Read Panasonic DP-MB251CX / DP-MB311EU / DP-MB311JT / KX-MB2571RU (serv.man2) Service Manual Supplement online
10
DP-MB251CX/DP-MB311EU/DP-MB311JT/KX-MB2571RU
16.2.2. Main Board(2)
C
E
B
A
D
F
3
6
4
2
5
8
7
DDR_D[6]
DDR_A[14]
DDR_D[7]
DDR_D[8]
DDR_D[9]
DDR_D[10]
DDR_D[15]
DDR_D[11]
DDR_D[14]
DDR_D[12]
DDR_D[13]
DDR_D[13]
DDR_D[12]
DDR_D[11]
DDR_A[0]
DDR_D[10]
DDR_D[9]
DDR_A[1]
DDR_D[8]
DDR_A[2]
DDR_D[7]
DDR_A[3]
DDR_D[6]
DDR_A[4]
DDR_D[5]
DDR_A[5]
DDR_D[4]
DDR_A[6]
DDR_D[3]
DDR_A[7]
DDR_D[2]
DDR_A[8]
DDR_D[1]
DDR_A[9]
DDR_A[10]
DDR_A[11]
DDR_A[12]
DDR_A[13]
DDR_A[14]
DDR_A[15]
DDR_A[13]
DDR_A[12]
DDR_A[11]
DDR_A[10]
DDR_A[9]
DDR_A[8]
DDR_A[7]
DDR_A[6]
DDR_A[5]
DDR_A[9]
DDR_A[4]
DDR_A[14]
DDR_A[15]
DDR_A[8]
DDR_A[7]
DDR_A[11]
DDR_A[4]
DDR_A[3]
DDR_A[6]
DDR_A[2]
DDR_A[0]
DDR_A[1]
DDR_A[0]
DDR_A[2]
DDR_A[15]
DDR_A[13]
DDR_A[10]
DDR_D[0]
DDR_D[2]
DDR_A[12]
DDR_D[1]
DDR_D[3]
DDR_D[5]
DDR_A[5]
DDR_D[4]
DDR_A[15]
DDR_A[1]
DDR_D[6]
DDR_A[14]
DDR_D[14]
DDR_A[3]
DDR_D[13]
DDR_D[14]
DDR_D[12]
DDR_D[15]
DDR_D[11]
DDR_D[0]
DDR_D[10]
DDR_A[0]
DDR_A[1]
DDR_A[2]
DDR_A[3]
DDR_D[9]
DDR_A[4]
DDR_D[8]
DDR_A[5]
DDR_D[7]
DDR_A[6]
DDR_D[15]
DDR_A[7]
DDR_A[8]
DDR_A[9]
DDR_A[10]
DDR_A[11]
DDR_A[12]
DDR_D[0]
DDR_A[13]
DDR_D[1]
DDR_D[2]
DDR_D[3]
DDR_D[4]
DDR_D[5]
IC404
A0
N3
A1
P7
A2
P3
A3
N2
A4
P8
A5
P2
A6
R8
A7
R2
A8
T8
A9
R3
A10/AP
L7
A11
R7
A12/*BC
N7
NC3
L1
NC1
J1
NC2
J9
BA0
M2
BA1
N8
BA2
M3
*CS
L2
*RAS
J3
*CAS
K3
*WE
L3
*RESET
T2
ZQ
L8
ODT
K1
*CK
K7
CK
J7
CKE
K9
DML
E7
DMU
D3
NC4
L9
DQL0
E3
DQL1
F7
DQL2
F2
DQL3
F8
DQL4
H3
DQL5
H8
DQL6
G2
DQL7
H7
DQU0
D7
DQU1
C3
DQU2
C8
DQU3
C2
DQU4
A7
DQU5
A2
DQU6
B8
DQU7
A3
DQSL
F3
*DQSL
G3
DQSU
C7
*DQSU
B7
VDD1
B2
VDD2
D9
VDD3
G7
VDD4
K2
VDD5
K8
VDD6
N1
VDD7
N9
VDD8
R1
VDD9
R9
VDDQ1
A1
VDDQ2
A8
VDDQ3
C1
VDDQ4
C9
VDDQ5
D2
VDDQ6
E9
VDDQ7
F1
VDDQ8
H2
VDDQ9
H9
VREFCA
M8
VREFDQ
H1
VSS1
A9
VSS2
B3
VSS3
E1
VSS4
G8
VSS5
J2
VSS6
J8
VSS7
M1
VSS8
M9
VSS9
P1
VSS10
P9
VSS11
T1
VSS12
T9
VSSQ1
B1
VSSQ2
B9
VSSQ3
D1
A13
T3
VSSQ4
D8
VSSQ5
E2
VSSQ6
E8
VSSQ7
F9
VSSQ8
G1
VSSQ9
G9
NC6
T7
NC5
M7
IC405
A0
N3
A1
P7
A2
P3
A3
N2
A4
P8
A5
P2
A6
R8
A7
R2
A8
T8
A9
R3
A10/AP
L7
A11
R7
