Panasonic KX-TG8411RUB / KX-TG8411RUN / KX-TG8411RUT / KX-TG8411RUW / KX-TG8412RUT / KX-TGA840RUB / KX-TGA840RUN / KX-TGA840RUT / KX-TGA840RUW Service Manual ▷ View online
81
KX-TG8411RU//KX-TG8412RU/KX-TGA840RU
13 Schematic Diagram
13.1. For Schematic Diagram
13.1.1. Base Unit (Schematic Diagram (Base Unit))
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.
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.
82
KX-TG8411RU//KX-TG8412RU/KX-TGA840RU
13.2. Schematic Diagram (Base Unit)
3.0V
2.5V
TX _RF
TX _RF
RX _RF
Beep
Bell signal
Bell signal
GND
SPm
SPp
GND GND
GND
*C505
NC
*C502
NC
*SW1
1
2
GND
0.001
*C501
GND
+3.0V
100
R75
270k
*R425
UTX
URX
GND
ANT_1
ANT2
NC
C854
ANT1
GND
GND
ANT_2
GND
NC
C850
GND
GND
0
R511
NC
*R542
0
*R516
NC
*RA501
1
2
3
4
5
6
7
8
1k
R76
NC
*R532
ANT1_TP
ANT2_TP
GND
GND
GND
1u
C616
GND
+3.0V
GND
AP1
*CN5
NC
PARALLEL WIRE
GND
10k
R77
R78
N
C
GND
+2.5_CP
1u
C625
*C503
NC
NC
C430
GND
CL1
CL2
GND
10p
C811
GND
100n
C808
GND
GND
GND
PON
1k
R804
RF_RXp
RF_RXn
GND
GND
GND
TXp
GND
10p
C819
220
R806
GND
TXn
GND
PSEL
3.3n
C814
10p
C825
VDD_PADRV
TXON
1k
R803
GND
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
RXON
220
R807
10p
C809
GND
47
R805
GND
NC
*C421
GND
GND
10k
*R424
NC
*C423
GND
*Q421
VDD5
GND
NC
*C422
NC
*R426
NC
*R427
NC
*R428
NC
*R429
GND
10k
*R135
GND
10
R430
10p
C827
GND
GND
C859
10p
10p
10p
C855
10p
C857
100p
C856
100p
C858
NC
*C145
NC
*C146
10p
C812
10p
C630
10p
C631
GND
GND
10
100n
C60
CLK
GND_C
NC
*Q24
*C504
NC
GND
NC
C506
+1.8V
C837
NC
CN5-10
CN5-9
CN5-8
CN5-7
CN5-6
CN5-5
CN5-4
CN5-3
CN5-2
CN5-1
1.5p
C803
27n
L801
DA802
1
2
3
DA801
1
2
3
NC
*C511
NC
*C512
NC
*C513
NC
*C514
NC
*C515
NC
*C516
C853
2p
1.8p
C804
1.8p
C802
Shield
12
3
4
5
6
3n
L802
3n
L803
GND
C851
2p
10p
C822
3.3p
C805
3.3p
C806
2.2p
C810
2.2p
C813
VDD4
*C163
NC
NC
*C517
NC
*C518
NC
*C519
GND
C520
NC
GND
JTAG
3p
C860
GND
10p
C861
C861
GND
NC
*R86
NC
*R87
220
RA80
1
2
3
4
*R132
NC
NC
*C149
NC
*C150
GND
GND
100p
C823
GND
0.9p
C826
0.75p
C820
120
R802
0.5p
C834
1
*CE
2
SO
3
*WP
4
VSS
5
SI
6
SCK
7
*HOLD
8
VDD
1.5k
*R808
1.5k
*R801
SDA2
SCL2
TAM_CSn
SPI_CLK
TAM_WP
KEY0
KEY1
ROW1
ROW2
KEY2
ROW0
LED1
CHARGE
TAM_WP
SPI_DI
SPI_DO
SPI_DO
SPI_DO
TAM_CSn
SPI_DI
SPI_CLK
Low_Rad
LED2
ROW1
ROW2
KEY0
KEY1
KEY2
ROW0
RO
W
0
for TG8421/6421
for TG6411/8411
CP_OUT1=3.0V
Pow_Adj
Pre-matching
Balun
BPF
W 0.15mm
L 22+/-4mm
1st or 4th layer
L 22+/-4mm
1st or 4th layer
W 0.15mm
L 22+/-4mm
1st or 4th layer
