Panasonic KX-NT680RU-B Service Manual ▷ View online
45
KX-NT680 Series
11.2.5.
How to Remove a Solder Bridge (Doesn't apply to IC ground plate.)
When a Solder Bridge is found after soldering the bottom of the IC, remove it with a soldering iron.
46
KX-NT680 Series
12 Schematic Diagram
12.1. Main Board
(７
)DDR_CLK
(9) (10)
DDR_DQ0/2
(８
)DDR_DA0
(5) (6)NAND Flash
(3)X1001 25MHz
(4)X1002 12MHz
(15) (16) (17)
BT_UTX /BT_URX
BT_CLK/BT_SYNC/BT_DIN/BT_DOUT
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
DDR_DA0
DDR_DA1
DDR_DA2
DDR_DA3
DDR_DA4
DDR_DA5
DDR_DA6
DDR_DA7
DDR_DA8
DDR_DA9
DDR_DA10
DDR_DA11
DDR_DA12
DDR_CS0
DDR_WE
DDR_RAS
DDR_CAS
DDR_CKE
NFLREADY
DDR_BA0
DDR_BA1
DDR_BA2
NFLRD
NFLCLE
NFLCS0
NFLALE
NFLWR
DDR_DQ0
DDR_DQ1
DDR_DQ2
DDR_DQ3
DDR_DQ4
DDR_DQ5
DDR_DQ6
DDR_DQ7
DDR_LDQS
DDR_LDQS_N
DDR_DQ8
DDR_DQ9
DDR_DQ10
DDR_DQ11
DDR_DQ12
DDR_DQ13
DDR_DQ14
DDR_DQ15
DDR_UDM
DDR_UDQS
DDR_UDQS_N
DDR_DQ0
DDR_DQ1
DDR_DQ2
DDR_DQ3
DDR_DQ4
DDR_DQ5
DDR_DQ6
DDR_DQ7
DDR_DQ8
DDR_DQ9
DDR_DQ10
DDR_DQ11
DDR_DQ12
DDR_DQ13
DDR_DQ14
DDR_DQ15
DDR_DA0
DDR_DA1
DDR_DA2
DDR_DA3
DDR_DA4
DDR_DA5
DDR_DA6
DDR_DA7
DDR_DA8
DDR_DA9
DDR_DA10
DDR_DA11
DDR_DA12
DDR_BA0
DDR_CS0
DDR_LDM
BT_SYNC
DDR_ODT
DDR_BA1
DDR_RAS
DDR_CAS
DDR_WE
NFLCS0
NFLALE
NFLCLE
NFLRD
NFLWR
NFLD4
NFLD5
NFLD6
NFLD7
btdout
BT_CLK
DDR_LDQS_N
DDR_LDQS
DDR_UDQS
DDR_UDQS_N
NFLD7
NFLD6
NFLD5
NFLD4
NFLD3
NFLD2
NFLD1
NFLD0
btu1tx
BT_DIN
BT_DOUT
BT_U1TX
DDR_BA2
DSS_DN
KEY_OUT[3]
KEY_OUT[2]
KEY_OUT[1]
KEY_OUT[0]
KEY_IN[7]
KEY_IN[6]
KEY_IN[5]
KEY_IN[4]
KEY_IN[3]
KEY_IN[2]
KEY_IN[1]
KEY_IN[0]
BT_U1RX
KEY_OUT[4]
KEY_OUT[5]
DDR_DA13
DDR_CKE
DDR_RST
DDR_ODT
DDR_UDM
DDR_LDM
DDR_DA14
DDR_RST
DDR_DA13
BT_CLK
BT_SYNC
BT_DIN
BT_DOUT
BT_U1RX
BT_U1TX
NFLD3
NFLD2
NFLD1
NFLD0
BT_RST
BT_RST
NFLREADY
DDR_CLK0
DDR_CLK0_N
DDR_CLK0
DDR_CLK0_N
C1043
22p
50
R1053
1M
C1042
27p
50
VDD1R3V
C1040
10p
50
C1041
12p
50
X1001
25M
1
2
4
3
R1047
470
R1050
1M
VDD1R3V
RGMII_TD1
RGMII_TD3
RGMII_TD2
RGMII_TD0
R1066
33
E_MDIO
E_MDCLK
R1065
33
RGMII_RCTL
RGMII_RCLK
RGMII_RD0
RGMII_RD1
RGMII_RD2
RGMII_RD3
VDD3R3V
VDD3R3V
VDD3R3V
VDD1R3V
VDD3R3V
C1047 0.1u
10
3R3V
R1003
1k
R1002
4.7k
U2TX
VDD3R3V
R1038
470
PHY_RST
RGMII_TCTL
R1049
47
25MOUT
L1001
X1002
12M
JC
JI
JO
