Black and White 5 Times Pays Doesn't Come Back To Life

[Nurbo]

Hello,

I just picked up a Black And White 5 Times Pays for repair and I have two questions.

The MPU remains with an 83F0 error. I used the LEAVE IN MAIN with switch 8 and also the clear ram chips. I still have the same error.
By replacing the MPU with a functional one, the machine starts normally.

When putting the defective MPU in another S6000 I still have the 83F0 error.
Can I conclude that the MPU is out of order?
Is there anything to look at that could be fixed on this MPU?


Otherwise this is the first time that I see an S6000 without an optic board under the coin comparator (see pics in attachement)
When I managed to start it I was able to play with it, it accepts token. How is it possible ? Is it because it uses an MC-16 comparator?

Thank you. 

[Nurbo]

I will clarify.

The battery is new and the voltage is good at the 2 terminals of the MPU

I put the U28 / U43 / U20 / U18 chips from the Black and White on the MPU of my working machine and the game starts. This allows me to rule out a faulty chip problem.

And when I put in the machine which works the chips of the machine which works on the defective MPU it does not work, I still have the error 83F0.

[Sunrise Side]

What are the steps for clear procedure you are using?

[Sunrise Side]

Here is some info from Badbaud/Alan
With the RAM chip notch facing away from you - black lead on lower left pin, red lead on upper right pin.
Read DC voltage on each RAM chip. It should be your battery voltage minus about .4 Volts DC.

[Nurbo]

Hello Sunrise and thanks for your reply.

I tried both methods:

Bally s5500 and s6000 stay in mains….
Leave you original chips in your MPU board...Turn off the power and pull out the MPU board...
 Turn on Dip Sw1 # 8
 Put the MPU board back in...
 Press and HOLD the PSEUDO COIN and TEST buttons...
 You should see CH C followed by CL C...(If you do, then you have what they call "Stay in Mains"
 Turn off the power and set the Dip Sw1 # 8 to the off position...
 Replace the MPU and power back on...


And with the ram clear EPROM;

For a Complete, Full, or Partial SafeRAMâ„¢ Clear,
turn the machine power OFF.
remove the Main EPROMs from U28 and U43 and replace them with the clear chips.
turn the machine power ON while pressing and holding the PSEUDO COIN and TEST buttons,
When the message CH C displays in WIN PAID, release the PSEUDO COIN and TEST buttons.
The CH C message is followed by CL C.
turn the machine power OFF.
remove the clear chips and replace them by the Main ERPOMs from U28 and U43
turn the machine power ON.

With the 2 methods I have the 2 messages CH C and CL C. and everything seems to be going normally.
But when I put the MAIN chips back in U28 and U43 and I turn on the machine, it goes into error 83F0


When you talk about RAM chips, are you talking about U30 and U45?

I measured the voltage and I have 0.0 v

I did not do it but I will remove the board from its tray and check the welds on the battery holder.

[Sunrise Side]

Yes check for  voltage on U30 and U45. Yes check the battery holder solder joints. I don't believe those are leave in clear chips? Not sure. If they are they will clear with the dip switch once you get the voltage to the RAM chips. If not the removeable clear chips will work. Only thing I see is that you should hold TEST and PSEUDO buttons IN until you see CL C appear Then you can let go those buttons.

[Nurbo]

Hello,

If the probes of my multimeter are on the correct legs, I have no voltage at the terminals of U30 and U45. My battery is new: 3.65v with the multimeter.

No problem for handling the ram clear, I have already done more than twenty, and this is the first time that I stuck on an 83F0 error

I have just tested on the MPU of the working machine and at the terminals of the U30 and U45 chips I have 2.45vdc.

So I checked the tracks between the + and the JW20 and there was continuity.
I did the same for the - and there was no continuity. I fixed the continuity and the machine is now working!

Thank you for guiding me to the voltage measurement on U30 and U45 !!!