LG 14T90Q User Manual

OWNER’S MANUAL  
NOTEBOOK  
For the safe and convenient use of the product, please read this owner’s manual before use.  
14T90Q Series  
Copyright © 2022 LG Electronics Inc. All Rights Reserved.  
MFL71880430  
2
Checking the Components  
Checking the Components  
Product Tour  
The components shown below are provided when you purchase the product.  
Check the components before use.  
The actual product may differ in shape and color from the product images  
included in this owner’s manual.  
• Some of its components may look different in shape and color from the pictures in  
certain models.  
Front  
• When cleaning the product, use a cleaning agent dedicated to the PC. If you use  
thinner, benzene, alcohol or other similar agent, the product may be damaged or  
deformed.  
PC Main Body  
Owner’s Manual  
HDMI Adapter  
AC Adapter 1  
Power Cable 1  
Built-in Microphone  
IR LED  
Webcam Operation Status Lamp  
Webcam  
Keyboard  
LAN Adapter 2  
(Optional)  
Touchpad  
Stylus Pen  
IR Camera  
Power Button [  
]
1
2
The AC adapter and power cable may differ depending on your country, but there is  
no difference in their functionality.  
The recommended network cable for the optimal network environment is CAT5 or  
higher.  
NOTE  
• You can use hot keys to use Windows more conveniently.  
For details, refer to the LG Easy Guide of the LG PC Manuals.  
3
Using Stylus Pen  
Left  
Using Stylus Pen  
The buttons on the stylus pen work similar to those of a mouse.  
NOTE  
Right  
Back  
You need to apply some pressure to use the stylus pen.  
Depending on the application used, the button operation of the stylus pen may be  
different.  
When the stylus pen is idle for more than 10 minutes or the pen tip stays pressed  
for more than 4 minutes, the pen goes into a power saving mode in order to  
conserve battery.  
To leave the standby mode, simply touch the screen with the Stylus Pen or click  
the left or right button on the pen.  
For details on the Stylus Pen, refer to the LG Easy Guide of the LG PC Manuals.  
Headphone Port  
UFS/microSD Card Slot  
Sleep Button  
(4-pole Ear Microphone Port 1  
USB-C™ Port 2  
)
USB Port (USB 3.2 Gen 2x1 3  
)
(USB 4.0 Gen 3x2 / Thunderbolt™ /  
Can connect to a LAN adapter /  
HDMI Connectable Port / Power Port)  
Vent  
Single click  
(press once)  
Double click  
(press twice)  
Drag (moving while  
pressing down)  
Built-in Speakers  
1
The 4-pole ear microphone port supports US type 4-pole standards and the  
European 4-pole ear microphone may not work properly.  
Using Tablet PC Mode  
Unfold the notebook and rotate the LCD as shown in the picture to use it as a  
tablet PC.  
When using ear microphone (or Bluetooth headset), audio input and output are  
directed to the connected device and the microphone and speaker on PC do not work.  
The 4-pole ear microphone port does not support external microphone.  
2
3
Depending on the specifications of the device connected to the USB-C™ port, it  
acts as a USB or Thunderbolt™ port.  
The USB-C™ port provides Quick Charging and Always-On Charging functions for  
devices that support USB PD (Power Delivery).  
The names of USB versions have changed from USB 3.0 (or USB 3.1 Gen 1) and USB  
3.1 (or USB 3.1 Gen 2) to USB 3.2 Gen 1x1 and USB 3.2 Gen 2x1. Devices that are  
not authorized with USB may not operate normally when connected to the USB port.  
The transmission speed of a USB port may differ depending on the type of storage  
device (NVMe™, SSD, HDD, etc.) in the system and the connected USB device.  
4
Connecting LAN Adapter  
Power Connection  
• When packing or moving the product, close the LCD panel to  
protect it.  
CAUTION  
!
• Be careful not to pinch your fingers between the PC main  
body and the LCD panel.  
