Xtant 1001 D

mike49504

Member
2006-09-22 8:32 am
I recieved this amp in for repair.

I believe the orginal power supply fets were the Z44's . The IRFZ48's are whats in it now. Will theese still work with the 10 ohm gate resistors?

Also Q3 thru Q10 and Q11 thru Q17 were also Z44's (orginals) and have been replaced with Z48's .

And last Q25 was IRL54 which now has a IRF540A in the amp.

Wondering if the Z48's will work in this amp since someone tryed repairing it before and within 15 mins in got stuck in protection mode and i have shorted transistors all thru the board now.
 

mike49504

Member
2006-09-22 8:32 am
Back to this amp ,

I replaced the 8 outputs back to irfz44's and the gate resistors are new.

I havent messed with the bias or dc offset pots.

Upon powering it up the blue light will come on for a few secs the shut off and amp will start drawing excessive current.

Any ideas on what to check?