Panasonic KX-TG8225RUB / KX-TG8225RUJ / KX-TG8225RUM / KX-TG8225RUR / KX-TG8225RUW / KX-TG8226RUB / KX-TG8226RUJ / KX-TG8226RUM / KX-TGA820RUB / KX-TGA820RUJ / KX-TGA820RUM / KX-TGA820RUR / KX-TGA820RUW Service Manual ▷ View online
73
KX-TG8225RU/KX-TG8226RU/KX-TGA820RU
Memo
74
KX-TG8225RU/KX-TG8226RU/KX-TGA820RU
12.2. Schematic Diagram (Base Unit)
TX_AF
TX DATA
RX DATA
0 V
2.5 V
10.368 MHz
3.3 V
Beep/Bell signal
*C18
10p
+2.5V
+3.3V
C101
NC
R102
NC
R103
NC
R110
NC
R112
1k
+2.5V
10p
C118
C122
NC
DA1
1
2
3
L5
NC
ANT_1
ANT_2
R109
180
C125
10p
10k
R98
10k
R99
R63
2.2k
+2.5V
C50
10n
+2.5V
+1.8V
+2.5V
SP+
SP-
+3.3V
330
R91
0
R88
2.2k
R62
100n
C84
1k
R92
TP10
ANT
A_1
A_2
CN5-1
CN5-6
CN5-3
CN5-4
CN5-5
CN5-10
CN5-9
CN5-8
CN5-7
CN5-2
12
R21
27
R22
1u
C22
C102
NC
*C16
C17
100n
*C28
L4
NC
CN5
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
270
R120
R101
NC
R115
NC
0
R114
+3.3V
Q21
1
E1
2
B1
3
C2
4
E2
5
B2
6
C1
+3.3V
0
R122
D14
A
K
D13
A
K
D9
AK
NC
R132
R118
NC
180
R106
C158
NC
SP-
SP+
10u
C27
100k
R23
47k
*R24
+2.5V
*C25
0.047
390k
R141
47k
R134
27k
R18
8.2k
R19
100k
R27
470k
R28
C24
NC
100k
R82
C14
0
RA1
1
2
3
4
5
6
7
8
C159
NC
+1.8V
1
GND1
2
ANT2
3
VCCPA
4
GND2
5
GND3
6
VDD_ANA
7
VDD_DIG
8
GND4
9
SYRI
10
GND5
11
GND6
12
SYEN
13
SYDA
14
SYCL
15
GND7
16
RXDA
17
GND8
18
TXDA
19
GND9
20
*RESET
21
ANT1
22
GND10
23
GND13
24
GND12
25
TXPO-SET
26
GND14
27
GND15
28
GND16
29
GND17
30
GND18
31
A_1
32
GND11
R142 NC
R143
NC
R144
NC
+2.5V
+2.5V
C23
220n
C51
C80
C81
C82
C83
C85
C89
NC
C88
NC
C90
C111
NC
C114
NC
C116
NC
C129
NC
C132
NC
C144
NC
NC
C155
C113
NC
C115
NC
C131
NC
C119
NC
C121
NC
C130
NC
150p
C126
1n
C127
C133
C141 220n
C161
NC
4.7u
C109
1n
C92
1n
C93
1n
C94
1n
C95
C103
10p
1n
C142
C160
C106
10p
C145
NC
C146
NC
100p
C91
NC
C104
NC
C148
NC
C147
L21
22p
1.5n
L7
C162
1
R125
C124
7p
7p
C117
470
*R30
820
*R31
2.2k
*R20
C163
NC
100
R116
330
R111
Q10 NC
B
E
C
LOW_RAD
270
R119
C112
22p
10p
C110
390p
C128
C108
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
120
R29
Q24
NC
B
C
E
Q5
Q25
100
R131
1
SI
2
SCK
3
*RESET
4
*CS
5
*WP
6
VCC
7
GND
8
SO
SK
TDO
RESET
LE
TAMIC_CSn
SPICLK
SPIDI
SPIDO
MESSAGE
TAM_RSTn
SPICLK
SPIDO
SPIDO
TAM_CSn
SPIDI
KEY0
KEY1
TAM_RSTn
ROW2
ROW1
ROW1
TAM_CLK
RDI
SIO
ANSWER_ON
WP
TAM_RSTn
WP
ROW0
RFCLK
LOW_RAD
for TG7220/8220
Flat-cable
for TG7200/8200
C96 : 10p
*C15
1u
IC8
RF UNIT
IC10
IC11
Flash memory
EEPROM
*IC5
(1)
(2)
(3)
(4)
(5)
(8)
(9)
(11)
(10)
(6)
(7)
NC: No Components
75
KX-TG8225RU/KX-TG8226RU/KX-TGA820RU
Charge Current
Bell signal
RX_AF
TX_AF
Caller ID,
Bell Signal
Bell Signal
Loop Current
0 V
0.65 V
TX DATA
RX DATA
300 mV p-p
1.8 V
2.5 V
3.3 V
L2R
J1
NC
J2
NC
L1
33u
L2
33u
680p
C9
680p
C10
D3
4
1
3
2
*R123
NC
100k
R14
2.7k
R15
LINE_DC
SA1
CLK
R1
10k
1.5n
C3
1M
R4
C5
1n
1.5n
C4
1M
R6
R5
180k
C6
1n
*R7
5.6M
100k
R8
+2.5V
*R9
5.6M