L 22+/-4mm
1st or 4th layer
W 0.15mm
L 22+/-4mm
1st or 4th layer
L 22+/-4mm
1st or 4th layer
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
W 0.15mm
L 5.0mm
1st layer
L 5.0mm
1st layer
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
W 0.15mm
L 20+/-2mm
3rd layer
L 20+/-2mm
3rd layer
W 0.15mm
L 20+/-1mm
3rd layer
L 20+/-1mm
3rd layer
W 0.125mm
L 7.6mm
Gap 0.125mm
1st layer
L 7.6mm
Gap 0.125mm
1st layer
W 0.15mm
L 4.0mm x2 1st layer
L 4.0mm x2 1st layer
IC801
*IC421
NC
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(8)
(9)
NC: No Components
83
KX-TG8411RU//KX-TG8412RU/KX-TGA840RU
1.8V
3.0V
TX _RF
RX _RF
TX _AF
Bell signal
Caller ID
0.75V
0V
250mVp-p
Loop Current
Charge Current
RX_AF
Bell signal
GND
GND
Q8
1u
C614
GND
+1.8V
GND
GND
GND
GND
56k F
R615
GND
GND
GND
SA1
L1
L2
GND
GND
J101
GND
GND
+8.0V
K2.2u
C31
GND
4
Fin
1
ADJ/GND
3
Input
2
Output
GND
GND
GND
10k
R16
GND
GND
GND
GND
NC
(3216)
R123
100k
R14
2.7k
R15
D3
4
1
3
2
GND GND
2.2k
R17
GND
NC
*C16
27k
R18
GND
K2.2u
C17
GND
0.1u
C28
100k
R27
K1u
C15
GND
TP10
100
R116
4700p
C14
8.2k
R19
100k
R23
+1.8V
NC
C18
GND
GND
GND
GND
GND
NC
C24
NC
C57
47k
R24
GND
GND
12
R21
GND
TP9
K0.22u
C23
470k
R28
K0.1u
C56
K0.22u C141
GND
GND
1u
C22
(1005) NC
C155
1k
R33
1k
R35
GND
GND
10p
C136
GND
100k
R10
GND
+1.8V
GND
GND
100k
R8
100n
C72
100n
C61
GND
3.3k
R81
3.3k
R117
+1.8V
1n
C157
TP16
TP15
NC
*C48
NC
*C156
GND
GND
GND
3.9
R55
GND
GND
100n
C51
GND
GND
GND
100n
C75
NC
*D16
A
K
D1
A
K
Q4
D23
NC
*D15
AK
+3.0V
2.2u
C84
C306
NC
1u
C305
GND
GND
1k
R130
10k
R129
3A
F1
*R2
NC
D21
10k
RA402
1
2
3
4
*Q23
*D5
A
K
*D6
AK
D9
AK
1u
C615
Q9
+2.5V
+2.5V
GND
F 140
R39
F 100
R38
220
R106
220
R109
NC
C2
GND
C167
NC
VDD2
100n
C7
100n
C8
10p
C65
+2.5_CP
C623
NC
L2T
L1T
L1R
DCM
DCP
L2R
C12
NC
10p
C137
GND
C166
NC
100u
16
C32
50
10u
C27
*C49 NC
GND
10.368M
X1
1
3
2
120
R29
NC
D26
ANT1
RF_RXn
RXON
TXON
TXn
TXp
VDD_PADRV
PSEL
PON
ANT2
RF_RXp
GND
C626
NC
10
330u
C36
10k
R657
GND
GND
GND
GND
Q5
Q3
NC
*C148
NC
*C147
10p
C170
10p
C169
10p
C168
10p
C74
680p
C9
500
680p
C10
500
1k
RA1
1
2
3
45
6
7
8
*C622
NC
D22
LINE_DC
*R126
HAK_CL1
3.9
R56
TEST
VDD3
VDD1
NC
C1
10p
C171
120k
R36
C617
1u 10
5p
C29
5p
C30
C37
5p
1M
R4
1M
R6
180k
R3
180k
R5
C5
10n
10n
C6
10n
C42
10n
C43
4.7M
R42
4.7M
R43
680p
C3
680p
C4
33n
C54
C55
82n
1k
R37
82k
R32
82k
R34
820p
C52
820p
C53
GND
10p
C70
1
VSS_LNA1
2
RF_RXp
21
CIDINp/VREFp
3
RF_RXn
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
AVS_XTAL