The AC adapter is used to power and charge the PC.  
Do not use any other AC adapter than the one that was provided when you  
purchased this product.  
• Do not rotate the LCD panel with excessive force. This may  
damage the hinge connecting the PC body and the LCD panel.  
The power cable and AC adapter may differ depending on your country or region.  
• In tablet PC mode, the keyboard faces the bottom of the  
product. Clean around the product to prevent the keyboard  
and PC body from being damaged.  
1
2
Connect an end of the cable to the AC adapter and  
the other end to a power outlet.  
The AC adapter can be used from 100 V to 240 V.  
NOTE  
Connect the AC adapter jack to the PC USB-C™ port.  
When rotating the product, the screen is rotated vertically or horizontally  
according to the current screen angle.  
To leave standby mode (LCD off), press the power button or sleep button.  
For details on tablet PC mode, refer to the LG Easy Guide of the LG PC Manuals.  
Ensure that the power jack linked to the AC adapter  
and product is connected firmly.  
When the AC adapter is connected, the AC adapter lamp turns on.  
Status  
White  
Power Lamp  
Connecting LAN Adapter  
When the AC adapter is connected and charging is  
complete.  
1
Connect the LAN adapter to the USB-C™ port  
on the PC.  
Orange  
Off  
When the AC adapter is connected and is charging.  
The AC adapter is not connected.  
The USB-C™ port can be used without having  
to differentiate between the top and bottom sides.  
If you try to turn on the system that has entered the Hibernates mode or been  
turned off after a low-battery alarm, the system will not be turned on but  
the lamp will blink three times. If this is the case, connect the AC adapter and  
charge the battery sufficiently before using it.  
2
3
Connect the network cable (LAN) to the LAN adapter.  
Check if you can connect to the Internet properly.  
5
System Shutdown / Power Off  
Do not use the product on  
top of carpet, blanket or bed.  
Also, do not put the adapter  
under the blanket.  
Prevent the battery from  
coming in contact with any  
metallic object like a car  
ignition key or a paper clip.  
System Shutdown / Power Off  
Press the [  
] key or [Ctrl] + [ESC] to display the Start menu.  
The product may  
Otherwise, this may cause  
damage to the battery,  
a fire or burn due to  
- Press the Start button [  
] > Power button [  
] and select [Shut down].  
malfunction, cause a fire  
or burn the user due to  
temperature rise.  
overheat in the battery.  
Important Safety Precautions  
Do not leave the powered on  
product in a space without  
enough ventilation (i.e. bags)  
repeatedly or for an extended  
time.  
Charge the battery only with  
the provided charger.  
Otherwise, the battery may  
be damaged presenting a  
risk of fire.  
Check the following ‘Important Safety Precautions’ to prevent unexpected  
danger or damage in advance.  
‘Important Safety Precautions’ is divided into ‘WARNING’ and ‘CAUTION.’  
The battery may overheat  
and cause a fire.  
WARNING: Noncompliance with the instruction may cause serious  
!
Do not excessively bend the AC adapter  
cable.  
physical damage or fatal injuries.  
Otherwise, the wires inside the cable  
may break and cause an electric shock  
or fire.  
CAUTION: Noncompliance with the instruction may cause minor damage  
!
to the body or the machine.  
While Using the Product  
Guide on Battery Usage  
WARNING  
!
When the PC is not used for  
an extended period of time,  
keep the battery level at  
about 50 % to increase the  
battery lifespan.  
Use the Extend Battery Life  
function in the LG Smart  
Assistant. You can limit  
the battery charge to 80 %  
of the maximum charging  
capacity to increase the  
battery lifespan.  
Use batteries certified and  
acknowledged by  
LG Electronics Inc.  
• Otherwise, an explosion  
or fire may occur.  
Keep the battery away from  
heat.  
• Otherwise, an explosion  
or fire may occur.  
