8
MX-D1
MX-D1
■
SERVICE PRECAUTIONS
/
サービス時の注意事項
1. 安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、
絶縁性の手袋を使用するなどの安全対策を行ってください。
・ C196、C197、C198、C199、C222、C223には電源
をOFFにした後も電荷が残り、高電圧が維持されており危険で
す。
修理作業前に放電用抵抗(5kΩ/10W)を下記の端子間に接続
して放電してください。放電所用時間は約3 0 秒間です。
(Lch、Rchに各4箇所あります。)
1. Safety measures
• Some internal parts in this product contain high voltages
and are dangerous. Be sure to take safety measures
during servicing, such as wearing insulating gloves.
• Note that C196, C197, C198, C199, C222 and C223
are dangerous even after the power is turned off because
an electric charge remains and a high voltage continues
to exist there.
Before starting the service work, connect discharging
resistors (5 k-ohms/10 W) to the terminals indicated in
the figure below to discharge electricity. The time
required for discharging is about 30 seconds. (at 4
locations for Lch and Rch, each)
C217
R272
TP304
TP302
TP301
TP303
IC129
C223
C222
C199
C197
C198
C196
C191
D134
D135
D137
D139
D138
D136
C190
T101
5 k-ohms
10W
5 k-ohms
10W
5 k-ohms
10W
5 k-ohms
10W
MAIN P.C.B.