A12/*BC
N7
NC3
L1
NC1
J1
NC2
J9
BA0
M2
BA1
N8
BA2
M3
*CS
L2
*RAS
J3
*CAS
K3
*WE
L3
*RESET
T2
ZQ
L8
ODT
K1
*CK
K7
CK
J7
CKE
K9
DML
E7
UDM
D3
NC4
L9
DQL0
E3
DQL1
F7
DQL2
F2
DQL3
F8
DQL4
H3
DQL5
H8
DQL6
G2
DQL7
H7
DQU0
D7
DQU1
C3
DQU2
C8
DQU3
C2
DQU4
A7
DQU5
A2
DQU6
B8
DQU7
A3
DQSL
F3
*DQSL
G3
DQSU
C7
*DQSU
B7
VDD1
B2
VDD2
D9
VDD3
G7
VDD4
K2
VDD5
K8
VDD6
N1
VDD7
N9
VDD8
R1
VDD9
R9
VDDQ1
A1
VDDQ2
A8
VDDQ3
C1
VDDQ4
C9
VDDQ5
D2
VDDQ6
E9
VDDQ7
F1
VDDQ8
H2
VDDQ9
H9
VREFCA
M8
VREFDQ
H1
VSS1
A9
VSS2
B3
VSS3
E1
VSS4
G8
VSS5
J2
VSS6
J8
VSS7
M1
VSS8
M9
VSS9
P1
VSS10
P9
VSS11
T1
VSS12
T9
VSSQ1
B1
VSSQ2
B9
VSSQ3
D1
A13
T3
VSSQ4
D8
VSSQ5
E2
VSSQ6
E8
VSSQ7
F9
VSSQ8
G1
VSSQ9
G9
A14
T7
NC5
M7
IC401
NC
1
CTL
2
GND
4
IN
5
OUT
3
FLG
DDR_ODT0
002:1B;002:5C
+1.5V
CL408
DDR_NCLK1
002:5D
VTT
DDR_DQS0
002:5D;002:9B
DDR_NRESET
002:5C;002:7C
VREF
DDR_DM1
002:5C;002:5C
DDR_ODT0
002:1B;002:5D
DDR_NWE
002:1B;002:5C;002:7C
+3.3V
DDR_NRAS
002:1B;002:5C;002:7C
DDR_ODT0
002:5D;002:5C
DDR_BA0
002:1A;002:5B;002:7B
DDR_BA2
002:5C;002:5B;002:7B
DDR_NCAS
002:1B;002:5C;002:7C
DDR_ODT1
002:5D;002:7C
+1.5V
USBH0_PWR
001:2D
DDR_D[15-0]
002:7A;002:9A
DDR_DM1
002:5C;002:7C
DDR_A[15-0]
002:5B;002:6B;002:7B
DDR_DQS0
002:5D;002:7B
CN401
1
FG
2
SG
3
D+
4
D-
5
VBUS
DDR_A[15-0]
002:2A;002:5B;002:7B
DDR_DM0
002:5C;002:7C
+1.5V
L800
2
3
41
nRST_WLAN
001:2A
FG
DDR_NCS0
002:1A;002:5D
USBH1_PWR
001:2D
DDR_DQS1
002:7B;002:9B
+1.5V
+3.3V
DDR_CKE0
002:1B;002:5C
DDR_NCS1
002:5D;002:7C
DDR_NRESET
002:5C;002:7C
L401
2
3
41
DDR_NRAS
002:5C;002:5C;002:7C
DDR_CLK0
002:5D
Q401
4.7k
B
C
+1.5V
DDR_NDQS1
002:7B;002:9B
VTT
DDR_BA0
002:1A;002:5C;002:5B
DDR_DM0
002:5C;002:7C
+1.5V
DDR_BA2
002:1A;002:5B;002:7B
DDR_BA1
002:1A;002:5C;002:5B
DDR_NCLK1
002:7C
DDR_NDQS0
002:7B;002:9B
CL410
DDR_BA1
002:1A;002:5B;002:7B
DDR_NCLK0
002:5D
CL411
DDR_NCS1
002:1A;002:5D
DDR_CLK1
002:7C
DDR_BA1
002:5C;002:5B;002:7B
DDR_BA1
002:1A;002:5C;002:7B
+1.5V
DDR_A[15-0]
002:2A;002:5B;002:6B
VREF
2
0
4
N
C
1
2
3
4
7
8
5
6
DDR_NDQS0
002:5D;002:7B
DDR_NCLK0
002:5C
DDR_ODT1
002:1B;002:5D
CN800
1
DG
2
D+
3
D-
'*
4
5
+3.3V
001:2D
USBH0_PERR
DDR_NDQS0
002:5D;002:9B
VTT
