CB3
CB310
CB2
IC1
IC302
IC303
CB6
CB30
1
IC30
1
CB1
IC4
IC2
CB303
IC7
IC305
IC306
CB305
IC6
IC8
POINT
A XL1 (Pin 72 of IC2)
POINT
B XL2 (Pin 6 of IC7)
POINT
C XL301 (Pin 10 of IC305)
1
IC306
(2 pin)
IC306
(1 pin)
2
1
IC306
(2 pin)
IC306
(1 pin)
2
POWER ON
POWER ON
POWER OFF
POINT
D 1 / IC306 (2 pin), 2 / IC306 (1 pin)
A
1
2
D
B
C
MAIN P.C.B.
(Side A)
OPTICAL
COAXIAL
No replacement part available.
サービス部品供給なし
To Loader mechanism unit
AMUTE
M2GND
SPINDLE M+
SPINDLE M-
SLED M+
SLED M-
LIMIT SW
GND
VCC
D-
D+
GND
FG
FL_CS
FL_CLK
D+3.3V
DGND
LED_PDIRECT
LED_/USB2
KEY_1
DGND
FL_DATA
FL_/RST
REM
LED_POWER
LED_/USB1
KEY_0
KEY_2
F-
F+
T+
T-
C
D
MSW
RF
A
B
F
RFGND
Vc
Vcc
E
N.C.
CD_VR
DVD_VR
CD_LD
PD
HFM
N.C.
DVD_LD
LD_GND
+SUB33
232C_RX
232C_TX
OCD_MODE
DGND
+B2
M+7
M1GND
DGND
AGND
D+5
A+5
A-5
P_MUTE
A-5
A+5
AGND
AGND
VOUTL
VOUTR
1
60
21
40
1
3
4
5
20
61
80
1
11
12
36
25
37
5
6
15
10
48
6
4
4
5
41
61
80
1
1
3
21
40
60
20
4
5
24
3
1
1
5
1
20
16
13
1
3
41
1
8
16
9
36
19
1
18
DIGITAL
OUT
OUTPUT
(Writing port)
To Loader mechanism unit
To Loader mechanism unit
CLOSE SW
SPINDLE M+
SPINDLE M-
OPEN SW
GND
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
34
CD-S300
■
PRINTED CIRCUIT BOARDS
• Semiconductor Location
Ref no. Location
D2
E5
D3
E5
D302
E6
D308
F4
IC1
D4
IC2
C5
IC4
C6
IC6
F5
IC7
F5
Ref no. Location
IC8
E5
IC301
G4
IC302
E6
IC303
F6
IC305
E4
IC306
F3
Q1
C4
Q309
F5