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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: 172
AkaiCT2567St/by onlytiming constant capacitor for the standby IC is leaky. The IC is mounted on a heatsink in the middle of the board. C093 is a pair of surface mount capacitors [in parallel] connected between pins 2 and 4 of the IC. Remove these capacitors and replace them with a 220nf.14-09-04
AkaiCT25792 inch gap at rh sideC516 470pf 1.6kv next to lop tx14-09-04

AkaiCT2579NSteady, Oversized picC513 scan corr cap dry joint14-09-04
AkaiCT2585Dead - lop tr s/cDry joints & line dr tr T507 BD337-25 int causing arcing noise14-09-04
GoldstarCIT2570FField cramped & foldover with no lum for first 2 minsC308 2200µ in 16.5v rail hi esr14-09-04
GoldstarCIT2588Pic int blanks out (no lum)Replace VC53 on Txt pcb14-09-04
GoldstarCIT2588FPICTURE BLANKS OUT INT.VC53 Pt No 181-169A14-09-04
GoldstarPC12B CIT2570FLines over pic & no R/C operationC827 1000µ 25v, C830 470µ 16v14-09-04
HitachiCPT2508DeadQ901,IC901,R901,ZD901 4v7,D904,R913,C928 and C919. Also there was blown print between D904 and ZD901.14-09-04
HitachiCPT2508Dead - Field coupling cap C610 100µ 25v explodedLow res across 152v line due to s/c between field & line scan coils14-09-04
HitachiCPT2508TrippingReplace C910 & 916 33µ 10v; C919 4n7 2kv; C927 2n2 2kv. Change C914 to 10µ, check C909 150µ 400v, R919, R920, R931 & R93214-09-04
HitachiCPT2589FRAME COLLAPSEREPLACE R715 AND IC60114-09-04
HitachiCPT2598Field collR715 1R safety res, TDA3654 fop chip, D60114-09-04
HitachiCPT2598No colour - ok on TxtChroma delay line14-09-04
HitachiCPT2598Wavering picture with colour dropout which would randomly blank out to a blue screen in short bursts. Occasionally there would be no sound or vision at switch-on and only the channel change working.Replace C933 (2,200uF 25V) whose ESR had risen to 27 and C932 (470uF 16V) whose ESR had risen to 48. These two capacitors sit next to each other between the delay line and a heat sink. They were replaced with high temperature types.14-09-04
HitachiG7P MkII CPT2508Dead - LOPTr blowsIC701 TDA257914-09-04
HitachiG7P MkII CPT2508Pic pulls to right when heatedQ905 connection to pcb suspect - resolder14-09-04
ITTCT2500 CVC1150Dead.TR716 , 715 , D685 s/c , caused by TR731 ( BC328-52 ) s/c , D71414-09-04
ITTCT2512 CVC1200No EHT.TR741 ( BC328 ) right hand side of chassis.14-09-04
ITTCT2512 CVC1200No go Standby LED on.R744 o/c right hand side of chassis.14-09-04
Mitsubishi Euro 10 CT2525TXField collapseno 12v to pin 3 of frame Ic due to o/c corroded print from leaky cap.14-09-04
MitsubishiCT21AV1 CT25AV1Failure of Q552Order & fit AVM5KIT14-09-04

MitsubishiCT21AV1 CT25AV1Tuning drift mainly at top end of bandAdd ( 180K ) & Diode ( IN4148 ) in series cathode of diode to 5V pin 6 Tuner & res to Tuning Voltage line pin 214-09-04
MitsubishiCT21M1BM CT25M1POPPING NOISE IN STBY WORKS OK WHEN ONQ951 Q952 OR DRYS ON CONNECTOR PB , R954 , R974 , R98514-09-04
MitsubishiCT21M5B CT25M5BTuning drift mainly at top end of bandAdd ( 180K ) & Diode ( IN4148 ) in series cathode of diode to 5V pin 6 Tuner & res to Tuning Voltage line pin 214-09-04
MitsubishiCT2525Dark pic - long time to come onC906 100µ 50v leaky14-09-04
MitsubishiCT2525Flyback lines at top of picC411 100µ near fop chip14-09-04
MitsubishiCT2525Int dead esp when coldC906 47µ 25v, C905 220µ 25v, C912 4µ7 50v14-09-04
MitsubishiCT2525Int various inc no start up, display/analogue settings intCheck electrolytics in psu esp C956, C959, C962, & C96414-09-04
MitsubishiCT2525No Sound/pic with int trip - HT lowZ951 630mA fuible link14-09-04
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