Acer B248Y - Standard Timing Table

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4. Check the FW version after upgrade.
4.1. The way to open factory menu.
(1) Connect signal source to monitor and turn it on.
(2) DC off the MNT, then pressing the hot key button and DC on, when the screen lights, release the key and press the
left botton again to open the menu with “F” and select “F” to open factory menu.
Check this
F/W version.
POWE
R
Hot
Key