22
RINGp/P3_7
23
RINGn/P3_6
24
RINGOUT/RINGING/P3_5
25
PARADET/P3_4
26
ADC0/P3_3
27
ADC1/INT0/P1_0
28
NTC/ADC2
41
CP_C2y
42
CP_VOUT1/LED1
43
CP_VOUT2/LED2
44
PON/P1_6
45
VDD1
46
P2_7/BXTAL
81
GND
9
XTAL2
10
XTAL1
11
AVD_XTAL
12
RF_SUPPLY1
13
LDO_CTRL
14
AVD
15
LSRn
16
LSRp
17
VREFm
18
MICh
19
CIDOUT/MICn
20
CIDINn/MICp
29
SOCp
30
SOCn
31
CHARGE_CTRL
32
P1_7/CHARGE
33
PAOUTp/P3_1
34
VDDPA
35
PAOUTn/P3_0
36
VBAT1
37
CP_C1x
38
CP_C2x
39
CP_C1y
40
VBAT2
47
P1_5/INT5/RDI/VDDE
48
P1_4/INT4/TDOD
49
P1_3/INT3/SIO
50
P1_2/INT2/SK
51
P1_1/INT1/LE
52
P2_6/WTF_IN
53
P0_7/SPI_DI
54
P0_6/SPI_DO
55
P0_5/SPI_CLK
56
P0_4/SPI_EN
57
P0_3/SCL2
58
P0_2/SDA2
59
P0_1/URX
60
P0_0/UTX
61
RSTn
62
JTAG
63
P2_5/PCM_FSC/SF
64
P2_4/SCL1/PCM_DO/DP3
65
P2_3/SDA1/PCM_DI/DP2
66
P2_2/PCM_CLK/CLK100
67
P2_1/ECZ2/PWM1/LED4
68
P2_0/ECZ1/PWM0/LED3
69
VDD2
70
LDORF_CTRL
71
RF_SUPPLY2
72
RFP0n
73
RFP4
76
VSS_PADR1
79
VSS_PADR2
77
RF_TXp
80
RFP2
75
VDD_PADR
78
RF_TXn
74
RFP3
*Q22
*C25
0.047
NC
*R7
NC
*R9
*Q2
10
*R124
10k
*R12
680
*R13
470
*R30
820
*R31
2.2k
*R20
27
R22
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
CHARGE
SCL2
SDA2
EEP_WP
Low_Rad
LED2
LED1
EEP_WP
DC_IN
Charge -
Charge +
TO RF BLOCK
NC
NC
NC
NC
NC
IC1
*IC401
*IC7
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(8)
(9)
KX-TG8411/8412RU SCHEMATIC DIAGRAM (Base Unit)
NC: No Components
84
KX-TG8411RU//KX-TG8412RU/KX-TGA840RU
13.3. Schematic Diagram (Handset)
BATT+
BATT-
0.1
R45
BATTERY
GND
CHG(+)
CHG(-)
R65
( )
1k
R66
5.6n
F1
D8
( )
100
R63
C36
( )
C45
K0.1u
C121
( )
C35
( )
C15
( )
+1.8V
3.3k
R22
GND
K1u
C47
W_LED-
W_LED+
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
C44
K0.1u
C48
( )
C150
( )
GND
1.2k
R7
100
R8
+1.8V
k0.1u
C40
D10p
C97
D10p
C96
K0.01u
C14
RF_RXp
ANT2
PON
PSEL
VDD_PADRV
TXp
TXn
TXn
TXON
RXON
ANT1
RF_RXn
2.2k
R25
0
R215
Q7
Q2
C41
( )
( )
BATTERY
K0.1u
C13
K0.1u
C11
2
12
5
12
4
12
AST
12
SP
12
TA
L
K
12
8
12
1
12
R
12
SOFT_A
12
3
12
9
12
SHARP
12
SOFT_C
12
0
12
7
12
6
12
0
R225
S1
1
2
3.3k
RA4
1
2
3
4
R4
( )
K1u
C50
K1u
C49
820
R28
820
R27
K1u
C51
CP+4.0V
CP+4.0V
CP+2.5V
C3
( )
C38
( )
56k
R203
F
10k
R64
GND
CP+4.0V
GND
BATTERY
L4
( )
L5
( )
L8
( )
C7
( )
GND
C12
K10u
D10p
C184
C43
D10p
C46
D10p
C16 K10u
3.9k
R2
GND_0
GND_0
C39
( )
GND
6.3V
330u
C2 CP2
Q9
10
R20
D7
27k
R30
C182
( )
1k
R6
R31
( )
C147
( )
0
R12
C53
K10u
C52
K10u
D10p
C17
D10p
C18
VREFm
D1
1k
RA1
1
2
3
45
6
7
8
1k
RA2
1
23
4
GND
GND
27k
R332
Q12
GND
K1u
C332
BATTERY
GND
