B&O Loudspeaker Switch IR Eye pinout help requested

12 replies
MA
Offline
Madskp
Gold
Posted February 24, 2025 at 18:41 GMT
#1668933
I just did some testing with an MCL IR eye connected to a MCL2AV. WhatI see is a voltage drop from 4.97 V to ~3.68V depending on the command when pressing af key on the remote.

With the Ir disconnected I also measure 4,97V on the data screw terminal the MCL2AV, so must be that voltage the IR eye I trying to pull down.

Measuring on the IR eye without connection to the MCL2AV I see1.57V that is pulled down to ~1.3-1.4V depending on the command when pressing af key on the remote.

Hope this is usefull

 

Location: Denmark

kirin
Offline
kirin
Bronze
Posted February 27, 2025 at 18:10 GMT
#1669019
Hi Madskp,

just to resolve this post by me, thanks for your response, btw! -  I have tested the others;
I admit I forgot to state, that I put 5V as input to the brown (grd) and green (Vdd) cable, so I did not use the MCL2AV or any receiver at all and measured with respect to ground the output data on the white cable;
I got the same result (high:~1.65V, low ~0.1V) , I think it fits to your measurement inside the box.

The good thing is, that it is quite easy to get cheap IR transmitters for any projects in that way - which was clear already in the posts by you :-)

Best, kirin
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