Panasonic KX-TSC14B User manual

ORDERNO. KM40212006C1
J01
Telephone Equipment
KX-TSC14B
Integrated Telephone System
Black Version
(for U.S.A.)
SPECIFICATIONS
1

2003 PanasonicCommunications Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1. LOCATION OF CONTROLS
2

2. REPLACEMENT PARTS LIST
Ref. No. Part No. Part Name & Description Pcs/Set
Remarks
A1 PQJA10075Z CORD, TELEPHONE (2 Wire) 1
A2 PQJA10088Z CORD, TELEPHONE (4 Wire) 1
A3 PQJA10126X CORD, HANDSET 1
A4 PQJXE0401Z HANDSET 1
A5 KX-TCA1-G AC ADAPTOR 1
A6 PQQW12318Z QUICK GUIDE (forEnglish) 1
A7 PQQW12319Z QUICK GUIDE (forSpanish) 1
A8 PQQW12560Z LEAFLET 1
A9 PQQX12879Y INSTRUCTION BOOK 1
3

3. CONNECTION
3.1. Connecting the Handset/AC Adaptor
-USE ONLY WITHPanasonicAC ADAPTORKX-TCA1(Order No. KX-
TCA1-G).
-Use onlyaPanasonicHandset for the KX-TSC14B.
4

-The AC adaptor must remainconnected at all times. (Itisnormal
for the adaptor to feel warm during use.)
-During apower failure the unitwill work as astandard telephone
on the Line 1, but the following features will not work.
-Caller IDservices
-speakerphone
-line indicators
-LCD display
3.2. Connecting the Telephone Line Cord
Connect the telephone line cord(s) tothe unit as follows.
3.2.1. To connect atwo-line telephone jack
3.2.2. To connect twosingle-line telephone jacks
5

3.2.3. If you use the unit onlyas asingle-line telephone
-For thisconnection, you can onlyuse LINE1.
3.3. Connecting aCommunication Device
Afterconnecting the telephone line cordtoa two-line telephone jack, you canconnect a
communication device (computer, modem, fax, answering machine, etc.) through this unit using
the LINE 2/DATA jack (—Data Port).
6

-Ifthe LINE2/DATAindicator lights, the communication device isin
use. Use LINE1to make acall. Otherwise the communication
device maynot operate properly.
4. FOR SCHEMATIC DIAGRAM
1. SW 1: Hook switch.
2. SW 2: Ringer selector.
3. DC voltage measurements are taken with electronicvoltmeter
from negative voltage line.
4. (Add 40 mAto telephone line from the loop simulator.)
5. Off-hook condition
6. NoMack: Handset Mode
7. Thisschematicdiagram maybe modified at anytime with the
development of new technology.
8. The shades area on thisschematicdiagram incorporates special
7

features important for protection from fire and electrical shock
hazards.
9. When servicing, itisessential that onlymanufacture’sspecified
parts be used for the critical components inthe shaded areas of
the schematic.
