Samsung SGH-P408 Service Manual page 28

SG H- P408 F low Chart of Troubleshooting
AFC
C806
10N F
KEY_COL(4:0 )
KEY_COL(4)
KEY_COL(3)
KEY_COL(2)
KEY_COL(1)
KEY_COL(0)
SEN D CLEA R
KEY-XBS KEY-XBS
KEY_ROW(4:0)
12 12
KEY_ROW(0)
1 2
KEY-XBS KEY-XBS
12 12
KEY_ROW(1)
4 5
KEY-XBS KEY-XBS
12 12
KEY_ROW(2)
7 8
KEY-XBS KEY-XBS
12 12
KEY_ROW(3)
* 0
KEY-XBS KEY-XBS
12 12
KEY_ROW(4)
VOSC
13MHZ_BB
R80 1
10
(From SI4201)
OSC801
4
1
C804
R803
10N F
10 0
3
2
TCO-9141 B
C805
10N F
X-TAL(13MHz )
12
CAM_MENU
LS10N2-T
34 5
PWR_ON
END_PW R
KEY-XBS
12
T I
KEY-XBS KEY-XBS
12 12
12
3 45
3 UP
KEY-XB S KEY-XBS VOL_U P
LS10N2-T
12 12
12
3 45
6 DOWN
KEY-XB S KEY-XBS VOL_D N
LS10N2-T
12 12
9 LEFT F1
DD-DOM-4PIE
KEY-XB S KEY-XBS
12 12 12
SH RIGHT F2
KEY-XB S KEY-XBS KEY-XBS
12 12 12
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C801
R818
R800 15PF
0
560
R802
C802
200
30PF
C803
10N F
U802
A3212ELH-SAMSUNG
2
FLIP_SNS_ 2 OUT
GND
LED80 1 LED802 LED804 LED805 LED80 7 LED808
R806 R807 R808 R809 R810 R811
15 0 15 0 150 150 150 15 0
BACKLIGHT_1
3- 16
CLK13M_T R
CLK13M_M C
CLK13M_YMU
CLK13M_R F
VCCD
U803
A3212ELH-SAMSUNG
1
2
VC C FLIP_SN S OUT
C807
GND
100NF
3
LED810 LED811
LED813 LED814 LED819 LED820
LED82 1L
R81 2 R813 R814 R815 R81 6 R81 7 R81 9
150 150 15 0 150 150 150 15 0
R820
0
VCCD
1
VC C
C808
100N F
3
VBA T
ED822
R82 1
150
BACKLIGHT_ 2