I messaged Lexel about that and he gave me the advice of cleaning the driver. Sadly that didn't work.
What's pretty clear is, that there is some leakage current somewhere in the path. And considering how the LED is connected, it needs to be somewhere in the negative path as the positive is directly connected.
Furthermore, I tried running the driver outside the host with the LED still connected to rule out any leakage current through the MCPCB or the host itself.
In that case, the LED still has a dim glow, so I would rule out the MCPCB and Host.
So now, on the driver, the following things are connected to LED-:
MOSFET
Bank of 7135 chips on the bottom
Single 7135 chip on the top
(The driver PCB itself)
The MOSFET should be a BSC009NE2LS5I which has a diagram for drain-source leakage current in it.
In the diagram, I see that a Vds between 3..4V at room temperature would yield around 30µA of current (If I'm not mistaken)
That's not much, but maybe that's enough for the LED to light up.
Maybe if I have too much time, I will desolder the FET and see if the AMC7135s also have a leakage current.
Another option would be someone with a low value current source who could test at which level the LH351D start a dim glow.
Oh good, same haha, I worried I screwed something up (which I suppose could still be).
I don't think it's so bad aesthetically. I almost like it, if it's not draining my battery more than any other emitter would. More on that below.
And functionally not terrible, especially if the emitter is just capable of turning on at extremely low currents, right? Because that would mean it's not using more current than a different emitter would be, it just so happens to be lighting up with that current. I suppose that would need to be tested.
Anywho, to see if it's the fet or the AMCs, couldn't we just desolder the components off of each channel, or even the lower AMC bank one at a time and see if that changes things? Not the most scientific, but just maybe haha.
Quick update, I got my hands on one of the lights I modded with the prebuilt driver you sent me Lexel, and I swapped an LH351D into it, and it still does the faint glow. Does it in the light, and set up by itself. So I think we’ve ruled out user error? Very odd.
Hope I don’t come off as upset, or demanding answers. It’s just a curious thing. I haven’t measured the standby current, but I’m not too worried about it.
I think I let speak pictures a bit, unfortunately only my phone camera I forgot there
bought a new shiney apartment, started to pack a lot stuff to move there fully till 31. Nov,
so thought I got enough time to get a few things done
Looks OK 2 minor things on to do list
maybe someone did a bad move when disconnecting washing or dish machine or so as I discovered water
getting worse
removing the dish machine to get below the kitchen part
You know woods color right?
finally below the dish machine I found black stuff that turned out be have been wood a long time ago
had to remove kitchen for further investigation
As I am not allowed as its house property not my apartment I had today first time a company here to replace the pipe
I finally got the permission to open the wall to get to the pipe before the workers come
Today also more bad news opened the wall next to the pipe and below the plaster was wood plate, looks now more like mold than wood
so bought heavy breathing protection mask for toxic stuff and started to open all up and removing the mold,
a company would charge me way too much likely and would handle it like asbest stuff
the only mobile picture I made today
with good camara I made a lot today but forgot it there
Wow, that is bad. I think over here apartment renters can’t work on things, the building owners have to do all work. At least it does not cost the renter money to fix.
Hard to say pipe fix is definitely house insurance
Water damage on walls maybe
Not sure if the last owners insurance will pay for the floor its obviously an old water damage which leaked over many years a bit and now got worse
The problem was made 1995 when the heating pipes were made new, some idiot drilled through the wall into the pipe and they put some glue stuff on the ceramic pipe instead installing a new segment
Oh god! We bought our more than 50 years old house two years ago and every time we touch something we found that the previous owners wanted to keep every cent they can on any job. I can feel your pain!