JM
JR
R1015
68
R1016
68
R1017
300
U2RX
R1063
33
R1064
33
U2_A
U2TX
U2TX
U2_B
U2RX
U2RX
L2SW_3R3V
3.3V_2
DG_2
C1031 0.01u
16
I2C_SDA
I2C_SCLK
ASIC_CLK
ASIC_RST
ASIC_INT0
C1023
2.2uF
C1024
0.1u
C1025
2.2uF
C1026
0.1u
C1027
2.2uF
C1021
0.1uF
16V
C1020
0.1uF
16V
C1033
0.1u
C1002
0.1u
C1003
0.1u
C1004
0.1u
C1005
0.1u
C1007
0.1u
C1008
0.1u
C1009
0.1u
C1010
0.1u
C1011
0.1u
C1012
0.1u
C1013
0.1u
C1014
0.1u
C1015
0.1u
C1016
0.1u
C1018
0.1u
C1017
0.1u
IC1002
1
NC1
2
NC2
46
NC27
47
NC28
3
NC3
48
NC29
4
NC4
45
NC26
5
NC5
44
I/O7
6
NC6
43
I/O6
7
R/*B
42
I/O5
8
*RE
41
I/O4
9
*CE
40
NC25
10
NC7
39
NC24
11
NC8
38
NC23
12
VCC1
37
VCC2
13
VSS1
36
VSS2
14
NC9
35
NC22
15
NC10
34
NC21
16
CLE
33
NC20
17
ALE
32
I/O3
18
*WE
31
I/O2
19
*WP
30
I/O1
20
NC11
29
I/O0
21
NC12
28
NC19
22
NC13
27
NC18
23
NC14
26
NC17
24
NC15
25
NC16
C1001 0.1u
C1019
0.1u
+12V
C1032
220pF
C1034
220pF
C1035
220pF
C1036
220pF
C1037
220pF
R1020
100
1R5V
1R5V
C1045
0.1u
10
C1046
0.1u
10
KEY_OUT[0-5]
1R5V
L1002
D1007
8V
D1011
27V
C1048
0.1u
16
R1071
1k
R1080
100
5V
R1073
8.2k
JK1001
6
5
4
3
2
1
7
DG_1
RGMII_TCLK
R1043
1.2k
R1044
1.2k
D1003
VDD3R3V
D1005
D1006
D1004
R1119
33
R1120
33
R1060
150
R1067
56
C1039
8pF
C1022
100p
R1030
33
R1031
33
R1032
33
R1033
33
R1034
33
R1009
10k
R1014
22
R1013
22
R1010
0
R1019
100
R1018
100
R1062
0
R1007
5.1k
1%
R1008
1%
5.1k
R1046
100
BT_U1_A
BT_DOUT
BT_DIN
BT_SYNC
BT_CLK
C1038
220pF
R1074
2.2k
DSS_RST
DSS_RST
ST0
DEB_0
DEB_1
DEB_3
DEB_4
DEB_5
C1006
0.1u
3R3V
R1125
0
R1107
33
R1108
33
R1106
33
R1104
33
R1103
33
LED_RED_SP
LED_GRN_INCOM
R1068
2.2k
BT_U1_B
D1008
D1010
ST_UCFG0
ST_UCFG1
ST_CKMN1
ST_CKMN0
ST_BOOTNFL
ST_UCFG4
ST_UCFG2
ST_UCFG3
ST_MAINCLK
ST_25M50M
LF1001
12
3
4
JK4001
HEADSET_JACK
1
4
2
3
5
HEAD_J1_GND
HEAD_J2_IN
HEAD_J3_DET
HEAD_J4_CAP
HEAD_J5_OUT
EHS_J4_GND
EHS_J1_TX
EHS_J2_7.5V
EHS_J3_RX
JK5001
EHS_JACK
4
1
3
2
SW4001
1
2
3
5
6
4
HOOKSW_S3_SIG
HOOKSW_S2_GND
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
LCD_R[2]
LCD_R[3]
LCD_R[4]
LCD_R[5]
LCD_R[6]
LCD_R[7]
LCD_G[2]
LCD_G[3]
LCD_G[4]
LCD_G[5]
LCD_G[6]
LCD_G[7]
LED_RED_CONF
LED_RED_FWD
LED_RED_MUTE
LED_GRN_RINGER
LED_RED_RINGER
LED_RED_STORE
KEY_IN[0-7]
HEAD_DET
DEB_2
ST3
D1024
3.72V
D1023
3.72V
D1019
3.72V
