Grundig CUC3850 Repair Tips
Search: CUC3850 Grundig
Results 5
Results 5
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Grundig | CUC3850 | St/by only | Check setting of pre-set (standing bias for opto coupler) on vertical st/by panel | ||
| 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) | ||
| Grundig | CUC3850 | Pic pulses at random | Poor contact plug to Aquadag on crt | ||
| Grundig | CUC3850 | Dead - no line drive - 150v HT ok | No 12v at TDA8140 drive chip. R661 0R2 burnt out caused by D661 BYW72 leaky | ||
| 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 |