| Make | Model | Problem | Solution | Date |
| | | |
| Found: 58
|
| Bush | 1473T | Dead - off with flash | BUZ77B chopper s/c; R805 330k hi res at 570k; R889 0R47 o/c & replaced TDA4605-2 & C831 1µ 50v as a precaution | 14-09-04 |
| Bush | 1473T | To enter serv mode on "11AK08" version (printed on front edge of chassis) | 1 Press vol- on the keypad
2 Press 'prog' on the handset
3 Press '--' on the handset 4 Press TV on the handset (That's the one with the blank screen on it) Use prog + & - to select parameters and vol + & - to alter values. The red button stores and the exit with 'TV' | 14-09-04 |
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| Bush | 1473T 11AK08 | Line tearing | C818 (47MFD 160VW), +B line smoothing capacitor (high ESR). | 14-09-04 |
| Bush | 1473T 11AK08 | Pic int smeary or dissappears | Dry joint PL901 earth wire on crt base panel | 14-09-04 |
| Bush | 1473T 11AK20 | Field collapse | R709 sm 10k adjacent to FOP chip not properly soldered in | 14-09-04 |
| Bush | 1474T | Dead | Replace D811 in the secondary of the PSU. I used a BYV28/150 as a replacement | 14-09-04 |
| Bush | 1474T (AK20) | Dead | D811 in sec of psu - used BYV28/150 | 14-09-04 |
| Bush | 3472NTX | St/by light blinks only | LOPTr S2000A s/c & LOPTx insulation breakdown - CHS order code FBT40564 | 14-09-04 |
| Bush | 3472NTX 4400 | No pic - blank raster | TP6 BD441 in +5v supply | 14-09-04 |
| Bush | 3472NTX Pro 4400 | No pic or OSD - only blank raster | Check TP6 BD441 in 5v supply & DC4 1N4148 in BCL cct leaky between LOPTx & Scart. Check volts pin 22 TDA8843, (no higher than +3V) - > +3.6V then IC would disable RGB o/p to prevent crt burn. | 14-09-04 |
| Crown | CRV47 | Dead | R809 0R47 o/c, Chopper tfmr s/c under load tho' measured ok | 14-09-04 |
| Dansai | CTV1477 | Dead - faint whistling from PSU. | C617 small blue disc type. | 14-09-04 |
| Dansai | CTV1477 | Dead apart from whistling from psu | C617 blue disc cap pinhole in it | 14-09-04 |
| Dansai | CTV1477 | No Sound. | Speaker O/C. | 14-09-04 |
| Decca | 9478 | POOR LOW CONTRAST PICTURE | R427 - 120k ( BEAM LIMIT SUPPLY FROM 121v ) | 14-09-04 |
| Dynatron | 267475SK K40 | Takes long time to come on (20 - 30 secs) & no chan nos | Replaced T7123 BC368, T7122 BC369, T7182, T7150, T7162 all BC547, & Chopper tr BU508V & check C2128 100µ & elects in psu pri | 14-09-04 |
| Goldstar | CIT4785 | Dark pic with field non lin | C820 HT cap 10µ 160v | 14-09-04 |
| Goldstar | CIT4785 | Field collapse | 40v wform at pin 2 of LA7830 chip - check C305 100µ 16v | 14-09-04 |
| GOLDSTAR | CIT4785 | Int dead | dry joints chopper chip (looked ok) & check other dries in psu | 14-09-04 |
| Goldstar | CIT4785 | Int no sound/pic/field collapse - display stuck on "0"; no r/c or front controls | int s/c on 12v line - P101 pin 11 s/c to adj pin | 14-09-04 |
| Goodmans | 147 | Dead ZD402 s/c R425 o/c | Check C911 & C909 Beware orientation of C909 should be "-" plate to Q904 | 14-09-04 |
| Goodmans | 147/149 | Dead | SEE Bush 1400 | 14-09-04 |
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| Goodmans | 1475TS | Int blank raster - ok on scart | Vid proc I501 TDA8374A | 14-09-04 |
| Goodmans | 147TT | Dead | ZD402 12v, R425 5R6 3w caused by C911 47µ 50v (may be inserted wrong polarity - marking on some boards is wrong) | 14-09-04 |
| Goodmans | 147TT | DIST FIELD | R413 6k8 HIGH | 14-09-04 |
| Goodmans | 147TT | NO VIS , BLANK RASTER ( MAY RE-APPEAR WHEN A1 ADJ. | R430 180k | 14-09-04 |
| Grundig | Super color 8472/8672/8272/8872/9272 | R621(6,2ohms) smokes immediately after switch-on. | Replace thyristor Ty503 type17127 | 14-09-04 |
| Grundig | Super color 8472/8672/8272/8872/9272 | R621(6,2ohms) smokes immediately after switch-on. | Replace thyristor Ty503 type17127 | 14-09-04 |
| Grundig | Super color 8472/8672/8272/8872/9272 | Won't search. | Pin 5 of syntheseizer module, should have 3,5 volts. If not, change R4111 (1,8 volts). | 14-09-04 |
| Hitachi | C1474R | Dead | ZD910 S.C. BZX79C2V7 | 14-09-04 |