RF BD15001

[Hexhclass]

hi all

This amp came in with half of the output fets burn.I remove them and power the amp with a limiter.The led on the red and black wire is on,is it for protect?

On the center leg of the rectifiers i get about 38.04 v - and +. Shouldn't it be more that that?

On the twisted red and black wire i get 68.45v

 

[DREW028]

The LED next to the RCA inputs is the protection LED. Power LED is under the RF logon on top of the amp.

 

[Hexhclass]

ok well this amp is not in protect,but i think the rail voltage is to low

 

[Perry Babin]

You should read approximately 100v DC across the red and black wires.

If you're using a limiter and the input voltage is significantly lower than normal, that could account for the low rail voltage.

 

[Hexhclass]

The output FETs irf 3415 and irf6215 can i used irf3710z in place of one of them
for test?

 

[Perry Babin]

No.

 

[brandes.cm]

Check u21, that fails quite often.

rorrim eht ni kool