5. SCHEMATIC DIAGRAM
5.1. MainP.C. Board
5.2. LCD P.C. Board
H.M/ KXTSC14B
8

(1)(2) (3) (5)(4) (8) (9) (10) (11)(12)(13) (14) (15) (16)(17) (18)(19) (20)(21)(22) (23) (24)(25) (26)(27)(28)(7)
(6)
L1 TX
L1 RX
L2 TX
L2 RX
H/S RX
H/S TX
SP phone RX
SP phone TX
-30dBm/600Ω(RX)
-11dBm
RX -24dBm RX -31dBm
TX -11dBm
RX -31dBm
TX -11dBm
RX -3dBm
-30dBm/600Ω
22
POS101
22V
D102
CN201
DC-TEL JACK
6 DC-
5 DC+
25V10
C304
10V100
C305
Q302
C103
500VK680p
C104
500VK680p
C108
K0.01
R112
1K
C109
16V47
R109
33
Q102
C106
J100P
R108
10K
R118
15(1/2W)
C117
16V10
C303 Z0.1
SA101
R110
47K
C306 6.3V330
D101
2
14
3
DCM
TP101
TP102
C107
NC
C302
NC
SA102
300V
TP202
TP201
4.7K(2125)
R205
NC
C207
100K(2125)
R204
PC201
1
23
4
Q202
16V47
C209
18K
R210
15(1/2W)
R211
300V
SA202
16V10
C217
SA201
1.5K
R212
22
POS201
39
R209
K0.01
C208
500VK680p
C203
22V
D202
1K
R207
10K
R208
Q201
4.7K
R206
J100P
C206
D201
2
14
3
500VK680p
C204
D308
5.6K
R115
K2200P
C118
12K
R114
Q103
390K
R113
220
R116
1.5K
R232
K2200P
C234
K0.1
C231
1K
R231
TP203
Q205
390K
R233
390
R234
C205 K820P
CN201
DC-TEL JACK
4
S
3
B
2
A
1
D306
10V220
C307
6.2V(H)
D307
L305
10
L304
10
270
R302
6.3V220
C232
C233
K2200p
C114
NC
D203
6.2V(H)
C216
K5600p
R221
1.5K
R230
1K
C230
K0.01
Q206
R243
270
D205 R241
39K
C212
10V330
C213
Z0.1
R242
5.6K
C211 50V1
J22
C283
820K
R284
820K
R283
15K
R285
33K
R288
+--+
1 2 3 4 GND 5
6 7 8
VCC
10M(2125)
R190
82K
R153
82K
R152
+--+
1 2 3 4 GND 5
6 7 8
VCC
K3300P
C501
220KR160
220K
R501
NC C153
D310
220p
C150
220p
C151
470K
R150
470K
R151
10M(2125)
R191
10M(2125)
R202
10M(2125)R290 10M(2125)
R201
10M(2125)R291
K0.068
C511
K0.1
C281
K0.1
C280
Z0.1C308
8V.REG.
1OUT
3
GND
2
IN
82K
R193
+--+
1 2 3 4 GND 5
6 7 8
VCC
K0.1
C181
J22
C18333K
R188
820K
R184
820K
R183
K8200P
C504
330K
R504
10K
R161
K0.1
C154
1
2
3
4
5
6
INH
9
B10
A
11
12
13
14
15
16VDD
8Vss
7VEE
4.7K
R156
10K
R155
15K
R154
4.7KR157
K2700P
C155
47K
R163
Rb=47k,Rbe=47k
Q151
K0.1
C257
K0.1
C254
2.7K
R262
4.7K
R256
100K
R265
15K
R254
NC
C253
4.7KR257
6.3V47
C256
82p
C255
+--+
1 2 3 4 GND 5
6 7 8VCC
470KR259
50V2.2
C258
220
R264
10K
R266
82K
R253
10K
R261
Rb=47k,Rbe=47k
Q251
390K
R263
18K
R258
82K
R252
Q250
220K
R260
10K
R255
K220p
C250
K220p
C251
470K
R250
470K
R251
250V0.22
C120
47K(2125)
R121
PC104
1
23
4
R124
18K
C220
250V0.22
PC204
1
23
4
R224
47K(2125)
R225
18K
Q253
Rb=10K,Rbe=10K
47K
R267
K2700p
C259
L201 33u
L202
33u
R120
22(1/2W)
R223
22
D150
13
2
D151
13
2
D250
13
2
D251
13
2
R107
1K
C309 6.3V100
