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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: 348
Alba90E529Int dead - freezer squirted on STR54041 restoresQ104 in psu pri14-09-04
Bush2029T (Onwa)Field collapseHigh HT- C909 47µ, C910 10µ, ZD402 12v zener, R442 1R2 2.5w safety, TDA3653B field o/p chip all replaced14-09-04

Bush2029T OnwaWill not sw to st/by after the usual blow up & replacement of 47µ caps etcQ507 BUT11AF s/c & driver Q506 2N5401 o/c - NOTE Q506 markings wrong on pcb - can use 2N5401 in lieu14-09-04
Bush2914No chan storeNo 33v to memory chip IV02 - D405 s/c & 47R feed res o/c14-09-04
Bush2914Red excessR919 680k in RGB o/p o/c14-09-04
Bush2914Squealing from chopper tfmr - sound/pic okCheck sync winding on lopt for wrongly fitted after loptx change14-09-04
Bush2920Tno pic sound ok - blank rasterno line drive - secondary of line drive tfmr o/c (dirty pins)14-09-04
CROWNCTV-7296I have this tv model and at this moment it just has sound, not image. Could possibly be suffering from frame collapse, try turning up the screen voltage on the LOPT slightly and see if a white line appears across the screen, otherwise I would be looking to see if the tube heaters are lit.04-05-06
Finlux3029 3000Line spacing at bottom of screen.CK8 ( .1uf , 63V ) small white square under frame o/p IC heatsink.14-09-04
Finlux3029VDARK BARS ON PICTURE AND OR FIELD CRAMPING PIN 3 LCz14 4u7 250v OC14-09-04
Finlux3029V 3000Dark bars across top of picture plus crampingCk8 ( 0.1uf ) o/c , Cz14 ( 4.7uf , 250v ) .14-09-04
GEC2296Frame top foldover.R813 gone low.14-09-04
GECC2290H 2036 HitDull raster may not have any colour.IC ( TDA3561A ) decoder.14-09-04
GoldstarCF29CService Mode enteringPress MENU, VOL- and PR- buttons on the control board simutaneously, then the TV is changed from normal mode to SVC mode, BUTTON OSD ADJ REFERENCE 6 VL-- Vert Lin 9 VS-- Vert Shift 7 VH-- Vert Hieght 8 SC-- Vert S compensation Crosshatch 1 HS-- Horiz Shift 2 EW Horiz Width 3 EP-- East-West Parabolar Crosshatch 4 EC-- East-West Corner Crosshatch 5 ET-- East-West Trapezium Crosshatch TXT/M PL-- Peak Limit Set to PL45 INDEX GG-- White Balance Set to GG31 Revel RG-- " " " " Set to " " UPDATE BG-- " " " " " " " " Ref) "--" of OSD column means variable number, for example 35 , from 00 to 6314-09-04
GoldstarCF29C20NE/W & field adj problems after changing TDA8350QAdd 220R res across b-e of Q30114-09-04
GoldstarCF29C76N MC51Blank raster & no sound - OSD OKIC182 5v reg near tuner14-09-04
Goodmans2019R/2029RHigh contrast with no control after ZD401 C909 etc replacedIC301AN5601K damaged14-09-04
Goodmans2029TBLANK RASTER WITH NO SOUNDCHECK C113 0.01MFD FOR S/C14-09-04
Goodmans2029TBlank raster with no sound - ok via scartC113 0µ01 100v faulty off pin 2 IC10114-09-04
Goodmans2029TComes on in st/by - R/C will sw TV onQ601 2SA1015, Q604 2SC181514-09-04
Goodmans2029TNo sound/pic - ok via SCARTC113 0µ01 100v faulty off pin 2 IC10114-09-04
HitachiA5 C2976TNSparks around crt base then reverts to st/byLOP stage tuning cap o/c & clean up print on crt base14-09-04

HitachiC2964TNNo E-W & excess widthIC601 TDA8350Q14-09-04
HitachiC2976TNDeadC703 10nF 2Kv bulged & faulty14-09-04
HitachiC2976TNDead - BU2508AF s/cC703 12nF 2kv o/c14-09-04
HitachiC2976TNDead - went off with a bangQuietly ticking noticed - mains smoothing cap 200µ 400v o/c14-09-04
HitachiC2976TNE/W int errorsDry joints L75214-09-04
HitachiC2976TNField - no scan at top just a few fback linesIC501 TDA9160A14-09-04
HitachiC2976TNInt flyback lines on dark scenesCRT int bad con on A1 electrode14-09-04
HitachiC2976TNPic shifted laterally with ragged verts & arcing soundTDA8350Q14-09-04
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