Harman Kardon BRUKSANVISNING AVR 255, Service Manual

Page: 131 / 144

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%)
DC VOLTMETER ; Connect to
CN66(SL),CN61(CEN),CN64(SR),CN63(FL),CN65(SBL
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 CN61 CN64 CN63 CN65 CN67 CN62
+
-
DC EVM
CUP12026* (MAIN PCB)
(AVR254,255,354,355)),CN62(FR),CN67(SBR)
VR81
VR82 VR83 VR84 VR85 VR87 VR86
harman/kardon AVR 255/230 Service Manual
Page 131 of 144