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Model
KX-TS2368RUW KX-T2378MXW KX-TS208W KX-TS2368CAW KX-TS208LXW
Pages
14
Size
1.14 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
Telephone / INTEGRATED TELEPHONE SYSTEM
File
kx-ts2368ruw-kx-t2378mxw-kx-ts208w-kx-ts2368caw-kx.pdf
Date

Panasonic KX-TS2368RUW / KX-T2378MXW / KX-TS208W / KX-TS2368CAW / KX-TS208LXW Service Manual / Supplement ▷ View online

7
KX-T2378 SCHEMATIC DIAGRAM (Main)
NC: No Components
(         )
(         )
(        )
(        )
(        )
(        )
(        )
(         )
(        )
(           )
(        )
(      )
(          )
(         )
1
1
1
VR401 NC
R558
47K
Q551
C358
K0.01
R425
3.3M
TP402
Q506
R574
10M
VR402
NC
R567
27K
C120
500V680P
C5
50V4.7
R555 15K
R33
10K
CN101
(L1/L2)
Tip(Line2)
Tip(Line1)
Ring(Line1)
1
2
1
2
3
4
Ring(Line2)
SA101
R11
47K
R576
3.3M
R518
4.7M
SW510
2
1
3
R554
4.7K
D2
36V
Q1
D556
18V
C354
K470P
R427
120
C35
50V4.7
D353
R105
1.5M
R103
100K
C356
K0.001
SW1
4
1
2
3
R13
10K
PC1
1
2
3
4
D509
C21
C556
K0.01
D555
C4
K6800p
Q426
Q508
R551
100K
R354
470
D21
2
1
4
3
SW510
11
12
10
C103
K0.01
R506
15K
C425
K0.1
SW130
2
1
3
D22
36V
R3
330K
R553
100K
R25
0
R503
1
00K
Q507
R442
100K
R519
100
R564
4.7K
R521
3.3M
D113
TP401
C503
50V2.2
R22
12K
C24
K6800p
Q103
C421
K0.033
R560
470K
Q558
L401
0
R565
2.7K
R424
NC
4.7K
R352
R429
0
R507
15K
Q554
R501
100K
R561
4.7K
R141
0
D103
SW130
8
9
7
SW120
2
1
3
D102
SW21
4
1
2
3
R514
4.7K
15K
R557
SW110
11
12
10
R6
100K
Q503
R509
10K
C557
50V0.33 
C355
K2200
C554
16V100
D354
D502
C553
50V2.2
T351
1
2
3
4
5
6
7
8
9
TP102
C552
6.3V47
D505
Q556
R140
0
D561
Q101
R423
0
R563
33K
R568
4.7M
SW120
8
9
7
R27
33K
J405
NC
R108
4.7K
SW110
8
9
7
J101
0
C352
16V10
C555
16V10
Q351
C353
K560P
TP103
R12
NC
R428
5.6K
CN102
L2/DATA
Tip(Line2)
Ring(Line2)
D352
TP403
R353
220K
R512
33
C357
50V1 
R511
4.7K
C121
500V680P
R504
4.7K
C504
1
6V100
SW120
11
12
10
D506
18V
C414
16V10
D3
D557
IC1
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hfre
7
Hfre
8
OUT
R508
47K
D504
3.6V
C23
50V0.22 
Q504
R104
47K
R426
2.7K
D351
Q21
C22
50V4.7
R570
10M
IC22
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hfre
7
Hfre
8
OUT
R516
10K
D422
D560
3.6V
CN402
HANDSET
MIC(+)
1
2
3
4
MIC(-)
SP(+)
SP(-)
J401
NC
R552
2.7K
C351
16V10
NC
R9
R101
56K
R439
15K
D23
R559
10K
Q552
C501
K0.01
R31
47K
T21
1
2
5
4
3
C415
K0.01
D1
2
1
4
3
C505
16V10
