[mythtv-users] Is it possible to change channels on STB using USB?

JWA jwa at macbidouille.com
Fri Jul 30 04:09:38 UTC 2010

On Thu, Jul 29, 2010 at 20:17, William Powers <wepprop at gmail.com> wrote:
> On Wed, Jul 28, 2010 at 10:16 PM, Gabe Rubin <gaberubin at gmail.com> wrote:
>> I posted elsewhere about the sudden flakiness of my STB.  I am still
>> able to capture recordings via firewire, but I can't change the
>> channel.  When I try to do so, a little icon comes on the STB denoting
>> that it is receiving a signal from my remote, but there is no channel
>> change.  Aside from using an IR blaster, is there any other option I
>> have to change the channel?  I see that my stb (Pace TDC779X) has USB
>> ports and an IR Receive jack (which the manual says can be used to
>> connect an optional remote "eye").  Would either of these be useful?
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> You should be able to rig up a completely reliable direct channel
> changing setup using some kind of IR blaster such as an IguanaIR or
> equivalent but, instead of using IR emitters, instead use
> optoisolators to couple an IR blaster output with a remote IR receiver
> jack on an STB.  See the following thread, as well as other links
> contained therein, or Google for something like "Optoisolator IR
> blaster cable"
> http://www.tivocommunity.com/tivo-vb/showthread.php?t=430994

Thanks for that link.  I was wondering if I would be possible to have
a direct cable from an IR blaster to my DCX3200 (which has an IR
input) rather than needing a box with firewire and that answered it.

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