Winslow
Well-known member
I have a GORF that was working fine for years and the video suddenly began to look blown out like the brightness was too high. It was suggested that the tube might be failing so I swapped out the monitor with another WG4600 that was confirmed working in my Defender. I can't get an image on the replacement monitor. I've also tried a GO7 with no luck.
Since dealing with this issue I've socketed and replaced the TBA530 and reflowed solder on connectors on the RGB board and the game board. The PS board has also been rebuilt and confirmed good. The game has attract sounds, coins up and plays blind.
It sure seems like a sync problem. Can someone confirm the proper connections for the video connector and sync cable (RGB, Gnd, sync) I've also tried adjusting the frequency oscillator with no improvement on the 4600.
I have a second known working board set that I can swap in to isolate if the problem is with this board set but I don't think there is a problem with it. I'm open to any suggestion you have that might help diagnose if this is a board problem or sync problem....
Since dealing with this issue I've socketed and replaced the TBA530 and reflowed solder on connectors on the RGB board and the game board. The PS board has also been rebuilt and confirmed good. The game has attract sounds, coins up and plays blind.
It sure seems like a sync problem. Can someone confirm the proper connections for the video connector and sync cable (RGB, Gnd, sync) I've also tried adjusting the frequency oscillator with no improvement on the 4600.
I have a second known working board set that I can swap in to isolate if the problem is with this board set but I don't think there is a problem with it. I'm open to any suggestion you have that might help diagnose if this is a board problem or sync problem....
