Panasonic KX-NS500 / KX-NS520 / KX-NS500RU / KX-NS520RU (serv.man2) Service Manual / Supplement ▷ View online
37
3.1.2.
Bottom View
MOTHER BOARD Bottom View
1
10
1
3
8
7
1
2
8
7
1
2
8
7
1
2
8
7
1
2
8
7
1
2
8
7
1
2
8
7
1
2
8
7
1
28
7
1
2
R207P
R208A
R208B
R208C
R208D
R208E
R208F
R208G
R208H
+40V_OP
C305A
R208I
C305B
R208J
R208K
R208L
R208M
R208N
R208O
R208P
R411
R209A
R209B
R209C
R209D
BAT
R209E
R209F
R209G
R209H
R209I
R209J
R209K
R209L
R209M
R209N
R209O
R209P
R422
R423
R424
R425
R426
C134A
C134C
C134E
CL302
R152A
R152C
R152E
C618
C426
C427
C136A
C429
C136C
C620
C136E
C622
+15V
C431
C432
+3.3V
C444
R210B
R210D
C448
R210F
R210H
R210J
R210L
R210N
R210P
C455
DG
D404
R158E
FG
C100A
C100B
C100C
C100D
R217A
C100E
C100F
R217C
R217E
R217G
R217I
R217K
R217M
C101A
C101B
R217O
C101C
C101D
R218A
C101E
C101F
C103A
C103B
C103C
C103D
D101A
C103E
D101B
C103F
D101C
D101D
D101E
D101F
+40V
C104A
C104B
C104C
C104D
R315A
C104E
R315B
C104F
R102A
R102B
R102C
R102D
R102E
C124A
R102F
C124C
C105A
PC100A
C124E
PC100B
C105B
13.824MHz
PC100C
C105C
PC100D
C105D
R316A
PC100E
C105E
D103A
R316B
D103B
C105F
PC100F
R542
D103C
D103D
D103E
R103A
D103F
R103B
R103C
R547
R103D
R548
R103E
R161A
R549
R103F
R161C
PC101A
TP1
C200A
R161E
TP2
PC101B
C200B
PC101C
TP3
C200C
PC101D
TP4
C200D
R550
R317A
C200E
PC101E
TP5
R551
R317B
PC101F
C200F
TP6
R552
TP7
C200G
TP8
C200H
R554
TP9
C200I
R555
C200J
R556
C200K
R557
C200L
R558
C200M
R559
C200N
C200O
C200P
C201A
C201B
C201C
PG
C201D
R560
R318A
Q201A
C201E
R318B
Q201B
C201F
Q201C
C201G
Q201D
C201H
Q201E
C201I
Q201F
C201J
Q201G
C201K
Q201H
C201L
Q201I
C201M
Q201J
C201N
Q201K
C201O
Q201L
C201P
C202A
Q201M
C202B
Q201N
C202C
Q201O
C202D
Q201P
C202E
C202F
C202G
C202H
R200A
C202I
R106A
R200B
C202J
R106B
R106C
C202K
R200C
TP10
R200D
R106D
C202L
R106E
R200E
TP11
C202M
C128A
C202N
R106F
TP12
R200F
C202O
TP13
R200G
C128C
TP14
C202P
R200H
R200I
TP15
C128E
TP16
R200J
R200K
R200L
R580
R200M
R581
R200N
R582
R200O
R220C
R583
R220D
R200P
R584
R201A
R201B
R201C
R201D
R201E
R201F
R201G
R201H
R201I
C204A
R201J
C204B
R201K
C204C
C204D
R201L
R201M
C204E
R201N
C204F
R201O
R221C
C204G
R201P
R221D
C204H
C204I
R108A
R108B
C204J
R108C
C204K
R108D
C204L
C204M
R108E
C204N
R108F
C204O
C204P
C205B
C205D
C205F
C205H
R203A
R109A
R203B
C205J
R109B
R203C
R109C
R203D
C205L
R109D
R203E
R109E
R109F
C205N
R203F
R203G
R203H
C205P
R203I
R203J
C206B
R203K
C206D
R203L
R203M
C206F
R203N
R203O
C206H
R203P
R204A
C206J
R204B
R204C
R204D
C206L
R204E
R204F
C206N
R204G
C206P
R204H
C207A
R204I
C207B
R204J
C207C
R204K
C207D
R204L
C207E
R204M
C207F
R204N
C207G
C207H
R204P
C207I
C207J
C207K
C207L
C207M
C207N
C207O
C207P
C208A
C208B
C208C
C208D
C208E
C208F
C208G
C208H
C208I
R206A
C208J
R206B
R206C
C208K
R206D
C208L
R206E
C208M
C208N
R206F
R206G
C208O
R206H
C208P
R206I
R206J
R206K
R206L
R206M
R206N
R206O
R206P
R207A
R207B
R207C
R207D
R207E
R207F
R207G
R207H
C304A
R207I
C304B
R207J
R207K
R207L
R207M
R207O
REF1
R711
R712
R553
R302A
R463
R469
R475
R484
R486
R496
C463
C464
C465
C466
C473
C474
C475
C477
C478
R502
R508
R509
R704
R707
R529
R530
R533
R534
TP_+2.5VD
R535
R536
R537
R589
R592
R593
R596
TP20
TP21
TP22
TP23
TP24
TP25
TP26
38
Changed from Original Service Manual as section 13.2.
