Harman Kardon AVR 170/230, Руководство по обслуживанию

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AMPLIFIER SECTION BIAS ADJUSTMENT
Measurement condition
.No input signal or volume position is minimum.
.Do not adjust at FM/AM.
Standard value
.Ideal current = 48mA (± 5%)
.Ideal DC Voltage = 2
2 . 5 mV (± 5%)
DC VOLTMETER ; Connect to
CN66(FR),CN61(CNT),CN64(SR),CN63(FL), CN
NO.
1
2
3
Surround Left
Surround Right
4
5
Channel
Front Left
Front Right
Center
CN64
22 . 50 mV (± 5%)
2 2 . 50 mV (± 5%)
22 . 50 mV (± 5%)
2 2 . 50 mV (± 5%)
CN66
CN61
CN62
Adjust for Adjustment
2 2 . 50 mV (± 5% ) CN6 3
CN6ͧ CN6͑͑͑͑͑͑͑͑͑͑͑͢ʹN6ͥ͑͑͑͑͑͑͑͑͑ʹN6ͤ͑͑͑͑͑͑͑͑͑͑ʹN62
+
-
DC EVM͑ (AMP PCB
6 2 (SL)
VR86
VR85 VR84 VR82
VR87
Harman Kardon AVR 170 / 230V Service Manual
Page 87 of 114