DOWNLOAD Panasonic KX-TG7321UAC / KX-TG7321UAS / KX-TGA731RUC / KX-TGA731RUS Service Manual ↓ Size: 2.09 MB | Pages: 104 in PDF or view online for FREE

Model
KX-TG7321UAC KX-TG7321UAS KX-TGA731RUC KX-TGA731RUS
Pages
104
Size
2.09 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tg7321uac-kx-tg7321uas-kx-tga731ruc-kx-tga731ru.pdf
Date
PREV: Panasonic KX-TG7321RUC / KX-TG7321RUS / KX-TGA731RUC / KX-TGA731RUS (serv.man4) Service Manual / Supplement

Panasonic KX-TG7321UAC / KX-TG7321UAS / KX-TGA731RUC / KX-TGA731RUS Service Manual ▷ View online

81
KX-TG7321UAC/KX-TG7321UAS/KX-TGA731RUC/KX-TGA731RUS
+1.8V
1.8V
MIC-
MIC+
RECEIVER
+
-
SP-PHONE_SPEAKER
+
-
C70
NC
C71
NC
10p
C72
10p
C73
C113
NC
C152
NC
C140
NC
10k
R40
10k
R41
100p
C104
100p
C105
C106
NC
100p
C103
C107
NC
GND
GND GND GND
GND
GND
BATTERY
0
R152
GND
GND
10k
R42
GND
16V
K0.47
C181
R253
NC
R255
NC
R157
NC
D3
2
1
D4
2
1
C75
NC
C74
NC
VREFm
VREFm
CN5
CS
1
CN5
CAP1-
10
CN5
RS
3
CN5
VSS
7
CN5
SDA(SI)
5
CN5
VDD
6
CN5
CAP1+
11
CN5
V4
17
CN5
SCL
4
CN5
V2
15
CN5
V3
16
CN5
CAP2+
12
CN5
CAP3+
9
CN5
V1
14
CN5
CAP2-
13
CN5
RESET
2
CN5
V0
18
CN5
VOUT
8
GND
GND
MIC
PB1
1
2
C10
NC
RG+3.1V
R256
NC
470
R51
470
R52
C76
NC
C77
NC
VREFm
VREFm
64K
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
3.3k
R53
3.3k
R50
RG+3.1V
0.1u
C172
1u
C80
C174
1u
16v
C173
1u
16v
1u
C176
1u
C175
C180
K0.47
16V
C178
K0.47
16V
C179
K0.47
16V
C177
K0.47
16V
D19
D20
+1.8V
R271
NC
GND_0
GND_0
GND_0
GND_0
D13
D14
+3.0V
R254
NC
0
R55
10k
R54
GND
GND
GND
GND_0
GND_0
CP+2.5V
CP+2.5V
100p
C842
10p
C118
10p
C125
GND
220
R108
220
R107
10p
C117
GND
GND
ANT_TP
10p
C124
ANT1
ANT2
100p
C841
GND
GND
GND
1p
C834
7p
C832
GND
GND
10p
C811
10p
C809
GND
100n
C808
7p
C833
100p
C822
50
1.5p
C826
220
R807
1.3p
C803
1k
R803
220
R806
47
R805
D801
1.6p
C813
GND
GND
2.4p
C802
7p
C801
BATTERY
GND
GND
2.4p
C804
GND
D802
4.7n
L804
0.75p
C820
4.7n
L802
10p
C819
GND
1.6p
C810
7p
C812
3.3n
C814
0.5p
C837
GND
GND
GND
GND
1k
R804
1
PSET
2
VCCS
3
PI
4
PIX
7
PSEL
8
POX
9
PO
10
VCC
11
GND
5
PRAMP
6
PAON
GND
GND
GND
4.7n
L803
GND
C807
NC
GND
10p
C825
DA1
1
2
3
RF_RXn
TXON
RXON
VDD_PADRV
Txn
Txp
PSEL
PON
RF_RXp
0
R56
0
R58
0
R57
GND
270
R802
2p
C184
2p
C185
L10
33
L11
33
620
R801
LCD_CSB
LCD_CD
LCD_SCL
LCD_RESET
LCD_SDA
LSRp
LSRn
MICp
MICn
(MAX500mA)
to LCD UNIT
IC3
IC801
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(11)
