Chapter 18 Troubleshooting250OtherInformationSymptom Possible causes ActionConnect the external monitor.Images are not displayed onthe embedded monitor. (whenthe external monitor is notconnected)Connection to the external monitor isremoved in a state where images areoutput to only the external monitor.Reset the output setting of the embedded monitor andexternal monitor. (Turn on the power of the DS-L3again, turn off it while the Power indicator is blinking,and then turn on the power again.)Cables are connected incorrectly.Use the commercial DVI cable (digital/analog) toconnect the DVI-I connector of the DS-L3 to the videoinput connector of the external monitor.Images are not displayed onthe external monitor. The external monitor does not supportthe video format of the DS-L3. Use an XGA or SXGA-capable external monitor.A noise shows up in the edge ofthe screen when projectingimages onto a monitor orprojector.The phase of output signals does notaccord with the display device.Press the [LCD CHART] button in the [SETUPMENU : ADDITIONAL] window to display LCD chartsfor a monitor, and adjust a clock phase and clockpitch in the display device (for details on theadjustment, see the instructions manual of the displaydevice). To exit, press the [X] button on the top right.18.3 Menu OperationSymptom Possible causes ActionThe embedded monitor is operatedwithout using a stylus.Use the attached stylus for operating the embeddedmonitor. When the stylus cannot be prepared,operate the screen by a light touch with yourfingertips. Do not touch the screen with a sharp orhard object.The screen cannot beoperated.The display of the external monitorcannot be operated.When images are output to only the external monitor,connect a USB mouse to the DS-L3 and then operatethe display.18.4 View of ImagesSymptom Possible cause ActionThe optical device is out of focus. Bring the optical device into focus by operating thefocus drive or focusing ring.The aperture diaphragm is closed toomuch when using the microscope.Adjust the aperture diaphragm to 70 to 80 percent ofthe numerical aperture of the objective, or 70 to 80percent of the pupil of the objective.The magnifying power of the opticaldevice is too much.As a guide, use 500 to 1000 times the numericalaperture of the objective for the magnifying power.The electronic zoom is being used forobservation.Use of the electronic zoom may cause an image toblur depending on the magnification.Revise the setting of [SHARPNESS] in the [CAMERAMENU : IMAGE] window.The sharpness setting is low. For the external monitor, adjust the sharpness settingfor the monitor.The system is used in a place subjectto frequent vibration. Use the system in a stabile, vibration-free place.The image blurs.The exposure time is too long.If setting the exposure time long for a subject inmotion, the subject is blurred. Change the exposuremode to shutter priority or manual, and set theexposure time to a fast value.When there is difficulty in focusing a dark subject, it isrecommended to use focus priority.
