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華
碩
電
腦
華
碩
電
腦
Connect to the battery connector positive and negative of the
handset.
2. Press the POWER ON Key to power on the handset.
3. Press camera function key to enter the 2M camera preview
mode.
11.1.2 Repair method
1.
Check if the U23 and 2M camera connector (CON8) are
placed inversely, soldered poorly, damage or short.
2.
Measure if the voltage VDD_2M_1V8=1.8V,
VAA_CAM_2V8=2.8V, VDD_CAM_2V8=2.8V and
VACT_2V8=2.8V are normal.
3.
Check if the 2M camera FPC and the keypad FPC are
impaired.
4.
If the above cases are not found, change the 2M camera.
11.2 VGA camera
[2]
I2C_SDA
[2]
I2C_SCL
[2]
VGA_nRESET
1
R607
2
VDD_CAM_2V8
100KOhm
1
C614
$0.1UF/10V
2
GND
[2]
CIF_DD1
VAA_CAM_2V8
VDD_CAM_2V8
VGA_SDA
2
1
VGA_SCL
R603
2
0Ohm
1
R605
0Ohm
CAM_LV
CAM_PCLK
C619
C620
1
1
27P/50V
27P/50V
2
2
CAM_FV
GND
GND
VSS_CCA
VGA CAMERA circuit (1)
33
TSD ■ Lv3Lv4 Repair Manual
GND
CON7
2
FPC_CON_21P
2
21
21
1
20
19
20
19
D
18
17
N
18
17
16
G
15
16
15
14
13
14
13
12
11
12
11
10
9
10
9
8
7
8
7
6
5
6
5
4
3
VGA_MCLK
4
3
2
1
2
2
1
D
N
G
3
2
GND
GND
CIF_DD0 [2]
CIF_DD2 [2]
CIF_DD3 [2]
CIF_DD4 [2]
CIF_DD5 [2]
CIF_DD6 [2]
CIF_DD7 [2]
VGA_MCLK_STBY [2]
1
2
VDD_CAM_2V8
R619
100KOhm
Che ck this value
during s ys te m
re s e t.
ASUS Proprietary
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