Harman Kardon AVR507 Limited Edition Service Manual page 62

AMPLIFIER SECTION BIAS ADJUSTMENT
Measurement condition
. No input signal or volume position is minimum.
Standard value.
. Ideal current = 48mA (
. Ideal DC Voltage = 25.92mV (
CN81
VR87
DC VOLTMETER..............Connect to CN81,CN82,CN83,CN84,CN85,CN86,CN87
NO.
1
2
3
4
5
6
7
±
5%)
±
5%)
CUP11651X (BIAS PCB)
CN82
VR86
Channel
Front Left
Front Right
Center
Surround Left
Surround Right
Surround Back Left
Surround Back Right
...... ......
VR82
Adjust for
25.92mV (±5%)
25.92mV (±5%)
25.92mV (±5%)
25.92mV (±5%)
25.92mV (±5%)
25.92mV (±5%)
25.92mV (±5%)
CN86 CN87
VR81
Adjustment
VR83
VR84
VR85
VR86
VR87
VR82(ONLY AVR230/330)
VR81(ONLY AVR330)