kicker kx800.4 stuck in protect mode

[ivkata]

so I'm going over some old amps i have here .this is kicker kx800.4 that originally had bad power supply fets -1 on each side so i removed them all and installed irfz44n instead of the irfz46n to do further testing . Amp stays in protect -there is no gate voltage on the the power supply ,the rail voltage is 5 volts . I have not tested for audio out due to low rail voltage

i think the op amp is getting the unit in protection. I have tested all outputs and they are good. The unit dosent draw extensive current

here is the test of both ic
TL494CN

Pin 1: 1.1
Pin 2: 3.1
Pin 3: 4.4
Pin 4: 0.02
Pin 5: 1.4
Pin 6: 3.1
Pin 7: 0
Pin 8: 10.4
Pin 9: 0
Pin 10: 0
Pin 11: 11
Pin 12: 12
Pin 13: 4.7
Pin 14: 4.7
Pin 15: 4.7
Pin 16: 11.5

i think its the voltage on pin 16 getting the unit in protect

the op amp lm324n


Pin 1: 0
Pin 2: 3
Pin 3: 2.2
Pin 4: 12
Pin 5: 1.8
Pin 6: 3.1
Pin 7: 0
Pin 8: 11
Pin 9: 3.1
Pin 10: 0.3
Pin 11: 0
Pin 12: 0.35
Pin 13: 0.35
Pin 14: 0

I think its the op amp sending my amp in protect .any ideas

 

[Perry Babin]

Remove the rectifiers. Does the amp still go into protect mode?

 

[ivkata]

Remove the rectifiers. Does the amp still go into protect mode?

removed the rectifiers and the amp is still in protection .i just remembered that actually only 1 side of the power supply had a bad transistor

 

[Perry Babin]

I think the LM324 is defective.

 

[ivkata]

i was thinking the same perry ,but i don't have them here and i wanted advice from a pro
will order few now ,thanks for the quick reply