WG 4600 Blackout

[Scottacus]

I am in the process of restoring a Gorf game and I have noticed upon several occasions while I am playing the game that the screen will darken and almost "fade to black" only to come back in bright as before.  It seems to happen after playing the game for a while.  I have recapped the  monitor but did not re-flow the solder joints.  I had a similar problem once with a 1984 mac 128 and that turned out to be some bad solder joints on a set of connector pins, could this be the case here (on on of the many daughter boards)?

On a different note, there is a little magenta that shows up on the far left side of the screen when the missions have a blue background, is this a degaussing issue?

Thanks in advance!

[mgb]

I would say its definitely worth a try.
on the 4600, you always wanna reflow the joints for the daughter board connections.
I can't say I've ever seen this exact problem as you've described it but I'm sure you'd benefit from reflowing all joints.

you may wanna post this is monitors for better responses

[grantspain]

it could be the brightness pot on the rgb interface board,i had one last week doing the same

[Scottacus]

Thanks for the suggestion!  I didn't replace that pot when I recapped the boards and it will be fairly easy to pull that board out so I will try that first.

[Scottacus]

Since I replaced that pot and resoldered the connectors I have not had the fade to black issue Thanks grantspain and mgb!