GP-Wiz40 MAX "KB" input

[push2reject]

What does the "KB" input do on the GP-Wiz40 MAX?  Just got mine today.  I have not yet hooked it up to a panel.  I didn't find any documentation on the GGG site on the function of this input.  Is it just a hold over from the KeyWiz Max 2.0 which has the same PCB?

[push2reject]

*Bump*

Nobody?  I'm guessing the GP-Wiz is less popular than the Key-Wiz.
(I've sent RandyT a PM and an e-mail as well as making this post)

[RandyT]

Is it just a hold over from the KeyWiz Max 2.0 which has the same PCB?

Yep

[push2reject]

Thanks, I figured as much.  I didn't want to test it by shorting it to ground and blowing the unit.

[dholcombe]

I am somewhat confused by this PCB as well.

The documentation shows X, S!, Gnd as the last 3 pins

The PCB shows X, KB, S!. as the last 3 pins

http://www.groovygamegear.com/PDF/GP40_Eco_ST.pdf

Is the pin labeled KB on the PCB actually S! and the one labeled S! actually another ground as shown in the documentation. Basically I need to know which is actually S! and which is a 2nd Gnd pin.

[RandyT]

Is the pin labeled KB on the PCB actually S! and the one labeled S! actually another ground as shown in the documentation. Basically I need to know which is actually S! and which is a 2nd Gnd pin.

Thanks for pointing that out.  The PCB marking is correct.  The second ground was replaced when the PCB was redesigned to accommodate the KeyWiz MAX 2.0 design.  The second ground was extraneous in the earlier revision, and added only to pad out the terminals to an even number.  You can chain all  of the grounds together and attach them to the single ground connection.

I'll get the PDF updated.