Service manual

FO-IS125N
6 – 3
3. Memory Block (2/12)
(1-6D,2-1A)
(1-6D,10-4B)
(2-1D)
(2-1D)
(2-1D)
(2-1D) (2-1D)
(1-6D) (1-6D)
(1-6D)
(1-6D,2-6A)
(2-6A)
(2-5A)
(2-4A)
(2-4A)
(2-3A)
(1-4A)
(1-4A) (1-4A) (1-4A) (1-4A)
(1-4A)
(1-6A)
(1-3A)
(1-6D,10-4B)
(1-6D,10-4B)
(1-6A)
(1-6A)
(1-6A)
(1-6E,5-5A,6-3B)
(1-2B,4-5E)
A A
B B
C C
D D
E E
F F
G G
H H
6 6 5 5 4 4 3 3 2 2 1 1
SDRD8 SDRD12 SDRD13 SDRD9 SDRD10 SDRD14 SDRD15 SDRD11
SDRD7 SDRD3 SDRD2 SDRD0 SDRD6 SDRD1 SDRD5 SDRD4
SDRA2
SDRA4 SDRA9 SDRA12
SDRA0 SDRA1
SDRA5
SDRA10 SDRA8 SDRA3
SDRA11 SDRA6 SDRA7
+3.3V
+3.3V
+3.3V
+3.3V DG
DG
DG
DG
DG
+3.3V
DG
V4D
+3.3V
DG
+3.3V
DG
DG
+3.3V
DG
+3.3V
DG
DG
+3.3V
DG
DG +3.3V
DG
SDRD[15:0]
nROMCS
nFLCS1
SDRLDQM
nSDRWE
nSDRCAS nSDRRAS SDRCLKE
SDRCLK SDRUDQM
SDRA[12:0]
SPI_CLK
SPI_MI
SPI_MO
SDRBA0 SDRBA1
nRESET
nMANRES
nFLCS2
nROMCS nFLCS1 nFLCS2
SPI_SS0 SPI0SEL1 SPI0SEL0 SPI0SEL2
nFLCS3 nFLCS4
nFLCS3 nFLCS4
SPI_SS0
Flash-1
Flash-0
/RES
Flash-2
to Flash-0 to Flash-1 to Flash-2 to Flash-3 to Flash-4
Flash-3
Flash-4
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
IC206
SST25VF016B
C211 0.1u
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
IC203
SST25VF016B
C202
0.1u
TP211
C209
0.1u
C205 0.1u
R212 N.M.
C200 0.1u
5
18
7 6
2 3 4
BR201 100x4
C214 0.1u
5
1 8 7 6
2 3 4
BR200
10Kx4
R200 N.M.
VDD
1
DQ0
2
VDDQ
3
DQ1
4
DQ2
5
VSSQ
6
DQ3
7
DQ4
8
VDDQ
9
DQ5
10
DQ6
11
VSSQ
12
DQ7
13
VDD
14
LDQM
15
/WE
16
/CAS
17
/RAS
18
/CS
19
BA0
20
BA1
21
A10/AP
22
A0
23
A1
24
A2
25
A3
26
VDD
27
VSS
28
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A11
35
NC
36
CKE
37
CLK
38
UDQM
39
NC
40
VSS
41
VDDQ
43
DQ9
44
DQ8
42
DQ10
45
VSSQ
46
DQ11
47
DQ12
48
VDDQ
49
DQ13
50
DQ14
51
VSSQ
52
DQ15
53
VSS
54
IC202
256Mbit SDRAM
C206
0.1u
TP206
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
IC200
SST25VF016B (ROM)
A0
1
A1
2
A2
3
O7
7
GND
8
VCC
16
O6
9
O5
10
O4
11
O3
12
O2
13
O1
14
O0
15
E1
4
E2
5
E3
6
IC207
74VHC138FT
C210
27p
TP203
TP200
R202 0
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
IC201
SST25VF016B
C201
0.1u
R206 10K
C215 0.1u
R201
100
TP205
C213
1u
TP208
CE#
1
SO
2
WP#
3
VSS
4
SI
5
SCK
6
HOLD#
7
VDD
8
IC204
SST25VF016B
TP212
R204
4.7K
R213 2.2K
M/R
1
SUB
2
VCC
5
GND
3
VOUT
4
IC205
N.M.
(BD45385G)
TP201
VDD
3
GND
1
OUT
2
IC208
PST421A380N
TP209
TP213
C207
0.1u
C204 0.1u
C212 0.1u
TP202
TP210
TP204
C208
0.1u
C203
0.1u
TP207
FLASH ROM
FLASH(DATA1)
FLASH(DATA2)
FLASH(DATA3)
FLASH(DATA4)
EDS2516AFTA-75-E
Memory Block
2/12