Table of Contents
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14 SCHEMATIC DIAGRAM
14.1. DIGITAL BOARD (1)
+3.3V
L600
2P221
RA605 47
DD[0]
1
DD[1]
2
DD[2]
3
DD[3]
4
RA606 47
DD[4]
1
DD[5]
2
DD[6]
3
DD[7]
4
DQML
WE
CAS
RAS
DBA[0]
DBA[1]
DA[10]
DA[0]
DA[1]
DA[2]
DA[3]
CKE
SDCLK
DQMU
DA[10]
R795
47
RA631
47
DA[0]
4
5
DA[1]
3
6
DA[2]
2
7
DA[3]
1
8
DA[4]
1
8
RA632
DA[5]
2
7
47
DA[6]
3
6
DA[7]
4
5
DA[8]
1
8
DA[9]
RA633
2
7
47
3
6
DA[11]
4
5
R791
47
DA[12]
DBA[0]
R792
47
R793
47
DBA[1]
RAS
R605
22
CAS
R606
22
SDCLK
L611
R607
22
1B471 1005
CKE
R794
22
A[0]
1
8
A[1]
2
7
A[2]
3
6
A[3]
4
5
RA602
A[4]
1
8
33
A[5]
RA603
2
7
A[6]
33
3
6
A[7]
4
5
A[8]
1
8
A[9]
RA604
2
7
A[10]
33
3
6
A[11]
4
5
A[12]
R608
33
A[13]
R609
33
L551
1B601
7F
LANRDY
R602
0
WR
R603
0
RD
3:1B
XMDMRST1
L552
7F
+3.3V
XLANRST
1B601 1005
A[13]
1
8
A[12]
RA600
2
7
A[11]
47K
3
6
A[10]
4
5
A[9]
1
8
A[8]
RA601
2
7
A[7]
47K
3
6
A[6]
4
5
A[5]
A[0]
R600
10K
A[3]
10K
R601
+3.3V
5C
A[23]
D[10]
D[9]
D[8]
A[13]
A[12]
A[11]
A[10]
A[9]
Q600
D[14]
R604
D[15]
4.7K
XSYSRST
A[22]
WP
D[13]
D[12]
A[8]
A[7]
A[6]
A[5]
A[4]
A[3]
A[2]
A[1]
RD
256Mbit SDRAM
IC601
1
54
VDD1
VSS54
2
53
RA609 47
DQ0
DQ15
8
3
52
1
8
VDDQ3
VSSQ52
4
51
7
2
7
DQ1
DQ14
6
5
50
3
6
DQ2
DQ13
6
49
5
4
5
VSSQ6
VDDQ49
7
48
DQ3
DQ12
8
47
RA610 47
DQ4
DQ1 1
8
9
46
1
8
VDDQ9
VSSQ46
7
10
45
2
7
DQ5
DQ10
11
44
6
3
6
DQ6
DQ9
5
12
43
4
5
VSSQ12
VDDQ43
13
42
DQ7
DQ8
14
41
VDD14
VSS41
15
40
LDQM
NC/RFU
16
39
UDQM
WE
17
38
CAS
CLK
18
37
CKE
RAS
DA[12]
19
36
CS
A12
DA[11]
20
35
BA0
A11
21
DA[9]
34
BA1
A9
DA[8]
22
33
A10/AP
A8
DA[7]
23
32
A0
A7
DA[6]
24
31
A1
A6
DA[5]
25
30
A2
A5
DA[4]
26
29
A3
A4
27
28
VDD27
VSS28
SOC
IC600
V13
R18
DA[0]
DD[0]
U12
R17
DA[1]
DD[1]
V12
T18
DA[2]
DD[2]
V11
T17
DA[3]
DD[3]
V7
U18
DA[4]
DD[4]
U7
V18
DA[5]
DD[5]
T7
U17
DA[6]
DD[6]
V8
V17
DA[7]
DD[7]
U8
T10
DA[8]
DD[8]
T8
U11
DA[9]
DD[9]
U13
T11
DA[10]
