LG C3400 Service Manual page 39

3. TECHNICAL BRIEF
CL761S is using 2V85_VCAM power and camera module is using 2V85_VCAM via transistor.
CL761S controls transistor. If control signal is high, camera power is off. Otherwise camera
power is on.
CAMERA CTL IC
A6 L_DA17
A5 L_DA16
J2
L_SUB_LCD_CS
K2
L_DATA00
G3 L_DA1
L_DATA01
H3
L_DATA02
J3 L_DA3
L_DATA03
K3 L_DA4
L_DATA04
H4
L_DATA05
K4 L_DA6
L_DATA06
J4
L_DATA07
K5 L_DA8
L_DATA08
J5
L_DATA09
J6 L_DA10
L_DATA10
K6
L_DATA11
K7 L_DA12
L_DATA12
J7
L_DATA13
K8
L_DATA14
J8
L_DATA15
A4
LCD_RD
B3 L_WR_N
LCD_WR
A3
LCD_RS
A2 L_CS_N
L_MAIN_LCD_CS
A1
H8
H9
C407
1u
Camera interface signal
2V85_VCAM
LS_CS_N
L_DA0
L_DA2
L_DA5
L_DA7
U401
L_DA9
L_DA11 CL761S
L_DA13
L_DA14
L_DA15
L_RD_N
L_ADS
L_RESET_N
VREF1
VREF2
Figure 3-26. CL761S BLOCK DIAGRAM
C_PWDN
HIGH
LOW
2V85_VCAM
E4
VDDS
VDDI1 D6
C403
C414 C415
E6
VDDI2
1u 1u
F6 0.01u
VDDI3
VDDI4 G6
F5
VDDL
D5
VDDC1
E5
VDDC2
F4
VDDC3
G5
VDDC4
C5
GNDI1
C6
GNDI2
D7
GNDI3
D4
GNDS
E7
GNDC1
F7
GNDC2
G4
GNDC3
H5
GNDC4
H6
GNDC5
C9
26MHz
MSM_CLK_XIN
C10
XOUT
- 38 -
Camera power
STATUS
DEACTIVE
ACTIVE
Q400
D
SI1305
G
S
2V85_VCAM
C416 C402
1u 1u
VBAT
IN OUT
3 4
PGND NC
7 5
GND
2
RPWRON
EN BYP
1 6
U404 MIC5252-2.8BML
C420
1u
2V8_C_PWR
C401
C400
10u 27p
2V85_VCAM
C421 C422
1u 1u