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Now it’s going to be exciting to see if it will also work with the BLC 1615 as that combination could make a ML link room with local datalink inputs
Time to do some testing with some of the new equipment.
BLC1615 (SW 1.5) AAL connected to MCL screw terminal on MCL2AV:
BLC1615 pin 2 – > MCL2AV Brown GND R, Grey GND L, Shield GND
BLC1615 pin 1 – > MCl2AV Yellow L
BLC1615 pin 4 – > MCL2AV Green R
BLC 1615 pin 6 – > MCL2AV White Data
As audiomaster I used BLC1611. MCL2AV in option 1.5
I works. I get sound from ML through BLC1615 to the MCL2AV. It only reacts to audio commands. also tried to change to option 2.5 with no change.
Edit 2023.06.05 Tried the same test with BLC 1615 Sw 1.0 and 1.1, and this also works
Also tried it with a BLC1614 (SW 1.0) while I had it all lined up, and it worked the same as the 1615.
Ok so I did some testing.
The Beolink Passive does not use the “normal” speaker on/off signal on PIN 4 in the 8 Pin DIN connectors, but instead Pin 1 Power up.
I have a fully wired RJ45 to 8 Pin DIN female adapter that I made myself. It is wired as shown on page 104 in the Beolink handbook 1.9:
I tried connecting between my adapter and the BL passive with some different powerlink cables without succes. Then I tried with an 7 Pin audio Aux cable and that did work.
Testing with a multimeter I can see that none of my powerlink cable has connections on Pin 1, but the Audio AUX has that.
So in conclusion a cable wire like the one shown in the picture above should work.
What is… This?
just a ML junction box attached with double sided tape. One of the more simple black boxes ?
This might be getting out of hand…
from left to right 1614, 1615 and 1610 some of them without official labels, and some in different software revisions.I might sell some of them to get a more manageable collection of black boxes
While I had it open i did some probing with a multimeter to find out what the pins on the 8 Pin DIN connector goes to.
The PCB for the plugs are clearly redesigned compared to the MK1. For example PIN 2 is in use on this PCB. I have shown where the pins end up on the PCB in the picture below.
Pin 1 – As far as I can tell it has no connection to anything
Pin 2 – Ground for audio. Called GND REF on the block diagrams in the servicemanual
Pin 3 – Audio left – Called PL in L on the block diagrams in the servicemanual
Pin 4 – Not really sure. I measure 100 Ohms resistance between the numbered soldering point and the pin 3 on the flat cable to the crossfield PCB. It is called SP ON on the block diagrams in the servicemanual. Unfortnuatly I can’t trace it further from the connecter on the crossfiled PCB which looks very much the same as in a MK1 BL3500
Pin 5 – Audio right – Called PL in R on the block diagrams in the servicemanual
Pin 6 – DATA – Called DATA on the block diagrams in the servicemanual
Pin 7 – Ground for data – Called GNDD on the block diagrams in the servicemanual
