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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: 111
AiwaVXT1000 Mk2DeadHt ok at 120v - ICP1 o/c14-09-04
AiwaVXT1000 Mk2DeadSTK7348 s/c pins 3 & 7, also R103 1R5 3W o/c, R104 27R 3w, R105 1k 1/2w & C90 1µ 50v14-09-04

AiwaVXT1000 Mk2Dead - no line driveD7 9v1 zener & C105 330µ 16v both s/c14-09-04
AiwaVXT1000 Mk2Failure of IC STK7348 in tv psuReplace:R102. 33ohmlW Part No S5 34A 330 000 R104 27ohm 3W Part No Sl 330 703 000(6.25UKP) RlOl 33ohm7W Part No Sl 330 862 000(8.37UKP) Also please check and if necessary replace:R103(3.76UKP) R105 Replace as required. R109(4.00UKP) NOTE: Do not replace IC on its own.<<14-09-04
AiwaVXT1000Mk2DeadSTK7348 psu chip & C88 0.0033pf 2kv14-09-04
AiwaVXT1000Mk2Dead TV sect - vcr sect okC88 0.0033µ 1kv burnt; STK7348 psu chip s/c; R109 3R9 7w o/c14-09-04
AiwaVXT1000Mk2No pic sound okC88 3n3 1kv burnt14-09-04
AkaiCT20K2PADark pic - increasing sub brill resulted in field collR436 120k o/c14-09-04
AlbaCTV3409 11AK20SLED stays green (pic ok)Q803 BC547 st/by sw tr leaky14-09-04
BPL9002ECR Mk2Dead - caps in psu sec had blown upHi HT - change Q511 2SA1015 , R552 91k, R555 47k & opto coupler14-09-04
Bush1433 11AK20Blank screen with 3 lines top lh of screen then shuts down (Anti-theft password set)Enter correct password!14-09-04
Bush1433 11AK20Bright B pic with FB linesQ907 BF423 leaky or equiv in other col14-09-04
Bush1433 11AK20DeadR802 75k 2w o/c or R809 0R47 o/c14-09-04
Bush1433 11AK20Dead - internal fuse intactpower surge blown bridge rects - replace also safety res 2R2 5w14-09-04
Bush1433 11AK20Int dead or reverting to st/byDry joints IC802 reg & IC401 jungle chip (under IF shielding plate)14-09-04
Bush1433 11AK20LH side pic purple, RH side greenIC402 STV2180A faulty14-09-04
Bush1433 11AK20No pic - sound okLoptx arcing with C615 - LOPTx faulty14-09-04
Bush1433 11AK20No pic/sound - HT okD604 BA157 LOPTx sec s/c14-09-04
Bush1433 11AK20St/by onlyNo clock/data between IC502 EEPROM & Micro replace EEPROM pt no ALBA362162402014-09-04
Bush1433 11AK20Watery/rolling pic - may be intC407 47nF 50v vid coupling cap to IC401 pin 13 leaky14-09-04
Bush1433 11AK20D2Dead2R2 5w & 0R33 resistors off chopper trfmr blows at sw on - C814 220pF 1kv in psu pri s/c14-09-04
Bush1433 11AK20M-3Trips at sw onD604 200v rect s/c - fitted RGP15 in lieu14-09-04

Bush1433 11AK20SLED stays green (pic ok)Q803 BC547 st/by sw tr leaky14-09-04
Bush1433 11AK20SPoor video HF responseCheck R931, R932 & R933 150k on crt base14-09-04
Bush1434 11AK20M-3Int tuning - no sigsresolder SMD`s around R584 / R521, located on underside of PCB near IC50114-09-04
Bush1434 11AK20M-3Shuts down with ticking noiseD604 BA157 s/c14-09-04
Bush1473T 11AK20Field collapseR709 sm 10k adjacent to FOP chip not properly soldered in14-09-04
Bush1474T (AK20)DeadD811 in sec of psu - used BYV28/15014-09-04
Bush1497ITV/3 11AK20SHeight stretched & width in on rh sideHT pot never been soldered14-09-04
Bush2868NTX 11AK20Child Lock removalpress P+ and P- on front 5 times14-09-04
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