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Dell Latitude LM Reference and Troubleshooting Guide - Page 49

Troubleshooting the CD-ROM Drive, ROM Drives Test Group. Does your CD-ROM - boot from cd

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6. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. Troubleshooting the CD-ROM Drive During POST, the computer checks the CD-ROM drive, comparing its characteristics with the system configuration information. (The CD-ROM/hard-disk drive access indicator blinks as the computer performs this check.) If a failure occurs with the drive, make a copy of the Diagnostics Checklist found in Chapter 5 and fill it out as you complete the following procedure: 1. Install the CD-ROM drive in the options bay. Reboot the computer by pressing the key combination. Does the CD-ROM/harddisk drive access indicator appear in the status display panel during the boot routine. Yes. Go to step 3. No. Go to step 2. 2. Remove and reinsert the CD-ROM drive. Reboot the computer. Does the CD-ROM/hard-disk drive access indicator appear in the status display panel during the boot routine? Yes. Go to step 3. No. Go to step 7. 3. Remove the hard-disk drive and boot the computer. Does the CD-ROM/hard-disk drive access indicator appear in the status display panel? Yes. Go to step 4. No. Go to step 7. 4. Reinstall the hard-disk drive. Then check the config.sys file (in the Microsoft Windows 95 operating system, check the CD-ROM configuration in the Settings folder). Is the CD-ROM driver (tsycdrom.sys) installed? Yes. Go to step 5. No. Load the driver and return to step 1 to begin this procedure again. (To load the driver, use the program diskette sets you made when you first received your Dell computer.) 5. Insert a bootable diskette into drive A, and reboot the computer. 6. Type d: and press . Then type dir and press . Does MS-DOS display the root directory contents for drive D? Yes. The problem is resolved. No. Go to step 7. 7. Insert your Dell diagnostics diskette into drive A, and reboot the computer. Then run the IDE CD ROM Drives Test Group. Does your CD-ROM drive pass all the tests? Yes. Return to step 1, and perform this troubleshooting procedure again. If you continue to experience trouble, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) No. Go to step 8. 8. Call Dell for technical assistance. See Chapter 5, "Getting Help," for instructions. Troubleshooting the Hard-Disk Drive During POST, the computer checks the hard-disk drive, comparing its characteristics with the system configuration information. (The hard-disk drive access indicator blinks as the computer performs this check.) If a failure occurs with the drive, make a copy of the Diagnostics Checklist found in Chapter 5 and fill it out as you complete the following procedure: 1. Reboot the computer by pressing . Does the CD-ROM/harddisk drive access indicator appear in the status display panel during the boot routine, and does the drive boot the operating system? Yes. If a message appears on the display, see Table 32 for an explanation of the message and possible corrective actions. Then go to step 6. No. Go to step 2. 2. Insert a bootable diskette into drive A, and reboot the computer. Troubleshooting Your Computer 3-15

