Before Requesting Service | Samsung S27A550H, S23A550H, S20A550H

5-2 Before Requesting Service

Please check the following before requesting After-Sales service. If the problem continues, please contact your nearest Samsung Electronics Service Center.

A blank screen appears / I cannot turn the product on

	Is the power cord connected properly?	Check the connection status of the power cord.

		(Connected using the D-sub cable)
		Check the cable connecting the PC and the product.
	Is the <Check Signal Cable> message displayed on the	(Connected using the DVI cable)
	screen?	If the message appears on the screen even if the cable is
		If the message appears on the screen even if the cable is
		properly connected, recheck the input signal by pressing the [
		] button of the product.

		This occurs when the signal from the graphics card exceeds
	Is the <Not Optimum Mode> message displayed on the	the maximum resolution or the maximum frequency of the
	Is the <Not Optimum Mode> message displayed on the	product.
	screen?	product.
	screen?	In this case, set up the appropriate resolution and the fre-

		quency for the product.

		1. This occurs when the power saving function is running.
		If you click the mouse or press any key, the screen will be
	Is a blank screen displayed and does the power LED blink at	turned on.
	a 1 second interval?	2. If the "Check Signal Cable" condition persists for more than
		five minutes, Lossless mode will be activated. In Lossless
		mode, the backlight of the monitor will turn off.

		If you connect the DVI cable when the PC has booted up or if
		you reconnect the DVI cable after disconnecting the cable
	Did you connect with a DVI cable?	while using a PC, the screen may not be displayed because
		some graphics cards do not output the video signal.
		In this case, reboot the PC while the DVI cable is connected.

		Blank spaces on the screen are not caused by the monitor.
		The cause of the problem is the PC or graphics card, and can
		be fixed by adjusting the screen size in the HDMI or DVI
	Blank spaces are found at the top and bottom of the screen	option of the graphics card settings menu.
	when an [HDMI] or [HDMI-DVI] cable is connected to the	If the graphics card settings menu has no option to adjust the
	monitor and PC.	screen size, update the graphics card driver to the latest ver-
		sion.
		(Please contact the graphics card or computer manufacturer
		for details on how to adjust the screen settings.)

THE IMAGE IS TOO LIGHT OR TOO DARK.

Adjust the <Brightness> and <Contrast>. (Refer to the <Brightness>, <Contrast>)

The display brightness can differ according to the mode set for <Angle>.

If <Bright> is set to <Dynamic Contrast>, the display brightness can differ according to the input signal.

The on screen adjustment menu (OSD) does not appear.

Did you cancel the screen adjustment?

Check if the OSD Adjustment Lock function is set to Off.

Troubleshooting

5-2

S23A550H, S27A550H, S20A550H specifications

The Samsung S20A550H, S27A550H, and S23A550H series are part of Samsung's A-series displays, widely recognized for their impressive technological advancements and exceptional performance. These models cater to both professional and casual users, delivering vivid imagery combined with ergonomic design and advanced features.

The S20A550H is a 20-inch monitor that boasts Full HD resolution (1920 x 1080), ensuring crisp visuals suitable for a variety of applications. It utilizes Samsung’s advanced Panel technology that allows for wide viewing angles and excellent color accuracy. Many users appreciate its Flicker-Free technology, which reduces eye strain during prolonged use. The S20A550H’s ergonomic stand enables height adjustment and tilt capabilities, promoting better posture and user comfort.

The S23A550H model features a slightly larger 23-inch display that also offers Full HD resolution. This monitor is built with an ultra-slim design that fits well in modern office setups and home environments. The S23A550H employs Samsung's Magic Upscale feature, enhancing lower-resolution images to ensure sharp details and vibrant colors. Additionally, this monitor comes equipped with an Eco Saving mode which adjusts the brightness based on ambient light, further conserving energy.

Meanwhile, the S27A550H stands out with its impressive 27-inch size, providing an expansive workspace ideal for multitasking. With similar Full HD capabilities, it delivers immersive viewing experiences. The S27A550H supports multiple connectivity options, including HDMI and DisplayPort, facilitating easy integration with various devices. Its sleek design and ultra-narrow bezels enhance the immersive experience, making it a great choice for gaming and multimedia consumption.

All three monitors feature Samsung's advanced Eye Saver Mode, designed to reduce blue light emissions, promoting user comfort during long hours of use. They also utilize Samsung's advanced color reproduction technology, ensuring a broad color palette for stunning visuals in photos, videos, and graphic design work.

In conclusion, the Samsung S20A550H, S27A550H, and S23A550H models provide a balanced combination of performance, comfort, and design, catering to a wide range of user needs. Whether you're a professional seeking accurate colors or a casual user enjoying multimedia content, these monitors offer impressive features that enhance the overall viewing experience.