Harman Kardon AVR 3550HD, Service Manual

Page: 28 / 80

AMPLIFIER SECTION BIAS ADJUSTMENT
Measurement condition
.No input signal or volume position is minimum.
Standard value
.Ideal current = 48mA (± 5%)
.Ideal DC Voltage = 25.92mV (± 5%)
CUP12026 (MAIN PCB)
DC VOLTMETER ; Connect to
CN66(SL),CN61(CEN),CN64(SR),CN63(FL),CN65(SBL),CN62(FR),CN67(SBR)
NO.
1
2
3
Surround Left
Surround Right
4
5
Channel
Front Left
Front Right
Center
Adjust for Adjustment
25.92mV (± 5%)
CN65
CN64
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
CN63
CN62
CN61
CN66
CN67
6 Surround Back Left 25.92mV (± 5%)
25.92mV (± 5%)
Surround Back Right 7
CN66
VR81
CN61
VR82
CN64
VR83
CN63
VR84
CN65
VR85
CN67
VR87
CN62
VR86
+
-
DC EVM
28
AVR3550HD
harman/kardon