D309 R182
10K
D108
4.3V(H)
DCP
C101 Z0.01
C201
Z0.01
C505
Z0.1
C111
6.3V330
D314
C156
6.3V47
C262
0
C263
J100P
C264
K0.1
C265
K0.01
R274
220
R272
390K
R275
10K
R271
2.2K
Q255
D313
NC
R273
CN101
TEL JACK
2
1
R269
1K
R164
1K
Q254
R270
10K
30V
D305
K0.033
C640
R219
0
R220
220
R214
1K
R216
47
R217
12K
R215
2.7K
D204
R213
820K
R218
2.2k
K0.22
C215
Q203
Q204
C214
J150p
C210 50V1
T1
3
4
51
2
C1 1u
R4
22K
C4
K0.1
R7 1K
12
1LINE 2GND 3
SWP_RATE_CTL
4
FREQ_CTL
5
OUT
6
NC
7
Vs
8
LINE
R6
8.2K
R5
100
Q1
C2
50V10
100K(2125)
R104
10M(2125)
R102
R106
4.7K
D107
10M(2125)
R101
Q101
100K(2125)
R123
Q107
4.7K(2125)
R105
SW1
K0.047
C240
VR201 50K
23
1
15K
R240
K0.022
C460
R239 NC
R122
6.8K
D106
270
R126
22K
R127
820K
R128
C122
J150p
2.2K
R125
Q104
C121
K8200p
50V1
C110
L102
33u
L101
33u
Z0.1
C152
K0.1
C180
4.7K
R162
K0.047
C157
K0.1
C158
K0.047
C260
K0.1
C261
4.7K
R268
PC202
1
2
3
45
6
7
8
PC101
1
23
4
PC203
1
2
3
45
6
7
8
10K
R303
6.8K
R304
Q106
27K
R286
390
R192
Q249
Rb=47k,Rbe=47K
68K
R293
390
R292
D249
NC
R187
C184
K0.1
C284
K0.1
Q150
Rb=47K,Rbe=47k
22K
R185
15K
R186
D149
C266
NC
R129
82K
RLY1
0
R119
D103
C112
6.3V47
R222
4.7K
D109
R131
NC
Q108
NC
R130
100K
6.3V47
C252
R1
8.2K
J1
NC
Q2
J2
NC
C5
50V1
PC1
1
23
4
R132
NC
R133
D252
R282
10K
R281
J3 0
L2RLY
INUSE2/EXHOOK2
INUSE2/EXHOOK2
CH_SCEZER
INUSE1/EXHOOK1
L1/L2_CTL
L1RLY
L1BELL
L1BELL
ON/OFF_HOOK_CTL
L2BELL
L2BELL
AC_DOWNAC_DOWN
L2USE_CTL
L1USE_CTL
+8V
CID Pre-AMP
CID Pre-AMP
LINE1
LINE2
IC501
IC102
IC101
IC201
IC202
IC301
IC1
KX-TSC14B SCHEMATIC DIAGRAM (Main P.C. Board)

C906 J22P
C910
0.1
X903
32.76K
C908 J39P
C909
0.1
RESET
C907 J33P
C904
K1000P
C905 J22P
R907
10K
R908 1M
345 141312111087621 9 16 17 1815 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
X902
3.58M
RINGER SP
MIC
R910
680
R911
1.2K
LED901
R909
680
LED903
LED902
1 SEG12
2 SEG13
3 SEG14
4 SEG15
5 SEG16
6 SEG17
7NC
8 SEG18
9 SEG19
10 SEG20
11 SEG21
12 SEG22
13 SEG23
14 NC
15 SEG24
16 SEG25
17 SEG26
18 SEG27
19 SEG28
20 SEG29
21 NC
22 SEG30
23 SEG31
24 SEG32
25 SEG33
26 SEG34
27 SEG35
28 NC
29 SEG36
30 SEG37
39KEY_IN2 40KEY_IN3 41KEY_IN4 42NC 43KEY_IN5 44KEY_IN6 45KEY_IN7 46KEY_IN8 47OPT_STROBE 48NC 49NC 50CAS_TX_MUTE 51SP-PHONE_LED 52LINE2_LED 53LINE1_LED 54SUB_EN 55TEST 56NC 57SUB_STOP 58AC_DOWN
73
SUB_TXD
74
SUB_RXD
75
BEEP
76
EEPROM_CS
77
NC
78
CH_SCEZER
79
BACK_LIGHT_LED
80
NC
81
OPOUT
82
TI/RI
83
BUFOUT
84
NC
85
FILTIN
86
AVDD
87
TIP
88
RING
89
AGND
90
NC
91
NC
92
NC
93
RDET
94
XRT
95
DTMF
