Yamaha AS2000BL - Headphone DC Offset Adjustment; DC Offset Adjustment

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.