Lcd Display Trouble - LG MG220 Service Manual

4.7 LCD Display Trouble

FPCB 40Pin & LCD Connect
Check
LCD Control Signals From Main Board
• MLED , L_MAIN_CS, L_SUB_CS ,LCD_RESET, L_WR, LCD_ID
• L_A(1), L_D(0)~L_D(15), IFMODE
Check Points
• The Assembly status of the LCD Module.
• The Soldering of connectors
• The FPCB which connects the LCD module with the main board.
• BackEND IC Soldering
Trouble Shooting Setup
• Connect PIF, and power on
Check soldering
around connector
BackEND IC
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4. TROUBLE SHOOTING
LCD CONNECTOR