Dicas Reparação




Modelo - Chassis


Pesquisa: Enviar Dica Resolvida
Resultados 81349
Pedir dica reparação
MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyXR550R
HEAD ASSEMBLY DOES NOT LOCK IN Head transport comes in and out continuously.
SonyD3
UNIT SHUTS DOWN Unit starts to play then advances tracks very fast and stops.
SonyCCDV8AFU
NO ATF Unit would not lock up on playback. Traced problem to bufferQ106. Base of buffer had no DC. L106 connected to base, other side ofcoil had proper DC, found L106 open. On page 135 of Service Manual, thereis a mistake, diagram shows (2) L106.
SonyCCDV3
NEED PART NUMBERS FOR FLAT CABLES (MV-11 BD TO SS-70 BD) P/N of (2) flat cables from MV-11 board to SS-70 board(see Page 177). -HQ COMMENTS: The part numbers are on Page 185 of S/M.18 Pin 1-558-895-1122 Pin 1-558-896-11
SonyCDP310
INCORRECT PLL ADJ PROCEDURE Cannot read PLCK during PLL adjustment.
SonyXR740
UNIT WOULD LOCK UP WHEN SEEK BUTTON WAS PRESSED System control lock out would occur when seek button wasdepressed, otherwise all function buttons worked OK. By shutting unit offand then back on, it would work again until seek button was pressed.This symptom was noted on another unit (XR-787R) in the
SonyXR787R
UNIT WOULD LOCK UP WHEN SEEK BUTTON WAS PRESSED All functions worked OK until seek button was depressed.Then unit would momentarily search up and then stop. At this time,system control lock out occurred that is, no function button wouldoperate. By shutting receiver off and turning it back on, it wou
SonyCDP310
DEFECTIVE OPTICAL DEVICE Unit will not read TOC or play discs.
SonyEVS700U
PCM DROPOUT Dropout occurs during PCM mode. Stereo light flashes.
SonyKV25XBR
NO PICTURE - SLEEP LIGHT ON These three units had a mass failure of the velocitymodulation circuit. D1651 shorted and opened the resistors and shortedthe transistors. The C board had dark spots on it around the resistors.The symptoms on these units were only sleep light on with n
SonyKV2775R
HORIZONTAL SQUEAL BY YOKE This unit had an intermittent horizontal squeal caused bythe yoke. Attempts at covering the coils with silicone rubber, asinstructed by the Tech. Dept., did not resolve the problem.
SonyKV1926R
INTERMITTENT CONVERGENCE, CRT This unit has intermittent convergence caused by the tube.
SonyHVM302
NEED P/N FOR FORMER IC3 (DF-BD) - SEE B & W S/B #75 S/M doesn't show P/N for former IC3 MSM6205GS-K (24 Pin). -HQ COMMENTS: P/N listed in Semiconductor Replacement Handbook is8-759-919-98. We will update this S/B to include this P/N.
SonyEVA80
UNIT WOULD NOT LOAD Unit would not load. Gear retaining clip missing for gearassembly. Could not be found anywhere in the unit.
SonyCDXR88
DC-DC CONVERTER Unit dead. No display. All fuses good. This was the secondunit the customer has had, first unit failed in the same manner. Checkedfor 12 volts OK, 30V OK -5 was 1.13V and -5 OK. Isolated +5 volt linefrom converter. Found no shorts, used bench suppl


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.

Verifique se o esquema está disponível na área de downloads