GP40 PCB differences

[PatBarr]

There are three PCB's for the HO GP40.  What are the reasons for this?

PCB (HO GP40)
board #H601x-PCB01
Model: 6031-PCB01 REV-B

PCB (Old Model) (HO GP40)
Model: 63521-PCB01 REV-A

PCB03 (HO GP30/GP35/GP38-2/GP40/GP50/ Universal)
Model: H601X-PCB03

Thanks, Pat

P.S.  I tried to upload pictures but it said the upload area was full.

[bapguy]

I believe the first 2 are for DC only. The third one is for DCC non sound.     Joe

[rich1998]

Welcome

Common knowledge.
You need an image hosting site to upload photos to most forums, not only the Bachmann forums.
Photo Bucket is one of them.

Look down a few forums for instructions. General Questions forum with no explanation.

Bachmann does make changes in their locos.

Rich