Dicas Reparação
Modelo - Chassis KPR46EX25
Pesquisa: KPR46EX25 Enviar Dica Resolvida
Resultados 13
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KPR46EX25 AP | NO Raster | Sony KPR46EX25 Unit has no raster. Filaments do not warm up. No pulses to the filament pulses to CRT but filaments are 200 volts above ground. | Unit had open resistor R697 a 1.2 ohm resistor for the filaments | Muller |
| Sony | KPR46EX25 | RED MISCONVERGENCE INTERMITTENT, ADDED JUMPER WIRE | Intermittent convergence of red tube, particularly at bottomof screen. Problem noticeable when D board flexed and resoldering didn'teliminate problem. | ||
| Sony | KPR46EX25 | INTERMITTENT SHUTDOWN, RE-ADJUSTED RV4501 | Shutdown would occur after a couple of hours, only when theantenna was connected. Extensive troubleshootiong and shutdownadjustments were perforemd, ABL current measured was below the 3500 uAmax. specified value. | ||
| Sony | KPR46EX25 | SCREEN FADING, REPLACED SCREEN | Screen appears cloudy on the inside all the way to theouter edges. I have replaced about 8 to 10 of these screens lately. Thisis the second screen I have replaced on this particular unit. Thefirst one I sent in to the Technical Dept. for evaluation ab | ||
| Sony | KPR46EX25 | RED LINES FLASHING IN TOP PORTION OF PICTURE, RESOLDER Q5001 | With a crosshatch on, tapping on D board heat sink wouldcause red convergence on top portion of picture to compress and jumparound. | ||
| Sony | KPR46EX25 | BURN SPOTS ON ALL CRTS, REPLACED OPEN R-519 | Servicer reported three damaged CRTs in customer set.Troubleshooting of set revealed that R-519 was open. | ||
| Sony | KPR46EX25 | REPLAY TITLE LOCKS ON, IC-1202 ALSO CHECK D-202 | Unit will display large REPLAY title in green at center ofscreen. Is activated by CH INDEX. When it happens, volume level bar andpicture level bar do not display at bottom of screen. REPLAY cannot beeliminated and set must be unplugged or microprocess | ||
| Sony | KPR46EX25 | PICTURE WAS DARK, FOUND R-1256 AND JW-82 TOUCHING ("B") | Picture was dark and you could not adjust the brightness. G-2was turned up in order to compensate for no brightness. | ||
| Sony | KPR46EX25 | VIDEO 3 HAS TV CHANNELS - NO AUDIO, U-5 CONNECTOR | This unit had TV channels coming thru on video 3 but no audio. | ||
| Sony | KPR46EX25 | INTERMITTENT SHUT DOWN, REPLACED HVR | TV goes into shutdown when cold. | ||
| Sony | KPR46EX25 | UNIT INOPERABLE, SEE FPR # M1097 | Set is new and out of box. Failed at turn on. Replace tran-sistors and they are immediately damaged. | ||
| Sony | KPR46EX25 | R-697 ON G BOARD NOT LISTED, SB 0071 | R-697 is not listed in either the schematic or in the partslist. -HQ COMMENTS: This resistor is located between pin 6 of T-605 and pin 2of T-607 on the G Board. Please refer to service bulletin No. TVP0071of Feb. 8, 1991 for more information. | ||
| Sony | KPR46EX25 | DEAD, SEE SB 95R1 | When Q-601 and/or Q-602 is replaced, the replacement numberthat is most commonly used is 8-729-926-03. Thus, a backorder for thispart is created. -HQ COMMENTS: Please note that there are 2 part numbers available asreplacement: 8-729-926-03 (2SC4581 N-T |