+++Need schematic for Ampeg V3 Japanese version+++

[tortoto]

My Ampeg V3 japanese Version
sound is broke it not loud
I need schematic for repair it
or someone known why it is ...please comment
...very thank

[tortoto]

...Thank for everybody who come to read this post
but nobody not to know or not to have this schematic
I find this ploblem of this amp yesterday ...
and i fix it success...
output transformer of amp it shortturn at primary
thank everybody in webboard