9Troubleshooting Guide

9.1Requirements Before Contacting Samsung Customer Service Center

9.1.1 Testing the Product

Before calling Samsung Customer Service Center, test your product as follows. If the problem persists,

contact Samsung Customer Service Center.

Check if your product is operating normally by using the product test function.

If the screen is turned off and the power indicator blinks even though the product is properly connected to a PC, perform a self-diagnosis test.

1

2

3

4

Power off both the PC and product.

Disconnect the cable from the product.

Power on the product.

If the Check Signal Cable message appears, the product is working normally.

If the screen remains blank, check the PC system, video controller and cable.

9.1.2 Checking the Resolution and Frequency

For a mode that exceeds the supported resolution (refer to "10.3Standard Signal Mode Table"), the message Not Optimum Mode. will appear for a short time.

9.1.3 Check the followings.

Installation issue (PC mode)

The screen keeps switching on and off.

Check the cable connection between the product

 

and PC, and ensure the connection is secure.

 

(Refer to "3.2Connecting and Using a PC")

 

 

 

 

Screen issue

 

 

The power LED is off. The screen will not switch

Check that the power cable is connected

on.

correctly (Refer to "3.2Connecting and Using a

 

PC")

 

 

The message Check Signal Cable appears.

Check that the cable is properly connected to the

 

product. (Refer to "3.2Connecting and Using a

 

PC")

 

 

 

Check that the device connected to the product is

 

powered on.

 

 

9 Troubleshooting Guide 73

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Samsung LC27A550US/EN, LC23A550US/ZA Troubleshooting Guide, Testing the Product, Checking the Resolution and Frequency

LC23A550USSCI, LC27A550US/EN, LC23A550US/CI, LC23A550US/KZ, LC27A550US/CI specifications

The Samsung LC27A550USSCI and LC23A550US series are part of Samsung's innovative lineup of monitors designed to deliver exceptional performance and visual quality. These models cater to both casual users and professionals, boasting a range of features and technologies that enhance productivity and entertainment experiences.

One of the standout features of the LC27A550USSCI and LC23A550US models is their stunning display quality. With a high-resolution panel, these monitors offer crisp images and vibrant colors, making them ideal for tasks such as graphic design, video editing, and gaming. The inclusion of Samsung's advanced HDR10 technology further enhances the viewing experience by providing greater contrast and dynamic range, allowing users to see more details in both the shadows and highlights.

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Connectivity options are robust on these models, allowing users to easily connect to various devices. With multiple HDMI and DisplayPort inputs, along with USB hub functionalities, users can seamlessly switch between different sources without hassle. This versatility ensures that the monitors can cater to a range of setups, from personal desktops to multi-monitor configurations for enhanced productivity.

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In summary, the Samsung LC27A550USSCI, LC23A550US/EN, LC27A550US/CI, LC23A550US/KZ, and LC23A550US/CI offer a perfect blend of quality, performance, and convenience. With their stunning display, ergonomic design, adaptive sync technologies, versatile connectivity options, and energy-efficient characteristics, these monitors are well-suited for a variety of users, whether for work or play.