WG 19k7698 Bonehead Mistake

Cyberwhiz

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Ok, so I installed a WG 19k7698 in a cab about a month ago, been working fine until a few days ago when the screen goes black. The neck tube isn't glowing and, after looking a bit more, I notice that the ground wire from the neck board to the ground loop is disconnected, duh. Naturally, hooking it back up now makes no difference.

I know I read a thread somewhere about the components most likely to fail when this wire is left off but can't seem to find it now. Any help that will make troubleshooting this quicker is appreciated.
 
Chances are that wire didn't matter - if the tube didn't look like a light show, then it was grounded one way or another, probably through the monitor frame.

Check the fuse and go from there. If the fuse is good look for cold solder points and lifted traces, especially on the big resistors.
 
The K7000 will go if that wire isn't hooked up - definitely.

Check IC4, the HOT, D13, C36, C38, R101, R89, the fuse, etc...
 
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