On the side of the amp I replaced defective fets 4 of 8. I have r-r oscillation. The 2 outer fets of the 8 have about ~100 p-p. On the inner 4 I have about -20p-p
On the opposite side of the amp I have no rail oscillation
On the opposite side of the amp I have no rail oscillation
You need to look a this per driver IC. For any of the 4 drive ICs, do you have r-r oscillation on all of its FETs?
For the FETs with less than full r-r oscillation, do you have full rail voltage on those FETs?
For the FETs with less than full r-r oscillation, do you have full rail voltage on those FETs?
Is it possible that the driver ic’s failed on the other driver board even though the fets on that side are good?