Acer KG251Q User Manual

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Acer Monitor KG251Q

LIFECYCLE EXTENSION

GUIDE

Table of Contents

Questions and Answers:

A
Anita TaylorJul 29, 2025
What to do if my Acer Monitor has no picture?
- V
  victoria63Jul 29, 2025
  If your Acer monitor displays no picture, there are several things you can check. First, use the OSD to adjust the brightness and contrast to the maximum or reset them to their default settings. Ensure the power switch is on and the AC power cord is properly connected to the monitor. Verify that the video signal cable is securely connected to the back of the monitor. Also, make sure that your computer system is powered on.
J
Jerry SimpsonAug 8, 2025
Why does my Acer Monitor have an abnormal picture?
- C
  Charles RogersAug 8, 2025
  An abnormal picture on your Acer monitor might be due to a mismatch between the graphics adapter and monitor specifications, causing an input signal frequency mismatch. To resolve this, check the compatibility of your graphics adapter and monitor specifications. For non-standard signals, use the OSD to adjust the RESOLUTION, CLOCK, CLOCK-PHASE, H-POSITION, and V-POSITION. If the full-screen image is missing, use the OSD to select another resolution or vertical refresh timing. After adjusting the image size, wait a few seconds before changing or disconnecting the signal cable or powering off the monitor.
J
Joshua JohnsonAug 18, 2025
How to fix abnormal sound on my Acer KG251Q Monitor?
- J
  Jessica DanielAug 18, 2025
  If you're experiencing abnormal sound on your Acer monitor (audio-input model), first check that the audio cable connecting the monitor to the host PC is properly connected. Also, verify that the volume setting on the host PC is not set to the minimum. If it is, try increasing the volume level.

Acer KG251Q Specifications

General

3D	No
Panel type	TN+Film
Screen shape	Flat
Display diagonal	24.5 \
Display technology	LED
Native aspect ratio	16:9
Maximum refresh rate	75 Hz
Supported video modes	1080p
Contrast ratio (dynamic)	100000000:1
Contrast ratio (typical)	-
Display number of colors	16.78 million colors
Display brightness (typical)	250 cd/m²
Supported graphics resolutions	1920 x 1080 (HD 1080)
Tilt angle range	-5 - 15 °
Certification	MPR II
Product color	Black
RMS rated power	4 W
Number of speakers	2
Energy efficiency scale	A to G
Power consumption (off)	0.3 W
Power consumption (standby)	0.5 W
Power consumption (typical)	22.6 W
Sustainability certificates	ENERGY STAR
Cables included	HDMI, VGA

Weight and Dimensions

Width (without stand)	- mm
Weight (without stand)	- g

Summary

Important Safety Notice

Exploded Diagram

Product Exploded Diagram

Diagram showing the components of the Acer KG251Q monitor and their assembly order.

Wiring Connectivity Diagram

Mechanical Instruction

Disassembly and Assembly SOP

Disassembly Procedures

Step-by-step guide on how to disassemble the Acer KG251Q monitor components.

Assembly Procedures

Step-by-step guide on how to reassemble the Acer KG251Q monitor components.

Troubleshooting

FRU List

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