Panasonic KX-TS2368RUW Service Manual ▷ View online
18 FOR SCHEMATIC DIAGRAM (SCHEMATIC DIAGRAM
(BASE UNIT))
1. DC voltage measurements are taken with electronic voltmeter from negative terminal.
(Add 40 mA to telephone line from the loop simulator.)
2. This schematic diagram may be modified at any time with the development of new technology.
Important Safety Notice:
Components identified by
mark have special characteristics important for safety. When replacing
any of these components, use only the manufacturer´s specified parts.
41
KX-TS2368RUW
42
KX-TS2368RUW
19 SCHEMATIC DIAGRAM (BASE UNIT)
19.1. Main
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
10K
R618
2.2K
C114
10V47
R425
2.2M
R128
68
Q103
R434
1.5M
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
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
1
MIC(+)
2
MIC(-)
3
SP(+)
4
SP(-)
C109
K0.01
C619
25V4.7
R609 2.7M
R428
5.6K
C603
K0.056
C423
K6800
C607
K0.027
R603
3.3K
R101
390K
C612
25V4.7
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
3.3M
R108
4.7K
C407
NC
C620
K0.012
R427
120
R130
1K
Q426
2SD1819S
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
10K
R600
4.7K
C616
K0.1
C111
K0.01
R436
680
C113
K0.022
R601
8.2K
R406
3.3M
C405
K0.1
C439
K1500p
Q101
2SA1625
C622
K0.1
R617
4.7K
Q108
D308
J405
NC
C610 50V1
R123
33
Q602
C410
NC
D103
R421
1.8K
C306
K0.1
PQVISC77655S
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
15K
C414
16V10
C112
K0.1
TP101
SW110
11
12
10
SW120
2
1
3
500V680P
C124
SW120
5
4
6
SW510
11
12
10
D113
C121
500V680P
SW120
11
12
10
D111
2
1
3
4
D110
2
1
3
4
SW130
11
12
10
C120
500V680P
TP102
500V680P
C123
TP103
D114
SW110
5
4
6
CN101
(L1/L2)
4
Tip(Line2)
3
Tip(Line1)
2
Ring(Line1)
1
Ring(Line1)
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
3.3M
R575
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
4.7K
R504
3.6V
D560
SW510
5
4
6
Q555
Q559
D352
100K
R551
D507
Q557
Q506
C503
50V2.2
10M
R574
Q352
R517
27K
C356
K0.001
D558
D554
3.6V
R354
470
Q556
C353
K560P
R571
3.3M
D354
D509
4.7K
R554
K0.01
C551
D505
D553
R564
2.2K
100K
R501
D555
D351
R560
470K
D506
18V
R519
100
R569
100
C357
50V1
D559
R507
15K
C557
50V0.33
C351
16V10
R514
2.2K
100K
R577
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
2.7K
R552
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
100K
R553
C355
K2200
R558
47K
D503
Q508
Q552
100K
R503
R353
220K
D557
C506
K0.01
2.7K
R502
C554
16V100
SW120
8
9
7
T351
1
2
2
3
4
4
5
6
7
8
9
R516
10K
R3
330K
1.8K
R21
Q1
R31
47K
NC
R9
K6800p
C4
R25
0
C23
50V0.22
NC
R29
IC22
PQVIBA8206FT1
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
1
4
3
R6
100K
250v1m
C21
250v1m
C1
K6800p
C24
C22
50V10
T21
1
2
5
4
3
R8
47K
R13
10K
R23
330K
SW21
4
1
2
3
2
3
SW1
4
1
2
3
2
3
R33
10K
33K
R7
R28
47K
PC21
1
2
3
4
C3
50V0.22
33K
R27
50V4.7
C35
36V
D22
36V
D2
IC1
PQVIBA8206FT1
1
VDD
2
CONT
3
Lfre
4
Lfre
5
VSS
6
Hfre
7
Hfre
8
OUT
R26
82K
PC2
2
1
4
3
1.8K
