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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: 292
AiwaC202KERField collapseFusible link 1500 marked as jumper lead from loptx to reg via D681314-09-04
Amstrad3021Bright pic with fb linesR111 220k on crt base14-09-04

Amstrad3021NDeadQ1 BUZ90A s/c, F01 2A o/c, R1 270k 1w o/c, R5 680k also replaced14-09-04
AmstradCT3028No signals or tuning voltsR124 15k o/c14-09-04
AmstradCTV2020/2028 Bush 2866Searches but finds no sigsR124 15K 2W O/C located behind the PSU in the centre nearest the front controls14-09-04
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
B & O2500 LX2802Int reverts to st/by briefly with blank raster on returnTr6 - use BC338-40 as replacement - checks ok out of cct14-09-04
B & O4402deadHT only 17v; 5C10 47µ o/c14-09-04
B & O4402 35XXDeadCheck C10 & C12 ( 47u f )14-09-04

B & O4402 35XXNo sound or picture.5C10 ( 47u f ) o/c.14-09-04
B & O4402 35XXWidth - line collapse.Poor connections on scan coils leads.14-09-04
B & O4402 35XXWidth - varieing intermittentley.Poor connections on scan coils leads.14-09-04
B & O5102 77XXIntermittent negative picture.Dry joints on i.f. board connector , in vision detect can.14-09-04
B & O5102 77XXNegative picture - intermittently.Drys on IF edge connector , & earthg lugs in vision can.14-09-04
B & O7423 7102St/by onlyDry joints Plug P8 & 9 on control pcb14-09-04
B & O7702 7XXXXDead with no standby LED - intermittent.Drys on or T2 standby transformer.14-09-04
B & O8102 71XXWon't come out of st/by - intR20 ON REMOTE / MICROPROCESSOR PCB HIGH IF 2M7 REPLACE WITH 820k14-09-04
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