Make | Model | Problem | Solution | Date |
| | | |
Found: 13
|
Pioneer | SV2102 | EHT NO PIC OR SOUND | U4606 ( DO NOT USE PIONEER PART No !!! ) | 14-09-04 |
Pioneer | SV2102 | No sound/vis - EHT present | IC U4606 | 14-09-04 |
Pioneer | SV2801 | No contrast - RGBs high at 165v | U4606 vid proc chip faulty - U4647 does | 14-09-04 |
Pioneer | SV2801 | Sound int | Check spkr pl/skts & AM/FM sound module earthing for dries & QS46 17.7292MHz Xtal | 14-09-04 |
Pioneer | SV2803 | BOTTOM FOLDOVER | 680mfd , 35v FIELD SCAN COUPLING CAP | 14-09-04 |
Pioneer | SV2803 | Field foldover at bottom | C2582 680µ 35v | 14-09-04 |
Sharp | SV2142ED | Hi HT at 250v (115v) | Crack in print by pins 1 & 4 of STRD5441 | 14-09-04 |
Sharp | SV2588H | Dead aft brief activity at sw on | Overiding relay gave blank raster/no sound - D712 & D713 dry joints | 14-09-04 |
Sharp | SV2589 | For PSU problems. | Resolder diodes attached to PSU heatsink. | 14-09-04 |
Sharp | SV2589 | INT RED TINT IN TOP 2/3rds OF PICTURE | C636 DRY CHECK DIODES ON HEATSINK ALSO | 14-09-04 |
|
Sharp | SV2589 | Red tint at top of pic & slight vert jitter | C636 330µ dy joints | 14-09-04 |
Sharp | SV287XH | Blank raster/no sound - OSD present (RF & Scart) | Switching [video and audio] is performed by IC401 [M51321P] a three gang three way device. pin 15 of the IC works on a tristate level. With the IC supply being 12V: 0 - 2.5V Input from BNC; 5 - 7V Input from scart ;9 - 12V Input from tuner. Diode D419 [DX00458M] which links to the wiper of the AGC preset was leaky, limiting the voltage on pin 15 to 7V and thus preventing tuner mode selection. Replace D419 with an IN4148 | 14-09-04 |
Sharp | SV287XH | St/by only at sw on with burning smell | R518 2R2 smokes due to fop chip IC501 LA7831 faulty - caused by C521 & 522 100µ 35v o/c | 14-09-04 |