Harman Kardon AVR 141/230 - Amplifier Section Bias Adjustment

AMPLIFIER SECTION BIAS ADJUSTMENT
Model : AVR139/230, AVR141/230, AVR142/230 Date 2009.04.28
Rated voltage : AC 230V 50 Hz JM.Kang
Measurement conditio
n
: No input signal or volume position is minimum.
Standard value : 1) Ideal current : 48mA (± 5%)
2) Ideal DC Voltage : 25.92mV (± 5%)
* CUP12186Z ( MAIN PCB )
No. Channel Adjust Adjustment
1 FR-CH 25.92mV (± 5%) CN66
2 CNT-CH 25.92mV (± 5%) CN61
3 SR-CH 25.92mV (± 5%) CN64
4 FL-CH 25.92mV (± 5%) CN63
5 SL-CH 25.92mV (± 5%) CN62
FR-CH CNT-CH SR-CH FL-CH SL-CH
VR86 VR85 VR84 VR82 VR87
CN66 CN61 CN64 CN63 CN62
VR ADJUST
+-
DV
harman/kardon
AVR 139-141-142/230 Service Manual
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