LG F2400 Service Manual page 77

4. TROUBLE SHOOTING
Switch f or Camera
Sensor Pow er(Q400)
Pin3
• CAMERA Operation
- U404(Camera Chip) is controlled by DBB.
- The Power is supplied to U400(2.85V).
• CAMERA signal flow
- This camera signal is delivered from Camera Sensor to Camera IC(U613).
• Trouble Shooting Setup
- Enter the engineering mode.
- Go to menu "BB test -> Camera -> Preview"
• Trouble Shooting Procedure
- Check the Power Supply(2.85).
- Check the connection between connector and camera.
• Camera signals from DBB
- _LCD_CS, CAM_HOLD, CAM_INT, _WR, _RD, CAM_RST, ADD(01), ADD(01)~ADD(06),
DATA(00) ~ DATA(15).
Camera Chip
(U613)
Pow er IC for
Camera (U612)
- 78 -
Camera Sensor
Connector (CN3)
Pin11
Pin10