KX-TVM50BX, KX-TVM502X, KX-TVM524X, KX-TVM594X, KX-TVM296X - Panasonic PBX Service Manual (repair manual). Page 121

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17.2. MAIN BOARD (BOTTOM VIEW)
R621B
C349B
R611B
R580B
C465
C291B
R471
R464
L186
R455
X16M2
R454
C281
FIL74A
IC149B
DG2
nCPD5
nRESETB
nCPD6
HOOK6
SAB-B
U/A-B
CPC5
CPC6
HBILB
LD6
LD2B
LA5B
LA1B
MIFS3B
CDFS5B
nDCS3B
nECOREB
nECS34B
HCNTL0B
LD4B
LD0B
LA3B
M1DRB
LHWSELB
M0FS3B
MBDX0B
HOOK5
TI-A
PO-B
C374B
R623B
VAG2
R619B
C371B
C378B
R613B
R617B
C602B
VAG1
PO-A
C467
R580A
L188 R457
R456
R458
C284
C320
C459
nRESETA
nCPD4
HOOK4
nDRDY56A
nDINT3A
nDRDY34A
nECOREA
HBILA
LA1A
LD4A
LD0A
LA3A
M1DRA
LHWSELA
M0FS2A
MBDX0A
LD6A
LD2A
LA5A
nDRST2A
nDINT2A
nDCS2A
nEWAIT34A
DSPRWA
LD7A
LD3A
LA6A
LA2A
M1FS3A
M1FS2A
M1DXA
ALM
BAT
+1.9VB
+1.8V
+3.3VC
M18MA
M0FS3A
MBDR0A
CDFS4A
CDFS3A
nECS34A
HCNTL0A
MBCLK0/CD2MA
CPC4
BELL4
nDRST3A
nDCS3A
nECOWEA
HCNTL1A
LD5A
LD1A
LA4A
FIL124
RA822
RA834
RA826
RA217
C453
RA218 
R392
R394
R393
R428
R431
R397
R396
R395
R405
R404
R403 
R430
R429
R391
C268
C277
C439
R769
R770
R771
R772
R773
u/A-A
CPC3
nCPD3
HOOK3
SAB-A
BELL3
R774
L187
L189
R461
R601B
R621A
R623A
R619A
C378A
C349A
R611A
R601A
C346A
R643
C602A
C374A
R613A
R617A
C371A
C346B
D
A101B
TI-B
C601B
R605B
R614A R609A
C362A
R568A
C601A
R605A
C332A
C334A
R587A
R581A
C306A C392A
C332B
C334B
BAT+
+3.3V
+5.0V
C594
+9V
OVCK
DG1
U102
R668
R541
R547
RA151
RA152
nPDIAG
nCS1
C200
C208
C205
C202
C207
C203
C199
C204
C210
RA153
SHWDHW1
SHWCLK
SHWFH
CN3
SHWUHW1
RA210
RA211
DD8
DD9
nRESETH
nIO16
nIOR
nDIO
W
nD
ASP
HDRD
Y
INTRQ
nCS0
DD10
DD12
DD11
DD13
DD15
C417
DD14
DD7
TXD
DSR
CTS
PXD
DTR
RT
S
RI
nMDMRST
DD5
DD3
DD1
DD6
DD4
DD2
DD0
DA
0
DA
1
DA
2
R687
R546
C559
R542
ALM
R741
R740
R670
R543
R739
R614B
R568B
R587B
R581B
C306B
C294A
C442
C392B
R569B
IC149A
C285
R785
C291A
R460
C286
C292
C307
R434
D
A101A
R570B
R571B
R609B
C362B
C294B R571A
R570A
R569A
C335
L210
L220
L215
L216
R759
RA142
R270
R246
R269
R272
R745
R744
R640
R631
R638
R646
R647
R642
R575
C397
C399
Q202A
L212
C181
C365
C180
R766
R767
R795
R205
R204 R206
R207
R695
R696
R738
C176
C177
C178
C437
C438
C271
C273
C267
C384
RA219
R408
C337
RA823
RA825
R427
RA827
R409
R410
C597
R379
C248
C468
C458
C388
J109
L207
D-
D+
GND
D202
C237
X12M
J105
C236
C211
C228
Vbus
C593
C114
C368
R103
R108
L101
RA241
C227 
C395
R789
R786
R705
R704
R703 R702
R701
L118
L108
L109
L110
R191
R694
RA119
FIL109
C155
L119
L117 L116
+1.9V
L150
R700
R699
R697
R114
R706
R707
R708
R698
R110 R111
R113
R146
R147
C369
C144
C151
C149
C148
C162
C168
R177
R176
R189
R178
R136
R135
R190
R796
R794
R183
R180
R142
R138
R179
C355
R181
R182
R184
R185
R175
R139
R121
R793
C164
L147
L148
RSW
R693
C158
C157
C156
FIL130
C173
FIL131
L107
C345
R145
R144
R161
R160
R159
R158
R157
R162
R713
R711
R712
R112
C132
C137
C134
C133
L105
RA169
RA170
C212
C214
J104
C213
C412
C564
R551
R407
R735
C347
C375
C117
C389
R415
C455
C464
C276
C270
R737
C182
R231
C179
RA135
FIL108
C153
C175
C167
C154
R203
L106
C352
C746
C745
LEDR
TB
TA
LA
HA
RA
RB
LEDA
R172
R133
R678
R677
R299
R305
R300
R307
R308
R301
R302
R304
R306
R309
R123
R140
R137
R126
C142
C143
C170
C146
C145
R134
X16M
nAUDCK
nRESET    AH
TD0
nTRST
TCK
nAUDD3
nAUDD1
SDSW
ASEBRAKAK
TDI
TMS
nAUDSYNC
nAUDD2
nAUDD0
C152
RA134
RA133
RA132
RA108
C333
RA107
RA106
RA105 
R118
R109
R107
R104
R790
C372
RA115
RA243
RA240
RA113
RA114
R566
R572
FIL101
C598
IC179
C113
C103
C109
C106
RA242
R743
R716
C405
R726
R143
R791
R792
R715
R714
R710
R709
R125
L103
FIL112
FIL105
R232
X32K
FIL114 
FIL111
C183
RA141
RA140
RA147
RA131
RA130
RA249
RA248
RA247
RA246
X8M
RA146
RA145
RA144
RA143
RA139
R778
C317
R779
R780
R758
R760 R777
L211 L214
L208
nDRDY56B
nDINT3B
nEWAIT34B
DSPRWB
LD5B
LD1B
LA4B
M1DXB
CDFS6B
MBDR0B
BELL6
BELL5
nDRST3B
nECOWEB
HCNTL1B
LD7B
LD3B
LA6B
LA2B
M18MB
MBCLK0/CD2MB
CN2
CN1
R731
R717
R718
R719
R720
R721
R722
R723
R724
KX-TVM50BX: MAIN BOARD (BOTTOM VIEW)
121
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