DDR_DM0
002:5C;002:5C
+1.5V
DDR_NWE
002:1B;002:5C;002:7C
DDR_BA0
002:5C;002:5B;002:7B
DDR_BA2
002:1A;002:5C;002:5B
+1.5V
DDR_BA0
002:1A;002:5C;002:7B
DDR_CLK0
002:5C
VREF
DDR_NRESET
002:5C;002:5C
+5VD
DDR_DQS1
002:5D;002:7B
DDR_DQS1
002:5D;002:9B
DDR_NWE
002:1B;002:5C;002:5C
DDR_NCAS
002:1B;002:5C;002:7C
L400
2
3
41
DDR_NCS1
002:1A;002:7C
DDR_D[15-0]
002:5A;002:9A
DDR_CLK1
002:5D
DDR_NWE
002:5C;002:5C;002:7C
VTT
DDR_NRAS
002:1B;002:5C;002:5C
+1.5V
DDR_A[15-0]
002:2A;002:6B;002:7B
DDR_DQS0
002:7B;002:9B
VREF
DDR_NDQS1
002:5D;002:9B
DDR_NCS0
002:1A;002:5C
DDR_D[15-0]
002:5A;002:7A
DDR_CKE1
002:1B;002:5C
DDR_NDQS1
002:5D;002:7B
VREF
DDR_DM1
002:5C;002:7C
DDR_BA2
002:1A;002:5C;002:7B
DDR_NCAS
002:5C;002:5C;002:7C
IC400
1
IO1
2
GND
4
IO3
5
VDD
3
IO2
6
IO4
DDR_CKE0
002:5C;002:5C
DDR_ODT1
002:1B;002:7C
DDR_NCAS
002:1B;002:5C;002:5C
DDR_CKE1
002:5C;002:7C
DDR_CKE0
002:1B;002:5C
CL409
DDR_CKE1
002:1B;002:7C
DDR_NRAS
002:1B;002:5C;002:7C
DDR_NCS0
002:5D;002:5C
FG
C438
1uF
C444
1uF
C437
1uF
C449
1uF
C442
1uF
C426
1uF
C431
1uF
C459
1uF
C417
1uF
C454
10uF
C425
1uF
C446
1uF
C453
1uF
C400
2.2uF
C462
1uF
C421
1uF
C447
1uF
C434
1uF
C418
1uF
C440
1uF
C457
1uF
C436
1uF
C433
1uF
C456
1uF
C422
1uF
C445
1uF
C451
1uF
C458
1uF
C420
1uF
C461
1uF
C448
1uF
C463
1uF
C419
1uF
C423
1uF
C432
1uF
C428
1uF
C441
1uF
C430
1uF
C411
1uF
C450
1uF
C464
0.1uF
C443
1uF
C455
1uF
C439
1uF
C429
1uF
C812
SF
C435
1uF
C452
10uF
C414
0.1uF
C460
1uF
C427
1uF
C424
1uF
D400
NC
( )
D401
NC
( )
L403
R413
33
R414
33
R457
R478
33
R433
33
R438
33
R402
6.8
R412
33
R480
33
R445
33
R467
0
R423
33k
R434
33
R
4
0
5 33
R468
30
R408
33
R442
33
R432
33
R435
33
R473
0
R474
0
R469
30
R450
(
)
NC
R477
33
R40 33
R440
33
R451
6.04k
R409
33
R436
33
R454
0
R407
33
R453
0
R410
33
R430
33
R439
33
R
4
0
6 33
R449
100
R476
30
R431
33
R447
10k
R444
33
R441
33
R475
30
R411
33
R401
6.8
R443
33
R437
33
R448
10k
R466
0
RA487
33
27
RA487
33
18
RA486
33
45
RA481
33
18
RA486
33
27
RA483
33
45
RA484
33
18
RA483
33
36
RA484
33
36
RA483
33
18
RA484
33
45
RA483
33
27
RA482
33
36
RA485
33
45
RA482
33
45
RA485
33
36
RA484
33
27
RA482
33
27
RA485
33
18
RA482
33