DD[10]
V9
T12
DA[11]
DD[11]
U9
T13
DA[12]
DD[12]
U14
T14
DBA[0]
DD[13]
V14
T15
DBA[1]
DD[14]
V15
T16
DRAS
DD[15]
R613
U15
U16
DCAS
DQM[0]
R614
V10
U10
DCLK
DQM[1]
R615
T9
V16
DCKE
DWE
A3
B9
SBA[0]
SBD[0]
A2
A9
4
5
SBA[1]
SBD[1]
A1
C8
3
6
SBA[2]
SBD[2]
B3
B8
2
7
SBA[3]
SBD[3]
1
8
B2
A8
SBA[4]
SBD[4]
B1
C7
4
5
SBA[5]
SBD[5]
3
6
C3
B7
SBA[6]
SBD[6]
C2
A7
2
7
SBA[7]
SBD[7]
1
8
C1
C6
SBA[8]
SBD[8]
D3
B6
4
5
SBA[9]
SBD[9]
3
6
D2
A6
SBA[10]
SBD[10]
D1
C5
2
7
SBA[11]
SBD[11]
1
8
E2
B5
SBA[12]
SBD[12]
E1
A5
4
5
SBA[13]
SBD[13]
A4
C4
3
6
SBACK/GPIO[80]
SBD[14]
C9
B4
2
7
SBWR
SBD[15]
A10
C12
1
8
SBRD
SBCS[0]/GPIO[44]
C11
SBCS[1]/GPIO[45]
E3
B11
MEM[0]/GPIO[30]
SBCS[2]/GPIO[46]
F3
A11
MEM[1]/GPIO[31]
SBCS[3]/GPIO[47]
F2
C10
MEM[2]/GPIO[32]
SBCS[4]/GPIO[81]
F1
B10
1B601
MEM[3]/GPIO[33]
SBCS[5]/GPIO[82]
128Mbit FLASH
IC602
1
56
A23
A24
2
55
A22
NC55
3
54
A15
A16
4
53
A14
BYTE
5
52
A13
VSS2
6
51
A12
DQ15/A-1
7
50
A11
DQ7
RA607
8
49
A10
DQ14
1
8
9
48
A9
DQ6
2
7
10
47
A8
DQ13
3
6
11
46
A19
DQ5
4
5
12
45
A20
DQ12
13
44
47
WE
DQ4
14
43
RESET
VCC
15
42
A21
DQ1 1
16
41
WP/ACC
DQ3
RA608
17
40
RY/BY
DQ10
1
8
18
39
A18
DQ2
2
7
19
38
A17
DQ9
3
6
20
37
A7
DQ1
4
5
21
36
A6
DQ8
22
35
47
A5
DQ0
23
34
A4
OE
24
33
A3
VSS1
25
32
A2
CE
26
31
A1
A0
27
30
NC27
NC30
28
29
A[13-0]
NC28
VIO
2:5B
PVCLK
1F
WP
DD[15]
L554
1B601 1005
DD[14]
2:8B
DEVAC
DD[13]
PVDATA[0]
PVDATA[3-0]
DD[12]
PVDATA[1]
2:5B
PVDATA[2]
PVDATA[3]
DD[11]
L603
3:5C
1B601
CIDRLY
DD[10]
L604
1B601
3:5C
SPMUTE
DD[9]
L605
3:5C
1B601
LINERLY1
DD[8]
L606
1B601
3:5C
BELL1
3:5C
L607
1B601
P-SHORT1
3:5C
L555
HOOK
3:5C
L556
EXHOOK
3:5B
L608
1B601
DCN1
L609
3:5B
1B601
48MHz
HSALC1
L602
3:5C
1B601
VOX
L557
3:5C
1B601 1005
DRUM
3:5C
L558
1B601 1005
PAPER
2:5C
PVREQ
7B
PVACK
L559
1B601 1005
2:5C
FAN1DET
L560
1B601 1005
2:2C
OPTOPEN
L561
1B601 1005
7C
FAN2DET
L562
1B601
2:2C
OPPAPER
+3.3V
X600
XSYSRST
4
1
OE
VDD
2
