[mythtv-users] Myth w/Directv

[Jason Donahue]

Correction:
My Sony receiver uses a plain old 9 pin serial port for the data port.
You are looking for a port that says "Low speed Data Port". If it's not
there, then you need the ir blaster.

And to answer Tom's question: Think of it like this, the frontend is
used to WATCH the signal, the backend CAPTURES it. So, if you are
running the frontend and backend on separate boxes, the backend gets the
capture card, and the serial cable that both hook up to the receiver.
Then the frontend gets the TV out, and hooks to the TV.

On Sun, 2004-04-11 at 19:48, William wrote:
> > This is the part I'm stuck on understanding. I have to run a 
> > serial line back to the receiver to change channels on the 
> > receiver? Or am I running the serial line from the frontend 
> > to the receiver, and the frontend is where the irblaster is as well?
> > 
> > See, this is why I was looking for a howto or faq, because I 
> > am talking myself into a confused state.
> 
> Ok, here is a bit more detailed instruction. Take a look at the back of your
> directv receiver and look to see if there are one or two places that look
> like spots where you can plug the phone line. One will be narrower than the
> other. If there are two, you have a receiver that can be control by a serial
> connection. If only one then your only choice is to control it by a i/r
> (infra-red) transmitter. This is similar to the way you would normally
> control it with the remote.
> 
> If you have two, you will need to purchase or make a special serial cable
> and run any of several channel change scripts on your myth box. 
> 
> If only one, you will need to make or purchase a i/r blaster and will need
> to set up lirc to control the blaster. This is quite a bit more difficult
> than the 2 connector option but it can be done. A search of the archives of
> this list will provide you with a huge amount of material about both types
> of setup.
> 
> If you only have one and lirc seems to be a bit more than you can manage,
> there are alternatives but they will require you to purchase some relatively
> cheap commercial hardware. Let me know if you want more info on that option.
> 
> Hopefully this has cleared up some of your confusion.
> 
> Bill
> 
> PS - I run 2 directv receivers in my setup, one is serial controlled and the
> other by a ir blaster so I have had to figure both types out.
> 
> 
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