Inter-m POP-120A - Electrical Adjustment Procedure; Amp Section; Off Set Voltage; Idle Current

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AMP SECTION
1. OFF SET VOLTAGE
A. Setting
Set the master volume controls minimum.
B. Connection
2. IDLE CURRENT
A. Setting
Set the master volume controls minimum.
B. Connection
C. Adjustment
Control OFFSET until voltmeter is the “0” position.
C. Adjustment
Adjust IDLE so that the current through the R56, R57, R58, R59 become 10 milliampere.
When that voltage across the IDLE2 TO IDLE3 becomes 10 millivolt, the current bocomes
10 milliampere.