aiwa Repair Tips




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Results 41
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Aiwa VXT1400
When switching to STBY raster remains and buzz noise is heared from the speakersCause: +B voltage 103 V does not switch-off. Remedy: Replace defective C541
AIWACX-NS 559LH
Apenas led Std by acesoQ103 aberto 2SA1235
AiwaVXT1450K
Field collapseFR812 3R9 1w fusible o/c - no other fault found
AiwaVXT1420K
St/by onlyLOPTr leaky
AiwaVXT1420k
DeadStart up Res R502 1M & R503 820k
AiwaVXT1410K
Poor start up from cold, patterningC522 2µ 50v, C523 100µ 50v
AiwaVXT1410
St/by onlyDry joints power/stby key
AiwaVXT1400KER
Red weak in picReplace C905, 7 & 9 1µ 50v in RGB drives
AiwaVXT1010K
No cold start upC524 47µ 10v
AiwaVXT1010K
Int sw onReplace STK73907, C514 0µ082 pulse cap, Q501 2SK212, Q510 2SC1815. Change R520 to 68k & C524 to 220µ
AiwaVXT1010K
Dead - goes into st/byR515 3M3 , C517 C526 470uF 10v , C524 47uF 63v
AiwaVXT1000MkII
Sound no picture.Replace IC4(STK7348) and C88(3n3 1kv).
AiwaVXT1000Mk2
No pic sound okC88 3n3 1kv burnt
AiwaVXT1000Mk2
Dead TV sect - vcr sect okC88 0.0033µ 1kv burnt; STK7348 psu chip s/c; R109 3R9 7w o/c
AiwaVXT1000Mk2
DeadSTK7348 psu chip & C88 0.0033pf 2kv
AiwaVXT1000 Mk2
Failure 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.<<
AiwaVXT1000 Mk2
Dead - no line driveD7 9v1 zener & C105 330µ 16v both s/c
AiwaVXT1000 Mk2
DeadSTK7348 s/c pins 3 & 7, also R103 1R5 3W o/c, R104 27R 3w, R105 1k 1/2w & C90 1µ 50v
AiwaVXT1000 Mk2
DeadHt ok at 120v - ICP1 o/c
AiwaVXT1000
STK7348 chopper chip int failsC88 3300pF 1kv can be the cause even tho' it looks ok