Panasonic KX-NT136RU Service Manual ▷ View online
13 IC12 MII RX (when receive a packet to Ethernet port)
14 IC12 MII TX (when send a packet to Ethernet port)
15 IC7 and IC1 PCM communication waveform
16 IC301 switching regulator
IC301 pin2 SW
IC301 pin6 BOOST
IC301 pin12 FB
IC301 pin10 BIAS
IC7 pin19 PSYNC
IC7 pin20 BCLK
IC7 pin17 DOUT
IC7 pin18 DIN
IC12 pin77 SMTXC
IC12 pin76 SMTXER
IC12 pin75 SMTXD0
IC12 pin71 SMTXEN
IC12 pin80 SMRXC
IC12 pin81 SMRXDV
IC12 pin85 SMRXD0
IC12 pin87 SCRS
KX
-N
-N
T
136
RU
65
18 PRINTED CIRCUIT BOARD
18.1. MAIN BOARD
18.1.1. MAIN BOARD : COMPONENT VIEW
RA37
44
23
IC4
1
CN8
CN9
R132
1
16
17
32
33
48
49
64
C142
IC13
X3
F2
F0
F7
F6
F4
F1
E0
E1
E3
E5
A1
A0
A2
A3
A5
B5
D1.8V
A4
A6
A7
B1 B0 B2
B4 B3
E2
E4
F5
F3
Q9
1
1
A8
VOUT -1.2V
PA1.8V
1
4
1
22
CN2
22
21
1
2
ST5
V5
ST1
ST0
ST2
ST4
RA51
RA52
HT
1
38
39
64
65
1
2
128
103
IC12
C104
CN1
Q1
C566
PA3.3V
102
HT2
C3
R175
R3
L14
R169
C151
R162
C152
C11
C14
C13
C16
R21
C105
C563
L32
L31
C191
C564
C107
C565
C111
L7
C181
C182
C573
C541
C190
R87
R92
C110
R85
ST3
R22
L13
R174
R172
R171
R173
C6
C25
C23
R17
R14
C21
C33
C27
RA43
R12
R131
R146
C527
C537
R149
C538
C525
C524
C521
R137 R138 R139 R140 R141 R142 R143 R144
C526
R145
C141
C143
R133
R147 R148
R136
R135
C187
C528
C185
C186
C529
C530
C531
R110
C135
C534
C533
C67
R70
R60
R68
R69
C93
C416
C78
R61
C73
R53
R52
R44
C64
SP2
C88
L4
C86
R45
C61
C69
R58 R59
L5
C406
C417
C407
C94
C89
C418
C507
C58
C415 C404 C405
R39
C90
C506
C76
C65
C410
C414
C420
C511
C170
C171
L26
C62
R40
C59
C48
C46
C53
C54
R41
C411
C409
C413
R48
C49
C44
C47
R34
R32
R35
R36
L21
C555
C163
R33
C57
C56
C51
C52
C50
C162
C510
C513
C161
C509
C42
R32
L1
C508
L27
R47
R46
C66
C536
C532
X2
CN6
D3.3V
18
D3.8V
IC10
IC7
IC11
1
C43
C41
C45
C169
13
12
1
37
48
R31
SP3P
SP3M
R67
C401
C167
C505
C504
R42
R43
C63
C60
C72 R51
C68 R50
C85
C551
C173 C400
24
25
36
1
PoE-
PoE+
MIC3
CN4
CN7
CN3
C172
CN5
C408
IC8
1
R66
C512
1
1
1
4
1
2
2
9
AG3
C91
C55
C412
C77
R57
R56
C402
C403
C419
R38
DG
1
C188
C535
R134
R15
R10
19
C22
C24
IC6
R6
C32
C31
C19
C34
C30
D1
D2
C29
C18
R9
C28
C20
R16
R11 R13
RA36
RA35
RA34
RA33
L15
R176
R170
R177
R7
R24
RA44
RA45
RA54
IC5
R19
C36
C102
C561
C103
C562
R81
R82
R25
R1
R83
C106
C569
R84
RA55
C570
C26
R18
C109
C568 R118
C192
C193
C114
C572
C189
L8
R93
R112
R101
R100
R99
R98
R97
R96
R95
R102
R103
C119
C121
L501
C131
C130
C132
R111
IP1
C129
R109
R104
R105
R108 R107
R106
L502
C123
C126
C124
C542
C574
C184
C183
