I replaced the power supply fets and outputs in this amp .
It will produce +- rail voltage
I cannot get it to produce the positive regulated voltage it’s suppose to be 15 volts I get -0.77 volts .
This is with black probe on middle leg and red probe on the output leg .
I pulled U7 thinking that was the issue and also tried 3 different regulators but the issue still remains the same . -0.77 volts
Any ideas what to check
It will produce +- rail voltage
I cannot get it to produce the positive regulated voltage it’s suppose to be 15 volts I get -0.77 volts .
This is with black probe on middle leg and red probe on the output leg .
I pulled U7 thinking that was the issue and also tried 3 different regulators but the issue still remains the same . -0.77 volts
Any ideas what to check
It has no input. What's the resistance from the center leg of the positive rectifier to leg 1 of the regulator?
Someone replaced the caps at one time and damaged the vias .
I will have to make new connections from the top to the bottom of the board
I will have to make new connections from the top to the bottom of the board