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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: 242
AmstradCTV1400Sound going low - int.Adjustable capacitor on sound IF subpanel.14-09-04
AmstradCTV1400Weak contrastR410 120k at pin 2 lopt14-09-04

AmstradCTV1400 (new)Cogged picC517 33µ 160v between chopper & lop tfmrs14-09-04
AmstradCTV1400 newSound low & distC751 470µ 35v in o/p to spkr14-09-04
AmstradCTV1400TDead after C508 47µ & C509 10µ went o/c in PSUQ504 2SC5287; Q503 BC547B; Q502 BC557B; R529 2R2 3W; now tripping - Q507 BUT11AF s/c; Q402 BU2508DF 14-09-04
AmstradCTV1400TSt/by onlyR520 2k7 1/2 watt; Q507 But11a; Q506; C509 10 ufd; C508 47 µ14-09-04
AmstradCTV1401Buzz on sound/caption buzzadj if o/p coil in tuner or replace tuner14-09-04
AmstradCTV1401Dist soundR356 10k o/c14-09-04
AmstradCTV1401Interference bands across screen - affects other tvs in w/sMains sw14-09-04
AmstradCTV1401Tuning - drift.Tuner unit.14-09-04
AmstradCTV1401Weak & distorted sound.R356 ( 10k ) o/c14-09-04
AmstradCTV1409Frame jitter.R427 ( 220k ) replace with 180k14-09-04
AmstradCTV1410DeadR302 6k8 o/c14-09-04
AmstradCTV1410Deado/c relay contacts RLY90114-09-04
AmstradCTV1410Dead - chopper tr 2SD1545 blownCheck Q902 2SB774, ZD902 9v1 zener14-09-04
AmstradCTV1410Field roll on bright scenesC304 2µ214-09-04
AmstradCTV1410Height reducedR302 6k8 hi res14-09-04
AmstradCTV1410Int frame collapse.Change C401 ( 1nf ) , C403 ( .1uf ) , C404 ( 0.022uf ) , C405 ( 1nf )14-09-04
AmstradCTV1410Low emission tube symptomR650 & R651 4k7 hi res14-09-04
AmstradCTV1410No chan storeNo -30v to eeprom - C602 10nF14-09-04
AmstradCTV1410No colour on picture - OSD colours Ok.C322 ( 22nf ) low.14-09-04
AmstradCTV1410No or int no frame scan.C403/4/5.14-09-04

AmstradCTV1410No pic - faint raster when A1s advancedNo scastle pulses pin 17 IC301 - R316 12k o/c14-09-04
AmstradCTV1410No sound or raster.ZD301 ( 9.1zener ) s/c.14-09-04
AmstradCTV1410Vol at max, osd perm on, no tuningMN1220 EEPROM - use Alba version (cheaper)14-09-04
AmstradCTV1410 OnwaDead with HT low at 50v (112v)No st/by relay, R632 33k pin 36 IC603 o/c14-09-04
AmstradCTV1410 OnwaSw itself back on when in st/by - intFlexing panel brought fault on - R920 & R302 were physically touching bypassing relay14-09-04
AmstradCTV1410OnwaField cramp atbottomR408 18k o/c14-09-04
AmstradCTV1600Field collapseR709 22k o/c14-09-04
AmstradCTV1600Field collapseDry joint pin12 LA7800 timebase chip (12v supply)14-09-04
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