HP Z24q Maintenance and Service Guide - Page 22

DP out test Confirm whether image displays USB Hub Test Confirm USB function of 4-USB Type-A working normally. Computer / DVD player and other monitor Computer or Notebook Support and troubleshooting The following table lists possible problems, the possible cause or each problem, and the recommended solutions. Table 4-2: Solving common problems Problem Possible cause Solution Screen is blank or Power cord is disconnected. video is flashing. Monitor is turned off. Master power switch is set to off. Video cable is improperly connected. System is in Sleep mode. Video card is incompatible. Connect the power cord. Power the power button. NOTE: If pressing the Power button has no effect, press and hold the power button for 10 seconds to disable the Power button lockout feature. Set the master power switch on the rear of the monitor to theOn position. Connect the video cable properly. Press any key on the keyboard or move the mouse to exit Sleep mode. Open the OSD menu and select the Input menu. Set Auto-Switch Input to Off and manually select the input. or Replace the video card or connect the video cable to one ofthe computer's onboard video sources. Image appears blurred, indistinct, or too dark. Brightness is too low. Open the OSD menu and select Brightness to adjust the brightness scale as needed. Check Video Monitor video cable is disconnected. Cable is displayed on screen. Connect the appropriate video signal cable between the computer and monitor. Be sure that the computer power is off while you connect the video cable. Input Signal Out Video resolution and/or refresh rate are set higher Change the settings to a of Range is than what the monitor supports. supported setting. 19