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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: 28
Mitsubishi Euro 10 CT2525TXField collapseno 12v to pin 3 of frame Ic due to o/c corroded print from leaky cap.14-09-04
MitsubishiEuro 10Black lines , poor sync, no txt (until warm)C959, 962 100µ14-09-04

MitsubishiEuro 10DeadC905 470µ 25v14-09-04
MitsubishiEuro 10Dead - Q901 chopper tr blows at sw onD909 3v zener s/c was the cause; also replaced R901 4R7 5w, IC901 TEA216414-09-04
MitsubishiEuro 10dead psu runsseveral electrolytics in psu leak electrolyte onto plug PB causing o/cs14-09-04
MitsubishiEuro 10Field jitter - intDry joint R46114-09-04
MitsubishiEuro 10Field lin faulty when coldGlue around pins of IC50114-09-04
MitsubishiEuro 10HT lowQ953 JC501Q error amp14-09-04
MitsubishiEuro 10int dead (could be ok for days)Same on dummy load proving psu fault. Opto coupler driver tr Q953 was to blame. BC547 suitable replacement14-09-04
MitsubishiEuro 10Int dead esp from coldC905 220µ, C906 47µ C912 4µ7 in psu14-09-04
MitsubishiEuro 10Int loss of sound & picCheck 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 Q10414-09-04
MitsubishiEuro 10Int sw on from coldC905 470µ 25v in start up cct14-09-04
MitsubishiEuro 10Loses analogue memory when sw offThe -30v to IC702 memory chip low due to C962 100µ 50v14-09-04
MitsubishiEuro 10Loud whistle from psu - set operates ok otherwiseQ90214-09-04
MitsubishiEuro 10No pic - OSG & sound okNo 5v reg supply to VIP & CCT chips as Z951 630mA cct prot o/c14-09-04
MitsubishiEuro 10No soundQ952 2SA950-Y leaky14-09-04
MitsubishiEuro 10No soundNo lt supply to audio chip - Q952 2SA950 o/c; BC640 used in lieu14-09-04
MitsubishiEuro 10No soundZ952 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 14-09-04
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
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