MITSUBISHI TV Repair: Common Faults and Solutions.
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Results: 1346
Results: 1346
MITSUBISHI Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| MITSUBISHI | EURO 10 | No sound | Z952 cct prot soc2000 in psu o/c. when replaced sound ok thro' scart but none at rf - no sound o/p from if chip ic101 due to l301 det coil | ||
| MITSUBISHI | EURO 10 | No sound | No lt supply to audio chip - q952 2sa950 o/c; bc640 used in lieu | ||
| MITSUBISHI | EURO 10 | No sound | Q952 2sa950-y leaky | ||
| MITSUBISHI | EURO 10 | No pic - osg & sound ok | No 5v reg supply to vip & cct chips as z951 630ma cct prot o/c | ||
| MITSUBISHI | EURO 10 | Loud whistle from psu - set operates ok otherwise | Q902 | ||
| MITSUBISHI | EURO 10 | Loses analogue memory when sw off | The -30v to ic702 memory chip low due to c962 100µ 50v | ||
| MITSUBISHI | EURO 10 | Int sw on from cold | C905 470µ 25v in start up cct | ||
| MITSUBISHI | EURO 10 | Int loss of sound & pic | Check vid i/p & o/p at av sw chip ic2a2 m5132p - if no o/p either off air or scart this chip is sus; if o/p with scart but not off air sus q2a2. if no pic but sound ok check q104 | ||
| 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. |