Bally Midway Tv Basketball Power Supply

mgb

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Apr 22, 2008
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I am working on a TV Basketball. Coming off the power supply without the board plugged in I have 5.03 volts so needless to say when I plug in the board, the voltage at my chips is around 4.7 v. There appears to be no way of adjusting the output for this power supply.
Does any one know of any reason why I cant just hookup a switching power supply to at least get the board operating for repair work.
Thanks
 
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