Toshiba 15DV703R, Service Manual

Page: 85 / 93

78
KEY PAD SCHEMATIC DIAGRAM
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
3.3V
3.3V_2
3.3V_3
3.3V
3.3V_4
3.3V_5
3.3V
3.3V_6
3.3V
3.3V_7
3.3V
3.3V
3.3V
LBADC2
3.3V_8
3.3V
3.3V
3.3V_1
LBADC1
TV KEY BOARD
Key
POWER
INPUT
Voltage
S902 S904
Remark
U
NE
M
-
V
-
C
+
V
T
UP
NI
+
C
C- C+
V-
V+
MENU
S906 S903 S907 S905 S908
EJECT
S909
0V~1.4V 1.4V~1.9V 1.9V~3.3V 0V~1.1V 1.1V~1.55V 1.55V~2.0V 2.0V~3.3V
Normal
DVD ENTER
MENU STOP PLAY
V+ V-
PUSH : GND UNPUSH : 3.3V
C+
S905 SW-TACT-87-GP S905 SW-TACT-87-GP
1
2 4
3
5
R219 2K4R3F-GP R219 2K4R3F-GP
1 2
R204 470R3F-GP R204 470R3F-GP
1 2
CN407
JWT-CON3-2-GP
CN407
JWT-CON3-2-GP
1 2 3
R237 1K4R3F-1-GP R237 1K4R3F-1-GP
1 2
S904 SW-TACT-87-GP S904 SW-TACT-87-GP
1
2 4
3
5
R232 2K4R3F-GP R232 2K4R3F-GP
1 2
R217 820R3F-2-GP R217 820R3F-2-GP
1 2
S903 SW-TACT-87-GP S903 SW-TACT-87-GP
1
2 4
3
5
S902 SW-TACT-87-GP S902 SW-TACT-87-GP
1
2 4
3
5
S901 SW-TACT-87-GP S901 SW-TACT-87-GP
1
2 4
3
5
S908 SW-TACT-87-GP S908 SW-TACT-87-GP
1
2 4
3
5
S907 SW-TACT-87-GP S907 SW-TACT-87-GP
1
2 4
3
5
R202 470R3F-GP R202 470R3F-GP
1 2
S906 SW-TACT-87-GP S906 SW-TACT-87-GP
1
2 4
3
5
R211 820R3F-2-GP R211 820R3F-2-GP
1 2
R214 1K4R3F-1-GP R214 1K4R3F-1-GP
1 2