DUMMY_J1_NC
IC1003
DDR3_2Gbit
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
NC5
M7
A13
T3
NC6
T7
VSSQ4
D8
VSSQ5
E2
VSSQ6
E8
VSSQ7
F9
VSSQ8
G1
VSSQ9
G9
R1001
100
R1098
240
DG
R1099
0
C1063
0.1u
C1064
0.1u
C1065
0.1u
R1005
0
LCD_B[2]
LCD_B[3]
LCD_B[4]
LCD_B[5]
LCD_B[6]
LCD_B[7]
LCD_VSYNC
LCD_HSYNC
LCD_DE
LCD_R[1]
LCD_G[0]
LCD_G[1]
LCD_B[0]
LCD_B[1]
LCD_R[0]
LCD_PCLK
LCD_EN
R1100
100
R1101
100
R1102
100
R1112
100
R1116
100
L1003
C1066
100pF
C1067
18pF
DG
DG
RA1005
100
18
27
36
45
RA1006
100
18
27
36
45
RA1007
100
18
27
36
45
RA1008
100
18
27
36
45
R1117
100
R1118
100
R1121
100
R1122
100
R1123
100
R1124
100
R1131
100
R1132
100
3
6
2
7
4
5
RA1002
150
1
8
1
8
2
7
RA1003
56
3
6
4
5
3
6
2
7
4
5
RA1001
150
1
8
BT_MDO
DG
BT_TDO
BT_TMS
BT_TCK
BT_SIO
BT_SOT
BT_SOT
3R3V
C1070
0.1uF
10V
BT_3.3V
R1146
2.2k
C1072
0.01uF
16V
DG
C1077
8pF
50V
ANT_JP
12
L1004
6.8nH
ANT_BT_Short
BT_RST
BT_RST
BT_RST
R1021
100
R1109
0
R1110
0
VDD3R3V
J3R3V
C1078
100p
C1079
33p
C1080
33p
C1081
100p
DG
C1109
33p
C1082
33p
C1083
33p
C1084
33p
C1085
33p
C1086
33p
C1092
33p
C1088
33p
C1090
33p
C1087
33p
C1089
33p
C1091
33p
C1098
33p
C1094
33p
C1096
33p
C1093
33p
C1095
33p
C1097
33p
C1100
33p
C1099
33p
C1101
33p
C1102
33p
C1103
33p
C1104
33p
C1105
33p
C1106
33p
C1107
33p
C1108
33p
IC1001
D9
*DDRRST
C10
DDRCS0
L4
MEMXD2/LCDD4
M1
MEMXD1/LCDD3
B11
DDRCS1
M4
MEMXD0/LCDD2
A14
*DDRWE
L1
MEMXD3/LCDD5
B13
*DDRRAS
M2
MEMXD4/LCDD6
B12
*DDRCAS
K2
MEMXD5/LCDD7
D11
DDRBA0
B14
DDRBA1
K1
MEMXD6/LCDD10
C13
DDRBA2
J2
MEMXD7/LCDD11
B15
DDRA0
H1
MEMXD8/LCDD12
C12
DDRA1
J1
MEMXD9/LCDD13
C14
DDRA2
K3
MEMXD10/LCDD14
B16
DDRA3
K4
MEMXD11/LCDD15
D13
DDRA4
N1
MEMXD12/LCDD18
C15
DDRA5
L2
MEMXD13/LCDD19
B17
DDRA6
L3
MEMXD14/LCDD20
A19
DDRA7
M3
MEMXD15/LCDD21
C16
DDRA8
D14
DDRA9
B18
DDRA10
D15
DDRA11
C17
DDRA12
D16
DDRA13
B19
DDRA14
D10
DDRCKE
A13
DDRCKELP
A17
DDRCLK0
A18
DDRCLK0_N
A15
DDRCLK1
A16
DDRCLK1_N
A7
DDRDQ0
B7
DDRDQ1
B8
DDRDQ2
C8
DDRDQ3
B9
DDRDQ4
A10
DDRDQ5
C9
DDRDQ6
B10
DDRDQ7
D8
DDRDM0
A9
DDRDQS0
A8
DDRDQS0_N
B4
DDRDQ8
D5
DDRDQ9
C5
DDRDQ10
B5
DDRDQ11
C6
DDRDQ12
D6
DDRDQ13
C7
DDRDQ14
D7
DDRDQ15
B6
DDRDM1
A6
DDRDQS1
A5
DDRDQS1_N
E16
DDRPADHI
E14
DDRPADLO
C4
DDR_RTT
A12
DDRODT0
C11
DDRODT1
C18
DDR_REF0
A11
