My NFL Blitz 2000 Gold Edition/ NBA Show Time NBA on NBC Voltage Problem

knol1968

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My NFL Blitz 2000 Gold Edition/ NBA Show Time NBA on NBC Voltage Problem

My NFL Blitz 2000 Gold Edition/ NBA Show Time NBA on NBC not a dedicated cabinet machine sat for about 6 months and when I pulled it out and pluged it in the monitor said

Midway Video Boot Loader
Copyright (c) 1999 by Midway Games Inc.
Booting :game.exe......

and then the screen goes blank for a minute and does it again. I checked the voltage at the JAMMA edge and OK 5.1 and 12.1 except the -5 was reading -4.1, also reading the same on the converter +5.1 amd +12.1 except the -5 was -4.1. I assume I need a new converter? Not sure what the - volts are for? Would this cause my problem? Best place to purchase converter?

Thanks
 
id try turning the +5 volts up A LITTLE but not too much to fry any chips
dont go over 5.25 for very long at all but see if it boots with the higher voltage

also try measuring the +5 volts on the PCB to see if you have any voltage drop between the power supply and the PCB
could be you have a weak pin in the connector or a bad wire
 
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