Needs a Cap Kit ???

What kind of monitor is it? Has it always had these problems or are they new?


A cap kit is like giving your car a tune up. It sets a known good baseline to continue further troubelshooting. I'd say the line running through the screen is more likely a grounding issue and the flicker could be a failing cap, failing flyback, or cold solder joint.
 
Looked more like the picture was trying to "snap" every so often. Possibly a cold solder joint or the flyback might be starting to go bad. Naturally this depends on the make and model of monitor since some have particular known faults/quirks.

The hum bar could be from the video signal harness being run in the same bundle with AC power wires. Take the back door off of any coin-op video game and you'll notice that all the AC power wiring is bundled on one side of the cabinet (monitor power and marquee light fixture power). On the other side of the cabinet the video, sync, and speaker wires are bundled together.

Check to see that the monitor's frame ground wire is connected.
 
I'll bet the flyback's trippin. It might be a bad connection at the anode cup, though, right? I've seen some spark up there and do things like that.
 
I've got a 4600 doing the same thing (just MUCH worse) and I'll bet dollars to donuts it's a bad connection. I haven't bother fixing it because... well... I'm REALLY lazy and I just use it to test boards.

But I'd be willing to bet it's a bad connection/cold solder joint.
 
Thanks for the responses guys, monitor work is new to me, here are some pics.

The "Humm" bar I didn't even see until I shot the video I guess do to the smoked plexi under the bezel.

So I guess the first thing to do would be to get the anode cup sitting correctly.
Discharge first????

Then.....
Thanks again for all the help
 

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Looks like someone has "transplanted" (and very poorly at that) a Wells-Gardner 4600 series chassis onto an Electrohome G07 frame.

Look at that poor flyback dangling there. Plus the weight of the flyback is pulling the anode connection loose.
 
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