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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: 49
Amstrad3121N 11AK12St/by only - psu o/ps present except 12 & 8vIC301 (CTV352/V1.4) and IC302 (ST24C02AB1).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
AmstradCTV3121NF 11AK12No response from R/C although R/C is outputting a signalWas still faulty handset - dry joints IC giving wrong output codes14-09-04
Beko11214TInt no pic - sound okthyristor T701 ESM740 goes o/c intermittently ESM740 no longer available, use TR03-400T and add a 47 Ohm 0.5W resistor from gate to ground.14-09-04
Beko11214TInt no pic - sound okT701 thy ESM740 goes o/c int - NLA -- use a TR03-400T & add 47R ?w resistor from gate to ground 14-09-04
Fidelity3121St/by only - pin 2 LM317 chip I3 only 2v (sw 12v turned on by micro)Micro faulty - order under Amstrad part no 045101070201 (Mono model CTV322) & 045101070201 (stereo model CTV352)14-09-04
FidelityCTV3121NF 11AK12Faintly trippingD22 s/c (5v supply tfrom chopper trfrmr) & chopper transformer faulty14-09-04
Finlux5121service mode entering1.switch on with mains switch. 2. press tv>prg>ext within 5 sec of switch on. 3.key in 04 [will then run through numbers on the display] comes back to 04 and you are ready to start.10, line freq 24 r gain; 25 g gain; 26 b gain; 27 r ref; 28 g ref; 29 b ref; 12 height; 13 v lin; 14 vs correction; 15 v shift; 34 v shift; 35 tuner agc; 38 ref osc; 39 y delay; 17 width; 21 h comp; 11 h posistion; 18 para; 19 corner correction; 20 trapez.14-09-04
HitachiC2121T DaewooSquealing with no sound/picBurning smell coming from IC301 TDA8356 FOP chip which was faulty14-09-04
ITTCT2600 CVC1210Dead - with ticking noise.BU208A , T562 ( BD135 ) , R503 ( 100ohm ) if LOPTX hot change it.14-09-04
ITTCVC1210Blank raster & may have fly back lines.R536 ( 33k ) burnt up.Change it plus T900 ( BC238 ) decoder14-09-04
ITTCVC1210Dead - power supply buzzing.R744 o/c ( safety component ) check R503.14-09-04
ITTCVC1210Int Start upReplace C731 & C733 both ( 10uF ) C713 C703 C701 lift Cathode D712 Add 1.8ohm in series14-09-04
ITTCVC1215Blank Raster & may have fly back linesR536 ( 33k ) burnt up.Change it plus T900 ( BC238 ) decoder14-09-04
ITTCVC1215Confetti interferenceFocus pot14-09-04
ITTCVC1215deadBurn up on L503 - clean up & resolder14-09-04
ITTCVC1215DeadHT only 100v at LOP Tr & driver; BU208A faulty also dry joints IF can- (appeared to be the cause of demise of LOP Tr)14-09-04
ITTCVC1215Dead - blows fuse at switch on.C701 ( 10uf , 350v ) s/c14-09-04
ITTCVC1215Dead - fuse gone.BU508 checks s/c in cct 10uf C701.14-09-04

ITTCVC1215Dead - power supply buzzing.R744 o/c ( safety component ) check R503.14-09-04
ITTCVC1215dead - smell of burning1A fuse o/c; LOP Tr BU208A leaky; HT now correct but other supplies low. Sound OK; No EHT/focus volts - T562 BD135 leaky14-09-04
ITTCVC1215Distortion across centre of picture.Line transistor heatsink earth connection.14-09-04
ITTCVC1215Int - startup.C731 , 733 , 713 , 703 , 701 + add a1.8R in series +of D71214-09-04
ITTCVC1215Int width with bowingLOP Tr heatsink bad joints14-09-04
ITTCVC1215Line collapse (faint)C511 0.33µ burnt & o/c14-09-04
ITTCVC1215Lines across centre of screen when coldLOP Tr heatsink bad joints14-09-04
ITTCVC1215No soundFusible res adj to R1075 o/c; C1075 2200µ 25v s/c14-09-04
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