3.2.
CPU Board (KX-NS500)
3.2.1.
Component View
CPU BOARD Component View
NS7XX
NS3XX
NS5XX
NS5XX
NS3XX
NS7XX
NS5XX
R404
R405
R211
R406
R212
R407
R213
R214
TP_CLKOUT1
R215
R216
R217
R217
R218
R601
R219
R602
R603
R604
R410
CN201
R605
R411
CN202
R606
R413
R414
R220
R609
R415
R221
R416
R417
R418
R224
R225
R226
R227
R610
R228
CN401
R611
R229
CN402
R612
R807
R613
R614
R615
TP_+1.5V_DDR
R618
R230
R619
R231
R232
R233
R234
R235
R236
R813
R237
R814
R238
R239
R622
R625
C201
TP_+15V
C202
TP_+1.8V_VRTC
R433
C203
R435
C205
R241
C206
R242
R438
C208
C209
R246
R247
R248
C401
R249
R826
C402
R827
C403
R828
C210
TP_+1.8V_VAUX1
C211
C406
C212
PWRON
R443
R444
C214
R250
CL101
R445
R251
CL102
R446
R252
TP_+3.3V_VMMC
CL103
R253
CL104
R254
CL105
R449
C601
R255
TP_+1.8V_LAN
CL106
R256
CL107
C603
R257
CL108
C604
R258
CL109
C605
R259
C412
C606
C607
R450
C608
R451
CL301
C609
R452
CL302
TP_+1.8V_VDAC
CL110
TP_+5VD
R260
CL111
R261
CL112
R262
CL113
R263
CL114
C610
R264
CL115
C611
R265
CL116
C612
R266
R267
R268
R269
R651
R652
C617
C618
C619
R657
R658
R464
R271
R659
R465
RTC_nINT1
R466
R467
R468
C620
R469
C621
C622
C623
R660
C624
R661
C625
R662
C626
R663
C627
R664
C628
R665
C629
R666
R473
R667
R668
R475
R669
R477
R479
R670
C634
C637
C638
R482
C644
D201
D202
D203
TP_CLK_16.384MHz
C656
C660
D601
D602
C663
D603
C664
D604
C665
IC201
IC202
IC203
L501
IC206
IC207
IC208
IC401
TP_DDR_VREF
IC601
IC602
IC603
IC606
L524
L525
L526
C697
TP_+1.8V_VDIG2
R102
L539
R105
R304
R307
R309
TP_DDR_VTT
R310
R507
R313
R508
R314
R509
TP_BAT_ALM
R315
R316
R318
R510
CN301
R511
R512
R513
R321
R516
R322
R323
R326
R327
R521
R522
R523
TP_+3.3V_VAUX2
R527
R528
C107
TP_+3.3VD_B
R530
TP_+2.5VD
C305
C306
R536
C307
C308
C309
C119
C501
C502
C503
TP_3.3V_BAT
C310
X301
C311
R542
C312
R543
X303
C313
X304
C314
C315
R546
C316
C123
R547
C317
R354
C124
R548
R355
R549
C319
R356
TP_+3.3VD
C129
TP_+1.2V_LAN
R550
R551
R551
R552
C322
R553
C130
C324
R555
C131
R361
R556
R557
R363
R558
R364
C328
R365
C329
R366
R367
C332
C333
R563
C334
C335
C338
R568
R376
C341
C342
C342
C344
C345
TP_+1.1V_CORE
C346
C347
C349
R386
R387
C350
DL601
C352
C353
TP_+1.1V_MPU
R391
R392
R393
R394
R398
D304
D305
D306
D306
D307
C751
C756
C757
CL_RXD
C758
Q601
C759
TP_+3.3V_VAUX33
TP_+1.8V_VPLL
IC101
IC102
IC103
IC104
L401
L402
L403
L404
CL_TXD
L405
IC303
IC305
T301
L601
L602
L603
L604
L605
TP_CLK_50MHz
IC501
IC502
IC503
RXD
TP_DG1
TP_DG2
TP_DG3
TXD
TP_DG4
TP_DG5
TP_DG6
R201
TP_+5VD_USB
R202
R203
R204
R205
R206
A
B
B
C
C
A
D
D
E
E
F
F
R833
R834
R835
R838
R842
R844
R845
R486
R891
2 1
4 0
2 0
1
1
4 1
8 0
4 0
16
3 0
1 5
1
1
15
16
30
2 5
1
2 4
4 8
2 2
2 3
4 4
1
8
14
7
1
8
14
1
7
8
7
1
2
4
5
6
1
9
5 6
1 2
1
A1
V1
V18
A18
A1
N1
A9
N9
A1
N1
N9
A9
4
1
8
5
1
4 8
3 3
3 2
64
1 7
1 6
49
REF2
3
5
7
12
13
24
2 5
3 6
37
48
1
PNLB2260X -GW
A
39
3.2.2.
