Hardware Reference
In-Depth Information
produce an image onscreen, look to other parts of the video subsystem for your problem.
The monitor cable can sometimes be the source of display problems. A bent pin in the connector that
plugs into the video adapter can prevent the monitor from displaying images, or it can cause color
shifts. Most of the time, you can repair the connector by carefully straightening the bent pin with
sharp-nosed pliers. A loose cable can also cause color shifts; make sure the cable is securely
attached.
If the pin breaks off or the connector is otherwise damaged, you can sometimes replace the monitor
cable. Some monitor manufacturers use cables that disconnect from the monitor and video adapter,
whereas others are permanently connected. Depending on the type of connector the device uses at the
monitor end, you might have to contact the manufacturer for a replacement.
If you narrow down the problem to the display, consult the documentation that came with the monitor
or call the manufacturer for the location of the nearest factory repair depot. Third-party depot repair
service companies are also available that can repair most displays (if they are no longer covered by a
warranty); their prices often are much lower than factory service.
Caution
Never
attempt to repair a CRT monitor yourself. Touching the wrong component can be fatal.
The display circuits can hold extremely high voltages for hours, days, or even weeks after the
power is shut off. A qualified service person should discharge the CRT and power capacitors
before proceeding.
