Dicas Reparação
Modelo - Chassis KV20EXR10
Pesquisa: KV20EXR10 Enviar Dica Resolvida
Resultados 19
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV20EXR10 | INTERMITTENT LOSS OF LUMINANCE , REPLACED C305 | Loss of luminance but chroma remains intact. Intermittentproblem can be simulated by tapping almost anywhere on chassis. | ||
| Sony | KV20EXR10 | NO POWER, REPLACED IC-651 | No power. | ||
| Sony | KV20EXR10 | UNIT LOCKED IN THE SERVICE MODE, SUBSTANCE FOUND IN SET | Upon power on unit comes on to the service mode and will notcome out of it. Unpluging does not help. | ||
| Sony | KV20EXR10 | NO RASTR - NO SOUND, REPLACED R-567 | No raster and no sound. Faint line horizontally rolling fromtop to bottom of screen. | ||
| Sony | KV20EXR10 | INSTANT SHUT DOWN, REPLACED Q-608 | Instant shut down. When the unit shuts down, 0.4 volts can bemeasured on Q-608 base. As a result, the transistor is turned on. | ||
| Sony | KV20EXR10 | LOW BRIGHTNESS, RESOLDERED R-741 ("C" BOARD) | Very low brightness. Looks like color only. RGB pulses arevery low. R-741 leads were not penetrating completely through the boardcausing misoperation of Q-711 thus sending a wrong IK pulse to pin 25 ofIC-301. | ||
| Sony | KV20EXR10 | BUZZING NOISE, REPLACED T-602 | Customer was complaining about intermittent buzzing. Unableto hear in the shop. | ||
| Sony | KV20EXR10 | INTERMITTENT PICTURE, REPLACED TUNER | After warm-up, flashing noise would appear in picture. Ser-vicer was unable to locate bad solder connection in tuner. | ||
| Sony | KV20EXR10 | NO PICTURE - NO DISPLAY, REPAIRED CRACK ON "C" BOARD | No picture and no display. Y/C inputs to IC-301/pins 3 and 5ok, but no RGB outputs. IC-301/pin 7 at 0.2vdc confirming IC-301 has pic-ture muted. IC-301/pin 25 IK pulse shows no red sample. RGB referencepulses present at inputs to C board, but red pul | ||
| Sony | KV20EXR10 | INTERMITTENT POWER ONLY, RESOLDER HDT | Resolder cold solder connection on T-501 HDT. Also foundIC-301 defective. The CRT was also shorted. | ||
| Sony | KV20EXR10 | NO POWER, REPLACED C-112 | No power. Pins 29, 1, 38, 27 all checked out ok. However,there was no 5V on pin 25 (power) on IC-101 and as a result no drive forthe relay from pin 7 of IC-101. | ||
| Sony | KV20EXR10 | NO PICTURE SLEEP LIGHT ON, REPLACED C-500 | Set has high voltage. Sleep light is on, but set has nopicture. Found .7Vpp on pin 31 of IC-301 (should be 2 volts). ReplacedIC-500 and IC-301 still not working properly. Found shorted C-500. -HQ COMMENTS: When C-500 (on pin 1 of IC-500) shorts, ver | ||
| Sony | KV20EXR10 | NO STEREO, ADJUSTED STEV | Unit has no stereo stereo LED would not illuminate. Otherfunctions normal. Data & CLK lines OK, MPX input present. | ||
| Sony | KV20EXR10 | HORIZONTAL LINE ONLY; SOUND OK, L-514 COLD SOLDERED ("A") | Horizontal line only sound is ok. Voltage missing atIC-500/2. Found one end of L-514 not inserted into PCB. | ||
| Sony | KV20EXR10 | AT TURN-ON PICTURE FLASHES SEVERAL TIMES, ADJUST G2 | At turn-on after about 10 seconds the picture flashes ON/OFFseveral times, then stabilizes. |