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    Edifier X600 Sub-Woofer NoSound (beat)

    yahooo I fixed my problem, the wire from the Circuit to the woofer was broken, I just did soldering of the wire and now woofer's r working 100%
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    Edifier X600 Sub-Woofer NoSound (beat)

    I have Edifier X600 2.1 System, but the problem is that my Satellite Speakers are working fine but my Sub-woofer is not working (no beats). :-( A friend of mine told me that usually there comes problem of "IC", I being student of Elect.Engg (4th semester ) want to repair my woofer my self...
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    IC checker

    How to check that whether an IC is working or not using DMM or anyother simple method. I want to make a universal IC checker. ??? Please Reply In detail...
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    Dell D600 LaptopCharger

    This is the second time that my Laptop Charger is not working.... Tell me the basic steps for checking it's circuit
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    Dc Power supply !!!

    Iam going to make a DC power supply.... I have a 220V (rms) to 20V (rms ) A.C step down transformer with 3.5A rating. My power supply will have following features:- 1. +5v (D.C) (LM 7805 IC) 2. +0 -- +15V [variable] (D.C) (LM 317 IC) 3. +0-- -15V [variable] (D.C) (LM 337 IC) 5. 18.5V...
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