Sharp MX-B381 / MX-B401 (serv.man9) Service Manual ▷ View online
MX-B381/B401 CIRCUIT DIAGRAM AND PARTS LAYOUT 2 – 22
SD_DQM_1
SD_DQM_0
SD_DQ5
SD_DQ6
SD_DQ7
SD_DQ8
SD_DQ9
SD_CS
SD_DQ13
SD_DQ12
SD_DQ11
SD_DQ10
SD_DQ15
SD_DQ14
SD_A3
SD_A9
SD_A13
SD_A11
SD_A10
SD_A0
SD_A14
SD_A4
SD_CAS
SD_A1
SD_A2
SD_DQ0
SD_A7
SD_A5
SD_A12
SD_RAS
SD_A8
SD_DQ2
SD_A6
SD_DQ1
SD_WE
SD_DQ4
SD_DQ3
SD_CKE
SD_CLK
SD_DQM_3
SD_DQM_2
SD_CS
SD_A13
SD_A14
SD_CAS
SD_RAS
SD_WE
SD_CKE
SD_CLK
SD_DQ21
SD_DQ22
SD_DQ23
SD_DQ24
SD_DQ25
SD_DQ29
SD_DQ28
SD_DQ27
SD_DQ26
SD_DQ31
SD_DQ30
SD_DQ16
SD_DQ18
SD_DQ20
SD_DQ17
SD_DQ19
SD_A3
SD_A9
SD_A11
SD_A10
SD_A0
SD_A4
SD_A1
SD_A2
SD_A7
SD_A5
SD_A12
SD_A8
SD_A6
SD_DQ[31:0]
SD_A[14:0]
SD_A[14:0]
SD_DQ[31:0]
3R3V_ECO
3R3V_ECO
3R3V_ECO
3R3V_ECO
DGND
DGND
DGND
DGND
DGND
DGND
H1_I2C_SDA [19]
H1_I2C_SCL [19]
LKIN [30]
GPO_256EEP_WP [16]
CP621
C309
0.1uF(B)
R305
2.2KJ
2.2KJ
IC25
K4S641632
BA0
20
VDDQ
3
BA1
21
DQ1
4
A10/AP
22
DQ2
5
A0
23
VSSQ
6
DQ3
7
VDD
14
DQML
15
WE
16
CAS
17
VDD
1
DQ0
2
VDD
27
DQ7
13
A3
26
VSSQ
12
A2
25
DQ6
11
A1
24
DQ5
10
VDDQ
9
CS
19
RAS
18
DQ4
8
VSS
28
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A11
35
A12
36
CKE
37
CLK
38
DQMH
39
NC
40
VSS
41
DQ8
42
VDDQ
43
DQ9
44
DQ10
45
VSSQ
46
DQ11
47
DQ12
48
VDDQ
49
DQ13
50
DQ14
51
VSSQ
52
DQ15
53
VSS
54
C307
0.1uF(B)
266
.2KJ
C308
0.1uF(B)
C304
0.1uF(B)
R267
2.2KJ
C305
0.1uF(B)
AS1
A_AT24C256B-PU
CP618
IC23
K4S641632
BA0
20
VDDQ
3
BA1
21
DQ1
4
A10/AP
22
DQ2
5
A0
23
VSSQ
6
DQ3
7
VDD
14
DQML
15
WE
16
CAS
17
VDD
1
DQ0
2
VDD
27
DQ7
13
A3
26
VSSQ
12
A2
25
DQ6
11
A1
24
DQ5
10
VDDQ
9
CS
19
RAS
18
DQ4
8
VSS
28
A4
29
A5
30
A6
31
A7
32
A8
33
A9
34
A11
35
A12
36
CKE
37
CLK
38
DQMH
39
NC
40
VSS
41
DQ8
42
VDDQ
43
DQ9
44
DQ10
45
VSSQ
46
DQ11
47
DQ12
48
VDDQ
49
DQ13
50
DQ14
51
VSSQ
52
DQ15
53
VSS
54
CP620
C306
0.1uF(B)
CP619
R268
2.2KJ
C310
0.1uF(B)
IC26
8PIN DIP SOCKET (EEPROM)
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
3
3
2
2
1
1
D
C
B
A
12/33 (14)
MX-B381/B401 CIRCUIT DIAGRAM AND PARTS LAYOUT 2 – 23
H_TXP
H_TXN
H_TXN
H_TXP
H_TXN
H_TXP
H_TXN
H_TXP
S_CLKP_OUT
S_CLKN_OUT
S0_TX
S0_TX
UB_PPO
S0_RX
S0_RX
S1_TX
S1_TX
UB_AGND
UB_PVDDFIL
UB_RREF
USB_CLK
UB_VBU
UB_CLK_OUT
UB_OCI
UB_RPU
1R0V_ECO
1R8VA_EC_HST
1R8V_EC1
1R8V_EC_HST
1R0V_ECO
1R0V_EC_HSTCORE
1R8VA_EC_HPX
1R8V_EC1
1R0V_EC_HPXCORE
1R8V_EC_HPX
3R3V_ECO
3R3V_ECO
3R3V_ECO
3R3V_ECO
3R3VA_EC_HUSB
3R3V_ECO
3R3V_ECO
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DG
DG
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
HDD_PCIE_CLKP
[5]
HDD_PCIE_CLKN
[5]
CP132
C337
10uF(2012:F)
R273
1J
1J
GP9
C350
0.1uF(B)
X4
EG-2102CA 100MHz
OE
1
N.C.
