DOWNLOAD Panasonic KX-TS208 / KX-TS208LX / KX-TS2368RU / KX-T2378MX Service Manual ↓ Size: 1.97 MB | Pages: 10 in PDF or view online for FREE

Model
KX-TS208 KX-TS208LX KX-TS2368RU KX-T2378MX
Pages
10
Size
1.97 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
Telephone / INTEGRATED TELEPHONE SYSTEM
File
kx-ts208-kx-ts208lx-kx-ts2368ru-kx-t2378mx.pdf
Date

Panasonic KX-TS208 / KX-TS208LX / KX-TS2368RU / KX-T2378MX Service Manual / Supplement ▷ View online

5
3.1.2.
KX-TS208LXW (Suffix Code: M or later)
[Changed from original section “22 SCHEMATIC DIAGRAM (BASE UNIT)”]
SP Phone
Circuit
6.2V
Ringer Circuit
Hold
Circuit
Speaker Phone Outgoing Signal
Speaker Phone Incoming Signal
Handset & Headset Incoming Signal
Handset & Headset Outgoing Signal
In Use Detector Circuit
6.2V
4.5V
3.9V
4.5V
3.9V
Tone
Detect
KX-TS208LXW SCHEMATIC DIAGRAM (Main)
NC: No Components
(   )
(    )
(   )
(   )
(   )
(   )
(   )
(   )
+-
-+
(   )
(   )
(   )
(   )
R103
100K
R104
47K
C609
K0.1
R445
10K
C602
K0.047
R482
1.5M
C618
6.3V33
R613
100K
R411
680
J401
NC
R422
15K
C605
K6800P
D102
C613
K0.068
J101
0
C424
K0.018
C116
NC
R129
330K
R125
10K
DCM
C601
6.3V1000
R424
NC
C106
16V10
R127
3.9K
D601
R426
2.7K
C435
K0.1
C415
K0.01
R102
100K
R611
18K
R619
22K
R618
2.2K
C114
10V47
R425
2.2M
R128
47
Q103
R434
1.5M
C103
K0.01
R607
68K
R442
100K
J102
0
C615
6.3V22
R407
2.2K
C108
K0.1
Q102
R432
22K
C105
16V10
C617
6.3V100
R118
1.5K
C624
K0.01
Q104
NC
R404
18K
R440
47K
R408
560
C107
10V330
C608
K0.015
R602
3.3K
R608
6.8K
Q423
C440
K3300p
SP
C438
K0.1
R665
2.2M
C600
0
R606
30K
R423
0
D422
R121
10K
R605
2.2M
Q109
R610
100K
C408
K0.022
R105
1.5M
Q406
R405
33K
R439
15K
R443
100K
C614
6.3V47
R124
15
CN402
HANDSET
1M
IC
(+
)
2
M
IC(-)
3S
P
(+
)
4S
P
(-
)
C109
K0.01
R609
3.3M
R428
5.6K
C603
K0.033
C423
K6800
C607 K0.027
R603
3.3K
R101
56K
R131
NC
C625
16V10
R615
10K
R403
47K
C115
NC
C481
K0.01
R666
4.7M
CN401
Headset Jack
1
5
4
3
2
R614
47K
R126
3.3M
R108
4.7K
C407
NC
C620
K0.012
R427
120
R130
820
Q426
R120
1.5K
C404
K0.1
R604
4.7K
D421
C422
K0.022
C426
K0.1
R612
4.7K
VR401
NC
C425
K0.1
Q405
R437
15K
R401
33K
C606
K0.047
C421
K0.033
DCP
R483
2.7M
R430
47K
C611
50V1
VR402
NC
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
Q101
C622
K0.033
R617
4.7K
Q108
D308
R429
0
J405
NC
IC201
1
2
3
4
GND
5
6
7
8V
C
C
R123
33
Q602
C410
NC
D103
R421
1.8K
C306
K0.1
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
6.3V330
R412
6.8K
C112
K0.1
TP101
SW110
11
12
10
SW120
2
1
3
C124
500V680P
POS102
SW120
5
4
6
SW510
11
12
10
D113
C121
500V680P
SW120
11
12
10
D111
2
13
4
D110
2
13
4
SW130
11
12
10
TP102
C123
500V680P
TP103
D114
SW110
5
4
6
CN101
(L1/L2)
4T
ip
(L
in
e
2
)
3T
ip
(L
in
