Re: ir rx tip

["Frank Mc Alinden" <fmcalind@xxxxxxx>]

LOL
God dont you hate that.....!!!  Spend hours looking for a fault thats not
really a fault....
Who said electronics was fun.......errr i think i did ;-))

Frank
----- Original Message -----
From: Keith Doxey
To: ukha_d@xxxxxxx
Sent: Friday, April 25, 2003 6:19 PM
Subject: Re: [ukha_d] ir rx tip


Hi Frank,

I havent had any problems with the Power Supply causing glitches on my
receivers but I did have spurious flashes being picked up sometimes. Tried
different receivers and it still happened.

Finally found the cause.... My LAPTOP !!!!

It was sitting across the other side of the room and its IRDA port was
polling
for devices to talk to. Hibernated the laptop... spurious pulses stopped,
woke
it up.. pulses started again. I wasnt going mad after all !!!!!

--
Keith

www.diyha.co.uk
www.kat5.tv


Quoting Frank Mc Alinden <fmcalind@xxxxxxx>:

> Hi All
>         Just a little tip for those who are making their own ir
receivers and
> may at some stage have the following problem.. I have been building
some FirM
> Rx Units and noticed while testing that with some the Busy output was
> flashing briefly and quite often as  if ir was being received...First
covered
> the ir reciever to block any stray ir but no good...replaced the ir
receiver
> still no good replaced all caps and ic ........and was ready to take
all my
> ir receivers back to my supplier to say they were faulty and thought i
would
> try the little 5v 100mA regulator and bingo the fault cleared replace
the
> regulator on another board and the fault also cleared...Im not sure
why the
> glitches were getting on the rx line unless maybe  noise..........so
watch
> those pesky little regulators ..........
>
> Frank Mc
>
> [Non-text portions of this message have been removed]
>
>
>
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