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Crate GT212 amp , 2005
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N_Cook
Jan 12, 2011, 7:00:20 AM1/12/11
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Second time I've come across this prea ground connected to casing and
separate pa ground connected to casing via standoffs to metalwork. Underside
of pcb large solder pad, upperside 2 pieces of tinned copper wire. The
underside solder seems to compress , maybe pcb as well, and then exceed the
give in the star washer and looses good grounding. This time prea end ,
previous time was pa end problem.
This time will solder brass washer on underside,each end, solder just
between washer and board , not standoff touching surface.
separate pa ground connected to casing via standoffs to metalwork. Underside
of pcb large solder pad, upperside 2 pieces of tinned copper wire. The
underside solder seems to compress , maybe pcb as well, and then exceed the
give in the star washer and looses good grounding. This time prea end ,
previous time was pa end problem.
This time will solder brass washer on underside,each end, solder just
between washer and board , not standoff touching surface.
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