Avoid storing or using this  
product in places with  
high humidity levels and  
temperatures above 60 °C,  
such as the inside of a car or  
sauna.  
If you find leakage or smell  
bad odor from the battery,  
contact the local service  
center.  
• Otherwise, an explosion  
or fire may occur.  
To increase battery lifespan,  
use the battery for a while  
before charging it rather  
than keeping the battery  
completely charged.  
If you don't use the product  
for a long time with the  
battery completely charged,  
the battery lifespan may  
decrease.  
• Otherwise, an explosion  
or fire may occur.  
6
Pre-Tech Support Checklist  
Symptom  
Cause and Solution  
NOTE  
• This product has a built-in battery pack. After purchasing your PC, be sure to  
charge the battery pack completely before using it for the first time.  
The screen color  
does not display  
properly.  
• Check if Reader Mode is on. When the Reader mode  
is on, turn the setting off.  
- The battery is a wearable good and thus the battery may not last as long as  
before after the battery has been used for a long time.  
- Press the Start button [  
] to turn the [All apps] >  
[LG Smart Assistant] > [Display Setting] > [Reader  
Mode] settings off.  
- The internal battery cannot arbitrarily be removed or replaced. Removing it may  
void the warranty.  
• Using the Reader mode and the Night mode at  
the same time can cause color distortion. Turn the  
Reader mode settings off or change the Night mode  
to [Off].  
- If you need to remove or replace the battery, visit a designated service center.  
- We charge a fee for removing or replacing the battery.  
Pre-Tech Support Checklist  
- Turning off Night light: Press the Start button  
[
] and select Settings [  
] > [System] >  
Troubleshooting  
[Display] > [Night light] > [Off].  
If the following symptoms appear while using the product, check again.  
It may not be a malfunction.  
• If the screen still does not properly display, contact  
the LG Electronics service center.  
- Reader mode controls the brightness and color  
of the LCD screen to look like printed paper and  
protect the user from eyestrain.  
Symptom  
Cause and Solution  
Some of the  
Windows functions  
do not work  
normally or are not  
supported.  
• Depending on the product, some of the Windows  
functions may not be supported, and you may need  
to purchase a separate hardware, driver, or software  
to use the functions. Also, you may need to update  
the BIOS additionally. The Auto Update function of  
Windows is always activated. Updating Windows  
may incur Internet usage fees as well as additional  
system requirements for the storage device or the  
hardware. For more information, refer to the website  
The power does  
not turn on.  
• Check if the power cord is connected.  
• After disconnecting the power cord and reconnecting  
it, press the power button of the product.  
Part of LG Software • The UWP app provided by LG Electronics can be  
is not installed.  
installed only through the Microsoft Store. Access  
Microsoft Store and search for the app to install it.  
For more information on the app, refer to  
LG Easy Guide of the LG PC Manuals.  
7
Pre-Tech Support Checklist  
Symptom  
Cause and Solution  
Symptom  
Cause and Solution  
The wireless  
network is not  
connected.  
• Press [Fn] + [F6] to check if the wireless network  
device is turned off.  
- Press [Fn] + [F6] to set airplane mode to [OFF].  
• Press the power button for approximately 6 seconds  
to reset the system. Once the system is reset, press  
the power button again to turn on the computer.  
- Caution: Unsaved data may be lost. Pressing the  
power button while the PC is in use may cause  
damage to the hard disk or a system error.  
• After resetting the system, run “Setup Defaults” in  
the system setup. (For more information on how to  
run “Setup Defaults”, refer to “Initializing System  
Setup” under “Setup and Upgrade” in the LG Easy  
Guide of the LG PC Manuals.)  
The system stops  
during use or does  
not properly turn  
off.  
Click the Wi-Fi [  
] icon on the right side of the  
taskbar and check if AP displays properly.  
• Every time you press [Fn] + [F6], the wireless network  
and airplane mode turns on or off.  
• You may not be able to connect to a secure wireless  
network. Ask the wireless network administrator.  
