Panasonic KX-NT680RU-B Service Manual ▷ View online
49
KX-NT680 Series
(2)PWR_RST
C4039
NC
R4022
NC
C4037
NC
C4038
NC
C4028
NC
R4023
NC
C4043
100p
50
C4010
NC
C4024
NC
C4025
NC
D4004
NC
D4005
NC
C4007
NC
C4003
NC
C4004
NC
C4013
NC
C4015
NC
C4014
NC
C4017
NC
C4035
NC
C4002
NC
C4008
NC
C4009
NC
C4090
NC
C4019
NC
C4032
NC
C4001
NC
R4001
0
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
D4012
NC
DG
DG
D4014
NC
DG
D4013
NC
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
R4020
2.2k
R4029
3.3k
C4034
0.1u
10
C4033
0.1u
10
R4021
2.2k
R4030
3.3k
VCC5V
VDD3R3V
VDD1R8V
VDD1R3V
AVCC3R3V
AG
MUTE
AG
VDD3R3V
C4076
220p
50
C4081
0.1u
C4073
220p
C4072
220p
C4080
0.1u
C4071
220p
C4079
0.1u
VDD1R3V
VDD1R3V
PWR_RST
C4056
100p
50
VDD1R8V
AG
C4052
0.1u
16
C4066
0.1u
16
VDD1R8V
VCC5V
C4077
0.1u
16
C4055 0.22u
10
C4069
0.22u
10
VDD1R3V
SINK_GND
DCDC_GND
SINK_GND
DCDC_GND
C4062
0.22u
10
C4064
0.22u
10
DCLS_GND
DCLS_GND
R4026
10k
C4065
0.1u
16
C4051
0.1u
C4054
0.1u
C4058
0.1u
C4059
0.1u
C4060
0.1u
C4061
0.1u
C4050
0.1u
C4053
0.1u
C4057
0.1u
VDD1R8V
C4068 0.1u
16
SINK_GND
AG
C4086
0.22u
C4087
0.22u
C4044
0.1u
16
SPP
SPM
PDN
003:6C
R4033
10
AVCC3R3V
VDD3R3V
AG
AG
R4019
330
MICBIAS
DCLS_GND
DCLS_GND
D4010
D4011
R4034
0
R4025
4.7k
3R3V
C4041
0.01u
CL_SPP
CL_SPM
CL_MICP
CL_MICM
CL_VDD18V
L4010
6.8u
D4007
D4008
D4009
MICBIAS
C4042
0.1u
10
MICBIAS
L4003
C4027
0.1u
C4026
0.1u
R4012
2.2k
R4013
2.2k
L4004
CL_HS_MICP
CL_HS_MICM
C4036
150p
50
CL_HS_SPP
CL_HS_SPM
R4011
330
R4024
0
D4006
D4002
R4016
12k
MICBIAS
CL_HEAD_IN
D4003
R4003
0
R4010
2.2k
R4004
0
CL_HEAD_OUT
R4009
330
R4035 10k
3R3V
L4001
L4002
CL_VDD12V
L4007
L4008
L4009
C4047
100p
C4049
100p
R4007
220
R4008
220
R4027
2.2k
R4028
2.2k
R4014
1k
R4015
1k
L4005
22u
L4006
22u
EXT_REG_CTL
C4011 4.7u
10
C4012 4.7u
10
C4018
22uF
C4046
10u 6.3
C4063
10u 6.3
C4078
10u
6.3
C4088
22u 6.3
C4089
22u 6.3
C4045
22u6.3
C4048
22u6.3
C4006
1000p
50
C4005
1000p
50
C4023
1000p
50
C4030 1000p
50
C4022
1000p
50
C4040
1000p
C4031 1000p
50
C4020
0.47u
C4021
10u
10
C4016
10u
10
C4029
10u
10
R4018
220
R4017
220
DCLS_GND
AG
C4067
10u
6.3
C4082 10u
6.3
C4070
1u
6.3
R4031
0
R4032
0
R4005
0
R4006
0
HEAD_DET
D4001
R4036
56k
JK4002
2
3
4
5
HEAD_B1_GND
HEAD_B3_DET
HEAD_B2_IN
HEAD_B5_OUT
HEAD_B4_CAP
HOOKSW_B3_SIG
HOOKSW_B2_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
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
LCD_PWM
DG
C4092
220p
AG
R4040
33
R4041
2.7k
L4011
C4093
100p
DG
C4094
100p
DG
C4095
100p
C4096
100p
DG
IC4001
1
VSS
2
VDD
3
CD
4
OUT
IC1001
U16
VCC5V_DCLS0
U17
