Pioneer GM-3000 Wiring

[Escy]

I've got an old Pioneer GM-3000 amp, it looks like it's built in the 80's. It's a 2/3/4 channel amp, it has a weird style din plug on it (it's actually got 2 of these din plugs). I'm wondering if anyone knows the connections on it or if there are any wiring diagrams?

I can add pictures if need be.

Cheers, Tom.

[Perry Babin]

This is from the service manual of a GM-2000.

[Escy]

I've seen this before but I can't really work out what pin each of my wires goes to.

I have the obvious R and L channel, I then have a blue wire, a yellow wire and a black wire. The blue wire is thicker than the black and yellow. I can't work out exactly where the wires connect on the plug.

I have 2 of these 8-pin dins on my amp.

[Perry Babin]

Pin 3 is the shield ground for the signal input. The left and right signal pins are labeled. The black wire isn't needed.

Does your amp have the 4 pin harness that plugs into the amp?

Is the suffix for the model number (on the bottom label) EW?

[zeonrider]

Mr.Perry
Question :

1- for what purpose is pin 1 btb
2-same pin 7 illum. as I, know power amps. don't have any lights.

Regards zeoN_Rider

[Perry Babin]

At one time, pioneer had a single din connection for the head unit. This is a holdover from those head units. It's no longer used.

The BTB is a remote turn on. If the amp has the 3/4 pin plug, the remote turn-on connection can be made there.

[zeonrider]

Thanks Mr.Babin

Regards zeoN_Rider

[Escy]

Originally posted by Perry Babin
Pin 3 is the shield ground for the signal input. The left and right signal pins are labeled. The black wire isn't needed.

Does your amp have the 4 pin harness that plugs into the amp?

Is the suffix for the model number (on the bottom label) EW?

I do have the 4 pin harness that plugs into it. That only has 2 wire in the plug though, yellow and red. It does say EW on the bottom of it. What are the wires for on this plug?

[Perry Babin]

Looking at the manual for the GM-2000...

It appears that the EW version requires that you use the remote turn-on in the DIN plug. The connection for the acc (ignition - red wire) can be made in the 4 pin plug or in the DIN plug.

The yellow wire in the 4 pin plug is for illumination. You won't use it.

[Escy]

I think the thicker blue wire is pin 3 which would make it the sheild ground? Would that make sense? Can I just loop that into the main ground connection on the amp?

And i'd wire the remote lead onto the red wire in the 4 pin plug?

Thanks for your help.