11
A-S501/A-S301
A
-S50
1/A
-S30
1
A-S301
A-S501
■
INTERNAL VIEW
■
SERVICE PRECAUTIONS /
サービス時の注意事項
Safety measures
•
S
ome internal parts in this product contain high
voltages and are dangerous.
B
e sure to take safety
measures during servicing, such as wearing insulating
gloves.
•
Note that the capacitors indicated below are
dangerous even after the power is turned off because
an electric charge remains and a high voltage
continues to exist there.
B
efore starting any repair work, connect a discharging
resistor (
5
k
‑
ohms
/
10 W) to the terminals of each
capacitor indicated below to discharge electricity.
The time required for discharging is about
3
0 seconds
per each.
C1
3
4, C1
35
on M
A
IN (1) P.C.
B
.
For details, refer to
“
PRINTED CIRCUIT
B
O
A
RD
S
:
M
A
IN (1) P.C.
B
.
”
.
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。
•
下記のコンデンサには電源を
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（
5
k
Ω
/
10 W
）を下記の各コ
ンデンサの端子間に接続して放電してください。
放電所用時間は各々約
3
0
秒間です。
M
A
IN
（
1
）
P.C.
B
.
の
C1
3
4
、
C1
35
詳しくは “
PRINTED CIRCUIT
B
O
A
RD
S
：
M
A
IN
（
1
）
P.C.
B
.
” を参照してください。
a
M
A
IN (
8
)
b
M
A
IN (2)
c
FUNCTION (4)
d
M
A
IN (
3
) (R model)
e
DI
G
IT
A
L
f
M
A
IN (
6
)
g
FUNCTION (1)
h
FUNCTION (2)
i
FUNCTION (
3
)
j
M
A
IN (
5
)
k
M
A
IN (1)
l
M
A
IN (4)
m
POWER TR
A
N
S
FORMER
n
OPER
A
TION (7)
o
OPER
A
TION (4)
p
OPER
A
TION (
3
)
q
OPER
A
TION (1)
r
OPER
A
TION (2)
s
OPER
A
TION (
6
)
t
OPER
A
TION (
5
)
Top view
Front view
1
3
8
9
2
n
o
p
q
4
5 6
7
s
t
k
j
l
m
r
Summary of Contents for A-S301
Page 4: ...4 A S501 A S301 A S501 A S301 REAR PANELS A S501 U model A S501 R model A S501 T model A S501 ...
Page 5: ...5 A S501 A S301 A S501 A S301 A S501 A model A S501 B G models A S501 L model ...
Page 6: ...6 A S501 A S301 A S501 A S301 A S501 J model A S301 U model A S301 R model A S301 ...
Page 7: ...7 A S501 A S301 A S501 A S301 A S301 T model A S301 K model A S301 A model ...
Page 8: ...8 A S501 A S301 A S501 A S301 A S301 B G models A S301 L model A S301 J model ...
Page 60: ...60 A S501 A S301 MEMO MEMO ...
Page 90: ...91 A S501 A S301 A S501 A S301 MEMO ...
Page 91: ...A S501 A S301 ...
