Camera Trouble - LG HB620 Service Manual

4.8 Camera trouble

Camera control signals are generated by MSM6280 and directly connected with Cameras.
HB620T has two cameras. The one is a 2 M Camera, the other is VGA camera.
2M START 2M START
Check the camera connector and Check the camera connector and
reconnect the camera(LCD FPCB) reconnect the camera(LCD FPCB)
Camera is OK? Camera is OK?
NO NO
Check the main Board Check the main Board
I2C_SCL(R213), I2C_SDA(R214),CAM_SYSCLK(R502), I2C_SCL(R213), I2C_SDA(R214),CAM_SYSCLK(R502),
CAM_PCLK(# 61 CN502), M_CAM_RESET_n(# 10 CN502), CAM_PCLK(# 61 CN502), M_CAM_RESET_n(# 10 CN502),
CAM_VSYNC(FB501), CAM_HSYNC(FB502 CAM_VSYNC(FB501), CAM_HSYNC(FB502
CAM_DATA[ 0] ~ [ 7] (FB506,FB507) CAM_DATA[ 0] ~ [ 7] (FB506,FB507)
NO NO
Change the Main Board Change the Main Board
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Only for training and service purposes
Yes Yes
End End
Check the LCD FPCB Check the LCD FPCB
I2C_SCL(# 23 CN104), I2C_SDA(# 22 CN104), I2C_SCL(# 23 CN104), I2C_SDA(# 22 CN104),
Yes Yes
CAM_SYSCLK(# 18 CN104), CAM_SYSCLK(# 18 CN104),
CAM_PCLK(C951), M_CAM_RESET_n(VA110), CAM_PCLK(C951), M_CAM_RESET_n(VA110),
CAM_VSYNC(# 20CN104), CAM_HSYNC(# 19 CN104 CAM_VSYNC(# 20CN104), CAM_HSYNC(# 19 CN104
CAM_DATA[ 0] ~ [ 7] (# 2~ # 9 CN104) CAM_DATA[ 0] ~ [ 7] (# 2~ # 9 CN104)
Change the LCD FPCB Change the LCD FPCB
Camera is OK? Camera is OK?
Yes Yes
End End
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4. TROUBLE SHOOTING
Yes Yes
VREG_CAM_AVDD_2.9V(C107) VREG_CAM_AVDD_2.9V(C107)
VREG_CAM_AVDD_2.8V(C955) VREG_CAM_AVDD_2.8V(C955)
VREG_CAM_AVDD_1.5V(C956) VREG_CAM_AVDD_1.5V(C956)
NO NO
Change the CAMERA Change the CAMERA
Check the LCD FPCB Check the LCD FPCB
NO NO
YES YES
NO NO
Camera is OK? Camera is OK?
Yes Yes
LGE Internal Use Only