Popeye had a seizure (loud screeching sounds)

mecha

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I came into work today to find my Popeye off, and when I plugged it back in, I realized why it was off.

it started making these loud screeching and shrieking and scratching sounds. for fun, I popped the board out, pressed down on all the roms, reseated all the cables (it's a 2 board) and threw it back in and the sounds went away.

literally. I coined the game up, no sound.

I went to tinker with the volume knob and got the screeching shit again, this time with a little spark-age coming out of the volume knob.

is the amp board toast? the monitor DOES need caps (has the famous vertical squish/fold), but will caps resolve this?

also, how do you check the voltages on these? these are foreign lifeforms, I only really mess with JAMMA games (or stuff from that era)
 
Sounds like the volume pot or the amp...is the pot on the board or are they on the monitor like in Vs. System?

I'm not sure how many ohms or volts are supposed to be registered on the sound pot...you'd check it with a multimeter..

I'm still learning, but the way I understand it is like this: Let's say it's a 10 or 5 Ohm pot. When the pot is turned all the way off, you'd get close to 0 ohms..when it's fully open, you'd get 10 ohms. Can you see what size pot it is?
 
game worked perfectly fine for a year now, I'm an asshole and run it commercially, so it's likely it's got some kind of issue with the amp board itself. and yes, it's a Sanyo EZ, volume pot's on the monitor.

it might have cold solder up the ass, but like I said, the picture had some issues at the top, so it's never been capped apparently.

I have an extra monitor that I bought for, incidentally, the cab I bought from you. :p it was working according to the guy I bought it from, surprisingly I don't think the burn was that bad on it either. was out of a Vs. Duck Hunt.

maybe it's time to pay Bob a visit. deluxe kit.


any other takers? come on, I'm asking about a classic game with a Sanyo EZ, you're supposed to flock to me. :eek:
 
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I would recap the sound board and monitor. If a 20ez has foldover its time for a cap kit...way past time. That being said, the caps on the audio board are probably just as old as the monitor.
 
swapped another EZ in, geometrically it's mint. the only thing I didn't like on it though, after I turned the brightness up high enough that you could see it like the old monitor was that it had a wave going from the bottom upward.

what's the likelihood that I have a 100V monitor in a 120V machine? I can't tell what's what, the monitors look the same. only thing I noticed was "EZV115" blah blah on the top of the monitor frame, nothing anywhere about voltages.

I think the serial tag on the back of the machine said 120V.

the monitor was pulled from a Vs. Duck Hunt.
 
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