2
GND
3
OUT
4
/OUT
5
VCC
6
GP13
C342
10uF(2012:F)
PCI Express I/F
SATA I/F
USB I/F
HDD ASIC
IC24B
S_SPXCLK_I
H26
S_CLKP_I
L25
S_CLKN_I
L26
S_REFSEL_I (PD)
K22
S_SRREN_I (PU)
L23
S_F50SEL_I (PD)
R23
PE_CLKP_I
R2
PE_CLKN_I
R1
PE_CORE_VDD
G4
PE_CORE_VDD
K4
PE_CORE_VDD
K5
PE_CORE_VDD
N4
PE_VDD_TIO
G3
PE_VDD_TIO
K3
PE_VDD_TIO
N3
PE_VDD_A
R3
PE_VSS_A
P3
S_VDD
P24
S_VDD
P23
S_VDD_TIO
M24
S_VDD_TIO
M23
VSS
U26
VSS
T25
VSS
T24
VSS
R24
VSS
N24
VSS
N23
VSS
K26
VSS
T26
S_VDD_A
K25
S_VSS_A
L24
UB_USBCLK_I
A18
UB_USBCLK_SEL_I (PD)
B18
UB_ENDIAN_SEL_I (PD)
E17
UB_USB_PCLK_I
C18
UB_PCLK_SEL_I (PD)
C17
UB_THMODE_I (PD)
E19
UB_AVDD
C13
UB_AVSS
B12
UB_PVSS
C14
UB_PVDDFIL
B13
UB_COM
A12
UB_VD331
D16
UB_VD332
D15
UB_GND1
C15
UB_GND2
A14
UB_GND3
C16
UB_RREF
A13
DPH_IO
L17
DMH_IO K16
DMF_IO L15
DPF_IO
K14
PE_TXP_0_O F2
PE_TXP_1_O H2
PE_TXP_2_O L2
PE_TXP_3_O N2
PE_TXN_0_O G2
PE_TXN_1_O J2
PE_TXN_2_O M2
PE_TXN_3_O P2
PE_RXP_0_I E1
PE_RXP_1_I G1
PE_RXP_2_I K1
PE_RXP_3_I M1
PE_RXN_0_I F1
PE_RXN_1_I H1
PE_RXN_2_I L1
PE_RXN_3_I N1
S0_TXP_O
P26
S0_TXN_O
P25
S0_RXP_I R25
S0_RXN_I R26
S1_TXP_O
M26
S1_TXN_O
M25
S1_RXP_I N25
S1_RXN_I N26
UB_DPH_IO A16
UB_DMH_IO B16
UB_RSDPH_IO K17
UB_RSDMH_IO L16
UB_PPON_O D17
UB_OCI_I
A19
UB_DPF_IO B15
UB_DMF_IO A15
UB_RSDPF_IO L14
UB_RSDMF_IO K15
UB_RPU_O B14
UB_VBUS_I C19
VSS
E2
VSS
F3
VSS
H3
VSS
H4
VSS
J3
VSS
J4
VSS
L3
VSS
L4
VSS
J1
VSS
K2
VSS
M3
VSS
M4
VSS
P1
VSS
P4
C765
0.1uF(B)
C767
0.1uF(B)
C351
0.01uF(B)
C325
10uF(2012:F)
C333
10uF(2012:F)
GP14
L28
BLM18PG121SN1(1608)
CP123
CP206
RJ7
0J
CP120
C335
0.01uF(B)
C353
10uF(2012:F)
GP10
C344
0.01uF(B)
L18
BLM18PG121SN1(1608)
C317
0.1uF(B)
R2
R2
CP130
L22
BLM18PG121SN1(1608)
L25
BLM18PG121SN1(1608)
CP121
C768
0.1uF(B)
C338
0.1uF(B)
CP125
R279
1J
C311
10uF(2012:F)
CP204
CP203
C354
1000pF(B)
C345
0.1uF(B)
CP202
C323
0.1uF(B)
CP137
C316
10uF(2012:F)
R276
1J
+ C348
47uF/16V(MVL/F60)
L20
BLM18PG121SN1(1608)
RJ3
0J
R282
22J
R2
C343
0.1uF(B)
C349
10uF(2012:F)
R291
1.6KF
CP207
C326
0.01uF(B)
C766
