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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: 85
AlbaCTV3359No pic - sound okLoss of line drive - Q601 BD679A reg; print flash over between base Q601 & o/p scan coil skt14-09-04
AlbaCTV3400Field foldover at top when cold - HT low at 96v (115v)Q506 o/c14-09-04

AlbaCTV3408DeadRP4 o/c in PSU 330K14-09-04
AlbaCTV3409Dead fuse ok Q801 s/cReplace Q801 BUZ77, R809 0R47 ?w fusible, R805 330k 1W14-09-04
AlbaCTV3409 11AK20SLED stays green (pic ok)Q803 BC547 st/by sw tr leaky14-09-04
AlbaCTV3458DeadRP4 330k o/c14-09-04
AlbaCTV3458Dead - BUZ90 chopper s/cD5 FR144 in snubber network s/c - also replace R4 & 5 & TDA460514-09-04
AlbaCTV3458Dead with mains fuse blownC8 1nF 1kv leaky14-09-04
AlbaCTV3458Field collapsed to 1"R25 12k o/c - feed to 33v supply14-09-04
AlbaCTV3459Int Field collapse with it turning offBlanket resolder field stages even if they look ok14-09-04
AmstradCTV3012Int line - line drive low in fault conditionR601 4k7 hi res (12k)14-09-04
AmstradCTV3021NDeadF01 2A fuse o/c, Q1 BUZ90A s/c, R5 680k & R4 270k check for o/c14-09-04
AmstradCTV3021NDead - chopper Tr s/c & fuse o/cR4 270k o/c & TDA4605-3 (must have "3" suffix)14-09-04
AmstradCTV3021NDead - LOPTr instantly dies at sw onC602 7n1 1.6kv had hairline crack which couldn't be seen in cct14-09-04
AmstradCTV3021NDead no st/by ledReplace R5 680k 1/2w in psu14-09-04
AmstradCTV3021NMagenta picR209 82k 1/2w on crt pcb o/c & adj grey scale14-09-04
AmstradCTV3021NWhen replacing FETUse BUX91 (BUZ90 will not last)14-09-04
AmstradCTV3028Bright raster with flyback linesDry joints CRT base pcb by ribbon cable14-09-04
AmstradCTV3028DeadMains bridge rect s/c & fuse o/c - fit 2n2 1kv caps across rects to prevent re-ocurrence14-09-04
AmstradCTV3028Dead - no st/byR103 47k hi res14-09-04
AmstradCTV3028No pic via scart - ok with off air sigsVid present pin 15 TDA8361 jungle chip & AV sw volts ok at pin 16 - chip faulty14-09-04
AmstradCTV3028No signals - no supply to AV pin of tunerR124 o/c14-09-04

AmstradCTV3028No tuning - osd okR124 15k back edge of panel in centre o/c14-09-04
AmstradCTV3028NDead - 2A fuse o/c; BUZ90AF chopper s/cR108 270k o/c & LOP tr for tripping14-09-04
AmstradCTV3028NNo tuningR124 15k 1w o/c near chopper tfmr under tube14-09-04
AmstradCTV3032NManual tuningpress 1 - press TV- press menu and hold it, the first menu is for sound keep the button pressed and the OVERVIEW menu appears then release and press menu again this will give you a tuning menu, select the preset number then- with the cursor keys move down to tune and when you get the station you want move down to store then press vol + the word stored appears and then press TV 14-09-04
AmstradCTV3121Dead with psu tickingC5 100µ 400v mains smoother14-09-04
AmstradCTV3121NBlank raster only when A1 advancedR22 0R22 in sec of psu o/c14-09-04
AmstradCTV3121NSt/by onlyR22 0R22 risen in value to 3R614-09-04
AmstradCTV3121NSt/by onlyR22 0R22 safety res o/c14-09-04
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