User manual HP COMPAQ PROFESSIONAL MONITORS 22 INCH

[. . . ] b Compaq P1220 July 2001 Regulatory Compliance Notices Federal Communications Commission Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] DDC is routed through previously unused pins of the 15-pin VGA connector. The system will "Plug and Play" if both monitor and computer implement the DDC protocol. DDC2Bi is available only with connector SIGNALB. 1. 5 Location Considerations When setting up and using the monitor, keep the following in mind: · For optimum viewing, avoid placing the monitor against a bright background or where sunlight or other light sources may reflect on the display area of the monitor. · Place the monitor away from strong magnetic or electromagnetic fields, such as high capacity transformers, electric motors, large current power lines, steel pillars, etc. . . . Magnetism can cause distortion in the picture and/or color purity. · Avoid covering the slots or openings of the monitor. Allow adequate ventilation around the monitor so the heat from the monitor can properly dissipate. Avoid putting the monitor into any enclosure that does not have adequate ventilation. · Avoid exposing the monitor to rain, excessive moisture, or dust, as this can cause a fire or shock hazard. · Avoid placing the monitor, or any other heavy object, on the power cord. Damage to the power cord can cause a fire or electrical shock. · When transporting the monitor, handle it with care. 1. 6 Cleaning Your Monitor Power Management Function When the monitor is in its normal operating mode (without USB operation), the monitor utilizes less than 140 watts of power and the Power LED is green. The monitor also supports a reduced power state. The reduced power state will be entered into if the monitor detects the absence of either the horizontal sync signal and/or the vertical sync signal. Upon detecting the absence of these signals, the monitor screen is blanked, the backlight is turned off, and the Power LED is turned amber. OK The monitor comes with a tilt/swivel base. This enables you to position the monitor at the best angle and tilt for maximum viewing comfort. Screen Position Adjustment Adjust the tilt and rotation of the monitor by placing your hands at opposite sides of the case. You can adjust the monitor 90 degrees right or left, 10 degrees up or 5 degrees down, as shown below. Monitor Call for your authorized Product Support. [. . . ] · Turn off the monitor and turn on then. · Disconnect all the cables connected to the Upstream ports and re-connect then. No operation of the USB devices · [Generic USB HUB] is not listed in [Device Manager]. PROBLEM Black vertical lines are visible on the screen. Abnormal Picture ITEMS TO CHECK Thin vertical black lines on one or both sides of the screen. This minor condition is caused by grille element overlap which can occur during shipping. [. . . ]