Quoted from pinheadpierre:Joined the family yesterday and am trying to sort out an issue I inherited. The game came with a Pinsound board (v1.4). The cabinet speaker does not work. The volume control on the pinsound board labeled cab controls the b.box (head) speakers. The pinsound b.box volume control does nothing. There is a plain black wire with a molex terminal but no housing stuffed into onto a pin on the j505 WPC-89 jack in the pinsound board.
There’s also a volume control knob mounted in the head that seems oddly redundant since it looks like the pinsound board controls volume separately for cab and head.
I traced the plain black wire improperly hacked/stuffed onto the pinsound board. It goes to the cabinet speaker.
Anybody know how this is supposed to be set up? I’m guessing that the janky hacked black wire needs to go into the open spot on the connector next to it. I’m suspicious of the rest of the installation, though as this alone would not seem like it would enable cab/b.box separation at the pinsound controls. Or would it? I’m also thinking that I can bypass the big volume control knob in the head?
Thought I would ask here before physically experimenting.
Anybody know how this is supposed to be connected and operate?
Welcome aboard!
The "Audio Level" volume knob shown in your last picture is the dedicated volume control for the Flipper Fidelity speaker set that's installed. Flipper Fidelity sells 2 speaker sets for TAF - 1 for Pinsound boards, and 1 for non-Pinsound boards. The volume knob only comes with the non-Pinsound speaker set. So my guess is the previous owner purchased the speaker set and installed it, and then at some later point in time they replaced the audio board with the Pinsound.
The speaker set for Pinsound boards comes with a 2.1 stereo harness cable that plugs into the "Stereo 2.1 speaker" connector on the Pinsound board that's directly above the WPC89 J505 and J504 connectors. Since they didn't have one, they kept the wiring the same, which keeps it in mono, and I'm also guessing it's bypassing many (all?) of the controls of the Pinsound.
First thing I notice is that you have a single bare wire connected to Pin 2 (or so it looks) on J505 of the Pinsound. I think both Pin 1 and Pin 2 might be ground, but I know mine is connected to Pin 1 (farthest left pin) on that same connector. You could try moving that over and see if it helps, and if so, you should terminate that to a proper connector. However, even if this does help, this will still lock you into a mono output when the Pinsound can do stereo.
For the proper solution, I'd suggest you give Flipper Fidelity a call and see if they can quote you for just that 2.1 wiring harness that would come with the TAF speaker set for Pinsound boards. It's not listed on their website separately. However, I've ordered from them in the past and they're very accommodating. I recently went from a Pinsound board to the original audio board in my TAF, and he sold me a custom conversion kit to convert my speaker set for Pinsound boards to the speaker set for non-Pinsound boards (required a different sub and the volume knob in your picture). You'd have to run this cable through your cabinet to all the speakers, but doing so will give you stereo output, all the volume knobs on your Pinsound will work as designed, and the J505 and J504 connectors become unnecessary.