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Author Topic: Bally E-1000 eproms  (Read 6827 times)

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Offline Catalinafan

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Re: Bally E-1000 eproms
« Reply #20 on: September 25, 2018, 08:56:08 AM »
Sorry guess i didn't explain clearly.
My gq-4x works fine but cannot handle proms(82s123)
I was just stating that anytime i had placed an eprom in gq- 4x4x that was bad it would show as blank. I could not write to this again it was bad. Bad eprom = blank
My intention to start was to gain the capability of testing the 82s123 (reading) with my gq-4x wich if i'm understanding correctly can be done with mentioned adapters.
The thought being if i in fact had a bad 82s123 going by prevoius results it would come back with a blank reading.
Next i could then aquire the correct files and with use of mentioned adapters i could then burn to a 27512 wich my gq-4x4x can do.
Hope this explains better.
Take it all I've had too much for too long
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Offline MarkInAz

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Re: Bally E-1000 eproms
« Reply #21 on: September 25, 2018, 10:18:13 AM »
So you need the M3 file right?  Can you erase the old chip? The original chips are uveprom. 

Offline Catalinafan

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Re: Bally E-1000 eproms
« Reply #22 on: September 25, 2018, 10:35:54 AM »
I have those now but "think" i have issues with u29 & u25.
Trying to find a method that i can do with my gq-4x
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Offline Paul

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Re: Bally E-1000 eproms
« Reply #23 on: September 25, 2018, 11:07:04 AM »
You should check your settings on your GQ-4X.
The way that the eeprom works is the prom writer
changes the 0 that is the normal setting of the memory to a 1.
And the only way the 1 can be changed back to 0 is by exposing
the chip with the window open to UV light.
If you are reading all 0's the the chip was never written to, has been put into a UV eraser or the settings on your GQ-4X are wrong.
 
So recheck your settings or go to MCUmall and ask for help to read the prom.
http://www.mcumall.com/Forum/
1st rule of electronic repair.
"Thou shall check voltages"
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Offline Catalinafan

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Re: Bally E-1000 eproms
« Reply #24 on: September 25, 2018, 11:33:53 AM »
Ok i'll try this again...
My burner is working perfectly fine. It does everything it is designed to do.
If I place any known bad eprom in and read it it shows all ff or a blank eprom.  This is a great troubleshooting tool for me to test eproms.  Put it in and read it and if it shows up blank then sure enough a dead eprom.
All other working eproms my gq-4x are designed for that i have tried are working fine. Reading and writing.
My idea was since my gq-4x can't do 82s123 chips that i need to test i can use the 82s123 to 27512 adapter to read the 82s123's i have. This will allow me through the help of the adapter to read and verify atleast contents of 82s123.
Take it all I've had too much for too long
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Offline MarkInAz

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Re: Bally E-1000 eproms
« Reply #25 on: September 25, 2018, 11:21:02 PM »
I understand .Your u25 and u29 which are the  82s123 chips are in question. I dont think those can be erased.  i seem to remember reading them out with my chip reader and saving a copy of mine but i dont have the abilty to write to a blank one either.

Offline Catalinafan

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Re: Bally E-1000 eproms
« Reply #26 on: October 04, 2018, 10:18:09 AM »
I received my adapter boards in and was able to read and compare u-21,25and 29. I am seeing mismatch on u29 and was wondering if someone would be kind enough to verify these 3 for me.
Take it all I've had too much for too long
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Re: Bally E-1000 eproms
« Reply #27 on: October 04, 2018, 11:55:59 AM »
So here is what mine read out as some time ago.  From an E1000 machine.  Hope you can use this HEX format to compare to yours.

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Re: Bally E-1000 eproms
« Reply #28 on: October 04, 2018, 12:00:11 PM »
Great thank you. Ill update shortly
Take it all I've had too much for too long
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Re: Bally E-1000 eproms
« Reply #29 on: October 04, 2018, 04:24:41 PM »
I'm really green at this but trying .I can't seem to find any similar code for the compare. Do you remember what software you used to save?
Take it all I've had too much for too long
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Offline Badbaud

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Re: Bally E-1000 eproms
« Reply #30 on: October 04, 2018, 07:57:47 PM »
My programmer does both.
Let them that don't want any, have memories of not getting any.

Offline Catalinafan

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Re: Bally E-1000 eproms
« Reply #31 on: October 04, 2018, 08:05:48 PM »
I just don't have anything to verify my files against.
I usually get a chip is blank with a bad or dead eprom but i' m getting 2 different files from what should be the same thing.
Take it all I've had too much for too long
(Al Bundy)

Offline Badbaud

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Re: Bally E-1000 eproms
« Reply #32 on: October 04, 2018, 08:32:09 PM »
Then one of your chips is bad. Can you verify the bin file against the EPROM at +/- 10% of 5V power?
My programmer does that and sometimes a chip will check good at 5V but fail at 4.9V.
Let them that don't want any, have memories of not getting any.

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Re: Bally E-1000 eproms
« Reply #33 on: October 04, 2018, 11:25:49 PM »
I'm really green at this but trying .I can't seem to find any similar code for the compare. Do you remember what software you used to save?


I'm using an Advin Pilot U84. Like Badbaud said most programmers can use either BIN or HEX.
I'd suggest reading yours out and save it as a HEX, then open it in NOTEPAD and see what you have.

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Re: Bally E-1000 eproms
« Reply #34 on: October 05, 2018, 12:01:19 PM »
Here are the check sums I get from my chips, same checksum for both BIN of HEX format.

U21 = 02BA
U25 = 1DE4
U29 = 15C5

Cheers,

Mark

Offline Catalinafan

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Re: Bally E-1000 eproms
« Reply #35 on: October 06, 2018, 12:14:22 PM »
This is what i'm seeing on my 2 sets
Well call them set g and set y.


G U21- 00000298
Y U21- 00000298


G U25- 00001D90
Y U25- 00001D90


G U29- 00001568
Y U29- 00001CA0
Take it all I've had too much for too long
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Re: Bally E-1000 eproms
« Reply #36 on: October 06, 2018, 05:11:43 PM »
Yup the G set is close to mine.  Obviously the y U29 off by quit a bit.  Does the g U29 work in the bad machine/motherboard?

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Re: Bally E-1000 eproms
« Reply #37 on: October 06, 2018, 07:02:38 PM »
Well the g set was fully working from another machine but now it quit.  The y set is from project machine i've never had working.

Take it all I've had too much for too long
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Re: Bally E-1000 eproms
« Reply #38 on: October 06, 2018, 07:54:31 PM »
Those old EPROMS fail at the most inopportune times, I was working on a 6000 with a freshly made set of EPROMS and within 2 hours of power up the board started throwing 80 codes.Meaning "checksum error", I rechecked the EPROMS and sure enough one of them had changed some code by not being able to keep 1's or 0's locked into some bytes of memory.
 
Let them that don't want any, have memories of not getting any.

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Re: Bally E-1000 eproms
« Reply #39 on: October 06, 2018, 08:12:02 PM »
Yeah i learned the hard way keep backups after i lost several of my v2000 roms due to lack of experience.(static)
In this case unfortunately i didn't have any capability till now for the 82s123's. And my good board decided to crap out while i was using it for troubleshooting and testing.
Now guess i need to locate a u29 and go from there

Take it all I've had too much for too long
(Al Bundy)

 

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