0.1uF(B)
CP131
CP622
L15
BLM18PG121SN1(1608)
C334
0.1uF(B)
CP143
R2
L17
BLM18PG121SN1(1608)
C339
0.01uF(B)
C324
0.1uF(B)
X5
SG-310SCF_100ppm(C)_30MHz
ST
1
GND
2
OUT
3
VDD
4
C318
0.1uF(B)
5
5
4
4
3
3
D
C
B
A
MFPC PWB (HDD ASIC: PCI Express / SATA / USB)
MX-B381/B401 CIRCUIT DIAGRAM AND PARTS LAYOUT 2 – 24
H_TXP0
H_TXN0
H_TXN1
H_TXP1
H_TXN2
H_TXP2
H_TXN3
H_TXP3
S0_TXP
S0_TXN
SATA0_TX_P
SATA0_TX_N
_PPON
SATA0_RX_N
S0_RXN
S0_RXP
SATA0_RX_P
S1_TXP
S1_TXN
UB_DP_DEVICE
UB_DN_DEVICE
UB_VBUS_DEVICE
_VBUS
_OCI
_RPU
5V_IN
3R3V_ECO
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
DGND
SH_RX0P [11]
SH_RX0N [11]
SH_RX2N [11]
SH_RX3N [11]
SH_RX2P [11]
SH_RX3P [11]
SH_RX1P [11]
SH_RX1N [11]
SH_TX0P [11]
SH_TX0N [11]
SH_TX1P [11]
SH_TX1N [11]
SH_TX2P [11]
SH_TX2N [11]
SH_TX3P [11]
SH_TX3N [11]
PNL_USB_DN [30]
PNL_USB_DP [30]
USB_VBUS [30]
SATA1_TX_N [34]
SATA1_TX_P [34]
SATA1_RX_P [34]
SATA1_RX_N [34]
MT_USB_RTN_P [30]
MT_USB_RTN_N [30]
CN4
6SAT07P-328B-B5
1
1
2
2
3
3
4
4
5
5
6
6
7
7
FG
1
FG
FG
2
FG
CP521
C347
0.1uF(B)
C320
0.1uF(B)
R288
1.5KJ
CP142
C332
0.01uF(B)
L26
BLM18PG121SN1(1608)
BLM18PG121SN1(1608)
CN6
UBR23-4K2200
VBUS
1
D-
2
D+
3
GND
4
FG
FG
1
FG
FG
2
CP133
D15
HZM6.2Z4MWA
A
K1
K2
R280
1KJ
R289
10KJ
CN5
UAR27-4K5J00
VBUS
1
D-
2
D+
3
GND
4
FG
FG
1
FG
FG
2
CP257
C329
0.01uF(B)
R286
39J
C341
0.01uF(B)
R287
39J
R278
10KJ
+ C336
47uF/16V(MVL/F60)
R277
47KJ
C313
0.1uF(B)
AS13
A_HDD_SATA80G
C328
0.01uF(B)
CP127
C340
10uF(2012:F)
L19
BLM18PG121SN1(1608)
R284
15KJ
C327
0.01uF(B)
C315
0.1uF(B)
D16
1SS355
1SS355
A
K
C331
0.01uF(B)
IC27
BD6512F-E2
CTRLA
1
FLAGA
2
FLAGB
3
CTRLB
4
OUTB
5
GND
6
VDD
7
OUTA
8
CP126
D18
1SS355
1SS355
A
K
R281
39J
C312
0.1uF(B)
R290
15KJ
R285
15KJ
CP128
C314
0.1uF(B)
R315
47KJ
C352
10uF(2012:F)
CP358
C322
0.1uF(B)
C321
0.1uF(B)
D17
HZM6.2Z4MWA
A
K1
K2
R283
39J
CP360
C330
0.01uF(B)
R275
nanoSMDC110F(3216)
L24
BLM18PG121SN1(1608)
BLM18PG121SN1(1608)
C319
0.1uF(B)
3
3
2
2
1
1
D
C
B
A
13/33 (15)
MX-B381/B401 CIRCUIT DIAGRAM AND PARTS LAYOUT 2 – 25
