Many games suffer from GI outages at some point in their life. Just because
some of your GI goes dark, it doesn't always mean you need a board
repair. Much of the time this is due to connector burn, often the Molex
housings will disintegrate from high heat and burn. If this gets bad enough,
it will cause board damage. Check all your Molex connections that power your
GI, at first sight of burn, change that housing, also remove some backglass
bulbs that you don't need, and get those 44 bulbs replaced with 47s, or
better yet LEDs.