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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: 6873
AikoCT20Int deaddry joint R23314-09-04
AikoCT20Int field - heightFOP tr Q303 2SB546A faulty - used TIP42C in lieu14-09-04

AiwaC202KERField collapseFusible link 1500 marked as jumper lead from loptx to reg via D681314-09-04
AiwaCXZR800KAt sw on relay clicks "DEMO" displayed then dead - keeps repeatingCheck 2 x 2SK2723 FETs on sound o/p heatsink14-09-04
AiwaVXD1420Pin code removalEnter wrong no 3 x, then press Vol- on set & "7" on R/C for 5 secs when "protected" appears14-09-04
AiwaVXD2120KPin code resetting when lostunplug set for 1 hour plus. reduce volume to minimum. simultaneuously press Volume down on unit and "7" to reset pin code and customer ID14-09-04
AiwaVXS140Blank raster & no VCR funct except clockFR551 [0.1 ohm 1/6 Watt] O/C 14-09-04
AiwaVXS140Lack of brightness on Video playback & off airNo 800V screen drive Increase FR752 from ( 1K ) to ( 1K5 ) PtNo 8702238806014-09-04
AiwaVXS140TV sect remains on (No st/by)115V power switching transistor Q550 [2SB816E] was S/C C-E14-09-04
AiwaVXT1000Dead TV sectIC4 STK7348, R103 1R5 3w, R104 27R 3W, R105 1k 1/2w. C90 1µ 50v was to blame14-09-04
AiwaVXT1000STK7348 chopper chip int failsC88 3300pF 1kv can be the cause even tho' it looks ok14-09-04
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
AiwaVXT1000MkIISound no picture.Replace IC4(STK7348) and C88(3n3 1kv).14-09-04
AiwaVXT1010KDead - goes into st/byR515 3M3 , C517 C526 470uF 10v , C524 47uF 63v14-09-04
AiwaVXT1010KInt sw onReplace STK73907, C514 0µ082 pulse cap, Q501 2SK212, Q510 2SC1815. Change R520 to 68k & C524 to 220µ14-09-04
AiwaVXT1010KNo cold start upC524 47µ 10v14-09-04

AiwaVXT1400KERRed weak in picReplace C905, 7 & 9 1µ 50v in RGB drives14-09-04
AiwaVXT1410St/by onlyDry joints power/stby key14-09-04
AiwaVXT1410KPoor start up from cold, patterningC522 2µ 50v, C523 100µ 50v14-09-04
AiwaVXT1420kDeadStart up Res R502 1M & R503 820k14-09-04
AiwaVXT1420KSt/by onlyLOPTr leaky14-09-04
AiwaVXT1450KField collapseFR812 3R9 1w fusible o/c - no other fault found14-09-04
Akai2870TEXT ODDITYREPROGRAM MICRO.PRESS TEXT ON REM , S ON TV , THEN TEXT AGAIN14-09-04
AkaiCT20K2PADark pic - increasing sub brill resulted in field collR436 120k o/c14-09-04
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