[mythtv-users] PVR-150 quality problems

[Jake Maul]

On Sun, Dec 2, 2012 at 10:02 AM, George Mari
<george_mythusers at mari1938.org>wrote:

> On 12/02/2012 02:19 AM, Jake Maul wrote:
>
>> Greetings fair list,
>>
>> I've been trying to track this down for a while now, with no success. My
>> PVR-150 is exhibiting a very annoying display issue. This happens on
>> live TV and recordings, and is unaffected by transcoding. It's in the
>> actual files, so I don't think it's a playback issue... seems more like
>> a tuner problem of some sort. Doesn't seem to matter what channel.
>> Quality is fine when hooked up directly to the TV.
>>
>> http://i.imgur.com/JHuBk.png
>>
>> Any ideas?
>>
>>
> The PVR-150/25/350/500 are of an age where many of them may be suffering
> from leaking capacitors.  I just replaced 2 bad capacitors on my PVR-350 a
> couple of months ago, although the image distortion I was getting was
> different than what you see in the image you provided.
>
> Google 'leaking capacitors' for a description of what to look for.
>

I haven't noticed any leaking or "popped" capacitors, but that's a good
idea... I'll examine the card more closely. Thanks!


> Also, check your cables and connections, if you haven't already.
>

Yep, have re-seated / reconnected things a couple times.


> Another idea - have you placed any new components near your backend
> server, such as a source of radio interference?  Or maybe near the cable
> leading to your PVR-150?
>

Nothing that I'm aware of. The "household geography" is unchanged. It's
consistent and not affected by time of day, which should rule out lots of
sporadic / intermittent potential sources of interference. I can unplug the
backend and go straight to the TV with no issues (same cable), which should
rule out most/all sources of interference outside the backend node itself.
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