e
1
)
2
R
ing(Line1)
1R
in
g
(L
in
e
1
)
SW130
8
9
7
SW130
2
1
3
POS101
SW110
11
12
10
TP104
R140
0
R522
3.3M
Q505
Q560
R555
15K
Q501
D502
SW110
8
9
7
C359
6.3V47
R351
220K
R557
15K
C556
K0.01
R575
3.3M
R568
4.7M
R511
4.7K
R508
47K
R559
10K
R562
33
R513
33K
R506
15K
R565
2.7K
Q551
Q558
C354
K470P
C358
K0.01
R509
10K
R520
8.2M
Q504
C505
16V10
R523
330K
R563
33K
Q553
R504
4.7K
D560
3.6V
SW510
5
4
6
Q555
Q559
D352
R551
100K
D507
Q557
Q506
C503
50V2.2
R574
10M
Q352
R517
27K
C356
K0.001
D558
D554
3.6V
R354
470
Q556
C353
K560P
R571
3.3M
D354
D509
R554
4.7K
C551
K0.01
D505
D553
R564
2.2K
R501
100K
D555
D351
R560
470K
D506
18V
R519
100
R569
100
C357
50V1 
D559
R507
15K
C557
50V0.33 
C351
16V10
R514
2.2K
R577
100K
R567
27K
R518
4.7M
C352
16V10
C555
16V10
R566
10K
R510
470K
R352
4.7K
R576
3.3M
Q554
R570
10M
C552
6.3V47
R556
15K
Q351
SW510
2
1
3
C502
6.3V47
R552
2.7K
C507
50V0.33 
Q502
D504
3.6V
R573
330K
C553
50V2.2
D556
18V
R561
4.7K
R515
2.7K
R512
33
D353
Q507
C504
16V100
R521
3.3M
D552
D561
D355
Q503
R505
15K
D508
R553
100K
C355
K2200
R558
47K
D503
Q508
Q552
R503
100K
R353220K
D557
C506
K0.01
R502
2.7K
C554
16V100
SW120
8
9
7
T351
1
2
3
4
5
6
7
8
9
R516
10K
R3
330K
R21
6.8K
Q1
R31
47K
NC
R9
C4
K6800p
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
2
14
3
R6
100K
C21
250v1
C1
250v1
C24
K6800p
C22
50V4.7
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
14
3
R1
6.8K
C5
50V4.7
R5
0
T1
1
2
5
4
3
D21
2
14
3
PC22
2
14
3
R2
12K
R11
47K
C2
50V4.7
SA101
SA102
D602
D401
C401
NC
Q401
TP601
TP602
TP611
TP612
TP603
SW101
HOOK
C427
NC
TP401
TP403
TP402
CN102
L2/DATA
1
T
ip(Line2)
2
R
ing(Line2)
D104
NC
Q493
Q491
Q492
R664
470K
R481
470K
D23
D3
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)
L401
0
R410
470K
C117
NC
C430
NC
C429
NC
J1
0
J2
0
J3
0
J5
0
J9
0
J10
0
J11
0
J12
0
J13
0
J14
0
J15
0
J16
0
J21
0
J23
0
J24
0
J28
0
J26
0
J27
0
J31
0
J32
0
J33
0
J34
0
J35
0
J36
0
J37
0
J38
0
J41
0
J43
0
J44
0
J45
0
J46
0
J47
0
J48
0
J51
0
J52
0
J53
0
J54
0
J55
0
J61
0
J62
0
J64
0
J71
0
J72
0
J73
0
J81
0
J82
0
J83
0
PCB
J84
0
Q303
R320
10K
R109
2.2K
NC
R616
C501
K0.01
BATTP
0
BATTN
0
R667
12
C626
K0.01
R668
220K
R12
NC
R32
NC
J17
0
J29
0
J39
0
J49
0
J74
0
D106
6.2V
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
J18
0
SW510
8
9
7
Q603
D309
C437
SW510
11
12
13
C630
Z1.0
C406
180P
Q421
Q424
R201
10K
C204
K0.047
R205
5.6K
R204
390K
R208
4.7K
R203
10K
R202
120K
R207
10K
C202
6.3V,47uF
C201
0.47 uF,16V
D203
D202
Q201
R206
18K
C203
K0.022
C205
K0.22
C441
J19
0
J85
0
Q604
R441
100K
D402
D204
C120
500V680P
Q204
R106
91K
D105
25V
R10
0
C619
4.7u
C612
4.7u
C610
1u
C414
10u
 
 
LINE2
L
INE1
LINE1
CONF
CONF
LINE2
CONF
LINE1
HOLD
LINE2
HOLD
6
3.1.3.