Q11
27k
R331
1M
R330
D10p
C54
GND
D10p
C55
GND
CP4.0V
POWER
CP2.5V
X_CLK
( )
C4
GND
K0.1u
C5
GND
VREFm
C6
( )
CP+2.5V
220
R52
3.3k
R53
1k
R55
3.3k
R50
K1u
16V
C101
( )
C103
K1u
C27
K1u
16V
C102
10k
R54
( )
C28
( )
C107
GND
470
R51
( )
C106
C105
( )
25V
K1u
C100
C104
( )
CN3
1
Vss
CN3
2
Vg
CN3
3
XV0
CN3
4
V0
CN3
5
Vcc
CN3
6
Vss
CN3
7
Vcc
CN3
8
/CS
CN3
9
IF3
CN3
10
IF1/IF2
CN3
11
RST
CN3
12
Vcc
CN3
13
RS(A0)
CN3
14
SI
CN3
15
Vcc
CN3
16
SCL
CN3
17
Vm
CN3
18
Vss
TEST
LED12
UTX
URX
GND
BAT
JTAG
220
RA61
1
2
3
4
K1u
C331
6.3V
330u
C1 CP1
82
R71
SW1
1
2
3
6
5
4
7
8
X1
10.368M
1
3
2
LED1
LED5
LED6
LED2
LED3
LED4
Q4
270
R305
270
R302
270
R301
270
R300
270
R304
270
R303
GND
C138
( )
( )
C139
D10p
C29
1
VSS_LNA1
2
RF_RXp
21
CIDINp/VREFp
3
RF_RXn
4
VSS_LNA2
5
RFP1
6
RFP0
7
REF_RES
8
A
VS_XT
AL
22
RINGp/P3_7
23
RINGn/P3_6
24
RINGOUT/RINGING/P3_5
25
PARADET/P3_4
26
ADC0/P3_3
27
ADC1/INT0/P1_0
28
NTC/ADC2
41
CP_C2y
42
CP_VOUT1/LED1
43
CP_VOUT2/LED2
44
PON/P1_6
45
VDD1
46
P2_7/BXT
AL
81
GND
9
XT
AL2
10
XT
AL1
11
A
VD_XT
AL
12
RF_SUPPL
Y1
13
LDO_CTRL
14
AV
D
15
LSRn
16
LSRp
17
VREFm
18
MICh
19
CIDOUT/MICn
20
CIDINn/MICp
29
SOCp
30
SOCn
31
CHARGE_CTRL
32
P1_7/CHARGE
33
PAOUTp/P3_1
34
VDDPA
35
PAOUTn/P3_0
36
VBAT1
37
CP_C1x
38
CP_C2x
39
CP_C1y
40
VBAT2
47
P1_5/INT5/RDI/VDDE
48
P1_4/INT4/TDOD
49
P1_3/INT3/SIO
50
P1_2/INT2/SK
51
P1_1/INT1/LE
52
P2_6/WTF_IN
53
P0_7/SPI_DI
54
P0_6/SPI_DO
55
P0_5/SPI_CLK
56
P0_4/SPI_EN
57
P0_3/SCL2
58
P0_2/SDA2
59
P0_1/URX
60
P0_0/UTX
61
RSTn
62
JTAG
63
P2_5/PCM_FSC/SF
64
P2_4/SCL1/PCM_DO/DP3
65
P2_3/SDA1/PCM_DI/DP2
66
P2_2/PCM_CLK/CLK100
67
P2_1/ECZ2/PWM1/LED4
68
P2_0/ECZ1/PWM0/LED3
69
VDD2
70
LDORF_CTRL
71
RF_SUPPLY2
72
RFP0n
73
RFP4
76
VSS_PADR1
79
VSS_PADR2
77
RF_TXp
80
RFP2
75
VDD_PADR
78
RF_TXn
74
RFP3
LDO_CTRL
COL0
SOCn
CHARGE_CTRL
SOCp
CHARGE
KEY_LED
COL3
COL4
COL5
ROW0
COL1
COL2
ROW2
ROW1
ROW3
ROW2
ROW1
JTAG
CHARGE
CHARGE_CTRL
URX
UTX
BELL_LED
COL0
COL1
COL2
COL3
COL4
COL1
COL2
COL3
COL4
COL5
KEY_LED
LCD_CSB
LCD_RESET
LCD_CD
LCD_SDA
LCD_SCL
SOCn
ROW3
ROW0
LDO_CTRL
LCD_SCL
LCD_SDA
LCD_CD
LCD_RESET
LCD_CSB
SOCp
BELL_LED
To Charge
Terminal
Terminal
To Battery
WHITE LED
ON LCD UNIT
KEY BACKLIT
(Blue)
(Blue)
TO RF BLOCK
BELL LED
(Amber)
To PA
To Color LCD Unit
LCD BACKLIT
White
*IC1
(1)
(2)
(3)
(4)
(3)
(4)
(5)
(7)
(6)
(9)
(10)
(11)
(12)
(13)
(14)
(8)
NC: No Components
Charge Current
0.75V
0V
250mVp-p
2.5V 4.0V
TX _RF
RX _RF
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