP FUNCTION, REPLACE IC105 Two units without VIP function. Remote, pix, sound andchannel display OK.
SonyKV1975R
NO VIP FUNCTION, RESET IC 105 Servicer had two KV-1975R in which VIP would not function.Used the following procedure to reset the VIP circuit.


Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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