3
GND
OUT
TRST
TCK
TMS
IC616 NC
R551
0
TDI
DD[0]
1
8
CLKIN
NC
TDO
+3.3V
DD[1]
DD[2]
2
7
NC
VDD
DD[3]
DD[4]
3
6
SS%
CLKOUT
DD[5]
DD[6]
4
5
GND
SSON
DD[7]
DD[8]
R822
NC
(
)
DD[9]
+3.3V
DD[10]
C763
Z0.1u
DD[11]
Z0.1u
C764
DD[12]
C765
Z0.1u
DD[13]
C862
C766
Z0.1u
C865
DD[14]
C767
Z0.1u
DD[15]
C869
C768
Z0.1u
22
DQML
C769
Z0.1u
DQMU
Z0.1u
22
C770
Z0.1u
22
WE
C771
Z0.1u
J27p
C772
Z0.1u
D[0]
C773
Z0.1u
Z0.1u
D[1]
C774
Z0.1u
D[2]
Z0.1u
C775
D[3]
C776
Z0.1u
RA611
D[4]
Z0.1u
C777
33
Z0.1u
D[5]
C778
Z0.1u
D[6]
33
C779
Z0.1u
J27p
D[7]
RA612
C780
Z0.1u
D[8]
C781
Z0.1u
Z0.1u
D[9]
D[10]
33
J27p
D[11]
RA613
D[12]
Z0.1u
D[13]
D[14]
33
+3.3V
J27p
D[15]
RA614
R616
10K
2:5B
XGACS
3:1A
XMDMCS1
L553
7E
XLANCS
D[15-0]
D[11]
+3.3V
L610
+3.3V
D[7]
L684
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
+3.3V
335
SOC
IC600
D16
V4
PRIO[0]
SADCLK
E16
U3
PRIO[1]
SCLK1
E17
V3
PRIO[2]
SCLK2
E18
R2
PRIO[3]
SD[0
]
F16
K2
PRIO[4]
SD[1
]
F17
K3
PRIO[5]
SD[2
]
F18
H2
PRIO[6]
SD[3
]
G16
U2
PRIO[7]
SD[4
]
G17
J2
PRIO[8]
SD[5
]
G18
V2
PRIO[9]
SD[6
]
H16
K1
PRIO[10]
SD[7
]
H17
T3
PRIO[11]
SSEN
H18
T6
PRIO[12]
CCDCLK[0]
J16
U6
PRIO[13]
CCDCLK[1]
J17
V6
PRIO[14]
CCDCLK[2]
J18
T5
PRIO[15]
CCDCLK[3]
1B601
K16
U5
PRIO[16]
CCDCLK[4]
1B601 1005
K17
V5
PRIO[17]
CCDILL[0]
K18
PRIO[18]
L16
T4
CCDILL[1]
PRIO[19]
L17
U4
PRIO[20]
CCDILL[2]
L18
A13
SPICLK
PRIO[21]
M16
B12
PRIO[22]
SPIDO
M17
A12
SPIDI
PRIO[23]
L563
M18
G3
PRIO[24]
SMOT[0
]
L564
N16
G2
SMOT[1
PRIO[25]
]
N17
G1
PRIO[26]
SMOT[2
]
L565
N18
J3
SMOT[3
PRIO[27]
]
P16
H3
PRIO[28]
SMOT[4
]
P17
H1
SMOT[5
PRIO[29]
]
P18
R3
PRIO[30]
SMOT[6
]
R16
PRIO[31]
+3.3V
C15
2:6C
GPIO[0
]
D18
B15
3:1A
RESET
GPIO[1
]
T1
A15
GPIO[2
L569
XIN
]
P2
C14
7F
XOUT
GPIO[3
]
B14
1B601
GPIO[4
]
D17
A14
TEST
GPIO[5
]
B18
C13
GPIO[6
TRST
]
A18
B13
TCK
GPIO[7
]
C18
TMS
B17
A17
TDI
RXD/GPIO[34]
C17
A16
TXD/GPIO[35]
TDO
B16
RTS/GPIO[36]
C16
CTS/GPIO[37]
