Power switcher wiring config/ hookup on All Points Bulletin A.P.B.

john2654

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Power switcher wiring config/ hookup on All Points Bulletin A.P.B.

The switcher power supply is dead in my APB. I'm gonna put in a computer AT power supply now just for testing.

Need to know the wire config.

Currently:
Dark brown & light brown w/ white stripe: in -GND
2 Red in: +5V
Dark brown: in FG (frame ground) --- wrong spot???
Loose Red w/ white strip: ???
Black and white wires are AC, I know.

http://forums.arcade-museum.com/attachment.php?attachmentid=65123&d=1300329952
 
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Just found the schematics for the APB, looks like some wires were wrong.

Correct config:
Red/white= + Sense
Red= +5V
Red= +5V
Brown= Ground
Brown= Ground
Brown/white= - Sense

OK, so that probably explains why the switcher is dead.

But where do the + & - Sense wires go??
+Sense with +5V & -Sense to Ground (-)??
 
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Hooked up the 2 brown wires to grd (-5V) and the 2 red wires to +5V on the AT computer power supply. Works great.

I left the 2 sense wires disconnected. Don't know if I need them or not, but it works fine without them.

Now I need to fix the APB Triac board because the red light is always on, but the blue functions correctly by blinking when the siren is going.
 
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