96
WDDET
97
GND
98
NC
99
COM0
100
COM1
101
COM2
102
COM3
109
COM9
110
COM10
111
COM11
112
NC
113
COM12
114
COM13
115
COM14
116
COM15
117
SEG0
118
SEG1
119
SEG2
120
SEG3
121
SEG4
122
SEG5
123
SEG6
124
SEG7
125
SEG8
126
SEG9
127
SEG10
128
SEG11
72
SUB_CLK
71
SUB_RST
70
NC
69
XTIN
68
XTOUT
67
TEST
66
XIN
65
XOUT
63
NC
62
TEST2
61
VDD
60
VLC
59
VLR
104
COM5
106
COM6
107
COM7
108
COM8
38
KEY_IN1
37 STR4
36 STR3
35 NC
33 STR1
105
NC
31 SEG38
32 SEG39
34 STR2
64
VDD
103
COM4
C903
J100P
R901
180K
C901
K4700P
R902
390K
C902
0.1
C917
0.1
6
SHARP
9
5
0
7
3
KOME
8
1
2
4
D912
NC
1CS
2SO 3WP 4VSS 5
SI
6
SCK
7
HOLD
8
VCC
R933 NC
C930
NC
CN901
1 SP_GND
2 SPP/RINP
3 RINGERM
4 MICP
5 VDD
6 GND
7 CAS
8 CH_SCEZER
9 SUB_RST
10 SUB_CLK
11 SUB_RXD
12 SUB_TXD
13
CAS_TX_MUTE
14 SUB_EN
15 SUB_STOP
16 AC_DOWN
R932 NC
SPP
SPM
RINGERP
RINGERM
MICP
MICM
Q901
R912
4.7K
R903
0
R904
0
R905
0
R934
NC
R935
NC
R936
NC
R937
NC
D914
D913
D918
D916
D917
HOLD
LINE2
CONF
LINE1
FLASH
VOICE_MAIL
AUTO
CLEAR
FUNC/EXIT
REDIAL
SP_PHONE
D911
TP1 TP2
TP3
TP4
TP5TP6TP7TP8
TP10TP11TP12TP13TP14TP15TP16
TP9
TP17 TP18 TP19 TP20
TP21
TP22
TP23 TP28
TP24 TP25 TP26 TP27
R913
NC
R914
1K
R915
100K
R917
4.7K Q903
LED905
LED908
LED904
LED906
LED907
LED909
R931
NC
R930
NC
R929
NC
R928
NC
Q902
NC
R941 100k R942 100k R943 100k R944 100k R945 100k R946 100k R947 100k
C938
1000p
C936
1000p
C931
1000p
C932
1000p
C933
1000p
C934
1000p
C935
1000p
C937
1000p
R940 100k
C916
K0.1
D915
R920 0R919 0 C918 K0.01
R916
220K
COM5
COM15
COM12
COM3
SEG9
SEG28
SEG20
SEG3
COM8
COM7
SEG34
SEG24
SEG16
SEG7
COM9
SEG32
SEG38
COM4
COM0
SEG8
SEG1
COM14
SEG36
SEG33
SEG10
COM1
SEG25
COM10
SEG21
SEG37
SEG30
SEG15
SEG18
SEG2
SEG23
COM6
COM11
SEG12
SEG17
COM2
SEG14
SEG6
SEG26
SEG31
SEG22
COM13
SEG5
SEG29
SEG35
SEG19
SEG39
SEG4
SEG13
SEG27
SEG0
SEG11
SEG28
SEG35
SEG3
SEG24
SEG0
SEG25
COM13 SEG4
SEG32
SEG10
SEG30
SEG33
SEG37
COM6 COM5 SEG2 SEG7 COM4
SEG26
SEG36
SEG12
SEG5
COM3
SEG21
SEG31
SEG8
COM2
COM8
SEG23
COM12 SEG1
SEG16
SEG14
SEG22
SEG34
SEG38
SEG15
SEG39
COM7
SEG13
SEG18
COM9
SEG17
COM14
SEG20
SEG9
SEG27
COM10
SEG19
COM1
SEG6
COM0
SEG11 COM15
SEG29
COM11
LCD Back Light
IC902
IC903
-30dBm/600Ω
-2dBm
KX-TSC14B SCHEMATIC DIAGRAM (LCD P.C.Board)

(1)(2) (3) (5)(4) (8) (9) (10) (11)(12)(13) (14) (15) (16)(17) (18)(19) (20)(21)(22) (23) (24)(25) (26)(27)(28)(7)
(6)
TX
-40dBm/600Ω
RX
-28dBm (SP Load)
RX -34dBm
-24dBm
-10dBm
+5dBm
-12dBm
-4dBm
-25dBm
-2dBm
* When sp phone
TX, connect TP1
and TP2.
