Read Panasonic KX-FL423RU (serv.man2) Service Manual Supplement online
11
KX-FL423RU-B / KX-FL423RU-W
2.2.2.
DIGITAL BOARD: BOTTOM VIEW
[Changed from original section “17.1.2. DIGITAL BOARD: BOTTOM VIEW”]
+5VD
1
7
8
8
8
A
DG
7
6
1
24
E
E
E
E
18
19
Q223
R221
R223
R227
C231
1
R275
R280
R288
8
9
R283
C341
C177
R139
R138
R137
R140
R114
R138
R137
R140
R114
+1.8V
C252
+3.3V
C251
L204
L205
R200
A8
C155
R225
R222
C213
R248 A
C239
1
6
3
4
E
C344
R251
R230
IC201
R229
C240
R219
C230
R250
Q219
C234
C233
D9
D11
D11
D8
D10
C227
C226
C156
C157
C158
A13
A18
A17 A19 A15
A16 A14 A12 A10
A11 A9 A20 A22
A21
C201
C245 R237
C244
RESET
RA101
TP_RD
A1
C152
Q306
CL122
Q305
R324
R324
E
C151
A6 A5
A3
A4
A7
RA103RA102
RA106
TP_FCS
R343
C150
TP_A14
C141
TP_A13
C136
C125
C128
R342
Q304
C143
C119
L101
TP_GIOP52
C145
R103
R102
R102
R361
C176
R157
R362
R281
C258
C112
C109
IC301
R241
R242
C362
C362
C363
C264
E
D100
1
C372
R256
R254
R246
C250
R276
R278
Q230
R287
1
1
1
7
10
Q203
C207
R358
14
8
7
1
R315
16
Q301
Q302
C312
C313
C317
C316
C316
R360
C324
R328
R328
R212
R211
C203
C200
R211
C203
C200
Q215
Q214
C249
C256 R258
C330
Q206
L208
E
E
8
1
5
R321
1
1
1
1
1
5
4
3
4
7
R156
C170 R202
16
IC104
TP_NMI
C149
C139
C142
C137
C146
C236
R228
R234
R231
12
13
R218
IC200
1
R233
R240
R131
C369
C164
C174
C163
C268
R282
R286
C175
R262
C366
R259
R245
R313
R317
C113
C111
R304
R357
R308 R124
E
E
R330
C323
C129
C130
C127
C122
C108
R101
L102
C126
R144
C121
C147
TP_CHKCS
TP_ACS
R121
C320
R331
R329
R320
IC107
L304
D203
1
L305
R314
R309
R311
R312
C309
C124
R146
R145
C131
E
R325
E
C307
C304
C305
C310
4
1
5
C329
R279
RA109
RA110
Q229
E
C328
R337
RA107
C349
PbF
C348
Q222
RA108
D12
D14
D14
D6
D7 D5 D3 D1
RA111
RA112
RA113
RA114
D4 D2 D0
D13
D15
D15
8
C311
R334
C327
R333
C325
R356 R355
C133
C132
L100
C120
E
C321
R247
C306
TP
_A
_A
MO
N
N
C144
L207
C370
C135
C138
C140
TP_A15
TP_CSG
TP_CHK
TP_CHK
TP_EXTINT
C148
A2
R135
R136
RA104
RA105
R236
R352
R353
Q200
Q201
24
R216
31
4
Q224
13
12
+24V
2
TXD RTS
1
1
RXD CTS
PNLB1667Y -LV
A
KX-FL423RU-B / KX-FL423RU-W DIGITAL BOARD BOTTOM VIEW
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