Dicas Reparação SONY
Modelo - Chassis
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Resultados 18938
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2648R | SHUT DOWN, REPLACE IC601 AND OTHERS | Shut down. Indicator light comes on momentarily after turnon. | ||
| Sony | KV2602 | DEAD, REPLACED Q601, D501, B RECT, ETC | Set dead. No sound, no picture. Found defective the follow-ing parts: bridge rect. power module, Q601 transistor, D501 zener diode,and 5 amp fuse. | ||
| Sony | KV1946R | DEAD, REPLACE Q901 AND Q602 | No sound - no picture. Found Q901 and Q602 shorted. | ||
| Sony | KV1945RS | SHUT DOWN, SOLDER SPLASH | Immediate shut down after turn on - less than 1/4 second.Dealer suspected shut down circuit or power supply but could not evenpower on oscillator. All sweep voltages checked with meter showed 0 ohmsat 15V line. 15V line on MD board shorted to ground. | ||
| Sony | KV1945R | PICTURE DISTORTION, REPLACED HLC | Complaint about horiz. linearity specifically when writingtransversed screen. Replaced HLC with P/N 1-459-136 (HLC from 1930R).Problem resolved. Expect inductance of HLC (1-459-316) too low. Pleasesupply definite fix - have had 3 complaints to date. | ||
| Sony | KV1923 | SOUND DISTORTION, REPLACED D2006 | When set was first powered up, volume was maximum and couldnot be lowered. Unit was turned off and restarted with no sound now atall. Checking output of A/D convertor, TNS3701BNS, found no PWM signal.Measured standby supply voltage, Pin 8, with power o | ||
| Sony | KV1722 | SET FAILS AFTER A FEW DAYS, REPLACED R569 | Intermittently this unit would fail after servicing for astart circuit problem anywhere from one week to two months later. Theunit had been in 7 times in the last 6 months. After running for aconsiderable time under a heat lamp the voltage at the colle | ||
| Sony | KV1207 | POOR VERTICAL | VC amp leaky. Repaired by replacement Q101, 2SC1815 withreplacement 2SC1364. Unit was OK for 6 weeks, then Q101 failed again insame way. Replaced and checked circuit. Found no reason for failure.Perhaps static problem. Enclosed you will find the ori | ||
| Sony | KP5040 | TEST SIGNAL INTERFERENCE, INSTALL CAP | Cross hatch bleed through on KP-5040. Bar pattern when view-ing a weak incoming active channel. This condition sometimes can be moreeasily observed by setting the TV line switch S907 to the line position.In this configuration a faint bar can be seen ru | ||
| Sony | KP5040 | PICTURE DISTORTION (OSCILLATION), ADD CAP | Oscillation (snivet) down center of screen noticed on set inclose proximity. Also had white horizontal lines similar to ignitionnoise. | ||
| Sony | KP5040 | COLOR DISTORTION, REPLACED IC3301 AND CRT | Red very weak, unable to set gray scale. Bias wrong onpicture tube. Changed IC3301 corrected bias, but red picture tube bad,had to change it too. | ||
| Sony | KP5020 | INCORRECT CONVERGENCE | All three colors would not center properly. Found D5501shorted on DA board. Also schematic is labelled wrong, voltage afterresistor R5597 should read +5 volts but schematic indicates +12Vdc onDA board. | ||
| Sony | KX2501 | NO COLOR, REPLACED IC1302 | No color under any input, faint retrace lines in black andwhite picture. Sometimes flickering of colored snow but out of colorsync. | ||
| Sony | KV9000 | TV WOULD NOT COME ON | TV would not always come on. Found C508 intermittently open. | ||
| Sony | KV2648R | COLOR CONFETTI ON B/W, ADJ CV301 | Color confetti on B/W telecast. |