| Make | Model | Problem | Solution | Date |
| | | |
| Found: 15
|
| Alba | 4859 | Dead | Q801 2SK2750 s/c, R809 0R47 safety res o/c, check R802 100k, R805 330k, R826 100k | 14-09-04 |
| Alba | 4859 11AK19 | No line drive at sw on (150v HT to LOPTr) | Dis'd D814/815 (+14 & -14v audio o/p ic supply diodes). Replacing TDA2615 aud o/p chip resulted in bright white raster & flickering LED; R914 47R 200v feed to IC901 TDA6107Q on crt base o/c & IC s/c | 14-09-04 |
|
|
| Alba | CTV4850 | Field collapse - no sound | ZD402 12v 1.3w, R422 6R2 2w & C909 47µ C910 10µ | 14-09-04 |
| Alba | CTV4851 11AK19 | Dead - no LED display | R806 22k o/c | 14-09-04 |
| Alba | CTV4851 11AK19B-1 | Dead with 0nly 300v pri HT | Opto coupler faulty - though more faults may be present (esp if it went off in a thunderstorm) | 14-09-04 |
| Alba | CTV4855 | Sound o/p low tho' OSD shows ok | C202 220µ 16v sound coupling cap | 14-09-04 |
| Alba | CTV4855 (Onwa) | Low sound | C202 220µ decoupling cap AND R421 0R68 in line stage hi res (1R5) | 14-09-04 |
| Alba | CTV4855 Onwa | No sound/pic - blank raster | 5v line low at 3.6v - Q619 o/c | 14-09-04 |
| Alba | CTV4856 | Height varies & tuning comes up in wrong posn | 33v supply low at 18v - C504 0µ1 near front pcb | 14-09-04 |
| Alba | CTV4859 | Dead - no line drive - HT ok | IC401 (TDA8840) had an internal short in it dragging down the 8
volt line | 14-09-04 |
| Alba | CTV4859 | Low brightness & poor focus | Premature CRT aging | 14-09-04 |
| Alba | CTV4859 11AK10-17 | Dead | Q801 (BUZ77B), R809 (0.47R), IC801 (TDA4605-3), C817 (1µF 63v), R805 (330k 0.5w), D808 (BA159). | 14-09-04 |
| Bush | 1485N AK19 | Int off aft 5 - 10 mins | Check for dry joints on regs - on big heatsink | 14-09-04 |
| Proline | 1485R Daewoo Formenti | No line drive | I501 micro u/s Part no 1DW3813DE1 | 14-09-04 |
| Proline | 1485R Daewoo Formenti | Reverts to st/by aft 65 secs | I501 micro u/s Part no 1DW3813DE1 | 14-09-04 |