Re: Home audio amplifier failure


"Mark D. Zacharias" <spammenot@xxxxxxxxxxxx> wrote in message
news:SQhCe.528$Q7.309@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> "Gary Walker" <twf@xxxxxxxxxx> wrote in message
> news:4weCe.482$zh7.53@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> > "Mark D. Zacharias" <spammenot@xxxxxxxxxxxx> wrote in message
> > news:AleCe.506$Q7.333@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >>
> >> >However, I can crank
> >> up the volume to full, and faintly hear the audio>
> >>
> >>
> >> Sounds like maybe the tape monitor is engaged. Maybe nothing wrong
worth
> > the
> >> amp. Even if the amp does have a problem, the A-RV401 is a nice model,
> > worth
> >> repair.
> >>
> >> Mark Z.
> >>
> >>
> >
> >
> > I understand your comment, but although I have engaged
> > all the input sources at one time or another, the faint audio
> > can be detected as from the source intended.
> >
> > Yes. it has been a great unit. It was suggested earlier that
> > repair might be worth looking into, which I will. I'd hate
> > to just throw the whole thing away due to something small.
> >
> > Thanks,
> >
> > Gary
> >
> >
>
> Then perhaps a failure of the regulated power supply area. You'd hear
> nothing at all if the main amp was blown or if there were a large DC
offset.
> Could be one or more open resistors feeding voltage regulator(s) in the
> power supply. Fairly common problem on similar model Onkyo receivers,
though
> I've only worked on one or two amps like yours, and it's been a while.
>
> Mark Z.
>
> Mark Z.
>
>


Well, as I said, I don't really know. I can say that this amp
never runs about 30% volume, I just use it mostly for
headphone listening. If I juice up the volume to 100%, I'll
hear the audio at about the depth I might expect at 1-5%.

"The amplifier's just ain't amplifying". <g>

I still haven't decided, intending on contact of an amp
repair friend. But, I have found another equivalent
replacement Onkyo for ~$300 at Fry's. It's a TX-8511.

Thanks,

Gary


.

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