Yamaha MCR-E320 Servise Manual page 22

A B
CRX-E320/NX-E700
Q Q
3 7 6 3 1 5 1 5 0
1
2
FRONT/SMPS (3) P.C.B. (Top view)
AC IN
3
T E
L 1 3 9 4 2 2 9 6 5 1 3
4
5
6
5 k-ohms
10W
w w w
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.
• C901 on the FRONT/SMPS (3) P.C.B. are dangerous, for a high voltage is retained there even after the power is turned
off.
Before the repair work, connect a resistor about 5 k-ohms/10 W between terminals of the capacitor to force discharge.
7
After the repair work, also perform force discharge by connecting a resistor about 5 k-ohms/10 W between terminals of
the capacitor.
22
C D
x a o
y
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E http://www.xiaoyu163.com F G
Q Q
3 7 6
安全対策
u 1 6 3
・ 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。
.
・ FRONT/SMPS （3） P.C.B.のC901には電源OFF後も高電圧が維持されるため危険です。
修理前に5 kΩ/10 W程度の抵抗をコンデンサの端子間に接続して強制放電してください。
また、修理後も同様に5 kΩ/10 W程度の抵抗をコンデンサの端子間に接続して強制放電してください。
http://www.xiaoyu163.com
H I
2 4
8 9 9
CONNECTOR P.C.B.
(Top view)
MAIN (1)
(BN93)
3 1 5 1 5 0 8 9 2
MAIN (1)
(CN92)
m
c o
J
2
8 9 9
4 9 8 2 9 9