Bottom View
CPU BOARD Bottom View
R210
R222
R223
R800
R801
R419
R802
R803
R804
R805
R806
R420
R421
R616
R422
R617
R423
R424
R425
R426
R427
R428
R429
R812
R620
R621
R623
R430
R431
R626
R432
R240
R434
R436
R437
R439
R440
R441
R442
C407
C213
C408
C409
R830
C602
C410
R640
X401
C411
R641
R642
R643
R644
R645
R646
R647
R648
R649
R456
C613
R650
C614
C615
C616
R653
R654
R655
R656
R270
R470
R471 R472
R474
R476
R478
C630
C631
C632
C633
C635
C636
R480
R481
C639
R483
R484
C640
C641
C642
C643
C645
C646
C647
C648
C649
C650
C651
C652
C653
C654
C655
D401
C657
C658
C659
L301
L302
L303
D605
C666
C667
C668
C669
C670
C671
IC402
IC403
IC604
C686
C687
IC607
IC608
C688
C689
C690
C691
C692
C693
C694
C695
C696
C698
C699
L532
L533
R101
R103
L538
R104
R106
R107
R108
R109
R301
R302
R303
R110
R305
R111
R306
R112
R308
R502
R311
R312
R317
R319
R320
R514
R515
R517
R324
R518
R325
R519
R328
R329
CN501
R330
R331
C101
R332
C102
R333
C103
R334
C104
R335
R529
C105
R336
C106
R337
R338
C108
R339
C109
R531
C301
C302
C303
R340
R534
C304
C110
R341
R535
C111
R342
C112
R343
R537
C113
R344
C114
R345
C115
R346
C116
R347
C117
R348
C118
R349
R540
C504
C505
C506
R350
C120
R351
C121
R352
C122
R353
C318
C125
LF301
C126
R357
C127
R358
C128
R359
C708
C320
C709
C321
C323
R554
R360
C325
C326
R362
C327
C710
R559
C711
C712
C713
C714
R368
C715
R369
C716
C717
R560
C718
C330
R561
C719
C331
R562
R370
R564
R371
R565
C336
R372
R566
C337
R373
R567
C720
R374
C339
C721
R375
R569
C722
C723
R377
R378
C724
R379
C725
C726
C727
C340
C728
C729
C343
C730
C348
RXD_1
C731
C732
C733
C734
R388
C735
R389
C736
C737
C738
C739
C351
DL602
R390
C740
R395
C741
R396
C742
R397
C743
C744
R399
C745
C746
C747
C748
D301
C749
D303
D308
C750
D309
C752
C753
C754
C755
Q602
C760
C761
C762
IC301
IC302
IC304
T302
IC306
L606
L607
IC504
TXD_1
TP_DG7
R207R208
R209
R831
R832
R846
R847
R848
R849
R890
R836
R837
R839
R840
R841
R843
R485
R487
R380
1
7
1
8
14
1
3
4
5
1
7
8
2
4
1
6
5
41
40
80
1
1
1
DIP
REF1
40
Changed from Original Service Manual as section 13.2.
3.3.
CPU Board (KX-NS520)
3.3.1.