KX-TS2368RUW (Suffix Code: N or later)
[Changed from original section “22 SCHEMATIC DIAGRAM”]
SP Phone
Circuit
6.2V
Ringer Circuit
Hold
Circuit
Speaker Phone Outgoing Signal
Speaker Phone Incoming Signal
Handset & Headset Incoming Signal
Handset & Headset Outgoing Signal
In Use Detector Circuit
6.2V
4.5V
3.9V
4.5V
3.9V
Tone
Detect
KX-TS2368RUW SCHEMATIC DIAGRAM (Main)
NC: No Components
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
)
 
 
 
(
(   )
(   )
(   )
(   )
(   )
+-
-+
(   )
(   )
R103
680K
R104
47K
C609
K0.1
R445
10K
C602
K0.056
R482
1.5M
C618
6.3V33
R613
100K
R411
680
J401
NC
C605
K6800P
D102
C613
K0.068
J101
NC
C424
K0.01
C116
NC
R129
330K
R125
10K
DCM
C601
6.3V1000
R424
NC
C106
16V10
R127
3.9K
D601
R426
2.7K
C435
K0.1
C415
K0.01
R102
100K
R611
18K
R619
22K
R618
2.2K
C114
10V47
R425
3.3M
R128
68
Q103
R434
2.7M
C103
K0.01
R607
68K
R442
100K
J102
0
C615
6.3V22
R407
1.8K
C108
K0.1
R432
22K
C105
16V10
C617
6.3V100
R118
2.2K
C624
K0.01
Q104
NC
R404
27K
R440
47K
R408
680
C107
6.3V330
C608
K0.015
R602
3.3K
R608
6.8K
Q423
C440
K3300p
SP
C438
NC
R665
2.2M
C600
0
R606
30K
R423
0
D422
R121
10K
R605
2.2M
Q109
R610
100K
C408
K0.022
R105
1.5M
Q406
R405
33K
R439
NC
R443
100K
C614
6.3V47
R124
15
CN402
HANDSET
1M
IC
(+
)
2
M
IC(-)
3S
P
(+
)
4S
P
(-
)
C109
K0.01
R609
3
.3M
R428
5.6K
C603
K0.033
C423
K6800
C607 K0.027
R603
3.3K
R101
390K
R131
NC
C625
16V10
R615
10K
R403
68K
C115
NC
C481
K0.01
R666
4.7M
CN401
Headset Jack
1
5
4
3
2
R614
47K
R126
4.7M
R108
4.7K
C407
NC
C620
K0.012
R427
120
R130
1K
Q426
R120
3.3K
C404
K0.1
R604
4.7K
D421
C422
K0.022
C426
K0.1
R612
4.7K
C425
K0.01
Q405
R437
15K
R401
33K
C606
K0.047
C421
K0.033
DCP
R483
2.7M
R430
47K
C611
50V1
R409
22K
R444
0
R600
4.7K
C616
K0.1
C111
K0.01
R436
680
C113
0.039u
R601
8.2K
R406
3.3M
C405
K0.1
C439
K1500p
Q101
C622
K0.033
R617
4.7K
Q108
D308
J405
NC
R123
33
Q602
C410
NC
D103
R421
1.8K
C306
K0.1
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
6.3V330
R412
15K
C112
K0.1
TP101
SW110
11
12
10
SW120
2
1
3
C124
500V680P
SW120
5
4
6
SW510
11
12
10
D113
C121
500V680P
SW120
11
12
10
D111
2
13
4
D110
2
13
4
SW130
11
12
10
C120
500V680P
