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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 8DeadCheck IC901 by replacement & R901 o/c. Q901 2SD1887 s/c - remove for testing14-09-04
MitsubishiEuro 8Dead - no 12v supplyZ950 ceramic fuse o/c - upgrade to 5A , & check D952 & C95614-09-04

MitsubishiEuro 8No sync or no colourScrape off brown gunge araound suspect components such as IC501 TDA2579A14-09-04
MitsubishiEuro 8St/by light on & flickering onlyC905 220µ 25v in psu14-09-04
MitsubishiHC761CNO COLOUR ON PLAYBACKUNIT COULD BE IN NTSC MODE TO RESET PUT UNIT TO CLOCK SET AND HOLD COUNTER RESET ON REMOTE FOR 10 SECS14-09-04
MitsubishiHS520VDEADREPLACE R981 IN POWER SUPPLY14-09-04
MitsubishiHS550V(B)ROW OF DOTS ON SCREENREPLACE CHARACTER GENERATOR IC50114-09-04
MitsubishiHS721VE-E AUDIO CUTS OUTR3A0 DRY JOINTED BECAUSE OF GLUE OVERFLOW14-09-04
MitsubishiHS740VINT CUTTING OFF OR NOT ACCEPTING TAPEFIT LED KIT14-09-04
MitsubishiHS750SLOW REWINDFAULTY REEL SENSORS14-09-04
MitsubishiHS761VNO REMOTE FUNCTIONSCHECK A AND B CODES ARE MATCHED AS PER PAGE 17 OF INSTRUCTION BOOK14-09-04
MitsubishiHSM48VTAPE JAMMING INTERMITTANTLYREPLACE DOOR ARM ASSY14-09-04
MitsubishiM srs AV1 srsRF PATTERNING ( SIMILAR TO VIDEOCRYPT )FIT RF LEAD Pt No H24P00101014-09-04
MitsubishiM5 & AV1 srsWHEN SWITCHED ON LED COMES ON GREEN , HT & LT PRESCHANGE C955 TO 3300uF 35v ( Pt No 181P353000 ) EEPROM MAY NEED RE-SETTING .14-09-04
MitsubishiM5 & AV1 srs ( 2POOR PICTURE .CHANGE R521 FROM 82k TO 56k AND FIT ZENER DIODE KIT , Pt No 264P4509014-09-04
MitsubishiM5 & AV1 srs ( 2POOR PICTURE .REMOVE Q6E2 , 6E3 , 6E4 , 6E5 . DECREASE RED DRIVE BY '5' POINTS , INCREASE BLUE BY '3' STEPS . THIS HAS BEEN DONE ON LATER S14-09-04
MitsubishiM5 and AV1 srsRGB OUTPUT SC ( IC660 TEA5101B )CHECK FOR 12v ON WIRE LINK TO PIN 2. IF MISSING OR LOW PICTURE WILL BE AWFUL AND A1 WILL NOT SET COECTLY. Q6E8 LEAKY. REPLA14-09-04
MitsubishiM5 and AV1 srsTUNING DRIFT OR INCOECT AFC OPERATIONFIT 180k + IN4148 IN SERIES FROM TUNER PINS 2 - 6 ( PIN 2 -180k->l- PIN 6 )14-09-04
MitsubishiM5 srsTuning drift . Fit previous mod if not done alreadChange R120 220k to 100k , Change R121 180k to 82k , Change R126 100k to 47k remove R736 22k and fit an 8k2 & 15k 1/6w R-Met14-09-04
MitsubishiVariousInt RGB variations/fback linesDry joints crt base14-09-04
MitsubishiWS55711The WS 55711 will not turn on. The LED on the front will flash when the TV is reset. All the standby voltages are present. It appears the something is telling the processor on the singal board not to turn on the TV.First check the vertical output IC for poor solder connections and check for leaky capacitors ( look for oily film or dark stuff under and around capacitors, when heated with soldering iron will smell like fish ) I have found many leaky caps on these sets causing shut down problems.03-10-05
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