DDR_REF1
A4
DDR_REF2
E7
VDDIO_DDR1
E10
VDDIO_DDR2
F5
VDDIO_DDR3
F6
VDDIO_DDR4
F7
VDDIO_DDR5
F8
VDDIO_DDR6
F9
VDDIO_DDR7
F10
VDDIO_DDR8
G11
VDDIO_DDR9
N8
VDDIO_NFLQSPI
R6
NFLD7/MEMXA21
W6
NFLD6/QCS1
T7
NFLD5/QCS0
T6
NFLD4/QDQ3
V4
NFLD3/QDQ2
V6
NFLD2/QDQ1
U6
NFLD1/QDQ0
W5
NFLD0/QCLK
R5
NFLREADY1/MEMXA22
U5
NFLWR/MEMXA23
T4
NFLRD/MEMXA24
V5
NFLCLE/MEMXA25
U4
NFLALE/MEMXA17
T5
NFLCS0/MEMXA18
H4
MEMCS3/EXTINT7
H3
MEMCS2/EXTINT6
G4
MEMCS1/LPCLK
G3
MEMCS0/LCDD0
E4
MEMRD
J4
MEMWR
E1
MEMXA20_MEMRAS/LCDD16
F2
MEMXA19_MEMCAS/LCDD9
F1
MEMCKE/EXTINT13
G1
MEMCLK
D4
MEMXA16
F4
MEMXA15
D3
MEMXA14_BA1/LCDD8
D1
MEMXA13_BA0/LCDD1
G2
MEMXA12/EXTINT14
F3
MEMXA11/LCDGP8
C2
MEMXA10/LCDGP7
E2
MEMXA9/LCDGP6
E3
MEMXA8/LCDGP5
D2
MEMXA7/LCDGP4
C1
MEMXA6/LCDGP3
C3
MEMXA5/LCDGP2
B2
MEMXA4/LCDGP1
A3
MEMXA3/LCDGP0
A2
MEMXA2/EXTINT4
B3
MEMXA1/LCDD23
B1
MEMXA0/LCDD22
H2
MEMDQMBLS0/LCDD17
J3
MEMDQMBLS1/EXTINT5
IC1001
U9
KEY_COL0
T9
KEY_COL1
R4
MDIO
W9
KEY_COL2
N4
MDC
V9
KEY_COL3
T3
MIICOL/U2RX
T10
KEY_COL4
R2
MIICRS_DV/RGMIIRX_CTL
R10
KEY_COL5
T2
MIIREFCK/RGMIITXC
P7
KEY_COL6
W7
KEY_COL7/SPI2CS
R1
MIIRXCK/RGMIIRXC
T8
KEY_ROW0
U2
MIITXD0/RGMIITD0
U8
KEY_ROW1
U1
MIITXD1/RGMIITD1
W8
KEY_ROW2
V2
MIITXD2/RGMIITD2
R9
KEY_ROW3
V1
MIITXD3/RGMIITD3
V8
KEY_ROW4
T1
MIITXEN/RGMIITX_CTL
V10
KEY_ROW5
N3
MII_TXER/SPI1CS1
U10
KEY_ROW6/IIC2SCL
R3
MIIRXD0/RGMIIRD0
P10
KEY_ROW7/IIC2SDA
P1
MIIRXD1/RGMIIRD1
P9
KEY_ROW8
P3
MIIRXD2/RGMIIRD2
P8
KEY_ROW9
P5
USB1ID
W1
USB2N
W2
USB2P
P6
USB1VBUS
N6
USB1VRES
N5
VDDA_USB1
M6
VDDL_USB1
U11
EXTINT8/DRV_VBUS
U3
USB1N
V3
USB1P
M5
VCC_USB2
T11
U1TX
R11
U1RX
P11
U1CTS/DIGMIC_DATA
R12
U1RTS/DIGMIC_CLK
F14
SPI1CS0
G14
SPI1DI
E15
SPI1CK
E17
SPI1DO
D18
SPI2CK
D17
SPI2DI
C19
SPI2DO
F17
T1SCLK
E18
F1SYNC
D19
D1RX
F15
D1TX
V11
SD_D0
W11
SD_CMD
W10
SD_CLK
F18
TRST
H15
TMS
H16
TDO
G16
TDI
G15
TCK
M7
OSC12M_VSS
N7
OSC12M_VDD12
W4
XO12M
W3
XI12M
J12
OSC25M_VSS
J13
OSC25M_VDD12
F19
XO25M
E19
XI25M
G19
MAIN_CLK_OUT
F16
TEST
H14
ETEST
E12
E_VDDQ
P12
DGPIO31
N11
DGPIO30
R7
EXTINT3/CLK_REF_OUT
V7
EXTINT2/CLK_OUT
R8
EXTINT1/IIC1SCL
U7
EXTINT0/IIC1SDA
L5
VDDIO_RGMII
P4
MIIRXCRS/U2TX
P2
MIIRXD3/RGMIIRD3
N2
MIIRXER/EXTINT12
IC1001
G18
RF_RADIO_EN/EXTINT9
J17
RF_SCLK/SD_D2
K17
IF_DATA_DA
H17
