The Yamaha AN1x Synthesizer mailing list

After 8 years or so, my trusty AN1x has developed a serious fault. The
display illuminates, showing 'YAMAHA 1997', which flashes weakly, and
that's it. It seems as if the operating system won't boot up. I've got
a replacement battery, a CR2450n which isn't a good fit for the
battery socket (the original was a CR2450y, not sure if there's a
difference), but it hasn't made any difference. The AN1x won't respond
to a reset (hold 7, 8 and 9, then power on) or a self check. I've
searched the forum for a similar problem but drawn a blank. Has anyone
else suffered anything similar, or is it ready for the electrical
items recycling skip (dumpster). Any suggestions would be much
appreciated, thanks.