Sharp AL-1661CS Service Manual page 177

C
_SDRAM_DATA[15:0] (8-D4) (8-E4) (8-E3)
M_DATA0
_DATA1
_DATA2
_DATA3
_DATA4
_DATA5
_DATA6
_DATA7
_DATA8
_DATA9
_DATA10
_DATA11
_DATA12
_DATA13
_DATA14
_DATA15
_DQMA0
_DQMB0
_DQMA1
_DQMB1
(8-C4) (8-E4) (8-E3)
M_CS0_L
ROM_CS_L
SDRAM_WE_L
SDRAM_CAS_L
SDRAM_RAS_L
SDRAM_ADDR[12:0] (8-E4) (8-D3)
SDRAM_BANK[1:0] (8-D4) (8-D2) (8-D1)
_SDRAM_CLK
_SDRAM_CLK
5 33J _SDRAM_CKE
6 4.7KJ
OA3.3V
L10
ZJSR5101-102TA
+
C278 C279 C280 C281 C272
0.1U 0.1U 0.1U 0.1U 47U/16V
C288 C289 C290
0.1U 0.1U 0.1U
C297 C298 C299
0.1U 0.1U 0.1U
T
R238
4.7KJ
C
D
(8-C3) (8-D3) (8-D2) (8-E4) SDRAM_ADDR[12:0]
(8-C3) (8-D2) SDRAM_BANK[1:0]
_SDRAM_DATA[15:0]
_SDRAM_DQMB1
VCC3
_SDRAM_DATA8
_SDRAM_DATA9
R329
(8-D4)
10kJ
/RESET0
(8-D2)
(8-C3) (8-E4) (8-D4)
SDRAM_ADDR[12:0]
(8-C3) (8-D4) SDRAM_BANK[1:0]
(8-C3) _SDRAM_CLK
VCC3
C401
N.M.
_SDRAM_DATA0
_SDRAM_DATA1
_SDRAM_DATA2
_SDRAM_DATA3
_SDRAM_DATA4
_SDRAM_DATA5
_SDRAM_DATA6
_SDRAM_DATA7
_SDRAM_DATA8
_SDRAM_DATA9
_SDRAM_DATA10
_SDRAM_DATA11
_SDRAM_DATA12
_SDRAM_DATA13
_SDRAM_DATA14
_SDRAM_DATA15
D
AL-1661CS CIRCUIT DIAGRAM 13 - 16
IC38
SDRAM_ADDR1 25 29
A0 IO0
SDRAM_ADDR2 24 31
A1 IO1
SDRAM_ADDR3 23 33
A2 IO2
SDRAM_ADDR4 22 35
A3 IO3
SDRAM_ADDR5 21 38
A4 IO4
SDRAM_ADDR6 20 40
A5 IO5
SDRAM_ADDR7 19 42
A6 IO6
SDRAM_ADDR8 18 44
A7 IO7
SDRAM_ADDR9 8 30
A8 IO8
SDRAM_ADDR10 7 32
A9 IO9
SDRAM_ADDR11 6 34
A10 IO10
SDRAM_ADDR12 5 36
A11 IO11
SDRAM_BANK0 4 39
A12 IO12
SDRAM_BANK1 3 41
A13 IO13
SDRAM_WE_L 2 43
A14 IO14
SDRAM_CAS_L 1 45
A15 IO15/A-1
SDRAM_RAS_L 48
A16
_SDRAM_DQMB0 17
A17
R330 0J 16
A18
R327 0J 9 13
A19 VCCW
R328 0J 10
A20
_SDRAM_DQMA1 11
WE
_SDRAM_DQMA0 28
OE
ROM_CS_L 26 37
CE VCC
RY_BY
15
RY/BY
47
BYTE
14 46
WP/ACC GND
12 27
RESET GND
Flash ROM
Flash ROM
Model Vendor/Type
E-Sort Model 4Mbit LH28F400BVE-BL85
FAX Model
8Mbit LH28F800BJE-PBTL90
(US)
FAX Model
16Mbit LH28F160BJE-BTL90
(except US)
IC39
SDRAM_ADDR0
23 2
A0 DQ0
SDRAM_ADDR1
24 4
A1 DQ1
SDRAM_ADDR2
25 5
A2 DQ2
SDRAM_ADDR3
26 7
A3 DQ3
SDRAM_ADDR4
29 8
A4 DQ4
SDRAM_ADDR5
30 10
A5 DQ5
SDRAM_ADDR6
31 11
A6 DQ6
SDRAM_ADDR7
32 13
A7 DQ7
SDRAM_ADDR8
33 42
A8 DQ8
SDRAM_ADDR9
34 44
A9 DQ9
SDRAM_ADDR10
22 45
A10 DQ10
SDRAM_ADDR11
35 47
A11 DQ11
SDRAM_ADDR12
36 48
A12 DQ12
SDRAM_BANK0 20
50
BA0 DQ13
SDRAM_BANK1 21 51
BA1 DQ14
53
DQ15
_SDRAM_CS0_L 19
CS
SDRAM_WE_L 16
WE
SDRAM_CAS_L 17
CAS
SDRAM_RAS_L 18 49
RAS VDDQ
43
VDDQ
_SDRAM_CLK 38 9
CLK VDDQ
_SDRAM_CKE 37 3
CKE VDDQ
_SDRAM_DQMA0 15 27
LDQM VDD
_SDRAM_DQMA1 39 14
UDQM VDD
1
VDD
52
VSSQ
46
VSSQ
12
VSSQ
6
VSSQ
54
VSS
41
VSS
40 28
N.C VSS
K4S561632D
VCC3
BR115 1 8 10kJX4
2 7
3 6
4 5
BR116 1 8 10kJX4
2 7
3 6
4 5
BR117 1 8 10kJX4
2 7
3 6
4 5
BR118 1 8 10kJX4
2 7
3 6
4 5
E
_SDRAM_DATA[15:0] (8-C4) (8-D4) (8-E3)
_SDRAM_DATA0
_SDRAM_DATA1
_SDRAM_DATA2
_SDRAM_DATA3
_SDRAM_DATA4
_SDRAM_DATA5
_SDRAM_DATA6
_SDRAM_DATA7
SDRAM_ADDR[12:0] (8-C3) (8-D3) (8-D4)
VCC3
R217
SDRAM_ADDR0
0J
VCC3
C257
0.1U
R327/R328/R330 ; OPEN
R327/R328/R330 ; OPEN
R327/R328/R330 ; 0J
_SDRAM_DATA[15:0] (8-C4) (8-D4) (8-E4)
_SDRAM_DATA0
_SDRAM_DATA1
_SDRAM_DATA2
_SDRAM_DATA3
_SDRAM_DATA4
_SDRAM_DATA5
_SDRAM_DATA6
_SDRAM_DATA7
_SDRAM_DATA8
_SDRAM_DATA9
_SDRAM_DATA10
_SDRAM_DATA11
_SDRAM_DATA12
_SDRAM_DATA13
_SDRAM_DATA14
_SDRAM_DATA15
VCC3
VCC3
C268 C269 C270 C271
0.1U 0.1U 0.1U 0.1U
C332 C333 C334
0.1U 0.1U 0.1U
C264
NM
_SDRAM_CS0_L
C265
47p
_SDRAM_CKE
E
8/14
4
C256
NM
3
2
1