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G07 takes a long time to warm up
Question from Scott: Hi guys. Great show. I just found your podcast, and then your videos, after what I think to be a fairly exhaustive search to solve my problem. I listened with enthusiasm to show #40 and can’t wait to catch up on all of them. I hope you can shed some light on my problem. Here’s my problem: I have a nice condition Centipede on which the G07 monitor takes forever to warm up. By that I mean the screen is terribly out of focus when it first comes on and gradually sharpens to an acceptable focus as the game warms up. The problem started a month or two ago at which time the monitor would start slightly out of focus and sharpen up within 5 minutes. Now it is terribly out of focus and takes 2-3 hours to reach a fine focus. The only solution I found online was to replace the focus pin or socket. Apparently this focus pin can break and cause this problem. I inspected what I think to be the focus pin and it looks fine. I then removed the socket itself, cleaned it and reinstalled it. That don’t help my problem but at least it didn’t make it any worse 🙂 Can you shed any light on my problem? Thanks again. Scott from Oklahoma City, OK
P.S. Simple Green, a garden hose and a paint brush is the best way ever to clean a monitor and chassis!
1 answer
Response from Jonathan: Scott,
Yes, you are correct. This can be caused by an issue with the focus pin. If the focus pin seems to be in good shape, you might have a problem with a bad filter cap, flyback or perhaps even tube. To eliminate the possibility of the tube, you might try swapping the monitor chassis with another game that has a G07 in it currently to see if the same issue occurs. You could also check your B+ voltage at start up and then after the picture comes back into focus just to see if there are any changes.
Just thought of something, you could try swapping the neck board with another G07 chassis if you’re still not convinced that the focus pin is working. This should at least tell you if the issue is in the neck board or somewhere else on your chassis. Hope that helps. Thank you for your question and good luck with your repair.
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