Xtant X1001

[S Merlington]

Q325 was defective..

Replaced it when tryin to power the amp up the power led lights and the low Impedance light is also lit..

Led 406 and 407 are also lit up..


All outputs test fine..

With the blck probe on pin 5 and red probe on Pin 8 of the 3120's
1 of them i get 20.8 volts the other 1 i get 0.1 volts


Any ideas where to start?

 

[S Merlington]

Ok i did somemore checking..

Low impedance light is still lit..

I get -18.8 volts on all op-amps but i dont get the positive voltage is this normal for this amp??

If not does anyone know what the board location is for the positive regulator ?

 

[Perry Babin]

Do you have positive 15v on both ends of one of the SMD inductors (marked 221k) near the yellow transformer (near the speaker terminals)?

 

[kfx5050]

hey Perry babin I just check on my amp the 22k near the yellow transformer I only have 6 volt dc on both side. that's with the black probe on the ground on the amp and the red probe touching bout side of the 221k and the other side -6 volts