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LC-65D90U
4 After the unit startup, the power LED starts blinking within 10-20 seconds.
5 Wait until the power LED stops blinking, the unit restarts automatically, and the normal startup screen
appears (it will take 2-3 minutes).
6 SShut off the AC power to the unit (unplug the AC cord), and remove the SD card for version upgrade.
7 Now the software version upgrade is complete.
Note: When you are done with the software version upgrade, start the set, go to the top page of the adjustment
process screen and check the monitor microprocessor software version information.
3.Entering and exiting the adjustment process mode
(1) Before entering the adjustment process mode, press the "RESET" button or execute the AV position RE-
SET in the video adjustment menu.
(2) While holding down the "VOL (–)" and "INPUT" keys at a time, plug in the AC cord of the main unit to turn
on the power.
The letter " <K> " appears on the screen.
(3) Next, hold down the "VOL (–)" and "CH (Ù)" keys at a time.
(The "VOL (–)" and "CH (Ù)" keys should be pressed and held until the display appears.)
Multiple lines of blue characters appearing on the display indicate that the unit is now in the adjustment
process mode.
When you fail to enter the adjustment process mode (the display is the same as normal startup), retry the
procedure.
(4) To exit the adjustment process mode after the adjustment is done, unplug the AC cord from the outlet to
make a forced shutdown. (When the power was turned off with the remote controller, once unplug the AC
cord and plug it again. In this case, wait 10 seconds or so before plugging.)
Caution: Use due care in handling the information described here lest your users should
know how to enter the adjustment process mode. If the settings are tampered with in this
mode, unrecoverable system damage may result.
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