Panasonic KX-TVM50C / KX-TVM502C / KX-TVM503X / KX-TVM524X / KX-TVM594X / KX-TVM296C Service Manual / Supplement ▷ View online
17
KX-TVM50C
D
F
E
C
B
A
H
G
8
11
10
9
(1)
(2)
(3)
(4)
(5)
(5)
(6)
(7)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(18)
(19)
(20)
KX-TVM50C MAIN NO.4 (2/2)
CPC1
HOOK1
HOOK2
R632A
4.7K
T P 5 3 A
CN702B
1
2
3
4
R629A
NC
C402
1.0
R650
22
R631
10K
D102A
NC
T P 1 1 A
+3.3V
CN702A
1
2
3
4
R619A
0
R621A
100K F
T P 8 0 7
T P 1 2 A
R651
0
C390A
50V/10
R654
270
C378A
NC
R647
1.0K
R614A
100K F
R636A
39
T P 1 9 A
C408A
0.47
R649
NC
+3.3V
C418A
220P
T P 8 0 3
VA1A
NC
+3.3V
T P 5 0 A
T P 1 5 A
L194A
1
2
3
4
J106A
NC
T P 4 5 A
C416
50V1.0
J103A
0
R623A
510
R655
0
SFG
R617A
0
C397
J150P
T P 1 3 A
TP30A
R639A
220
T P 8 0 4
PC102A
1
2
3
4
C403
1.0
T P 6 0 A
T P 8 1 1
T P 5 A
SA102A
T P 8 A
R653A
33K
+3.3V
TH101A
T P 7 A
T P 4 6 A
T P 8 0 6
J101A
0
R658A
4.7K 1/10W
RA
D G
ZNR12A
39V
T P 1 4 A
C371A
NC
T P 3 4 A
+3.3V
R613A
510
R625A
8.2K
T P 8 0 8
T P 2 1 A
R634A
15K
C411
1
T P 2 7 A
TA
T P 2 A
D102
R644A
330
PC101A
1
2
3
4
R640
1K
R638
10K
Q701
1
2
3
4
5
R643
4.7K
R648
22
T101A
2
1
3
4
D103A
1
2
3
4
D101A
NC
R660A
4.7 1/8W
R646
2.7K
SA101A
12
3
R656A
22K/1W
C399
0.1
C386A
50V/10
C382A
16V/10
T P 5 8 A
T P 3 5 A
T P 2 8 A
T P 2 6 A
T701
1
2
4
5
6
7
9
10
R627
1.8K
C396
1000PF
R628
1.8K
C394
1000PF
R642
1.8K
VAG1
T P 5 5 A
T P 5 6 A
J105A
NC
C746
100PF
C745
100PF
L728
L727
ZNR103
ZNR104
+3.3V
R575
0
C409
2.2
u
+3.3V
IC1469
10
8
IC14613
12
11
IC146
5
4
4
6
IC146
1
2
2
3
T P 3 3 A
T P 3 2 A
A G
J104A
0
T P 3 6 A
T P 5 6 B
T P 6 0 B
T P 1 9 B
C378B
NC
SA102B
+3.3V
D102B
J103B
0
L194B
1
2
3
4
J105B
NC
T P 1 1 B
R629B
NC
C390B
50V/10
R605B
680
J104B
0
C411B
1
T101B
2
1
3
4
T P 3 3 B
T P 5 5 B
T P 2 1 B
T P 4 5 B
R613B
510
J101B
0
TP30B
RB
R617B
0
R621B
100K F
D103B
1
2
3
4
T P 3 4 B
T P 2 8 B
R644B
330
C371B
NC
T P 5 0 B
C418B
220P
R660B
4.7 1/8W
C386B
50V/10
TH101B
R623B
510
R619B
0
T P 4 6 B
SFG
T P 1 3 B
ZNR12B
39V
T P 2 7 B
PC101B
1
2
3
4
R614B
100K F
C408B
0.47
C382B
16V/10
T P 5 8 B
T P 1 5 B
SA101B
12
3
VAG2
R625B
8.2K
+3.3V
R636B
39
T P 1 4 B
R639B
220
T P 8 B
R653B
33K
R634B
15K
A G
T P 5 3 B
R658B
4.7K 1/10W
PC102B
1
2
3
4
TB
T P 1 2 B
+3.3V
T P 3 5 B
VA1B
T P 3 6 B
J106B
NC
T P 5 B
T P 7 B
D101B
T P 2 6 B B
R632B
4.7K
R656B
22K/1W
T P 3 2 B
T P 2 B
HA
LA
T P 8 1 2
T P 8 6 5
T P 8 1 4
T P 8 1 3
T P 8 1 0
T P 8 0 9
T P 8 0 5
T P 8 0 2
T P 8 0 1
T P 7 9 5
T P 7 9 7
T P 7 9 8
T P 8 0 0
T P 7 9 9
T P 7 9 6
T P 7 9 4
D G
D G
D G
D G
D G
D G
Q202A
E
C
B
Q201A
E
C
B
D291
1
2
3
4
+ 3 . 3 V
C589
0.01u
IC146
1 4
7
D G
Q203A
E
C
B
Q203B
E
C
B
Q204B
NC
E
C
B
Q204A
NC
E
