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Modelo - Chassis KV27XBR10
Pesquisa: KV27XBR10 Enviar Dica Resolvida
Resultados 69
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27XBR10 FN | tuning | Unit has AFT drifting as soon as the channel is addressed. It never stops the AFT search. | Unit needs to have the IF/Demodulator module removed from it's shielded compartment and resolder all the adjustable tuning transformers. The AFC coil/transformer has ring fractures around the pins that protrude through the | Muller |
| Sony | KV27XBR10 FN | AFT | KV27XBR10. Serial 7009564. Unit has AFT drifting as soon as the channel is addressed. It never stops the AFT search | Unit needs to have the IF/Demodulator module removed from it's shielded compartment and resolder all the adjustable tuning transformers. The AFC coil/transformer has ring fractures around the pins that protrude through the | Muller |
| Sony | KV27XBR10 | NO HORIZONTAL OSCILLATOR PULSE, D302 | No horizontal oscillator pulse was generated from IC301. Ifpin 39 was grounded, the oscillation would appear, after extensivetroubleshooting, found zener D302 breaking under load, static check withmeter indicated good. | ||
| Sony | KV27XBR10 | NO RASTER OR AUDIO, REPLACED D251 ON THE X1 BOARD | Blank screen accompanied by loss of audio measuremtnd dctaken with unit not functioning.IC301, P27 =.5V, P47=9V, P48=1.1V, P21=3.9V, P20=.2V, P24=2V P23=3.8VIC500 P1=2V,P2=12.9V,P3=17V, P5= 1.5V, P6=12V, P4=17VQ50V 3 =-17.7V, C=24.5V, B =17.3VD507 Catho | ||
| Sony | KV27XBR10 | X1 BOARD NOT SHOWN IN SCHEMATIC, SEE SUPPLEMENT-3 | While the schematic calls for an X board, the actual unit Ihave has an X1 board instead. I was unable to find any supplements forthis model, but the 2nd Supplement for KV32HSR10 shows the X1 boardschematic. -HQ COMMENTS: This X1 board is covered in Sup | ||
| Sony | KV27XBR10 | NO PIX, HAS HV & SOUND, REPLACED DIODE D514 | No pix - had sound & HV, IC031 was blanking due to D514shorting pulling base of Q506 low, pulling its emitter low, pulling pin27 of IC301 low, thus blanking the picture. | ||
| Sony | KV27XBR10 | DEAD, HIGH PITCH SOUND HEARD, Q503 SHORTED | POWER SUPPLY OSCILLATOR AT HI FREQ. NOTHING ELSE WORKS. | ||
| Sony | KV27XBR10 | NO PICTURE HAS HV, REPLACED D505 AND R519 | NO VIDEO HV PRESENT. | ||
| Sony | KV27XBR10 | SQUEAL FROM YOKE, REPLACE YOKE 1-451-275-41 | YOKE SINGS CAUSING HIGH FREQUENCY WHINE WHEN FIRST TURNED ON. | ||
| Sony | KV27XBR10 | NO PIN CUSHION ADJUSTMENT, REPLACED Q505 | Can't adjust pin cushion with remote (service mode). | ||
| Sony | KV27XBR10 | HOR. OUTPUT FAILURE, SEE SB 161R1 | Dead Hor. Output Q-503 failed. | ||
| Sony | KV27XBR10 | NO OPERATION / REPLACE IC-101 (MICRO) | |||
| Sony | KV27XBR10 | NO PICTURE DURING PLAYBACK, REPLACED Q713 | Picture would flicker. Problem started at the output of theY/C jungle pins 20, 22, and 24. IK line also pulsed as the pictureflickered. The base of Q713 on the C-board remained at .3 volts but theemitter was constantly changing from 1 to 2 volts. | ||
| Sony | KV27XBR10 | ERRATIC OPERATION ON PIC, BRT, HUE, ETC. , STATIC DISCHARGE | Terry Williams worked with a tech on the phone concerning asystem control problem. The sympton was when the set is turned on all thepicture controls are at max. (Pic, Brightness, Hue, Color, etc). Thetech had replaced the memory and microprocessor. Th | ||
| Sony | KV27XBR10 | LOSES VERTICAL SWEEP INTERMITTENTLY, COLD SOLDER L513 | No vertical sweep intermittently. |