| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27XBR50 | HOR. RGB LINES IN TOP PORTION OF PICTURE, REPLACED R-517 | Unit looks normal but, displays red, green and blue horizontallines on the top portion of the picture. Normally, adjusting the REFfunction in the service mode will shift the lines out of the picture area.However, in this case the shift was not enough. | ||
| Sony | KV27XBR15 | HOR. RGB LINES IN TOP PORTION OF PICTURE, REPLACED R-517 | Unit looks normal but, displays red, green and blue horizontallines on the top portion of the picture. Normally, adjusting the REFfunction in the service mode will shift the lines out of the picture area.However, in this case the shift was not enough. | ||
| Sony | CCDF45 | NO VIDEO | IC-202 had input but no output. Pin 14 0v, pin 12-15-18, 4.5vwhich is high. | ||
| Sony | TAAX401 | INTERMITTENT LOSS OF AUDIO/UNIT APPEARS DEAD | Customer complaint of No Power. On bench unit workednormally until main PCB was flexed slightly. When flexed, audio on bothchannels would go out and the front panel appeared as if unit was off. | ||
| Sony | CCDTR5 | NO Y OUT OF CAMERA (ONLY COLOR) | Customer complains picture is a negative in viewfinder.Found it has no Y. | ||
| Sony | CCDTR5 | NO COLOR RECORDING | Camera REC in black and white. Plays pre-recorded tape ok. | ||
| Sony | SL2500 | NO AUDIO ERASE | While recording, no audio is erased and video may also have arainbow effect. TP-502 measured 45 to 60 vp-p and Q-544 had 5vdc oncollector. Q-542 base 1.7vdc emitter 12vdc collector approximately 5vdc. | ||
| Sony | KPR53EX20 | HIGH-VOLTAGE PROTECTION ACTIVATED, REPLACED IC-804 | High voltage protection activated on P board. Q-804 on,and Q-805 off. IC-804/1 at 12vdc even though pin 3 (non-inverting input)was lower than pin 2 (inverting input). | ||
| Sony | KV27HSR10 | HORIZONTAL RGB LINES IN TOP PORTION OF PIX., REPLACED R-517 | Unit looks normal but, displays red, green and blue horizontallines on the top portion of the picture. Normally, adjusting the REFfunction in the service mode will shift the lines out of the picture area.However, in this case the shift was not enough. | ||
| Sony | KV32XBR65 | VIDEO BLANKING, REPLACED CRT (WEAK RED) | Blanking activation was caused by a defective CRT. Thisproblem is difficult to troubleshoot because you can't visually diagnosethe condition of the picture tube during blanking. Remove Q-711 andconnect a jumper across C-720. This will restore raster a | ||
| Sony | KV32XBR70 | NO PICTURE SLEEP LIGHT ON, SHORTED 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 | KV32XBR65 | 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 | KV32XBR50 | NO PICTURE SLEEP LIGHT ON, SHORTED C500 | 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 | KV32XBR15 | 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). Foundshorted C-500. -HQ COMMENTS: When C-500 (on pin 1 of IC-500) shorts, vertical drivesignal will be lost. With the loss of output s | ||
| Sony | KV32XBR10 | 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). Foundshorted C-500. -HQ COMMENTS: When C-500 (on pin 1 of IC-500) shorts, Vertical Drivesignal will be lost. This will cause loss of |