John Bennett
Senior Member
[ukvac] [Tech] Double Dragon ROM
Hello
Got two boards, both look to be copies, top boards labelled 4068A-2 if
it means anything
Both power up, first into a garbled mess with no definition, the other
varies but commonly can get through to the checks. Tried swapping
them with each other to no avail.
Work RAM is fine, but ROM 1,2,3,4 all error, the 63701 is fine.
No schematics anywhere(?) so recreated errors in mame by altering
files..
Rom 1 : 21J-2-3
Rom 2 : 21J-3
Rom 3 : 21J-4-1
Can't find Rom 4 at all for some reason?
Anyone help me identify these on the board itself? seems odd
they're all knackered, maybe a tracks scratched but it looks
okay(ish) to me.
Cheers,
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DATA Imported from archives: originally posted by TvTuna (postmaster@gerbil.u-net.com)
Hello
Got two boards, both look to be copies, top boards labelled 4068A-2 if
it means anything
Both power up, first into a garbled mess with no definition, the other
varies but commonly can get through to the checks. Tried swapping
them with each other to no avail.
Work RAM is fine, but ROM 1,2,3,4 all error, the 63701 is fine.
No schematics anywhere(?) so recreated errors in mame by altering
files..
Rom 1 : 21J-2-3
Rom 2 : 21J-3
Rom 3 : 21J-4-1
Can't find Rom 4 at all for some reason?
Anyone help me identify these on the board itself? seems odd
they're all knackered, maybe a tracks scratched but it looks
okay(ish) to me.
Cheers,
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
DATA Imported from archives: originally posted by TvTuna (postmaster@gerbil.u-net.com)