Waht is difference between hafler 9270 and 9290?

[kang]

hello

Is anyone there who can explain this difference?
Because My hafler 9290 has somthing wrong but I could not fine the circuit except 9270 circuit.

Or where can I get 9290 circuit?

Many thanks

Kang

 

[kang]

Is anyone knows it?
or has serfvice manual?

Please help me.

 

[tonyleeusa]

I have circuit diagram for Hafler 9290. Please see my post: Hafler 9290 blew line fuse.