Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18938
Pedir dica reparação
MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV2602
PICTURE DISTORTION, REPLACED C508 At turn on full vertical sweep then gradual loss from top andbottom until after 5 minutes picture would be approx. half size.
SonyKV2601
NO COLOR, REPLACED 3.58MHZ CRYSTAL No color.
SonyKV2141R
SET LOCKS ON CH2, SHORTED Q2201 Display says channel 2, no matter which channel selected,tuning OK.
SonyKV1948R
CH 14 WOULD NOT LOCK, ADJ T202 AND T203 Ch. 14 would not lock up on a cable co. using the HRC cablesystem, all other channels operate properly.
SonyKV1947R
PICTURE DISTORTION, REPLACE IC501 Total loss of vertical sync.
SonyKV1945RS
NO COLOR, REPLACED BPT, T301 No color.
SonyKV1945RS
NO UHF Q008 SHORTED Would not receive UHF channels.
SonyKV1945RS
INCORRECT TUNING, REPLACED X003 No channel indicator (blank), no tuning of signal. Voltageson IC001 and IC002 were all wrong. Servicer had changed both chips andchecked the clock freq. of IC001 CL1 with a counter, 400kHz. When clockwas finally checked with a scope PP V was only 0.5V
SonyKV1923
NO PICTURE, HAS SOUND, REPLACED C516 No picture, just sound.
SonyKV1922
PICTURE NOISE Three inches wide bar at right side of screen top of bottomonly on HBO cable channel and only at customer's home only on thisparticular unit, other units tried and work fine. Servicer blamingcable co. Found 150pF capacitor between Q512 collector and gr
SonyKV1915
PICTURE DISTORTION One and half inches of top of picture is black.
SonyKV1912
TUNER LOCKED ON CH 2 Tuner locked on channel 2.
SonyKV1910
PICTURE STRETCHING AFTER WARM UP Picture stretches vertically after about one hour operation.
SonyKV1512
DEAD This unit initially appeared to have a shorted SG613 and2SC867. Upon powering up the set with a DC supply it was noticed thatthe waveforms were irregular. Closer examination revealed R522 hadchanged in value.
SonyKP7220
KEYSTONE, REPLACED D5313, D5312, Q5537 Keystone effect on all three tubes. Pix normal at top butnarrow at bottom.


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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