Dicas Reparação
Modelo - Chassis KV1515
Pesquisa: KV1515 Enviar Dica Resolvida
Resultados 14
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV1515 | TUNER FAILURE FROM STATIC | Two units with complaint of tuner failure with static dis-charge to front controls. -HQ COMMENTS: Please try the solution outlined in S/B 200R especiallyaffixing copper tape to the control panel assembly. This grounded tapewill act as a collector of st | ||
| Sony | KV1515 | BLACK ICICLES/WRONG PART | Looks like black icicles at top of screen, projecting downabout 1/2 to 1 1/2, and diminishing toward the right side. | ||
| Sony | KV1515 | NO HIGH VOLTAGE | No high voltage, +115V up to +142V. Half of the dialindicators light at the same time. Sometimes the TV would work normal. | ||
| Sony | KV1515 | BUZZ IN SOUND | Buzz in sound on SHOWTIME scrambled cable channel only. Allother channels OK. Verified problem, noted that several older Sonychassis in same house worked OK (including KV-1710/1941R/8000). | ||
| Sony | KV1515 | STATIC RELATED DAMAGE | This unit has now been repaired 3 times with static relateddamage to the tuner as the problem. A visit to the customer's homerevealed nothing out of the ordinary. We then carefully gift wrappedthe tuner cluster with 3M electric tape #1245 and grounded | ||
| Sony | KV1515 | DEFECTIVE VC DRIVE | We have found many units with defective VC drive transistors.The transistor generally fails within the first 30 days of operation.This is not a 2SC9450R 2SC1364 transistor. In fact I have not seen thisvariety in a Sony product. | ||
| Sony | KV1515 | NO CHANNEL TUNING | Unable to tune channels 2 and 4, found VC drive transistorQ101 leaky, unable to bring voltage lower than 9VDC. | ||
| Sony | KV1515 | NO VHF CHANNEL | Low VHF channels cannot be received. Found D501, D502shorted. | ||
| Sony | KV1515 | NO SOUND | Failure of sound section of IC201 due to static discharge inlow humidity environments. Have scrapped volume slider decorative buttonto remove excess silver plating. No help. -HQ COMMENTS: We are sending you a countermeasure proposal involvingapplicati | ||
| Sony | KV1515 | INCORRECT TUNING OPERATION | Could tune channels 2 to 9 only. VC on this unit cannot gobeyond 15V and band selector switch have no effect, station is tunedregardless of switch position. This problem was caused by a leakyS075 causing a high (3.2V) on Q104. | ||
| Sony | KV1515 | PICTURE DISTORTION | Intermittent vertical collapse, found C508 leaky. | ||
| Sony | KV1515 | NO LOW VHF | This unit could tune only H. VHF and UHF band. Found Q103collector to emitter leaky. | ||
| Sony | KV1515 | INCORRECT TUNING OPERATION | Unable to tune position #1 to the correct channel on any ofthe 3 band selections. All other positions function normally. Foundthat moving band switch at position 13 while in position 1 viewing modewould cause deteriorating effect on position 1 tuning, | ||
| Sony | KV1515 | NO LOW VHF | Set would not tune above channel 2, traced to leaky VC drivertransistor. |