C
B
SA100
L205
T P 9 3 4
L206
T P 9 3 5
SFG
SFG
D G
A G
J107
D G
D G
D G
C465
0.01u
C466
220P
C467
0.01u
A G
+5V
C557
0.01u
C556
0.01u
C561
0.01u
D G
+5V
D105A
D105B
D104A
2V
1
2
3
D104B
2V
1
2
3
L729
1
2
3
4
RL101B
4
3
2
1
RL101A
4
3
2
1
C602A
NC
C346A
NC
R601A
0
C601A
NC
R605A
680
C603A
NC
C601B
NC
C602B
NC
C603B
NC
C346B
NC
R601B
0
D G
T P 9 3 6
R802
3.3k
R803
3.3k
R662
3.3k
R801
3.3k
D - P I T S / A - P I T S / S L T I / F C H A N N E L - A
D - P I T S / A - P I T S / S L T I / F C H A N N E L - B
Hook Control Signal
Hook
Relay SW
Relay SW
CPC Detect Signal
Analog
Transformer
Analog Interface Circuit
Bell Detection Signal
Bell Detection Circuit
DPT Interface Circuit
APT Interface Circuit
Pulse Transformer
!
!
!
!
!
!
!
!
!
!
18
KX-TVM50C
1.3.5.
MAIN No.5 (POWER CIRCUIT BLOCK)
Change from the Original Service Manual Section 16.5.
D
F
E
C
B
A
H
G
4
5
6
3
2
1
(1)
(2)
(3)
KX-TVM50C MAIN NO.5 (1/2)
C450
0.01u
C319
0.01u
C326
0.01u
C439
0.01u
C398
0.01u
C375
0.01u
C352
0.01u
C290
0.01u
C446
0.01u
C391
0.01u
C368
0.01u
C311
0.01u
C335
0.01u
C442
0.01u
C454
0.01u
C419
0.01u
C384
0.01u
C303
0.01u
C342
0.01u
C431
0.01u
C425
0.01u
C360
0.01u
C435
0.01u
C405
0.01u
C413
0.01u
+3.3V
C463
0.01u
C459
0.01u
C320
0.01u
C313
0.01u
C385
0.01u
C421
0.01u
C427
0.01u
C369
0.01u
C400
0.01u
C451
0.01u
C455
0.01u
C432
0.01u
C440
0.01u
C407
0.01u
C460
0.01u
C292
0.01u
+3.3V
C464
0.01u
C443
0.01u
C345
0.01u
C328
0.01u
C436
0.01u
C337
0.01u
C354
0.01u
C304
0.01u
C393
0.01u
C361
0.01u
C468
0.01u
C447
0.01u
C415
0.01u
L191
C317
220P
C417
220P
C325
220P
C412
220P
C453
220P
C429
220P
C347
220P
C423
220P
C437
220P
C441
220P
C355
220P
C395
220P
C449
220P
C433
220P
C404
220P
C331
220P
+3.3V
C309
220P
C300
220P
C364
220P
C388
220P
C339
220P
C445
220P
C379
220P
C457
220P
C372
220P
C462
220P
R544
100K
R548
47K
R667
100K
R668
100K
R664
2.2M
C486
1.0uF(K)/16V
R541
100K
R666
390K
U101
4
3
5
R539
68KF
R663
47KF
R537
3.9KF
R538
3.3KF
R665
15KF
D105
+3.3V
RA167
10K
4
3
2
1
3
2
1
8
7
6
5
+3.3V
C293
0.01u
C307
0.01u
C323
0.01u
C315
0.01u
C350
0.01u
C358
0.01u
C340
0.01u
C333
0.01u
C381
0.01u
C389
0.01u
C365
0.01u
C410
0.01u
C448
0.01u
C444
0.01u
C430
0.01u
C469
0.01u
C458
0.01u
C452
0.01u
C438
0.01u
C461
0.01u
C456
0.01u
C434
0.01u
T P 8 1 6
T P 8 1 8
T P 8 1 9
T P 8 4 1
T P 8 1 7
T P 8 3 4
T P 8 2 2
T P 8 2 1
T P 8 2 3
T P 8 2 0
D122
30V 1A
R542
4.7K
U102
4
3
5
+3.3V
+5V
TP827
T P 8 3 8
T P 8 3 2
T P 8 3 5
T P 8 3 9
T P 8 3 1
T P 8 3 7
D108
5.1V
D112
1
2
3
T P 8 3 3
D109
7.5V
R547
100K
R545
100K
U102
1
6
2
T P 8 2 9
T P 8 3 0
C559
0.1u
C560
0.1u
R672
10K
R671
10K
R670
10K
R669
10K
D110
11V
TP825
D111
T P 8 2 6
D107