C118
C117
C120
C122
C116
D15
C553
C554
C502
C95
L9
L2
C92
C87
L3
C503
C128
D16
D17
D11
D12
C567
C112
C115
L6
C113
R94
R116
C108
C571 R119 R120
R501
R114
R113
RA3
R117
C9
C557
R86
R26
C12
C35
C15
C153
C154
R5
R4
L16
C7
R2
C8
C10
C17
IC1
C556
L12
L11
C1
C552
C4
C5
RA31
RA1
RA30
RA16
RA17
RA41
RA27
IC2
IC3
1
86
1
24
48
25
44
43
RA21
RA22
RA11RA12 RA13RA14
RA19
RA20
RA26
RA28
RA29
X1
R20
R161
R166
R167
R168 R163 R164 R165
L503
L504
L25
C2
RA38 RA39
RA40
RA42
RA24
RA24
RA25
D18
D19
D20
D22
D21
D13
D14
D9
D10
JK3
1
8
1
16
8
9
T2
IC9
L400
AG2
MIC2
1
1
16
8
9
T1
C501
R502
MIC+
MIC-
SP1
AG1
D5
Q10
RA2
1
C125
C127
D6
IC15
IC14
1
JK2
1
8
JK1
1
4
C101
C134
C133
Q11
Q5
Q6
Q7
Q8
Q13
Q12
Q14
1
1
1
1
1
1
1
PSUP1472Z
A
PbF
KX-NT136RU MAIN BOARD COMPONENT VIEW
66
KX-NT136RU
18.1.2. MAIN BOARD : BOTTOM VIEW
HOOK
SW160
SW144
SW145
SW146
SW143
SW143_2
SW145_2
SW146_2
SW144_2
CONF
SW135
SW136
FWD/DND
SW137
SW119
SW120
SW121
SW122
SW123
SW124
SW132
SW131
SW130
SW129
SW128
SW127
PAUSE
S1
S2
S3
S4
D127
SW138
ICM
D129
SW139
AUTOANS
D125
SW140
AUTODIAL
D128
D126
SW126
SW134
SW142
SW141
SW133
SW125
SW101
9
SW109
8
SW110
SW117
SW118
SW102
D112
CO12
D111
CO11
D110
CO10
D109
CO09
D108
CO08
D107
CO07
D106
CO06
D105
CO05
D104
CO04
D103
CO03
D102
CO02
D101
CO01
D113
CO13
SW111
D114
CO14 SW112
D115
CO15 SW113
D116
CO16 SW114
D117
CO17 SW115
D119
CO19 SW103
D120
CO20 SW104
D121
CO21 SW105
D123
CO23 SW107
D124
CO24 SW108
D122
CO22
SW106
D118
CO18 SW116
PSUP1472Z
A
PbF
KX-NT136RU MAIN BOARD BOTTOM VIEW
67
KX-NT136RU
18.3. POWER BOARD
18.2. SUB BOARD
18.2.1. SUB BOARD : COMPONENT VIEW
PbF
CN202
1
4
R203
R201
R202
PSUP1473Z-A
A
PbF
E3
E1
E2
E5
E4
E6
PSUP1473Z-B
2
JK201
PbF
HDMIC
HDSP
C201
R204
PSUP1473Z-C
5
3
4
1
CN203
B1
B2
B4
B3
A1
A3
A2
C2
C3
C1
1
9
KX-NT136RU SUB BOARD COMPONENT VIEW
18.2.2. SUB BOARD : BOTTOM VIEW
D203
SW4
SW6
RIGHT
D201
D202
ENTER
SW3
CN201
4
1
LEFT
SW11
D204
SP-PHONE
SW9
TRANSFER
SW8
HOLD
SW12
REDIAL
SW10
FLASH
SW7
MESSAGE
SW2
DOWN
UP
SW1
CANCEL
SW5
KX-NT136RU SUB BOARD BOTTOM VIEW
18.3.1. POWER BOARD : COMPONENT VIEW
CN302
GND
48VMINS
48VPLUS
3.8V
C303
C304
IC302
C310
R303
R301
D306
C309
58
41
C311
D303 C312
L301
IC301
D301
C306
R302
C308
L304
C301
C307
L303
KX-NT136RU POWER BOARD COMPONENT VIEW
R304
R305
R307
18
9
16
JK301
DCIN+
DCIN-
DCIN2+
DCIN2-
J301
L302
SW
D309
POWERFAIL
D308
D304
48V
D302
R306
D305
C305
D307
R311
C302
IC303
PSUP1474Z
A
PbF
18
17
17
2
1
1
68
KX-NT136RU
F
KXNT136RU
KXNT136RU