Key Pcb - Samsung PL120 Service Manual

9. Schematic Diagrams

9.11. KEY PCB

3_3VCC_MAIN
R1
15KOHM
5%
R2
3.9KOHM
5%
E1
ICVN0518X400FR
R3
6.2KOHM
5%
AGND
R4
11KOHM
5%
R5
33KOHM
5%
9-11
KEY_IN1
S W1
DOME_P AD_S W
1 2
NC_E1
C1
NC_VARIS TOR
S W2
100NF
DOME_P AD_S W
16V 10%
1 2
S W3
DOME_P AD_S W
1 2
S W4
DOME_P AD_S W
1 2
S W5
DOME_P AD_S W
1 2
AGND
3_3VCC_MAIN
LED1
R6
150OHM
5%
FUNC_LED
3_3VCC_MAIN
R7
15KOHM
5%
S W8
DOME_P AD_S W
1 2
MENU
R8
NC_E2
3.9KOHM
NC_VARIS TOR
S W_9
5%
DOME_P AD_S W
1 2
E2
ICVN0518X400FR
R9
6.2KOHM
5%
S W_10
DOME_P AD_S W
1 2
AGND
AGND
S W9
DOME_P AD_S W
2 1
P LAY_KEY
P LAY
C2
1000nF/10%
16V
AGND
KEY_IN0
J 1
3_3VCC_KA 3_3VCC_MAIN
51281-1094
1 2
1 2
C3 3 4
3 4
100NF 5 6
KEY_IN0 5 6
16V
7 8
7 8
9 10
KEY_TELE 9 10
11
11
12
12
C4
100NF
16V 10%
AGND AGND AGND
S W6
DOME_P AD_S W
1 2
KEY_WIDE
S W7
DOME_P AD_S W
1 2
KEY_TELE
3_3VCC_KA
HOLE1 HOLE2
TP TP
AGND
Copyright© 1995-2011 SAMSUNG. All rights reserved.
FUNC_LED
KEY_IN1
P LAY_KEY
KEY_WIDE
AGND