7.5V
R546
680K
R543
100K
D113
30V 5A
L198
NC
T P 8 2 4
+ 9 V
T P 8 3 6
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
Q116
E
C
B
TH601
22
U101
1
6
2
U103
4
3
5
U103
1
6
2
D106
30V 5A
MOS102
60V5A or more
S
D
G
MOS101
60V5A or more
S
D
G
D104
30V 5A
T P 8 4 0
CN114
1
1
2
2
+3.3VN
O V C K
L225
T P 1 1 7 0
T P 1 1 6 9
F G 1
D G
L223
1
2
3
4
T P 1 1 7 1
T P 1 1 7 2
L224
T P 1 1 6 8
CN113
1
2
3
3
T P 8 1 5
S w i t c h C o n n e c t o r
9V Inrush Current Protection Circuit
DC In
AC Adaptor
Over Voltage Shutdown Circuit
DC ALARM Circuit
3.3V Starter Circuit
7V
DC 9V
7V
DC ALM : L
Normal : H
19
KX-TVM50C
D
F
E
C
B
A
H
G
7
8
11
10
9
(1)
(2)
(3)
KX-TVM50C MAIN NO.5 (2/2)
L193
R550
100K
R549
100K
U104
50V/100mA/200mW
4
3
5
R551
1K(1/4W)
U104
50V/100mA/200mW
1
6
2
R565
10M
1608
IC155
1
2
3
4
8
+3.3V
D118
D119
D G 1
C573
1.0u
R564
10K
R566
1
+3.3V
+ 3 . 3 V
+ 1 . 9 V B
IC155
5
6
7
R561
10M
1608
C572
1.0u
D120
R563
10K
1608
R562
2.2K
1608
D G 2
R567
4.7K
R556
1K
BAT101
T P 8 6 0
T P 8 5 3
T P 8 6 2
T P 8 5 9
T P 8 5 1
T P 8 4 3
T P 8 6 1
T P 8 5 4
T P 8 6 3
T P 8 6 4
C588
100u/50V
D G
P.G
L190
T P 8 4 2
T P 8 4 5
C569
2.2F/2.5V
C570
2.2F/2.5V
R558
150k
R557
150k
+ 3 . 3 V C
T P 8 5 7
T P 8 5 6
IC157
1
GND
2
VIN
3
VOUT
4
CE
D G
J101
+ 5 . 0 V
R552
1
T P 8 4 8
C563
1.0u
C566
1.0u
L199
+3.3V
+3.3VC
+1.9VB
L203
R675
0
nBAT_ALM
R674
0
nDC_ALM
n D C _ A L M
n B A T _ A L M
D114
VF=3.9V
+1.9V
IC158
1
O U T
2
G N D
3
I N
T P 8 4 4
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
D G
+3.3V
J102
NC
D G
T P 8 4 6
D125
+3.3VN
T P 1 0 1 8
R754
10K
R753
1 W / 3 . 9
D G
U106
1
6
2
R751
18K
R755
39K
T P 1 0 1 9
T P 1 0 2 0
D G
R752
1.8K
U106
4
3
5
J108
IC179
R E 1
1
G N D
2
V D D
3
V O U T
4
E X T
5
C E
R756
10K
D G
R757
680
Q117
E
C
B
T P 1 0 2 1
T P 1 0 2 2
C598
10u
D G
+ 1 . 9 V
C574
470u/10V
R740
1K F
R741
330F
D126
60V 5A
3
2
1
T P 8 5 0
D G
P.G
C594
0.01uF(J)
R739
1.8KF
IC156
1
VIN
2
OUTPUT
3
GND
4
FEEBACK
5
nON/OFF
T P 9 4 1
D G
P.G
D G
P.G
T P 9 4 0
L192
47uH/3.4A
D G
P.G
T P 8 4 7
+5V
+5V
B A T +
B A T
D G
P.G
C564
0.1u/50V
J109
C N 1
NC
D G
D G
C N 2
NC
C N 3
NC
MOS104
1
S 1
2
S 2
3
S 3
4
G
5
D 5
6
D 6
7
D 7
8
D 8
T P 1 1 6 7
F G 1
D G
D G
5V Regurator Circuit
3.3V Regurator Circuit
3.3V Back Up
Inrush Current
Protection Circuit
Inrush Current
Protection Circuit
3.3V Momentary
Powerfailure Buck Up Circuit
Powerfailure Buck Up Circuit
Battery Buck Up Circuit
Battery ALM : L
Litium Battery
2.9
Normal : H
CPU Core Power Circuit
RTC Power Circuit
3.3V for Main PCB
3.3V for Expantion Slot
5V for Analog Circuit
3.3V
3.3V
20
KX-TVM50C
Memo
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