TP401
120
R424
3.3M
R422
6.8K
R423
56K
R420
J47P
C418
K0.1
C406
120K
R452
10K
R456
K6800p
C457
10K
R429
K0.01
C453
1SOUT
2VDD
3VB
4GND
5IN1
6IN2
7IN3
8IN4 9
OUT4
10
OUT3
11
OUT2
12
OUT1
13
DATA
14
CLOCK
15
LATCH
16
PS
10V47
C455
10V47
C454
Q408
K0.1
C416
C447
K0.01
C456
K0.1
R659
3.3K
C656
K1000P
R451
180K
R447
3.3K
K3300P
C513
18KR513
AB
1
2
3
45
6
7
8
K0.1
C515
100K
R519
10K
R515
D501
K0.068
C514
5.6KR514
2.2K
R517
220K
R518
Rb=47k,
Rbe=47k
Q501
4.7K
R520
390K
R516
10K
R512
1MR822
Z0.1
C819
Z0.1C818
3.3K
R658
K6800P
C654
K1000P
C813
Z0.1
C816
6.3V1000
C820
D801
RESET
Q801
100K
R815
100K
R813
D803
K0.01
C812
K0.22
C815
100K
R814
6.3V1000C811
D802
R454 0 R455 0
R453 4.7K
C512
Z0.1
NC
R450
X801
8MHz
123
TESTG
Q403
Rb=3.3K,Rbe=10k
R419
2.7K
Q407
C411
K0.22
R817 18K
R650
120K
Rb=3.3K,Rbe=10k
Q406
R818 4.7K
C403
K0.1
R418
330
R404
68K
K0.015
C401
R403
4.7K
R406
6.8K
C407
16V10
R425
10K
R649
220K
R402
1K
R401 0
R407
150
C409
K0.22
R417
3.3M
R819 1.5K
Q401 R405
4.7K
Q402
10K
R415
C405
NC
C646
K0.1
R414
22K
K0.01
C402
R413
2.2K
C408
NC
150K
R642
4.7KR601
R630
3.9K
R632
33K
K0.1
C602
2.2K
R609
12K
R618
16V22
C613 C627
K0.027
100K
R617
6.3V47
C608
25V4.7
C615
K0.01
C625
1u
C619
C607 K1.0
K0.033
C622
MIC MUTE
Q601
Rb=4.7K,Rbe=47K
Z0.01
C642
4.7K R608
TP1
SP-Phone
1
RR
2
RTX
3
TXI
4
TXO
5
TLI
6
TLO
7
RLI
8
RLO
9
MCI
10
MCO
11
CP1
12
CP2
13
XDI
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 RRX
TP2
SP MUTE
Q602
Rb=4.7K,
Rbe=47K
K0.1
C611
D610
K0.015
C614
Q605
K0.068
C601
6.3V47
C616
2.2MR605
R628
390
100K
R612
2.7M
R606
100K
R607
6.8K
R611
68K
R603
1K
R604
150K
R620
6.8K
R600
K0.033
C603
R631
270K
30KR602
100K
R615
C629
Z0.01
25V4.7
C609
K0.1
C600
6.3V330
C617
K0.068
C610
10V100
C620
R629
330K
K0.1
C618
K0.1
C612
R627
39K
C630
K1800p
4.7KR613
C606 K1.0
18K
R610
C410
NC
R412 220K
R626
33K
560
R625
4.7K
R623
J100PC623
SP Amp.