TP102
C123
500V680P
TP103
D114
SW110
5
4
6
CN101
(L1/L2)
4T
ip
(L
in
e
2
)
3T
ip
(L
in
e
1
)
2R
in
g
(L
in
e
1
)
1R
in
g
(L
in
e
1
)
SW130
8
9
7
SW130
2
1
3
SW110
11
12
10
TP104
R522
3.3M
Q505
Q560
R555
15K
Q501
D502
SW110
8
9
7
C359
6.3V47
R351
220K
R557
15K
C556
K0.01
R575
3.3M
R568
4.7M
R511
4.7K
R508
47K
R559
10K
R562
33
R513
33K
R506
15K
R565
2.7K
Q551
Q558
C354
K470P
C358
K0.01
R509
10K
R520
8.2M
Q504
C505
16V10
R523
330K
R563
33K
Q553
R504
4.7K
D560
3.6V
SW510
5
4
6
Q555
Q559
D352
R551
100K
D507
Q557
Q506
C503
50V2.2
R574
10M
Q352
R517
27K
C356
K0.001
D558
D554
3.6V
R354
470
Q556
C353
K560P
R571
3.3M
D354
D509
R554
4.7K
C551
K0.01
D505
D553
R564
2.2K
R501
100K
D555
D351
R560
470K
D506
18V
R519
100
R569
100
C357
50V1 
D559
R507
15K
C557
50V0.33 
C351
16V10
R514
2.2K
R577
100K
R567
27K
R518
4.7M
C352
16V10
C555
16V10
R566
10K
R510
470K
R352
4.7K
R576
3.3M
Q554
R570
10M
C552
6.3V47
R556
15K
Q351
SW510
2
1
3
C502
6.3V47
R552
2.7K
C507
50V0.33 
Q502
D504
3.6V
R573
330K
C553
50V2.2
D556
18V
R561
4.7K
R515
2.7K
R512
33
D353
Q507
C504
16V100
R521
3.3M
D552
D561
D355
Q503
R505
15K
D508
R553
100K
C355
K2200
R558
47K
D503
Q508
Q552
R503
100K
R353220K
D557
C506
K0.01
R502
2.7K
C554
16V100
SW120
8
9
7
T351
1
2
3
4
5
6
7
8
9
R516
10K
R3
330K
R21
1.8K
Q1
R31
47K
NC
R9
C4
K6800p
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
18K
Q21
PC1
1
2
3
4
D1
2
14
3
R6
100K
C21
250v1
C1
250v1
C24
K6800p
C22
50V10
T21
1
2
5
4
3
R8
47K
R13
10K
R23
330K
SW21
4
1
2
3
SW1
4
1
2
3
R33
10K
R7
33K
R28
47K
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
14
3
R1
1.8K
C5
50V4.7
R5
0
T1
1
2
5
4
3
D21
2
14
3
PC22
2
14
3
R2
18K
R11
47K
C2
50V10
SA101
SA102
D602
D401
C401
NC
Q401
TP601
TP602
TP611
TP612
TP603
SW101
HOOK
C427
NC
TP401
TP403
TP402
CN102
L2/DATA
1
T
ip(Line2)
2
R
ing(Line2)
D104
NC
Q493
Q491
Q492
R664
470K
R481
470K
D23
D3
CN403
@pinN
NC
@pinN
NC
1
AGND
2
MIC
3
PULSE_MUTE
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)
L401
0
R410
470K
C117
NC
C430
NC
C429
NC
J1
0
J2
0
J3
0
J5
0
J9
0
J10
0
J11
0
J12
0
J13
0
J14
0
J15
0
J16
0
J21
0
J23
0
J24
0
J28
0
J26
0
J27
0
J31
0
J32
0
J33
0
J34
0
J35
0
J36