(12)
(8)
KX-TGA731 SCHEMATIC DIAGRAM (Handset_Main)
NC: No Components
1.8V
RX_RF
TX_RF
TX_RF
TX _AF
RX-AF
(Handset)
Sp-phone RX
Beep
82
KX-TG7321UAC/KX-TG7321UAS/KX-TGA731RUC/KX-TGA731RUS
12.5. Schematic Diagram (Charger Unit)
J1
2
1
TP3
G
TP2
TP1
TP4
R1 10
D1
A
K
F1
SCHEMATIC DIAGRAM (Charger Unit)
83
KX-TG7321UAC/KX-TG7321UAS/KX-TGA731RUC/KX-TGA731RUS
13 Printed Circuit Board
13.1. Circuit Board (Base Unit_MAIN)
13.1.1. Component View
PQ
UP11538Z
A
PbF
1
4
8
5
C55
C54
C614
SW1
C14
C144
C502
C505
C29
F1
3.0A
ANT_2
C504
C36
C157
C622
C503
C619
C618
C27
C1
C2
C7
C118
C125
C18
C56
C155
CN5
R116
R36
R516
R132
R801
JT
A
G
IC401
R78
R77
R657
R106
R109
R130
R57
R129
R511
R56
R24
R18
R20
R19
R55
R23
R14
R29
TP9
TP10
RA501
D22
D3
D12
Q24
Q5
E
E
E
Q3
Q4
C166
C12
C57
C22
C23
C24
C306
C9
C10
C148
C147
C501
C51
C30
D1
C31
C32
C163
C37
C141
X1
C25
R15
R28
R27
R532
R38 R39
R631
R542
R654
R653
R17
R16
IC1
RA402
D9
D6
D5
Q23
Q8
R8
L1
ANT_1
L2
SA1
R7
D15
KX-TG7321 CIRCUIT BOARD  (Base Unit (Component View))
84
KX-TG7321UAC/KX-TG7321UAS/KX-TGA731RUC/KX-TGA731RUS
13.1.2. Bottom View
C430
CLK
GND_C
C137
C832
C621
C620
C4
C117
C123
DA
1
C804
C124
C811
C807
C813
C808
C822
R804
R75
C53
C61
C74
C814
1
E
C75
C72
C837
C827
C802
C834
C168
C52
C422
C625
C617
C60
C49
R12
R124
LINE_DC
R123
R13
R30
R31
R430
R83
R426
VDD4
VDD2
VDD5
VDD3
URX
GND
CL2
J101
Q9
UTX
DCP
DCM
VDD1
R429
1
4
8
5
R32
R615
R5
R6
R2
R805
R802
R135
ANT2_TP
R803
R807
1
20
60
41
21
40
80
61
R33
R117
R428
R427
L801
L802
TP16
TP15
CHARGE+
CHARGE-
L1R
YELLO
W
L1T
GREEN
L2T
WHITE
CL1
ANT1_TP
L2R
RED
D16
Q2
Q421
Q22
SPm
SPp
C8
C146
C423
C156
C48
C149
C145
C421
C624
C84
C136
C623
C626
C15
C16
C17
C167
R100
C28
C6
C5
C3
C121
C119
C160
C158
C833 
C820
C826
C825
C801
C159
C809
C819C810
C812
C803
C122
C161
C65
C305
C615
C616
R86
R76
R424
R81
R621
R82
R652 
R651 
R650
R806
R34
R656
R35
R79
R80
R22
R21
R9
R10
R3
R4
R87
R126
R425
L804
L803
L5
L7
L4
IC7
IC801
IC421
D23
D26
D21
D802
D801
KX-TG7321 CIRCUIT BOARD  (Base Unit (Bottom View))
PQ
UP11538Z
KX-TG7321/7301/8321
8301/8021/8011
KX-TG73      /80
ONL
Y
PbF
A
GND
GND
VDD3 (3.0 
V)
URX
VDD2
LINE_DC
(2.4 V)
VDD1 (1.8 
V)
VDD4 (3.0 
V)
VDD5 (2.5 
V)
CLK
(10.368 MHz)
ANT2_TP
DC_IN
RESET (IC1: pin 61)
UTX
L1R
L1T
L2T
ANT1_TP
L2R
CHARGE+
CHARGE-
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