Read Panasonic KX-NT400RU Service Manual online
79
KX-NT400RU
106
DBG14/PA14
O
Speaker receive mute output
H:Mute ON, L:Mute OFF
107
DBG13/PA13
I
Not in use
Connecting to GND
108
DVDD3.3_108
-
Digital system power supply (+3.3V)
109
DGND109
-
Digital system ground
110
AVDD3.3_110
-
Analog system power supply (+3.3V)
111
AGND111
-
Analog system ground
112
HSIN
I
Handset input
113
MICIN
I
Microphone input
114
VREF
O
Analog reference voltage output
115
HSOUT
O
Handset/Headset output
116
SPOUT
O
Speaker output
117
AVDD3.3_117
-
Analog system power supply (+3.3V)
118
AGND118
-
Analog system ground
119
NC119
-
No internal connection
Connecting to GND
120
DBG12/PA12
O
Mic switch output for Handset or Headset
L:Handset, H:Headset
121
DBG11/PA11
O
Output for G722 switch
L:G722,H:Normal
122
DBG10/PA10
I
Headset detection
L:Headset detection
123
DBG9/PA9
O
Output for sidetone switch
124
DBG8/PA8
O
Output at error
125
NC125
-
No internal connection
Connecting to GND
126
DVDD3.3_126
-
Digital system power supply (+3.3V)
127
DGND127
-
Digital system ground
128
DBG7/PA7
O
Output at error
129
DBG6/PA6
O
Output at error
130
DBG5/PA5
O
Output at error
131
DBG4/PA4
O
Not in use
132
DBG3/PA3
O
Not in use
133
DBG2/PA2
O
Not in use
134
SPOUT_NS/PA1
O
Reset output for Sub CPU
135
HSOUT_NS/PA0
I
Input for debugging
136
SCK/PC15
O
SIO serial clock
137
SDI/PD0
I
SIO serial data input
138
SDO/PC14
O
SIO serial data output
139
IRQ3/PD3
I
Interrupt from PHY2
140
IRQ2/PD2
I
Interrupt from PHY1
141
IRQ1/PD1
I
DC-ALARM input
142
nCTS2/PC0
I
Input for debugging
143
nDSR2/PC1
I
Not in use
Connecting to GND
144
PVDD1.8_144
-
PLL power supply (+1.5V)
145
PGND145
-
PLL ground
146
VCNT2
O
PLL2VCO control
147
nCS2/PD5
I
Not in use
Connecting to GND
148
nCS3/PD6
O
Handset receive mute output
H:Mute ON,L:Mute OFF
149
nRTS2/PC8
I
Input for debugging
150
nDTR2/PC9
I
Input for debugging
151
EXCK2/PC2
I
Not in use
Connecting to GND
152
TXD2/PC10
I
Input for debugging
153
RXD2/PC3
I
Input for debugging
154
TRSTIN
I
JTAG reset
155
RTCK
O
JTAG synchronous clock output
156
TCK
I
JTAG clock input
157
TMS
I
JTAG mode selection
158
TDI
I
JTAG data input
159
TDO
O
JTAG data output
160
D31
I/O
Data bus
161
D30
I/O
Data bus
162
DVDD1.8_162
-
Digital system power supply (+1.5V)
163
DGND163
-
Digital system ground
164
D29
I/O
Data bus
165
D28
I/O
Data bus
166
D27
I/O
Data bus
167
D26 I/O
Data
bus
168
D25 I/O
Data
bus
169
D24 I/O
Data
bus
170
D23 I/O
Data
bus
171
D22 I/O
Data
bus
172
NC172
-
No internal connection
Connecting to GND
173
D21 I/O
Data
bus
Click on the first or last page to see other KX-NT400RU service manuals if exist.