Make | Model | Problem | Solution | Date |
| | | |
Found: 10
|
Sharp | DV5103H | Blank raster & no OSD after LOPTx replacement | C612 in beam lim had burnt out | 14-09-04 |
Sharp | DV5103H | Dead - 2A fuse & 8R2 7w surge lim res o/c | S/C pri chopper trfmr to earth | 14-09-04 |
Sharp | DV5103H | Dead - Ht low at 45v instead of 113v | D754 6v2 zener in psu feedback loop leaky - also replace CNX82A opto coupler | 14-09-04 |
Sharp | DV5103H | Dead with blackened mians fuse | R700 surge lim res 8R2 o/c - caused by s/c chopper trfmr pri | 14-09-04 |
Sharp | DV5103H | Dead with HT present | Q509 BC635 & Q510 BC338 in field tb leaky - also check C236/C502 | 14-09-04 |
Sharp | DV5103H | Dead with the 2A fuse and 8R2 , 7W surge limiter | The cause can be a short circuit in the chopper transformer , between the primary winding and earth. | 14-09-04 |
Sharp | DV5103H | Reverts to st/by at sw on | 113v HT high at 170v as CNX82A opto coupler faulty - also check R754 150k | 14-09-04 |
Sharp | DV5103H | St/by only - LED remains red | 113v HT = 185v; R753 & R781 39k o/c | 14-09-04 |
Sharp | DV5103H Euro DS1 | Slow start up with Q700 BF487 in start up cct overheating | C707 22µ 50v & C713 1µ 50v | 14-09-04 |
Sharp | DV5103H/DV5903 D3000 | Chrom info out of register with lum | Small plug in non volatile memory chip IC1411 on digital PCB | 14-09-04 |