Troubleshooting Without Diagnostics

 

 

 

 

 

 

Solving Display Problems (Continued)

 

 

 

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

High pitched noise coming

Brightness and/or

Lower brightness and/or contrast

 

from inside a flat panel

contrast settings are too

settings.

 

monitor.

high.

 

 

 

 

 

 

 

 

 

 

Fuzzy focus; streaking,

Flat panel monitor’s

1.

Select the monitor’s

 

ghosting, or shadowing

internal digital

 

Auto-Adjustment option in the

 

effects; horizontal scrolling

conversion circuits may

 

monitor’s on-screen display

 

lines; faint vertical bars; or

be unable to correctly

 

menu.

 

unable to center the picture

interpret the output

2.

Manually synchronize the Clock

 

on the screen.

synchronization of the

 

 

and Clock Phase on-screen

 

(flat panel monitors using

graphics card.

 

 

 

display functions. Download

an analog VGA input

SoftPaq SP20930 or SP22333,

connection only)

depending on the monitor, to

 

 

assist with the synchronization.

Certain typed symbols do

The font you are using

not appear correct.

does not support that

 

particular symbol.

Use the Character Map to locate the and select the appropriate symbol. Click Start > All Programs >

Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document.

Service Reference Guide, dc5000

360201-002

D–11