| Make | Model | Problem | Solution | Date |
| | | |
| Found: 131
|
| Alba | CT840 | Dead | R302 6k8 high res | 14-09-04 |
| Alba | CT840 | Dead | R302 6k8 in psu o/c | 14-09-04 |
| Alba | CTV5984 | Bright green raster with fb lines | IC901 TDA6108JF RGB o/p chip | 14-09-04 |
| Alba | CTV840 | dead | chopper tr BU508AT s/c, R902 2R2 safety res o/c, C909, 910 47µ 50v HT now steady at 111v | 14-09-04 |
| Alba | CTV840 | Field collapse | C404 22nf int s/c req replacement of field chip LA8730 & supply diode | 14-09-04 |
| Alba | CTV840 | No tuning | R125 47R o/c, C127 470µ 16v s/c | 14-09-04 |
| 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 |
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| 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 |
| Beko | 2841ND - 14.1 chassis | Lines across top 3 - 4 inches of pic | R422 35v feed to IC501 fop chip never been soldered | 14-09-04 |
| Beko | 28426NDS | Problem is ticking BU508df(LOPTr) and flashover on EHTpiller from LOPTX. Can i be informed of any other associated components that would need replacing. The BU508 has destroyed twice.
| you need to replace the lopt and transistor ,then check the line drive frequency-there is a fault which increases the line frequency and there are certain mods which may need to be carried out.
you should have a working set one the lopt and line transistor has been replaced.Try the wimtv site for mor info if you have more problems | 12-12-05 |
| Beko | NR28411ND | Dead | Check the following-IC 601 44608P40-CKU8 chopper control chip., T601 K2545 FET device., R611 1K, R639 15R, R606 & R607 0.47R, R609 68K, D601 IN4004, Posistor | 14-09-04 |
| Beko | NR28411ND | Dead with 2.5A fuse o/c | R639 15R 1/2w, R606/7 0R47 1/2w, IC601 MC44608P40 & Chopper Tr T601 K2545 | 14-09-04 |
| Beko | NR28416ND | Bright white raster | No 200v to TDA6108JF vid amp - crack in print by LOPTx ( under plastic cradle) | 14-09-04 |
| Beko | NR28416NDS | Dead aft thunderstorm | IC601 (MC44608P40), T601 (2SK2545) R606/607 (0.47R, 1/2W) in psu replaced | 14-09-04 |
| Beko | NR28416NDS | Dead with LOPTx insulation breakdown | LOPTx Pt no 058834-TR2 | 14-09-04 |
| Bush | ITV8401 11AK20S | St/by only - r/c not operating tv | Initialise remote by pressing arrow L, arrow R & arrow Down as well as "1" at the same time | 14-09-04 |
| Ferguson | ICC17 M8422U | Dead with mains fuse blown | DP06 BZW04-342 across mains rect cap (not shown on all cct diags) | 14-09-04 |
| Ferguson | M8421U ICC17 | Dark bands running up screen with corrugation/pulling in the bands | Fit Line output transformer kit (35096370)
Notes: The LOPT kit consists of a new transformer (10608640) to replace the original (10516050) for this 33" medium planartube (MP), plus a 100k 0.1w surface-mounted resistor to replace RL48 (76k8). | 14-09-04 |
| GEC | NP84 Mk2 | Int no colour. | C527. | 14-09-04 |
| Grundig | CUC1842 | Focus poor | Replaced tripler & 2 x 1n5 6kv caps on dynamic focus board | 14-09-04 |
| Grundig | CUC3840 | Int dead | D661 BYW72 in 12v supply going o/c | 14-09-04 |