mitsubishi Repair Tips
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Results 620
Results 620
| Make | Model Ch. | Symptom | Problem Solution | Solution | By: |
|---|---|---|---|---|---|
| Mitsubishi | Euro 10 | Int dead esp from cold | C905 220µ, C906 47µ C912 4µ7 in psu | ||
| Mitsubishi | Euro 10 | int dead (could be ok for days) | Same on dummy load proving psu fault. Opto coupler driver tr Q953 was to blame. BC547 suitable replacement | ||
| Mitsubishi | Euro 10 | HT low | Q953 JC501Q error amp | ||
| Mitsubishi | Euro 10 | Field lin faulty when cold | Glue around pins of IC501 | ||
| Mitsubishi | Euro 10 | Field jitter - int | Dry joint R461 | ||
| Mitsubishi | Euro 10 | dead psu runs | several electrolytics in psu leak electrolyte onto plug PB causing o/cs | ||
| Mitsubishi | Euro 10 | Dead - Q901 chopper tr blows at sw on | D909 3v zener s/c was the cause; also replaced R901 4R7 5w, IC901 TEA2164 | ||
| Mitsubishi | Euro 10 | Dead | C905 470µ 25v | ||
| Mitsubishi | Euro 10 | Black lines , poor sync, no txt (until warm) | C959, 962 100µ | ||
| Mitsubishi | Euro 1 | Diagonal pattern of dots across screen | R914 100R in psu snubber cct o/c | ||
| Mitsubishi | EE4 CT25M5BT | Dead - blows chopper tr s/c | mod, i.e. change the 220R res on print side of CRT base to 1K2 1/2watt,this apparantly prevents a surge from blowing the chopper at switch off | ||
| Mitsubishi | EE4 CT25M5BT | Chopper Tr blows aft few days | Replace Q901 (chopper), R901 (4R7 10W), D909 (3V Zener) and change 220R resistor on the print side of the CRT PCB to 1K2 1/2 watt. | ||
| Mitsubishi | EE4 CT21M5BT | Reverts to st/by aft 15mins with a sqeal | HT was too high at 137V, due to R954 (120K in this set) going high | ||
| Mitsubishi | EE4 (M5 models) | To enter service mode | Press & release S701 next to aerial socket, then press "9" on hset within 5 secs. Buttons 2 & 8 select adj code, buttons 4 & 6 adj data value. Button 1 cancels written data, button 0 stores data into EEPROM see article TV Jan 99 for more details | ||
| Mitsubishi | EE4 | Trips once at sw on - ok on dummy load | TEA5101B RGB o/p chip IC660 s/c | ||
| Mitsubishi | EE4 | Service mode accessing | press the service switch (s701, next to the aerial socket) and then button 9 within 5 seconds Press the * button to toggle between the VCJ or OPTION adjustment display. Press buttons 2 or 8 to increase or decrease the adjustment code number. Press buttons 6 or 4 to increase or decrease data value. After the adjustments, press 0 to write the adjustment data to the EEPROM.To cancel a change, press button 1 and all data adjusted since the last EEPROM write will be reset.TUN 0 Option settings for CT25AV1BS = SAT 1, AUD 10, ATS 1, STD 1, SYS 1, AV1 2, EEX -, SPK 1, EEP -, ABG 02, A1 02, AL 00, ADK 15, MNP 70, TXT -, FFT 1, VOL 74, HYP 1, SCP 20, FMP 23 | ||
| Mitsubishi | EE4 | Dead or int dead - brief flash of green led at sw on | Dry joints opto isol PC951 | ||
| Mitsubishi | EE3W | Service mode access | Press MENU, 2, 3, 5, 7 to access service mode, then press * (star key). Use 2 & 8 to navigate up and down the options, 4 & 6 to alter values. Press 0 (zero) to memorise new value & the info turns red to denote "saved". Finally go to standby to exit menu. | ||
| Mitsubishi | EE3 CT25AV1BDS | Herringbone pattern, flashing lines etc with no pic for 5 minutes. Picture then slowly appears | C956 470uF 6.3V | ||
| Mitsubishi | EE3 | Low contrast, smeary, f back lines | R686 on crt base (1k8) |