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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: 39
AlbaCTV840deadchopper tr BU508AT s/c, R902 2R2 safety res o/c, C909, 910 47µ 50v HT now steady at 111v14-09-04
AlbaCTV840Field collapseC404 22nf int s/c req replacement of field chip LA8730 & supply diode14-09-04

AlbaCTV840No tuningR125 47R o/c, C127 470µ 16v s/c14-09-04
AlbaCTV840No tuning/store or analogue adjust apart from Vol-30v supply low pin 9 IC601 - C919 330µ 50v esr >100, also check ZD601 30v zener14-09-04
AlbaCTV840 OnwaBlack vert bars with background picC420 22µ 160v o/c14-09-04
AlbaCTV840 OnwaNo tuning although the set displayed tuning driveR125 ( 47R ) was opencircuit because C127 ( 470uF 16V ) was short circuit .These components form a filter in the 9.25V supply14-09-04
AlbaCTV841deadchopper tr BU508AT s/c, R902 2R2 safety res o/c, C909, 911 47µ 50v HT now steady at 111v14-09-04
AlbaCTV841Dead with 4R7 surge limiter o/cCheck 4 x 4n7 ceramic caps in mains bridge rect for s/c14-09-04
AlbaCTV841Only tunes over lower bandsR646 10k 2w o/c (in front of loptx)14-09-04
AlbaCTV841 OnwaSt/by only - relay chatters when sw held inD40114-09-04
AlbaCTV841 OnwaNo pic - appears bright when A1 advancedR430 180k in beam lim o/c14-09-04
AlbaCTV842Dead - no line driveLine dr tfmr o/c due to glue attack - managed to repair14-09-04
AlbaCTV842No colourCap 0µ47 connected to pin 12 of TA7698AP decoder/tb chip14-09-04
AlbaCTV842No tuningR108 10k o/c14-09-04
Bush2850NTX TV8Dead apart from led flicker at sw onC203 47µ 250v - checked ok out of cct14-09-04
BushCTV855Dead - int.Dry joints on line coil & LOPTX.14-09-04
BushITV8401 11AK20SSt/by only - r/c not operating tvInitialise remote by pressing arrow L, arrow R & arrow Down as well as "1" at the same time14-09-04
BushTV8Dead aft smokingPCB track between C307 & scan coil plug burnt. BUH515D loptr T308 s/c; TDA8170 fop chip IC401 duff; R408 0R22 in supply to it o/c14-09-04
TriumphCTV8000Dead.Check for hairline crack on bottom PCB.14-09-04
TriumphCTV8205No field scan.R709 ( 22k ) in series with field hold control o/c.14-09-04
TriumphCTV8208Frame jitter.R427 ( 220k ) replace with 180k14-09-04
TriumphCTV8209Bright white rasterC63 47pf o/c14-09-04

TriumphCTV8209Bright white raster.C62 ( 47pf ) o/c.14-09-04
TriumphCTV8209Dead.IC TDA4600 chopper control IC , 2.2ohm surge limiter.14-09-04
TriumphCTV8209Int going into standby.Drys on line driver TX.14-09-04
TriumphCTV8209Line collapse.C121 o/c.14-09-04
TriumphCTV8209No red.TR11 ( BF869 ) o/c.14-09-04
TriumphCTV8209Overbright raster with flyback lines.C120 o/c.14-09-04
TriumphCTV8210Dead - 1A fuse o/cD507 s/c; STR451 s/c; HT decoupling cap 100µ 160v faulty14-09-04
TriumphCTV8210Dead - intermittent.Check for breaks in print on CRT base.14-09-04
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