RF_SDATA_IN/SD_D3
L15
IF_DATA_AD
J18
RF_SDATA_OUT/SD_D1
L14
IF_EN_AD
J16
RF_SEN/SD_WR_PROT
J19
IF_EN_DA
H19
RF_SLOT_CTRL/SD_DETECT
K14
IF_INT_ANA
H18
RF_TR_DATA/EXTINT10
G17
EXTINT15/SYNCPORT
K15
IF_MLSE
K16
IF_NARES
J15
IF_RX1
J14
IF_T_DATA
M14
VDDIO_RFAPU
C1057
0.1uF
16V
R1105
100
L1005
L1006
DG
C1111
100pF
C1112
1000pF
C1113
100pF
C1114
1000pF
C1115
100pF
C1116
1000pF
C1117
100pF
C1118
1000pF
C1119
100pF
C1120
1000pF
C1121
100pF
C1123
100pF
C1122
1000pF
C1124
1000pF
DG
IC1004
15
GND4
20
GND8
21
GND9
22
GND10
23
GND11
24
PIO1
29
SIO0/PIO5
30
SOT0/PIO6
31
PCM_IN
32
PCM_CLK
4
GND2
5
MD0
6
RX
7
GND3
8
X0/PIO3
12
TMS
13
TCK
14
RESETB
17
GND6
18
GND7
19
RF
26
GND12
27
3V
28
GND13
1
GND1
2
PCM_SYNC
3
PCM_DOUT
9
TX
10
TDO
11
RESETC
16
GND5
25
PIO2
SHORT
DDR_DA14
BT_CLK
BT_SYNC
BT_DIN
BT_DOUT
R1006
NC
R1011
NC
R1012
NC
R1004
NC
D1001
NC
D1002
NC
R1075
NC
VDD3R3V
R1077
NC
R1078
NC
R1081
NC
R1072
NC
R1076
NC
R1083
NC
R1096
NC
R1097
NC
DG
D1025
NC
D1022
NC
D1021
NC
D1020
NC
D1018
NC
D1017
NC
D1016
NC
D1015
NC
D1014
NC
D1012
NC
D1013
NC
R1111
NC
R1041
NC
C1069
NC
DG
C1071
NC
R1147
NC
R1148
NC
R1149
NC
R1150
NC
VDD3R3V
C1073
NC
C1074
NC
C1075
NC
C1076
NC
OJ1001
NC
ANT_TP-BT
1
2
DG
C1110
NC
DG
DG
C1028
NC
C1029
NC
VDD3R3V
DDR_MEMORY
BBIC_MEMORY
BBIC_IF
DDS
BT
FLASH
UART
JACK_PCB
HOOKSW_PCB
MAIN Board No.1
47
KX-NT680 Series
(27) E_MDCLK,E_MDIO
(26) 25MOUT
(31) (32) (33) Ethernet port
(28) (29) (30) Ethernet port
(1)PoE DC/DC switching
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
ether_lan[7]
ether_lan[8]
ether_lan[5]
ether_lan[4]
ether_lan[3]
ether_lan[6]
ether_lan[1]
ether_lan[2]
ether_pc[1]
ether_pc[2]
ether_pc[6]
ether_pc[4]
ether_pc[5]
ether_pc[7]
ether_pc[8]
ether_pc[3]
MDI_LD_P
MDI_LD_N
MDI_LC_N
MDI_LB_P
MDI_LC_P
MDI_LB_N
MDI_LB_N
MDI_LA_N
MDI_LA_P
MDI_LA_P
MDI_PD_N
MDI_PD_P
MDI_PC_N
MDI_PC_P
MDI_PB_N
MDI_PB_P
MDI_PA_N
MDI_PA_P
MDI_PD_P
MDI_PC_N
MDI_PC_P
MDI_PB_N
MDI_PB_P
MDI_PA_N
MDI_PA_P
MDI_PB_N
MDI_PA_N
MDI_PB_P
MDI_PA_P
MDI_PC_P
MDI_PC_N
MDI_PD_P
MDI_PD_N
MDI_LD_N
MDI_LD_P
MDI_LC_N
MDI_LC_P
MDI_LB_N
MDI_LB_P
MDI_LA_N
MDI_LA_P
C2045
0.01u
16
L2012
PoE_AN
C2044
0.01u
16
PoE_AP
L2010
L2011
L2009
C2056 1000pF 2000V
PoE_DC
PoE_BP
PoE_BN
C2043
47u1
6
