"Mark Zenier" wrote in message
...
In article ,
Clive wrote:
Hi all
I have a Sony sw-77 and it appears to be acting up.
It seems to have a problem in the power dept, now I'm not sure if it's
because of the batteries, as I have cheap things in it at the moment, but
its still the same with the ac power supply fitted, it sort of crackles
and
goes quiet for a few seconds, then sometimes it sounds as if it drifts off
frequency, but then it comes back again, it is an intermittant problem,
but
very annoying, any ideas anyone please
I've had problems with the coaxial(barrel connector) power jack on
various equipment. The connections to the circuit board go open because
it gets stressed a lot with the plug and cord getting moved or bumped
and the only thing holding it in place is solder. And in some stuff,
there's a switch to disconnect the battery built into the power jack so
that supply goes through that same problematic part.
Wiggle it and see...
Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)
Hi Mark
Yes,I see your point, it does crackle a bit when I move it around.
I think it could be a problem with the voltage stabilizer, as it sort of
goes haywire from time to time, getting the same symptoms you get when
batteries are running low, also it goes ballistic when you push the light
button.
Further investigation I think is needed
thanks
Clive