Read Harman Kardon AVR 230 Service Manual online
AMPLIFIER SECTION BIAS ADJUSTMENT
CUP11
651
X (
BIAS
PCB)
Measurement condition
. No input signal or volume position is minimum.
Standard value.
. Ideal current = 48mA (
±
5%)
. Ideal DC Voltage = 2
5
.
92
mV (
±
5%)
DC VOLTMETER..............Connect to CN
81
,CN
82
,CN
83
,CN
8
4,CN
8
5
,CN86,CN87
NO.
Channel
Adjust for
Adjustment
1 Front Left 2
5
.
92
mV (±5%) VR
83
CN
82
VR
86
2 Front Right 2
5
.
92
mV (±5%)
2
5
.
92
mV (±5%)
2
5
.
92
mV (±5%)
2
5
.
92
mV (±5%)
VR
84
CN
86
VR
82
3 Center VR
85
4 Surround Left VR
86
CN
81
VR
87
5 Surround Right VR
87
VR
81
CN
87
6
7
Surround Back Left
Surround Back Right
2
5
.
92
mV (±5%)
2
5
.
92
mV (±5%)
VR
82(ONLY AVR230/330)
VR
81(ONLY AVR330)
......
......
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