Help! Why does my Sony cut-out when i turn up the volume? and why does it get so damn hot!

I've just replaced my older Sony head-unit because every time i turned the
volume up beyond 50% the sound cut out (even though everything else seemed
to continue functioning - the display continues to count the track / time
etc.) - the only remedy was to power off and back on again. I figured it was
just getting old, so ripped it out and got a new one.

Unforunately the new head-unit (4X50W) seems to be suffering from the same
problem - it plays ok for about 5 mins and will go very loud, then, once
it's warmed up to it's normal operating temp (which seems to be a similar
temperature to the surface of the sun! so hot in fact that you can't touch
the heat sink without being badly burned - is this normal?), the cutting-out
starts again, but at a much lower volume than the older unit. again, the
display continues to display that nothing is wrong, and contunues counting
as normal, there is simply is no sound.

I tried increasing the thickness and the source of the +positive feed wire
(thinking it wasn't getting enough current), but with no success.

any further suggestions greatfully appreciated.

Rick wrote:
> I've just replaced my older Sony head-unit because every time i
> turned the volume up beyond 50% the sound cut out (even though
> everything else seemed to continue functioning - the display
> continues to count the track / time etc.) - the only remedy was to
> power off and back on again. I figured it was just getting old, so
> ripped it out and got a new one.
>
> Unforunately the new head-unit (4X50W) seems to be suffering from the
> same problem - it plays ok for about 5 mins and will go very loud,
> then, once it's warmed up to it's normal operating temp (which seems
> to be a similar temperature to the surface of the sun! so hot in fact
> that you can't touch the heat sink without being badly burned - is
> this normal?), the cutting-out starts again, but at a much lower
> volume than the older unit. again, the display continues to display
> that nothing is wrong, and contunues counting as normal, there is
> simply is no sound.
>
> I tried increasing the thickness and the source of the +positive feed
> wire (thinking it wasn't getting enough current), but with no success.
>
> any further suggestions greatfully appreciated.

I suspect you have a short on one of the speaker cables.
Check them all carefully , with a multimeter if possible
--
Alex
SRX 400

"I laugh in the face of danger"

"Then I hide until it goes away"

www.drzoidberg.co.uk

"Dr Zoidberg" <AlexNOOOOOOO!!!!!@drzoidberg.co.uk> wrote in message
news:bo2dma$16vpb7$1@ID-46820.news.uni-berlin.de...
> Rick wrote:
> > I've just replaced my older Sony head-unit because every time i
> > turned the volume up beyond 50% the sound cut out (even though
> > everything else seemed to continue functioning - the display
> > continues to count the track / time etc.) - the only remedy was to
> > power off and back on again. I figured it was just getting old, so
> > ripped it out and got a new one.
> >
> > Unforunately the new head-unit (4X50W) seems to be suffering from the
> > same problem - it plays ok for about 5 mins and will go very loud,
> > then, once it's warmed up to it's normal operating temp (which seems
> > to be a similar temperature to the surface of the sun! so hot in fact
> > that you can't touch the heat sink without being badly burned - is
> > this normal?), the cutting-out starts again, but at a much lower
> > volume than the older unit. again, the display continues to display
> > that nothing is wrong, and contunues counting as normal, there is
> > simply is no sound.
> >
> > I tried increasing the thickness and the source of the +positive feed
> > wire (thinking it wasn't getting enough current), but with no success.
> >
> > any further suggestions greatfully appreciated.
>
> I suspect you have a short on one of the speaker cables.
> Check them all carefully , with a multimeter if possible
>
Or your presenting it with a less than 4 ohm speaker load. What speaker
configuration have you got??

Tim..

> Or your presenting it with a less than 4 ohm speaker load. What speaker
> configuration have you got??
>
> Tim..
>

Not sure of the exact models but they are Sony's all-round - 2 whopping
great big 3-ways at the back, and 2 smaller singles at the front. all
purchased within the past year from halfords. i couldn't tell you what ohms
they are rated at - but i figured they are all pretty-much standard these
days.
Rick

"Tim.." <the.dotfarm@btinternetdot.com> wrote in message
news:bo34r3$8lk$1@sparta.btinternet.com...
>
> "Dr Zoidberg" <AlexNOOOOOOO!!!!!@drzoidberg.co.uk> wrote in message
> news:bo2dma$16vpb7$1@ID-46820.news.uni-berlin.de...
> > Rick wrote:
> > > I've just replaced my older Sony head-unit because every time i
> > > turned the volume up beyond 50% the sound cut out (even though
> > > everything else seemed to continue functioning - the display
> > > continues to count the track / time etc.) - the only remedy was to
> > > power off and back on again. I figured it was just getting old, so
> > > ripped it out and got a new one.
> > >
> > > Unforunately the new head-unit (4X50W) seems to be suffering from the
> > > same problem - it plays ok for about 5 mins and will go very loud,
> > > then, once it's warmed up to it's normal operating temp (which seems
> > > to be a similar temperature to the surface of the sun! so hot in fact
> > > that you can't touch the heat sink without being badly burned - is
> > > this normal?), the cutting-out starts again, but at a much lower
> > > volume than the older unit. again, the display continues to display
> > > that nothing is wrong, and contunues counting as normal, there is
> > > simply is no sound.

I had the same problem with my alpine h/u,,, try using a thicker ground
cable as well..

DB