C2042
47u16
R2032
1k
5
0.063
C2047100p
50
PoE_DC
DG_3
C2063
0.1u
10
C2039
0.01u
16
R2026
10k
C2060
1000pF
50V
PoE_G_Q
PoE_G_Q
C2058
0.1uF
10V
PoE_G_Q
R2043
100k
D2002
L2008
47uH
1.8A
R2030
0.27
0.5
1%
Q2002
IC2002
350kHz
1
VAUX
2
CT1
6
VDD48I
3
CT2
4
SP1
5
SP2
7
GND1
8
VDD5
9
RCURR
10
RCLASS
11
LVMODE
12
FB
13
COMP
14
CSS
15
CS
21
GND2
20
VDD48O
19
PDRV
18
VBP
17
VBN
16
NDRV
C2048
100
22uF
JK2002
8
7
6
5
4
3
1
2
JK2001
8
7
6
5
4
3
1
2
Q2001
T2001
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
9
9
16
16
10
10
15
15
11
11
12
12
13
13
14
14
T2002
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
9
9
16
16
10
10
15
15
11
11
12
12
13
13
14
14
R2029
0.063W
1%
1.5k
R2027
10k
0.063
1%
R2040
51k
1%
R2028
20k
0.063
1%
R2034
0.063W
13.7k
C2017
0.1uF
16V
L2003
RGMII_RCTL
001:6A
C2005
0.01uF
16V
C2025
2.2uF
6.3V
CL2001
R2025
1%
16k
L2002
RGMII_TCLK
001:6B
C2023
0.01uF
16V
RGMII_TCTL
001:6B
C2014
0.1uF
16V
L2_VDDR
CL2002
L2001
R2017
1.5k
C2008
0.1uF
16V
L2_VDDL
CL2003
RGMII_TD3
001:6B
C2001
0.01uF
16V
C2006
0.01uF
16V
C2004
0.1uF
16V
L2_VDD
CL2004
RGMII_TD2
001:6B
PHY_RST
001:4C
E_MDIO
001:6A
RGMII_TD0
001:6B
L2_VDDS
CL2005
RGMII_RCLK
001:6B
RGMII_RD1
001:6B
L2SW_3R3V
E_MDCLK
001:6A
C2019
0.1uF
16V
L2007
CL2006
RA2001
56
1
8
2
7
3
6
4
5
C2013
0.01uF
16V
C2027
0.01uF
16V
C2015
0.01uF
16V
C2011
0.1uF
16V
L2_VDDA
CL2007
R2023
56
C2022
0.01uF
16V
L2SW_1R1V
C2034
2.2uF
6.3V
R2022
0
C2007
0.1uF
16V
RGMII_RD2
001:6B
L2SW_1R1V
C2020
0.1uF
16V
R2024
150
C2036
2.2uF
6.3V
RGMII_RD3
001:6B
L2SW_1R1V
C2012
0.01uF
16V
R2018
1.5k
C2002 22pF
50V
C2029
0.1uF
16V
L2_VDDH
L2SW_3R3V
RGMII_RD0
001:6B
C2010
0.01uF
16V
C2028
2.2uF
6.3V
C2037
2.2uF
6.3V
L2_VDDP
L2SW_3R3V
C2003
0.01uF
16V
C2021
0.1uF
16V
C2030
0.1uF
16V
L2006
C2018
0.01uF
16V
C2024
0.01uF
16V
C2016
0.1uF
16V
L2005
L2SW_3R3V
25MOUT
001:5C
L2SW_3R3V
C2031
0.1uF
16V
L2004
C2009
0.01uF
16V
RGMII_TD1
001:6B
C2026
0.01uF
16V
R2033
47
R2045
90.9k
C2041
10u16
C2040
10u16
C2038
10uF
6.3V
C2032
10uF
6.3V
C2033
10uF
6.3V
C2035
10uF
6.3V
R2019
1%
200
C2064
0.047uF
100V
IC2001
A40
G0_TPIBN
B37
G0_TPICP
A41
G0_TPICN
B38
G0_TPIDP
B39
G0_TPIDN
A43
G1_TPIAP
B40
G1_TPIAN
B41
G1_TPIBP
A45
G1_TPIBN
B43
G1_TPICP
A47
G1_TPICN
B44
G1_TPIDP
