modessitt
Volunteer: Encyclopedia Submission Moderator
So - I fixed a Q*Bert a month or so ago, and got the sound back by rebuilding the +12 circuit on the power supply and got the hum to go away by repairing some burnt connectors/traces on the filter board. Everything looked and sounded good while here in the shop. Tested it for about a week and had it on all day while I was here - no problems.
The game has been home for about a month now, and the owner tells me that after the game has been on for about 2-3 hours, the sound will just start to fade away. Cycling the power will get it to come back for a while before fading away again.
I'm thinking I should rebuild the entire sound board (new caps, amp, etc) and maybe the rest of the PS? Is there any other voltage line on the PS that could cause this?
Unfortunately, the game is upstairs and I have no help today, so I was just going to go grab some boards to rebuild here. I'd rather have the entire game so I can test it here, but that's not possible today. I'd like to make sure I bring back anything that I need....
The game has been home for about a month now, and the owner tells me that after the game has been on for about 2-3 hours, the sound will just start to fade away. Cycling the power will get it to come back for a while before fading away again.
I'm thinking I should rebuild the entire sound board (new caps, amp, etc) and maybe the rest of the PS? Is there any other voltage line on the PS that could cause this?
Unfortunately, the game is upstairs and I have no help today, so I was just going to go grab some boards to rebuild here. I'd rather have the entire game so I can test it here, but that's not possible today. I'd like to make sure I bring back anything that I need....

