Printed Circuit Board - Yamaha YST-MS30 Service Manual

A B
YST-MS30/YST-MS35D
PRINTED CIRCUIT BOARD (Foil side)
1
• Subwoofer
Semiconductor Location
P.C.B. AMP(1)
Ref. No. Location
D2 D5
D3 C1
D4 D2
D5
C2
SUBWOOFER
D6 C2
D7 C2
D201 C3
IC1 C5
IC2 E1
IC3 C5
+
–
IC4 D2
2
IC5 D5
W3
IC6 D2
WH
IC7 C2
IC8
C2
IC201
C3
IC202 C3
Q1 G2
Q2 G2
Q3 D5
Q4 C1
Q5 D1
Q6 C1
Q201 C4
3
W201
RE
4
5
16
6
C
IC7, 8 : uPC4570HA
W4
RE
TDA7370BV
USB
INPUT
3 4
2 1
UDA1321PS/N201
E
VDD
IC202 : M24C02-W-BN6
W202
RE
To To
Satellite Satellite
Speaker Speaker
Unit (Right) Unit (Left)
JK5 JK3
TO RIGHT 1 2 TO LEFT
SPEAKER INPUT INPUT SPEAKER
9
E
Rch 5 2 1 3
Lch
8 7 4 6
E
RE
IC1, 3 : uPC4570HA
P.C.B. AMP(2)
D E
YST-MS30 YST-MS35D
IC6 : uPC4570HA IC2 : uPC4570HA
W7
OL
OR
SWI
VCC
E
BIAS
LSP+
RSP+
PSW1
W5
RE
+B
E
W6
WH
P.C.B. AMP(4)
YST-MS35D
only
From
AC
adaptor
JK4
BASS DC 15V
W5
RE
IC5 :
NJM78L06A
W6
WH
17
F
• Satellite Speakers
Satellite Speaker Unit (Right)
P.C.B. AMP(3)
RE
R
From
Subwoofer
JK5
Satellite Speaker Unit (Left)
L
From
Subwoofer
JK3
G H
SATELLITE
Rch
W1
W2
SATELLITE
Lch