Printed Wiring Board And Schematic Diagram - Toshiba SD-2550A Service Manual

3. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM

VCC+9.0V
GND
VCC-9.0V
PO SIG
E+5.0V
E+6.0V
CN801
VDD+5.0V
Board-in
VDD+3V
GND
GND
M+8V
MGND
VKK-31V
F-(0.0)
F+(3.7V)
EU02
POWER
EU04 POWER SW
CN105
ENTER SW
16P(10P+6P)
Press-fit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Mechanism
W501
FFC 1mm 23P
23
VCC
22 RF
21
LD2
20
MON2
19 VOR2
18
GND
17
VREF
16 VCC
15
F0
14
E0
13 A0
PUH
12
D0
11
C0
10 B0
9 F+
8
T-
7 T+
6 F-
5
VCC
4 GND
3 LD
2
MON
1 VOR
W502
FFC 1.25mm 6P
6 GND
5 LDMP
4 TOPN
TRAY
3 LDMN
2 TCLS
1 TRAY
W503
FFC 1mm 8P
8 FMN
7 FMP
6 GND
5 LMT
MOTOR
4 DMN
3 DMP
2 VCC
1 DMFG
W102
WIRE 2mm AWG26#2651 4P
1 GND
2 E+5V
3 POWLED
4 POWKEY
1 NC
LEFT
2
3 COMMON(GND)
4 DOWN
ENTER
5
6 RIGHT
7 UP
1
VCC+9.0V
2 GND
3 VCC-9.0V
4
PWON
5 E+5.0V
6 E+6.0V
7
VDD+5.0V
8 VDD+3V
CN701
9 GND
10
GND
11 M+8V
12 MGND
13
VKK-31V
14 F-
15 F+
1
2
3
4
5
6
7
8
9
10
EU01 MAIN
11
CN501
12
13
14
15
16
17
18
19
20
21
22
23
1
2
3
CN502
4
5
6
1
2
3
4
CN503
5
6
7
8
W602
FFC 1mm 13P
1
2
CN102
3
4
EU03 FRONT
1
2
3
CN103
4
5
6
7
3-4
1
GND
5V 2
3
TXD
CN601
4
CTS
RXD 5
6
RTS
CN603
CN101
Fig. 3-3-1