R556
15K
SW120
5
4
6
R26
82K
R28
10K
Q555
R668
220K
R577
100K
C2
50V4.7
D554
3.6V
C124
500V680P
C424
K0.018
TP104
SW510
5
4
6
R571
3.3M
Q559
C3
50V0.22 
R510
470K
TP101
D114
SW130
11
12
10
R118
1.5K
D421
Q102
R562
33
Q501
R421
1.8K
R8
10K
R23
330K
T1
1
2
5
4
3
Q553
R440
47K
C438
K0.1
R520
8.2M
R515
2.7K
R575
3.3M
C123
500V680P
DCM
R351
220K
R7
33K
C422
K0.022
Q104
NC
R422
15K
R505 15K
D503
C506
K0.01
R573
330K
D508
R517
27K
R102
100K
D558
Q502
R523
330K
R522
3.3M
DCP
R513
33K
Q505
R21
6.8K
SW110
11
12
10
Q352
R502
2.7K
C423
K6800
R32
NC
PC22
2
1
4
3
SW110
5
4
6
C429 NC
D559
PC21
1
2
3
4
16V10
C105
R566
10K
C306
K0.1
C359
6.3V47
SA102
C502
6.3V47
SW101
HOOK
R441
100K
CN401
Headset Jack
1
5
4
3
2
NC
R29
D552
C1
R5
0
R1
6.8K
C551
K0.01
Q557
Q421
C507
50V0.33 
D111
2
1
3
4
D507
D553
Q560
R2
12K
R569
100
PC2
2
1
4
3
D110
2
1
3
4
D355
POS101
POS102
D402
C437
1.5M
C441
0.1uF
Q204
R106
91K
LINE2
HOLD
LINE1
CONF
CONF
LINE1
LINE2
HOLD
CONF
LINE2
LINE1
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(11)
(10)
(12)
(13)
(14)
(15)
(17)
(16)
(18)
(19)
(20)
(22)
(23)
(24)
(25)
(21)
250v1μ
250v1μ
8
3.1.3.
For KX-TS208W
[Changed from original section "5 SCHEMATIC DIAGRAM (BASE UNIT)"]
NC: No Components
(      )
(        )
(        )
(      )
(         )
+-
-+
(        )
(         )
(         )
(       )
(       )
(       )
(          )
(         )
(        )
(        )
(        )
(         )
(         )
(        )
(       )
(       )
(        )
(       )
(       )
(        
)
(             )
(             )
3
R445
10K
C602
K0.047
R482
1.5M
C618
6.3V33
R411
680
C605
K6800P
C613
K0.068
C116
NC
R129
330K
R125
10K
C601
6.3V1000
C106
16V10
R127
3.9K
D601
C435
K0.1
R611
18K
R619
22K
R618
2.2K
C114
10V47
R128
47
R434
2.2M
R607
68K
J102
0
C615
6.3V22
R407
2.2K
C108
K0.1
R432
22K
C617
6.3V100
C624
K0.01
R404
18K
R408
560
C107
10V330
C608
K0.015
R602
3.3K
Q423
C440
K3300p
SP
R665
2.2M
C600
0
R606
30K
R121
10K
R605
2.2M
Q109
R610
100K
C408
K0.022
Q406
R405
33K
R443
100K
C614
6.3V47
R124
15
C109
K0.01
C619
25V4.7
C603
K0.033
C607
K0.027
R603
3.3K
C612
25V4.7
R131
N
C
C625
16V10
R615
10K
R403
47K
C115
NC
C481
K0.01
R666
4.7M
R614
47K
R126
3.3M
C407
NC
C620
K0.012
R130
820
R120
1.5K
C404
K0.1
R604
4.7K
C426
K0.1
R612
4.7K
Q405
R437
15K
R401
33K
C606
K0.047
R483
2.7M
R409
22K
R444
10K
R600
4.7K
VR601
NC
C616
K0.1
C111
K0.01
R436
680
C113
K0.033
R601
8.2K
