G1 Mystery on K4915 chassis

silvereagle

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Any idea why anyone would solder a wire on the G1 pin of the neckboard socket on this K4915 Medium res and not solder it directly on the neckboard? I took the chassis out of my Championship Sprint to wash because it was disgusting and found the loose wire which I couldn't make sense of until I conducted a full inspection.

I suppose I could solder the wire to the back of the neckboard but maybe best to unsolder the socket and fix it properly? The chassis works, I just can't recall if the wire actually broke off or was loose all along but I don't believe it would work with the G1 pin not in circuit? This is more of an education lesson for me as I dive deeper into monitors, so I appreciate feedback from the experts.
 

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This med res monitor as well as the med res K7000 have a negative G1 (-40V) unlike standard res monitors that have a G1 at ground potential (0V). So the pin is disconnected from the ground trace for this reason.
 
Shit! Thanks for responsong and clarifying. I ended up soldering back on the neck board but I'll remove it now before messing something up. Really appreciate it!
 
Something I learned today. I wasn't aware there was a difference in the G1 between standard and medium res. Just glad I didn't power the monitor on. I'll pull the neck socket and place the pin out of circuit again.
 
Something I learned today. I wasn't aware there was a difference in the G1 between standard and medium res. Just glad I didn't power the monitor on. I'll pull the neck socket and place the pin out of circuit again.
That is where the schematic comes in handy.
 
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