Dicas Reparação
Modelo - Chassis
Pesquisa: Enviar Dica Resolvida
Resultados 81386
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2675R | SNOWY PICTURE, Q-201 UHF AMP ON "A" BOARD | Picture was snowy on both VHF/UHF. | ||
| Sony | KV2675R | CRT ARCING AND VERTICAL ROLL, CRT SOCKET | Set would arc (more like a loud tick noise) then picture wouldvertical roll for about 20 to 30 seconds, until the next ticking noise. | ||
| Sony | KV2650R | SNOWY PICTURE, REPLACED BAND SWITCH IC002 | The set would occasionally tune in the VHF low channels. Allother channels were snow. We found the band switch IC to be defective.This is becoming more common problem with the units using the LA7920 IC. | ||
| Sony | KV2649RX | MISLANDING, REMOVED SHORT | When viewing pix at low brightness, the edges of the rasterappeared reddish in color. Inspection revealed slight distortion in redinput signal to video drivers. I found the output terminal on the AVboard had a lead shorting to the junction of R12 and R | ||
| Sony | KV2649R | NO VERTICAL DEFLECTION, REPLACE C508 | The set had two problems. No vertical deflection. Thewaveform at Pin 7, IC502 was pulsing, all the voltages were fine. FoundC508 had a 47uF instead of a 1uF that the manual calls for. The secondproblem was no high band. Found the UHF and VHF output | ||
| Sony | KV2145R | NO V DEFLECTION, REPLACE Q502/503 & R520/R555 | Vertical problem. | ||
| Sony | KV1961 | SPUTTERING OF THE AUDIO, REPLACED LAMP | On channel 7 only, you would hear a sputtering of the audio. | ||
| Sony | KV1952RX | DEAD, REPLACE HDT T501 | Unit came in dead, found horizontal output (2SD1938) shortedand fuse open. After replacing output transistor and fuse, foundincorrect waveform on horizontal drive transistor. Found HDT (T501) tobe defective. | ||
| Sony | KV1946R | INTERMITTENT SHUT DOWN, LEAKY D502 | Unit would shut down intermittently. | ||
| Sony | KV1924 | SPOT BURNING ON CRT | Set came in for a burnt spot center of screen (size about1/8 inch). Servicer replaced picture tube and after two months set camein again, same problem with new tube. | ||
| Sony | FD20A | NO PICTURE, REPLACED LEAKY C603 | No picture. | ||
| Sony | KX2501 | INTERMITTENT SHUT DOWN, REPLACE HVR BLOCK | Unit would shut down intermittently. | ||
| Sony | KV9200 | RETRACE LINES ON DARK SCREEN | This unit had retrace lines with brightness control turneddown. | ||
| Sony | KV5300 | TUNER ASSEMBLY TOUCHING FUSE HOLDER | Tuner assy touching fuse holder F601. Repaired six units withsame problem. | ||
| Sony | KV2675R | NO VIP, RESET PROCEDURE | Set snaps then VIP will not work, screen scrambled (1 end-user, 2 dealers). Also, IC104 (CX7958) will kill remote (another set).Snapping seems to come from pix tube. -HQ COMMENTS: As a first approach to the problem, please perform thefollowing reset pr |