Amplifier Section Bias Adjustment - Harman Kardon AVR 139/230 Service Manual

harman/kardon
Model
Rated voltage
Measurement condition: No input signal or volume position is minimum.
Standard value
* CUP12186Z ( MAIN PCB )
CN66
VR86
FR-CH

AMPLIFIER SECTION BIAS ADJUSTMENT

: AVR139/230, AVR141/230, AVR142/230
: AC 230V 50 Hz
: 1) Ideal current : 48mA (± 5%)
2) Ideal DC Voltage : 25.92mV (± 5%)
CN61
VR85 VR84
CNT-CH
DV
+ -
VR ADJUST
CN64 CN63
VR82
SR-CH FL-CH
No. Channel
1 FR-CH 25.92mV (± 5%)
2 CNT-CH 25.92mV (± 5%)
3 SR-CH 25.92mV (± 5%)
4 FL-CH 25.92mV (± 5%)
5 SL-CH 25.92mV (± 5%)
AVR 139-141-142/230 Service Manual
Date 2009.04.28
JM.Kang
CN62
VR87
SL-CH
Adjust Adjustment
CN66
CN61
CN64
CN63
CN62
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