Panasonic KX-MB283RU / KX-MB783RU (serv.man3) Service Manual / Supplement ▷ View online
37
KX-MB283RU/KX-MB783RU
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(4)
(4)
(5)
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KX-MB783RU SCHEMATIC DIAGRAM (MAIN BOARD No.4) (2/2)
4
-2
2/2
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX
:
HS
-TX,RX
:
C
E
B
A
D
F
6
7
8
SPMUTE
1:2I
51k
R230
K0.015u
C226
EXTRLY
1:5G
L217
10k
R238
120k
R242
RLY100
1
2
3
4
5
R229
NC
( )
10k
R235
DG
K1u
C232
+5VA
L219
0
R251
DG
+5VA
2.49k(1/2W)
R116
L218
+3.3V
DG
HOOK
1:5G
J100p
C101
10(3216)
R225
DG
L225
0(3216)
R126
1.8k
R234
100k
R118
+5VD
L220
DG
51k
R231
K0.015u
C227
DG
IC204
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
4.7k
R239
150k
R241
1k
R236
10(3216)
R240
68
R228
K0.022u
C231
150k
R226
K1u
C233
C242
NC
(
)
120k
R227
0
R250
DG
DG
6.3V/100u
C224
100k
R117
DG
680
R232
DG
+5VA
6.3V/100u
C236
CIDRLY
1:2I
C103
(
)
NC
DG
16V/47u
C229
12k
R237
(
)
R128
NC
+5VD
L226
D103
4
1
3
2
1.8k
R233
K1u
C230
K1000p
C243
5.6k
R252
DG
L100
31AJ601
L101
31AJ601
L106
L102
RLY101
NC
1
2
3
4
5
L103
L105
D200
NC
( )
1
2
2
3
DG
18RK102SN
L232
L233
NC
( )
1mH
L111
1mH
L110
DG2
D102
250V 0.01u
C113
L.F
L238
1
4
3
2
16V/22u
C246
L107
2
3
1
4
R125
( )
NC
R122( )
NC
( )
R131
NC
( )
R133
NC
L223
L221
L224
L222
SA101
1000V
L239
NC
( )
L240
NC
( )
R123
NC
( )
NC
( )
C119
Q103
B
C
E
12(1W)
R129
12(1W)
R134
R135
J
ZNR100
NC
()
R120
( )
NC
( )
R132
NC
R255
NC
(
)
R256
NC
(
)
C248
NC
(
)
C249
NC
(
)
CN200
1
SP+
2
SP-
3
GND
4
HOOK
5
MIC-
6
MIC+
7
HSSP-
8
HSSP+
470p/250V
C115
470p/250V
C114
SA100
21
Q106
B
E
C
( )
Q101
NC
B
C
E
Q105
B
C
E
Q100
B
C
E
Q104
B
C
E
(
)
D101
NC
AK
D100
AK
( )
NC
D105
A
K
( )
NC
D104
A
K
L108
L109
L216
0
L237
0
R124
J
CN101
1
2
3
4
5
6
7
8
CN100
1
2
3
4
5
6
7
8
F100
C126
(
) NC
K0.01u
C112
K0.01u
C125
K0.01u
C228
K3900p
C234
POS100
J
MONITOR-RX
38
KX-MB283RU/KX-MB783RU
MEMO
39
KX-MB283RU/KX-MB783RU
3.5.
Printed Circuit Board
3.5.1.
