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Model
KX-TG7331CAM KX-TG7331CAT KX-TGA731RUM KX-TGA731RUT KX-TGA731RUC KX-TGA731RUS
Pages
102
Size
2.85 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / TELEPHONE EQUIPMENT
File
kx-tg7331cam-kx-tg7331cat-kx-tga731rum-kx-tga731ru.pdf
Date
PREV: Panasonic KX-TG7321UAC / KX-TG7321UAS / KX-TGA731RUC / KX-TGA731RUS (serv.man4) Service Manual / Supplement

Panasonic KX-TG7331CAM / KX-TG7331CAT / KX-TGA731RUM / KX-TGA731RUT / KX-TGA731RUC / KX-TGA731RUS Service Manual ▷ View online

77
KX-TG7331CAM/KX-TG7331CAT/KX-TGA731RUM/KX-TGA731RUT/KX-TGA731RUC/KX-TGA731RUS
13 Schematic Diagram
13.1. For Schematic Diagram
13.1.1. Base Unit (Schematic Diagram (Base Unit_Main))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagrams may be modified at any time with the development of new technology.
13.1.2. Handset (Schematic Diagram (Handset))
Notes:
1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagram may be modified at any time with the development of new technology.
13.1.3. Charger Unit (Schematic Diagram (Charger Unit))
Notes:
1. DC voltage measurements are taken with voltmeter from the negative voltage line.
2. The schematic diagram may be modified at any time with the development of new technology.
78
KX-TG7331CAM/KX-TG7331CAT/KX-TGA731RUM/KX-TGA731RUT/KX-TGA731RUC/KX-TGA731RUS
13.2. Schematic Diagram (Base Unit_Main)
1k
R70
1k
R69
GND
GND
GND
GND
GND
GND
GND
GND
C68
NC
GND
*C424
NC
NC
NC
NC
NC
GND
GND
+3.0V
GND
GND
UTX
URX
GND
GND
ANT_1
ANT2
NC
C108
A_1
NC
C104
ANT1
NC
L101
GND
GND
NC
L102
NC
C107
GND
ANT_2
NC
C103
GND
GND
0
R504
RA501
1
2
3
4
5
6
7
8
ANT1_TP
ANT2_TP
GND
GND
DA1
1
2
3
GND
GND
NC
C112
Pow_Adj
Pow_Adj
100n
C60
GND_C
GND
1u
C425
GND
GND
C102
10p
10p
C109
10p
C106
100p
C105
GND
100p
C110
GND
1n
C216
GND
NC
D203
100n
C217
D201
1u
C203
NC
C212
2.2k
R209
100n
C204
MIC-
SP-
6.3
100u
C202
GND
100n
C205
R201
NC
L201
100n
C210
100k
R203
10p
C209
+1.8V
GND
6.3 10u
C213
100n
C215
100n
C201
MIC+
2.2k
R208
SP+
100n
C208
100n
C207
D202
1k
R202
+3.0V
GND
GND
0
R204
GND
NC
C211
GND
L202
1n
C206
GND
IC201
1
GPIO4/
PCM_DI
