Red Baron problem.

[simbalion]

As I mentioned in my last post, the reason why I got a lowered price on my Red Baron was because it developed a problem while I was there. Well, now time to discuss and possibly narrow down the problem!

What is going on is the machine will power up, warm up, and then.. well the screen flashes on and off constantly. It will go into game mode and I can just make out that the game is playing and sounding right. I opened it up and was watching the LEDs on the main boards and the CRT board. The main and aux board LEDs light on start up and stay on. The LED on the monitor board lights up, stays on, then starts flashing off and on once everything powers up. If I unhook the main board (by accident there), the monitor LED lights and stays lit. So, do I have a board problem or a monitor problem? I an hoping it's an issue where I can just remove a component to have it repaired instead of trying to move the whole game. I have a couple minor cabinet repairs to make as it is because of the move.

On a final note, I noticed that the power supply makes a rather distinct hum when it is on. Is this normal? It does have a whopper of a power transformer on there compared to my other games. Also, this Red Baron is using the Wells Garner monitor rather than the Electrohomes I ususually see. Hope someone here can help!

[Blinddog]

The led on the monitor is the spot killer it blanks out the screen if there is no video input so you don't burn a spot in the center of the screen. How does your +5 volts look? It sounds like a board issue to me but I’m by no means a vector expert. By any chance do you have another vector monitor or with a decent oscilloscope you should be able to hook it up to the XY outputs and Z if your scope supports it and see what being generated off the board.

 

You may want to look into joining the KLOV forum too. They focus more on arcade games and they're pretty good at answer questions

 

Nice pickup by the way. Red Baron is a great game.