Make | Model | Problem | Solution | Date |
| | | |
Found: 6
|
Grundig | CUC3850 | Dead - HT present , no line & display corrupt | IC656 LM317 12v reg not turned on because IC850 micro SDA2080-A003 faulty. When replaced, tripler arcing - proved to be the cause | 14-09-04 |
Grundig | CUC3850 | Dead - no line drive - 150v HT ok | No 12v at TDA8140 drive chip. R661 0R2 burnt out caused by D661 BYW72 leaky | 14-09-04 |
Grundig | CUC3850 | Pic pulses at random | Poor contact plug to Aquadag on crt | 14-09-04 |
Grundig | CUC3850 | St/by only | 2SD1432 LOPTr T572 s/c due to s/c in TDA8140 line dr chip (Don't use BU508A instead of 2SD1432) | 14-09-04 |
Grundig | CUC3850 | St/by only | Check setting of pre-set (standing bias for opto coupler) on vertical st/by panel | 14-09-04 |
Orion | 3850 | Dead - psu blown up | psu chopper drive IC TEA 2262, mosfet STP480T, optocoupler TCDT1102G | 14-09-04 |