R406
3.3M
C405
K0.1
R435
1.8K
C439
K1500p
C622
K0.033
R617
4.7K
Q108
D308
C610 50V1
IC201
     NC
1
2
3
4
GND
5
6
7
R123
33
Q602
C410
NC
IC601
1
RR
2
ATX
3
TXI
4
TXO
5
TLI
6
TLO
7
RLI
8
RLO
9
MCI
10
MCO
11
CP1
12
CP2
13
XD1
14
SKG
15
SKO
16
V+
17
AGC
18
CS
19
SKI
20
VCC
21
VB
22
V-
23
XDC
24
VLC
25
ACF
26
RXO
27
RXI
28
RAX
C621
6.3V220
R412
6.8K
C112
D602
D401
C401
NC
Q401
TP601
TP602
TP611
TP612
TP603
C427
NC
D104
NC
Q493
Q491
Q492
R664
470K
R481
470K
CN403
@pinN
NC
@pinN
NC
1
AGND
2
MIC
3
NC
4
SPTX-MUTE
5
HOOK
6
TR
7
SPVOL
8
RX-MUTE
9
VOL1
10
VOL2
11
VOL3
12
NC
13
SP-CS
14
VDD
15
GND
16
BATT+
17
BEEP
18
DTMF
19
TX-MUTE
20
PULSE
21
HEADSET
22
TONE
23
LINE1
24
LINE1(G)
25
LINE1(R)
26
LINE2
27
LINE2(R)
28
LINE2(G)
R410
470K
C117
NC
C430
NC
Q303
R320
10K
NC
R616
R667
12
C626
K0.01
C436
K2200p
PIN1
PIN2
PIN4
PIN5
PIN6
PIN7
PIN8
PIN9
PIN10
PIN11
PIN12
PIN13
PIN14
PIN15
PIN16
PIN17
PIN18
PIN19
PIN20
PIN21
PIN22
PIN23
PIN24
PIN25
PIN26
PIN27
PIN28
SW510
8
9
7
Q603
D309
SW510
11
12
13
C630
Z1.0
C406
180P
C202
NC
R201
NC
R204
NC
R205
NC
R202
NC
NC
R203
R207
NC
R208
NC
C203
NC
C204
NC
C205
NC
C201
NC
D202
D203
Q201
Q424
Q604
D105
25V
 
 
R613 100K
C609 K0.1
C611 50V1
R609
3.3M
R608
6.8K
D106
6
.2V
R109
2.2K
R430
47K
8
VCC
J19
J3
J47
J29
J39
J14
J17
J11
J12
J49
J41
BATTN
J61
J85
J72
J5
J71
J55
J23
J10
J82
J45
J53
J52
J83
J1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
J18
J46
J74
J84
J64
J9
J36
J21
PCB
J54
J35
J62
J48
J33
J32
J15
J2
J44
J13
J73
BATTP
J38
J51
J16
J26
J28
J24
J81
J37
J27
J31
J34
J43
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(11)
(10)
(12)
(13)
(14)
(15)
(17)
(16)
(18)
(19)
(20)
(22)
(23)
(24)
(25)
(21)
9
NC: No Components
KX-TS208W SCHEMATIC DIAGRAM (Main)
(        )
(         )
(           )
(        
)
(        )
(         )
(         )
(        )
(         )
(         )
(      )
(        )
(        )
(        )
(         )
(        )
3
1
1
1
R104
47K
J401
NC
R422
15K
D102
J101
0
C424
K0.018
DCM
R424 NC
R426
2.7K
C415
K0.01
R102
100K
R425
3.3M
Q103
R442
100K
Q102
R118
1.5K
Q104
NC
C438
K0.1
R423
0
D422
R105
1.5M
R439
15K
CN402
HANDSET
R428
5.6K
C423
K6800
R101
56K
CN401
Headset Jack
1
5
4
3
2
R108
4.7K
R427
120
Q426
D421
C422
K0.022
C425
K0.1
C421
K0.033
DCP
Q101
R429
0
J405
NC
D103
R421
1.8K
C306
K0.1
C414
16V10
TP101
SW110
11
12
10
SW120
2
1
3
C124
500V680P
POS102
R141
0
SW120
5
4
6
SW510
11
12
10
D113
