Dicas Reparação
Modelo - Chassis KV1946R
Pesquisa: KV1946R Enviar Dica Resolvida
Resultados 23
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1946R | VERTICAL FOLD OVER, REPLACED C529 | Vert fold over from top of pix. | ||
| Sony | KV1946R | SQUEAL - REDUCED PICTURE SIZE, REPLACED L-904 | Unit squealed and displayed unsynchronized picture withreduced height and width. | ||
| Sony | KV1946R | DEAD, REPLACED C556 | Unit was dead, with an external DC source, turned on oscilla-tor, connected variac, brought it up to 70VAC, output of oscillator wasgood but to the base of driver distorted. Found C556 leaky. (Also thehorizontal output had shorted and fuse burned.) | ||
| Sony | KV1946R | TUNING IS UNSTABLE, IF IC SUB? | Tuning is unstable, hard to lock station, memory is notworking well. | ||
| Sony | KV1946R | DEAD, REPLACED C901 | Unit blows fuse F602 whenever power is applied. Found capaci-tor C901 shorted. | ||
| Sony | KV1946R | INTERMITTENT SHUT DOWN, LEAKY D502 | Unit would shut down intermittently. | ||
| Sony | KV1946R | DARK PICTURE, R715 OPEN | Picture was dark. Measured screen voltage. Range was from105-185 Vdc. Found R715 reading in the megohms. | ||
| Sony | KV1946R | NO VERTICAL DEFLECTION, REPLACE C526 | No vertical sweep. There was no sign of a sync pulse atPin 19, IC501. DC voltage was OK at this point. Sync pulse was presentat Pin 21, IC501. Found C526 to be leaky. | ||
| Sony | KV1946R | POOR VERTICAL DEFLECTION, REPLACE C524 | This unit had only about 2 inches of vertical deflection. Wefound the voltage at Pin 13/IC501 to be very low (0.8V). Output from thedriver was also low. We found C524 to be leaky. This is an importantpart of the vertical sawtooth generator. | ||
| Sony | KV1946R | OVERHEAT, LEAKY D012 CAUSING R123 OPEN | R123 overheats and eventually open. | ||
| Sony | KV1946R | SHUT DOWN, REPLACED IC032 | Set would turn off when channel 3 was selected. Found signaldistorted out of microprocessor when 3 was pressed. | ||
| Sony | KV1946R | INTERMITTENT AUDIO, REPLACE L202 | Intermittent audio, sometimes would work for a few minutes andsometimes for a week. | ||
| Sony | KV1946R | NO OPERATION EXCEPT POWER, LEAKY D010 | Unit would not respond to hand unit other than to turn uniton. After set was turned on, no other remote function would work.Voltages at Pins 24/25 of IC001 on ME board too high. | ||
| Sony | KV1946R | PICTURE DISTORTION (V), REPLACE IC502 | Would not scan top 2 inches of picture V-size and lin. hadno effect, remove blanking and fills up picture. | ||
| Sony | KV1946R | INCORRECT TUNING OPERATION, OPEN L508 | Tuning OK, but would not hold channels in memory. |