mitsubishi Repair Tips




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Results 620
MakeModel Ch.SymptomProblem SolutionSolutionBy:
MitsubishiEuro 4
Poor HT reg on bright scenesC908 10µ 100v; C909 47µ 50v both 105deg
MitsubishiEuro 4
Pic int fades outDry joint pin 9 of socket to crt base
MitsubishiEuro 4
No tuning memory or signals - can be tuned in but not storedNo -30v at pin 2 IC702 tuning memory chip; standby trnfmr T951 had o/c sec winding which was possible to repair - also could be C958/C562
MitsubishiEuro 4
No start upR975 o/c; Q951 s/c
MitsubishiEuro 4
No sound/pic - HT okNo line drive as line dr trfmr dry joints
MitsubishiEuro 4
No raster - sound ok - field collapseNo 24v to FOP chip IC401 AN5521 at pin 27, R563 0R82 safety res o/c - chip also suspect
MitsubishiEuro 4
Int luminance with parts of pic breaking upIC602 TDA4565 virtually no o/p pin 11 - chip faulty
MitsubishiEuro 4
HT varies with brightness & corrugated vertsR913 hi res contact at mounting lugs; HT = 110v for 51cm
MitsubishiEuro 4
Horizontal lines & streaksC920 470µ in 15v supply line or C908 10µ 100v or C925 10µ 25v
MitsubishiEuro 4
Dead - high HT of 190v (156v) & LOPTr s/cCheck C908 10µ 100v & IC901 STR59041 & C909 47µ 50v
MitsubishiEuro 4
Dead - fuse o/cSTR59041 s/c caused by leaky JC501R Power Sw tr (use 2SC1815 in lieu)
MitsubishiEuro 4
DeadLOPTx s/c between pins 2 & 7
MitsubishiEuro 4
DeadNo psu activity - chopper tfmr o/c winding between pins 5 & 6
MitsubishiEuro 4
DeadQ552 2SD1877
MitsubishiEuro 4
DeadSTR59041 & R2M diode
MitsubishiEuro 4
Black dots & dashes across picDry joint pin 3 IC902 12v reg
MitsubishiEuro 3
St/by onlyLOPTx pins 1&2 s/c to pin 7 - replace LOPTx - HR7461
MitsubishiEuro 3
Replacement of STR4411SMake sure use same suffix chip
MitsubishiEuro 3
Int or perm deadCheck R915/916 start up resistors 2k2 3w
MitsubishiEuro 3
DeadR901 4R7 5w o/c - no other fault apparent