Dicas Reparação




Modelo - Chassis


Pesquisa: Enviar Dica Resolvida
Resultados 81393
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySPP75
NO TONE DIAL Unit would not tone dial. Check for DTMF frequency at pin 18of IC-351. Found a single tone coming out of pin 18 instead of a mix oftwo tones to produce the number.
SonyKPR46EX32
SPOTS ON CRTS, OPEN R-519 Spot on the phosphor of all three CRTs.
SonyKPR46EX30
SPOTS ON CRTS, OPEN R-519 Spot on the phosphor of all three CRTs.
SonyKPR46DX10
SPOTS ON CRTS, OPEN R-519 Spot on the phosphor of all three CRTs.
SonyKPR46CX50
SPOTS ON CRTS, OPEN R-519 Spot on the phosphor of all three CRTs.
SonyKPR46CX35
SPOTS ON CRTS, OPEN R-519 Spot on the phosphor of all three CRTs.
SonyKPR46CX25
SPOTS ON CRTS, OPEN R-519 Spot on the phosphor of all three CRTs.
SonySPP75
NO MUTE When mute is pressed, audio is stopped from going out theline, but some audio is still heard in the handset speaker. Found pin 11of IC-601 was not going low. Traced line to pin 4 of IC-701 (microphonemute) and found the pin to be going low. Found pin
SonySTRGX67ES
UNIT GOES INTO PROTECT No ground at CNP503 on the rear amp board. Traced ground tovolume board CN509, the ground at this point went nowhere. Alsopertains to serial number 809901.
SonySLVR5UC
NO PLAYBACK VIDEO No video when playing back a tape. Note: Video boards YC-92and YC-93 plug in together. The plug would not stay together just bypressing them back together. The boards had a slight bow causing them tointermittently come apart. The plugs are CN-41 and
SonyEVS3000
EXCESS CHROMA NOISE AFTER TWO HOURS OR MORE PLAYBACK Excessive chroma noise in Playback after approximately twohours.
SonySLV595HF
DISTORTED ON SCREEN DISPLAY. PICTURE OK On screen display is distorted and drifts horizontally.
SonyCCDSP7
WRONG SCREWS FOR LAST FIVE MONTHS Supplement No. 1 on page 2 No. 170 3-730-883-01 one of my ser-vicers has been trying to get the correct screws for five months now.Kansas City Parts has been called numerous times about this. I've calledTechnical Department to get this fixed. Yesterday
SonySTRGX99ES
LOW OUTPUT IN RIGHT CHANNEL Unit has a low output in the right channel on all modes or nooutput on the Rear channel. This is the most typical problem with thismodel.
SonyCVPG700
NOT PRINTING When print function is activated, motors run but no mechanismmovement. Found that worm wheel (Ref. No. 163) would not engage to platenmotor (Ref. No. M-1401) due to burr on the worm wheel shaft. Because thisgear shaft is a component of the mechanism si


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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