[mythtv-users] MCEUSB IR receiver flashes along with HDD activity

[Jarod Wilson]

On Apr 1, 2011, at 11:09 AM, Paul Gardiner wrote:

> On 01/04/2011 14:16, James Oltman wrote:
>> On Fri, Apr 1, 2011 at 6:34 AM, Mark Lord <mythtv at rtr.ca
>> <mailto:mythtv at rtr.ca>> wrote:
>> 
>>    On 11-04-01 03:28 AM, Ian Evans wrote:
>>> I have an IR receiver that came with an HA-IR-01SV remote. Seems
>>    to be
>>> working fine so far and I'll have to see if I can get a Harmony 300
>>> working with it.
>>> 
>>> Anyway, I noticed that the red LED in the IR receiver keeps flashing
>>> at different rates. After a few minutes, I realized it was
>>    flashing at
>>> the same time and tempo as the HDD activity LED.
>> 
>>    What happens when you cover the HDD LED completely with black tape
>>    or something,
>>    does the MCEUSB receiver still flash then?
>> 
>> 
>> This would be my guess as well.  It sounds like the LED HDD light is
>> putting out light waves somewhere in the IR spectrum.  I have something
>> similar happen to my MCEUSB receiver.  When it's dark in the room, and
>> the LCD TV first turns on, or shows a black screen, the light on the
>> MCEUSB goes crazy.  I've just learned to live with it, as I don't intend
>> on putting black tape over my TV.  :-)
> 
> My receiver light flashes away as though in sych with an HDD activity
> LED, but I don't have an HDD activity light on my frontend, plus the
> frontend is tucked away behind a cabinet, while the receiver is sitting
> in one of the cabinet shelves. I have no explanation.

Ambient infrared light. Its actually a testament to how capable the mceusb
hardware is at picking up infrared signals.

-- 
Jarod Wilson
jarod at wilsonet.com