Have a perplexing problem here. Bought some 5mm eyes from AcidRain mid-last year to put in my bko masters with QDs and drilled the bodies myself.
Well, i'm just now installing them to no avail. Once the PDS switch is hit on one my old Bushmaster harness, the noid is not activated, but i cannot block it to activate....NADA. My bkomaster with pred-lite board and clammy frame harness is acting the same way. It came pre-PDS, so the eyes are the problem.
I have not wired the emitter incorrectly from what i can tell. The emitter anode is the non-tab side and that is where i have the + voltage going in. When the circuit is activated, the volatge falls to a little over 1 volt, so the LED is doing something.
As for the phototransistor, i cannot tell from the schematic which way the current should flow, but with the emitter wired as above, i tried flipping polarity to no avail. I have measure 4.98V across it as it currently is, which is what is listed on the Vec voltage, but 4.98V is the voltage put out from the board anyhow.
I have checked all the wiring and solder connections i have made and the continuity is fine. No problems with the solder/shrink wrapping.
The emitter and collector are similar, if not exactly the same as those listed in the harness thread.
512-QSD722 - 5mm Transceiver
512-QED522 - 5mm Emitter
Now, the real kick in the pants is i have two sets of 3mm eyes, and i have jumped them into both harnesses removing the 5mm eyes, and VIOLA, the 3mm eyes work no problem.
I'm starting to grow impatient. I would stick with the 3mm eyes, but i've drilled both bodies for ACIDRAIN eye covers and they are 5mm holders. I would need to rig a better holder so they don't vibrate or go out of the FOV (although 20 deg is huge).
I can add pics if needed, but i'm not sure how well they would turn out since i don't have a macro lens.
*EDIT* 4 hrs later
Well, I switched out both harnesses from the 5mm eyes and added 3mm eyes. All is functioning properly.
I've never run across a problem like this. Could both set of eyes be bad? I think the 5mm emitters were good considering the ~1v across the emitter. Now the junction type receiver, i have no clue.
Now i need to find something to fill the 5mm hole and hold the 3mm eyes. I wonder if a 3mm LED holder is 5mm outside diameter.
I fixed more than a few harnesses, this is the wierdest thing i've ever come across.