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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
Make
Model
Problem
Solution
Date
Found: 63
Mitsubishi
C25A4STX Euro 4
Dead , Line OP transistor SC.
Replace C906 47uF 63v , R901 4R7 10W Q901 , IC901 , D907 , D908 ( both RD3.OFB1 ) and C975 47uF 63V.
14-09-04
Mitsubishi
CT2531 Euro 4
Black dots & dashes.
Drys on pin 3 earth of IC902 12v reg in PSU.
14-09-04
Mitsubishi
CT2531BM Euro 4
AFTER REPLACING STR59041 FOUND ODD EFFECT AS IF TO
C908 10mfd 100v
14-09-04
Mitsubishi
CT2531BM Euro 4
DOTS & DASHES NOT UNLIKE SATELLITE EFFECT!
DRY JOINT IC902 12v REG
14-09-04
Mitsubishi
CT2531BM Euro 4
INTERFERENCE ON SCREEN LIKE BLACK SPARKLIES OR WOO
IC902 DRY JOINTED OR C920 470uF 25v
14-09-04
Mitsubishi
CT2531BM Euro 4
Line TR s/c
Replace C908 ( 10uF ) 100V & check R903 R910 R917 for D/J
14-09-04
Mitsubishi
CT2531BM Euro 4
No raster - sound & heaters Ok.
14-09-04
Mitsubishi
CT2534TX Euro 4
NO SOUND OR PICTURE + WON'T STORE STATIONS
CHECK 5v + -30v ON IC702 TRANSFORMER T951 MAYBE O/C ON PINS 4+2
14-09-04
Mitsubishi
CT2553STX Euro 4Z
HT voltage
Should be 156v
14-09-04
Mitsubishi
Euro 4
Black dots & dashes across pic
Dry joint pin 3 IC902 12v reg
14-09-04
Mitsubishi
Euro 4
Dead
STR59041 & R2M diode
14-09-04
Mitsubishi
Euro 4
Dead
Q552 2SD1877
14-09-04
Mitsubishi
Euro 4
Dead
No psu activity - chopper tfmr o/c winding between pins 5 & 6
14-09-04
Mitsubishi
Euro 4
Dead
LOPTx s/c between pins 2 & 7
14-09-04
Mitsubishi
Euro 4
Dead - fuse o/c
STR59041 s/c caused by leaky JC501R Power Sw tr (use 2SC1815 in lieu)
14-09-04
Mitsubishi
Euro 4
Dead - high HT of 190v (156v) & LOPTr s/c
Check C908 10µ 100v & IC901 STR59041 & C909 47µ 50v
14-09-04
Mitsubishi
Euro 4
Horizontal lines & streaks
C920 470µ in 15v supply line or C908 10µ 100v or C925 10µ 25v
14-09-04
Mitsubishi
Euro 4
HT varies with brightness & corrugated verts
R913 hi res contact at mounting lugs; HT = 110v for 51cm
14-09-04
Mitsubishi
Euro 4
Int luminance with parts of pic breaking up
IC602 TDA4565 virtually no o/p pin 11 - chip faulty
14-09-04
Mitsubishi
Euro 4
No raster - sound ok - field collapse
No 24v to FOP chip IC401 AN5521 at pin 27, R563 0R82 safety res o/c - chip also suspect
14-09-04
Mitsubishi
Euro 4
No sound/pic - HT ok
No line drive as line dr trfmr dry joints
14-09-04
Mitsubishi
Euro 4
No start up
R975 o/c; Q951 s/c
14-09-04
Mitsubishi
Euro 4
No tuning memory or signals - can be tuned in but not stored
No -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
14-09-04
Mitsubishi
Euro 4
Pic int fades out
Dry joint pin 9 of socket to crt base
14-09-04
Mitsubishi
Euro 4
Poor HT reg on bright scenes
C908 10µ 100v; C909 47µ 50v both 105deg
14-09-04
Mitsubishi
Euro 4
Poor video/luma/flaring
Glue can cause tis problem - scrape off
14-09-04
Mitsubishi
Euro 4
rolling / excessive width
HT hi at 180v; C908 10µ 100v -40v reservoir cap u/s
14-09-04
Mitsubishi
Euro 4
Severe patt at sw on
C920 470µ 25v
14-09-04
Mitsubishi
Euro 4
Won't store chans - prev stored ones ok
No -30v to EEPROM - comes from st/by tfmr - had o/c winding
14-09-04
Mitsubishi
Euro 4Z
Black lines , poor sync, no txt (until warm)
C959, 962 100µ
14-09-04
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