Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18940
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV25DXR
BAR IN MIDDLE OF PICTURE, REPLACED IC502 AFC CONTROL Ghost image overlays normal video on screen. Horizontalblanking bar appears in middle of pix.
SonyCDP302
INTERMITTENT SKIPPING Unit would play normally for a time then start to skip. Afterwarmup it would occasionally fail to read TOC. I noticed that the EFbalance drifted after warmup and that freezing the RF amp IC would cause asignificant change in DC centering of traverse wa
SonyKPR36XBR
BROKEN PICTURE CONTROL BUTTONS, REPLACED FRONT ASS'Y Picture up/down buttons broken.
SonyCDP302
AMS FUNCTION DOES NOT WORK RELIABLY Noisy unreliable AMS. No other problem noted.
SonySLHF450
NOISE IN PLAYBACK During playback noise getting into video resulting in horiz.clicks getting into pix.
SonyKV1997R
ONLY POWER ON & NO POWER OFF, SHORTED C133 Only power on, could not power off. Sleep light would notcome on at power on. No function. Servicer had replaced IC103 and IC105still same problem. Had V pulse Pin 4, clock OK, reset OK, had noiseat H sync.
SonyKPR4600
NO CHANNEL MEMORY,REPLACED Q-308 AND D-339 Above symptoms were intermittent when turning set on and offwith power button. Reset pulse was insufficient. Found a leaky base toemitter Q308 and leaky D339.
SonyKV2091R
LOW AUDIO, CHANGE VALUE OF R842 TO 300 OHMS Customers are complaining about the low volume delivered bythis model at max setting.
SonyKPR4600
OUT OF CONVERGENCE AT MAX BRIGHTNER, REPLACED Q-651 At max brightness, convergence would shift vertically, redabove and green below, with blue in the middle. Found leaky Q651 causingpoor regulation. B+ line about 5 volts lower.
SonySLHF750
NOISE IN PLAYBACK PICTURE During the playback of self or prerecorded tapes, two or threebright spots, one line thick by 1/2 to 1 inch length on picture. Theposition of spots changes left or right by turning the tracking knob.Did not have any other unit to switch the boards for i
SonySPP100
MISSING P/N - MOUTHPIECE SPEAKER Need P/N for SP201 on Page 28 and also for flex board. -HQ COMMENTS: P/N for flex PCB is 1-618-500-11. It is reference #910.SP-201 is included in the front cabinet assthe cabinet is incorrect in the S/M. It should be X-3327-409-1.
SonyTCK96R
NO P/N FOR PANEL, CASSETTE HOLDER Manual shows no part number for panel, cassette holder. -HQ COMMENTS: The part number is 3-558-343-00.
SonyVCT150K
P/N FOR LOCK LEVER - LEFT SIDE Page 4 of S/M shows Ref. No. 7 (2-391-606-00). However, thisP/N is for lock lever - right side. We need P/N of lock lever - left side(The threads are opposite LL-R). Please advise. -HQ COMMENTS: P/N is 2-392-808-01. A S/B will be issued shortly.
SonyCCDV8AFU
ALIGNMENT METHOD INCORRECT On page 205 of S/M, adjustments in AF section 1-34-3 areincorrect. Test point for 5.5V adj. should be collector of Q022, notemitter. VCF adj. is unclear. D001 cathode must be shorted to 1.7V line.Also, in offset adj., it specifies shorting 1.7V line t
SonyWM10RV
GEAR GRINDING AND NO TAKE UP TORQUE This unit had a gear grinding noise and there was no take uptorque.


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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