Schematic Diagram (Base Unit_Main) - Panasonic KX-TG8021BXS Service Manual

KX-TG8021BXS/KX-TG8021BXT/KX-TGA800BXS/KX-TGA800BXT

13.2. Schematic Diagram (Base Unit_Main)

ANT1_TP
ANT_1
GND
CL1
GND
GND
GND
To ANT
C803
1.3p C801
7p
GND GND GND
GND
TX _RF
GND
+3.0V
CN5-10
CN5-9
CN5-8
CN5-7
*CN5
.
CN5-6
PARALLEL WIRE
CN5-5
AP1
CN5-4
CN5-3
CN5-2
CN5-1
GND
NC: No Components
GND
DA1
GND
GND
GND
GND
GND
L7
15n
C122
NC
GND
To RF output
C826
GND
1.5p
GND
+3.0V
GND
GND
TXON
R806
220
GND
GND
11
GND
GND GND 10
VCC
9
PO
8
POX
7
PSEL
6
PAON
L804
4.7n
GND
*R542 0
LED2
*R532 0
LED1
*R516 0
KEY2
ROW0
*RA501 0
ROW2
1 8
ROW1
2 7
KEY1
3 6
KEY0
4 5
GND GND GND GND
for TG7320/8320
ANT2_TP
ANT_2
CL2
GND
GND
R807
RXON
220
RX _RF
C832
RF_RXn
7p
C833
RF_RXp
7p
R631
NC
Pow_Adj
+3.0V
*Q24
C
B
E
NC
GND
GND
1
PSET
2
GND VCCS
3
PI
4
PIX
5
PRAMP
IC801
R805
GND
47
R803
PSEL
1k
R804
PON
GND
1k
3.0V
VDD4
CP_OUT1=3.0V
*R424
10k
*Q421
*R425
270k
*C423
NC
GND GND
*C422
100n
GND
1 8
*CE VDD
2 7
SO *HOLD
GND
3 6
*WP SCK
4 5
VSS SI
*IC421
GND
78
Beep
Bell signal
SPm
SPp
GND
VDD5
CLK
C60
100n
*C501
GND
GND
CHARGE
Low_Rad TAM_WP
ROW2
ROW1
R511
ROW0
KEY1
0
GND KEY0
KEY2
SPI_DI
TX _RF
SPI_DO
SPI_CLK
TXn
TAM_CSn
SCL2
SDA2
R80
TXp
R79
VDD_PADRV
URX
UTX
R75
JTAG
100
GND
GND
TAM_WP
for TG7300/8300
SPI_CLK
SPI_DO
2 1
NC
*SW1
SPI_DI
TAM_CSn
GND
*R86 3.9
(1)
*R87 3.9
(2)
GND
GND_C
GND
(3)
(4)
C616
2.5V
1u
+2.5_CP
GND
GND
NC
(5)
1k
1k
(6)
(7)
(8)
(9)