Dell Latitude XPi CD Reference Guide - Page 67

Troubleshooting an External Monitor, Troubleshooting Serial and Parallel Ports - power plug

Get Dell Latitude XPi CD PDF manuals and user guides View all Dell Latitude XPi CD manuals
Add to My Manuals
Save this manual to your list of manuals

Page 67 highlights

9. Turn on the computer and the monitor, and adjust the monitor's brightness and contrast controls. Is the monitor readable? Yes. The computer's display may be defective. Call Dell for technical assistance. (See Chapter 5, "Getting Help.") No. The computer's video controller on the system board may be defective. Run the Video Test Group of the Dell diagnostics. (See Chapter 4, "Running the Dell Diagnostics," for instructions.) If you cannot isolate the problem after running the diagnostics, call Dell for technical assistance. (See Chapter 5, "Getting Help.") Troubleshooting an External Monitor During POST, the computer checks to see if an external monitor is attached to the computer; if one is, the video control circuitry sends information to the external monitor rather than to the computer's display. If no image appears on the external monitor you are using when the computer boots, make a copy of the Diagnostics Checklist found in Chapter 5 and fill it out as you complete the following procedure. NOTE: Before you begin this procedure, make sure that the SYSTEM SWITCH option in the System Setup program is set to ON/OFF. For instructions, see "Using the System Setup Program" in Chapter 2. 1. Make sure the external monitor's video cable is firmly connected to the computer's monitor connector, and verify that the monitor's power cable (if it has one) is firmly plugged into an AC power source. Make sure the monitor is turned on. 2. Reboot the computer by pressing , and then adjust the monitor's brightness and contrast controls. Is the monitor readable? Allow one minute for the computer to initialize its components. Yes. The problem is resolved. No. Continue to step 3. 3. Raise the built-in display into viewing position, if necessary, and press or to switch the video image from the external monitor to the display. 4. Use the or key combination to adjust the brightness. Use the or key combination to adjust the contrast. Is the full display readable? NOTE: Contrast cannot be adjusted on the activematrix color display. Yes. The external monitor may be defective. Continue to step 5. No. The video controller on the system board may be defective. Run the Video Test Group of the Dell diagnostics. (See Chapter 4, "Running the Dell Diagnostics," for instructions.) If you cannot isolate the problem, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) 5. Turn off the computer and any attached peripherals. Disconnect all peripherals from the computer. Attach another external monitor to the computer. For instructions, see the topic titled "Connecting an External Monitor" in the online System User's Guide. If you do not have another external monitor, call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. 6. Reboot the computer, and adjust the monitor's brightness and contrast. Is the monitor readable? Allow one minute for the computer to initialize its components. Yes. The original monitor is defective. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. No. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. Troubleshooting Serial and Parallel Ports This section provides a procedure for troubleshooting the ports on your computer's serial and parallel ports (shown in Figure 3-3) and any attached peripheral devices. This section also provides a procedure for troubleshooting the computer's infrared ports. Troubleshooting Your Computer 3-27

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
Troubleshooting Your Computer
3
-
27
9.
Turn on the computer and the monitor, and
adjust the monitor’s brightness and contrast con-
trols. Is the monitor readable?
Yes.
The computer’s display may be defective. Call
Dell for technical assistance. (See Chapter 5, “Get-
ting Help.”)
No.
The computer’s video controller on the system
board may be defective. Run the Video Test Group
of the Dell diagnostics. (See Chapter 4, “Running the
Dell Diagnostics,” for instructions.) If you cannot
isolate the problem after running the diagnostics, call
Dell for technical assistance. (See Chapter 5, “Get-
ting Help.”)
Troubleshooting an External Monitor
During POST, the computer checks to see if an external
monitor is attached to the computer; if one is, the video
control circuitry sends information to the external moni-
tor rather than to the computer’s display. If no image
appears on the external monitor you are using when the
computer boots, make a copy of the Diagnostics Check-
list found in Chapter 5 and fill it out as you complete the
following procedure.
NOTE:
B
efore you begin this procedure, make sure that
the
SYSTEM SWITCH
option in the System Setup program is
set to
ON/OFF
. For instructions, see “Using the System Setup
Program” in Chapter 2.
1.
Make sure the external monitor’s video cable is
firmly connected to the computer’s monitor con-
nector, and verify that the monitor’s power cable
(if it has one) is firmly plugged into an AC power
source. Make sure the monitor is turned on.
2.
Reboot the computer by pressing
<
CTRL
><
ALT
><
DEL
>, and then adjust the monitor’s
brightness and contrast controls. Is the monitor
readable?
Allow one minute for the computer to initialize its
components.
Yes.
The problem is resolved.
No.
Continue to step 3.
3.
Raise the built-in display into viewing position,
if necessary, and press <
FN
><
F8
> or
<
CTRL
><
ALT
><
F8
> to switch the video image from
the external monitor to the display.
4.
Use the <
FN
><
↓
> or <
FN
><
↑
> key combination to
adjust the brightness. Use the <
FN
><
←
> or
<
FN
><
→
> key combination to adjust the contrast. Is
the full display readable?
NOTE:
C
ontrast cannot be adjusted on the active-
matrix color display.
Yes.
The external monitor may be defective. Con-
tinue to step 5.
No.
The video controller on the system board may be
defective. Run the Video Test Group of the Dell
diagnostics. (See Chapter 4, “Running the Dell Diag-
nostics,” for instructions.)
I
f you cannot isolate the
problem, call Dell for technical assistance. (See
Chapter 5, “Getting Help,” for instructions.)
5.
Turn off the computer and any attached periph-
erals. Disconnect all peripherals from the
computer. Attach another external monitor to the
computer.
For instructions, see the topic titled “Connecting an
External Monitor” in the online
System User’s Guide
.
If you do not have another external monitor, call Dell for
technical assistance. See Chapter 5, “Getting Help,” for
instructions.
6.
Reboot the computer, and adjust the monitor’s
brightness and contrast. Is the monitor readable?
Allow one minute for the computer to initialize its
components.
Yes.
The original monitor is defective. Call Dell for
technical assistance. See Chapter 5, “Getting Help,”
for instructions.
No.
Call Dell for technical assistance. See Chap-
ter 5, “Getting Help,” for instructions.
Troubleshooting Serial and Parallel
Ports
This section provides a procedure for troubleshooting the
ports on your computer’s serial and parallel ports (shown
in Figure 3-3) and any attached peripheral devices. This
section also provides a procedure
f
or troubleshooting the
computer’s infrared ports.