- Joined
- Oct 19, 2005
- Messages
- 575
- Reaction score
- 65
Hey guys,
Just got a used Galaxian PCB off E-Bay, and when I tested it with a JAMMA adaptor, I can play the first level fine usually..(sometimes i cant even make it through the first level without a reset)then either the board resets, or I just dont get the second level....I can still fly and shoot, which is kinda cool, and the background keeps moving...I measured voltage at the edge connector and am getting around 5.1 volts, however, on one of the 74 series chips twoards the bottom edge of the board Im getting a little over 4 volts.....so I did some poking around and I am getting 4 volts on the large 10000uf caps on the board...they have not been changed....does it sound reasonable to suspect that those caps could be bad and causing the issue? Anyone ever seen this type of failure before? Any help you guys can give would be appreciated...
Just got a used Galaxian PCB off E-Bay, and when I tested it with a JAMMA adaptor, I can play the first level fine usually..(sometimes i cant even make it through the first level without a reset)then either the board resets, or I just dont get the second level....I can still fly and shoot, which is kinda cool, and the background keeps moving...I measured voltage at the edge connector and am getting around 5.1 volts, however, on one of the 74 series chips twoards the bottom edge of the board Im getting a little over 4 volts.....so I did some poking around and I am getting 4 volts on the large 10000uf caps on the board...they have not been changed....does it sound reasonable to suspect that those caps could be bad and causing the issue? Anyone ever seen this type of failure before? Any help you guys can give would be appreciated...
