Make | Model | Problem | Solution | Date |
| | | |
Found: 140
|
Alba | CTV840 | No tuning/store or analogue adjust apart from Vol | -30v supply low pin 9 IC601 - C919 330µ 50v esr >100, also check ZD601 30v zener | 14-09-04 |
Alba | CTV840 Onwa | Black vert bars with background pic | C420 22µ 160v o/c | 14-09-04 |
Alba | CTV840 Onwa | No tuning although the set displayed tuning drive | R125 ( 47R ) was opencircuit because C127 ( 470uF 16V ) was short circuit .These components form a filter in the 9.25V supply | 14-09-04 |
Alba | CTV841 | dead | chopper tr BU508AT s/c, R902 2R2 safety res o/c, C909, 911 47µ 50v HT now steady at 111v | 14-09-04 |
Alba | CTV841 | Dead with 4R7 surge limiter o/c | Check 4 x 4n7 ceramic caps in mains bridge rect for s/c | 14-09-04 |
Alba | CTV841 | Only tunes over lower bands | R646 10k 2w o/c (in front of loptx) | 14-09-04 |
Alba | CTV841 Onwa | St/by only - relay chatters when sw held in | D401 | 14-09-04 |
Alba | CTV841 Onwa | No pic - appears bright when A1 advanced | R430 180k in beam lim o/c | 14-09-04 |
Alba | CTV842 | Dead - no line drive | Line dr tfmr o/c due to glue attack - managed to repair | 14-09-04 |
Alba | CTV842 | No colour | Cap 0µ47 connected to pin 12 of TA7698AP decoder/tb chip | 14-09-04 |
|
Alba | CTV842 | No tuning | R108 10k o/c | 14-09-04 |
Alba | Onwa CTV701 | No sound/pic just pattern on screen | Video reaching Txt pcb but not leaving it. 5v supply missing - check HT smoothing cap 100µ 160v | 14-09-04 |
Alba | PTV10 | Dead. | Mains transformer primary o/c. only use correct bri e. | 14-09-04 |
Alba | PTV9 | NO TV TUNING RADIO OK | R128 OC 6k8 | 14-09-04 |
Alba | Ssangyong ETC. C | DEAD ZD401 12v ZENER SC R414 12R 2W OC LOP TR SC | CHECK HT SHOULD BE 114v CHECK ALL POWER SUPPLY CAPACITORS , ZENERS AND SOLDERING | 14-09-04 |
Alba | T14 | Dead - mains fuse o/c | Q1 FET P5NA80F1 s/c due to R294 270k o/c (RS stock FET order code 313-2857)) | 14-09-04 |
Alba | VTV10 | Dead | C480 10µ near line dr tr | 14-09-04 |
Alba | VTV10 | No vision , JUST BLUE SCREEN | R7024 1r VCR P.SUPPLY. NO HT TO TV IF AMP TRANS. | 14-09-04 |
Alba | VTV19 Combi | No pic - sound ok | C480 10µ near line dr tr | 14-09-04 |
Alba/Bush | CTV100 | Uncontollable vol that wont reduce | L101 o/c | 14-09-04 |