Panasonic KX-UT113RU / KX-UT113RU-B / KX-UT123RU / KX-UT123RU-B (serv.man3) Service Manual ▷ View online
73
KX-UT113RU/KX-UT113RU-B/KX-UT123RU/KX-UT123RU-B
13 Printed Circuit Board
13.1. Main Board
13.1.1. Component View
RESET
USB_M
USB_V+
USB_P
A
TDI2
R425
R426
R428
MDIO
R437
R438
R438
R439
AT
M
M
S
R440
R441
R442
C406
R443
C407
C408
R444
CL101
CL102
CL103
CL104
CL105
R449
CL106
CL108
R450
R451
R452
R453
R454
R455
LF401
R456
LF402
LF403
LF404
LF405
RA511
C421
F301
RA512
DG2
C427
C428
BKL
T_A
C429
C430
BKL
T_K
C435
C436
C437
C438
C439
DL301
DL302
DL303
C440
AT
D
D
O
2
C443
C444
DL501
C447
C448
FW_INT0
C449
FW_INT1
C450
ST0
C451
ST1
ST2
ST3
C454
C455
L101
D401
L102
D403
D405
D406
D407
Q503
L107
D408
L108
Q505
L111
L112
D412
L113
D413
L114
D414
D415
L1
16
L117
L502
T402
T403
JOINT301
L513
L514
L515
L516
L517
JK101
R101
R102
JK301
MDCLK
R301
R304 R305
R306
R501
R502
R504
CN101
R506
TXEN
R515
R328
R329
CN503
CN504
R521
R522
R330
R524
R331
C101
C102
R143
R144
R147
C301
AT
C
C
K
2
C304
R341
C305
C
111
R342
C306
C307
R344
C308
C309
R152 R153
C1
18
C501
C502
R157
C503
C504
C310
C505
C31
1
R541
C506
R542
C312
R543
C313
C507
C508
C315
C121
C316
LF301
X501
C320
C321
R552
C322
R553
C324
R554
C325
C131
C326
PNLB1784Z -GW
A
C328
C134
C329
C136
F401
C330
R560
C331
R562
C333
R564
C141
R566
C336
C143
C337
C530
C531
R570
R571
R572
R573
R574
C538
R575
C539
C345
R576
C540
C544
C545
R581
C546
R583
R584
C549
D101
D102
R587
A
TCK
R588
R589
C169
R590
R591
C555
R592
C556
D302
D303
C170
Q401
C171
R595
D305
A
TDI
C172
D306
D308
C174
C175
C176
A
TDO
C177
C178
C560
C179
C561
D501
D502
C563
D503
C564
C180
C181
IC101
C183
C187
C570
L406
L408
C574
IC301
C575
C576
IC303
C578
C579
IC305
L41
1
IC501
IC505
L420
USB_GND
L421
L422
L423
JK401
JK402
A
TMS2
L303
L301
KX-UT113RU/KX-UT123RU MAIN BOARD COMPONENT VIEW
PC
BBIC
RESET
LAN
HANDSET
JACK
JACK
1
1
8
1
12
4
1
8
1
15
Test Point
ST0-ST4
DG2(GND)
C564(VCCDSP)
CN504 pin7
(LCD:3.3V)
(LCD:3.3V)
CN504 pin2
(SCLK)
Q401 pin4(gate)
8
5
4
1
74
KX-UT113RU/KX-UT113RU-B/KX-UT123RU/KX-UT123RU-B
13.1.2. Flow Solder Side View
KX-UT113
RU/KX-UT123RU MAIN BOARD BOTTOM VIEW
R401
R402
R403
R405
R406
E_RST
R408
R409
R410
R41
1
R412
R413
R414
R415
R418
MAIN_OSC
R420
R421
USBG
R423
R424
R427
USBM
R429
USBP
R430
USBV
R435
R436
C402
C403
C404
C409
R445
R446
R447
R448
3.3V
PWRGND
C410
X401
C411
RA501
