[mythtv-users] HD-PVR power supply (wall wart) gone bad

Daryl McDonald darylangela at gmail.com
Mon Dec 3 11:27:28 UTC 2018


On Sun, Dec 2, 2018, 11:06 PM Bob <mythtv at cox.net wrote:

> On 12/1/18 8:33 AM, Allen Edwards wrote:
> > Don't use the +12 line.  It will likely destroy the unit. I am very
> > surprised that the internal +5 supply in a PC ran out of current.  I
> > could understand that if you got the +5 from a USB cable but not from
> > one of the molex cables.  Maybe the wire is too small or you actually
> > hooked up something wrong.  Get a voltmeter and check what is on the
> > wires when you are recording.
> >
> > Allen
> >
> > On Sat, Dec 1, 2018 at 5:27 AM Daryl McDonald <darylangela at gmail.com
> > <mailto:darylangela at gmail.com>> wrote:
> >     More than doubling the voltage is never a good idea, my guess would
> >     be not enough amperage, I couldn't get reliable operation from
> >     internal power supply to a HDHR so I now keep a supply of
> >     replacement walwarts on hand.
>
> Here's a photo of the cable:
>
> https://pasteboard.co/HPXIYlf.jpg
>
> The Molex connector was taken from a Molex-to-floppy drive adapter
> cable. The cable diameters seemed similar in size as the Hauppauge
> cable. I did use the full cable length from the wall wart.
>
> I am going to experiment with using another supply line on the power
> supply. The power supply is only a 500W, hopefully that is not an issue.
>
> Thanks for the feedback/thoughts.
>
> Bob
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Your capture device is at risk, if that "another supply line" is the 12
volt one.

>
>
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