VCC5V_DCLS1
T15
SINK_DCLS0
T16
SINK_DCLS1
V16
VCC33SW_DCLS
W17
VDDSW_DCLS
R15
VDD12_DCLS
U15
VDD18_DCLS
V19
PAOUTP
V18
PAOUTN
M18
DIFFIN0P
M17
DIFFIN0N
P15
MICPWR0
P16
SINGIN1
N15
SINGIN0
N14
MICPWR1
L19
DIFFIN1P
M19
DIFFIN1N
K18
AMPOUT0
K19
AMPOUT1
L17
AMPOUT2
L18
AMPOUT3
M15
VCC_AMP_OUT
M16
GND_AMP_OUT
R13
FORCEMUTE
T17
TPX1
P13
TPX2
R18
TPY1
T18
TPY2
P18
TPS
V12
RSTN
T12
TEST_ANA
L16
IF_CLK_IF
P14
VREF
D12
VDD0
E5
VDD1
E6
VDD2
E8
VDD3
H5
VDD4
K13
VDD5
K5
VDD6
M10
VDD7
M8
VDD8
N12
VDD9
G5
VDDIO0
H6
VDDIO1
J5
VDDIO2
K12
VDDIO3
L6
VDDIO4
J6
GND10
H8
GND9
L7
GND8
K11
GND7
H11
GND6
K8
GND5
J8
GND4
J11
GND3
H10
GND2
J9
GND1
G13
PLL3_DVDD
H13
PLL3_AVSS
L13
PLL3_AVDD
E11
PLL2_DVDD
G12
PLL2_AVSS
F11
PLL2_AVDD
N10
VDDIO5
M13
VDDIO_APU
N9
VDDIOC
J7
GND35
G10
GND33
H12
GND34
G8
GND32
G6
GND30
K6
GND29
E9
GND28
L8
GND27
J10
GND26
L12
GND25
G9
GND24
M12
GND23
G7
GND22
K7
GND21
M9
GND20
K9
GND19
L11
GND18
M11
GND17
A1
GND16
L10
GND15
L9
GND14
H9
GND13
H7
GND12
K10
GND11
E13
PLL1_DVDD
F12
PLL1_AVSS
F13
PLL1_AVDD
U14
VCC5V_DCDC
W15
DCDC_VRP
T14
DCDC_VSENS
V14
COIL_DCDC
W14
SINK_DCDC
W13
GND_DCDC
V15
VDD18_DCDC
W16
VCC33_DCDC
N13
VDD_ANA
V17
VCC_ANA0
W12
VCC_ANA1
N16
VCCA
T13
EXT_REG_CTL
U13
PWM0
V13
LEDSINK1_PWM1
R14
LEDSINK2
R19
DCIN0
U19
DCIN1
P17
DCIN2
W19
DCIN3
U12
DCINS
T19
GNDI
N17
GNDA
R16
VSS1
R17
VSS2
U18
VSS3
W18
VSS4
N18
XI13M
P19
XO13M
N19
BCLK
R4042
100
MIC4001
1
2
SP
HEADSET
MIC
HS_MIC
HS_SP
BBIC_ANALOG
MAIN Board No.4
50
KX-NT680 Series
(24) jabra EHS - primary side
EHS(jabra)_TX
(23) plantronics EHS - primary side
PSB_IN/OUT
(25) jabra EHS - primary side
EHS(jabra)_RX
(20) PSB_OUT
, PSB_IN
(21) JABRA_UTX
(22) JABRA_URX
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
SIGN00537
5V
D5002
Q5001
L2SW_3R3V
Q5004
C5002
18p
R5015
2.2k
D5001
C5001
18p
D5003
Q5003
4.7k
10k
Q5002
IC5002
1
4
6
5
3
IC5004
1
4
6
5
3
PSB_OUT
ASIC_CLK
ASIC_RST
I2C_SDA
PSB_IN
IC5005
1
INTOUT
2
RESET
14
PSBIN
15
PSBOUT
3
SDL
16
VCC
4
SDA
13
EHS_DET/GPIO3
5
CLKIN
12
UARTTX1
6
CLKOUT/GPIO2
11
UARTRX1
7
TEST
10
GPIO0/UARTTX2
8
GND
9
GPIO1/UARTRX2
EHS_DET
VDD3R3V
I2C_SDA
ASIC_RST
JABRA_URX
JABRA_UTX
I2C_SCLK
ASIC_INT0
C5007
0.1u
ASIC_CLK
ASIC_INT
C5008 0.01u
I2C_SCLK
L5001
Q5005
10k
10k
R5004
1k
R5010
10k
R5011
150
R5008
330
R5006
10k
R5009
330
R5012
150
R5005
0
R5013
10k
R5007
33k
R5002
22
R5003
22
C5006
4.7u
C5004
0.1uF 10V
C5003
0.1uF
10V
EHS_B1_TX
EHS_B2_7.5V
EHS_B3_RX
EHS_B4_GND
DG
DG
DG
DG
DG
DG
DG
DG
DG
DUMMY_B1_NC
IC5003
1
4
2
3
IC5001
14
23
R5014
NC
R5001
NC
C5005
NC
DG
R5016
NC
VDD3R3V
EHS_1
EHS_2