R824
NC
(
)
(
X600
)
R825
NC
+1.8V
+3.3V
C861
Z0.1u
C864
Z0.1u
C867
Z0.1u
C868
SOC
IC600
C621
C631
N15
P15
VDD33
VDD18
M15
L15
VDD33
VDD18
C622
C632
J15
H15
VDD33
VDD18
G15
E15
VDD33
VDD18
C623
C633
F15
D15
VDD33
VDD18
D13
D14
VDD33
VDD18
C634
D12
D11
VDD33
VDD18
D9
D8
VDD33
VDD18
C625
C635
D7
D5
VDD33
VDD18
D6
D4
VDD33
VDD18
C626
C636
F4
E4
VDD33
VDD18
G4
J4
VDD33
VDD18
C627
C637
K4
L4
VDD33
VDD18
M4
R5
VDD33
VDD18
C628
C638
R4
R8
VDD33
VDD18
R6
R11
VDD33
VDD18
C629
C639
R7
R14
VDD33
VDD18
R10
R15
VDD33
VDD18
C630
R12
VDD33
R13
M12
VSS18
VDD33
L11
VSS18
L12
K11
VSS33
VSS18
K12
J11
VSS18
VSS33
K15
H11
VSS33
VSS18
J12
G12
VSS18
VSS33
H12
J10
VSS33
VSS18
G11
H10
VSS18
VSS33
G10
J9
VSS33
VSS18
D10
H9
VSS18
VSS33
G9
G7
VSS33
VSS18
G8
H8
VSS18
VSS33
H7
J8
VSS18
VSS33
J7
K8
VSS18
VSS33
K7
K10
VSS18
VSS33
L7
L8
VSS18
VSS33
M7
L9
VSS18
VSS33
M8
L10
VSS33
VSS18
R9
VSS33
M9
N1
VSS33
DDP
M10
M3
VSS33
DDM
M11
M1
VSS33
RDP
L2
RDM
J1
R1
VDDA33
RREF
R619
V1
M2
VDDA33
RPUDP
L3
F1.50K
VDDUA33
H4
L1
VSSA33
VSSUA33
T2
P1
VDDUC33
VSSA33
U1
VSSUC
N2
VDDUA18
N3
VSSUA18
P3
VDDUC18
L612
N4
VSSSW
P4
VDDDIG18
K9
VSSDIG18
+1.8V
C556
K1000p
K1000p
C557
K1000p
C558
K1000p
C562
C559
K1000p
C560
K1000p
C561
K1000p
KX-FLB852CX / KX-FLB852CXS
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
1B601 1005
7B
FAN1HALF
1B601 1005
7B
FAN1FULL
2:2C
SN_OP
1B601 1005
2:2A
SN_ST
2:7F
SN_MNL
2:7F
SN_REG
2:7F
SN_PICK
XGAINT
+3.3V
XMDMINT1
LANIN T
2:5F
CSOPEN
5E
USBPWR
A[22]
1F
1E
A[23]
Z0.1u
Z0.1u
Z0.1u
Z0.1u
Z0.1u
K0.01u
Z0.1u
K0.01u
Z0.1u
K0.01u
Z0.1u
K0.01u
Z0.1u
+5VD
C782
Z0.1u
C783
Z0.1u
C784
Z0.1u
C785
Z0.1u
C786
Z0.1u
C787
Z0.1u
C788
Z0.1u
Z0.1u
C789
C790
Z0.1u
Z0.1u
C791
C792
Z0.1u
Z0.1u
C793
C794
Z0.1u
(23)
(24)
(25)
(26)
R620
F3.09k
+3.3V
L613
C640
J220p
+1.8V
0
L614
1P181
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Table of Contents
Troubleshooting
