3. TROUBLE SHOOTING
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START
Check the LCD Connector and reconnect
Press Power-key to turn the Power on
Change the LCD
LCD display OK?
is the Main PCB powered?
Check the MT6582/MT6323 outputs
RESET(TP1) MCLK(TP2)
LCD display OK?
Check the BL Booster IC output
OVP(TP5)
Check the DSV IC outputs
DDVDH(TP3) DDVDL(TP4)
Check the EMI Filter signals
CLK(TP6) DATA(TP7,TP8)
Change the main PCB
END
Follow the Power ON
Trouble-shooting
END
Change the BL Booster IC
Change the DSV IC
Change the EMI Filter
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
3. 12 Main LCD Trouble Shooting
Main LCD control signals are generated by theMT6582.
The path of signalsis :MT6582 ->LCD Module