2
GPIO5/PCM_DO
9
SPI_DI
3
GPIO6/PCM_CLK
4
GPIO7/PCM_FSC
5
VDD1
6
VDDIO1
7
CLK
8
*PF
10
SPI_DO
11
SPI_CLK
12
SPI_EN
13
AVD1
14
GPO9/PAOUTp
15
VDDPA
16
GPO8/PAOUTm
17
GPIO0
18
GPIO1
19
VDD2
20
VDDIO2
21
GPIO2
22
GPIO3
23
*RST
24
AVD2
25
*LSR
26
LSRp
27
MICh
28
*MIC
29
VREFm
30
VBUF
31
MICp
32
VREFp
33
Fin
330
R205
C507
NC
GND
0
RA502
1
2
3
4
5
6
7
8
GND
C506
NC
GND
C505
NC
GND
GND
0
R502
0
R501
GND GND
Q302
Q301
GND
GND
GND
GND
C101
15p
15n
L104
GND
R212
NC
R211
NC
R213
NC
UVCC
LE
RDI
TDO
SIO
SK
TAM_RESET
TAM_EN
TAM_WP
SPI_CLK
SPI_DO
SPI_DI
FLASH_CSn
*WP
Low_Rad
ANT2
ANT1
SPI2_CLK
SPI2_DI
SPI2_DO
MIC
10k
R76
NC
R77
NC
D204
VDD4
CN1-2
CN1-1
CN1-3
CN1-4
CN1-5
CN1-6
CN1-7
CN1-8
CN1-9
CN1-10
CN2-1
CN2-2
CN2-3
CN2-4
CN2-5
CN2-6
R210
1M
+1.8V
+1.8V
+1.8V
+1.8V
CLK
GND
NC
C426
NC
C427
NC
C428
NC
C429
NC
C218
NC
C219
NC
C220
NC
C221
NC
C222
GND
GND
10k
R79
+3.0V
2.2k
R206
2.2k
R207
220
R301
NC
R302
GND
10p
C508
10p
C509
10p
C510
10p
C214
10p
C223
10p
C224
C423
NC
NC
*C421
NC
NC
*C422
NC
*R424
NC
*R425
NC
*R426
NC
*R428
NC
*R429
0
0
*R503
*R303
NC
*R304
NC
NC
*R427
*Q303
*Q304
3p
C501
3p
C502
3p
C503
3p
C504
3p
C511
*Q101
NC
B
C
E
0
*R78
NC
*R103
*IC421
1
*CE
2
SO
3
*WP
4
VSS
5
SI
6
SCK
7
*HOLD
8
VD
D
*Q421
ROW2
PCM_DO
PCM_DI
PCM_CLK
PCM_FSC
KEY0
KEY1
KEY2
KEY3
KEY4
KEY5
ROW0
ROW1
ROW2
ROW3
ROW4
CLK
SDA2
SCL2
FLASH_CSn
SPI_CLK
SPI_DO
SPI_DI
CLK
KEY0
KEY1
KEY2
KEY3
KEY4
CHARGE
LED1
LED2
LED3
LED4
ROW3
ROW4
ROW1
ROW0
TAM_WP
SPI_CLK
FLASH_CSn
SPI_DO
TAM_RESET
TAM_EN
SPI2_CLK
SPI2_DI
SPI2_DO
SPI_DI
Low_Rad
CP_OUT1=3.0V
Hi
+
-
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(30)
(29)
(8)
RX_RF
TX_RF
Bell signal/Beep
3.0V
NC: No Components
79
KX-TG7331CAM/KX-TG7331CAT/KX-TGA731RUM/KX-TGA731RUT/KX-TGA731RUC/KX-TGA731RUS
GND
GND
Q8
1u
C55
GND
+1.8V
GND
GND
GND
56k F
R64
GND
GND
GND
L2T
L1T
L1R
L2R
SA1
L1
L2
GND GND
J101
GND
GND
+8.0V
DCM
DCP
100u
16
C52
GND
IC1
4
Fin
1
ADJ/GND
3
Input
2
Output
VDD3
GND
GND
(1608)
NC
C54
GND
10k
R16
GND
GND
GND
GND
100k
R14
NC
C12
GND
2.7k
R15
D3
4
1
3
2
LINE_DC
GND
GND
2.2k
R17
27k
R18
GND
K2.2u
C17
0.1u
C26
100k
R27
K1u
C15
GND
TP10
100
R25
4700p
C14
8.2k
