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Author Topic: E2000 error 2...56. Need Help  (Read 4878 times)

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Offline Paulus

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E2000 error 2...56. Need Help
« on: June 07, 2023, 10:13:52 PM »
Hi !
I just bought a not very functional slot.
I cleaned the interior with compressed air and the plates with contact spray.
I found 2 burnt scr on IO bd and a missing thyristor Q3 on the hopper which I replaced
now i get error 2...56.
I downloaded the manual but I can't figure out where I should troubleshoot next.
if anyone can guide me in the right direction...
(Large pics in my album)
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Offline Paulus

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Re: E2000 error 2...56. Need Help
« Reply #1 on: June 09, 2023, 12:05:59 AM »
after removing and reinstalling all the ROMs, I have a new error code 0.0.0.0.46
please help
how to decipher this code?
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Offline Paulus

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Re: E2000 error 2...56. Need Help
« Reply #2 on: June 09, 2023, 12:45:32 PM »
I measured with the oscilloscope +UR
1.5 V riple
It's too much ?
I noticed that the relay behind the hopper makes a click about every second
something is causing the automatic reset ?
« Last Edit: July 02, 2023, 12:08:47 AM by Paulus »
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Re: E2000 error 2...56. Need Help
« Reply #3 on: June 11, 2023, 05:30:40 AM »
measured on the reset pin of the mcu

what triggers the continuous reset?

please help
« Last Edit: July 02, 2023, 12:09:02 AM by Paulus »
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Re: E2000 error 2...56. Need Help
« Reply #4 on: June 11, 2023, 05:37:55 AM »
I measured C24 under voltage and it shows 0V
is it normal ?
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Offline shortrackskater

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Re: E2000 error 2...56. Need Help
« Reply #5 on: June 14, 2023, 02:30:25 PM »
Not exactly sure what you're doing, and not sure what the "mcu" is,  but can you at least post a photo of the machine and the error code displayed?
I'll see if I can drum up some help.
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Re: E2000 error 2...56. Need Help
« Reply #6 on: June 15, 2023, 12:49:40 AM »
Bally Supermelon 2000
2650 CPU
« Last Edit: June 15, 2023, 08:55:13 AM by shortrackskater »
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Re: E2000 error 2...56. Need Help
« Reply #7 on: June 15, 2023, 12:51:25 AM »
thank you for replying

CPU board

I think it is made of pieces from other slots
« Last Edit: June 15, 2023, 08:54:54 AM by shortrackskater »
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Re: E2000 error 2...56. Need Help
« Reply #8 on: June 15, 2023, 12:56:32 AM »
I cut S1 and now from DIP sw 8 I can stop the automatic reset but no difference
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Re: E2000 error 2...56. Need Help
« Reply #9 on: June 15, 2023, 01:01:13 AM »
now I am in the process of changing all the capacitors
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Re: E2000 error 2...56. Need Help
« Reply #10 on: June 15, 2023, 01:40:05 AM »
Lithium battery + Schottky
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Offline Badbaud

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Re: E2000 error 2...56. Need Help
« Reply #11 on: June 15, 2023, 08:32:28 AM »
Cut R40 off of the board and solder a jumper wire from the CA3081 pin 5 to pin 13

This defeats the low voltage detect circuit.
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Re: E2000 error 2...56. Need Help
« Reply #12 on: June 15, 2023, 10:43:18 AM »
Done
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Offline Paulus

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Re: E2000 error 2...56. Need Help
« Reply #13 on: June 15, 2023, 10:45:10 AM »
No M1 - M3 Eprom, only P1
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Re: E2000 error 2...56. Need Help
« Reply #14 on: June 15, 2023, 10:47:14 AM »
M1 + P1
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Re: E2000 error 2...56. Need Help
« Reply #15 on: June 15, 2023, 10:48:14 AM »
M1 m2 p1
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Re: E2000 error 2...56. Need Help
« Reply #16 on: June 15, 2023, 10:48:58 AM »
M123 P1
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Re: E2000 error 2...56. Need Help
« Reply #17 on: June 15, 2023, 01:46:14 PM »
I put a probe on J2/J5 Bus Address
I underclocked the CPU at 100Hz to see if something is heard on the bus
BA0 I think it looks good
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Re: E2000 error 2...56. Need Help
« Reply #18 on: June 15, 2023, 01:48:38 PM »
BA3 not so good

Noise ?
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Re: E2000 error 2...56. Need Help
« Reply #19 on: June 18, 2023, 02:00:37 PM »
I managed to build an eprom reader and copied the content
Does anyone know if they contain what they should?
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