| Make | Model | Problem | Solution | Date |
| | | |
| Found: 91
|
| Bush | 2866NTX SM2 | Txt missing | Short pin 20 of IC301 the micro to earth then switch on. Service menu should appear
Service- Telra V2.0; OP byte 1 OX OB; OP byte2 OX BO Init EEPROM.
Use P+/P- tp select the line to adjust and V+/V- to adjust.Bytes 1 and two must be as shown above.
To initialise the EEprom select the line and press V+/V- Correct handset reqd. | 14-09-04 |
| Bush | 2866NTX/SM2 | Blank white raster - sound ok | Jungle chip TDA8363AN3 | 14-09-04 |
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| Bush | 2866NTX/SM2 | Line tearing when heated | C597 (22nF 400V) completely open circuit. | 14-09-04 |
| Bush | 2866NTX/SM2 | To access tuning mode | press and hold [MENU] button for at least 5 sec.
Then press and hold the white button for at least 5 sec to auto tune all the channels. Then use the green button to re-arrange the stored channels. | 14-09-04 |
| Bush | 2866NTX/SM2 | Won't store or loses chan store | This was cured by replacing memory 24C08 | 14-09-04 |
| Ferguson | 14M2 | Chopper tr blown | arcing tracks between tr pins | 14-09-04 |
| Fidelity | CTM2000R | Loss of sync when heated | C100 33µ 250v HT res cap (HT still measured ok at 119v) | 14-09-04 |
| Fidelity | CTM2000T | Tripping | 10nf lop tuning cap burn up & BU508A lop tr leaky | 14-09-04 |
| Fidelity | CTV3228NF SM2 | Colour fades out | C325 0µ1 | 14-09-04 |
| Hikona | RM2002 | Crackle on sound unaffected by vol setting | check 47µ tant coupling cap under IF screening can | 14-09-04 |
| Hikona | RM2002 | No sound | IC101 TA7680 Audio o/p chip pin 1 (vol cont) should read 5.8v at min vol & 0v at max. Was not varying - Q201 faulty - BC238 does | 14-09-04 |
| Hikona | RM2002 | No sound. | Q201 ( BC238 ) but diff legout , TA7680 | 14-09-04 |
| JVC | AVA14M2 | Int cuts out | Check for cracked print around LOPTx | 14-09-04 |
| KENWOOD | KM2900M | INT THERMAL CUTOUT CUTS IN | CHECK IMPELLER IS NOT SLIPPIN ON FAN MOTOR SHAFT IF IT IS GLUE AND REFIT | 14-09-04 |
| Matsui | 25M2 (Sanyo) | No start up - LED flashing | R621 & 620 both 120k in psu pri | 14-09-04 |
| Matsui | 25M2 (Sanyo) | No start up LEDs flashing | R621 & 620 both 120k resistors in the PSU primary. | 14-09-04 |
| Mitsubishi | C25M2TX | Field collapse | AN5521 FOP chip & C454 100µ 35v hi esr | 14-09-04 |
| Mitsubishi | CM21M5BT | dead | Q901, R991, IC901, D909, C914 & Q552 replaced. A BU 508DF or BU2506DF works in place of BU2506DX Q552 | 14-09-04 |
| Mitsubishi | CT15M2TX | Int off | IC901 (STR54041) int | 14-09-04 |
| Mitsubishi | CT25M2 | Field collapse & burn up around D533 | Replace D533 BYD33G (used BYW96E in lieu) C560 2200µ 35v, C457 2200µ 35v & IC451 AN5521 - also check caps in psu - C914, C905 etc | 14-09-04 |
| Mitsubishi | CT25M2TX | EXCESSIVE WIDTH WITH BENT VERTICALS | CHECK FOR DRY JOINTS ON C558 WHICH CAUSES IC5E1 AND L555 TO FAULT | 14-09-04 |
| Mitsubishi | CT25M2TX | No E/W control with excess width | Dry joint C558 caused failure of IC5E1 TEA2031A on E/W pcb & L555 s/c turns (should read 80R) Pt no MITS409P749010 | 14-09-04 |
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| Mitsubishi | CT25M2TX | OK at sw on then no osg aft 30sec. Aft 5mins blank raster for 10sec on chan change or adj Vol | If freezing field chip IC454 AN5521 works ok - chip faulty | 14-09-04 |
| Murphy | M20T01 ZX4200 | No go - just1 Psst at switch on. | C93 ( 1u f , 100v ) o/c by TDA4503 IC. | 14-09-04 |
| Murphy | M22S01 | DEAD FAINT TICKING SOUND | D21 SC LOPTX MAY BE SC ALSO | 14-09-04 |
| Murphy | M22S01 | Field stretched at top, ragged verts & hum bar | C87 47µ 200v | 14-09-04 |
| Murphy | M22S01 ZX4200 | Dead - with faint ticking. | D21 ( BY229P ) s/c , may be due to LOPTX being faulty. | 14-09-04 |
| Pye | L6.1AA M2052/05 | Dead - off with a bang | Replace suspect LOPTx, s/c cap & s/c LOPTr
5422 LOPTx 20" L6 (4822 140 10561)
2422 560nF 5% 250V (4822 121 42634)
7422 BUT11APX (4822 130 10206 | 14-09-04 |
| Pye | M2052 | Dead - no line drive | Opto-coupler CNX82A - (line drive fed thro opto) | 14-09-04 |
| Saisho | CM2080T | Dead - HT only 33v | LOPTr Q402 2SD1555 leaky & replace STR50103A & R502/3 330k | 14-09-04 |