LG ML012ATR free download

File name ML012ATR.pdf

TROUBLESHOOTING 1. General Features No. Symptom Cause Check Point 1 Soft touch doesn't Defective speaker wire 1) Make some space between the speaker wire and function properly and inverter wire the Soft touch Board by sticking the speaker wire to the guide hole of the cabinet. 2) Arrange working state of A1. correct working state of the Shield case. 2 Soft touch doesn't 1) Broken components and 1) Check Soft touch with eyes function soldering of them Check and repair soldering 2) P2 connector error 2) Check and repair the P2 connector 3 No screen Input error of inverter connector 1) Bend the pin legs of P1 connector -> recheck them 2) Check and repair the IC804,805 SI4925 P502 and Pin 21 connector 1) Check and fix P902 connector being slipped out 2) Check and fix the components at P902 LCD module and at main board. 3) Check Pin21. Cracked components and 1) Check and repair tuner board and main board soldering at tuner board 2) Solder Q101,102. 4 Dark screen 1) Defective LCD lamp 1) Replace the inverter 2) Defective inverter 2) Replace the LCD lamp 3) Input error of inverter connector 2) Check the connector input. 2. PC Mode No. Symptom Cause Check Point 5 Screen noise Clock or phase being 1) Resettig is needed according to the video card of each not able to be adjusted PC 2) Horizontal noise : adjust phase until no horizontal noise occurres 3) Vertical noise : adjust clock in menu until no vertical noise occurres 6 Screen position error Screen position