Dicas Reparação
Modelo - Chassis KV2645RS
Pesquisa: KV2645RS Enviar Dica Resolvida
Resultados 14
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV2645RS | INTERMITTENT FOCUS/BRIGHTNESS | After the unit was on for a while, it would intermittentlychange in brightness and de-focus. The problem was caused by intermittentarcing between pin 1/G4-Focus of the CRT and pin 12/G2-Screen. The arcingbetween these two pins was across the glass unde | ||
| Sony | KV2645RS | VERTICAL SHRINKAGE, REPLACE C518 | Set came in with vert. fold over, and vertical shrinkage.This unit had been worked on by an unauthorized person. I found ECGtransistors in the vertical output circuit. With the Sony sub. trans Q502(8-765-500-00) failed right away. Replacing it with th | ||
| Sony | KV2645RS | AUDIO POP ON CHANNEL CHANGE, ADJ T207 | Loud audio pop on channel change, power on, or power off.Changed T207 on A board, this reduced pop somewhat, but did not eliminateit. Adjusted T207 while changing channels to eliminate popping. | ||
| Sony | KV2645RS | JAIL BARS, REPLACED C539 | Jailbars faint under normal viewing conditions. Problembecomes obvious when camera fades to gray, or picture and brightnesscontrols are placed at minimum. Jailbars are then observed in graduallylightening shades of gray from left to right across the CR | ||
| Sony | KV2645RS | NO LAST CHANNEL MEMORY, REPLACED LEAKY D-26 ON MD BOARD | Last station memory is lost when the set is turned off. | ||
| Sony | KV2645RS | NOISE LINES ON THE SCREEN, REPLACED YOKE | Lines visible at left side of screen, one inch wide andvertical. All channels exhibited the lines. | ||
| Sony | KV2645RS | NO UHF, REPLACED PRESCALER BT-981 | No UHF, VHF OK. All voltages and pulses present exceptTP-59. | ||
| Sony | KV2645RS | LOW BRIGHTNESS, REPLACED R751 | Low brightness, like weak CRT. | ||
| Sony | KV2645RS | CHANNEL WOULD NOT LOCK, ADJ T205 AFT COIL | Would not lock on to cable channel #14. Cable companyrunning mid-band channels 1.2MHz to 1.9MHz below accepted centerfrequency. | ||
| Sony | KV2645RS | INCORRECT PICTURE POSITION, ADD CAP | Unable to center picture horizontal. Picture off to the leftby 1/2 inch with TAP plug into RIGHT position. Servicer changed yoke,diodes D519, D518 and resistors around center area. I changed severalcapacitors. Customer has had this problem from the f | ||
| Sony | KV2645RS | PIN CUSHION, ADD RESISTOR IN SERIES WITH R809 | Pincushion correction at top and bottom near the corners isalmost null. -HQ COMMENTS: To correct the problem place a 15 ohm 1W resistor inseries with R809 (100 ohm 1W) and readjust pin phase and pin ampcontrols. | ||
| Sony | KV2645RS | TUNING WOULD NOT LOCK, REPLACED S2262 | TV would continuously scan through all channels. Foundchannel up button closed. | ||
| Sony | KV2645RS | COLOR DISTORTION, REPLACED R751 | Bleeding color (red). Found R751/470kohm resistor changedvalue. | ||
| Sony | KV2645RS | NO OPERATION, REPLACED Q203, D202 AND R533 | No raster, no sound and channel indicator does not light up. |