Read Panasonic KX-NT400RU Service Manual online
55
KX-NT400RU
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(2)
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(4)
(5)
(6)
(7)
(8)
KX-NT400RU : MAIN BOARD No.3 (2/2)
+
-
+-
4
6
5
8
7
AG
C341
K0.082
MUTE_SP2
002:11D
VCC_A33
1
AO
2
A-
3
A+
4
GND
5
B+
6
B-
7
BO
8
VCC
16
6
7
8
8
C340
K0.082
AG
C338
330p
C335
330p
L305
C318
K0.22
AG
C339
Z10
[2125]
C316
K0.22
Q302
E
C
B
VCC_A33
nG722
C342
K0.082
CN4
1
2
AG
AG
VCC_A33
C334
270p
AG
VCC_A33
AG
L303
AG
AG
AG
AG
C330
820p
AG
nG722
VCC_A33
1
VOUT1
2
VIN1
3
Bypass
4
GND
5
SHUTDOWN
6
VIN2
7
VOUT2
8
VDD
AG
Q305
E
C
B
AG
VCC_A33
AG
C315
K0.018
AG
C329
330p
AG
AG
AG
8
4
2
3
3
L304
C336
K1
L306
VCC_A33
10
S1
15
BN
1
B1
2
B0
AG
HS_MIC-
001:11H
HS_MIC+
001:11H
HS_SP
001:11H
HD_AG
001:11H
HD_SP
001:11H
HD_MIC 001:11H
CN7
NC
1
2
CN8
NC
1
2
HS_AG
001:11H
AG
Q303
E
C
B
R339
470
R329
18k
R333
10k
R335
1k
R340
150
R327
160k
R331
10k
R338
2.2k
R311
10k
R326
160k
R334
1k
R310
10k
R342
2.7k
R332
10k
R336
1k
R330
12k
R328 160k
R325
47k
R324
33k
R323
180k
R322
33k
R337
1.8k
L308
L309
L301
5
3
AG
C357
100p
C358
100p
C346
1000p
C359
1000p
C349
1000p
C345
1000p
C332
K0.01
C347
K0.01
C348
K0.01
C333
K0.01
C351
K0.1
C350
K0.1
C326
K0.1
C360
K0.1
C344
Z22
[2125]
C343
Z22
[2125]
SP3P
SP3M
MUTE_SP2
SP_MUTE1
HEADSET
002:10E
VCC_A33
AG
C337
K10/10V
[2125]
L311
0
L310
0
MIC3
C331
1000p
AG
MIC1+
SP1
MIC1-
SP2_2
MIC2_2
C361 100p
C362
100p
AG
Q306
E
C
B
R341
100k
R346
100K
VCC_A33
CN5
1
+
-
+
-
2
L302 0
L307 0
C369
100p
AG
C370
1000p
C
E
B
A
D
F
to SP
L:OFF
H:MUTE
H:MUTE
L:NC
H:Headset DET
H:Headset DET
to MIC
IC24
IC28
IC20
IC29
IC28
IC30
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