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Adjust as per following when AVR was replaced.
Condition
1. 60 Hz at no load
2. Turn the voltage selector located in the front panel to “MAX” position.
3. Dial the VR4 that locates in the printed circuit to the middle.
Criterion: (U-W, 1-phase):255±2V
Otherwise
, adjust the VR1 volume until it shows 255±2V.
<Position of the VR1 & VR4 volume>