0
J37
0
J38
0
J41
0
J43
0
J44
0
J45
0
J46
0
J47
0
J48
0
J51
0
J52
0
J53
0
J54
0
J55
0
J61
0
J62
0
J64
0
J71
0
J72
0
J73
0
J81
0
J82
0
J83
0
PCB
J84
0
Q303
R320
10K
R109
2.2K
NC
R616
C501
K0.01
BATTP
0
BATTN
0
R667
12
C626
K0.01
R668
220K
J17
0
J29
0
J39
0
J49
0
J74
0
D106
5.1V
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
J18
0
SW510
8
9
7
Q603
D309
SW510
11
12
13
C630
Z1.0
C406
180P
Q421
Q424
C202
6.3V47
C203
K2200
C205
K0.22
C204
K0.047
C201
K0.047
IC201
1
2
3
4
GND
5
6
7
8V
C
C
D202
D203
R201
10K
R203
1
0K
Q201
R202
120K
R208
4.7K
R204
390K
R205
5.6K
R207
10K
R206
18K
J19
0
J85
0
Q604
C441
K0.1
D402
R441
100K
C437
1.5M
Q102
VR401
200K
R422
NC
VR402
500
R429
NC
POS101
R140
0
POS102
R435
1.8K
D204
Q204
R106
91K
D105
25V
R10
0
C610
1u
C612
4.7u
C619
4.7u
C414
10u
 
 
LINE2
LINE1
LINE1
CONF
CONF
LINE2
CONF
LINE1
HOLD
LINE2
HOLD
7
3.1.4.
KX-T2378MXW (Suffix Code: L or later)
[Changed from original section “18 SCHEMATIC DIAGRAM (BASE UNIT)”]
S
P Phone
Circuit
6.2V
Ringer Circuit
Hold
Circuit
Speaker Phone Outgoing Signal
Speaker Phone Incoming Signal
Handset & Headset Incoming Signal
Handset & Headset Outgoing Signal
In Use Detector Circuit
6.2V
4.5V
3.9V
4.5V
3.9V
Tone
Detect
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(   )
(     )
(   )
(   )
(   )
(   )
)
 
 
 
(
(   )
(   )
(    )
(   )
(   )
(   )
(   )
(   )
+-
-+
1
VR401
NC
R558
47K
C426
K0.1
Q551
C358
K0.01
R444
10K
R425
3.3M
TP402
Q506
J19
0
R574
10M
C410
NC
VR402
NC
C436
K2200p
J3
0
Q405
R567
27K
J47
0
C120
500V680P
Q109
C5
50V4.7
R601
8.2K
D601
J29
0
PIN8
R555
15K
R33
10K
CN101
(L1/L2)
4T
ip
(L
in
e
2
)
3T
ip
(L
in
e
1
)
2R
in
g
(L
in
e
1
)
1R
in
g
(L
in
e
2
)
SA101
R11
47K
J39
0
R576
3.3M
R518
4.7M
R121
10K
R434
2.2M
SW510
2
1
3
J14
0
C624
K0.01
J17
0
R554
4.7K
J11
0
C609
K0.1
D2
36V
Q1
R109
2.2K
C115
NC
D556
18V
R612
4.7K
R483
2.7M
C354
K470P
R412
6.8K
J12
0
PIN26
R427
120
C35
50V4.7
D353
R105
1.5M
R608
6
.8K
R124
15
R103
100K
C356
K0.001
C114
10V47
SW1
4
1
2
3
PIN27
R13
10K
PC1
1
2
3
4
D509
C21
250v1
C556
K0.01
Q424
R436
680
Q423
PIN20
D555
PIN12
C4
K6800p
R664
470K
Q426
Q508
R551
100K
J49
0
R125
10K
PIN18
R354
