He John,
Welcome back to the M100 playground! The most common issue is either
the Memory Switch has been turned off (on the bottom of the unit) or the
NiCd battery is dead. For a dead NiCD, you can sometimes just leave the
unit plugged in overnight and it may recharge. Sometimes it has to be
replaced (de-soldered and an new one soldered in). Without a working
NiCD backup battery, the unit will normally not boot up.
Ken
On 7/26/16 5:15 PM, John Ames wrote:
I picked up a Model 102 on the cheap recently as I've been wanting to
play around with the M100 again. It's in good condition overall
(barring a dirty keyboard,) but it doesn't seem to want to power on,
either from battery or AC power. I've opened it up and I don't see any
conspicuous damage or signs of broken/burned-out components (there's
some suspicious green fuzz around the ends of the backup-battery
barrel, but no actual leakage on the board, that I can spot.) I'm
going to go over it this evening with a multimeter and just poke
around a little, but are there any common points of failure that I
should look into? I'd kinda like to get it up and running for my trek
to VCF West if possible ;)