Harman Kardon AVR 235, Service Manual

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AMPLIFIER SECTION BIAS ADJUSTMENT
CUP11651Y ( 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
VR 81
...... ......
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AVR235 harman/kardon