On Sat, 29 May 2010, Keith M wrote:
Gene Buckle wrote:
I've got a DataFlyer 500 expansion for my
Amiga 500 and it's dead as a
post. There's +5 on the connector but no where else that I can find on the
board. Does anyone here happen to have a schematic for it or know where I
can find one?
tnx.
g.
Gene,
I've got one of those. I haven't seen a schematic. Mine works fine. If you
want to provide detailed instructions on exactly what measurements, etc you
need, I can do them. I also have the installation disk too, if you need.
I'm tied up for the next couple days, but I'll be free after that.
Thanks Keith.
I've tested the Vcc pins on all the chips that are on the board and none
show +5. The A500 works without issue so I know the power supply is ok.
I can find +5 on the .100 dual pin header that the memory expander plugs
in to, but no where else. +12V does show up on the molex power connector
for the drive.
I've also checked both sides of what look like tantalum caps and I get no
power there either. I can't see any visible damage to the board, no cut
or scratched traces, etc. I'm at a total loss as to why it's not getting
any power.
g.
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