Arcade EPROM Programming with GQ-4x4
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- čas přidán 6. 01. 2016
- In this video I will explain how to erase and re-program Arcade EPROMS in Windows. This should also be the same for the Mac version (by using Bootcamp partition running Windows).
GQ-4X programmer:
goo.gl/785FrR
UV Eraser:
goo.gl/5u6T7i
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Can you explain the offset and if an eprom were not written at 0x000000 would that have an effect if the eprom in question were used to start a computer?
Yes, the default is 0x000000. That's what the game PCB is expecting to read from. If it's set to something else then when the PCB goes to read the EPROM it won't find the data that it needs to run.
Typically offsets other than 0x000000 are used to "split" roms in half for bootstrapping scenarios where you have one rom split into 2 EPROMS. It's pretty rare. 99% of the time it will start at 0x000000.
hey hope all is well im trying to learn how to do what you just did but im having some problems burning chips so heres my question is there a website where i can download the binary files or can i copy file from a good brand new chip and use it to write to otrher chips
Kirkland Banton People typically grab them from the MAME roms out there. There's not one site per se. There are many sprinkled throughout the web. If you google the word "rom" after the game name you will find stuff. They are typically zipped and if unzipped you will find the files inside that you need. They are usually named according to the position on the board. For example it may be named Defender.56 which means IC 56. All vary. What game are you trying to repair?
o ok and whats a mame what does it means im from jamaica my family is in the arcade poker machines so i am trying to learn how to use the gq trueusbuniversalprogram but im having a bit of trouble burning them,and plus i noticed that most guys on youtube they already have files in the computer so i was wondering if they used the same programer to copy adn save the files from other brand new motherboard chips and so on
im trying to repair the hi lo doubleup joker poker gaming boardsthe u13,u18 and also u31,ive tried burning them copying from other chips from brand new poards but it wnt turn on any help would be great
Can you program isd chips with this programmer and ne555p timers ?
I'm not sure. But it does come with adapters. You can check compatible devices here: www.mcumall.com/comersus/store/mcumall_TrueUSBWillemsupportICs.asp
Do you convert the file from mame to bin type?
Or the software do it.
No conversion necessary. MAME uses bin files which are zipped.
Thanks
Did you know what the software displays this massege to me ?
VerifyFailed, Address=0x000000, Device=0xFF, Buffer=0xE1?
That means that the write did not complete properly. After it writes to the EPROM, it will compare the EPROM that was just burned to the file that was loaded. Try erasing it again and re-writing to the chip. If it continues after a few tries, the chip is probably bad. Also, try erasing it for a longer time first (45 minutes) and then try. I've seen older chips take longer to erase than newer ones. Last but not least, make sure the windows on the EPROM is clean and shiny to allow the light to go through to erase it with the UV eraser. Good luck!
I have an M27C4001 EPROM whose datasheet/manual states that the programing voltage is 12.75V ± 0.25V. Can this programmer be used to program the mentioned chip? If the answer is "yes" do I have to power the programmer via USB or it needs separate power using the 9V power into the port?
This programmer works fine with that chip. An external power source is not needed.
@@delsarcade Thanks for the response. I managed to read from one chip and program the other. I am only waiting for the moment of truth when I put the component on the actual device that I would like to test and see if it works.
is there a way to backup a program coming from an old EPROM?
Yes, just set it to read and then save the file locally. You just need to know the EPROM type.
Can you
Vw
1.2 CPGA
93c86 16bit
Simos 9.1
5WP40911
03D906023 B
What mac version are you referring to?
Do you have a timecode in the video?
DeLuSioNaL's Arcade In the video description. As far as I know there is no mac version. Virtualbox is the only option.
@@gettingpast4391 Thanks! Description has been updated. People have reported that Virtual box has issues. Boot Camp has more success.
How do you delete all the code in the buffer after you're finished? Thanks
Exit the program and it will release it.
@@delsarcade Thanks for your response I try that and it still keeps it, driven me crazy.
Try reading a blank rom after you are done. It will change the buffer to all FFFFFFF, which means blank. Also, make sure you have the latest version of the software installed. I use 7.27.
@@delsarcade Thanks, that worked, Sure appreciate your time and help.
@@acecriss9326 No problem. If memory serves, the latest version of the software corrects that bug and should wipe it clean when you exit.
it seems you don't know the difference, EPROMs are normally erased with UV light and EEPROMs can be erased and written electronically
you don't have to pronounce them differently
Thanks for the tip! Yes, since the airing of this video I now pronounce them ALL as eeee-prom. And yes, I am aware of the differences as well. Thanks for watching!
@@delsarcade apart from the wrong pronunciation it was a great and informative video
@@delsarcade apart from the wrong pronunciation it was a great and informative video