[mythtv-users] comcast dta remedial help

[William Powers]

Oh, looking ahead, if your DTA has a jack for a remote IR receiver,
it's possible to connect your IR blaster output to the DTA IR receiver
using an optoisolator or something similar in between as a buffer.
See this thread for a discussion of using optoisolators:

http://forums.tivo.com/pe/action/forums/displaythread?postID=10435840&ie=x#e10435840

or this thread for a discussion of using a MOSFET transistor:

http://www.tivocommunity.com/tivo-vb/showthread.php?t=430994

The latter has a link to a circuit diagram detailed in the thread:

http://grayeng.net/TiVotoComcast.htm

You might have to check to see if the latter circuit works with your
device.  The optoisolator circuit should work with an device, I should
think.