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IC6
1
Vss
2
CLE
3
ALE
4
WE
5
WP
6
N.C
7
N.C
8
N.C
9
N.C
10
N.C
11
12
13
14
15
16
17
18
I/O0
19
I/O1
20
I/O2
21
I/O3
22
Vss
23
Vcc
24
I/O4
25
I/O5
26
I/O6
27
I/O7
28
29
30
31
32
33
34
35
N.C
36
N.C
37
N.C
38
N.C
39
N.C
40
GND
41
R/
B
42
RE
43
CE
44
Vcc
IC12
1
OE
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
11
CK
12
Q7
13
Q6
14
Q5
15
Q4
16
Q3
17
Q2
18
Q1
19
Q0
20
Vcc
K1u
C68
K0.1u
C241
2.2K
R230
100u/16V
C230
MIC1
2.2K
R231
100u/16V
C232
D10P
C233
IC7
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
9
NC
10
NC
11
WE
12
NC
13
NC
14
NC
15
NC
16
NC
17
A17
18
A7
19
A6
20
A5
21 A4
22 A3
28
OE
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
VDD
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
DQ15
46
VSS
47
NC
48
A16
23 A2
24 A1
24 A1
26
CE
27
VSS
25
A0
IC8
1
1A
2
1B
3
2Y
4
GND
5
2A
6
2B
7
1Y
8
VCC
Q13
C103
K0.1u
R109
10K
R108
10K
IC13
1
OE
2
D0
3
D1
4
D2
5
D3
6
D4
7
D5
8
D6
9
D7
10
GND
11
CK
12
Q7
13
Q6
14
Q5
15
Q4
16
Q3
17
Q2
18
Q1
19
Q0
20
Vcc
C240
K0.1u
C71
C2P
R92
180R
R60
22R
TP49
C85
N.M.
L1
4.7u
C100
D10P
TP48
C86
N.M.
TP42
R91
180R
TP46
C83
N.M.
C62
1N8
TP40
TP44
ANT1
1
C104
C6P
DA1
1
3
2
C58
D10P
TP39
C59
C2P
C64
C6P
TP50
C57
D10P
TP47
R61
22R
R59
10K
C82 C2P
TP45
TP43
C105
D10P
R261
12K
R259
12K
R262
12K
R260
12K
R263
12K
R86
10K
R87
10K
R88
10K
R84
1K
R55
1K
D10P
C266
33R
R264
33R
R265
2.2K
R266
D10P
C267
+3.2V
+3.2V
+3.2V
C271
220u/10V
K0.1u
C66
K0.1u
C67
D10P
C231
TP109
SP-
1
TP104
JTIO
1
TP105
URX
1
TP106
UTX
1
TP107
GND
1
R64
1K
C63
J33P
RFM1
5
RSSI
6
VCC_OC
7
GND
8
SYCL
9
SYDA
10
SYEN
11
GND
12 RXDSG
13 SYRI
14
15
16
17
13 SYRI
14
15
16
17
18
GND
19
GND
20
RXDA
21
GND
22
GND
23
GND
24
PSEL
25
PAON
26
GND
27
VCC_PA
28
GND
29
GND
30
GND
31
GND
32
GND
33
RF1
34
GND
GND
1
GND
2
GND
3
TXDA
4
+4.0AV
+4.0AV
L3
N.M.
+3.2A
TP60
TP61
D200
D201
D202
D203
D204
D205
TP41
C84
C2P
+3.2V
+3.2V
+3.2V
R112
22R
330R
R276
TP110
D7
4.7V
D9
4.7V
D8
4.7V
D215
4.7V
330R
R279
2R2
R280
+3.2V
+3.2V +3.2A
2R2
R278
K1u
C276
+3.2A
D217
N.M.
C277
N.M. C278
N.M. C279
N.M.
C55
D
10P
R113
22K
C72
J820P
TP100
1
TP103
1
TP102
1
TP101
1
C73
K4.7u
IC10
1
CD
2
+Vref
3
+Vin
4
-Vin
5
Vout1
6
V+
7
GND
8
Vout2
Z1u
C283
N.M.
R222
100R
R221
120K
R220
39K
R223
C226
D10P
K0.1u
C225
D11
TP108
SP+
1
C220
D10P
C221
K0.1u
C224
J22P
D10P
C274
D10P
C275
CN10
HANDSETJACK
1 SP+(GREEN)
2 SP-(YELLOW)
3 MIC+(BLACK)
4 MIC-(RED)
0
R281
+3.2V
K820P
C287
K820P
C288
K820P
C289
K820P
C290
33R
R282
K820P
C291
K820P
C292
K820P
C293
1K
R283
1K
R284
K0.1u
C295
K0.1u
C296
C297
K0.1u
10K
R285
C301
J100P
22R
R289
C298
D10P
C300
K680P
IC15
1
+IN
2
V-
3
-IN
4
OUT
5
V+
10K
R286
10u/6.3V
C299
18K
R290
D216
4.7V
100K
R288
100K
R287
22K
R291
J100P
C303
K0.1u
C305
+3.2A
N.M.
R293
0
R292
Z1u
C227
C223
K220P
+4.0BV
+4.0BV
+4.0BV
+4.0BV
C311
33N
C312
C1P
C313
D10P
C302
J100P
C314
D10P
C315
D10P
C304
D10P
C316
D10P
+3.2V
R295
10K
C319
N.M.
C322
1N8
C321
N.M.
Z1u
C282
C323
0
ANT2
1
C320
1N8
C324
N.M.
CLE
ALE
WRN
RD
N
ACS0
RD
N
R/B
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
CE
ANT1
LE SO
ANT2
RXDA
RFCLK
SK
RXDSG
WRN
ACS1
DAB3
DAB2
DAB1
DAB0
DAB7
DAB6
DAB5
DAB4
DAB15
DAB7
DAB14
DAB6
DAB13
DAB5
DAB12
DAB4
DAB11
DAB3
DAB10
DAB2
DAB9
DAB1
DAB8
DAB0
DAB15
DAB14
DAB6
DAB13
DAB5
DAB12
DAB4
DAB11
DAB3
DAB10
DAB2
DAB9
DAB1
DAB8
DAB0
DAB7
ROW0
ROW1
ROW2
ROW3
ROW4
ROW5
CS
RES
LED4
LED3
LED2
LED5
PAON
TXDA
RSSI
COL0
COL0
COL1
COL1
COL2
COL2
COL3
COL3
COL4
HANDSET
KX-TCD540RUM/RUT: SCHEMATIC DIAGRAM (BASE UNIT)
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
N.C
GND
GND
GND
GND
(1)
(2)
(2)
(3)
(4)
(4)
(5)
(6)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(11)
(12)
(13)
(14)
(18)
(20)
(19)
(17)
(16)
(15)
4V
4V
0V
0V
3.2V
0V
3.2V
0V
3.2V
SP Phone_TX
Audio
Audio
Handset RX
Audio
Tone
Audio
Tone
Handset RX
Audio
Tone
Audio
Tone
Handset TX
Audio
Audio
SP Phone_RX
Audio
Tone
Audio
Tone
RX-DATA
10.368MHz burst
TX-DATA
117
KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
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