Hi,
I was troubleshooting a garbled screen on my newly acquired Sprint 2 and, while trying to test the chip seating, I damaged a ROM to the point of breaking of 2 pins. I would like to reprogram a new one but I'm having trouble determining the replacement chip because all of the markings are worn off are faded beyond repair.
From the schematic, I damaged ROM 006290 (SPRINT II Race Track ROM 1). My board has 4 ROMS on it signifying it's a version 3 board and I've downloaded the 006290 B1 file that fits this chip/position.
Problem is, I can't figure out what kind of chip it was or would be. It's 24 pins and it looks just like those purple ceramic (with gold plating) 2708 or 2716 EPROM chips on eBay. But, let's just say that I really don't know how to classify chips and that I really have no idea what I'm doing. Can someone help me figure out what chip I should be using and what programmer can dump the file? I'd at least like to get the board back to the way it was before I messed it up.
I was troubleshooting a garbled screen on my newly acquired Sprint 2 and, while trying to test the chip seating, I damaged a ROM to the point of breaking of 2 pins. I would like to reprogram a new one but I'm having trouble determining the replacement chip because all of the markings are worn off are faded beyond repair.
From the schematic, I damaged ROM 006290 (SPRINT II Race Track ROM 1). My board has 4 ROMS on it signifying it's a version 3 board and I've downloaded the 006290 B1 file that fits this chip/position.
Problem is, I can't figure out what kind of chip it was or would be. It's 24 pins and it looks just like those purple ceramic (with gold plating) 2708 or 2716 EPROM chips on eBay. But, let's just say that I really don't know how to classify chips and that I really have no idea what I'm doing. Can someone help me figure out what chip I should be using and what programmer can dump the file? I'd at least like to get the board back to the way it was before I messed it up.






