5500 Pro Slot Machine Error Code 81 Wont Go Away

[mantaramian]

I just got a Bally 5500 slot and changed the battery as well and I am having the same problem every time I turn the machine on i still get error code 81.

I am thinking that I have a broken trace somewhere that will let the machine know that the battery voltage is there.

Any recommendations to what pin on the ram should be checked for battery power????

I ordered the RAMClear set prior to finding the form..... Will these help or do I have another problem that needs to be addressed???

Thanks in advance,

Mike
 

[Buzz]

Should have a small jumper at JW 12 It's also marked BATT  ( located about 1/2 inch from the + end of battery )

Can you post the numbers on the 4 eproms located U 3, 4, 12, and 15  Numbers off just one of the four is all that's needed.

[mantaramian]

I forgot to mention.

I see that, the person that had the machine before me had off set the jumpper....

I thought the problem would have been solved by appling the jumpper to the two pins.....

I place the jumpper on the pins and am still getting the same error 81.

As soon as I get home from work I will get the EPROM information you are requesting....

Thanks,
Mike

[Buzz]

I forgot to mention.

I see that, the person that had the machine before me had off set the jumpper....

I thought the problem would have been solved by appling the jumpper to the two pins.....

I place the jumpper on the pins and am still getting the same error 81.

As soon as I get home from work I will get the EPROM information you are requesting....

Thanks,
Mike

The eprom numbers have nothing to do with the 81 your getting, If those 4 chips have a number 92000 on them you will not need a clear set to do a clear. doing a clear with a 81 won't do any good either

Any chance you installed the battery backwards? Forgive me but I had to ask.

[mantaramian]

I forgot to mention.

I see that, the person that had the machine before me had off set the jumpper....

I thought the problem would have been solved by appling the jumpper to the two pins.....

I place the jumpper on the pins and am still getting the same error 81.

As soon as I get home from work I will get the EPROM information you are requesting....

Thanks,
Mike

The eprom numbers have nothing to do with the 81 your getting, If those 4 chips have a number 92000 on them you will not need a clear set to do a clear. doing a clear with a 81 won't do any good either

Any chance you installed the battery backwards? Forgive me but I had to ask.

LOL about the battery, I do have children and they can be a distraction.....

The battery is installed correctly.... The DMM does indicate +3.9 from ground to the leg from the previous battery.

The EPROM's start with a 94 I believe.....

I will reaffirm when I get home...

Thanks,
Mike

[a69mopar]

http://newlifegames.net/nlg/index.php?topic=5408.msg93621#msg93621  see this post

W

[mantaramian]

So I got home and did battery check just to make sure I didn't mess up .... So the battery is soldered in correct.

I flow soldered the 2 connectors on the back of the board. I then reinstalled the board and I am still getting that fricken Error 81

  Soooooo, what do you think the next step is???     

Is it possable that the person that had the slot machine before me may of swaped boards?

All help is great... If I need to I can include pictures

[mantaramian]

So I have traced the power from the battery to pin 6 of U56.

With the IC in the circuit the power from the battery reads flat (0 volts) I removed the IC very carefully and now I get the 3.6 volts from the battery. I don’t know if this is supposed to function like this with the IC is circuit.

The IC part number is a TLC 372CP
Specs on the IC: http://www.chipcatalog.com/TI/TLC372CP.htm

Does anybody have any suggestions????

Thanks in Advance,
Mike