Panasonic KX-TG2873BXS

72
KX-TG2873BXS/KX-TGA280BXS
13.3. Schematic Diagram (Base Unit_Operation)
CN4
1 2
RFG
SW5
SW20
SW7
SW2
SW12
SW11
SW14
SW10
SW22
SW9
SW15
SW27
SW23
SW3
SW13
SW1
SW17
SW16
SW4
SW8
SW28SW26
SW18
SW24SW25
SW19
SW21
SW6
LED1
TP2
DG
TP3
TP5
DG
K0.1u
C1
+5.5V
DG
Z0.1u
C2
DG
+VDD
+VDD
+5.5V
+5.5V
DG
F10K
R7
F10K
R6
F10K
R5
CN1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
0
R105
0
R100
TP4
0
R102
0R104
0
R101
0
R103
CN2
1
2
3
4
5
6
7
8
9
330 R2
1.5K R3
COL3
ROW5
COL1
ROW0
ROW2
ROW4
COL4
ROW1
ROW3
COL0
ROW4
ROW0
COL1
COL0
COL3
ANSL
ROW3
ROW1
ROW5
COL4
COL2
BL_ON
LCD_START
LCD_CLK
LCD_START
LCD_INH
LCD_TXD
COL2
ROW2
LCD_INH
LCD_CLK
LCD_TXD
TO LCD UNIT
To MAIN PCB
ROW3
0
COL2
KX-TG2873 SCHEMATIC DIAGRAM (Base Unit_Operation)
NC: No Components
SP-PHONE
1
COL1
ONE-TOUCH2
3
ROW4
COL3
FLASH/
ERASE
7
ROW2
IN/OUT
2WAY-REC
PLAYBACK
COL0
SET
ROW1
6
MUTE
VOICE
SELECT
8
9
ONE-TOUCH1
INTERCOM
ROW0
4
52
COL4
REDIAL/
PAUSE
HOLD
ROW5
N.C
N.C
3V
3V
ANT_B
TO MAIN BOARD