roads9988 wrote: ↑Fri Jun 28, 2024 3:56 pm
as of now, completely no signal when plug in. Will be back with an update
Have a fun surgery!
In the last photo you attached, a black wire connected to the magnetic tone pot appears to be broken. However, I can't tell if it's a trick of the angle, or not.
For the sake of anyone else who finds this thread:
The magnetic pickup circuit signal path outputted by the middle lug of the volume pot inputs into the NiteMix preamp in series (meaning the preamp determines whether the signal is passed on to the output jack, or not). If
-there's continuity measured between the jack's tip and shield lugs and the tip and shield at the other end of an inserted guitar cable, and
-a fresh 9v battery seems to be supplying power to the preamp (i.e., the red battery positive wire is connected to it, and the black battery negative wire has continuity to the shield portion of a 1/4" T/S or T/R/S plug when inserted into the jack),
and you're still not getting signal after trying the stereo/mono switch, bypassing the preamp by connecting the output of the middle lug of the volume pot directly to the tip lug of the output jack will either output a passive magnetic pickup signal (indicating a fault with the preamp), or indicate a faulty component further up in the magnetic pickup signal path.
If the NiteMix preamp itself is found to be faulty, there are no exact drop-in replacement preamps available; due to the preamp having been replaced by the Fishman Powerchip (which is still produced, and can be retrofitted). Because the push-button stereo/mono switching was abandoned for "smart-switching" piezo preamps beginning in the '00s, a NiteFly NFV3 or 4 retrofitted with a more modern preamp will lose the functionality of that switch; resulting in an unused hole in the pickguard where the switch/preamp assembly was previously mounted. This can be replaced with a similar pushbutton for an additional switching function, or the pickguard can be replaced.