[mythtv-users] replaceing a Hauppage 150 with a pvr 500

[Marius Schrecker]

> On Saturday 07 Jan 2006 15:25, Chris wrote:
>
> Thanks Chris.
>
> RMA ready and waiting......
>
> Steve
>
>> > When I did
>> >
>> > ivtv-tune -f759.25 -d/dev/video0
>> > All I got was this.
>> >
>> > /dev/video0: 759.250 MHz
>> >
>> > But when I tried the other device.
>> > ivtv-tune -f759.25 -d/dev/video1
>> >
>> > I got,
>> >
>> > /dev/video1: 759.250 MHz  (Signal Detected)
>>
>> I had the same problem as you
>>
>> my card was broken, i got a new card and everything worked.
>>
>> from the few channels i did got a signal the quality was _bad_
>>
>> good tuner:
>> http://www.siggynet.org/video2-net5.png
>>
>> bad tuner:
>> http://www.siggynet.org/video1-net5.png
>>
>>
>> good luch
>>
>> Chris
>>
>> > (Just in case you or other don't know, there's only one antenna socket
>> > for the board that supplies signal to each TV tuner...)
>> >
>> > I am wondering if this indicates that there is a hardware fault and
>> it's
>> > one of a batch that someother poster talked about on the list...
>> >
>> > Regards
>> >
>> > Steve
>> > _______________________________________________
>> > mythtv-users mailing list
>> > mythtv-users at mythtv.org
>> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
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There have been so many posts about bad quality on the PVR-500 recently,
and mine isn't great either, although the difference between tuners is
nothing like as bad as the examples posted.

Also, to confuse matters, I've noticed quality differences between
different firmware and ivtv driver versions. Way back last summer, when I
was wondering whether to go for a 500 or a 350, I posted to the list and
someone replied that the picture quality from the 500 was (if anything)
better than the 350. This certainly doesn't szeem to be the current
consensus.

A couple of questions:

On a "good" card, should there be any noticable difference in picture
quality between tuners?

Has anyone identified a batch/production run number for the "bad" cards?

Is there any output I can use to ascertain signal strength for any given
tuned channel? I'm still VERY disappointed at the signal quality being so
very much worse from the 150 than directly to my cheap Viewpia lcd TV,
this is true even if I degrade the signal to the TV by running it through
a splitter which I remove when viewing through the 500.

The only sure-fire way I can think of finding out what's going on is to
take the whole setup to a TV repair workshop and feed it with a signal of
known strength.

Any ideas/views, before I throw away the 500 as being completely unusable?

Marius