C412
RA502
C413
RA503
RA504
RA521
C415
RA505
RA506
C417
RA507
RA508
C418
C424
1
36
12
25
C425
DL101
SPN
SPP
C431
C432
C433
C434
LCD_A0
C441
C442
C452
C453
C457
C458
C459
C460
C462
L103
DG
C463
L104
C464
L105
L106
Q504
D409
D420
D421
D410
D41
1
UAR
T_RX
L501
L504
IC401
IC402
LCD_CS
TXD0
TXD1
TXD2
TXD3
R106
R107
R108
R109
R1
12
R118
R1
19
R310
IC304
R505
HESSPOUT2
R313
R120
R508
R121
R122
R123
R124
R125
R126
R127
R128
R129
R51
1
R512
R514
R516
R517
R130
LCD_RST
R131
R132 R133
R137
R520
R140
C105
R141
C106
R142
C107
C108
C109
R148
R149
C1
10
C113
R537
R538
C1
15
C117
RA403
C120
R544
C509
C122
R546
C123
R547
C124
C125
C126
C127
C128
C129
C513
1
54
28
27
C514
R550
UAR
T_TX
C515
C516
C517
C130
C518
C519
R556
R557
C135
R559
C137
C138
C139
C524
C525
C526
R563
C527
PoEDCOUT
C528
C529
R567
C146
C147
DCIN1
C532
C533
C534
C536
C541
C542
C543
C160
R585
C161
R586
C163
C164
D105
C165
D106
C166
C167
D107
C550
C168
D108
C551
C552
C553
C554
RA522
C557
C558
C559
Q402
R596
D307
R340
R336
Q403
C173
TXCLK
HESGND
C567
C568
C569
IC103
V0
L401
IC105
L402
L403
L404
L407
L409
PoEINAN
5V
L410
L412
L413
L414
IC502
IC503
IC504
XV0
JOINT400
PoEINBP
MIN
MIP
PoEINAP
PoEINBN
VCC_2V
HESMIC2
C456
D103
D104
FB1V
VCC2V
DG
PHY
SPP
SPN
MAINOSC
FLASH
1
9
16
IC503 pin38
(SDCLK)
IC504 pin16
(SCLK)
8
16
9
8
1
SDRAM
DCIN1
PoEDCOUT(12V)
5V
3.3V
75
KX-UT113RU/KX-UT113RU-B/KX-UT123RU/KX-UT123RU-B
13.2. Ope Board
13.2.1. Component View
CN205
R222
R223
R224
#
*
REDIAL
0
C201
34
33
23
22
12
11
1
1
12
44
1
C202
2
C203
3
C204
4
C205
5
C206
6
C207
78
9
C21
1
C213
C217
C218
HOOK_SW
C221
C226
C241
C243
D203
SP-PHONE
FWD/DND
ENTER
LEFT
IC205
D234
AG_P
AD
D245
D246 D247
D248
D249
DOWN
SOFT1L
SOFT1R
CANCEL
SOFT2L
SOFT2R
SOFT3L
J236
SOFT3R
SOFT4L
J243
SOFT4R
J253
J254
RA201
RA202
J262
J269
J273
J276
FLASH/RECALL
TRANS
RIGHT
AUT
O_ANS
L208
HOLD
L209
L210
L211
L212
UP
MESSAGE
CONF
R201
R202
R203
R204
2
5
1
4
3
GRA
Y
GND
C1
D1
MIC+
ORG
BLUE
MIC-
R1
R2
PbF
PbF
KX-UT113
RU/KX-UT123RU OPERATION BOARD
ASIC
IC205 pin1
(ASICCLK)
(ASICCLK)
76
KX-UT113RU/KX-UT113RU-B/KX-UT123RU/KX-UT123RU-B
14 Appendix Information of Schematic Diagram
Note:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
1. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
1. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
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