Dicas Reparação
Modelo - Chassis V25
Pesquisa: V25 Enviar Dica Resolvida
Resultados 289
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | ACV25S | SPECIAL SCREWDRIVER TO OPEN | I am told by a servicer it takes a special screwdriver toopen this unit for service, what type do you call this if you call a toolcompany? -HQ COMMENTS: The Special screwdriver is called a Tamper-Resistant #10Torx Driver. Our part number is 3-985-911-0 | ||
| Sony | KV25XBR | FAILURE TO DISPLAY PICTURE, REPLACED Q-1504 | The TV had no picture and functions on the front panel wereinoperative. Vertical pulse was missing on pin #4 of IC103 on the A-board. The other problem was there was no video out of IC 301. Theoutput pins 34, 33, and 32 were all Ov. All pulses and DC | ||
| Sony | ACV25S | AVAILABILTY OF S402 | |||
| Sony | ACV25S | WILL NOT CHARGE/ S402 DEFECTIVE/ P/N 1-537-322-12 | Will not switch to charge mode. Found S-402 defective (end oftab broken). | ||
| Sony | ACV25S | SERVICEABILITY | Servicer questioned whether they should be repairing thispower supply. The computer indicates that it is repairable but a specialsecurity torque screw is used for holding the case together. The unitcannot be disassembled using conventional drivers. Pl | ||
| Sony | KV25VXR | LOCK-UP | Set would turn on but no other functions. Raster ok and soundis ok. Measured crystal at IC-103 and found amplitude at 2Vp/p, s/b5Vp/p. | ||
| Sony | KV25XBR | NO VIDEO/SWITCHING PROBLEM | There was no video displayed on the screen or present at themonitor out jack. Sound was ok and characters were present. We found theproblem to be caused by an open pull up resistor R-913 U board. Thisprovides bias for IC-805/video switching and the vi | ||
| Sony | KV25XBR | SET SHUTS DOWN - WHEN ITS ON HORIZONTAL WIDTH IS PULLED IN | Set shuts down upon turn on but if you turn it on a number oftimes, it will turn on but horizontal width is pulled in approximately 1/4to 1/2 inch on each side of the picture. | ||
| Sony | KV25XBR | FUSE BLOWS WHEN UNIT IS PLUGGED IN | Blows F-601 7A/125V. As soon as unit is plugged in, fuseblows. | ||
| Sony | KV25XBR | DEAD SET, REPLACED THP-601 | Set had open line fuse. I could find no shorts. New fuseblows instantly. | ||
| Sony | KV25DXR | NO VERTICAL DEFLECTION | No vertical deflection. Caused by Q-2030 failing to pullreset line to its normal high. Note: Schematic error page 55 (J-7).D-2056 should be connected at the junction of R-2198 and R-2199. It willnot operate as drawn. | ||
| Sony | KV25XBR | SEVERE DISTORTION - LOOKS LIKE EXTREME PINCUSHION | Severe distortion on sides and center of picture. | ||
| Sony | KV25DXR | HIGH VOLTAGE SHUTDOWN | Set would go into high voltage shutdown at turn on. Bydisabling hold-down circuit (open up R-571) I had about 11 Vdc onprotect line, 225 Vdc on 200 volt line and 39 KV high voltage. Thepicture was about 3 inches small from both sides and top to bottom. | ||
| Sony | KV25DXR | VIDEO HAS NOISE ON HIGHLIGHTS | Unit displayed noise on high frequency portions of video.Noise was mostly red in color. Video input to this IC looked clean -RGB outputs displayed noise in waveform. | ||
| Sony | KV25XBR | SCHEMATIC ERROR REGARDING V-PULSE | From connector A-2 pin 3 on the V-pulse does not correctlyfind its way to IC-103/pin 4. After being inverted at Q-127, its showngoing to IC-103 pin 15, FM trap pin 4 is shown tied to power switch line. -HQ COMMENTS: Thank you very much for your report. |