Read Harman Kardon AVR 137 Service Manual online
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
AVR137/230 Service Manual
Page 80 of 87
AVR 137/230
Click on the first or last page to see other AVR 137 service manuals if exist.