W4
CB6
W5
W1
W4
W3
CB5
CB2
MAIN (1)
(Side A)
MAIN (3)
(Side A)
MAIN (2)
(Side A)
WH
RE
BE
GY
WH
OR
DRIVER
SUBWOOFER
SP+
SP-
NF
+15
-15
SP
PDET
SIG2
SPRYON
OCDET
SGND
E2
LIMT
5 k-ohms
10 W
5 k-ohms
10 W
RE
RE
BL
AC IN
SUB-
TRANSFORMER
REV
NORM
PHASE
HIGH CUT
150Hz
50Hz
INPUT1 / OUTPUT
FROM AMPLIFIER/
TO SPEAKERS
INPUT2 / NORMAL
INPUT3 /
LFE
L / MONO / R
+
-
-
+
RL
T, B, G, L, H models
U, T, A, B, G, L, H, J models
R, S models
+15 -15
SP
PDET
SIG2
SPRYON
OCDET
SGND
E2
LIMT
-B2
+B2
GND
LEDR
LEDG
ASE
+5V
+15D
-15D
SIG
SW
SGND
VOL
LED_R
ACRYON
LED_G
ASE
SW
+15
IN2
-B2
+B2
GND
ACRYON
E2
+5V
ACRYON
E2
+5V
T, B, G, L, H models
U, R, A, S, J models
T, B, G, L, H models
U, R, A, S, J models
T, B, G, L, H models
(U, T, A, B, G, L, H, J models)
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
24
NS-SW300/NS-SW200
NS-SW200
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 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. Before 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 30 seconds per each.
C85, C86 on MAIN (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 30 秒間です。
MAIN(1)P.C.B. の C85、C86
• Semiconductor Location
Ref no. Location
D14
D5
D21
F3
D31
E3
D32
E3
D33
E3
D34
D3
D35
D3
D36
D3
D37
D2
D40
D2
IC4
C5
Q30
C3
Q31
D3
Q32
C3
Ref no. Location
Q33A
C2
Q33C
E2
Q35A
E3
Q35C
D3
Q40
D2
Q42
D2
Q43A
C2
Q43C
E2
Q45A
E2
Q45C
D2
Q50
F3
Q51
I5
Q52
I5
Summary of Contents for NS-SW300
Page 4: ... REAR PANELS U model R model T model K model NS SW300 4 NS SW300 NS SW200 NS SW300 NS SW200 ...
Page 5: ...B G models A model L H models S model 5 NS SW300 NS SW200 NS SW300 NS SW200 ...
Page 6: ...NS SW200 U model R model J model 6 NS SW300 NS SW200 NS SW300 NS SW200 ...
Page 7: ...A model T model B G models L H models 7 NS SW300 NS SW200 NS SW300 NS SW200 ...
Page 46: ...NS SW300 NS SW200 ...