18
RA485
33
27
RA481
33
45
RA486
33
36
RA481
33
36
RA481
33
27
RA486
33
18
RA487
33
36
RA487
33
45
C404
1uF
IC300
G4
NC1
G3
NC2
G2
NC3
G1
NC4
G7
NC5
B18
RTC_XIN
A18
RTC_XOUT
T18
XIN
T19
XOUT
T16
NC6
W21
TCK
AA21
TDI
Y21
TDO
W20
TMS
V20
TRST_L
V21
RESET_L
P20
HOST0_DM
P21
HOST0_DP
W14
DRAM_DATA0
N20
HOST1_DM
N21
HOST1_DP
R19
DEV_VSENSE
R20
DEV_DM
R21
DEV_DP
N19
USB_REXT
Y16
DRAM_DATA1
AA17
DRAM_DATA2
V16
DRAM_DATA3
V14
DRAM_DATA4
Y15
DRAM_DATA5
AA15
DRAM_DATA6
Y17
DRAM_DATA7
W17
DRAM_DATA8
Y18
DRAM_DATA9
AA18
DRAM_DATA10
V17
DRAM_DATA11
AA20
DRAM_DATA12
Y19
DRAM_DATA13
Y20
DRAM_DATA14
V19
DRAM_DATA15
Y9
DRAM_ADDR0
W8
DRAM_ADDR1
AA9
DRAM_ADDR2
V8
DRAM_ADDR3
Y8
DRAM_ADDR4
W9
DRAM_ADDR5
AA8
DRAM_ADDR6
Y7
DRAM_ADDR7
W10
DRAM_ADDR8
AA5
DRAM_ADDR9
V9
DRAM_ADDR10
AA7
DRAM_ADDR11
Y4
DRAM_ADDR12
W13
DRAM_ADDR13
Y6
DRAM_ADDR14
AA6
DRAM_ADDR15
V10
DRAM_BA0
AA10
DRAM_BA1
AA4
DRAM_BA2
Y3
DRAM_CKE0
Y5
DRAM_CKE1
AA16
DRAM_DM0
AA19
DRAM_DM1
V12
DRAM_NCAS
Y10
DRAM_NRAS
W12
DRAM_NWE
AA3
DRAM_NRESET
Y14
DRAM_ODT0
Y11
DRAM_ODT1
Y13
DRAM_ODT2
AA12
DRAM_ODT3
AA13
DRAM_NCS0
AA11
DRAM_NCS1
Y12
DRAM_NCS2
V13
DRAM_NCS3
W5
DRAM_CLK0
V5
DRAM_NCLK0
W6
DRAM_CLK1
V6
DRAM_NCLK1
W15
DRAM_DQS0
V15
DRAM_NDQS0
W18
DRAM_DQS1
V18
DRAM_NDQS1
AA14
DRAM_VREF
V7
DRAM_REXT
L402
2
3
41
IC402
1
IO1
2
GND
4
IO3
5
VDD
3
IO2
6
IO4
+3.3V
TCK
TDI
TDO
TMS
TRST
RESET
001:1E
XSYSRST
C403
0.01uF
R428
10k
R427
10k
C405
3pF
C406
2pF
X401
32.768kHz
C407
4pF
C408
4pF
C402
( )
NC
R452
F240
R472
F240
R471
F240
R482
0
R481
C409
47uF
VREF
+3.3V
+1.5V
VREF
VTT
IC403
1
VDDQSNS
2
VLDOIN
3
VTT
4
PGND
5
VTTSNS
6
VTTREF
7
S3
8
GND1
9
S5
10
VDD
11
GND2
C415
0.1uF
C413
10uF
VTTEN
001:4B
VTT
C410
10uF
R456
R455
N
X400
48M
1
2
4
3
Q400
C401
( )
NC
C412
220uF
IC406
1
OUT
2
GND
4
ON/*ON
5
SET
3
*FLT
6
IN
R458
1&
R417
22k
R403
10k
R415
2.2k
R429
10k
R446
( )
NC
NC
NC
NC
DDR3-SDRAM Termination
To USB Memory
DDR3-SDRAM #2
(512MB)
DDR3-SDRAM #1
(256MB)
To USB (DEV)
To Wireless LAN Module
MAIN BOARD (No.2)
( )
(
47k
Click on the first or last page to see other DP-MB251CX / DP-MB311EU / DP-MB311JT / KX-MB2571RU (serv.man2) service manuals if exist.