Panasonic KX-TG8286RUT / KX-TGA828RUT Service Manual ▷ View online
85
KX-TG8286RUT/KX-TGA828RUT
Memo
86
KX-TG8286RUT/KX-TGA828RUT
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
1
3
2
D7
Q4
1
2
Q9
1
3
2
10k
R6
Q5
2
3
1
D6
12
220k
R7
+2.5V
+1.8V
4.7
R12
X1
1
2
3
5.6M
R19
INT
12
CANCEL
12
SOFT_A
12
SOFT_C
12
R
12
UTX
URX
GND
C94
NC
1k
R66
10k
R64
+2.5V
+2.5V
10
R91
POWER
K1u
C39
TP20
TP21
BAT
UP
12
DO
WN
12
RIGHT
12
LEFT
12
47
R71
R70 NC
K1u
C29
Q12
1
3
2
+4.2V
BATTERY
+1.8V
SOFT_B
12
SP
12
J15p
C7
C8
K0.22u
C9
NC
K0.1u
C25
K0.1u
C26
7
12
4
12
T
ALK
12
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
12
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
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
10k
R109
L7
59
LDO1_CTRL
61
P16/PON/
INT6
63
LDO1_sense
65
A
VD2
67
LSRp/REF
69
VREFm
71
A
GND
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
P
A
OUTm
32
P
A
OUTp
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/ST
OP_CHARGE
64
A
VS2
66
*LSR/REF
68
*MIC
70
VB
UF
72
MICp
1
*INT1/P11
3
VDD1
74
P30
5
LED1/PWM0/P20
76
P13/*INT3
7
LED3
78
A
VS_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
VSSP
A1
31
VDDP
A
33
VSSP
A2
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
DC_I
A
VS_sense
ADC3
ST
OP_CHARGE
UTX
URX
JTAG
RO
W
0
COL5
COL4
COL3
COL2
COL1
LE
SIO
SK
RDI
TD0
ADC3
A
VS_sense
LCD_RESET
RO
W
3
KEY_LED
ST
OP_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
RO
W
0
RO
W
1
RO
W
3
CHARGE
LCD_BACK
LCD_BA
CK
COL5
COL4
RO
W
2
DC_CTRL
RESET
LCD_SDA
LCD_SCL
RINGER_LED
HEADSET_DET
RFCLK
LDO1_CTRL
LDO2_CTRL
LCD_SD
A
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
87
KX-TG8286RUT/KX-TGA828RUT
Sp-phone RX
Beep
Beep
1.5V DC supply to Mic
TX-AF
RX-AF
(Handset)
(Handset)
TX DATA
RX DATA
10.368MHz
2.5V
0V
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
R53
NC
1k
R52
J150p
C53
K1000p
C52
BATTERY
+2.5V
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
10k
R41
10k
R40
100k
R42
Q10
2
3
1
Q11
2
3
1
+2.5V
J100p
C37
REV_TEST1
REV_TEST2
SP_TEST1
SP_TEST2
ANT1
TP22
TP23
CLK
C72
NC
CN4
1
4
2
3
5
Z10u
C86
K0.1u
C11
MIC
1
2
C59
NC
C62
NC
D4
AK
D5
AK
K4.7u
C60
K4.7u
C61
33
R21
R34
NC
2.2k
R25
10k
R44
680k
R43
R35
NC
33
R22
D10p
C50
NC
C14
NC
C51
NC
C54
NC
C55
NC
C56
NC
C70
NC
C71
NC
C81
D10p
C85
470
R23
3.3k
R24
10p
C98
1k
R31
470p
C82
D10p
C83
100k
R32
NC
C80
ANT
1k
L8
1k
L12
NC
C100
10p
C101
10p
C102
330p
C99
100k
R33
39p
C57
1n
C58
1n
C112
1n
C108
NC
C109
NC
C111
1n
C113
1u
C12
L9
100
R93
C95
NC
10p
C115
330p
C110
0
L10
68
R51
33
R94
1.5p
C66
RESET
SIO
SK
LE
RSSI
TD0
RDI
HEADSET_DET
RFCLK
KX-TGA828 SCHEMATIC DIAGRAM (Handset)
NC: No Components
IC3
EEPROM
IC4
(1)
(2)
(3)
(4)
(5)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
88
KX-TG8286RUT/KX-TGA828RUT
12.5. Schematic Diagram (Charger Unit)
TP3
G
J1
2
1
TP4
TP2
TP1
10
R1
10
R3
12
R2
12
R4
SCHEMATIC DIAGRAM (Charger Unit)
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