Bootleg PCB King of dragons GAL20V8
Posted: March 6th, 2014, 11:14 am
Hello
I have a bootleg PCB with the game King of Dragons (from CAPCOM)
The board is considered dead, blue screen with waves.
I did some tests and i found continuity between ground and VCC, I found the faulty chip, it's a GAL20V8 shorted between ROMs 3 and 4 (on this board I have 1 GAL20V8 near the CPU, and 2 GAL16V8 near maskroms)
So my question, where can I find the program to load inside the GAL20V8 ?
My board seems to be the same like "Cadillacs and Dinosaurs" = http://www.jammarcade.net/pal-dumps/Do you think is it a good idea to load this .JED : http://www.jammarcade.net/files/pals/Ca ... 0v8a-1.jed" to test if I have a boot ?
I tried to read and backup the 2 GAL16V8 but I can't read with my EPROM programmer Minipro 866, I think they are locked ...
Have a nice day and Thank you.
PS : I found the short with a multimeter / continuity test, the first test to do before power on, and to find the faulty chip I power on and put fingers on the board, I detected 2 very hot chip, and one of those was Dead.
I have a bootleg PCB with the game King of Dragons (from CAPCOM)
The board is considered dead, blue screen with waves.
I did some tests and i found continuity between ground and VCC, I found the faulty chip, it's a GAL20V8 shorted between ROMs 3 and 4 (on this board I have 1 GAL20V8 near the CPU, and 2 GAL16V8 near maskroms)
So my question, where can I find the program to load inside the GAL20V8 ?
My board seems to be the same like "Cadillacs and Dinosaurs" = http://www.jammarcade.net/pal-dumps/Do you think is it a good idea to load this .JED : http://www.jammarcade.net/files/pals/Ca ... 0v8a-1.jed" to test if I have a boot ?
I tried to read and backup the 2 GAL16V8 but I can't read with my EPROM programmer Minipro 866, I think they are locked ...
Have a nice day and Thank you.
PS : I found the short with a multimeter / continuity test, the first test to do before power on, and to find the faulty chip I power on and put fingers on the board, I detected 2 very hot chip, and one of those was Dead.