Panasonic KX-TG8125RU / KX-TGA810RU / KX-TGA810RUS / KX-TGA810RUT Service Manual ▷ View online
73
KX-TG8125RU/KX-TGA810RU
10u
C27
C29
NC
+3.3V
C101
NC
2.2k
R102
470
R103
Q10
1
3
2
C103
NC
C104
NC
C105
NC
1
GND1
2
ANT2
3
VCCPA
4
GND2
5
GND3
6
VCC_OC
7
GND4
8
RSSI
9
SYRI
10
GND5
11
GND6
12
SYEN
13
SYD
A
14
SYCL
15
GND7
16
RX_D
A
T
A
17
GND8
18
TXDA
19
GND9
20
*RESET
21
ANT1
22
GND10
23
GND11
24
GND12
25
GND13
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
A_1
32
GND19
C108
NC
R104
NC
C115
NC
C116
NC
C26
NC
C109
NC
C111
NC
C113
NC
C114
NC
C132
NC
R105
NC
J22p
C112
CLK
C130
NC
C131
NC
C128
NC
R110
NC
R111
100
C129
NC
R112
1k
K1000p
C127
J150p
C126
C107
NC
C106
NC
+2.5V
270
R106
D10p
C118
D10p
C120
C122
NC
L7
33n
DA
1
1
2
3
R107
NC
C121
NC
L5
NC
R109
180
R108
NC
C125
D10p
D14
1
2
D13
1
2
Q12
2
3
1
10k
R98
10k
R99
Q13
2
3
1
K1000p
C97
+2.5V +1.8V
+2.5V
SP+
SP-
+3.3V
+2.5V
330
R91
NC
C87
10k
R89
+3.3V
C86
K0.01u
+3.3V
Q11
2
3
1
22k
R86
2.2k
R85
1k
R83
2.7k
R84
NC
R88
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
A
VD2
25
*LSR
26
LSRp
27
MICh
28
*MIC
29
VREFm
30
VBUF
31
MICp
32
VREFp
33
Fin
K0.1u
C84
K0.1u
C83
K0.1u
C80
K0.1u
C133
K0.1u
C85
K0.1u
C82
100k
R82
1k
R87
1k
R92
NC
C90
K0.1u
C89
NC
C91
NC
C88
R90
NC
R113
NC
+3.3V
0
R114
NC
R115
10k
R100
ANT
A_1
A_2
CN5-3
GND
CN5-1
ROW0
CN5-2
ROW1
CN6-1
ROW2
CN6-2
KEY0
CN6-3
KEY1
CN6-4
LED1
CN6-5
VDD
CN5-4
LED2
CN5-5
GND
K0.1u
C142
1M
R118
K0.1u
C81
0
R93
0
R94
0
R95
0
R96
0
R97
1u
C102
100n
C28
L4
6.8n
C117
3p
10p
C119
220
R119
K1000p
C110
1
RDY/*BUSY
2
*RESET
3
*WP
4
NC1
5
NC2
6
VCC
7
GND
8
NC3
9
NC4
10
NC5
11
*CS
12
SCK
13
SI
14
SO
15
NC6
16
NC7
17
NC8
18
NC9
19
NC10
20
NC11
21
NC12
22
NC13
23
NC14
24
NC15
25
NC16
26
NC17
27
NC18
28
NC19
270
R120
10
R101
C124
1p
CN6
CN5
10p
C92
10p
C93
10p
C94
10p
C95
10p
C96
2.2n
L11
0.5p
L6
ANT_1
6.8n
L3
2.2n
L10
ANT_2
820
R31
470
R30
SK
SIO
TDO
RESET
RDI
RSSI
LE
TAMIC_CSn
SPICLK
SPIDI
SPIDO
ANSWER_ON
MESSA