MAIN BOARD: COMPONENT VIEW
[Changed from original section “17.1.1. MAIN BOARD: COMPONENT VIEW”]
R451
C672
CN507
CN500
CN504
BLUE
C503
C505
C501
CN501
CN505
CN508
CN506
C518
C514
R802
C802
D801
C801
4
5
1
8
R803
C807
C808
C806
Q523
R573
CN514
1
2
R534
R539
C524
CN509
CN701
CN510
1
4
12
1
1
4
BLUE
CN700
C688
C552
C550
1
4
R538
C697
R512 R515
C510
C509
CN502
Q522
C525
R533
Q521
1
8
F800 3.0A
C805
C804
C811
C810
IC800
D800
L800
D503
R574
L502
C671
C673
R452
C491
PbF
PFUP1657YA
A
Q524
E
E
C812
C560
C667
3
1
C515
C800
IC402
29
28
56
25
C470
48
1
24
1
L503
1
C662
Q507
R517
C508
R510
R506
C507
R509
R503
C659
1
C660
R449
R448
C511
R520
R519
Q505
R516
Q506
Q504
Q503
E
E
5
7
1
10
R526
S
E
Q509
Q511
L224
L222
L223
L223
L221
L239
L238
R228 L240
L229
R528
L230
8
1
CN200
R502
R501
C229
L200
C200
D501
1
2
1
7
7
1
C504
R200
C490
C209
5
8
1
R254
Q104
E
R117
C125
R111
C123
R114
C208
C210
E
Q200
C106
C111
R103
1
8
9
C108
IC101
C104
C105
C121
R130
8
9
1
16
IC100
C120
16
R214
L202
L203
4
1
8
9
R245
C244
L227
C655
C100
C668
C670
R126
E
C101
D100
Q100
L359
C315
A25
RA319
RA320
RA318
RA314
R309 R307
R308
C663
RA316
RA315
R447
RA317
IC300
A2
AF2
32.768
X303
BOND
RA403
C318
R376
C312
B1
AE1
B26
R375
C316
R305
R355 L358
R352 L353
R352 L353
R353 L354
R354 L355
R351 L351
R350 L349
R349 L348
16
IC200
C212
R235
R218
C215
C238 R246 L205
C231 L220
R203
C246
IC202
C762
C752
RA753
C224
R225
C242
R251
R255
R250
R256
C236
C815
C816
X301
C313
C314
R374
AE26
L357
IC801
C817
+1.2V
C699
C818
R201
C201
+7V
C653
R217
C213
C213
C214
L210
L208
C219
R222 C220 L211
L215
L209
R221
C666
Q102
R115
R105
E
Q106
D103
ZNR100
L100
L111
L110
R134
C112
C113
R118
C107
C102
R136
R101
R137
R102
C676
E
Q103
E
L101
R132
R120
C119
D101
C103
E
R122
L102
R129
L107
C114
C115
F100 1A
SA101
POS100
CN100
1
2
5
6
7
8
SA100
R133
RLY100
R135
R131
R123
R124
R125
RL
Y101
CN101
1
2
5
6
PCB-CH
L399
CN300
5
6
7
1
2
4
3
8
7
8
LED750
R755
D105
D104
L103
D308
C310 R384
C311
AF25
R346
R764
R343
R335
R765
D307
D306
16
17
24
25
32
R750
C767
C754
L753
8
9
10
CN750
7
2
1
R751
L752
8
9
1
R303
R128
Q101
C677
C654
C680
C669
R339
X750
1
6
3
4
C690
L300
R387
C675
R752
C768
C750
C681
R753
C321
X300
X302
AUTO-CH
C317
RA750
C770
C753
RA751
RA752
C692
C405
R754
C756
C757
C755
IC750
C696
C404
1
54
IC400
27
C413
Q517
Q516
Q514
CN511
R706 R703
8
C555
R542
R541
R546 R544
R554
R550
1
C704
R705
C420
R704 C701
C412
28
BAT300
R410
+3.3V/BATT
C406
C693
C674
C758
C751
L750
C684
R760
C695
R450
J300
C488
RA402
RA401
RA400
RA324
RA322
C687
R561
R560
C557
R559
R563
C548
R562
R564
C556
C543
C537
C534
Q518
R555 R552
C649
C544
C545
C542
11
IC503
10
20
1
C536
C549
C546
L505
R556
R549
R543
R709
R549
R543
R709
E
C540
R547
L501
R558
L364
L363 L361 L347
R368
R367
R369
L345
R409
C403 C402 C414 C400 R401
RA323
L365
L366
L368
RA321
C401
C419
+3.3V
+24V
DG
RESET
+5VD
E
E
E
C471
E
S
Q502
Q526
Q525
E
E
E E
C691
C679
R548
C533
C538
C689
C657
E
E
KX-MB283RU / KX-MB783RU MAIN BOARD COMPONENT VIEW
40
KX-MB283RU/KX-MB783RU
3.5.2.
