Panasonic KX-TG3521BXB, Service Manual

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KX-TG3521BXB/KX-TG3521BXS/KX-TG3522BXB/KX-TG3522BXS/KX-TGA351BXB/KX-TGA351BXS
13.4. Schematic Diagram (Handset_Main)
10k
R534
*LED551
1
2
*LED552
1
2
*LED553
1
2
*LED554
1
2
6.3V
100uF
C381
NC R501
K0.01
C512
NC R540
1k R542
10k R541
K0.1
C504
K0.1
C596
K0.1
C515
K0.1
C541
K0.1 C540
K0.1
C386
IC541
EEPR
OM-64K
1
A0
2
A1
3
A2
4
VSS
5
SD
A
6
SCL
7
WP
8
VCC
4.7k
RA501
1 2 3 45
6 7 8
BCLK
RSSI
TX_DATA
PA_CONT
RX_EN
TX_EN
RX_GAIN
RX_DATA
SHCTRL
RF_RSTN
SYN_CLK
SYN_DATA
SYN_EN
SYN_OUT
V_PA
V_RF
GND
R573 820K (1%) R572
430K (1%)
LED556
1
2
LED555
1
2
TCK
TDI
TDO
TXO
RST
RXE TXE RXI
RS
BCLK
NC
C519
TMS
X501
13.824MHZ
0.1uF
CA574 1 2 3 45
6 7 8
LEFT
MENU
RIGHT HOLD
0.47uF
CA571
1
2 3
4
C573 K0.1
C572
K0.47
C514
10uF
6.3V
3L_DOT_LCD
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22
D10P
C502
D10P
C501
LED561
A
K
NC
C546
IC546
NC
1
SI
2
SCK
3
*RESET
4
*CS
5
*WP
6
VCC
7
GND
8
SO
NC
R547
NC
R546
120
R562
120
R563
NC
Q556
1 2 3
4 5
LED558
NC
1
2
NC
LED559
1
2
NC
LED557
1
2
NC
R564
NC
R565
NC
R566
NC
R504
10k
R503
IC382
2.5V
1 VIN
2
VSS
3
CE
5
VOUT
4
NC
IC381
3.3V
3
VOUT
1
VSS
2
VIN
BACK
1 2
DOWN
NEXT
UP
*
2
3
4
5
6
7
8
9
0
SYA
1
TALK SP
OFF PAUSE
CI
NC
C382
100
R561
TE
Q552
NC
B
E
C
*Q551
B
E
C
Q555
1 2 3
4 5
NC R574
FLASH
*RA551
1 2 3 45
6 7 8
IC501
4
RSSI
5
XIN
6
XOUT
7
VDD
8
VCCIN
9
GND
10
GND
11
GND
12
GND
13
RST
14
FL_RST
15
FL_DO
16
FL_DI
17
FL_CS
18
BL_LED
19
SYN_OUT
20
TX_D
A
T
A
21
P
A_CONT
22
SYN_LE2
29
VCC
30
SYN_LE1
31
SYN_CLK
32
SYN_DATA
33
RX_EN
34
TX_EN
35
RX_GAIN
36
RX_DATA
37
NC
38
CHG_DET
39
NC
40
NC
41
NC
42
NC
43
NC
44
DB4
45
DB5
46
DB6
47
DB7
54
NC
55
CI
56
LCD_RS
57
R
W_WR
58
E_RD
59
LCDPO
W
60
ANT_L1
61
ANT_L2
62
ANT_L3
63
STB_E
64
STB_D
65
STB_C
66
STB_B
67
STB_A
68
GND
69
VCC
70
TCK
71
TMS
72
TDI
79
FB
80
CHG_CLT
81
EE_SCL
82
EE_SDA
83
UART_TX
84
UART_RX
85
EE_WP
86
GND
87
PDN
88
IBAT1
89
VREF
90
MIP
91
MIM
92
MICBIAS
93
GND
94
VCCA
95
HSM
96
IBAT2
97
SPP
1
GND
2
SPPP
3
BCLK
23
CON_EN
24
RF_RESET
25
NC
26
SHCTRL
27
HEAD_DET
28
GND
48
GND
49
VCC
50
RESETB
51
FL_CLK
52
NC
53
NC
73
TDO
74
KIN_1
75
KIN_2
76
KIN_3
77
KIN_4
78
KIN_5
98
SPN
99
VCC
100
SPPN
STB_C STB_D
KIN_5
KIN_1
KIN_4
RF_RSTN
RSSI
SYN_OUT
RSSI
PA_CONT
RX_GAIN
SYN_DATA
SYN_EN
SYN_CLK
SHCTRL
TX_DATA
RX_EN
TX_EN
RX_DATA
KIN_2
STB_A
RESETB
LCD_RS R
W_WR
E_RD STB_D STB_C STB_B STB_A KIN_1 KIN_2 STB_E
DB7
DB6
DB5
DB4
SHCTRL
SYN_EN
SYN_CLK
SYN_DATA
RX_EN
TX_EN
RX_GAIN
RX_DATA
RESETB
SYN_OUT
TX_D
A
T
A
P
A_CONT
RF_RSTN
STB_B
KIN_3
STB_E
LCD_RS
R
W_WR
E_RD
DB7 DB6 DB5 DB4
V_PA
V_RF
Talk(GREEN)
VE(RED)
Batt(RED)
KEY_BACKLIGHT ANT_LED LCD_BACKLIGHT
(Amber) (Amber) (Amber)
RF circuit
RF control line
Flash memory for booting
Regulator for RF unit
DSP Part (control circuit)
Parameter saving EEPROM
NC: No Components
(1)
(2)
(3)
(4)
(5)
(7)
(6)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(16)
(17)
(15)
3.3 V
2.5 V
20 ms
Power ON
(Reset)