Component View
CPU BOARD Component View
1
1 2
1 3
2 4
2 5
3 6
3 7
4 8
NS5XX
NS7XX
NS3XX
NS7XX
NS5XX
NS3XX
R401
IC151
R402
R403
R404
R403
R404
R211
R405
R212
R406
R213
R407
R214
R408
R215
R409
TP_CLKOUT1
R216
R217
R217
R218
R219
R601
R602
R603
R410
R604
R411
R605
CN201
R412
R606
CN202
R413
R220
R414
R221
R415
R609
R416
R417
R224
R418
R225
R226
R227
R228
R610
R229
R611
R612
CN402
R613
R614
R420
R615
TP_+1.5V_DDR
R230
R618
R231
R619
R232
R233
R234
R235
R236
R238
R622
R624
R818
C201
R625
R819
C202
TP_+15V
TP_+1.8V_VRTC
C203
R433
R240
R241
C205
R242
C206
C208
R820
C209
R821
R246
R247
R248
R824
R249
R825
C402
C403
C403
C210
TP_+1.8V_VAUX1
C211
PWRON
C212
R250
C214
R251
CL101
R252
CL102
TP_+3.3V_VMMC
R253
CL103
R254
CL104
R255
C601
CL105
R256
C602
CL106
TP_+1.8V_LAN
R257
C603
CL107
R258
C604
CL108
R259
C605
CL109
C411
C606
C607
C608
C609
CL301
CL302
TP_+1.8V_VDAC
R260
TP_+5VD
CL110
R261
CL111
R262
CL112
R263
CL113
C803
TP_+1.2VD
R264
C610
CL114
R265
C611
CL115
C805
R266
C612
CL116
R267
C807
R651
C809
R652
C617
R653
C618
R654
C619
R655
R656
R657
RTC_nINT1
C620
C621
C622
C623
C624
C625
C626
C627
C628
C629
R475
R286
R287
C634
nCST
R670
C637
C638
R484
R290
R291
C644
D201
D202
D203
R499
TP_CLK_16.384MHz
C656
C660
D601
C661
D602
C662
D603
C663
D604
C664
C665
IC202
IC203
IC206
IC207
IC208
TP_DDR_VREF
IC601
IC602
IC603
IC605
IC606
IC608
L524
L525
L526
TP_+1.8V_VDIG2
R102
L539
R304
R307
R309
IC251
R310
TP_DDR_VTT
R1000
R1001
R313
R507
R1003
R314
R508
R1004
R315
TP_BAT_ALM
R509
R1005
R316
R1006
R1007
R318
R1008
R1009
R510
R511
CN301
R512
R513
R1010
R321
R1011
R322
R516
R323
R1013
R1014
R326
R1016
R327
R1017
R1019
R521
R522
R1021
TP_+3.3V_VAUX2
R527
R528
R912
C107
R913 R914
TP_+3.3VD_B
R530
TP_+2.5VD
C305
R536
C306
C307
C308
C309
C501
C502
C503
C310
TP_3.3V_BAT
C311
X301
C312
R542
C313
X303
R543
C314
X304
C315
C316
R546
C317
R547
C123
R548
C124
C319
R549
R356
TP_+3.3VD
C129
TP_+1.2V_LAN
R550
R551
R552
C322
R553
C130
C324
R361
C131
R555
R556
R363
R557
C328
R364
C329
R365
R366
R367
C332
C333
R563
C334
C335
R565
C338
R568
R569
R571
R573
C343
R574
C344
TP_+1.1V_CORE
C345
C346
C347
C349
R386
R387
C350
DL601
C352
C353
TP_+1.1V_MPU
R391
R392
R393
R394
R398
D304
D305
D306
D306
D307
C751
C752
C753
C756
C757
C758
CL_RXD
Q601
C759
TP_+3.3V_VAUX33
TP_+1.8V_VPLL
IC101
IC104
C760
C761
C762
CL_TXD
IC303
L601
T301
IC305
L602
L603
L604
L605
TP_CLK_50MHz
IC501
IC502
IC503
RXD
TP_DG1
TP_DG2
TP_DG3
nRTS
TP_DG4
TXD
TP_DG5
TP_DG6
R201
R202
R203 R204
R205
R206
B
B
C
E
D
D
E
F
C
F
R1027
R1028
R1029
R1030
R1033
R1037
R1039
R1040
R1046
R1047
A1
T1
A9
T9
2 1
4 0
2 0
1
1
8
2
7
1
4 1
8 0
4 0
11
5
16
30
2 5
1
2 4
4 8
2 2
2 3
4 4
1
8
14
7
1
8
1 4
7
1
1
2
8
7
9
5 6
1 2
1
A1
V1
V18
A18
4
1
8
5
1
4 8
3 3
3 2
1 7
1 6
4 9
6 4
REF2
3
5
7
PNLB2261X -GW
A
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