GE
RFCLK
SPIDI
SPIDO
SPICLK
TAM_RSTn
RDY
MESSAGE
ANSWER_ON
NSA/CLIP
ROW0
RFCLK
TAM_CSn
T
A
M_RSTn
KEY1
KEY0
ROW2
ROW1
ROW1
for TG7120/8120
Flat-cable
RF Module
0V
2.5V
10.368MHz
RX DATA
TX DATA
Beep/Bell signal
3.3V
IC10
IC9
IC8
(1)
(2)
(3)
KX-
TG8125RU
SCHEMATIC DIAGRAM (Base Unit)
NC: No Components
RF Module
FLASH MEMORY
74
KX-TG8125RU/KX-TGA810RU
12.3. Schematic Diagram (Base Unit_Operation)
SKIP
1 2
VOL_UP
1 2
REPEAT
1 2
VOL_DOWN
1 2
PLAY
1 2
STOP
1 2
ERASE
1 2
ANS_ON
1 2
LOCATOR
1 2
GND
VDD
LED2
1
2
LED2T
CN10-1
CN11-3
CN10-3
CN11-2
CN11-1
CN10-5
CN11-4
CN10-2
CN10-4
CN11-5
LED1
1
2
KX-TG8125 SCHEMATIC DIAGRAM (Base Unit_Operation)
75
KX-TG8125RU/KX-TGA810RU
Memo
76
KX-TG8125RU/KX-TGA810RU
12.4. Schematic Diagram (Handset)
1s
(When on charge)
Charge Current
Back light OFF: 4.2V
Back light ON: 3.5V
Back light ON: 3.5V
TX DATA
RX DATA
115kHz
(Talk Mode)
1.8V
2.5V
0.7V
0V
25mVp-p
J1
J2
5.6n
F1
4.0V
330u
C1
47u
L1
D1
1 2
6.3V
330u
C2
100m
R45
5.6k
R46
K1u
C34
Q1
1
3
2
100m
R1
68
R2
Q3
1
3
2
Q2
1
3
2
BATTERY
+4.2V
VDD3
+2.5V
+1.8V
VDD2
VDD1
10u
L4
10u
L5
Q4
1
3
2
D7
1 2
Q9
1
3
2
10k
R6
Q5
2
3
1
D6
1 2
220k
R7
+2.5V
+1.8V
59
LDO1_CTRL
61
P16/PON/INT6
63
LDO1_sense
65
AVD2
67
LSRp/REF
69
VREFm
71
AGND
73
VREFp
4
VSS1
75
P14/*INT4
6
LED2/PWM1/P21
77
P22/CLK100
8
LED_BIAS/P36/PD6
79
ADC3
10
SCL1/P24
12
*INT2/P12
14
AVS
16
Xtal1
18
RFCLKp
20
VDDRF
22
TDO
24
SK
26
LE
28
P32/PD2
30
PAOUTm
32
PAOUTp
34
P33/PD3
36
TDOD/P35/PD5
38
VDDIO2
40
PCM_FSC/*INT0/P10
42
P01/URX
44
P03/SDA2
46
P05/SPICLK/PCM_CLK
48
P07/SPIDI/PCM_DIN
50
VDD3
52
P17/CHARGE/INT7
54
DC_STAB
56
DC_CTRL
58
VBAT1
60
LDO2_CTRL
62
P26/STOP_CHARGE
64
AVS2
66
*LSR/REF
68
*MIC
70
VBUF
72
MICp
1
*INT1/P11
3
VDD1
74
P30
5
LED1/PWM0/P20
76
P13/*INT3
7
LED3
78
AVS_sense
9
SDA1/P25
80
ADC0
11
*INT5/VDDE/P15
13
AVD
15
CAP
17
VSSRF
19
RSSI/RFCLKm
21
RFCLKd
2
VDDIO1
23
RDI
25
PD1/SIO
27
P31/PD1
29
VSSPA1
31
VDDPA
33
VSSPA2
35
P34/PD4
37
VSS2
39
VDD2
41