Q603
220K
R624
10V1000
C621
K0.1
C641
100K
R812
120KR823
56KR824 27KR825 15KR826
560K
R421
K330p
C419
D806
D804
K0.1
C235
VR202
50K
32
1
R237
33K
1K
R236
27K
R461
12K
R432
33K
R430
Q405
Q409
K0.1
C417
K0.1
C415
K0.1
C459
18K
R457
1K
R816
R235
NC
K0.1
C451
C626
K0.01
R633
0
D808
J402
NC
J401
NC
R400
0
CN202
Handset Jack
1SP+
2SP-
3MIC+
4MIC-
CN203
Headset Jack
1
5
4
3
2
5.6K
R820
NC
R821
K0.1
C516
R439
100K
R435
4.7K
Q411
K1000p
C423
R438
47K
R440
10K
R437
22K
Q410
C821
J12P
X804
32.76K
C822
J12P
R643
10K
R644
10K
R645
100K
R646
47K
R647
10K
R648
0
K0.1
C643
K0.1
C644
DIAL_CTL1
Q608
Rb=4.7K,
Rbe=47K
T/POUT
Q607
Rb=4.7K,
Rbe=47K
DIAL_CTL2
Q609
Rb=4.7K,
Rbe=47K
6.3V1000
C810
2.6V
VCC
VOUT
NC
GND
1
X1
2
X2
3
Vss
4
OSC2
5
OSC1
6
TESTG
7
Vcc
8
RESET
9
SUB_RST
10
CLOCK
11
LATCH
12
DATA
13
SUB_CLK
14
SUB_RXD
15
SUB_TXD
16
STOP
17
CAS_TX_MUTE
18 SUB_EN
19 SUB_STOP
20 NC
21 BEEP_CLT1
22 BEEP_CTL2
23 BEEP
24 OPT_12/14
25 TEST1
26 TEST2
27
28
TEST4
HOOK
29 L1USE_CTL
30 L2USE_CTL
31
H/S_SP_MUTE
32
H/S_MIC_MUTE
33
H/S_VOL1
34
H/S_VOL2
35
H/S_VOL3
36
H/S_MIC_GAIN
37
HEADSET_DET
38
SP_SP_MUTE
39
SP_MIC_MUTE
40
SP_VOL1
41
SP_VOL2
42
SP_VOL3
43
SP_VOL4
44
SP_CS
45
NC
46
T/P_OUT
47
DIAL_CTL1
48
DIAL_CTL2
49
AC_DOWN
50 STT_DET
51 CH_SCEZER
52 L1BELL
53 L2BELL
54 ON/OFF_HOOK_CTL
55 L1/L2_CTL
56 NC
57 L1RLY
58 L2RLY
59 PULSE
60 DTMF
61 VTref
62 INUSE2/EXHOOK2
63 INUSE1/EXHOOK1
64 CVCC
R827
22K
CN204
1
SP_GND
2
SP/RINGER-
3
RINGER+
4
MIC
5
VDD
6
GND
7
CAS
8
CH_SCEZER
9
SUB_RST
10
SUB_CLK
11
SUB_RXD
12
SUB_TXD
13
CAS_TX_MUTE
14
SUB_EN
15
SUB_STOP
16
AC_DOWN
R416
NC
C404
NC
R660
NC
L601
NC
Q606
TEST1
TEST4
NC
R811
100K
R829
D805 NC
D401
R426
NC
R428
NC
R427
NC
C414
NC
Q404
C413
0
C412
0
R409
680K
R408
NC
10K
R621
TPSPP
TPSPM
TPMICP
TPGND
TPRINP
TPRINM
TPMIC
C420
K1200p
R828
10K
NC
C624
C628
K820p
C631
NC
10V100
C632
C648
K0.1
J801
NC
K0.1
C645
6.3V47
C823
6.3V47
C824
NC
R830
D811
NC
C814
Q491
Q492
Q493
R831
NC
R832
10K
22K
R431
J403
0
J404
0
K0.033
C817
J405
0
J406
