Dicas Reparação
Modelo - Chassis KV2783R
Pesquisa: KV2783R Enviar Dica Resolvida
Resultados 11
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2783R | NO VIDEO ONLY LINES, REPLACED Q101 | No video, no signal coming out on IC301/pins 24, 25, and 26which are the RGB signal. Voltage on IC301/pin 29 is high, above normal,4.2v this made RGB to mute. | ||
| Sony | KV2783R | NO CONTROL OF VOLUME OR OTHER AUDIO FUNCTIONS, IC860 | Can not control the volume, no muting no stereo. | ||
| Sony | KV2783R | HUE CHANGE ABOVE CHANNEL 35, ADJ AFT COIL SLIGHTLY | Color and hue are fine from channel 2-35. When a channelabove channel 35 is selected, the hue will change flesh tones to green.Tried service bulletin No. 273 but it did not help. | ||
| Sony | KV2783R | INTERMITTENT TUNER DRIFT, RESOLDER T-203 CONNECTIONS | Tuner would intermittently drift off channel. Heating orcooling circuit yielded no results. | ||
| Sony | KV2783R | PART NUMBER MISSING, PINCUSHION Q-553 | Manual does not show a part number for the pincushion outputtransistor. Schematic calls for a 23D1134, in the set is a 2SD1406. | ||
| Sony | KV2783R | DEAD, REPLACE FBT AND FUSE | Fuse F501 was blown, after replacing fuse, humming noise fromflyback and waveform at hor. out. collector had several humps. Alsocredit J. Shirley with this report 12/08/92. Also pertains to serialnumber 7004483. | ||
| Sony | KV2783R | POP IN SOUND AT SPEAKERS/EMPTY CHANNELS, SEE FPR H1195 | Pop in sound at speakers when going thru empty channels ormomentary flash on screen. | ||
| Sony | KV2783R | POP IN SOUND, ADD REG CIRCUIT ON "X" BOARD | Pop in sound when changing channels and going thru non-activechannel or when scene changes from dark to bright. Found 18V line voltagejumping. | ||
| Sony | KV2783R | SLEEP LIGHT ON, SET WAS DEAD, REPLACE IC-501, R-555 N DIODES | Sleep light on, set was dead. Both damper diodes shorted,R555 on 24V line was open. Troubleshooting revealed no switching pulseat base of Q553 which probably accounted for defective damper diodes.Further check revealed IC501 to be defective, causing R5 | ||
| Sony | KV2783R | REF #53 AND #86 ARE REVERSED | Ref. 53 and 86 are reversed. -HQ COMMENTS: We will issue bulletin on this. | ||
| Sony | KV2783R | (S) IN SOUND, ADJ RV-830 ON "X" BOARD | Customer complained about (S) in sound. |