| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2670R | DEAD SET, OPEN RELAY | Set could not be turned on at time of delivery. Servicer hasnot received service manual as yet and requested my help. Inspectionrevealed that the relay would not close. Relay winding was open. | ||
| Sony | KV2670R | NO PICTURE, H OUT Q-504 | Several units have had the horiz. output transistor Q504fail shortly after initial turn on. The devices seem to fail of theirown accord. We can find no other problem. Suggest replacement with asturdier device. | ||
| Sony | KV2643R | SHUTDOWN AFTER TWO MINUTES, REMOVED JW-54 | Unit would play for about 2 min. and then shut down. Puttingunit on variac at 90VAC, unit would play. | ||
| Sony | KV2101 | INTERMITTENT HIGH-PITCH NOISE, H LIN COIL L-803 | Intermittent high-pitch noise. | ||
| Sony | KV1917 | INTERMITTENT SHUT DOWN | Intermittent shutdown. | ||
| Sony | FD30A | NO AUDIO, OPEN GROUND BETWEEN G AND K BOARD | No audio. | ||
| Sony | KX2501A | DEAD SET, REPLACED D1514 | The power supply was whistling and there was no picture orsound. We found D1514 in the high voltage regulator to be shorted. Thispresented about 30 ohms to the 140V line. The fuse never opened. | ||
| Sony | KV2648R | HEAVY ARCING, RESOLDERED BROKEN ETCH | When set was turned on, heavy arcing would occur around theflyback. Servicer had replaced the flyback, which did not help. Foundground etch near T503 was open. This caused the flyback return to beopen. We discovered this by connecting the osc. ground | ||
| Sony | KV2647RX | DARK PICTURE OF CABLE CHANNELS | Dark picture on only the cable channels that were scrambled.The scrambler was made by Octagon Regency. The cable system was DavisCommunity Cable Co. in Davis, Calif. The problem with the cable scrambledchannels was with the horizontal sync. | ||
| Sony | KV2647RX | UNLOCK SIGNAL ON CABLE CHANNEL, REPLACE C208 AND ADJ T203 | Customer on cable unable to lock in on HBO channel 18. | ||
| Sony | KV2647R | NO DISPLAY TIMER FUNCTION, AC WIRES TO MF-7 REVERSED | Display time would be on but the time would not change whenthe set was off. When set is turned on, the clock would work until theset was shut off. | ||
| Sony | KV1924 | WEAK CRT | This unit looked like it had a weak CRT. | ||
| Sony | KV1714 | NO HV SYNC, LACK OF BRIGHTNESS | 1) No sync vertical 2) Vertical roll 3) Horizontal out offrequency 4) Picture is too dark. | ||
| Sony | KV1545R | POOR REMOTE SENSITIVITY, REPLACED L1 | Unit had poor remote sensitivity (4 inches). Found coil L1shorted. Resistance should be 22 ohm, it was 2 ohms. | ||
| Sony | KV2647RX | NO PICTURE ON CABLE, ADD RESISTOR WITH R054 | Set will not work on cable (HRC system). One fix was to puta 100 ohm resistor across R054. This seemed to work in the past. On thenew sets KV-2647RX this fix does not work in all cases. The 100 ohm willcause the set to hunt shift back and forth. Wha |