| Make | Model | Problem | Solution | Date |
| | | |
| Found: 86
|
| Matsui | 25M1 | Dead | D354 off sec of tfmr dry joints & dry joints both regs | 14-09-04 |
| Matsui | 25M1 Mk111 | Dead - no lights with psu ticking | St/by tfmr Pt no PTO146a from CHS | 14-09-04 |
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| Matsui | 25M1 Mk2 | St/by only - light off when chan button pressed | No B+ volts - R624 120k in start up o/c, also check R620 120k | 14-09-04 |
| Matsui | 25M1 MkII | In St/by - led flashes slowly when brought out of st/by | Chopper tr Q613 2SC4429 s/c - blew when using meter to check it for s/c! - also blew meter; Q612 2SC3807 s/c & R620/621 120k (original cause) - one of them o/c. R602 3R9 7w o/c & o/c mains fuse | 14-09-04 |
| Matsui | 25M1 MkII | St/by only | R620 / 624 120k o/c | 14-09-04 |
| Matsui | 25M1 Sanyo EB2 | No memory | eeprom IC. ST24C02B (IC790) To initialise new chip, press and hold function button on tv, while pressing recall on remote handset. this gives message on screen Item-1 Set-0 Confirm Set number of all items is "0" by pressing the function button. If it is not "0" change to "0" by the level(+/-) button. (Changing the set number, automatically memorised.) Press the Recall buton to return to the normal TV mode. Then tune in and store channels as usual | 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 | CT21M1BM CT25M1 | POPPING NOISE IN STBY WORKS OK WHEN ON | Q951 Q952 OR DRYS ON CONNECTOR PB , R954 , R974 , R985 | 14-09-04 |
| Mitsubishi | CT21M5B CT25M5B | Tuning drift mainly at top end of band | Add ( 180K ) & Diode ( IN4148 ) in series cathode of diode to 5V pin 6 Tuner & res to Tuning Voltage line pin 2 | 14-09-04 |
| Mitsubishi | CT25M1 | Juddering raster | C906 4µ7 25v chopper dr cap | 14-09-04 |
| Mitsubishi | CT25M1STX | BLANK/NO VIDEO | Q702 JC501 | 14-09-04 |
| Mitsubishi | CT25M1TX | Dead - psu working | crack in print coll of lop tr - also change C906 47µ, C905 470µ | 14-09-04 |
| Mitsubishi | CT25M1TX | Field roll int & bent verts | C906 47µ 25v in psu | 14-09-04 |
| Mitsubishi | CT25M1TX | HORIZONTAL LINES ON SCREEN AND WHISTLING | C956 2200uF 16v | 14-09-04 |
| Mitsubishi | CT25M1TX | INT BLANK SCREEN+NO SOUND | IC2A2 Q2A2 AUDIO ONLY Q104 | 14-09-04 |
| Mitsubishi | CT25M1TX | INT LOSS OF S/V , CHECK FOR VIDEO IP. AND OP. AT AV | IF THERES AN OP. WITH SCART BUT NOT RF , SUSPECT Q2A2 JC501-QR PtNo 266P064010 IF NO PIC BUT SOUND OK CHANGE Q104 JC501. IF U | 14-09-04 |
| Mitsubishi | CT25M1TX | LOW CONTRAST AND FLYBACK LINES | Check for 2.9V at pin 7 IC251 if low Q704 u/s | 14-09-04 |
| Mitsubishi | CT25M1TX | MOTOR BOATING IN STANDBY | REPLACE Q951 IN POWER SUPPLY | 14-09-04 |
| Mitsubishi | CT25M1TX | Motorboating type hum from spkrs in st/by | Q951 leaky in PSU sec | 14-09-04 |
| Mitsubishi | CT25M1TX | No pic - sound ok | Loss of 5v to txt dec. Z95 cct prot 630mA in psu o/c | 14-09-04 |
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| Mitsubishi | CT25M1TX | WEAK VIDEO NO SYNC | Q104 JC501 LEAKY-VIDEO AMP | 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 |
| 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 |
| Mitsubishi | CT25M3 | Slow response to front & R/C commands | Resolder Xtal on Txt panel | 14-09-04 |
| Mitsubishi | CT25M3TX | Trips at sw on - ok when LOP dis'd HT correct at 145v | LOPTr leaky - check for dry joints esp IC951 | 14-09-04 |
| Mitsubishi | CT25M3TX Euro 14 | Difficult to come on from st/by, wont stop at stations & graphics wrong | C955 2200µ 25v leaked over EEPROM IC702 X24CO4P - both need replacing | 14-09-04 |