marxtoys
New member
So... I take a fun road trip to fetch my latest prize - a Chicago Coin Super Flipper advertised as dead. Get there and ask if it's indeed well and truly dead.. He says he didn't want to get anyone's hopes up about an easy fix and plugs in to a nearby cord... There's a HV >SNAP< from the monitor(no raster), hum from speaker, the displays light up with garbage digits, and Game Over is lit.
Bring home and set up.
Plug in switch on... no >SNAP< from monitor and still no raster. Switch off and unplug monitor connector. Switch on and check 5V supply... .14VAC across terminals of big blue cap.. 3.8VDC output; adjust pot up to 4.2VDC. Disconnect 5V supply and connect old computer supply... game draws 2.3 to 2.5 amps at the 4.8VDC that cheapo 'puter supply puts out. Order new 5V 5A supply box.
With 4.8V to game boards, Game over is lit and credit displays 0 .
Touch together the 2 wires that look like they went to a coin switch and credit display reads 1(sometimes 3).
Press start button - Game Over goes out, credit display goes to 0, score display goes to 1000(sometimes 3000).
Once, there was a bip bip bip from the speaker instead of hum. Game sound or wishful thinking?
Once, the score went from 1000 to 2000 when the plunger was pulled.
After a bit of head-scratching, figured out that the lights for the optical flipper controls were powered by an extra 5V supply in the monitor. fun facts.
Brought home a small TV with a/v inputs from Goodwill for $10. Nice pic with the old NES hooked up, no pic at the Molex plug that went to the monitor.
Never did well with TV repair so the monitor chassis is probably off to someone that fixes them. Tube filament lights up and the screen isn't burned real bad.
That's where it's at. Manual/schematic would probably be helpful but have not been located yet.
Any ideas?
Bring home and set up.
Plug in switch on... no >SNAP< from monitor and still no raster. Switch off and unplug monitor connector. Switch on and check 5V supply... .14VAC across terminals of big blue cap.. 3.8VDC output; adjust pot up to 4.2VDC. Disconnect 5V supply and connect old computer supply... game draws 2.3 to 2.5 amps at the 4.8VDC that cheapo 'puter supply puts out. Order new 5V 5A supply box.
With 4.8V to game boards, Game over is lit and credit displays 0 .
Touch together the 2 wires that look like they went to a coin switch and credit display reads 1(sometimes 3).
Press start button - Game Over goes out, credit display goes to 0, score display goes to 1000(sometimes 3000).
Once, there was a bip bip bip from the speaker instead of hum. Game sound or wishful thinking?
Once, the score went from 1000 to 2000 when the plunger was pulled.
After a bit of head-scratching, figured out that the lights for the optical flipper controls were powered by an extra 5V supply in the monitor. fun facts.
Brought home a small TV with a/v inputs from Goodwill for $10. Nice pic with the old NES hooked up, no pic at the Molex plug that went to the monitor.
Never did well with TV repair so the monitor chassis is probably off to someone that fixes them. Tube filament lights up and the screen isn't burned real bad.
That's where it's at. Manual/schematic would probably be helpful but have not been located yet.
Any ideas?
