9 and 10 showed the same for everything on both chips
Chip circled in red showed only some noise in normal idle
Half protect showed some oscillation of some sort
Circled in blue showed nothing in half protect but I’m also not sure if I was properly making contact with it
Chip circled in red showed only some noise in normal idle
Half protect showed some oscillation of some sort
Circled in blue showed nothing in half protect but I’m also not sure if I was properly making contact with it
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Do you see excessive noise on the B+ or remote terminal of the PS driver board?
To check this, solder a short piece of wire to the ground terminals of the driver board and use the short grounding lead that clips onto the end of your scope probe to connect that that short wire. Don't let it move around to contact anything else. Then probe B+ and remote (and any other pins) to see if one is noisy.
Check these as the amp goes from normal operation into protect.
To check this, solder a short piece of wire to the ground terminals of the driver board and use the short grounding lead that clips onto the end of your scope probe to connect that that short wire. Don't let it move around to contact anything else. Then probe B+ and remote (and any other pins) to see if one is noisy.
Check these as the amp goes from normal operation into protect.
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