• Reinstall the wireless LAN driver.  
A certain site or  
program does not  
run.  
• Press the Start button [  
[All apps] > [Windows Tools] > [Control Panel].  
• Select [View by] > [Small icons] > [User Accounts]  
> [Change User Account Control settings] > [Never  
notify] > [OK].  
] and then select  
The touchpad is  
not functioning  
properly.  
• Press the Start button [  
[LG Smart Assistant]. Then press [Dashboard] >  
[Touchpad].  
• If the touchpad does not function properly, the  
touchpad is either in the Touchpad Off (disabled)  
state or Touchpad Auto (disabled when the mouse is  
connected) state.  
] and run [All apps] >  
- LG Electronics and Microsoft recommend using  
User Account Control.  
I want to reinstall  
the driver.  
• Press the Start button [  
] > [Apps] > [Apps & features].  
Then remove the driver to be reinstalled.  
] and then select Settings  
- For details on the touchpad settings, refer to the  
LG Easy Guide of the LG PC Manuals.  
[
You selected the  
wrong display  
language for  
Windows.  
• Refer to [Recovering the System] in LG Easy Guide  
of the LG PC Manuals to initialize the PC and set the  
language again.  
• All data will be lost during the initialization, so you  
must back up all critical data in advance.  
• Press the Start button [  
], select and run [All apps]  
> [LG Update & Recovery]. Then, use the [Required  
Updates] or [Update list] menu to reinstall the drivers.  
An error message  
appears.  
• Check if the system is infected with a virus or a  
malicious code.  
8
Appendix  
Wireless Specifications  
Appendix  
Wireless LAN  
Frequency Range  
Output Power (Max)  
Registered Trademark and Open Source Information  
(2400 – 2483.5 MHz)  
IEEE802.11 b/g/n/ax mode  
Microsoft™, MS™, WinPE™, and Windows® are the registered trademarks of  
Microsoft Corporation™.  
20 dBm EIRP max (100 mW)  
USB Type-C™ and USB-C™ are trademarks of USB Implementers forum.  
23 dBm EIRP max (200 mW)  
The Low band 5.15-5.35 GHz is  
for in-door use only.  
(5150 – 5725 MHz)  
IEEE802.11 a/n/ac/ax mode  
Thunderbolt™ and Thunderbolt™ logo are the trademarks of Intel Corporation  
in U.S.A. and/or other countries.  
Intel®AX211D2W (5745 – 5875 MHz)  
IEEE802.11 a/n/ac/ax mode  
microSD® and the microSD logo are trademarks or registered trademarks of  
SD-3C, LLC.  
13.98 dBm EIRP max (25 mW)  
23 dBm EIRP max (200 mW)  
13 dBm EIRP max (20 mW)  
Wi-Fi® is a registered trademark of Wi-Fi Alliance Corporation.  
(5925 – 6425 MHz)  
Wi-Fi 6E mode  
To obtain the source code that is contained in this product, under GPL, LGPL,  
MPL, and other open source licenses that have the obligation to disclose  
source code, and to access all referred license terms, copyright notices and  
LG Electronics will also provide open source code to you on CD-ROM for a  
charge covering the cost of performing such distribution (such as the cost of  
media, shipping, and handling) upon email request to [email protected].  
This offer is valid to anyone in receipt of this information for a period of three  
years after our last shipment of this product.  
(2400 – 2483.5 MHz)  
Bluetooth  
MEMO  
MEMO  

Wtb Float 100rl User Manual
Whirlpool Acq142xa0 User Manual
Ultra Products Ult31792 User Manual
Schumacher Sf 1012d User Manual
Schumacher Ps 1022ma User Manual
Philips 29pt9521 User Manual
JVC CA C33BK User Manual
HITACHI 57F59J User Manual
EMERSON HIGHPOINT CF205GRT01 User Manual
DELL S2719DM User Manual