| Make | Model | Problem | Solution | Date |
| | | |
| Found: 626
|
| Bush | 2872NTX 11AK19 | Tuning varies | R505 tracking to pcb | 14-09-04 |
| Bush | 2872NTX 11AK19-E3 | Dead | R870n 0R22 in psu o/c due to C833 arcing against chopper Tr heatsink | 14-09-04 |
| Bush | 2872NTX 11AK19ES | Dead - LED flickers low green | No 5v supply as R867 0R33 o/c | 14-09-04 |
| Bush | 2874NTX | St/by only with 15v at coll of LOPTr | Removing EEPROM got set started & ok when refitted - R/C sensor on front panel faulty | 14-09-04 |
| Bush | 2876NTX | E-W faulty | Dry joints L652 | 14-09-04 |
| Bush | 2876NTX 11AK12-9 | No sound | Dry joints P1303 | 14-09-04 |
| Bush | 2876NTX 11AK19E3 | Blank raster with 2 blue, 2 green, then 2 red, thin horizontal lines, approx. one third down screen | R 704, 100R o/c. Supply to pin 6 of frame I/C TDA 8351 caused by bad joint
on L602 | 14-09-04 |
| Bush | 2877NTX | Dead with chopper tr s/c | Replace chopper Q802 MTP6N60E pt no 30001386 & D824 s/c pt no 30001319 | 14-09-04 |
| Bush | 2877NTX | Remote cont int or not working | Dry joints PL502 ribbon cable on main pcb from front control pcb | 14-09-04 |
| Bush | 2879NTX | No sound or picture , eht , heaters , anode , volts ok sound output working. | R406 was reading 26M because ZD422 12volt zener diode was shorted. | 14-09-04 |
|
|
| Bush | 2890D | Field collapse | R704 100R, C702 100µ 63v & IC701 TDA8351 | 14-09-04 |
| Bush | 2890D | Int width & E/W | Dry joint T602 next to LOPTx | 14-09-04 |
| Bush | 2890D | St/by LED flashes green | R879 4k7 hi res | 14-09-04 |
| Bush | 2897 | No tuning above Chan 30 | replace cap across 33v zener - goes leaky | 14-09-04 |
| Bush | 28ZFK WST66 | Dead set. TP2 (FET) Blown and also diode in bridge rectifier cct. | Fit new FET(I fitted a BUZ91 type instead of a P4NA80FI) and IN4007 diode in bridge cct | 14-09-04 |
| Bush | 28ZKF Orion 4400 | Dead with faulty on/off sw | Dry joints also LOPTr S2000AF s/c & LOPTx from SEME LOPTX1277 at ?18.95 Part S065621409 | 14-09-04 |
| Bush | 28ZKFWST66 | Blank raster | Check TP6 BD441 5v reg, dry joints chopper trfmr | 14-09-04 |
| Bush | 2914 | No chan store | No 33v to memory chip IV02 - D405 s/c & 47R feed res o/c | 14-09-04 |
| Bush | 2914 | Red excess | R919 680k in RGB o/p o/c | 14-09-04 |
| Bush | 2914 | Squealing from chopper tfmr - sound/pic ok | Check sync winding on lopt for wrongly fitted after loptx change | 14-09-04 |
| Bush | 2920T | no pic sound ok - blank raster | no line drive - secondary of line drive tfmr o/c (dirty pins) | 14-09-04 |
| Bush | 3114 | Dead HT pulses on & off when mains sw held in | IC401 TA8808N 64pin chip was faulty | 14-09-04 |
| Bush | 3114A | St/by only | R502 330k o/c | 14-09-04 |
| Bush | 3463NTX 4400 | No sound/pic - no 5v | TP6 BD441 | 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 |
| Bush | 6690 Vestec | No vol/chan change or menu functions in analogue functions. Digi tuner works OK | Reset remote handset by pressing Left/Right/ Down cursor keys & No 1 button together and holding for 5 secs. Note if fault does not clear suspect micro IC. | 14-09-04 |
| Bush | 6690D (IDTV) | No vol/menu/chan change in normal mode | reset remote unit by pressing left , right, down[cursor keys]and the number one key at the same time for 5 seconds then release.[should this fail to resolve problems similar to above then micro suspect] | 14-09-04 |
| Bush | 6690D 11AK19 | No pic except for line across top of pic - sound ok | rest of screen blank unless A1 advanced - RGB O/P IC | 14-09-04 |