User Guide

SAMSUNG Proprietary-Contents may change without notice
SGH-A500 Flow Chart of Troubleshooting and Circuit Diagrams
6-15
17. Key Matrix & LED Circuit Diagram
4
4
8
Changed by
C
City
Drawing Numbe r
1
of
FLIP_SENSE
Engineer
QA CH K
A
8
Time Changed
Shee t
0
3
2
ALERT_LED_O N
VOL_DOW N VOL_U P
6
Size
7
6 2
Address
3
COMPANY NAME
B
KEY_PA D
MFG ENGR CH K
MIC_PA D
9
7
user10 1:51:41 pm
Kim. H. K
Kim. H. K
2002 -09 - 30 1.9B
R&D CH K
5
TITLE :
5
REV
5
DOC CTRL CH K
Date Changed
E
D
Drawn by
1
F
SGH-A500_REV1.9B
A3
6
VBA T
LED50
3
2
3
4
5
6
CN501
10
ZD500
1
LED13
R568
ZD501
1
2
3
4
5
6
R513
180
1
3
2
LED50
8
Q502
5.6PF
LED51
6
LED50
1
C510
KEY0 7
1 2
KEY21
1 2
KEY1 1
1 2
KEY05
1 2
24
R50 1
ZD50 2
1
2
3
4
5
6
U603
BYP
4
CT L
3
2
GND
1
VI N
5
VOUT
R526
18 0
R525
180 18 0
R524
AGND
180
R521
1 2
LED14
LED50
5
KEY0 8
1 2
KEY18
1 2
NC
KEY0 1
R512
AGND
C50 4
LED50
6
18 0
LED50
4
KEY1 3
1 2
LED50
9
2
KEY14
1 2
Q506
1
3
C502
100N F
S3
R506
51K
LED50
2
220
R569
LED51
2
C503
470PF
3
GND
OUT
2
VCC
1
C501
10U F
6.3V
R531
U501
R530
180 18 0
R52 9
180
KEY0 6
1 2
2
KEY1 7
1 2
KEY0 3
1
KEY0 4
1 2
LED51
4
KEY0 9
1 2
LED51
5
R520
18 0
1 2
S1
R50 2
KEY1 0
10 K
1 2
VINT
18 0
R52 7
LED50
7
KEY12
2
KEY1 6
1 2
VBA T
2
KEY15
1
1 2
VOL_U P
3 4 5
1
LED51
3
KEY1 9
24
R503
S4
LED51
1
3
2
100
R567
2
Q503
1
R52 8
KEY0 2
1
R523
18 0
R522
24
2
KEY2 0
1 2
24
VOL_D N
3 4 5
1
S2
LED51
0
LED_CT L
MICP 1
VBA T
KP0
KP1
KP5
KP3
KP2
KP4
POWER_ON
KP6
KP7
KP9
EPP 2
FLIP_SN
KP1
KP 8
KP 6
RD_LED GR_LED BL_LED
KP8