Lanzar opti drive plus 200 need help with power supply

chipper · 2021-11-29 5:57 pm

How do I verify the gate drive voltage in the power supply for this amp? Im having trouble repairing the power. Any pointers greatly appreciated.

Perry Babin · 2021-11-29 6:04 pm

Do you have a scope?

If you haven't found out already, the pads in these boards are very easily damaged by heat.

chipper · 2021-11-29 6:08 pm

Scope I do not have unfortunately.

Perry Babin · 2021-11-29 6:09 pm

What's the DC voltage on the output pins of the 3525 driver IC?

What's the DC voltage on the gate pads for the FETs?

chipper · 2021-11-29 6:12 pm

Where I put the negative probe to check?

Perry Babin · 2021-11-29 6:16 pm

On the ground terminal.