P00/UTX
43
P02/JTIO
45
P04/SCL2
47
P06/SPIDO/PCM_DOUT
49
VSS3
51
P23/ADC1
53
*RST
55
DC_I
57
DC_Sense
4.7
R12
X1
1
2
3
5.6M
R19
INT
1 2
CANCEL
1 2
SOFT_A
1 2
SOFT_C
1 2
R
1 2
UTX
URX
GND
C94
NC
1k
R66
10k
R64
+2.5V
+2.5V
10
R91
POWER
K1u
C39
TP20
TP21
BAT
UP
1 2
DOWN
1 2
RIGHT
1 2
LEFT
1 2
47
R71
R70 NC
K1u
C29
Q12
1
3
2
+4.2V
BATTERY
+1.8V
SOFT_B
1 2
SP
1 2
J15p
C7
C8
K0.22u
C9
NC
K0.1u
C25
K0.1u
C26
7
1 2
4
1 2
TALK
1 2
S1
1 2
LED1
LED-
J3
J4
D8p
C6
LED10
A
K
NC
C91
NC
C92
K0.1u
C19
K0.1u
C24
2
1
2
3
1
2
1
1 2
6
12
8
1
2
5
1
2
9
1
2
AST
1
2
0
1
2
SHARP
1
2
L6
NC
5.6k
R47
1k
R61
1k
R62
R63 NC
JTAG
VDD4
K0.1u
C30
K0.1u
C32
J100p
C35
1k
R8
470
R5
K0.01u
C38
39k
R11
K1000p
C18
K0.1u
C21
K0.1u
C20
100
R13
K0.1u
C22
10k
R65
C93
NC
1k
R73
LED4
1
2
LED5
1
2
LED6
1
2
LED7
1
2
LED8
1
2
LED9
1
2
NC
C31
NC
C33
NC
C36
CN3
2
CN3
12
CN3
1
CN3
3
CN3
13
CN3
4
CN3
14
CN3
5
CN3
15
CN3
6
CN3
16
CN3
7
CN3
17
CN3
8
CN3
9
CN3
18
CN3
10
CN3
19
CN3
11
CN3
20
3.3k
R15
1k
R16
C23
NC
D8
2
1
1n
C96
K0.1u
C84
0
L7
D9
NC
1
2
NC
D10
1
2
NC
D11
1
2
NC
D12
1
2
0.1u
C3
Q7
B
C
E
Q8
B
C
E
120
R92
1u
C15
D10p
C4
D2
1 2
2.2u
C5
2.2u
C10
1n
C114
1u
C27
NC
L14
NC
L13
+2.5V
10k
R108
100
R103
100
R95
100p
C107
100p
C106
100
R96
100
R104
100n
C28
100
R105
100p
C105
100
R97
100
R106
100
R98
100p
C104
100
R99
100
R107
100p
C103
1n
C97
DC_I
AVS_sense
ADC3
STOP_CHARGE
UTX
URX
JTAG
ROW0
COL5
COL4
COL3
COL2
COL1
LE
SIO
SK
RDI
TD0
ADC3
AVS_sense
LCD_RESET
ROW3
KEY_LED
STOP_CHARGE
CHARGE
DC_CTRL
DC_I
LDO2_CTRL
LDO1_CTRL
LDO1_CTRL
ROW2
LCD_CD
RINGER_LED
LCD_CSB
ROW1
COL0
COL0
COL1
COL2
COL3
UTX
URX
JTAG
RSSI
KEY_LED
ROW0
ROW1
ROW3
CHARGE
LCD_BACK
LCD_BACK
COL5
COL4
ROW2
DC_CTRL
RESET
LCD_SDA
LCD_SCL
RINGER_LED
HEADSET_DET
RFCLK
LDO1_CTRL
LDO2_CTRL
10k
R109
LCD_SDA
LCD_SCL
LCD_RESET
LCD_CSB
LCD_CD
IC1
BBIC
(1)
(2)
(3)
(4)
(5)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
NC: No Components
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