C121
500V680P
SW120
11
12
10
D111
2
4
D110
2
4
SW130
11
12
10
C120
500V680P
TP102
C123
500V680P
TP103
D114
SW110
5
4
6
CN101
(L1/L2)
Ring(Line1)
SW130
8
9
7
SW130
2
1
3
POS101
SW110
11
12
10
TP104
R140
0
R522
3.3M
Q505
Q560
Q501
D502
SW110
8
9
7
C359
6.3V47
R351
220K
C556
K0.01
R568
4.7M
R511
4.7K
R508
47K
R559
10K
R562
33
R506
15K
R565
2.7K
Q551
Q558
C354
K470P
C358
K0.01
R509
10K
R520
8.2M
Q504
C505
16V10
Q553
R504
4.7K
SW510
5
4
6
Q555
Q559
D352
D507
Q557
Q506
C503
50V2.2
Q352
R517
27K
C356
K0.001
D558
R354
470
Q556
C353
K560P
R571
3.3M
D354
D509
R554
4.7K
C551
K0.01
D505
D553
R564
2.2K
D555
D351
R560
470K
D506
18V
R519
100
R569
100
C357
50V1 
C351
16V10
R514
2.2K
R577
100K
R567
27K
R518
4.7M
C352
16V10
C555
16V10
R510
470K
Q554
C552
6.3V47
R556
15K
Q351
SW510
2
1
3
C502
6.3V47
Q502
C553
50V2.2
R561
4.7K
R515
2.7K
R512
33
D353
Q507
C504
16V100
D552
D561
D355
Q503
D508
C355
K2200
R558
47K
D503
Q508
Q552
R503
100K
D557
C506
K0.01
R502
2.7K
C554
16V100
SW120
8
9
7
T351
1
2
3
4
5
6
7
8
9
R3
330K
R21
6.8K
Q1
R31
47K
NC
R9
C4
R25
0
C23
50V0.22 
NC
R29
IC22
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hfre
7
Hfre
8
OUT
R22
12K
Q21
PC1
1
2
3
4
D1
R6
100K
C21
C1
C24
K6800p
T21
1
2
5
4
3
R8
10K
R13
10K
R23
330K
SW21
4
1
2
3
SW1
4
1
2
3
R33
10K
R7
33K
R28
10K
PC21
1
2
3
4
C3
50V0.22 
R27
33K
C35
50V4.7
D22
36V
D2
36V
IC1
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hfre
7
Hfre
8
OUT
R26
82K
PC2
2
3
R1
6.8K
C5
50V4.7
R5
0
T1
1
2
5
4
3
D21
PC22
2
3
R2
12K
R11
47K
C2
50V4.7
SA101
SA102
SW101
HOOK
TP401
TP403
TP402
CN102
L2/DATA
D23
D3
L401
0
C501
K0.01
R668
220K
R12
NC
R32
NC
C437
Q421
R440
47K
R441
100K
C441
D402
D204
R103
100K
Q204
R106
91K
LINE2
LINE1
LINE1
CONF
CONF
LINE2
CONF
LINE1
HOLD
LINE2
HOLD
1
4
1
4
K6800p
2
1
4
3
C22
50V4.7
2
1
4
3
16V10
C105
C103
K0.01
1
3
1
2
3
4
Ring(Line1)
Tip(Line2)
Tip(Line1)
1
3
1
2
Tip(Line2)
Ring(Line2)
C507
50V0.33 
R523
3
30K
R521
3.3M
R516
10K
D504
3.6V
R513
33K
R507
15K
R505 15K
R501
1
00K
C557
50V0.33 
R573
330K
R576
3.3M
D560
3.6V
R575
3.3M
R574
10M
D556
18V
R570
10M
R566
10K
D554
3.6V
R563
33K
15K
R557
R555 15K
D559
R553
100K
R551
100K
R552
2.7K
VR402
NC
C429 NC
VR401 NC
MIC(+)
1
2
3
4
MIC(-)
SP(+)
SP(-)
R353
220K
4.7K
R352
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(11)
(10)
(12)
(13)
(14)
(15)
(17)
(16)
(18)
(19)
(20)
(22)
(23)
(24)
(25)
(21)
250v1μ
250v1μ
10
3.1.4.
