Bally 5500 DBV 200 Takes bills, wont give credits

[pinshoppe]

I have checked the dip settings, swapped bill head, transport, mpu, power supply, and backplane at various times with known working ones and still will not give credits when a bill is inserted.  it deposits in the cashbox and cycles normally.  this one is really buggin me.     thanks in advance

[Sunrise Side]

Try a new set of Mains and Personality chips

[edoleu]

Did you check the wiring between the DBV and the backplane? Sounds like there is a disconnection between the two.


Please update on whether or not new chips fix the issue.


I had a vexing problem with my V7200 DBV-145 not working. I swapped out everything and it turned out to be the MPU board. Took me a couple of years and a few hundred bucks in trial-and-error.


Ethan

[pinshoppe]

thanks for the replies, i dont think new mains will remedy because i swapped mpu with different mains and problem remained.  ill go through the wiring to the backplane and keep you poseted, thank you

[edoleu]

It kinda sounds like the bill validator is just not able to communicate with the slot in order to add the credits.


An oscilloscope would be a handy diagnostic tool in this instance in order to verify that the signals are being sent from the bill validator.

[Badbaud]

I have checked the dip settings, swapped bill head, transport, mpu, power supply, and backplane at various times with known working ones and still will not give credits when a bill is inserted.  it deposits in the cashbox and cycles normally.  this one is really buggin me.     thanks in advance

Did you try turning on DIP switch #1 of the 6 switch pack at the bottom of the DBV200?

[pinshoppe]

i did try the dip switch, same results.  its weird because it will take my 1 dollar bill add no credits and be ready to accept another bill, however when i put a 20 in, it takes it, adds no credits, but then turns red and not ready to accept other bills until i open and close the door.  im going to ring out the wires today

[pinshoppe]

wiring rings out from acceptor to backplane, unfortunately dont have a scope

[edoleu]

What is the history of the problem? Did the bill validator ever work with it since you've owned it? If so, what changed?


This really reminds me a lot of the problem I had with my V7200. I know that it's a different machine, and a different problem, but I sympathize with the frustration of trying many different things to try get it fixed.


Ethan

[pinshoppe]

its a customer of mines machine.  they claim it did work once upon a time.  it originally came in for dead battery and a general cleaning and check up.  everything was business as usual until this.  the only other time come across this before in my 15 years was on a williams, and it turned out to be a power supply issue.

[edoleu]

Oh, I didn't realize that you have a repair shop. Cool!


That's a vexing problem for sure.


I wonder why the validator will take a $1 but get upset about a $20...

[Badbaud]

What is the credit limit set at?

[pinshoppe]

800, but like i said, it still wont add the credits for a dollar

[whatadish]

did you ever get tis issue resolved....I have the exact same issue

[jthelman]

Hope someone can help I have the same issue with my machine, accepts the money but no credits.

[Sunrise Side]

It's a problem with a chip U34 on the MPU or the GRAY ground wire on the BV harness at the backplane needs to be moved . Look to see if you have this gray wire in this position , 3rd from the left. Gray wire needs to be in this position.

[jthelman]

Moving the grey wire fixed problem, thanks so much!  Problem solved.