50
Quick Reference Guide
• Swap the computer and monitor power cables to determine if the monitor’s power
cable is defective.
• Check the connectors for bent or broken pins (it is normal for monitor cable connectors
to have missing pins).
C
H E C K
T H E
M O N I T O R
P O W E R
L I G H T
—
• If the power light is lit or blinking, the monitor has power.
• If the power light is off, firmly press the button to ensure that the monitor is turned on.
• If the power light is blinking, press a key on the keyboard or move the mouse to resume
normal operation.
T
E S T
T H E
E L E C T R I C A L
O U T L E T
—
Ensure that the electrical outlet is working by testing
it with another device, such as a lamp.
C
H E C K
T H E
D I A G N O S T I C
L I G H T S
—
See "Diagnostic Lights" on page 26.
The screen is difficult to read
C
H E C K
T H E
M O N I T O R
C A B L E
C O N N E C T I O N
—
• Ensure that the monitor cable is connected to the correct graphics card (for dual
graphics card configurations).
• If you are using the optional
DVI-to-VGA
adapter, ensure that the adapter is correctly
attached to the graphics card and monitor.
• Ensure that the monitor cable is connected as shown on the setup diagram for your
computer.
• Remove any video extension cables and connect the monitor directly to the computer.
• Swap the computer and monitor power cables to determine if the monitor’s power
cable is defective.
• Check the connectors for bent or broken pins (it is normal for monitor cable connectors
to have missing pins).
C
H E C K
T H E
M O N I T O R
P O W E R
L I G H T
—
• If the power light is lit or blinking, the monitor has power.
• If the power light is off, firmly press the button to ensure that the monitor is turned on.
• If the power light is blinking, press a key on the keyboard or move the mouse to resume
normal operation.
T
E S T
T H E
E L E C T R I C A L
O U T L E T
—
Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
C
H E C K
T H E
D I A G N O S T I C
L I G H T S
—
Summary of Contents for Precision T7400 DCDO
Page 4: ...4 Contents ...
Page 52: ...52 Quick Reference Guide ...
Page 58: ...58 Index ...
Page 62: ...62 Tartalomjegyzék ...
Page 126: ...126 Tárgymutató ...
Page 192: ...192 Indeks ...
Page 262: ...262 Указатель ...
Page 263: ...320 אינדקס ...
Page 317: ...266 תוכן ...
Page 320: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Precision T7400 מדריך עזר מהיר דגם DCDO ...