ASIC_EHS
MAIN Board No.5
51
KX-NT680 Series
(11) (12) (13)
LCD_DE, LCD_PCLK
(14)
LCD_R[3-7],G[2-7],B[3-7]
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
LCD_R[0]
LCD_R[1]
LCD_R[2]
LCD_R[3]
LCD_R[4]
LCD_R[5]
LCD_R[6]
LCD_R[7]
LCD_G[1]
LCD_G[2]
LCD_G[3]
LCD_G[4]
LCD_G[5]
LCD_G[6]
LCD_G[7]
LCD_B[0]
LCD_B[2]
LCD_B[3]
LCD_DE
LCD_B[4]
LCD_VSYNC
LCD_EN
LCD_B[5]
LCD_HSYNC
LCD_B[6]
LCD_PCLK
LCD_PCLK
LCD_G[0]
LCD_B[1]
LCD_B[7]
LCD_EN
LCD_HSYNC
LCD_VSYNC
LCD_DE
R6006
560
R6007
560
R6001
68
R6003
560
R6002
330
R6005
560
R6004
560
3R3V
LED_RED_SP
LED_GRN_RINGER
LED_RED_RINGER
LED_RED_STORE
LED_GRN_INCOM
LED_RED_FWD
LED_RED_CONF
LED_RED_MUTE
D6003
R
D6004
R
D6005
R
D6006
R
D6007
R
DG
Q1001
4.7k
47k
Q1002
4.7k
47k
DG
D6002
R
G
12
4
3
C6002
0.1uF
50V
LCD_PCLK
VDD3R3V
CN6001
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
C6001
0.1uF
50V
VLED+
VLED-
DG
LCD
LCD_DE
C6005
0.1uF
16V
C6006
1uF
10V
C6003
1uF
50V
LCD_VSYNC
L6001
LCD_EN
DG
LCD_HSYNC
DG
C6034
33p
C6033
33p
C6032
33p
C6031
33p
C6030
33p
C6029
33p
C6028
33p
C6027
33p
C6026
33p
C6022
33p
C6021
33p
C6020
33p
C6019
33p
C6018
33p
C6017
33p
C6014
33p
C6013
33p
C6012
33p
C6011
33p
C6010
33p
DG
DG
D6001
G
D6014
R
LED_L3_R
LED_L2_G
LED_L1_VDD
LED_B3_R
LED_B2_G
LED_B1_VDD
3R3V
R6016
0
DG
C6035
100p
C6036
100p
C6037
100p
C6038
100p
C6039
100p
C6040
100p
R6008
82
C6004
NC
C6025
NC
C6024
NC
C6023
NC
C6016
NC
C6015
NC
C6009
NC
C6008
NC
C6007
NC
DG
R6015
NC
R6012
NC
R6013
NC
R6014
NC
LED
LCD
MAIN Board No.
52
KX-NT680 Series
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
KEY_OUT[0-5]
KEY_IN[0-7]
KEY_IN[0]
KEY_IN[2]
KEY_IN[3]
KEY_IN[4]
KEY_IN[1]
KEY_IN[5]
KEY_IN[6]
KEY_OUT[0]
KEY_OUT[1]
KEY_OUT[3]
KEY_OUT[4]
KEY_IN[7]
KEY_OUT[5]
KEY_OUT[2]
KEY_IN[0-7]
KEY_OUT[0-5]
SW7036
SOFT4
12
SW7014
4
12
SW7032
#
12
SW7015
1
12
SW7052
PAUSE
12
SW7033
9
12
SW7016
SOFT2
12
SW7053
CANCEL
12
SW7035
3
12
SW7005
HOLD
12
SW7034
6
12
SW7006
SOFT1
12
SW7025
2
12
SW7022
0
12
SW7041
TRANSFER
12
SW7003
MESSAGE
12
SW7011
FLASH
/RECALL
12
SW7001
REDIAL
12
SW7023
8
12
SW7012
*
12
SW7026
SOFT3
12
SW7024
5
12
SW7043
ENTER
12
SW7013
7
12
SW7044
DOWN
12
SW7054
RIGHT
12
SW7045
UP
12
SW7055
LEFT
12
SW7042
FWD
/DND
12
SW7031
SP-PHONE
12
SW7004
INTERCOM
12
SW7002
MUTE
/AUTO ANS
12
SW7051
CONF
12
SW7021
AUTO DIAL
/STORE
12
SW7019
FF8
12
SW7029
FF9
12
SW7047
FF5
12
SW7017
FF2
12
SW7007
FF1
12
SW7057
FF6
12
SW7009
FF7
12
SW7059
FF12
12
SW7027
FF3
12
SW7049
FF11
12
SW7037
FF4
12
SW7039
FF10
12
SW7046
SOFT5
12
KEY
MAIN Board No.7
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