LB_A4
LB_A8
LB_A9
LB_A10
LB_A11
LB_D0
LB_D1
LB_D2
LB_D3
LB_D4
LB_D5
LB_D6
LB_D7
LB_D8
LB_D9
LB_D10
LB_D11
LB_D12
LB_D13
LB_D14
LB_D15
LB_A1
LB_A2
LB_A3
LB_A5
LB_A7
LB_A6
3R3V_ECO
3R3V_ECO
DGND
DGND
DGND
LB_D[15:0]
[6,18,25,26,27]
LB_A[23:0]
[6,18,25,26,27]
ASIC_OE
[6,18]
ASIC_WE
[6,18]
DMA_REQ0_HDD
[6]
DMA_ACK0_HDD
[6]
LB_WAIT_HDD
[6]
EXLCS6_HDD
[6]
HDD_INT_N
[6]
DMA_REQ1_HDD
[6]
DMA_ACK1_HDD
[6]
GPI_IMG_RYBY
[21]
GPI_RYBY_BOOTPROG
[25]
GPI_RYBY_PCLBUMON
[25]
GPI_RYBY_FAXSTD
[26]
GPI_RYBY_FAXEXT
[26]
GPI_nFAN_CNCT
[30]
LCDSEL0
[30]
LCDSEL1
[30]
LCDSEL2
[30]
GPI_nCNCT_FAX1
[30]
GPI_nCNCT_FAX2
[29]
GPO_256EEP_WP
[14]
R309
2.2KJ
R321
2.2KJ
HDD ASIC
IC24C
LB_ADDR_EX
A10
LB_ADDR_EX
C12
LB_ADDR_EX
D13
LB_ADDR_1_
D10
LB_ADDR_2_
A8
LB_ADDR_3_
E10
LB_ADDR_4_
D11
LB_ADDR_5_
E11
LB_ADDR_6_
B9
LB_ADDR_7_
C10
LB_ADDR_8_
A9
LB_ADDR_9_
B10
LB_ADDR_10
C11
LB_ADDR_11
D12
LB_DATA_0_
C5
LB_DATA_1_
C6
LB_DATA_2_
D7
LB_DATA_3_
B6
LB_DATA_4_
A5
LB_DATA_5_
C7
LB_DATA_6_
D8
LB_DATA_7_
E8
LB_DATA_8_
B7
LB_DATA_9_
A6
LB_DATA_10
C8
LB_DATA_11
D9
LB_DATA_12
E9
LB_DATA_13
B8
LB_DATA_14
A7
LB_DATA_15
C9
LB_CS_IN_N
B5
LB_EXCS_IN
D6
LB_EXCS_O
D4
LB_EXCS_O
C4
LB_EXCS_O
C3
LB_EXCS_O
A3
LB_EXCS_O
D5
LB_EXCS_O
B4
LB_EXCS_O
B3
LB_EXCS_O
A4
LB_OE_N_I (
E4
LB_WE_N_I (
B2
LB_WAIT_N_
C2
LB_INTR_N_
E5
LB_DMA_RE
D2
LB_DMA_RE
C1
LB_DMA_AC
D1
LB_DMA_AC
F5
LB_DMA_TC
F4
LB_DMA_TC
D3
GP_IO_0_IO
G23
GP_IO_1_IO
F25
GP_IO_2_IO
E26
GP_IO_3_IO
G24
GP_IO_4_IO
H23
GP_IO_5_IO
H22
GP_IO_6_IO
G25
GP_IO_7_IO
F26
GP_IO_8_IO
H24
GP_IO_9_IO
J23
GP_IO_10_IO
J22
GP_IO_11_IO
H25
GP_IO_12_IO
G26
GP_IO_13_IO
J24
GP_IO_14_IO
K23
GP_IO_15_IO
K24
VD_LSCLK_I
AF6
VD_HSYNCK
AE8
VD_VSYNCK
AC6
VD_VSYNCC
AC9
VD_VSYNCM
AD5
VD_VSYNCY
AB9
R310
2.2KJ
R326
2.2KJ
CP587
CP587
R307
2.2KJ
R328
X_2.2KJ
R322
2.2KJ
R313
X_2.2KJ
R312
X_2.2KJ
R325
2.2KJ
R323
2.2KJ
R324
2.2KJ
R311
X_2.2KJ
R327
2.2KJ
5
5
4
4
3
3
D
C
B
A
MFPC PWB (HDD ASIC: Local BUS/UART/GPIO)
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