DOWNLOAD Panasonic KX-NT400RU Service Manual ↓ Size: 4.33 MB | Pages: 108 in PDF or view online for FREE

Model
KX-NT400RU
Pages
108
Size
4.33 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / IP PROPRIETARY TELEPHONE
File
kx-nt400ru.pdf
Date
PREV: Panasonic KX-NT366RU / KX-NT366RU-B (serv.man2) Service Manual / Supplement

Panasonic KX-NT400RU Service Manual ▷ View online

77
KX-NT400RU
13 Exploded View and Replacement Parts List
13.1. IC Data
13.1.1. IC1 (VoIP)
Pin.No. 
Terminal Name
I/O Setting
Contents of Control
Remark 
1
DGND1 
-
Digital system ground
2
A15 O
Address 
bus
3
A14
O
Address bus
4
A13 O
Address 
bus
5
A12
O
Address bus
6
A11
O
Address bus
7
A10
O
Address bus
8
A9
O
Address bus
9
A8
O
Address bus
10
A7
O
Address bus
11
A6
O
Address bus
12
A5
O
Address bus
13
NC13
-
Not internal connection
Connecting to GND 
14
TEST3 I
Test 
pin
15
TEST2 I
Test 
pin
16
TEST1
I
Test pin
17
NC17
-
Not internal connection
Connecting to GND 
18
PVDD1.8_18 
-
PLL power supply (+1.5V)
19
PGND19 -
PLL 
ground
20
VCNT1
O
PLL1 VCO control
21
nWAIT/PB12
I
Not in use
22
nRSTOUT O
Reset 
output
23
TEST0
I
Test pin
24
ROMBUSW
I
Memory bus width selection
25
A4
O
Address bus
26
A3
O
Address bus
27
A2 O
Address 
bus
28
A1 O
Address 
bus
29
A0 O
Address 
bus
30
nMWRL
O
External memory write signal
31
nMWRH 
O
External memory write signal
32
nMRD
O
External memory read signal
33
nRESET
I
Reset input
34
XTAL1
I
Crystal oscillator connection (8.192MHz) 
35
XTAL2
O
36
DVDD3.3_36
-
Digital system power supply (+3.3V)
37
DGND37
-
Digital system ground
78
KX-NT400RU
38
nCS0
O
External memory chip select 0
39
nCS1/PD4
I
Not in use
Connecting to GND 
40
DQM3
O
SDRAM byte mask 3
41
DQM2
O
SDRAM byte mask 2
42
nDRCS1
O
SDRAM chip select 1
43
nDRCS0
O
SDRAM chip select 0
44
nRAS
O
Row address strobe
45
nCAS
O
Column address strobe
46
DRCLK
O
SDRAM clock 
47
DRWE
O
SDRAM write write 
48
DQM1
O
SDRAM byte mask 1
49
DQM0
O
SDRAM byte mask 0
50
M1_TXEN
O
MAC1 transmit enable
51
M1_TXCLK
I
MAC1 transmit clock
52
M1_TXD3
O
MAC1 transmit data
53
M1_TXD2
O
MAC1 transmit data
54
DVDD1.8_54
-
Digital system power supply (+1.5V) 
55
DGND55
-
Digital system ground
56
M1_TXD1
O
MAC1 transmit data 
57
M1_TXD0
O
MAC1 transmit data
58
NC58
-
No internal connection
Connecting to GND 
59
M1_RXCLK
I
MAC1 receive clock
60
M1_RXDV
I
MAC1 receive data valid
61
M1_RXER
I
MAC1 receive data error
62
M1_RXD3
I
MAC1 receive data
63
M1_RXD2
I
MAC1 receive data
64
M1_RXD1
I
MAC1 receive data
65
M1_RXD0
I
MAC1 receive data
66
M1_CRS
I
MAC1 carrier sense
67
M1_COL
I
MAC1 collision detection
68
M1_MDC
O
MAC1 MII control clock
69
M1_MDIO
I/O
MAC1 MII control data
70
NC70
-
