Below is some info that i have gathered from different threads on here. If i am quoting someones post, a "thank you!" goes out to the original author!
WBA-10 and 11: one way bill acceptance, 10 is a the flash version, the 11 is the eprom version.
WBA-12 and 13: 4 way bill acceptance, 12 is the flash version, and the 13 is the eprom version.
The heads for all of the above are interchangeable, like for the 12 and 13, the head are the same. The differences lie in the transport (the part that houses the eprom or flash chip, motors etc.).
Software (Flash or Eprom):
The software that tells the head which bills it will accept is actually in the transport. The software "language" is the ID# (IGT is ID022, ID023, ID024; CDS, WMS, Atronics is ID003; I forget what Bally is, ID004 maybe). So, now, each language has different versions (i.e. v3.60) to accomodate different bills as they were produced. The JCM website has a PDF for each version (by ID#), explaining the differences as to which bills each version will accept. Here is the link to JCM site Software section: http://www.jcmglobal.com/en/support/downloads/SoftwareInfo
The ID is determined by your SP chip. The S+ can only use ID022/23. IDO23 & 24 are IGT only. S2000s, I Games, & Game Kings use a WBA 12/13 with IDO 24.
You can convert a WBA by changing the CPU board and Harnessing. If your harness has 20 pins you need the WBA 12 CPU and harness. If it has 12 pins, you need ID-024 software for your WBA 11. The WBA 10 and 11 use a CPU that takes a 1 meg program. The WBA 12 and 13 use a 4 meg program. other than the CPU board and harness, the rest of the unit is identical.
DBV200 - You can test the DBV-200 in stand alone mode to see if it's operational. Flip on the Dip switch #6 on the second set of switches (6 pack) then power up, then turn Dip 6 off. The BV should cycle and accept bills without the stacker. If you want to test with the stacker, turn on number 1 on the same Dip switch pack and leave it on when you turn number 6 off. That will test the BV with the stacker.
DBV200 should have all switches off (for ID023) on the bottom of the head, with the exception of switch #10 on SW1 (for ID022) Make sure that none of the switches on SW2 are on. (The one with 6 switches.)
And that, is about all the info I have! I hope it helps, even if its just a little bit!