mitsubishi Repair Tips




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MakeModel Ch.SymptomProblem SolutionSolutionBy:
MitsubishiCT3703STX
No pic - ok thro' scartCheck for dry joints in IF can
MitsubishiCT3703STX
E/W & widthCHECK R5005 / R5006 FOR DRY JOINTS
MitsubishiCT3703STX
Dead - LOPTr s/cLOPTr 2SD1879 replaced & C908 10µ 100v, C909 47µ 50v
MitsubishiCT3701TX
Dead & tripping Dry joint on 47µ 200v cap in HT rail
MitsubishiCT3701TX
DeadHT rect D916 s/c BY399 a good substitute
MitsubishiCT33C1STX AND S
INT SYNCDRYS ON TEXT PCB CHECK PLUGS AND SOCKETS ALSO CHECK Q7706 , Q7707 , C7718 22uF 50v Q7706 MAIN SUSPECT
MitsubishiCT33C1STX AND S
INT LOSS OF SYNCDRIES ON TEXT BOARD PLUGS / SOCKETS OR Q7706 Q7707 C7718
MitsubishiCT33C1STX
Sync intVid I/p buffer Q7706 JC501R or possibly Q7707, C7718 22µ 50v
MitsubishiCT33C1STX
Dead with leds flashing intC959 470µ 16v
MitsubishiCT33C1STX
DeadC905 & C910 leaky causing Q901 & D907 s/c - also check IC901
MitsubishiCT32BW1B W1
Dead with no LEDs lit - quietley trippingCheck 2 current sensing res R907 and R915 in PSU. They are 0.22R and 0.27R in parallel for hi res
MitsubishiCT32BW1B
Dead apart from pri HTReplace STRM6529 chopper chip, 0R22 res & check CCt prots in psu sec
MitsubishiCT29BV1S
int black sreen & no sound - Led still lightsQ953 dry joint (6cm back from cooling fin) if OK there is 12 v on collector and 8 v on emitter.
MitsubishiCT29B4STX CT29AS
STUCK IN STBY LED FLASHES 4 TIMES BUT STAYS IN STBIN CHILD LOCK PRESS MUTE + 8 BUTTON ON REMOTE TOGETHER
MitsubishiCT29B3STX
No E-WQ4009 2SA950Y
MitsubishiCT29B3STX
FlaringRemove R606, 607, 608 & change R609 to 560R
MitsubishiCT29B3STX
Field collapseTDA8171 mod kit & check for dry joints
MitsubishiCT29B3EST
Field collapseReplace TDA8178S with STV9379, replace R453 (56k) with 47k, vert lin faulty Q4009 - fitted BC327 in lieu
MitsubishiCT29B2STX Euro 11
Int goes to st/byPrint damage in BCL cct near conn between SCART sub panel & main PCB - The damaged track connects D551 near LOPT and R206 near pin9 IC201 MC44000. You will need to take the PCB out as this place is hidden under the plastic chassis.
MitsubishiCT29B2STX
TrippingCheck C906 47µ 63v & C909 2µ2 63v