Helping a friend get his Centipede working one night it worked the next day monitor is dead, no neck glow or static. Game plays blind and marquee light up. Checked for power to monitor and it reads 119.5 Ac I didn't think it should be that high could the Atari iso be going bad? Chassis is a Kortek and the fuse is good but the B+ filter cap has a domed top. Any help would be great.