0
Z0.1
C7
C6
K0.01
D820
D807
NC
NC
R460
D810
S_TONE_DET LATCH CLOCK DATA L1RLY L2RLY
SUB_RST
CLOCK
LATCH
DATA
SUB_RXD
SUB_CLK
SUB_TXD
HEADSET_DET
AC_DOWN
S_TONE_DET
CH_SCEZER
L1BELL
L2BELL
ON/OFF_HOOK_CTL
L1/L2_CTL
L1RLY
L2RLY
INUSE2/EXHOOK2
INUSE1/EXHOOK1
STOP
AC_DOWN
SUB_TXD
SUB_RXD
SUB_CLK
SUB_RST
CH_SCEZER
L2USE_CTL L1USE_CTL
+8V
HOOK
H/S_MIC_MUTE
H\S_SP_MUTE
VCC
STT.TONE DETECT
IC601
IC801
IC803
IC502
IC402

(1)(2) (3) (5)(4) (8) (9) (10) (11)(12)(13) (14) (15) (16)(17) (18)(19) (20)(21)(22) (23) (24)(25) (26)(27)(28)(7)
(6)
L1 TX
L1 RX
L2 TX
L2 RX
H/S RX
H/S TX
SP phone RX
SP phone TX
-30dBm/600Ω(RX)
-11dBm
RX -24dBm RX -31dBm
TX -11dBm
RX -31dBm
TX -11dBm
RX -3dBm
-30dBm/600Ω
22
POS101
22V
D102
CN201
DC-TEL JACK
6 DC-
5 DC+
25V10
C304
10V100
C305
Q302
C103
500VK680p
C104
500VK680p
C108
K0.01
R112
1K
C109
16V47
R109
33
Q102
C106
J100P
R108
10K
R118
15(1/2W)
C117
16V10
C303 Z0.1
SA101
R110
47K
C306 6.3V330
D101
2
14
3
DCM
TP101
TP102
C107
NC
C302
NC
SA102
300V
TP202
TP201
4.7K(2125)
R205
NC
C207
100K(2125)
R204
PC201
1
23
4
Q202
16V47
C209
18K
R210
15(1/2W)
R211
300V
SA202
16V10
C217
SA201
1.5K
R212
22
POS201
39
R209
K0.01
C208
500VK680p
C203
22V
D202
1K
R207
10K
R208
Q201
4.7K
R206
J100P
C206
D201
2
14
3
500VK680p
C204
D308
5.6K
R115
K2200P
C118
12K
R114
Q103
390K
R113
220
R116
1.5K
R232
K2200P
C234
K0.1
C231
1K
R231
TP203
Q205
390K
R233
390
R234
C205 K820P
CN201
DC-TEL JACK
4
S
3
B
2
A
1
D306
10V220
C307
6.2V(H)
D307
L305
10
L304
10
270
R302
6.3V220
C232
C233
K2200p
C114
NC
D203
6.2V(H)
C216
K5600p
R221
1.5K
R230
1K
C230
K0.01
Q206
R243
270
D205 R241
39K
C212
10V330
C213
Z0.1
R242
5.6K
C211 50V1
J22
C283
820K
R284
820K
R283
15K
R285
33K
R288
+--+
1 2 3 4 GND 5
6 7 8
VCC
10M(2125)
R190
82K
R153
82K
R152
+--+
1 2 3 4 GND 5
6 7 8
VCC
K3300P
C501
220KR160
220K
R501
NC C153
D310
220p
C150
220p
C151
470K
R150
470K
R151
10M(2125)
R191
10M(2125)
R202
10M(2125)R290 10M(2125)
R201
10M(2125)R291
K0.068
C511
K0.1
C281
K0.1
C280
Z0.1C308
8V.REG.
