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Modelo - Chassis
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Resultados 81366
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2649RX | NO FUNCTION, REPLACED D021 | Set cannot be turned off, except by the master switch.Channel up/down, volume up/down, picture, color etc. do not work. FoundD021 leaky. | ||
| Sony | KV2602 | VERTICAL DISTORTION, REPLACE C516 | This unit would play for approx. 20 minutes with no problem.After the circuit had sufficiently heated up the vertical would start tocollapse until there was only about 1/2 inches of deflection. We foundC516 to be defective. Monitoring the resistance ac | ||
| Sony | KV1975R | NO VIP FUNCTION, REPLACE IC103 | The above 6 units came randomly in a period of 2 weeks from2 servicers (all in the city), for no VIP function. Two could be resetfor VIP, the rest remain with no V/P function. Acquired a few new chipsand installed with very good results (CX-520-111N). | ||
| Sony | KV1913 | NO SOUND | No sound, but picture OK. | ||
| Sony | KV1554RWP | INTERMITTENT ON/OFF | Will come on intermittently. | ||
| Sony | KV1354R | DEAD, REPLACED IC-003 | This unit would not turn on and all other functions wereinoperative. We found IC-003/PLL controller to be defective. | ||
| Sony | KV1221 | NO TUNER LOCK IN, REPLACED N2503 | This unit worked fine except that intermittently the tunerwould not lock in on the C position. When the N position was selectedduring the failure mode then the C channel information would be present.We found the neon lamp N2503 to be the cause of the pr | ||
| Sony | KPR4600B | NO PICTURE | Set would lose display and scan channels. No picture.Traced problem to open T502. | ||
| Sony | KP7220 | ERRATIC TUNING AND DISTORTED PICTURE, REPLACED R547, R546 | Picture is dark and shrunken in on sides, will not staytuned on channel selected. Tuning is erratic. | ||
| Sony | KX2501A | NO SYNC, REMOVE COPPER INSERT FROM U1001 | There have been several units brought into the FSC for repairwith the symptom of no sync. The problem has been traced to theprotective insert installed on the U1001 input terminal. This plug shortstogether pins 1 and 18. This turns on Q1329/sync switc | ||
| 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 |