Yamaha MFC2 Service Manual Page 20

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A-S2000
20
ヘッドフォンDCオフセット調整
条件
電源を入れてから5秒間以上経過後に調整を始めま
す。
無入力信号
無負荷
DC オフセット調整
CB504のDC電圧が-2.0∼+2.0mVになるように、
VR202(Lch)/VR102(Rch)を調整します。 (Fig. 2)
Headphone DC Offset Adjustment
Condition
Start adjustment 5 sec or more after the power is
turned on.
No input signal.
Non loaded condition
DC offset adjustment
Adjust VR202 (Lch)/VR102 (Rch) so that the DC volt-
age of the CB504 becomes -2.0 to +2.0mV. (Fig. 2)
Fig. 2
(Side A)
MAIN (1) P.C.B.
R ch
VR102
VR102
VR202
VR202
Front side
(Side A)
MAIN (2) P.C.B.
L ch
(Side A)
FRONT (2) P.C.B.
R ch L ch
PHONES
DC -2.0 to +2.0 mV
FRONT (2) P.C.B.
L ch
R ch
DC -2.0 to +2.0 mV
PHONES
R ch
MAIN (2) P.C.B.
VR102VR202
L ch
MAIN (1) P.C.B.
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