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#10
03-19-2003, 04:15 PM
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Todays update:
Finished recapping the two chassis today. Plugged everything together, and of course a new problem. Fuse blew and one 5U4 was doing a light show. Tried new 5U4 no difference, isolated it down to the deflection chassis. Pulled the chassis and power supply down to the bench looking for a solder bridge or something I did wrong - Nothing. Troubleshooting 101 - disconnected all the connections to the B+, no problems B+ stayed where it belonged, no sparks. Reconnected a electrolytic, still good. Reconnected the line feeding the screen neutralizing coil control, B+ gone. Got close to the control and the unmistakable stench of burned control waifed up. This is a 60 ohm 4 watt center tapped wire wound control that adjusts the voltage to the neutralizing coil around the crt bulb. I guess it had burned up a while ago and when I cleaned it and moved the wiper it shorted. Of course no such animal in the parts bin, so for now I disconnected it from the circuit. Fired it back up and this is what I have: 
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