For KX-TS208LXW
[Changed from original section "22 SCHEMATIC DIAGRAM (BASE UNIT)"]
NC: No Components
(      )
(         )
(        )
+-
-+
(         )
(       )
3
R445
10K
R482
1.5M
C618
6.3V33
R411
680
C605
K6800P
C613
K0.068
C116
NC
R129
330K
R125
10K
C106
16V10
R127
3.9K
D601
C435
K0.1
R611
18K
R619
22K
R618
2.2K
R128
47
R434
1.5M
J102
0
C615
6.3V22
R407
2.2K
C108
K0.1
R432
22K
C617
6.3V100
C624
K0.01
R404
18K
R408
560
C107
10V330
Q423
C440
K3300p
SP
R665
2.2M
C600
0
R121
10K
Q109
R610
C408
K0.022
Q406
R405
33K
R443
100K
6.3V47
R124
15
C109
K0.01
C619
25V4.7
C603
K0.033
25V4.7
R131
NC
C625
16V10
R615
10K
R403
47K
NC
C481
K0.01
R666
4.7M
R614
47K
R126
3.3M
NC
C620
K0.012
R120
C404
K0.1
R604
4.7K
C426
K0.1
R612
4.7K
Q405
R437
15K
R401
33K
R483
2.7M
R409
22K
R444
10K
R600
4.7K
C616
K0.1
C111
K0.01
R436
680
R406
3.3M
C405
K0.1
R435
1.8K
C439
K1500p
C622
K0.033
R617
4.7K
Q108
D308
IC201
1
2
3
4
GND
5
6
7
R123
33
Q602
C410
NC
IC601
1
RR
2
ATX
3
TXI
4
TXO
5
TLI
6
TLO
7
RLI
8
RLO
9
MCI
10
MCO
11
CP1
12
CP2
13
XD1
14
SKG
15
SKO
16
V+
17
AGC
18
CS
19
SKI
20
VCC
21
VB
22
V-
23
XDC
24
VLC
25
ACF
26
RXO
27
RXI
28
RAX
C621
6.3V220
R412
6.8K
C112
K0.1
D602
D401
C401
NC
Q401
TP601
TP602
TP611
TP612
TP603
C427
NC
D104
NC
Q493
Q491
Q492
R664
470K
R481
470K
CN403
@pinN
NC
@pinN
NC
1
AGND
2
MIC
3
NC
4
SPTX-MUTE
5
HOOK
6
TR
7
SPVOL
8
RX-MUTE
9
VOL1
10
VOL2
11
VOL3
12
NC
13
SP-CS
14
VDD
15
GND
16
BATT+
17
BEEP
18
DTMF
19
TX-MUTE
20
PULSE
21
HEADSET
22
TONE
23
LINE1
24
LINE1(G)
25
LINE1(R)
26
LINE2
27
LINE2(R)
28
LINE2(G)
R410
470K
C117
NC
C430
NC
Q303
R320
10K
NC
R616
R667
12
C626
K0.01
C436
K2200p
PIN1
PIN2
PIN4
PIN5
PIN6
PIN7
PIN8
PIN9
PIN10
PIN11
PIN12
PIN13
PIN14
PIN15
PIN16
PIN17
PIN18
PIN19
PIN20
PIN21
PIN22
PIN23
PIN24
PIN25
PIN26
PIN27
PIN28
SW510
8
9
7
Q603
D309
SW510
11
12
13
C630
Z1.0
C406
180P
Q424
R201
10K
C204
K0.047
R204 390K
R208
4.7K
R202
120K
R207
10K
C202
6.3V,47uF
C201
0.47 uF,16V
D203
D202
Q201
C203
K0.022
C205
K0.22
Q604
D105
25V
J19
J3
J47
J29
J39
J14
J17
J11
J12
J49
J41
BATTN
J61
J85
J72
J5
J71
J55
J23
J10
J82
J45
J53
J52
J83
J1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
J18
J46
J74
J84
J64
J9
J36
J21
PCB
J54
J35
J62
J48
J33
J32
J15
J2
J44
J13
J73
BATTP
J38
J51
J16
J26
J28
J24
J81
J37
J27
J31
J34
J43
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(11)
(10)
(12)
(13)
(14)
(15)
(17)
(16)
(18)
(19)
(20)
(22)
(23)
(24)
(25)
(21)
R613 100K
C601
6.3V1000
(        )
C609
K0.1
R605
2.2M
R606
30K
R607
68K
(          )
R601
8.2K
R608 6.8K
C608
K0.015
NC
C607
K0.027
C610 50V1
C611 50V1
R603
3.3K
C602
K0.047
C606
K0.068
R602
2.7K
R609 3.3M
C612
C614
100K
(       )
(        )
(         )
(        )
C407
C114
10V47
R130
820
C113
K0.033
C115
1.5K
D106
6.2V
R109
2.2K
8
VCC
R206
18K
R205
5.6K
R203 10K
R430
47K
Page of 14
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