B45
G1_TPIDN
A49
G2_TPIAP
B46
G2_TPIAN
B47
G2_TPIBP
A51
G2_TPIBN
B48
G2_TPICP
A52
G2_TPICN
C4
VDD3
C2
VDD4
A23
VDDQ
B19
VDDS1
C15
VDDS2
C17
VDDA
C37
VDDL1
C33
VDDL2
C12
VDDL3
B42
VDDL4
C28
VDDR1
C26
VDDR2
C21
VDDP1
C19
VDDP2
C8
VDDP3
C6
VDDP4
C39
VDDH1
C36
VDDH2
C34
VDDH3
B30
RGMII5_TXD2
B31
RGMII5_TXD3
B28
RGMII5_TX_CTL
B32
RGMII5_RXC
B33
RGMII5_RXD0
A36
RGMII5_RXD1
B34
RGMII5_RXD2
B35
RGMII5_RXD3
A38
RGMII5_RX_CTL
B20
RX0_P
B21
RX0_M
B18
TX0_P
A19
TX0_M
B17
RESREF
B25
GPIO0/GPC0/EXINT0/MMDIO
A27
GPIO1/GPC1/EXINT1/MMDC
A30
GPIO2/SSDI/URXD
B27
GPIO3/SSDO/UTXD
A28
GPIO4/SSCK/SMDC/LIGHT
A10
GPIO19/LED30/TMS
A12
GPIO20/LED40/TCK
B4
GPIO21/LED01
B6
GPIO22/LED11
B8
GPIO23/LED21
B10
GPIO24/LED31
B12
GPIO25/LED41
B5
GPIO26/LED02/LIGHT
B7
GPIO27/LED12
B9
GPIO28/LED22
B11
GPIO29/LED32
A13
GPIO30/LED42
A2
TRSTN
B22
XTAL1/CLK
B23
XTAL2
B3
HRSTN
A21
NC1
B2
NC2
B36
G0_TPIAP
A39
G0_TPIAN
D4
G0_TPIBP
D1
G2_TPIDP
A1
G2_TPIDN
D2
G3_TPIAP
PAD1
GND
C25
VDD1
C23
VDD2
C31
VDDH4
C14
VDDH5
C10
VDDH6
A34
RGMII5_TXC
B29
RGMII5_TXD0
A32
RGMII5_TXD1
B26
GPIO5/SSCS/SMDIO/PWLED
B24
GPIO6/MSDI/LIGHT
A26
GPIO7/MSDO/PWLED
A4
GPIO16/LED00
A6
GPIO17/LED10/TDO
A8
GPIO18/LED20/TDI
A14
G3_TPIAN
B13
G3_TPIBP
A15
G3_TPIBN
B14
G3_TPICP
B15
G3_TPICN
A17
G3_TPIDP
D3
GPIO8/MSCK
A25
GPIO9/MSCS
B16
G3_TPIDN
B1
RCAL
D2003
68V
R2047
0
R2048
0
LF2001
12
3
4
LF2002
12
3
4
LF2003
12
3
4
LF2004
12
3
4
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
R2046
1%
26.7k
26.7k
D2001
3.72V
R2035
75
R2038
75
R2036
75
R2041
75
R2037
75
R2042
75
R2039
75
R2044
75
C2061
0.047uF
100V
C2062
0.047uF
100V
C2055
0.047uF
100V
C2057
0.047uF
100V
C2059
1000pF
100V
C2051
0.47uF
10V
C2052
0.1uF
10V
C2050
0.1uF
100V
C2049
1uF
100V
PoE_G_N
PoE_G_N
PoE_G_Q
PoE_G_Q
L2013
PoE_G_N
C2054 1000p 100
NC
R2031
NC
C2053 1000p 100
NC
C2046 NC
R2014
NC
R2013
NC
R2010
NC
R2021
NC
R2009
NC
R2007
NC
R2008
NC
R2003
NC
R2004
NC
R2001
NC
R2002
NC
L2SW_3R3V
R2020
NC
R2015
NC
R2016
NC
R2006
NC
R2012
NC
R2011
NC
R2005
NC
D2004
NC
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
L2SW_3R3V
DG
C2065
NC
LF2008
NC
12
3
4
LF2005
NC
12
3
4
LF2006
NC
12
3
4
LF2007
NC
12
3
4
L2SW
LAN_PC
LAN_WAN
PoE
MAIN Board No.2
48
KX-NT680 Series
(34) LCD_PWM
