Replaced the IR21844’S on this board rested them after replacement and they both test good .
Does anything else typically fail on these boards ?
When I install the driverboard in the amp it will power up for a split second and then go into protection mode .
I tested all of the regulators all test fine amp is producing both positive and negative rail voltage .
Does anything else typically fail on these boards ?
When I install the driverboard in the amp it will power up for a split second and then go into protection mode .
I tested all of the regulators all test fine amp is producing both positive and negative rail voltage .
Attachments
Never mind found a shorted diode on the board .
Are these 2 diodes pretty much the same or different ?
Wondering if I can pull a good diode off this board and replace the defective one that’s marked U4D with the one marked KD ES2GA
Are these 2 diodes pretty much the same or different ?
Wondering if I can pull a good diode off this board and replace the defective one that’s marked U4D with the one marked KD ES2GA
Attachments
The ES2G is good for 400v. What's the rail voltage in the amp? The diode has to be able to withstand more than the full rail to rail voltage in the amp.