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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KP7200 | INCORRECT TUNING OPERATION | TV would scan but would not stop on stations. | ||
| Sony | CFS45 | DEFECTIVE SIDE PLATES | Plastic handle side plates on this model break. Handle sideplates may not be strong enough to carry weight of this model under allstress conditions. | ||
| Sony | KV8000 | POOR H SYNC | Set displayed poor horizontal sync. | ||
| Sony | KV1945R | COLOR DISTORTION, REPLACE IC301 | No blue, yellow picture. Base voltage at Q701 was 0 volts.Output at Pin 28 at IC301 0 volts, input to IC good. | ||
| Sony | KV1913 | NO PICTURE | Loss of vertical deflection. | ||
| Sony | KV2643R | SHUT DOWN, REMOVED L810 | This unit would shut down by itself. The picture wasexpanded in size (a lot of overscan). The HV was 3KV lower. | ||
| Sony | KV2643R | SOUND NO MUTE DURING CHANGE, REPLACED Q042 | Sound would not mute during channel change. Checked Pin #13of IC032 positive pulse was present during channel change, therefore,Q042 was suspected. | ||
| Sony | KV2643R | CLOCK DISPLAY DIMS, REPLACED DISPLAY | Clock display dims when touched by hand. Display flickerswhen someone walks by TV. | ||
| Sony | KV2601 | NO COLOR, REPLACED SHORTED CV301 | After about 2-3 minutes of playing time color disappeared.Found CV301 actually physically shorted to 0 ohms. | ||
| Sony | KV2601 | NO UHF, REPLACED Q203 | During programming unit would skip UHF band. 12V B+ was low(10.5V), Q203 was bad. | ||
| Sony | KP5000 | INCORRECT FUNCTION FOR TUNING, Q2211 LEAKY | During programming unit would not stop on active channels inone direction from low to high. | ||
| Sony | KV2644R | NO TUNING LOCK, REPLACED C219 | Would not lock on to any channel in program. AFT voltage pin#10, IC201 down to 0.4V. | ||
| Sony | KV2643R | CHANNEL DRIFT, REPLACED IC2003 | Set would drift off channel during operation. Found IC2003(display memory) apparently loading control IC and changing PWM voltage. | ||
| Sony | KV2643R | RETRACE LINES, BROKEN LAND ON C BOARD | Servicer informed me of a problem where the picture would benormal and then get brighter and go into retrace and then back to normal.Then it again would repeat itself. | ||
| Sony | KV2643R | DEAD, REMOVE JW54 AND OTHERS | No operation above 100VAC. H. voltage was at 23KV. Servicerhad replaced flyback and IC501. Voltage to shutdown circuit was 5.7V.Removed L801, H. voltage went up to 26KV. -HQ COMMENTS: We will publish updated info on this problem shortly. Asfor now c |