470
D21
2
14
3
C608
K0.015
SW510
11
12
13
SW510
11
12
10
PIN7
C103
K0.01
J41
0
R443
100K
R506
15K
C425
K0.1
SW130
2
1
3
R615
10K
Q603
D22
36V
BATTN
0
C616
K0.1
R3
330K
J61
0
J85
0
R613
100K
R553
100K
R25
0
R503
100K
Q507
C601
6.3V1000
R618
2.2K
R604
4.7K
SP
R442
100K
R519
100
R564
4.7K
R521
3.3M
D113
VR601NC
Q303
TP401
C503
50V2.2
D401
R406
3.3M
R22
12K
C24
K6800p
Q103
C421
K0.033
TP603
C620
K0.012
R560
470K
R404
18K
Q558
SW510
8
9
7
L401
0
C613
K0.068
R565
2.7K
C600
0
C630
Z1.0
R123
33
R424
NC
J72
0
R131
NC
R667
12
R605
2.2M
R352
4.7K
R429
0
R600
4.7K
C109
K0.01
C621
330u6.3V
R507
15K
Q554
R501
100K
R126
3.9M
C618
6.3V33
R561
4.7K
J5
0
R409
22K
D103
SW130
8
9
7
SW120
2
1
3
D102
SW21
4
1
2
3
R514
4.7K
J71
0
R408
560
R557
15K
SW110
11
12
10
R6
100K
Q503
C617
6.3V100
R509
10K
C435
K0.1
C557
50V0.33 
TP601
C355
K2200
PIN2
R666
4.7M
PIN24
C554
16V100
D354
D502
C111
K0.01
C553
50V2.2
R120
1.5K
T351
1
2
3
4
5
6
7
8
9
TP102
C552
6.3V47
C430
NC/1608C
D505
Q556
C404
K0.1
R140
0
R482
1.5M
D561
J55
0
PIN15
Q101
R423
0
R563
33K
R665
2.2M
C439
K1500p
J23
0
R568
4.7M
SW120
8
9
7
R27
33K
J405
NC
J10
0
J82
0
J45
0
Q604
J53
0
R407
2.2K
R108
4.7K
SW110
8
9
7
PIN16
J101
0
C352
16V10
R614
47K
C555
16V10
C116
NC
R410
470K
Q351
C353
K560P
C607 K0.027
TP103
R12
NC
J52
0
J83
0
R428
5.6K
PIN22
CN102
L2/DATA
1
T
ip(Line2)
2
R
ing(Line2)
D352
TP403
R353220K
R512
33
C357
50V1 
R511
4.7K
TP602
C405
K0.1
C121
500V680P
R504
4.7K
C504
16V100
J1
0
SW120
11
12
10
D506
18V
R411
680
R130
820
D3
PIN14
D557
R619
22K
IC1
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hfre
7
Hfre
8
OUT
R508
47K
R401
33K
D504
3.6V
C23
50V0.22 
Q504
R104
47K
PIN19
R426
2.7K
R606
30K
D351
Q21
R437
15K
C22
50V4.7
J18
0
PIN1
J46
0
J74
0
R570
10M
Q406
D308
IC22
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hf
re
7
Hfre
8
OUT
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(R)
25
LINE1(G)
26
LINE2
27
LINE2(R)
28
LINE2(G)
C106
16V10
R516
10K
R435
1.8K
D560
3.6V
J84
0
R127
3.9K
CN402
HANDSET
1M
IC
(+
)
2M
IC
(-
)
3S
P
(+
)
4S
P
(-
)
J64
0
J9
0
J401
NC
J36
0
R552
2.7K
J21
0
C351
16V10
C481
K0.01
NC/1608R
R9
PIN25
R101
56K
R439
15K
D23
PCB
