| Make | Model | Problem | Solution | Date |
| | | |
| Found: 140
|
| 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 |
| Alba | CTV55 | bright pic | black bars present when A1 reduced - HT res cap C437 22µ 250v | 14-09-04 |
| Alba | CTV55 | Dead | s/c reading in lop due to D404 FR155 eff diode (pin 11 to chassis) | 14-09-04 |
| Alba | CTV55 | DEAD LINE OP TRANSISTOR READS SC | D404 SC | 14-09-04 |
| Alba | CTV55 | NO LUMINANCE | CHECK R423 100k R429 180k Q303 IF REMOVING D309 CURES TRY Q304 R366 22k | 14-09-04 |
| Alba | CTV55 | No luminance | Check R429 180k & R423 100k in beam lin cct. R366 22k | 14-09-04 |
| Alba | CTV55 | No pic OSD OK | R366 ( 22K ) | 14-09-04 |
| Alba | CTV55 | Smeary pic | RGB colls only 100v, L501 330µH o/c | 14-09-04 |
| Alba | CTV57 | Dead - st/by only | No HT - R221 270k o/c & check R228 270k & Q116 s/c b-c used BC547 in lieu | 14-09-04 |
| Alba | CTV5984 | Bright green raster with fb lines | IC901 TDA6108JF RGB o/p chip | 14-09-04 |
| Alba | CTV600 | Int shut down | crack in print near chassis fixing screw (emitter chopper tr to R914 near Q904 heatsink) | 14-09-04 |
| Alba | CTV600 | SHUTS DOWN INT | CRACK IN PCB BY MOUNTING SCREW NEAR Q904 HEATSINK | 14-09-04 |
| Alba | CTV6682 | Blank raster | TDA8362A in prot mode - C707 in field fback volts supply | 14-09-04 |
| Alba | CTV6682 | Field coll & no sound | No volts at ramp gen pin 43 TDA8362A; R818 22k o/c | 14-09-04 |
| Alba | CTV6682 | Field collapse | R181 22k in 33v supply gone hi | 14-09-04 |
| Alba | CTV6682 | Int then dead | chopper tfmr dry joints | 14-09-04 |