Hello,
I have two carvin Class D Amplifiers. That will not power up.

However, the IEC thru the switch and fuse both read 120VAC.

I have researched that these Amps and they have a "protection mode circuit" but none of the LEDs light up. Which has me suspecting the rectifier circuit.

I have cleaned and Deox all of the ribbon cable connections (typically sends it into protection mode).

Since I am very new to Class D Amplifier repair. I could use some guidance.

 

Break down the amp into small pieces.

Measure the power supply voltages

 

@ronsimpson THANK YOU for the guidance.