100k
R10
1
*INT1/P11
2
VDDIO1
3
VDD1
4
VSS1
5
SDA1/P25
6
SCL1/P24
7
*INT5/VDDE/P15
8
*INT2/P12
9
AVD
10
AVS
11
CAP
12
Xtal1
13
VSSRF
14
RFCLKp
15
RSSI/RFCLKm
16
VDDRF
17
RFCLKd
18
TDO
19
RDI
20
SK
21
PD1/SIO
22
LE
23
P31/PD1
24
P32/PD2
25
P33/PD3
26
P34/PD4
27
TDOD/P35/PD5
28
P36/PD6
29
VSS2
30
VDDIO2
31
VDD2
32
PCM_FSC/*INT0/P10
33
P00/UTX
34
P01/URX
35
P02/JTIO
36
P03/SDA2
37
P04/SCL2
38
P05/SPICLK/PCM_CLK
39
P06/SPIDO/PCM_DOUT
40
P07/SPIDI/PCM_DIN
41
VSS3
42
VDD3
43
P23/ADC1
44
P17/CHARGE/INT7
45
*RST
46
VBAT1
47
LDO1_CTRL
48
LDO2_CTRL
49
LDO1_
Sense
50
AVS2
51
AVD2
52
*CIDIN
53
*LSR/REF
54
LSRp/REF
55
RINGING
56
*MIC/CIDOUT
57
VREFm
58
AGND
59
MICp
60
CIDINp
61
P14/*INT4
62
P13/*INT3
63
ADC2
64
ADC0
J101
J104
J103
J102
R76
1
k
R813.3k
100n
C56
+1.8V
15
R72
VDD1
+2.5V
VDD2
VDD3
+3.3V
120
R38
200
R39
4
Fin
1
ADJ/GND
3
Input
2
Output
+8.0V
DCM
1k
R79
1k
R80
L2T
L1T
L1R
CN2
2
1
NC
C30
1u
C70
SA2
NC
3.3M
R73
C2
NC
100
R75
TP23
10k
R74
TP9
TP_RLY1
L1T/TP_RLY2
L2T/TP_RLY3
L2T/TP_RLY3
L1R/TP_RLY4
TP_RLY5
10k
R77
10k
R78
C37
NC
3.3k
R71
3.3k
R117
1k
R33
0
R97
R3
180k
*C12
1u
C31
J11
NC
NC
SA11
2
1
NC
SA12
2
1
NC
D2
A K
*D5
A
K
*D6
A K
D21
N
C
A K
R126
NC
NC
NC
R128
+2.5V
10k
R129
1k
R130
TP16
TP15
330u
C36
6.3
C32
100u
16
16
10u
C71
10u
C64
16
NC
SW1
1 2
R138
NC
0
R140
NC
C7
NC
C8
NC
R139
NC
PCM_FSC
PCM_CLK
PCM_DOUT
PCM_DIN
DCP
10k
R16
2.2k
*R17
100k
R32
100k
R34
1k
R35
220p
C52
220p
C53
0
L22
C1
10p
C48
NC
C54
10n
C55
C57
NC
C59
C60
C61
C65
C73
C74
C75
C68
NC
C69
10p
C136
10p
C137
220n
C72
C156
NC
1n
C157
1n
C96
X1
1
3
2
L9
390
C67
TP16-sub
TP15-sub
3.9
R55
3.9
R56
3.3
R57
CHARGE
US1
*R124
10
*R13
680
*R12
10k
*R36
150k
Q8
Q9
B
E
C
R148 NC
12
R133
C62
22p
RH1
P1
0
3
F1
C63
10p
C164
10p
C165
Q3
Q1
NC
D23
D26
NC
A K
NC
D24
A K
NC
D25
A K
D1
D4
D12
NC
D15
D22
*Q2
Q4
Q22
NC
Q23
NC
D16
NC
CN1
1
2
3
4
2
3
4
5
R2
NC
*C166
1u
TAM_CSn
TAMIC_CSn
SPIDI
SPIDO
SPICLK
TAMIC_CSn
ROW0
RESET
LE
SIO
SK
RDI
TDO
RFCLK
LOW_RAD
TAM_CLK
ROW1
ROW2
KEY0
KEY1
WP
ROW0
Charge +
Charge -
DC_IN
GND
JTAG
RX
TX
for NL
for JT
for TG7200/8200
for BR
for BR
IC1
IC7
BBIC
(1)
(2)
(3)
(4)
(5)
(8)
(9)
(11)
(10)
(6)
(7)
NC: No Components
KX-TG8225/8226RU
SCHEMATIC DIAGRAM (Base Unit_Main)
76
KX-TG8225RU/KX-TG8226RU/KX-TGA820RU
12.3. Schematic Diagram (Base Unit_Operation)
C
C
LED2
1
2
LED1
1
2
SKIP
1
2
VOL_UP
1
2
STOP
1
2
ANS_ON
1
2
ERASE
1
2
REPEAT
1
2
VOL_DOWN
1
2
LOCATOR
1
2
PLAY1
1
2
PLAY
1
2
CN10-10
CN10-9
CN10-8
CN10-7
CN10-6
CN10-5
CN10-4
CN10-3
CN10-2
CN10-1
ANSWER ON
PLAY
KX-
TG8225/8226
SCHEMATIC DIAGRAM (Base Unit_Operation)
Click on the first or last page to see other KX-TG8225RUB / KX-TG8225RUJ / KX-TG8225RUM / KX-TG8225RUR / KX-TG8225RUW / KX-TG8226RUB / KX-TG8226RUJ / KX-TG8226RUM / KX-TGA820RUB / KX-TGA820RUJ / KX-TGA820RUM / KX-TGA820RUR / KX-TGA820RUW service manuals if exist.