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HarrieD
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« Reply #30 on: November 25, 2015, 03:43:07 pm » |
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Decided to swap the flyback. Got it out and found a burned stain on it so maybe that's where the problem is. Now there is a black cable going to the socket that connects to the neck. How can i get that black wire out of that socket???
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My blog / pinball collectionRestoration projects: Fire!, Outrun Good friends: Funhouse, Whirlwind, Earthshaker, BTTF, Seeburg V200, Neo Geo cab Left the building: F14 Tomcat, Independence Day
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HarrieD
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« Reply #31 on: November 26, 2015, 02:57:58 am » |
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Pics: How must i remove the black cable from the neck socket? Must i desolder the socket from the neckboard first?   Dark spot on the flyback. Can this be the issue??  |
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My blog / pinball collectionRestoration projects: Fire!, Outrun Good friends: Funhouse, Whirlwind, Earthshaker, BTTF, Seeburg V200, Neo Geo cab Left the building: F14 Tomcat, Independence Day
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HarrieD
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« Reply #32 on: November 27, 2015, 12:58:47 am » |
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Got it replaced. No luck unfortunately. I'm stuck. Damn!
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My blog / pinball collectionRestoration projects: Fire!, Outrun Good friends: Funhouse, Whirlwind, Earthshaker, BTTF, Seeburg V200, Neo Geo cab Left the building: F14 Tomcat, Independence Day
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iankellogg
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« Reply #33 on: November 28, 2015, 09:10:10 am » |
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anyway you could isolate horizontal and vertical yokes?
If the yoke is shorted that could be pretty bad. I am really just not sure how to help. Sounds like it has something to do with the yoke or driving circuits with the yoke.
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HarrieD
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« Reply #34 on: November 28, 2015, 01:09:07 pm » |
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Thanks for your input Ian. Fortunately i found someone who can fix the chassis or has a replacement for me.
I will check some standard crapp before shipping the chassis.
One question though. In one of John's episodes John mentioned the use of an isolation transformer is mandatory. What do you think regarding this issue. Can this be the cause why my monitor is defective?
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My blog / pinball collectionRestoration projects: Fire!, Outrun Good friends: Funhouse, Whirlwind, Earthshaker, BTTF, Seeburg V200, Neo Geo cab Left the building: F14 Tomcat, Independence Day
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HarrieD
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« Reply #35 on: December 11, 2015, 02:20:54 pm » |
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I'm a donk, a stupid donk. I mounted the HOT directly to the heatsink. The old one was mounted without isolation as well but i guess in the years the package has changed or didn't i notice the mica on the old transistor maybe?
So i mounted a new hot, isolated it, and.... succes!
Thank you Ian for your support and patience. Case closed.
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My blog / pinball collectionRestoration projects: Fire!, Outrun Good friends: Funhouse, Whirlwind, Earthshaker, BTTF, Seeburg V200, Neo Geo cab Left the building: F14 Tomcat, Independence Day
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