ALIGNMENT PROCEDURES
I. INITIAL ADJUSTMENT (No load connected)
A. OUTPUT OFFSET VOLTAGE
1. Connect a DC Millivoltmeter to L Channel speaker output terminals.
2. Turn unit ON and adjust VR21 (100 ohms) to get the reading of 0V+/-30mV.
3. Connect the DC Millivoltmeter to R Channel speaker output terminals and adjust
VR11 (100ohms) to get a reading of 0V+/-30mV.
B. IDLING CURRENT
1. Connect a DC Millivoltmeter to TP1 and TP2 and adjust VR
1
2 (300 ohms) for
3-5mV reading on meter.
2. Connect the DC Millivoltmeter to TP3 and TP4 and adjust VR
2
2 (300 ohms) for
3-5mV reading on meter.
3. Leave power on for a minimum of 5 minutes.
II. FINAL ADJUSTMENT
Repeat procedure A and B for offset voltage and idling current alignment respectively.
VR22
VR21
VR11
VR12
TP
4
TP
3
TP
2
TP
1
www.freeservicemanuals.info
11/24/2018
Digitized in Heiloo the Netherlands
Not for sale!
