Searching for Defender rom image/checksums

Zinfer

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Was going to check each of my eproms out, but can't find any sites with the listed checksums I should be getting. Red Label.
I'm getting 30974 on the first Eprom, checks as verified, but I can't find any checksums to compare it to.
 
For red rom set:

defend.1 - 0974
defend.2 - 7D79
defend.3 - A84D
defend.4 - D9A0
defend.6 - DB9C
defend.7 - DE97
defend.8 - C8AD
defend.9 - 1F54
defend.10 - AFC4
defend.11 - C4AF
defend.12 - D29F
 
Ah now that sounds right. 0974. Did you get these from the Mame Rom Red label? I've been using a site for eprom checksum comparisons and for some reason defender wasn't in there. Thanks a bunch guys

For red rom set:

defend.1 - 0974
defend.2 - 7D79
defend.3 - A84D
defend.4 - D9A0
defend.6 - DB9C
defend.7 - DE97
defend.8 - C8AD
defend.9 - 1F54
defend.10 - AFC4
defend.11 - C4AF
defend.12 - D29F
 
Did you get these from the Mame Rom Red label?
The MAME rom code is the same as roms pulled from a rom board, but I think I got those numbers from dumping working roms (it was a long time ago).
 
Ah-ok cool. Thanks that helped me out checking out the Eproms. They all appear good. I was concerned the 30v surge got them. It's alot easier to check checksums online but I did download the 'Romident' program. We'll see how that works. I should have dumped the roms while I had them out just for safekeeping.

The MAME rom code is the same as roms pulled from a rom board, but I think I got those numbers from dumping working roms (it was a long time ago).
 
Ah-ok cool. Thanks that helped me out checking out the Eproms. They all appear good. I was concerned the 30v surge got them.
What line was it that went to 30v? If it was 5v, then everything got hit. But for some reason I think it was 12v, which is used by the sound board (probably blew a fuse) and *only the ram* on the mpu board. The rom board doesn't use 12v at all.
 
Yea I'm in the process of changing out 4 ram sockets atm. Primary damage appears to be Ram area. I am ordering the Bob Roberts Power supply conversion to prevent this from occuring again in future. I could rebuild to original ps, but it'd probably do it again someday.
 
Come to think of it yes, the guy had a blown 8amp ceramic fuse in the 12v ps line at F3. I pulled it and replaced with a 5amp, but I think it takes a 4, didn't have any 4's. I did check the Eprom on the Sound board, and it verified. Didn't have any checksums to compare it to though.

What line was it that went to 30v? If it was 5v, then everything got hit. But for some reason I think it was 12v, which is used by the sound board (probably blew a fuse) and *only the ram* on the mpu board. The rom board doesn't use 12v at all.
 
The sound board has it's own power regulation system because it is normally powered off the unregulated 12V output. So if it was the 12V that jumped up to raw DC, the ROMs would be fine, as would most of the other chips, except the RAMs which use +5V, +12V and -5V.

ken
 
I've finished and updated the site with the repair work that's obvious. I'm going to wait on the conversion power supply to find out what else may be wrong. I don't really want to replace all the ram unless I get ram problems reported. But I did order 24 of them just in case.

The sound board has it's own power regulation system because it is normally powered off the unregulated 12V output. So if it was the 12V that jumped up to raw DC, the ROMs would be fine, as would most of the other chips, except the RAMs which use +5V, +12V and -5V.

ken
 
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