Hello-It wasn't stated if the noise is found in one channel or both. The
trick is to work backwards in the circuit and reach the point where the
noise is introduced . A signal tracer would find the issue.
Ceramic capacitors are usually stable for the life of the unit. I would look
for an electrolytic coupling capacitor that might have dried out - and if
individual transistors are used in the circuit, then replacements are likely
Integrated circuits would possibly be more problematic, but that's where a
parts donor could solve the problem.
If the problem affects both channels, then a power supply issue could be
causing it. - Mickey
M.C.Productions Vintage Recordings
710 Westminster Avenue West
From: Lou Judson
Sent: Friday, September 28, 2018 11:38 AM
To: [log in to unmask]
Subject: Re: [ARSCLIST] TEAC A-2340 "white" noise
Sorry, just noticed the “white” in the subject…
On Sep 28, 2018, at 9:32 AM, Lou Judson <[log in to unmask]> wrote:
> If you want a response, you should add it to the reply to field! :-)
> What sort of noise? Steady state white noise? Crackly irregular noise?
> Hard to believe he can’t trace it; at some point it is there and before
> that point it isn’t. Is it in playback, source monitor, or both? If on
> playback, it could be the source/tape switches, that happens on my Sony 4
> track sometimes.
> I think - not sure - that a deck of that vintage can have compoments
> replaced on all the boards individually; not needing complete board
> replacement… and there are units on ebay for $149 to 600 which you could
> get as a parts donor…
> Best luck!
> Lou Judson
> Intuitive Audio
> On Sep 28, 2018, at 9:03 AM, 6295LARGE <[log in to unmask]> wrote:
>> Hello everybody.
>> I have a TEAC A-2340 which has a noise that my repair guy cannot fix.
>> been in the business for some 35 year, but cannot trace this noise to its
>> source. He said it might be the board which no one can fix or replace.
>> Does that make sense? Can anyone suggest a solution?
>> Ben Roth
>> P.S. PLEASE RESPOND TO [log in to unmask]