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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Another EPROM question.
I would like to read what is in the old EPROMs in my machine. They
contain the ladder programming for the machine. I cannot get a copy of this ladder from Miyano, who made the lathe and wrote the ladder. Is there a way to read what is programmed in these EPROMs? I guess I should ask if there is a way I can read what is in them. I know what a ladder looks like and can read one but I don't know if one can be read from a device just by downloading and using a text reader to see what is there. Eric |
#2
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Another EPROM question.
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#3
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Another EPROM question.
On 2017/03/31 10:35 AM, Ralph Mowery wrote:
In article , says... I would like to read what is in the old EPROMs in my machine. They contain the ladder programming for the machine. I cannot get a copy of this ladder from Miyano, who made the lathe and wrote the ladder. Is there a way to read what is programmed in these EPROMs? I guess I should ask if there is a way I can read what is in them. I know what a ladder looks like and can read one but I don't know if one can be read from a device just by downloading and using a text reader to see what is there. Eric It would be doubtful if you could. The eprom will give a bunch of hexidecimal numbers. You would need a program that could convert that to the ladder. Not to mention there is likely CPU operating code which you would need to learn or find a code disassembler. Not for the faint of heart! If there is a service shop like mine in your area and they have classic tools such as a Fluke 9010 or 9100 then they can read the EPROM(s) by simply pulling the CPU and exercising the motherboard under proper power. Probably... John :-#)# -- (Please post followups or tech inquiries to the USENET newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#4
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Another EPROM question.
On Fri, 31 Mar 2017 13:35:54 -0400, Ralph Mowery
wrote: In article , says... I would like to read what is in the old EPROMs in my machine. They contain the ladder programming for the machine. I cannot get a copy of this ladder from Miyano, who made the lathe and wrote the ladder. Is there a way to read what is programmed in these EPROMs? I guess I should ask if there is a way I can read what is in them. I know what a ladder looks like and can read one but I don't know if one can be read from a device just by downloading and using a text reader to see what is there. Eric It would be doubtful if you could. The eprom will give a bunch of hexidecimal numbers. You would need a program that could convert that to the ladder. That's what I thought. Maybe I can get FANUC or MIYANO to read some EPROMs and provide me with a ladder printout if I send the devices to them. Eric |
#5
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Another EPROM question.
On Fri, 31 Mar 2017 11:07:16 -0700, John Robertson
wrote: On 2017/03/31 10:35 AM, Ralph Mowery wrote: In article , says... I would like to read what is in the old EPROMs in my machine. They contain the ladder programming for the machine. I cannot get a copy of this ladder from Miyano, who made the lathe and wrote the ladder. Is there a way to read what is programmed in these EPROMs? I guess I should ask if there is a way I can read what is in them. I know what a ladder looks like and can read one but I don't know if one can be read from a device just by downloading and using a text reader to see what is there. Eric It would be doubtful if you could. The eprom will give a bunch of hexidecimal numbers. You would need a program that could convert that to the ladder. Not to mention there is likely CPU operating code which you would need to learn or find a code disassembler. Not for the faint of heart! If there is a service shop like mine in your area and they have classic tools such as a Fluke 9010 or 9100 then they can read the EPROM(s) by simply pulling the CPU and exercising the motherboard under proper power. Probably... John :-#)# The whole problem is that there is only one company in the Puget Sound area that I could find that can work on my machine. There used to be several but so many shops went out of business because of Boeing boom/bust cycles that CNC services companies also went out of business. And since I'm on an island that makes service calls even harder to get. Eric |
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