[mythtv-users] HD-PVR IR Blaster Guide

John Welch jrw3319 at gmail.com
Wed Dec 30 21:46:23 UTC 2009


On Wed, Dec 30, 2009 at 12:54 PM, Jeff <junk_inbox at verizon.net> wrote:
> On Wed, Dec 30, 2009 at 12:22 PM, steve <networks1 at cox.net> wrote:
>>
>> >the "send_power_new" script I see the emitter (red light) blink each
>>
>> >time a code is sent.  Sometimes the blinking looks a little different,
>>
>> If you can see it, you’re not seeing the IR emitter. They must have a
>> visible light led in there too, unless there is a type of LED that emits
>> both at the same time.   If I were you I would check the business end of the
>> emitter per earlier suggestion.
>
> Nearly everyone has a cell phone with a camera nowadays -- put your cell
> phone in 'photo' mode and look at the IR emitter with it.  You should see a
> WHITE light emit from the IR section as seen with the camera's viewfinder.
>  Test it with a 'regular' remote control to see what to look for, then test
> your IR blaster.
> And if your IR emitter looks like
> this: http://www.avocent.ca/img/product_images/avocent-irb-100-lg.jpg
> ...then I've found the IR to be emitted out the 'fatter' end of the emitter,
> and in one case it was so weak that I had to tape a small piece of paper at
> a 45 degree angle on the end to reflect the IR signal into the receiver.
>  (Something like this:   /===   - Where the / represents the paper
> reflector, and === represents the emitter - sorry about the ASCII art...)

I got it!  It was definitely just a matter of locating the IR receiver
on the STB and putting the emitter directly over it.

Thanks to everyone for the help and Happy New Year to all.

John


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