Harman Kardon AVR 145 (serv.man3) Service Manual ▷ View online
harman/kardon
AVR 145/230 service manual
Page 125 of 135
harman/kardon
AVR 145/230 service manual
Page 126 of 135
BLOCK DIAGRAM
20060810_AVR145 WIRING.sch-1 - Fri Oct 13 11:20:20 2006
harman/kardon
AVR 145/230 service manual
Page 127 of 135
AMPLIFIER SECTION BIAS ADJUSTMENT
Measurement condition
.No input signal or volume position is minimum.
.No input signal or volume position is minimum.
Standard value
.Ideal current = 48mA (± 5%)
.Ideal DC Voltage = 25.92mV (± 5%)
.Ideal current = 48mA (± 5%)
.Ideal DC Voltage = 25.92mV (± 5%)
CUP11911Y (MAIN PCB)
DC VOLTMETER ; Connect to
CN66(SL),CN61(CEN),CN64(SR),CN63(FL),CN65(SBL/SL(AVR132,144,145)),CN62(FR),CN67(SBR)
CN61
CN65
CN65
Adjust for
Adjustment
25.92mV (± 5%)
CN64
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
25.92mV (± 5%)
CN63
CN62
CN62
Channel
Front Left
Front Right
Center
Surround Left
Surround Right
4
5
5
NO.
1
2
3
2
3
CN61
VR32
CN64
VR33
CN63
VR34
CN65
VR35
CN62
VR36
+
-
DC EVM
harman/kardon
AVR 145/230 service manual
Page 128 of 135