RE: mulit zone ir testing update(long post)

["Brian Reynolds" <brian.g.reynolds@xxxxxxx>]

I must say I admire yourself and Ian B. for your work on this, one day
when I eventually finish the loft conversion I might have a go at this
but then again I might not as it is way over my head.

Why is it with our types we have soooo many jobs on the go at any time?
I have just booked some time off from work at the end of this month to
try and catch up, first time off this year! God I need to get a
life....

Keep up the good work,

B.

-----Original Message-----
From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
Sent: 07 July 2002 13:08
To: ukha_d@xxxxxxx
Subject: [ukha_d] mulit zone ir testing update(long post)

Hi All
        Today i started to do some real
life testing of the multizone ir
unit.
As some of you would know things working on a bench and things working
in the real world can (and usually are ) be two different stories.
Firstly the bad news , My idea of a Ir Blocker (stick on emitter) no
good. Im glad i didnt call it stick on cause it didnt so will have to
revisit that one....Anybody tried this ?,maybe look at Keiths again.
  When i got the multzone rx unit working i was using my panasonic
dvd
as a testbed and was tx/rx vol up ,vol down  + mute commands
,worked
fine. So i saved all buttons  that i thought i would use. Guess
which
ones didnt work ...vol up and down. When i pressed these two the dvd
would power down . Tried relearning no good . Relearned the power on
...that fixed it (thank god). Ieventually got the vol up and down to
work by resetting the tolerence setting which i fiddled with at some
stage ( left it on 8).


    Next  one to get me was , i decided to transmit
commands via the ir
test menu in homevision . When it transmitted i noticed the ir rx
active
led (yellow) pulsed with the tx data . My initial thoughts were that
there was some bleed from the ir blocker (emitter) and moved the zone
rx
unit to top of the tv. Still same problem . Disconnected the ir blocker
and transmitted , all ok ,inserted a dummy jack (normal led) into zone
splitter and transmiited again. Problem back again .
    The Tx signal is getting induced into the Rx unit but at
this stage
only effecting the ir _active  circuit .This VALIDATES what KEN
WATTS
has been saying recently about ir rx signals in with other transmitting
type signals. I will keep an eye on this one and if necessary run my tx
signals via speaker cable.

Now some good news 
At this stage  i have only 1 zone connected and working and seeing
my
little shack is small i have the signals tx and rx going thru an almost
full drum of cat 5 (approx 200metres +) and im operating my dvd player
listening to my favorite band ROXY MUSIC no problem (okay so im an old
fogie) . I will get my circuit by my friend John to have a look at my
designs ,as i would like to ensure that long runs dont effect the
signals and hes got heaps of experience with comms and that. Unitl then
testing and more testing.
Sorry for the long post..... 

Frank Mc 


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