JL A1800

[mbates14]

I got a JL A1800 that had a totally blown up power supply.

I rebuilt the power supply, outputs test fine, not shorted. But the amp just cycles/pulses and R53 gets hot very fast.

D2 and D5 light up, but thats it.

any ideas?

 

[mbates14]

nevermind.. it just pulls a shitload of startup current. My supply is limited to 4 AMPS for testing....

 

[Perry Babin]

R53 feeds power to the power supply drivers.