R559
10K
C112
K0.1
Q552
C501
K0.01
R31
47K
T21
1
2
5
4
3
D309
J54
0
C408
K0.022
C415
K0.01
D1
2
14
3
C505
16V10
J35
0
PIN11
R556
15K
SW120
5
4
6
R26
82K
R430
47K
PIN13
R28
10K
C614
6.3V47
Q555
R403
47K
R668
220K
C611
50V1
R577
100K
C2
50V4.7
D554
3.6V
C124
500V680P
C424
K0.018
J62
0
TP104
SW510
5
4
6
R603
3.3K
C401
NC
J48
0
R571
3.3M
R128
47
Q559
TP611
C407
NC
C3
50V0.22 
R510
470K
J33
0
TP612
J32
0
TP101
D114
J15
0
J2
0
C117
NC/1608C
SW130
11
12
10
R481
470K
R118
1.5K
J44
0
C602
K0.047
Q108
J13
0
C625
16V10
Q102
J73
0
BATTP
0
C113
K0.033
Q492
R562
33
J38
0
Q501
C626
K0.01
R421
1.8K
J51
0
C440
K3300p
R8
10K
PIN21
R445
10K
PIN4
R23
330K
T1
1
2
5
4
3
Q553
R440
47K
PIN5
C622
K0.033
R611
18K
J16
0
R129
330K
C438
K0.1
C107
10V330
PIN28
R520
8.2M
R515
2.7K
R575
3.3M
R610
100K
C123
500V680P
J102
0
DCM
R351
220K
C606
K0.068
R7
33K
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
NC/1608R
R616
D104
NC
C422
K0.022
J26
0
Q104
NC
Q493
R422
15K
R505
15K
D503
C506
K0.01
R573
330K
J28
0
D508
C406
180P
R517
27K
R102
100K
R617
4.7K
C615
6.3V22
D558
Q502
R523
330K
R522
3.3M
DCP
R513
33K
Q505
R21
6.8K
SW110
11
12
10
PIN17
Q352
R607
68K
R502
2.7K
C423
K6800
Q602
R32
NC
C603
K0.033
PIN9
PC22
2
14
3
SW110
5
4
6
PIN10
C429
NC/1608C
J24
0
D559
J81
0
PC21
1
2
3
4
C105
16V10
R566
10K
PIN23
R405
33K
J37
0
C306
K0.1
C359
6.3V47
SA102
C502
6.3V47
SW101
HOOK
R441
100K
CN401
Headset Jack
1
5
4
3
2
NC/1608R
R29
J27
0
R432
22K
D552
C1
250v1
C605
K6800P
R602
2.7K
R609
3.3M
R5
0
Q401
R1
6.8K
C551
K0.01
J31
0
Q491
Q557
Q421
C507
50V0.33 
D111
2
13
4
D507
D553
PIN6
C108
K0.1
Q560
R2
12K
R569
100
PC2
2
14
3
D106
6.2V
D110
2
13
4
J34
0
J43
0
D355
D602
R320
10K
D202
R206
18K
R207
10K
IC201
1
2
3
4
GND
5
6
7
8V
C
C
R205
5.6K
C201
K0.047
R204
390K
C204
K0.047
C205
K0.22
C203
K2200
R208
4.7K
C202
6.3V47
R202
120K
R203
1
0K
R201
10K
Q201
POS101
POS102
D402
D203
D204
C437
1.5M
C441
0.1uF
Q204
R106
91K
D105
25V
R10
0
C610
1
u
C619
4.7u
C612
4.7u
C414
10u
LINE2
HOLD
LINE1
CONF
CONF
LINE1
LINE2
HOLD
CONF
LINE2
LINE1
 
 
KX-T2378MXW SCHEMATIC DIAGRAM (Main)
NC: No Components
8
Memo
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