Schematic Diagram (Handset_Main) - Panasonic KX-TGP500B04 Service Manual

KX-TGP500B04/KX-TPA50B04

14.6. Schematic Diagram (Handset_Main)

RF circuit
RXI TXO BCLK
BCLK
TX_DATA
TX_DATA
SLOT_CTRL
SLOT_CTRL
RX_DATA
RX_DATA
DVCC
RADIO_EN
RF_RSTN
RF_RSTN
SYN_DATA
SYN_DATA
NC C519
SYN_EN
SYN_EN
SYN_CLK
SYN_CLK
SYN_OUT
SYN_OUT
V_PA
IC741
V_RF
2.7V
RF_POWER
NC
4 3
ON/OFF
VSS
2
VOUT
5 VIN 1
R741
NC
ANT1
ANT1
ANT2
ANT2
*
SW1
1 2
8
RIGHT
UP 4
1
0
COMMON
CENTER 5
2
1 2
LEFT
6 DOWN
3
SYA
7
1 2
GND_0
3.1V
3.1V
RA552
RA551
470
470
Q561
Q562
KEY_BACKLIGHT BELL_LED
(Amber) (Amber)
NC: No Components
R540 NC
RF control line
2.7V
C547 100u
R545
100
R548
1 8
SI SO
100
2 7
SCK GND
C546
3 6
*RESET VCC
4 5 0.1u
*CS *WP
IC546
For Flash Boot
V_BAT1
R544 100
3.1V
R742
NC
TX_EN
LEFT TALK SP
1 2 1 2 1 2
KIN_5
7 4 1
1 2 1 2 1 2
KIN_4
8 5 2
1 2 1 2 1 2
KIN_3
9 6 3
TE
1 2 1 2 1 2
KIN_2
RIGHT OFF FLASH
1 2 1 2 1 2
KIN_1
5.0V 3.1V 5.0V
5.0V 3.1V 5.0V
R560
NC
1 6
VOUT C+
2 5
GND VIN
W_LED+1
3 4
*SHDN C-
W_LED+2
W_LED-
IC561
5.0V
Charge pump for
White_LED
LCD back light
LCD_BACKLIGHT
C540 K0.1
26
RADIO_EN
27
HEAD_DET
28
GND6
29
VCC1
SYN_EN
30
SYN_EN
SYN_CLK
31
SYN_CLK
SYN_DATA
32
SYN_DATA
33
NC
34
TX_EN
35
KEY_B_LED
RX_DATA
36
RX_DATA
37
NC
38
CHG_DET
39
NC
40
LCD_BACK_LIGHT
41
NC
42
CHG_CTL
43
NC
44
NC
45
NC
SCL
46
DB6(SCL)
SID
47
DB7(SID)
48
GND7
49
VCC2
50
RESET
RESET
20ms
CI
Power ON (Reset)
2.7V
C568
NC
C566
NC
OTP
108
RST
X501
C515
13.824MHz
K0.1
R501
C514
1M
10uF
6.3V
100
SPPN
99
VCC4(VCCPA)
98
SPN
97
SPP1
96
IBAT2
95
HSM
94
VCCA
93
GND10(GNDA)
92
MICBIAS
91
MIM
90
MIP
IC501
89
VREF
88
IBAT1
87
PDN
86
GND9
85
EEPROM_WP
84
UART_RX
83
UART_TX
82
EEPROM_DATA
81
EEPROM_CLK
80
FB2
79
FB1
78
KIN_5
77
KIN_4
76
KIN_3
TCK
TMS
TDI
TDO
RA501
4.7k
2.7V
C575
IC541
K1.0
R578
1 8
A0 VCC
NC
2 7
C578
A1 WP
3 6
K1.0
A2 SCL
4 5
VSS SDA
NC
Parameter saving EEPROM
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33)
(34)