JVC DT-V1710CGU Instruction Manual - Page 26

TROUBLESHOOTING (cont'd) Problems Irregular color Wrong picture position, wrong picture size Front panel buttons and knobs do not function Points to be checked Is the monitor placed or moved close to a speaker or any other device incorporating a magnet? Has the position of the monitor been changed with the power on? Has the picture position, size or distortion been changed? Have the UNDER SCAN or ASPECT button been pressed? Has the CONTROL LOCK function been set to ON? Has the monitor's setting been changed to enable control from an external unit via the REMOTE terminals? Measures (Remedy) Move the device away from the monitor. Press the DEGAUSS button on the front panel to degauss the screen. When degaussing, wait more than 30 minutes for maximum effect. Adjust the picture size (H. SIZE, V. SIZE) or position (H. POSITION, V. POSITION) in the [SIZE/POSI. ADJ.] item in the screen. Adjust the picture distortion (PINCUSHION, PIN. BALANCE, TRAPEZOID and PARALLELOGRAM) in the [DISTORTION ADJ.] item in the screen. It may not be possible to expand the picture due to the selected input mode. In this case, adjustment is impossible. When the UNDER SCAN or ASPECT button is lit, press each button to invalidate each setting. Set the CONTROL LOCK function to OFF. Change the setting of the external control to control the monitor locally. Reference pages 4 21 5 22 23, 24 The following are not malfunctions: ● You may see two horizontal lines on the monitor. They are the shadows of the "damper lines" that are necessary for composing the monitor. These lines are not a malfunction. Damper line MUTING VOLUME UNDER DEGAUSS SCAN PULSE CROSS COLOR OFF MENU SCREENS ASPECT AREA CHECK MARKER SLOT 1 SLOT 2 SLOT 3 A B C D E F INPUT SELECT POWER (Front view of DT-V1910CG shown) ● About CRT tube reflection (when Zoom mode is used.) The screen might appear as brownish white. This is due to a reflection of part of the image on the CRT caused by certain signal sources, and it is not a malfunction. ● When a bright still image (such as a white cloth) is displayed for a long period, it may appear to be colored. This is due to the structure of the cathode ray tube and will disappear when another image is displayed. ● You may sometimes experience a mild electric shock when you touch the picture tube. This phenomenon is due to a normal buildup of static electricity on the CRT and is not harmful. ● The monitor emits a strange sound when the room temperature changes suddenly. This is only a problem if an abnormality appears on the screen as well. ● If two or more monitors are operated next to each other, their images may shake or be distorted. This phenomenon is due to mutual interference; it is not a malfunction. Move the monitors away from each other until the interference disappears or turn the power off on any monitor that is not being used. When black vertical lines appear on the screen Black vertical lines may appear on the screen if the aperture grill is tilted as a result of being shaken or jolted during shipment. MUTING VOLUME UNDER DEGAUSS SCAN PULSE CROSS COLOR OFF MENU SCREENS ASPECT AREA CHECK MARKER SLOT 1 SLOT 2 SLOT 3 A B C D E F INPUT SELECT POWER MUTING VOLUME UNDER DEGAUSS SCAN PULSE CROSS COLOR OFF MENU SCREENS ASPECT AREA CHECK MARKER SLOT 1 SLOT 2 SLOT 3 A B C D E F INPUT SELECT POWER MUTING VOLUME UNDER DEGAUSS SCAN PULSE CROSS COLOR OFF MENU SCREENS ASPECT AREA CHECK MARKER SLOT 1 SLOT 2 SLOT 3 A B C D E F INPUT SELECT POWER In this case, try tapping the monitor on the side. If this does get rid of the lines, follow the procedure below. 1. Display a white screen, so that the problem area can be seen clearly. 2. Maximize the "CONTRAST" and "BRIGHT" adjustments, then place a bright white rectangle on the area. 3. After a while, the lines should disappear. 26