Toshiba SD-P1850SN Service Manual page 14

1 2
MAIN BOARD CIRCUIT DIAGRAM
A
(FLASH & DAC & KEY CIRCUIT DIAGRAM)
MEMAD[ 1 9:0]
MEMDA[15:0]
B
MEMWR-
C
RESET
DVD_ R ESET
FLASH VCC
D
R467
0
MEMCS0-
E
MEMRD-
Flash speed <= 70 nS.
If plan to use 90ns
Flash, it needs to be
verified by s/w.
F
When using INTEL FLASH:
R161=0 ohm, R160=NC
When using SST FLASH:
G
R160=0 ohm, R161=NC
Default is SST mode.
3 4
MEMAD15
1 48
A15 A16
MEMAD14
2 47
A14 BYTE# VCCQ
MEMAD13
3 46
A13 GND
MEMAD12
4 45
A12 DQ15
MEMAD11
5 44
A11 DQ7
MEMAD19 MEMAD10
6 43
A10 DQ14
MEMAD9
7 42
A9 DQ6
MEMAD8
8 41
A8 DQ13
R463 0R
9 40
NC A19 DQ5
10 39
A20 DQ12
11 38
WE# DQ4
12 37
RP# VCC
13 36
VPP N C DQ11
14 35
N C
WP# DQ3
15 34
RY/B Y#
A19 DQ10
MEMAD18
16 33
A18 DQ2
MEMAD17
17 32
A17 DQ9
MEMAD7
18 31
A7 DQ1
MEMAD6 19 30
A6 DQ8
MEMAD5
20 29
A5 DQ0
MEMAD4
21 28
A4 OE#
R466 MEMAD3
22 27
A3 GND
MEMAD2
23 26
4K7 A2 CE#
MEMAD1
24 25
A1 A0
N403
MX29LV160ABTC-70
DVD 5V
SPIF
5 6 7
MEMAD15
MEMAD14
MEMAD13
MEMAD12
MEMAD11
MEMAD10
MEMAD9
MEMAD8
MEMAD16
MEMAD18
MEMAD17
MEMAD7
MEMAD6
MEMAD5
MEMAD4
MEMAD3
MEMAD2
MEMAD1
FLASH VCC
MEMDA15 MEMAD16
MEMDA7
MEMDA14
MEMDA6 MEMDA15
MEMDA13 MEMDA7
MEMDA5 MEMDA14
MEMDA12 MEMDA6
MEMDA4 MEMDA13
MEMDA5
MEMDA11 MEMDA12
MEMDA3 MEMDA4
MEMDA10 MEMDA11
MEMDA2 MEMDA3
MEMDA9 MEMDA10
MEMDA1 MEMDA2
MEMDA8 MEMDA9
MEMDA0 MEMDA1
MEMRD- MEMDA8
MEMDA0
FLASHCS- MEMRD-
MEMAD0 MEMAD0
MEMCS1
R451 R450
NC 4K7
DVD3V3
L402
BGH2012B601LT
L511
BGH2012B601LT
C507 C505
100N 100N C506
VD511 22P
2SD601AR R509
62
R89 R503 R532
33 56 39
R502
100
8 9
45
C/C
44
C/C
43
C/C
42
C/C
41
C/C
40
C/C
XS405
39
C/C
FPL0.5B-SMT-45
38
C/C
37
C/C
36
C/C
35
C/C
34
C/C
33
C/C
32
C/C
31
C/C
30
C/C
29
C/C
28
C/C
27
C/C
26
C/C
25
C/C
24
NC
23
LD/VCC
22
V20
21
GND
20
F
19
E
18
CD/DVDSW
17
RF
16
C/C
15
D/D
14
B/B
13
A/A
12
VD/CD
11
VRDVD
10
MD
9
LD/CD
8
GND
7
LD/DVD
6
NC
5
VCC
4
F-
3
T+
2
T-
1
F+
FLASH VCC
C403
10UF/16V CB31
100N
CB33 CB32
0.1uF 100N
COX
VD512
STZ6.2N
OPTICAL
10