MAIN BOARD: BOTTOM VIEW
[Changed from original section “17.1.2. MAIN BOARD: BOTTOM VIEW”]
C522
C526
C527
C528
C529
C706
17
C703
C702
16
C705
32
R571
C547
C698
C645
1
IC700
IC502
C709
R708
C710
C711
C712
DA500
C531
FLT501
C530
C554
C551
L504
R553
FL
T500
C553
R536
17
C567
C803
R805
R808
R809
C809
R801
R800
Q801
R529
E
R812
R806
R807
D802
C814
Q800
R530
3
1
R804
C813
E
C566
C520
1
2
16
32
1
R537
41
R707
41
1
1
4
12
1
8
18
E
R566
Q520
Q510
E
R525
R532
C665
R565
Q512
+3.3V
Q519
C678
C649
R523
R527
C516
R578
R580
C563
R569
R570
C559
R521
R531
C517
R582
R583
C565
R587
R585
C569
E
10
1
7
1
5
1
Q501
R504
E
Q527
R518
E
D504
5
1
4
3
IC501
R524
C661
+7V
+5VD
+24V
R522 R810
C512
C513
7
71
2
1
1
E
Q500
R511
C230
L237
R229
L232
R231
C227
1
5
3
2
IC201
R209
R207
R205
R239
C204
C203
C205
R243
C658
R215
C202
R206
C245
C247
D102
R253 R210
R212
L206
C211
R227 R226
C249 R242 R241
L217 R224
R237 C234
R223 C221
R211
C656
L214
L213
R230
C226
L204
L216
L212
C218
R220
C222
C248
IC203
C216 C217
R208
5
8
1
C232
C233
4
R240
R236
R238
L226
IC204
1
L225
4
8
5
L219
8
1
R234
L233
C228 R233 R232
L218
C207
D200
L500
C506
E
C650
C664
C647
C685
C652
DG
R244
R104
C122
R116
C126
Q105
R107
R113
E
R108
R110
C109
L109
R106
L108
R109
R112
R112
C110
L106
1
8
7
2
5
6
L105
1
8
7
1
4
7
8
5
6
3
2
2
1
1
8
C769
R758
C761
R348
1
R341
R340
R390 C325
C425
C324
R759
RESET
C326
R392
C759
R344
C760
7
9
10
2
5
6
R394
C765
C764 C766
R342
IC303
C323
C322
R388
C319
R400
R407
R405
R403
R403
R404
R406
R402
R408
RA405
R382
C336
R345
C339
C682
C364
C328
L367
L369
L346
L344
R219
L370
L371
C331
C362
C306
R347
RA406
DA300
+3.3V/BATT
+1.2V/BATT
C327
R393
C355
C354
R302
C360
C352
C357
C330
R389
C763
C424
C426
C429
C428
C427
RA404
C423
C422
C421
C358
C332
C359
C301
C300
C334
C363
C333
C361
R399
R380
M-TCK
M-TDI M-TMS M-TDO
M-TRSTN
EYEDAT EYECLK
UARTRX UARTTX
C353
C304
R306
R591
C558
RA414
C329
R304
R462
R464
R460
R463
R315
R316
C398
C335
R381
C338
R385
C308
C337
R378
TCK TMS
TDO TDI
TRSTN
R372
R373
C305
L352
R119
L350
L356
C648
R338
R391
+1.2V
D803
TP-CHKSEL
IC301
3
1
4
5
R465
R461
C243
R252
C351
PbF
PFUP1657YA
A
RA413
C651
KX-MB283RU / KX-MB783RU MAIN BOARD BOTTOM VIEW
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