Page 1
Service Manual - U2722D/DX Version: 01 Date: 2021/10/30
Page 2
1. Important Safety Notice Product Announcement: This product is certificated to meet Ro HS ! To ensure using a proper screwdriver, follow the Directive and Lead-Free produced definition. torque and f...
Page 3
2. Exploded view diagram with list of items Item Description Q'ty Remark 1 1 Panel ASSY Middle Frame USB BD 4 1 Key BD IF BD Safety Mylar Power BD 1 7 8 1 ASSY Chassis For EMEA Only, not for ASSY Rear...
Page 4
3. Wiring Connectivity Diagram
Page 5
4. How to connect and disconnect power cable/ connectivity cable WARNING: To change power cable/ connectivity cable, switch off power before unplugging the cable and replugging in required cable.
Page 6
4. How to connect and disconnect power cable/ connectivity cable
Page 7
5. Disassembly and Assembly Procedures NOTE: Lift the rear cover up carefully. Disconnect the This “Disassembly and Assembly Procedures” is for EMEA only, joystick key cable and Usb EDP cable from the...
Page 8
5. Disassembly and Assembly Procedures Use a Philips-head screwdriver to remove 13pcs screws for unlocking the middle bezel with the panel S8 module. (No.1~13 screw size=M3x5, Torque=5±0.5kgfxcm) se a...
Page 9
5. Disassembly and Assembly Procedures Remove the Mylar tape from the hooks of the S14 bracket. Use a Philips-head screwdriver to remove 6pcs screws for interface board and power board. S15 (No.1 scre...
Page 10
5. Disassembly and Assembly Procedures 5.2 Assembly Procedures: Take a black mylar to insert the hooks of the bracket Place a bracket chassis base on a protective to cover the power board, then tear o...
Page 11
5. Disassembly and Assembly Procedures Move the middle bezel with the LED board close to S9 the panel unit, then assemble the middle bezel with the front bezel and panel module. Adjust the bracket cha...
Page 12
5. Disassembly and Assembly Procedures Connect the LED cable to connector of the interface Take 1pcs joystick key and 1pcs OSD board, S13 board, then paste 1pcs aluminum foil to fix the bracket assemb...
Page 13
5. Disassembly and Assembly Procedures Use a Philips-head screwdriver to tighten 4pcs screws for locking the rear cover with the unit. Stick S17 two pieces of label on the specific positions, then ins...
Page 14
6. Trouble Shooting Instructions Self-Test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly co...
Page 15
6. Trouble Shooting Instructions Common Problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common What You Possible...
Page 16
6. Trouble Shooting Instructions Common What You Possible Solutions Symptoms Experience Intermittent Monitor • Ensure that the video cable connecting the Problems malfunctions on monitor to the comput...
Page 17
6. Trouble Shooting Instructions Product Specific Problems Problem What You Possible Solutions Experience Screen image is Image is • Check the Aspect Ratio setting in the Display too small centered on...
Page 18
6. Trouble Shooting Instructions Problem What You Possible Solutions Experience No charging No charging • Verify if the device can support one of 5 V/9 V/ when using 15 V/20 V charging profiles. USB-C...
Page 19
6. Trouble Shooting Instructions Universal Serial Bus (USB) Specific Problems Specific What You Possible Solutions Symptoms Experience USB interface is USB peripherals • Check that your display is tur...
