improperly installed bridge rectifier

The caps in the power supply would pop... semiconductors would short and the fuse would blow... the bridge may even short out.
 
The caps in the power supply would pop... semiconductors would short and the fuse would blow... the bridge may even short out.

Other then than Mrs. Lincoln, how was the play?

Seriously, the amount of damage would depend on the circuit being powered and whether it could stand up to the power values being reversed.

Basically, the bridge rectifier directs the electricity via one way gates to change the AC to fullwave DC. If you reversed the bridge, basically you flipped the battery over and plugged it in wrong.

ken
 
Some circuits will run in either direction (think of a flashlight, it doesn't matter which way the batteries are plugged in). Most game circuits won't (think of a radio with the batteries reversed).

Whether there was damage or not when it was powered up backwards is really dependant of the voltages and the circuits.

ken
 
Uh... why do you think the bridge would/could short out?

If it was installed backwards where +/- were reversed and things shorted... it could damage the bridge if the current pull was too much.

Fuses could go first but that all depends on what size fuse is in there. Is it really a fuse or is it wrapped in aluminum foil? Is it oversized? ;)
 
EDIT X2:

It depends on how wrong you hooked it up. If you hooked the 120VAC on adjacent pins of the rectifier, you would blow a fuse and/or kill the rectifier. If you hooked it up 90 degrees I think the most that would happen is you'd pop a fuse. In that case both the unreg +10.3V and signal GND would thrash in the same direction, and the current would find a path to ground through either the coin door or the control panel. (Maybe the monitor too so I'm not sure what would happen there.) If you hooked it up 180 degrees you'd be swapping +V and GND which might damage all kinds of things on your AR board. I think the main board might be safe though.

EDIT: I wouldn't go testing any of those theories though! Double-triple check your connections before you apply power.
 
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If it was installed backwards where +/- were reversed and things shorted... it could damage the bridge if the current pull was too much.

Fuses could go first but that all depends on what size fuse is in there. Is it really a fuse or is it wrapped in aluminum foil? Is it oversized? ;)

The bridge is rated for 35A.You'll smoke the power traces on the PCB long before the bridge notices...
 
alright, let me get this straight, if it was installed without checking and everything works does that mean it was installed properly? i have a game that has a new rectifier installed and works does that mean they did it right? (when i got the game it came with all the old replaced parts in a bag)
 
alright, let me get this straight, if it was installed without checking and everything works does that mean it was installed properly? i have a game that has a new rectifier installed and works does that mean they did it right? (when i got the game it came with all the old replaced parts in a bag)

Yes. If it was installed incorrectly you'd know it. :)
 
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