Schematic Diagram (Handset_Main) - Panasonic KX-TG5431BXS Service Manual

KX-TG5431BXS / KX-TGA542BXS

38 SCHEMATIC DIAGRAM (HANDSET_MAIN)

to RF PART
OSC_IN
RSSI
TX_DATA
PA_CONT
RX_EN
TX_EN
RX_GAIN
RX_DATA
CON_EN
SYN_LE2
RADIO_EN
SHCTRL
RF_RESET
SYN_DATA
SYN_LE1
SYN_CLK
SYN_OUT
VPA
V_RF
GND
VRF
C261
NC
Q263
LED261
Amber_Red_Yellowgreen
ANT-LED
NC: No Components
BACK FLASH
DOWN
MENU
IC381
UP
3.3V REG
2 1
IN OUT
GND
NEXT HOLD
3
LIGHTED KEY LCD-Light
Amber Amber
C246 K0.1
IC249
NC
1 8
SI SO
2 7
SCK GND
3 6
RESET VCC
4 5
CS WP
FLASH_BOOT
LEFT TALK SP
* 7 4 1
0 8 5 2
SYA 9 6 3
RIGHT OFF MUTE
116
RA201
4.7K
1 2
3 4
R249 NC
5 6
7 8
TEST
R272 430K(1%)
LCD
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
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