R19
100k
R23
820
R31
27
R22
+1.8V
NC
C18
GND
GND
GND
GND
GND
NC
C24
0.01u
C25
NC
NC
C20
47k
R24
GND
GND
12
R21
GND
TP9
K0.22u
C23
470k
R28
K0.1u
C19
K0.22u
C21
GND
1u
C22
NC
C2
68k
R36
1k
R33
1k
R35
220p
C28
68k
R32
220p
C29
68k
R34
GND
1M
R4
10p
C13
K1000p
C6
180k
R5
GND
1M
R6
GND
10p
C11
180k
R3
K1000p
C5
GND
100k
R10
NC
R9
GND
+1.8V
GND
GND
100k
R8
NC
R7
100n
C62
GND
100n
C61
GND
3.3k
R61
3.3k
R26
+1.8V
1n
C58
TP16
TP16-sub
TP15
R53
NC
NC
NC
NC
1n
C56
1n
C57
GND
TP15-sub
3.3k
R52
GND
GND
GND
100n
C401
GND
GND
GND
100n
C64
ANT1
RXON
TXn
RF_RXn
RF_RXp
RXON
RF_RXn
RF_RXp
TXON
TXON
TXn
TXp
TXp
VDD_PADRV
VDD_PADRV
PSEL
PSEL
PON
PON
ANT2
+3.0V
D1
A
K
D12
Q4
B
C
E
Q2
B
C
E
Q5
D22
Q22
D23
+3.0V
100
R67
C67
NC
VDD1
1u
C66
GND
1k
R54
10k
R58
3A
F1
1k
R68
D21
10k
RA401
1
2
3
4
100n
C7
100n
C8
Q23
R63
NC
D5
A
K
D6
A      K
D9
A      K
1u
C59
Q401
+2.4V
+2.4V
GND
C402 1u 6.3
140
R51
100
R50
GND
R12
NC
R13
NC
NC
2.2k
R20
470
R30
10p
C65
10p
C63
DP1
DP0
EEP_WP
SCL2
SDA2
220
R65
220
R66
1k
R71
C69
NC
C70
N
C
1k
R72
1k
R73
1k
R74
+2.5_CP
GND
1u
C404
C403
NC
+2.5_CP +3.0V
NC
R402
R404
NC
GND
NC
R62
GND
C51
K1.0u
C50
K
1.0u
(3216)
10
R1
NC
(3216)
R2
NC
(6332)
R55
NC
C32
VDD2
VDD5
GND
Q3
1.5n
C3
1.5n
C4
680p
C9
680p
C10
50
10u
C27
22n
C30
0.1
C31
120
R29
X1
1
3
2
JTAG
NC
C71
GND
10p
C33
GND
NC
C34
NC
NC
NC
C35
10p
C36
GND
10p
C37
10p
C38
10p
C72
GND
10p
C39
GND
NC
R37
NC
C16
100n
C73
GND
CHARGE
10k
R405
SA2
NC
GND
10
330u
C53
R57
5.6
5.6
R56
D26
3p
C74
*IC401
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
IC7
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
AVS_XTAL
9
XTAL2
10
XTAL1
11
AVD_XTAL
12
RF_SUPPLY1
13
VDD1
14
SPI2_EN/P4_0
15
SPI2_CLK/P4_1
16
SPI2_DO/P4_2
17
SPI2_DI/P4_3
18
P4_4
19
LDO_CTRL
20
AVD
21
LSRn
22
LSRp
29
RINGn/P3_6
30
RINGOUT/RINGING/P3_5
31
PARADET/P3_4
32
ADC0/P3_3
33
ADC1/INT0/P1_0
34
NTC/ADC2
35
SOCp
36
SOCn
37
CHARGE_CTRL
38
P1_7/CHARGE
39
DP1/PAOUTp/P3_1
40
VDDPA
41
DP0/PAOUTn/P3_0
42
VBAT1
43
P4_5
44
P4_6
45
P4_7
46
VBAT2
47
CP_C1x
54
PON/P1_6
55
VDD2
56
P2_7/BXTAL
57
P1_5/INT5/RDI/VDDE
58
P1_4/INT4/TDOD
59
P1_3/INT3/SIO
60
P1_2/INT2/SK
61
P1_1/INT1/LE
