roothorick
Active member
We have four Fast & Furious DRIFT sit-down dedicabs. Each was outfitted at the factory with a Wells Gardner D279410. Anywho, one day, one of the monitors went dark. The blue disappeared, and the picture was distorted. So, I took out the neckboard and mainboard and sent the lot to WG. They looked at it, repaired it (I later found out they only replaced the microcontroller and EPROM...) and sent it back. Here's where the fun begins.
So I get it back, and reassemble the monitor. What I didn't know was the pins on the anode cap were bent out of shape, and not properly seated. I also made the mistake of not connecting the four wires running from the yoke to the main board (four big pins next to the flyback... not labeled in the diagram, maybe P201?). When I turned it on, it gave its usual startup whine, but never snapped into action. I turned it off, took another look, and noticed the one connector loose. I seated that one, tried it again. This time, I was greeted by a loud CRACK! and a blue flash. "Lovely, I just fried something!" At this point I just turned it off and went home.
Now today, after a phone conversation with John Pruski at WG, I discovered the bent pins on the anode cap. Bent them back, put the cap on correctly and.... not so much. No picture on the tube. I get the usual whine then quiet snap, but the whine doesn't go away and I hear a faint crackling, kinda like an old CRT cooling off. John says it's probably something in the Horiz Output that shorted out, but I'm looking for details and second opinions. Anyone?
So I get it back, and reassemble the monitor. What I didn't know was the pins on the anode cap were bent out of shape, and not properly seated. I also made the mistake of not connecting the four wires running from the yoke to the main board (four big pins next to the flyback... not labeled in the diagram, maybe P201?). When I turned it on, it gave its usual startup whine, but never snapped into action. I turned it off, took another look, and noticed the one connector loose. I seated that one, tried it again. This time, I was greeted by a loud CRACK! and a blue flash. "Lovely, I just fried something!" At this point I just turned it off and went home.
Now today, after a phone conversation with John Pruski at WG, I discovered the bent pins on the anode cap. Bent them back, put the cap on correctly and.... not so much. No picture on the tube. I get the usual whine then quiet snap, but the whine doesn't go away and I hear a faint crackling, kinda like an old CRT cooling off. John says it's probably something in the Horiz Output that shorted out, but I'm looking for details and second opinions. Anyone?