R1
50V4.7
C5
R5
0
T1
1
2
5
4
3
D21
2
1
4
3
PC22
2
1
4
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
Tip(Line2)
2
Ring(Line2)
D104
18V
Q493
Q491
Q492
R664
470K
R481
470K
D23
D3
CN403
NC
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
NC
C117
NC
C430
NC
C429
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
PQVINJM2904MT3
1
2
3
GND
4
5
6
7
8
VCC
D202
D203
R201
10K
R203 10K
Q201
R202
120K
R208
4.7K
R204
390K
R205
5.6K
R207
10K
R206
18K
J19
0
J85
0
Q604
PQVTDTC144EUT106
C441
K0.1
D402
R441
100K
C437
1.5M
Q102
VR401
200K
R422
NC
VR402
500
R429
NC
POS101
R140
0
POS102
R141
0
R435
1.8K
LINE2
LINE1
LINE1
CONF
CONF
LINE2
CONF
LINE1
HOLD
LINE2
HOLD
KX-TS2368RUW
43
19.2. Operation
TPSTB1
TPKEY2
IC303
2.7V
VCC
VOUT
NC
GND
D821
5
9
D813
D809
C303
6.3V330
TPKEY1
ST1
R313
100K
MUTE
IC801
1
X1
2
X2
3
Vss
4
OSC2
5
OSC1
6
TESTG
7
Vcc
8
RESET
9
ST
OP
10
LCD_CLK
11
LCD_CS
12
LCD_D
A
T
A
13
P24/SCK3
14
RX_V
OL
15
TX_V
OL
16
HOOK_SW
17
LCD_CNT2
18
LCD_CNT1
19 MUTE_LED
20 SP_LED
21 SP_TXMUTE
22 RX_MUTE
23 BEEP
24 H/S_TXMUTE
25 GAIN_CTL
26 NC
27 TEST
28 KEY_IN1
29 KEY_IN2
30 KEY_IN3
31 KEY_IN4
32 KEY5
20 SP_LED
21 SP_TXMUTE
22 RX_MUTE
23 BEEP
24 H/S_TXMUTE
25 GAIN_CTL
26 NC
27 TEST
28 KEY_IN1
29 KEY_IN2
30 KEY_IN3
31 KEY_IN4
32 KEY5
33
KEY6
34
KEY7
35
BA
TT_OUT
36
STB1
37
STB2
38
STB3
39
STB4
40
STB5
41
STB6
42
STB7
43
P67
44
PULSE
45
RL
Y
46
LINE_SEIZER
47
HOLD_ON_MUSIC
48
BA
TT_LO
W
49
HEAD_SET_DET
50
TONE_DET
51
NC
52
SPVOL1
53
SPVOL2
54
SPVOL3
55
HSVOL1
56
HSVOL2
57
HSVOL3
58
NC
59
SP_CS
60
DTMF
61
VTref
62
LOOP
63
EXHOOK
64
CVCC
LOCK
D802
68K
R812
6
100K
R802
39K
R813
LOWER
ST4
1M
R801
ST5/EMG
D808
IC304
3
OUT
1
VSS
2
IN
D807
100K
R814
D801
3
*
ST6
DOWN
1
100K
R311
D816
TPTEST
D818
REDIAL
TPKEY4
D803
SPPHONE
Z0.1
C805
22K
R310
10K
R811
TPSTB5
TPKEY3
ST3
C308
6.3V220
D815
8
FLASH
D804
TPKEY7
ST9
ST7
TPSTB4
TPSTB7
LED801
SP_LED
C802
J12P
2
ST8
SHARP
K0.01
C801
D810
TPKEY6
C804
Z0.1
TPSTB6
TPSTB3
X802
32.76K
ST2
X801
8MHz
1
2
3
R891
1K
TPKEY5
K0.033
C304
68K
R861
D811
15K
R863
PROGRAM
PAUSE
R312
100K
Q802
DTC144TU
TPSTB2
LCD
1
VDD
2
VLCD
3
VSS
4
DATA
5
WR
6
CS
4
NC
C305
D814
R809
100K
33K
R862
C803
J15P
7
UP
Q801
DTC144TU
ST10
Q302
0
C806
K1000p
LED805
LINE2_LED
LED805
LINE2_HOLD
LED803
LINE1_LED
LED803
LINE1_HOLD
R314
470K
CN1
1
LINE2(G)
2
LINE2(R)
3
LINE2
4
LINE1(G)
5
LINE1(R)
6
LINE1
7
TONE
8
HEADSET
9
PULSE
10
TX-MUTE
11
DTMF
12
BEEP
13
BATT+
14
GND
15
VDD
16
SP-CS
17
NC
18
VOL3
19
VOL2
20
VOL1
21
RX-MUTE
22
SPVOL
23
TR
24
HOOK
25 SPTX-MUTE
26 NC
27
MIC
28
AGND
29
30
C824
K1000p
TP601
SPLED
GND
BATTOUT
C301
6.3V1000
R305
220
IC302
C0EBG0000102
1
VOUT
2
VDD
3
VSS
4
NC
5
NC
R304
4.7M
R303
2.2M
R302
6.8M
R301
2.2M
R824
390
R823
680
R822
390
R821
680
D822
D301
D304
D305
D302
J801 0
J802 0
NC
C810
NC
C811
NC
C812
MIC
D817
K0.01
C309
R315
22
Q803
MICP
MICM
D806
D805
D812
D820
D819
PCB
KX-TS2368RUW
44
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