HP Rp3000 - Point of Sale System Troubleshooting Manual page 28

Table 2-4

Solving Display Problems (continued)

Clicking noise coming from inside a CRT monitor.

Cause

Electronic relays have been activated inside the monitor.

High pitched noise coming from inside a flat panel monitor.

Cause

Brightness and/or contrast settings are too high.

Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or unable to

center the picture on the screen (flat panel monitors using an analog VGA input connection only).

Cause

Flat panel monitor's internal digital conversion circuits may be

unable to correctly interpret the output synchronization of the

graphics card.

Graphics card is not seated properly or is bad.

Certain typed symbols do not appear correct.

Cause

The font you are using does not support that particular symbol. Use the Character Map to locate and select the appropriate

22

Chapter 2 Troubleshooting Without Diagnostics

Solution

None. It is normal for some monitors to make a clicking noise

when turned on and off, when going in and out of standby

mode, and when changing resolutions.

Solution

Lower brightness and/or contrast settings.

Solution

1.

Select the monitor's Auto-Adjustment option in the

monitor's on-screen display menu.

2.

Manually synchronize the Clock and Clock Phase on-

screen display functions. To download a SoftPaq that will

assist you with the synchronization, go to the following

Web site, select the appropriate monitor, and download

either SP35375 or SP35466:

1.

Reseat the graphics card.

2.

Replace the graphics card.

Solution

symbol. Click Start > All Programs > Accessories > System

Tools > Character Map. You can copy the symbol from the

Character Map into a document.

http://www.hp.com/support

ENWW