Toshiba SD-2800 Service Manual - Page 5

Printed Wiring Board And Schematic Diagram

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3. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM CN801 Board-in VCC+9.0V 1 GND 2 VCC-9.0V 3 PO SIG 4 E+5.0V 5 E+6.0V 6 VDD+5.0V 7 VDD+3V 8 GND 9 GND 10 M+8V 11 MGND 12 VKK-31V 13 F-(0.0) 14 F+(3.7V) 15 16P(10P+6P) Press-fit 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 9 GND 10 GND 11 M+8V 12 MGND 13 VKK-31V 14 F- 15 F+ CN701 EU02 POWER Mechanism 23 22 21 20 19 18 17 16 15 14 PUH 13 12 11 10 9 8 7 6 5 4 3 2 1 W501 FFC 1mm 23P VCC RF LD2 MON2 VOR2 GND VREF VCC F0 E0 A0 D0 C0 B0 F+ TT+ FVCC GND LD MON VOR TRAY W502 FFC 1.25mm 6P 6 GND 5 LDMP 4 TOPN 3 LDMN 2 TCLS 1 TRAY 8 7 6 MOTOR 5 4 3 2 1 W503 FFC 1mm 8P FMN FMP GND LMT DMN DMP VCC DMFG 1 2 3 4 5 6 7 8 9 10 11 12 CN501 13 14 15 16 17 18 19 20 21 22 23 1 2 3 CN502 4 5 6 1 2 3 4 5 CN503 6 7 8 EU01 MAIN CN601 GND 1 5V 2 TXD 3 CTS 4 RXD 5 RTS 6 CN603 13 F- 12 F+ 11 VKK-31V VKK-31V 3 10 GND 9 DSTBX DSTBX 5 8 DSPCKX DSPCKX 6 7 DSPS0 DSPS0 7 6 DSPSI DSPSI 8 5 DSPRST DSPRST 9 4 HMUTE HMUTE 10 3 E+5V 2 PWRCNT PWRCNT 12 1 RSTOX RSTOX 13 F- F+ 2 GND 4 1 EU04 POWER SW 1 CN105 2 3 4 W102 WIRE 2mm AWG26#2651 4P GND E+5V POWLED POWKEY 1 2 3 CN102 4 ENTER SW 1 2 3 4 5 6 7 NC LEFT COMMON(GND) DOWN ENTER RIGHT UP 1 2 3 4 CN103 5 6 7 W602 FFC 1mm 13P CN101 EU03 FRONT E+5V 11 Fig. 3-3-1

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3. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
VCC
RF
LD2
MON2
VOR2
GND
VREF
VCC
F0
E0
A0
D0
C0
B0
F+
T-
T+
F-
VCC
GND
LD
MON
VOR
GND
LDMP
TOPN
LDMN
TCLS
TRAY
GND
5V
TXD
CTS
RXD
RTS
FMN
FMP
GND
LMT
DMN
DMP
VCC
DMFG
VCC+9.0V
GND
VCC-9.0V
PO SIG
E+5.0V
E+6.0V
VDD+5.0V
VDD+3V
GND
GND
M+8V
MGND
VKK-31V
F-(0.0)
F+(3.7V)
VCC+9.0V
GND
VCC-9.0V
PWON
E+5.0V
E+6.0V
VDD+5.0V
VDD+3V
GND
GND
M+8V
MGND
VKK-31V
F-
F+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
6
5
4
3
2
1
1
2
3
4
5
6
1
2
3
4
5
6
16P(10P+6P)
Press-fit
W501
FFC
1mm
23P
W502
FFC
1.25mm
6P
W503
FFC
1mm
8P
W102
WIRE
2mm
AWG26#2651
4P
PUH
TRAY
MOTOR
CN501
CN502
CN503
CN701
CN101
CN603
CN102
CN105
CN801
Board-in
CN601
EU02
POWER
EU04 POWER SW
ENTER SW
EU03 FRONT
EU01 MAIN
Mechanism
F-
F+
VKK-31V
GND
DSTBX
DSPCKX
DSPS0
DSPSI
DSPRST
HMUTE
E+5V
PWRCNT
RSTOX
F-
F+
VKK-31V
GND
DSTBX
DSPCKX
DSPS0
DSPSI
DSPRST
HMUTE
E+5V
PWRCNT
RSTOX
1
2
3
4
5
6
7
8
9
10
11
12
13
13
12
11
10
9
8
7
6
5
4
3
2
1
W602
FFC
1mm
13P
GND
E+5V
POWLED
POWKEY
1
2
3
4
1
2
3
4
CN103
NC
LEFT
COMMON(GND)
DOWN
ENTER
RIGHT
UP
1
2
3
4
5
6
7
1
2
3
4
5
6
7
Fig. 3-3-1