LG 42PC3RA Series, Service Manual

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5) Double click the download file low, then “edit” window will be
opened.
(6) Click the choice button in the “edit window”, then “file choice
window” will be opened.
(7) Choose the Hex file in folder and execute downloading with
click “ open” button.
(8) Click OK button at the “edit window”.
(9) Under Downloading process.
(10) If download is failed, for example “No acknowledge from
slave”, Execute download again from(1).
4-2. Download Method 2 (AV Plate Ass’y)
(1) Push S/W ‘ON” (connect SCL to GND using switch at Jig )
and connect the download jig to D-sub jack.
(2) Supply the power (Stand-by 5V) and wait for 3 seconds.