Three and a half years
between posts? That's gotta be an internet record or something.
So the Pac-Man machine
ran into some trouble, and is actually now stored somewhere I no longer have
access to, so let's pretend I'll never see it again.
But good news! I
scored a non-working Ms. Pac-Man at a garage sale for $40! Some people
would call that awesome. Some people (like my wife) would call that
stupid. I totally get it. But we all have our quirks.
Occasionally coming home with a large non-functioning piece of crap is
mine.
Since sneaking it home,
I replaced the power plug (which had been completely mangled) and replaced the
fuses in the power supply. One of the old ones was blown, some were the
wrong values. Replaced them all with their proper values.
Turned the machine on
and waited for the fuses to explode into fireworks... but they didn't.
Checked the AC voltages at the fuses and they were still good.
Checked the DC voltage power on the game board, and it was good.
But still no image on the monitor.
I didn't hear anything,
either, but I figured maybe in attract mode, it didn't have any audio. I
couldn't remember. So I pressed the credit test switch, and was rewarded
with the classic coin-drop sound! Player One Start, and I was off playing
a game of Ms. Pac-Man! Only I couldn't see anything. The sounds
were a little fast, but according to a label on the motherboard, this machine
had the speedup modification, so it makes sense.
So I guess the monitor's
hosed. I did check that the monitor was getting 120VAC from the power
supply, but I also know enough about monitors to know I shouldn't go poking
around in there all willy-nilly. I didn't hear the high-pitched whine
that CRT monitors all make, which is either because this monitor wasn't
working, or because I have grown old enough not to be able to hear it anymore.
I'm going to assume it's the former.
Time to dig around the
web and see if I can find any easy tests for the monitor that's in there.
The tube is a Samsung A48KRD82X02, but I guess I need to take another
look at the driver PCB. Otherwise, I might just have to suck it up and
buy a new monitor. (Or find a way to get back to that old Pac Man machine
and see if that monitor is good. I suspect it was. I still have the
old main board that was in that machine, and that board doesn't do anything
when I plug it into this cabinet, so that other monitor might have been good.)
