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(1)
(2)
(3)
(4)
(5)
*SW2
(6)
11
J34
(7)
1
6
J33
2
7
C
C
3
8
J24
4
9
5
10
12
R5
(8)
47k
(9)
(10)
L651
*R657
(11)
*Q652
NC
R660
(12)
NC
*R653
NC
NC
NC
*Q653
(13)
(14)
(15)
J47
(16)
(17)
(18)
(19)
J21
(20)
(21)
(22)
*R115
10k
(23)
(24)
(25)
(26)
(27)
J5
(28)
J7
(29)
(30)
J46
(31)
JP4
(32)
(33)
Q601
(34)
Q603
(35)
J27
J38
(36)
(37)
HOOK DETECT
(38)
(39)
(40)
(41)
(42)
(43)
(44)
(45)
CN1
(46)
CN1
CN2
PCB
(47)
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KX-TS2388RUB/KX-TS2388RUW/KX-TS2388CAB/KX-TS2388CAW/KX-TS2388UAB/KX-TS2388UAW
RINGER DETECT
J48
4
1
R7
0
3
2
R8
10k
*R9
39K
PC1
C6
C5
R10
10k
1u 50
0.01 u
*SW1
NC
J49
Hi-impedance
circuit
PULSE MUTE /
LINE SEIZER
EX-HOOK
DETECT
NC
*Q105
J4
Q110
*Q106
R127
6.8 k
NC
*R111 NC
J6
TONE
DETECT
L201
C203 2200p
1
8
AOU T
V+
R204
2
7
A-I N
BOUT
390k
3
6
A+I N
B-I N
4
5
GND
B+I N
Q201
IC201
*R532
NC
*C532
NC
FSK / DTM F
R553
R551
C551
22K
27K
0.01 u
C552
R554
R552
22K
27K
0.01 u
Handset Sending
Handset Receiving
Ringer
*D3
*D5
*D4
*JP 1
NC
*D6
*D1
LED
2AP
WHITE
CN3-1
*R123
*Q109
*CN3- 1
270k
PULSE SHAP E
*PC101
PATTERN
u
*R124
2.2 k
AGC
*R180
*Q101
0
SW101
*R181
NC
*Q181
PULSE
NC
SHAPE
NC
Q102
Q103
JP101
*Q111
Q104
R132
470K
D105
R10 8
56k
*C200
NC
D201
IC302
5
VI N
1
VOU T
2
GND
STBY
4
3
NC
WAKEUP CIRCUI T
*R509
*C509
*Q502
27k
2200p
*Q501
*R515
*R514
10k
47k
KX-TS2388RU/UA/CA SCHEMATIC DIAGRAM (Main)
31
*R2
0
*R1
1.8k (0.5W )
250
*C1 1u
RED
WHITE
RED
LED
2AP
CN3-2
JJ10 1
*CN3- 2
SA101
C101
*SA102
*L10 1
33u
2
1
680p 500V
NC
1
2
4
3
D101
C102
*L10 2
33u
680p 500V
GND
IN-US E
DETECT
Q108
CONTRO L
D303
CIRCUIT
for batter y
NC
consumption
JP301
JP302
1
VI N
5
VOU T
2
GN D
D301
STBY
Q301
3
4
NC
JP303
IC301
NC
NC
JP304
J37
J36
*IC501
8
1
VDD
OUT 1
7
2
OUT 2
IN-1
6
3
IN-2
IN+ 1
5
4
IN+ 2
VSS
Speaker Phone Sending
Speaker Phone Receiving
NC: No Components
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