LG HB620 - Page 96

LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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Check the main Board
I2C_SCL(R213), I2C_SDA(R214),CAM_SYSCLK(R502),
CAM_PCLK(# 61 CN502), M_CAM_RESET_n(# 9 CN502),
CAM_VSYNC(FB501), CAM_HSYNC(FB502
CAM_DATA[ 0] ~ [ 7](FL506,FL507)
Check the LCD FPCB
I2C_SCL(# 17 CN105), I2C_SDA(# 16 CN105),
CAM_SYSCLK(# 2 CN105),
CAM_PCLK(C951), V_CAM_RESET_n(VA109),
CAM_VSYNC(# 13CN105), CAM_HSYNC(# 14 CN105
CAM_DATA[ 0] ~ [ 7] (# 5~ # 12 CN105)
Camera is OK?
Check the camera connector and
reconnect the camera(LCD FPCB)
N
O
End
Yes
VGA START
Yes
Yes
Chec k the LCD FPCB
VREG_CAM_AVDD_2 . 9V( C1 0 7 )
VCAM_1. 8V( C106 )
Change the Main Board
NO
Change the LCD FPC
C
B
NO
Camera is OK?
Ye
s
End
NO
YE
S
Change the CAMER
A
Camera is OK?
N
O
Yes
Check the main Board
I2C_SCL(R213), I2C_SDA(R214),CAM_SYSCLK(R502),
CAM_PCLK(# 61 CN502), M_CAM_RESET_n(# 9 CN502),
CAM_VSYNC(FB501), CAM_HSYNC(FB502
CAM_DATA[ 0] ~ [ 7](FL506,FL507)
Check the LCD FPCB
I2C_SCL(# 17 CN105), I2C_SDA(# 16 CN105),
CAM_SYSCLK(# 2 CN105),
CAM_PCLK(C951), V_CAM_RESET_n(VA109),
CAM_VSYNC(# 13CN105), CAM_HSYNC(# 14 CN105
CAM_DATA[ 0] ~ [ 7] (# 5~ # 12 CN105)
Camera is OK?
Check the camera connector and
reconnect the camera(LCD FPCB)
N
O
End
Yes
VGA START
Yes
Yes
Chec k the LCD FPCB
VREG_CAM_AVDD_2 . 9V( C1 0 7 )
VCAM_1. 8V( C106 )
Change the Main Board
NO
Change the LCD FPC
C
B
NO
Camera is OK?
Ye
s
End
NO
YE
S
Change the CAMER
A
Camera is OK?
N
O
Yes
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