[mythtv-users] Which blaster should I use?

Jarod Wilson jarod at wilsonet.com
Sat Jul 17 02:49:47 UTC 2010

On Fri, Jul 16, 2010 at 6:47 PM, Don Brett <dlbrett at zoominternet.net> wrote:
> Jarod Wilson wrote:
>> On Thu, Jul 15, 2010 at 9:52 PM, Don Brett <dlbrett at zoominternet.net>
>> wrote:
>>> Jarod Wilson wrote:
>>>> On Wed, Jul 14, 2010 at 10:32 PM, Don Brett <dlbrett at zoominternet.net>
>>>> wrote:
>>>>> I have a new installation of Mythdora-12, which is working fairly well,
>>>>> but
>>>>> it has three blasters; pvr-150, mce remote receiver-blaster combo, and
>>>>> hd-pvr w/blaster.  Actually, none of them do anything.  I set it up in
>>>>> the
>>>>> Mythdora ir devices section, but I'm not sure I have it right.
>>>>> Remote control - Media center remote 2
>>>>> Override IR - lirc_mceusb2 (MCE-USB Receiver/Blaster)
>>>>> IR blaster - No IR Blaster
>>>>> STB - Pace PSR9000 (the box is actually a DC700X HD, but there's no
>>>>> selection for it)
>>>>> Did I pick these correctly?
>>>> Depends. Did you actually want all three enabled, or just the mceusb
>>>> one? I'd set up just that one if you only need one receiver and one
>>>> transmitter, since it can do everything in a single device for you and
>>>> the driver has no known deficiencies, etc. That what it sounds like
>>>> you've set up, anyway. When you say "none of them do anything", what
>>>> exactly do you mean? And what exactly are you expecting them to do? :)
>>> No, just one blaster, and I agree, the mceusb would be preferred.  I'm a
>>> blaster novice, but I thought that when you changed the channel the
>>> blaster
>>> end (looks like a red LED) would  flicker.  The procedure was:
>>> Select "Watch TV" > let it go to Live and tune a channel > aim the remote
>>> at
>>> the receiver and press a number (I used #2) > press OK > watch for led
>>> flicker > then repeat using a digital camera.  Nothing flickered on any
>>> of
>>> the three...is it normally visible?
>> Most of the ones I've got are visible, but some aren't.
>>> All three blasters are connected and easily in sight, but none are
>>> actually
>>> attached to the STB receiver.  Where did I go wrong?
>> Did you set up a channel change script and wire it up in mythtv-setup?
> I don't think so; I selected a Pace STB in IR Devices section, but I'm
> guessing that doesn't give me a script.

There's a script on the system somewhere, but it requires adjustments
for your specific setup, and has to be specified in mythtv-setup. See


> I put /bin/true into the script
> field of the setup menu.

Then there's nothing anywhere telling the IR blasters to transmit
data, thus no activity being seen from them.

> Anything else I tried just exited back to the menu
> when I tried "Live Tv".
> So....where would I find a proper script for a "Pace DC700X HD", or, is that
> something I have to write myself?

The link provided above should work with a bit of adjustment. The
'gi-motorola-dct2000' part should be replaced with whatever the remote
config profile name in /etc/lirc/lircd.conf for your pace set top box

>>> PS - I'm trying to make this work with the HdPvr, can I still use the
>>> pvr-150 as a second tuner?  When I change channels on one, will it switch
>>> the other?
>> If both are recording from cable boxes, you need two transmitters.
>> They can be controlled independently.
> Only one cable box; so the mceusb will change the channel of the active
> tuner and leave the other one alone?
> Example:watching live tv with HdPvr, recording a show with pvr-150, switch
> channel on live tv....pvr-150 is unaffected?

What is the pvr-150 recording from? Analog frequencies, fed straight
into the card over coax? If so, then yes, its entirely separate from
the hdpvr + ir blaster setup.

Jarod Wilson
jarod at wilsonet.com

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