No internal connection
Connecting to GND 
71
M2_TXEN
O
MAC2 transmit enable
72
DVDD3.3_72
-
Digital system power supply (+3.3V)
73
DGND73
-
Digital system ground
74
M2_TXCLK
I
MAC2 transmit clock
75
M2_TXD3
O
MAC2 transmit data
76
M2_TXD2
O
MAC2 transmit data
77
M2_TXD1
O
MAC2 transmit data
78
M2_TXD0
O
MAC2 transmit data
79
M2_RXCLK
I
MAC2 receive clock
80
M2_RXDV
I
MAC2 receive data valid
81
M2_RXER
I
MAC2 receive data error 
82
M2_RXD3
I
MAC2 receive data
83
M2_RXD2
I
MAC2 receive data
84
M2_RXD1
I
MAC2 receive data
85
M2_RXD0
I
MAC2 receive data
86
M2_CRS
I
MAC2 carrier sense
87
M2_COL
I
MAC2 collision detection
88
M2_MDC
O
MAC2 MII control clock
89
M2_MDIO
I/O
MAC2 MII control data
90
DVDD1.8_90
-
Digital system power supply (+1.5V)
91
DGND91
-
Digital system ground
92
BIGEND
I
Endian selection
93
DIVCK/PB11
I
Not in use
Connecting to GND 
94
PCMIN/PB10
I
PCM data input
95
PCMCLK/PB9
O
PCM clock output
96
PCMSYNC1/PB8
O
PCM synchronous signal 1 
97
PCMSYNC2/PB7
O
PCM synchronous signal 2 
98
PCMOUT/PB6
O
PCM data output
99
XDACK/PB5
I
Not in use
Connecting to GND 
100
DSOD/PB4
O
Status output for IC101
101
DWR/PB3
O
Reset output for IC5 
102
DCK/PB2
O
Not in use
103
DSL/PB1
O
Reset output for IC101
104
DSID/PB0
O
Not in use
105
DBG15/PA15
O
Handset/Headset receive mute output
H:Mute ON, L:Mute OFF
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
80
KX-NT400RU
174
D20 I/O
Data 
bus
175
D19 I/O
Data 
bus
176
D18 I/O
Data 
bus
177
D17 I/O
Data 
bus
178
D16 I/O
Data 
bus
179
NC179 
-
No internal connection
Connecting to GND 
180
DVDD3.3_180
-
Digital system power supply (+3.3V)
181
DGND181
-
Digital system ground
182
D15 I/O
Data 
bus
183
D14 I/O
Data 
bus
184
D13 I/O
Data 
bus
185
D12
I/O
Data bus
186
D11 I/O
Data 
bus
187
D10 I/O
Data 
bus
188
D9 I/O
Data 
bus
189
D8 I/O
Data 
bus
190
D7
I/O
Data bus
191
D6 I/O
Data 
bus
192
D5
I/O
Data bus
193
D4 I/O
Data 
bus
194
D3 I/O
Data 
bus
195
D2 I/O
Data 
bus
196
D1 I/O
Data 
bus
197
D0 I/O
Data 
bus
198
DVDD1.8_198 
-
Digital system power supply (+1.5V)
199
DGND199 
-
Digital system ground
200
nCTS1/PC4 
I
UART clear to send input
201
nDSR1/PC5 
I
UART data set ready input
202
nRTS1/PC11 
O
UART request to send output
203
nDTR1/PC12 
O
UART data terminal ready output 
Connecting to GND 
204
EXCK1/PC6 
I
Not in use
205
TXD1/PC13
O
UART data output
206
RXD1/PC7 
I
UART data input
207
A24 O
Address 
bus
208
A23
O
Address bus
209
A22
O
Address bus
210
A21
O
Address bus
211
A20
O
Address bus
212
A19
O
Address bus
213
A18
O
Address bus
214
A17
O
Address bus
215
A16
O
Address bus
216
DVDD216
-
Digital system power supply (+3.3V)
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