SHORT
SHORT
SHORT
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
3R3V
DCIN
5V
DC_J
PDN
004:5D
R3018
10k
F1
+5.0V
+3.3V
AVCC3R3V
L3003
VCC5V
L2SW_3R3V
VDD3R3V
L2SW_1R1V
+1.1V
DG_4
DG_5
DG_6
DG_7
DG_8
DG_9
D3005
C3046
0.1u
10
C3047
0.1u
10
C3048
0.1u
10
C3049
0.1u
10
C3050
0.1u
10
C3021
100p
C3026
1000p
C3030
1000p
C3005
1000p
C3008
100p
AG
IC3001
1
ON/OFF
2
VSS
4
VIN
5
VOUT
3
SSC
1R5V
+1.5V
C3070
0.01uF
16V
C3069
22uF
16V
R3002
100k
C3003
2.2uF
6.3V
C3001
2.2uF
6.3V
PoE_DC
+12V
+12V
AG
JK3001
2
3
1
F3001
32V
4A
R3019
6.8k
F1
C3044
220p
C3045
220p
EXT_REG_CTL
004:7C
OJ3002
OJ3003
OJ3004
DCIN
C3071
0.1u
16
IC3005
1
SW
2
GND
4
CTRL
5
OV
3
FB
6
VIN
L3005
10u
C3068
0.1u
50
C3067
0.1u
50
R3020
5.1
R3022
100k
R3023
47k
R3021
15k
R3017
0
C3072
4.7u
16
C3073
10u
16
D3002
D3003
D3004
LF3001
23
4
1
R3027
0
R3028
0
R3029
0
R3030
0
R3031
0
R3032
0
R3033
0
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
C3051
0.1u
10
VLED-
VLED+
LCD_PWM
VDD3R3V
DG
C3074
0.1uF
10V
C3075
0.1uF
10V
C3076
100p
C3034
10uF
16V
R3025
100k
DG
C3032
3300pF 50V
R3024 22k
C3036
0.047uF 16V
DG
DG
C3024
22uF
6.3V
C3025
22uF
6.3V
C3037
22uF
6.3V
C3038
22uF
6.3V
C3029
0.1uF
16V
L3004
15uH
R3015
1%
62k
R3016
1%
11.8k
DG
DG
IC3004
2
VIN
8
SS
3
SW
4
GND1
5
FB
7
EN
1
BOOT
6
COMP
9
GND2
C3035
10uF
16V
C3016
0.1uF
16V
L3002
10uH
R3004
1%
47k
R3008
1%
15k
DG
DG
5V
IC3003
2
VIN
8
SS
3
SW
4
GND1
5
FB
7
EN
1
BOOT
6
COMP
9
GND2
C3039
10uF
16V
C3023
10uF
16V
R3014
100k
DG
C3018
3300pF 50V
R3009 12k
C3040
0.047uF
16V
DG
DG
C3012
22uF
6.3V
C3011
22uF
6.3V
C3042
22uF
6.3V
C3041
22uF
6.3V
C3017
3300pF 50V
R3006 3.3k
C3060
0.1uF 16V
DG
DG
C3010
22uF
6.3V
C3009
22uF
6.3V
C3061
22uF
6.3V
C3062
22uF
6.3V
C3014
0.1uF
16V
L3001
3.3uH
R3003
1%
6.8k
R3005
1%
18k
DG
DG
5V
IC3002
2
VIN
8
SS
3
SW
4
GND1
5
FB
7
EN
1
BOOT
6
COMP
9
GND2
C3059
10uF
16V
C3020
10uF
16V
R3013
100k
DG
C3066
NC
C3052
NC
C3053
NC
C3054
NC
C3055
NC
C3031
NC
C3027
NC
C3058
NC
C3057
NC
C3056
NC
C3043
NC
C3006
NC
C3004
NC
C3007
NC
D3001
NC
R3001
NC
C3002
NC
DG
DG
DG
C3033
NC
C3028
NC
C3022
NC
C3015
NC
C3013
NC
C3019
NC
DCDC_3.3V
REG_1.5V
DCDC_1.1V
DCDC_40mA
DCDC_5.0V
POWER
MAIN Board No.3
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