1OUT
3
GND
2
IN
82K
R193
+--+
1 2 3 4 GND 5
6 7 8
VCC
K0.1
C181
J22
C18333K
R188
820K
R184
820K
R183
K8200P
C504
330K
R504
10K
R161
K0.1
C154
1
2
3
4
5
6
INH
9
B10
A
11
12
13
14
15
16VDD
8Vss
7VEE
4.7K
R156
10K
R155
15K
R154
4.7KR157
K2700P
C155
47K
R163
Rb=47k,Rbe=47k
Q151
K0.1
C257
K0.1
C254
2.7K
R262
4.7K
R256
100K
R265
15K
R254
NC
C253
4.7KR257
6.3V47
C256
82p
C255
+--+
1 2 3 4 GND 5
6 7 8VCC
470KR259
50V2.2
C258
220
R264
10K
R266
82K
R253
10K
R261
Rb=47k,Rbe=47k
Q251
390K
R263
18K
R258
82K
R252
Q250
220K
R260
10K
R255
K220p
C250
K220p
C251
470K
R250
470K
R251
250V0.22
C120
47K(2125)
R121
PC104
1
23
4
R124
18K
C220
250V0.22
PC204
1
23
4
R224
47K(2125)
R225
18K
Q253
Rb=10K,Rbe=10K
47K
R267
K2700p
C259
L201 33u
L202
33u
R120
22(1/2W)
R223
22
D150
13
2
D151
13
2
D250
13
2
D251
13
2
R107
1K
C309 6.3V100
D309 R182
10K
D108
4.3V(H)
DCP
C101 Z0.01
C201
Z0.01
C505
Z0.1
C111
6.3V330
D314
C156
6.3V47
C262
0
C263
J100P
C264
K0.1
C265
K0.01
R274
220
R272
390K
R275
10K
R271
2.2K
Q255
D313
NC
R273
CN101
TEL JACK
2
1
R269
1K
R164
1K
Q254
R270
10K
30V
D305
K0.033
C640
R219
0
R220
220
R214
1K
R216
47
R217
12K
R215
2.7K
D204
R213
820K
R218
2.2k
K0.22
C215
Q203
Q204
C214
J150p
C210 50V1
T1
3
4
51
2
C1 1u
R4
22K
C4
K0.1
R7 1K
12
1LINE 2GND 3
SWP_RATE_CTL
4
FREQ_CTL
5
OUT
6
NC
7
Vs
8
LINE
R6
8.2K
R5
100
Q1
C2
50V10
100K(2125)
R104
10M(2125)
R102
R106
4.7K
D107
10M(2125)
R101
Q101
100K(2125)
R123
Q107
4.7K(2125)
R105
SW1
K0.047
C240
VR201 50K
23
1
15K
R240
K0.022
C460
R239 NC
R122
6.8K
D106
270
R126
22K
R127
820K
R128
C122
J150p
2.2K
R125
Q104
C121
K8200p
50V1
C110
L102
33u
L101
33u
Z0.1
C152
K0.1
C180
4.7K
R162
K0.047
C157
K0.1
C158
K0.047
C260
K0.1
C261
4.7K
R268
PC202
1
2
3
45
6
7
8
PC101
1
23
4
PC203
1
2
3
45
6
7
8
10K
R303
6.8K
R304
Q106
27K
R286
390
R192
Q249
Rb=47k,Rbe=47K
68K
R293
390
R292
D249
NC
R187
C184
K0.1
C284
K0.1
Q150
Rb=47K,Rbe=47k
22K
R185
15K
R186
D149
C266
NC
R129
82K
RLY1
0
R119
D103
C112
6.3V47
R222
4.7K
D109
R131
NC
Q108
NC
R130
100K
6.3V47
C252
R1
8.2K
J1
NC
Q2
J2
NC
C5
50V1
PC1
1
23
4
R132
NC
R133
D252
R282
10K
R281
J3 0
L2RLY
INUSE2/EXHOOK2
INUSE2/EXHOOK2
CH_SCEZER
INUSE1/EXHOOK1
L1/L2_CTL
L1RLY
L1BELL
L1BELL
ON/OFF_HOOK_CTL
L2BELL
L2BELL
AC_DOWNAC_DOWN
L2USE_CTL
L1USE_CTL
+8V
CID Pre-AMP
CID Pre-AMP
LINE1
LINE2
IC501
IC102
IC101
IC201
IC202
IC301
IC1
KX-TSC14B SCHEMATIC DIAGRAM (Main P.C. Board)