Harman Kardon AVR 3550 Service Manual page 4

AMPLIFIER SECTION BIAS ADJUSTMENT
Measurement condition
. No input signal or volume position is minimum.
Standard value.
. Ideal current = 48mA (
. Ideal DC Voltage = 21.12mV (
CN64
VR64
DC VOLTMETER..............Connect to CN61, CN62, CN63, CN64, CN65
NO.
1
2
3
4
5
±
5%)
±
5%)
CUP11517X (MAIN PCB)
CN61
VR61
Channel
Front Left
Front Right
Center
Surround Left
Surround Right
CN63
VR63
VR62
Adjust for
21.12mV (±5%)
21.12mV (±5%)
21.12mV (±5%)
21.12mV (±5%)
21.12mV (±5%)
CN62 CN65
VR65
Adjustment
VR61
VR62
VR63
VR64
VR65