62
P2_6/WTF_IN
63
P0_7/SPI_DI
64
P0_6/SPI_DO
65
P0_5/SPI_CLK
66
P0_4/SPI_EN
67
P0_3/SCL2
68
P0_2/SDA2
69
P0_1/URX/PWM0
70
P0_0/UTX
71
P5_0
72
P5_1
79
P2_4/SCL1/PCM_DO/DP3
80
P2_3/SDA1/PCM_DI/DP2
81
P2_2/PCM_CLK/CLK100
82
P5_5
83
P5_6
84
P5_7
85
P2_1/ECZ2/PWM1/LED4
86
P2_0/ECZ1/PWM0/LED3
87
NC
88
VSS
89
VDD3
90
LDORF_CTRL
91
RF_SUPPLY2
92
RFP0n
93
RFP4
94
RFP3
95
VDD_PADR
96
VSS_PADR1
97
RF_TXn
1
VSS_LNA1
2
RF_RXp
3
RF_RXn
23
VREFm
24
MICh
25
CIDOUT/
MICn
26
CIDINn/MICp
27
CIDINp/VREFp
28
RINGp/P3_7
48
CP_C2x
49
CP_C1y
50
VBAT3
51
CP_C2y
52
CP_VOUT1/LED1
53
CP_VOUT2/LED2
73
P5_2
74
P5_3
75
P5_4
76
RSTn
77
JTAG
78
P2_5/PCM_FSC/SF
98
RF_TXp
99
VSS_PADR2
100
RFP2
101
GND
PCM_FSC
PCM_CLK
PCM_DO
PCM_DI
KEY5
EEP_WP
TAM_WP
TAM_RESET
Low_Rad
LED4
LED3
LED2
LED1
SPI2_DI
SPI2_DO
SPI2_CLK
TAM_EN
SCL2
SDA2
CHARGE
EEP_WP
DC_IN
Charge -
Charge +
To RF
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(30)
(29)
(8)
Charge Current
Bell signal
Bell
signal
RX_AF
TX_AF
Caller ID, 
Bell Signal
Loop Current
0V
0.85V
TX_RF
RX_RF
1.2V p-p
3.0V
2.5V
1.8V
2.4V
KX-TG7331CA SCHEMATIC DIAGRAM (Base Unit_Main)
NC: No Components
80
KX-TG7331CAM/KX-TG7331CAT/KX-TGA731RUM/KX-TGA731RUT/KX-TGA731RUC/KX-TGA731RUS
13.3. Schematic Diagram (Base Unit_RF Part)
RX_RF
RX_RF
TX_RF
TX_RF
VDD_PADR
V
TXp
RF_RXn
RXON
TXn
TXON
PON
RF_RXp
PSEL
GND
D801
D802
GND
7p
C801
2.4p
C802
1.3p
C803
2.4p
C804
1k
R803
3p
C815
3p
C816
1k
R804
50
10p
C817
NC
50
10p
C818
NC
47
R805
100p
C822
220
R807
220
R806
IC801
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VCC
11
GND
5
PRAMP
6
PAON
1p
C806
NC
100n
C808
3.3n
C814
+3.0V
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
A_1
Pow_Adj
10p
C819
15p
C825
0.75p
C820
C807
NC
7p
C832
7p
C833
1.6p
C813
GND
GND
10p
C811
1n
L805
50
0.9p
C840
GND
C837
NC
4.7n
L803
10p
C809
R802
NC
50
10p
C113
C111
10p
50
GND
3.3p
C812
2.2p
C810
2.7n
L802
3.3n
L804
50
0.75p
C834
22n
L801
10p
C827
0.8p
C826
560
*R801
 TOP filter
  LPF
BB-PA
Power control
 isolator
 Rx Balun
Tx Balun
KX-TG7331  SCHEMATIC DIAGRAM (Base Unit_RF Part)
NC: No Components
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