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KX-TCA275CE
KX-TCA275CE HANDSET SCHEMATIC DIAGRAM (2/2)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)(24)
(25)
(26)
(27)
(28)
(29)
(30)
(1)
7
8
11
10
9
LDO1_CTRL
LDO1_SNS
MIC_BIAS
RXDA
SYEN
SYDA
SYCL
RXDSG
RSSI
PSEL
PAON
TXDA
RFCONT
SYRI
C34
6.3V KB 22u
C33
6.3V KB 22u
IC5
1
SUSPEND
2
BIAS-IN
3
BIAS-OUT
4
IN
5
OUT1
6
VCC
7
GND
8
OUT2
R32
F43k
R33
F18k
Q10
CN10
1
2
4
3
5
Q17
1
6
2
Q14
Q11
1
2
5
6
Q13
D3.0V
5.0V
C28
10V 1u
BATT
C22
Z0.1
C26
1000p
L4
C29
Z1u
C27
10V 1u
D1.8V
C24 0.068u
AG
C21
0.068u
C23
10p
C30
NC
D15
C25
6.3V KB 22u
R38
470k
R35
270k
BATT
D16
R30
68k
R31
68k
R37
10k
D3.0V
R36
100k
R39
100k
R34
1M
R41
27k
C31
NC
AG
R52
2.2K
AG
R40
330
C36
10p
C37
6.3V KB 22u
R43
100
C38
K0.1u
R53
10k
C44
J47p
C49 10p
C40
Z0.1
R58
68k
C48 K470p
C46
10p
C41
Z 2.2u
C42
10p
R56
120
C53
10p
C67
10p
BATT
C60
10p
C56
10p
C62
NC
R67
0
C54
Z0.1
C65
10p
CN1
HEADSET_JACK
1
2
3
4
5
RF_GND
R66
NC
AG
R59
47k
R64
47k
R65
82k
R60
56k
D3.0V
R57
100k
C69
10p
AG
CN9
1
2
R70
33
R69
33
C58
10p
C57
10p
AG
AG
AG
C39
10p
AG
R72
0
C68
10p
R61
NC
BATT
C66
NC
C51
NC
C63
NC
C50
NC
IC6
NC
1
SUSPEND
2
BIAS-IN
3
BIAS-OUT
4
IN
5
OUT1
6
VCC
7
GND
8
OUT2
C45
NC
R55
10k
C47
NC
C52
NC
R68
NC
C55
NC
C59
NC
C43
NC
R54
NC
R42
0
R71
NC
R62
1
R63
1
C64
10p
D7
D5
D10
D6
D3
D8
D4
D9
D3.0V
R45
120
R44
120
R46
120
R47
120
R48
120
R49
120
R50
120
R51
120
Q12
E
C
B
PSEL
SYDA
RXDA
RXDSG
TXDA
SYEN
PAON
SYRI
RSSI
SYCL
BATT
BATT
RFCONT
C110
6.3V/100
C61
ESD
R74
10k
C122
10p
CN8
1
2
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D3.0V
R76
120
R77
120
R78
120
R79
120
R80
120
R81
120
R82
120
R83
120
R84
120
R85
120
D3.0V
CK18
SYRI
CK11
CK12
CK14
CK13
CK15
CK16
CK10
IC4
1
D1
2
D2
3
G
4
S
5
D3
6
D4
C72
Z0.1
C70
2200p
C35
0.1u
R29
R75
10k
POS1
+
-
EN:Low Output OFF
High Output ON
+
MIC (1JM)
-
Rear Speaker
Receiver
To RF BLOCK
Sub-PCB
D
F
E
C
B
A
H
G
3
4
C
E
B
10:D
10:E
7:B
Summary of Contents for KX-TCA275CE
Page 15: ...15 KX TCA275CE 5 Location of Controls and Components 5 1 Handset ...
Page 16: ...16 KX TCA275CE ...
Page 19: ...19 KX TCA275CE 7 Operating Instructions 7 1 Soft Keys ...
Page 20: ...20 KX TCA275CE ...
Page 21: ...21 KX TCA275CE 7 2 Handset Setting Menu Layout ...
Page 23: ...23 KX TCA275CE 7 5 DISPLAY ...
Page 25: ...25 KX TCA275CE 7 7 Function Keys ...
Page 26: ...26 KX TCA275CE 7 8 Flexible Keys ...
Page 27: ...27 KX TCA275CE 7 9 Caller ID ...
Page 28: ...28 KX TCA275CE 7 10 Character Mode Table ...
Page 31: ...31 KX TCA275CE Charger Unit NO Display On the LCD ...
Page 32: ...32 KX TCA275CE 5V Circuit 8 2 Battery Charge Trouble Handset 8 2 1 Charge On ...
Page 33: ...33 KX TCA275CE 8 2 2 Charge Off ...
Page 34: ...34 KX TCA275CE 8 3 LED Trouble Handset 8 3 1 Key Back Light 8 3 2 Charging And Ringing LED ...
Page 36: ...36 KX TCA275CE 8 6 No Voice Transmission ...
Page 37: ...37 KX TCA275CE 8 7 No Voice Reception 8 7 1 Talk Mode ...
Page 39: ...39 KX TCA275CE 9 Service Fixture Tools ...
Page 46: ...46 KX TCA275CE 4 6 Downloading Start After several seconds Display shows Flash Program Start ...
Page 65: ...65 KX TCA275CE 16 2 Cabinet and electrical Parts Location 16 2 1 Handset ...
Page 66: ...66 KX TCA275CE 16 2 2 Charger Unit ...
Page 67: ...67 KX TCA275CE 16 2 3 Accessories and Packing Materials ...