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I have a tascam 424 MKII Four Track recorder. The Line out RCA Output is very low and distorted. You can only hear it if you increase the volume to maximum. The Individual outputs on the back work fine so there no issue there. I have taken the unit apart and now looking at the line output board. Where do you think the issue is?

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  • videoguys Apr 18, 2009

    No not really, i need to increase the volume to maximum in order to hear any audio. the audio is faint and distorted. it doesn't seem like the usual dirty contact switch issue...

  • videoguys May 04, 2009

    Hi Guys, Yes the input Transitors where shot, replaced them all at all it now fine. Thanks for your help.

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It sounds to me as if the bias on the output amplifier has changed.This can be caused by a resistor that has changed value or capacitor that has changed the filter range of the output.This really isn't something and end user can repair,there are so many variables that can affect the operation of any electronic circuit.The best option is to have a qualified electronics tech repair this as it will require using an oscilliscope and performing a circuit analysis,and with the cost of four track recorders having come way down it would more than likely be more cost efficient to purchase a new one.I hope this info helps.

Posted on Apr 18, 2009

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It seems issue with the volume switch.
Do you hear crackling sound while increasing or decreasing the volume using the nob?

let me know ...
K

Posted on Apr 18, 2009

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