Key - Samsung HW-C450 Service Manual

Schematic Diagram

7-2 KEY

POWER
ST5V
CN1
MGND1
1
2
3
4
5
6
7
7-2
ST5V
KEY_SCL
1/16W
KEY_SDA
10KOHM
R11
KEY_RST
KEY_TEST
KEY_RST
R13
S-MODE
DGND
R15
VOL+
R17
VOL-
R19
IN-MODE
R20
POWER
KEY_SDA
KEY_SCL
KEY_TEST
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ST5V
CLOSE TO IC
C2
100NF
R5
R6
R7
C3
100NF
DGND
560OHM
IC1
1
TS01
560OHM
2
TS02
560OHM
3
TS03
560OHM
4
TS04
560OHM
5
MGND1
TS05
6
RXD
7
TS06
8
TS07
9
TS08
10 DGND
TS09
ST5V
R9
10KOHM
100OHM
R1
1/16W
R2
100OHM
1/16W
R3
10KOHM
1/16W
DGND
ST5V
249KOHM
CLOSE TO IC
160KOHM
F GRADE
160KOHM
DGND
CHANGE CODE NO
100OHM
30
R16
TS13
29
TS14
28
TS15
27
R14
100OHM
TS16
26
TS17
25
TXD
100OHM
24
R12
TS18
23
TS19
22
TS20
21
100OHM
TS21 R10
R18
100OHM
R8
100OHM
DGND
DGND
ST5V
PLY1
OP5
STP1
OP4
RSK1
OP3
FUN1
OP2
FSP1
OP6
OP1
OP7
ST_BY LED
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