Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | CCDV110 | S/M PAGE 20 WHAT IS NATRIUM LAMPS? | Page 20 list natrium lamps under difficult conditions forlinear auto W.B. -HQ COMMENTS: Natrium is the same as sodium vapor lamps. | ||
Sony | TCD5 | PART NOT AVAILABLE - PAUSE SPRING | Part is on national back order. Pls assist in locating part. -HQ COMMENTS: There are none in the USA. Hopefully RPC (Tokyo Parts)will have some. Since this is an older unit though, they may not. | ||
Sony | KV25DXR | DARK PICTURE - NO COLOR SYNC | Set had very dark picture and no color sync. | ||
Sony | TAV5 | UNIT DEAD - NO POWER | Unit was inoperative due to malfunction of power supply.Static tests revealed Q901 base to collector short, R901 open and bothdiodes in IB901 circuit block were shorted. | ||
Sony | KV1500 | WHITE DOTS ACROSS TOP OF SCREEN | White dots across top of picture, looks like unblacked VITSsignal. Vert. height and lin. controls have correct range. | ||
Sony | KV25DXR | BAR IN MIDDLE OF PICTURE, REPLACED IC502 AFC CONTROL | Ghost image overlays normal video on screen. Horizontalblanking bar appears in middle of pix. | ||
Sony | CDP302 | 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 | ||
Sony | KPR36XBR | BROKEN PICTURE CONTROL BUTTONS, REPLACED FRONT ASS'Y | Picture up/down buttons broken. | ||
Sony | CDP302 | AMS FUNCTION DOES NOT WORK RELIABLY | Noisy unreliable AMS. No other problem noted. | ||
Sony | SLHF450 | NOISE IN PLAYBACK | During playback noise getting into video resulting in horiz.clicks getting into pix. | ||
Sony | KV1997R | 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. | ||
Sony | KPR4600 | 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. | ||
Sony | KV2091R | LOW AUDIO, CHANGE VALUE OF R842 TO 300 OHMS | Customers are complaining about the low volume delivered bythis model at max setting. | ||
Sony | KPR4600 | 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. | ||
Sony | SLHF750 | 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 |