Re: Re: C-64 with no 9v possible failures?
By: Clocky to Keith Matthews on Wed Nov 04 2015 17:39:04
Hi Clocky
> On 4/11/2015 8:08 AM, Keith Matthews wrote:
> > Hi All,
> >
> > I have a breadbox style C-64 that has stopped working.
> > I connected my 1501 Power Monitor to the Power Supply and it
> > seems fine for both 5v and 9v (well it shows 10v)
> >
> > The Power Supply work fine with my C64C machine.
> >
> > I connect the 1501 Power Monitor to the User Port and I
> > only get the 5v indication
> >
> > There does not seem to be 9v at the user port.
> > I have pressed in all the chips and checked the internal fuse on the C-64.
> >
> > Just wondering if any of you great CBM guru's might know of the top of you
> > head
> > what component (I'm guessing a capacitor?) might be failing?
> >
> > Also there is no display when powered on. The C-64 Power LED comes on as
> > Normal.
> >
> > Thx for any advice 8-)
> >
>
> Do you know the history of the C64 because the C64 that was sold by Aldi
> (but not only Aldi) is known to have the 9VAC missing at the user port.
>
Oh Wow really,
I just assumed they were all the same. It is a Breakbox (older) model so I
would have expected it to be
Pre Aldi. 8-)
I know the unit used to work, although I could only get B & W out of it.
Prehaps it
is an NTSC version?
There is no screen now though, so something inside has died.
I wonder where else on the main board I could safely check for 9V?
Thanks.
--------------------------------------
Regards........Geo
oooOOOooo
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