| Make | Model | Problem | Solution | Date |
| | | |
| Found: 23
|
| Alba | CTV4800 | No sound | Q201 2SC2703 faulty, TDA1904 audio chip faulty | 14-09-04 |
| Alba | CTV4805 | St/by only | D905 (BA157) s/c, R917 (0.65R, Fusible) o/c. | 14-09-04 |
|
|
| Alba | CTV4808 11AK19 | Comes on in st/by then if button pressed blinks pale green | Check R914 47R safety res & TDA6108JK | 14-09-04 |
| Alba | CTV4808 11AK19E3 | No tuning but tuning bar moves | Q501 BF240 - BC548C works in this position | 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 |
| Alba | CTV4881NTX | Blank raster & no sound | 12v supply to tuner missing - R422 10R o/c; ZD402 12v zener s/c | 14-09-04 |
| Alba | CTV4881NTX | Pic size & HT varies with brill | C909 47µ, C910 10µ, Q902 2SB774 leaky (BC212 does) | 14-09-04 |
| Bush | 2850NTX Schneider TV4 | Bent verticals and pulsating width (Scene Dependent) | Replace CC808 4N7 SMD primary side of PSU you will probably find that
the pcb in this area has taken some heat. | 14-09-04 |
| Bush | 2850NTX TV4 | Line collapse | Can be dry joints scan coil plug but C419 330nF 400v scan coupling cap burnt & o/c in this case | 14-09-04 |
| Harwood | HTV4914 | Int snowy pic | Crack in print in tuner just after IF pin | 14-09-04 |
| Orion | TV400 | No sound/pic | IC7016 8v reg | 14-09-04 |
| Orion | TV400TX | Dead | R3519 150k and R3525 390K both high res | 14-09-04 |
| Orion | TV400TX | Dead - 2A fuse o/c | C2524 1000pf 1kv disc ceramic cap breaking down | 14-09-04 |
|
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| Orion | TV450R | LED pulses continuously - HT low & pulsing | OK on dummy load - LOPTx was faulty although it tested ok(breaking down under load) - HR8026 ?16.95 CHS | 14-09-04 |