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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 561
MitsubishiEuro 10No sound/pic - no memory & slow R/C responseIC702 EEPROM chip ST24C02A14-09-04
MitsubishiEuro 10not memorising user prefsC962 100µ on -30v supply14-09-04

MitsubishiEuro 10Patterning - clears with a bang on cabinetIC902 12v reg faulty14-09-04
MitsubishiEuro 10pic fluctuate after few secsHT low at 107v (112v) C906 47µ 25v also replaced C90514-09-04
MitsubishiEuro 10Poor contrastQ704 JC501 blanking tr on main pcb14-09-04
MitsubishiEuro 10Popping noise fro speakers in st/by ; 20v supply not being sw offQ5951 JC501-Q faulty or dry jointed, Q952 2SA950-Y, R954, R974 or R985 can also be responsible 14-09-04
MitsubishiEuro 10Sound distIC361 AN5264 audio o/p chip dry joints14-09-04
MitsubishiEuro 10St/by only after being int for previous 2 daysDry joints LOPTr Q552 2SD187814-09-04
MitsubishiEuro 10Switches off immediately after powering upCheck PC951 opto coupler14-09-04
MitsubishiEuro 10 CT21M1TXSideways wobble to picC905 470µ & C906 47µ in psu pri14-09-04
MitsubishiEuro 11 CT25B3Int comes on with small pic - other times okHT was low at 105v (145v) - check/change caps in psu sec14-09-04
MitsubishiEuro 12Black box appears on screen &/or no TXTC958 1000µ 16v in 5v supply14-09-04
MitsubishiEuro 12Blue excessive (or Green/Red)D656 leaky on crt base ( or D655, D657)14-09-04
MitsubishiEuro 12Contrast low with fb linesIC251 pin 7 only 1.2v instead of 2.9v; 12v line low as Q704 leaky14-09-04
MitsubishiEuro 12DeadQ552 2SD1878 s/c; R901 4R7 10w o/c14-09-04
MitsubishiEuro 12Dead - blows Q901C906 47µ 50v14-09-04
MitsubishiEuro 12Dead - Chopper Q901 & lop tr Q552 u/sQ901 serv kit fitted & Q552 2SD1878 also C905 470µ 35v, C906 47µ 50v, C909 2µ2 50v, C920 100µ 25v14-09-04
MitsubishiEuro 12Dead - LOPTr s/c due to High HTCheck R961 150k & C906 47µ 50v & IC95014-09-04
MitsubishiEuro 12Dead - off with bangC906 47µ 63v, Q901 2SD1887, R901 4R7 10w, IC901 TEA2261, D907/8 RD3.0FB1, C920 100µ 63v - C975 47µ 63v was the cause14-09-04
MitsubishiEuro 12Dead apart from 3 chirps at sw onLOPTr 2SD1878 s/c also replaced C956 47µ in psu14-09-04
MitsubishiEuro 12Dead or Int reverts to st/by - LOPTr Q522 fails periodically - possibly due to high HTC906 47µ 50v drive coupling cap - also check C905 470µ 35v, C909 100µ 25v,C920 100µ 25v, R961 150k, R972, R960, D907 RD3.0 s/c & IC950; Q522 = 2SD1877 (21"), 2SD1878 (25"), 2SD1879 (29")14-09-04
MitsubishiEuro 12Dies at sw on with squealingC956 1000µ 35v, C958 1000µ 16v, C964 1000µ 50v leaky & dry joints & IC551 (e/w chip) & TEA2031A damaged14-09-04

MitsubishiEuro 12Excess widthTEA2031A14-09-04
MitsubishiEuro 12Excess width, bowed verts & pic shifted sidewaysLow amp H SYNC fback pulse from LOP - D559 1N4148 s/c - check for dry joints LOPTx14-09-04
MitsubishiEuro 12Field collapseNo 28v to TDA8178S - R976 0R82 in psu o/c14-09-04
MitsubishiEuro 12Field collapseReplace chip - must be same suffix - use Phoenix repair kit from Grandata14-09-04
MitsubishiEuro 12Field collapseReplace TDA8178S & check C956 1000µ 35v, C452 220µ 25v & HT - Mitsi mod kit 2 available from Grandata (cheaper)14-09-04
MitsubishiEuro 12Field collapseIC451 TDA8178S (must use correct one or foldover occurs if TDA8178FS is used - very expensive!) Also check C452 220µ 35v & 122v HT at TP9114-09-04
MitsubishiEuro 12Freq blows SD1887 sw mode transistorMod kit avail from WVE (Q901 modkit) & change TEA226114-09-04
MitsubishiEuro 12High HT - should be 120vC906 47µ 50v, C909 2µ2 50v & 2 x 3v zener diodes D907 & 90814-09-04
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