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mxkid
4 Posts |
 Posted - 04/27/2011 : 12:50:53
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Hi all,
I have just purchased a second hand PCB50B Eprom Programmer to help me repair old arcade machine pcb's. The problem I have is that the 20 pin IC chip next to the parallel port (it's adjacent to the other 6 IC's) was put in back to front and has blown. The chip itself has had the details rubbed off of the surface so I don't know what the chip was - can anyone tell me what it should be? I'm not sure why this was done - the other 6 IC's can be read easily. Also, do you think it will still work even when I replace it? There are no other signs of damage to the board and the chips looks standard.
I have also downloaded '098d12' - is this the correct software?
Sorry if these are basic questions - eproms and their hardware are a bit new to me  |
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| Reply #1
mxkid
4 Posts |
Posted - 04/30/2011 : 07:42:56
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Anyone? I think it's a 74HC224 which is a Octal bus interface but I just need to be certain before I order the new IC.
any help is great |
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| Reply #2
mxkid
4 Posts |
Posted - 05/01/2011 : 22:39:27
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Thanks EZoSat,
Just found some on the net - I'll order one and go from there. I wonder why the details were rubbed off in the first place?
I don't suppose there's a link somewhere to a schematic for the programmer? Would be nice to have something to follow if the new IC does not fix the problem. |
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| Reply #3
mxkid
4 Posts |
Posted - 05/18/2011 : 09:36:08
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EZoSat,
Just to let you know it's up and running - thanks for the information.
I did run into another problem that I solved. My parallel port had the wrong address as I installed a card I found on eBay in a spare port. The EPROM software looks for specific address (0x378 for example). The address for my card is D898. This link tells you how to get round the problem:
benryves.com/products/remappediodll
Hope this is useful to anyone who has the same problem |
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| Reply #4
cdante100
Italy
2 Posts |
Posted - 01/30/2017 : 08:14:08
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quote:
Originally posted by mxkid
EZoSat,
Just to let you know it's up and running - thanks for the information.
I did run into another problem that I solved. My parallel port had the wrong address as I installed a card I found on eBay in a spare port. The EPROM software looks for specific address (0x378 for example). The address for my card is D898. This link tells you how to get round the problem:
benryves.com/products/remappediodll
Hope this is useful to anyone who has the same problem
Hi, I have the same problem, where I can contact? |
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| Reply #5
anniel
2517 Posts |
Posted - 06/15/2017 : 11:25:57
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quote:
Originally posted by cdante100
quote:
Originally posted by mxkid
EZoSat,
Just to let you know it's up and running - thanks for the information.
I did run into another problem that I solved. My parallel port had the wrong address as I installed a card I found on eBay in a spare port. The EPROM software looks for specific address (0x378 for example). The address for my card is D898. This link tells you how to get round the problem:
benryves.com/products/remappediodll
Hope this is useful to anyone who has the same problem
Hi, I have the same problem, where I can contact?
www.benryves.com/products/remappediodll |
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| Reply #6
supervizeur
462 Posts |
Posted - 07/09/2017 : 10:36:28
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quote:
Originally posted by anniel
quote:
Originally posted by cdante100
quote:
Originally posted by mxkid
EZoSat,
Just to let you know it's up and running - thanks for the information.
I did run into another problem that I solved. My parallel port had the wrong address as I installed a card I found on eBay in a spare port. The EPROM software looks for specific address (0x378 for example). The address for my card is D898. This link tells you how to get round the problem:
benryves.com/products/remappediodll
Hope this is useful to anyone who has the same problem
Hi, I have the same problem, where I can contact?
www.benryves.com/products/remappediodll
+1 |
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Topic |
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PCB50B Eprom Programmer Problem