Section	Page
Dell®Latitude® LM Reference and Troubleshooting Gu...	1
Safety Instructions	3
When Using Your Computer	3
Ergonomic Computing Habits	4
When Removing or Installing Memory Modules	5
Additional Safety Guidelines	5
Protecting Against Electrostatic Discharge	5
Preface	7
About This Guide	7
Warranty and Return Policy Information	7
Other Documents You May Need	8
Notational Conventions	8
Warnings, Cautions, and Notes	8
Typographical Conventions	8
Introduction	19
Hardware Features	20
Software Features	21
Accessing Online Documentation	22
Available Options	22
Getting Help	22
Customizing System Features	23
System Utilities	23
Setup Program	24
Accessing the Setup Program	24
Main Menu Options	24
Date	25
Time	25
Hard-Disk Drive 0	25
Boot Sequence	25
Diskette A	26
Total Memory	26
Video Memory	26
Peripherals Menu Options	26
Integrated Peripherals	26
Serial Port	26
Infrared	27
Parallel Mode	28
Diskette Mode	28
Video Mode	28
Touch Pad	28
CD-ROM Drive Speed	28
Security Menu Options	28
Admin Password	29
Primary Password	29
Backup Password	30
Password on Boot	30
Power Menu Options	30
Power Savings	31
AC Power Save	31
Standby Time-Out	31
Suspend Time-Out	32
Suspend-to-Disk Time-Out	32
Hard-Disk Drive Time-Out	32
DIM Mode Time-Out	32
Smart CPU Mode	33
Alarm Resume	33
Exit Menu Options	33
Save Changes & Exit	34
Discard Changes & Exit	34
Get Default Values	34
Load Previous Values	34
Save Changes	34
Troubleshooting Your Computer	35
Backing Up Your Files	35
Basic Checks	35
Checking Connections	36
Look and Listen	37
Setup Options	38
Messages and Codes	38
System Beep Codes	40
Finding Software Solutions	42
Installing and Configuring Software	42
Start-Up Files	42
Expanded and Extended Memory	42
Using Software	43
Error Messages	43
Input Errors	43
Memory-Resident Programs	43
Program Conflicts	43
Avoiding Interrupt Assignment Conflicts	43
Troubleshooting Procedures	44
Troubleshooting a Wet Computer	44
Troubleshooting a Damaged Computer	45
Troubleshooting a Power Failure	46
Total Power Failure When Using the AC Adapter	47
Total Power Failure When Using a Battery	47
No Power to a Part of the Computer	48
Troubleshooting the Diskette Drive	48
Troubleshooting the CD-ROM Drive	49
Troubleshooting the Hard-Disk Drive	49
Troubleshooting an External Keyboard	50
Troubleshooting Memory	51
Troubleshooting the Built-In Display	51
Troubleshooting an External Monitor	52
Troubleshooting the Serial and Parallel Ports	53
Troubleshooting the Basic I/O Functions	53
Troubleshooting a Parallel Printer	54
Troubleshooting a Serial I/O Device	54
Troubleshooting the Infrared Port	55
Troubleshooting the Touch Pad	55
Troubleshooting Audio Functions	56
Running the Dell Diagnostics	57
Features of the Dell Diagnostics	57
When to Use the Dell Diagnostics	57
Before You Start Testing	58
Starting the Dell Diagnostics	58
How to Use the Dell Diagnostics	59
Confirming the System Configuration Information	60
How to Use the Menu	61
Main Menu Options	61
Run	61
Select	61
Subtest	61
Run Under Subtest	62
Select Under Subtest	62
Options Under Subtest	62
Test Limits Under Subtest	62
About Under Subtest	62
Key-Help Under Subtest	62
Quit Menu Under Subtest	62
Options	62
Number of Times to Repeat Test(s)	63
Maximum Errors Allowed	63
Pause for User Response	63
Output Device for Status Messages	64
Output Device for Error Messages	64
Test Limits	64
About	65
Key-Help	65
Quit	65
Tests in the Dell Diagnostics	65
Error M essages	68
RAM Test Group	68
Why Run a RAM Test?	69
Subtests	69
System Set Test Group	69
Why Run a System Set Test?	69
Subtests	70
Video Test Group	70
Why Run a Video Test?	70
Subtests	71
Keyboard Test Group	71
Why Run a Keyboard Test?	71
Subtests	72
Mouse Test	72
Why Run the Mouse Test?	72
Subtests	72
Diskette Drives Test Group	72
Why Run a Diskette Drives Test?	72
Subtests	73
Hard-Disk Drives (Non-SCSI) Test Group	73
Why Run a Hard-Disk Drives Test?	73
Subtests	73
IDE CD ROM Drives Test Group	74
Why Run an IDE CD ROM Drives Test?	74
Subtests	74
Serial/Infrared Ports Test Group	74
Why Run a Serial/Infrared Ports Test?	74
Subtests	75
Parallel Ports Test Group	75
Why Run a Parallel Ports Test?	75
Subtests	76
SCSI Devices Test Group	76
Network Interface Test Group	76
Audio Test Group	76
Why Run an Audio Test?	76
Subtests	76
Getting Help	79
Technical Assistance	79
Help Tools	79
Dell Q&A	80
System User’s Guide	80
Reference and Troubleshooting Guide	80
World Wide Web on the Internet	80
Commercial Online Services	81
Dell Diagnostics Program	81
AutoTech Service	81
TechFax Service	81
TechConnect BBS	82
Automated Order-Status System	82
Problems With Your Order	82
Product Information	82
Returning Items for Warranty Repair or Credit	82
Before You Call	83
Dell Contact Numbers	85
Technical Specifications	95
Diagnostic Video Tests	105
Video Memory Test	105
Video Hardware Test	105
Text Mode Character Test	105
Character Attributes Subtest (80 x 25)	106
Character Set Subtest (80 x 25)	106
Character Attributes Subtest (40 x 25)	106
Character Set Subtest (40 x 25)	106
Text Mode Color Test	107
Color Attributes Subtest (80 x 25)	107
Color Attributes Subtest (40 x 25)	108
Color Bars Subtest	108
Text Mode Pages Test	108
Graphics Mode Test	108
320 x 200 Graphics Mode Screens	108
320 x 200 16-Color Graphics Mode Screen	108
640 x 200 16-Color Graphics Mode Screen	108
640 x 350 16-Color Graphics Mode Screen	108
640 x 480 2-Color Graphics Mode Screen	108
640 x 480 16-Color Graphics Mode Screen	109
320 x 200 256-Color Graphics Mode Screen	109
640 x 480 256-Color Graphics Mode Screen	109
800 x 600 16-Color Graphics Mode Screen	109
800 x 600 256-Color Graphics Mode Screen	109
1024 x 768 16-Color Graphics Mode Screen	109
1024 x 768 256-Color Graphics Mode Screen	109
Color Palettes Test	109
Solid Colors Test	110
Regulatory Notices	111
FCC Class B Notice (U.S. Only)	111
Modem Requirements	111
Type of Service	111
Telephone Company Procedures	112
If Problems Arise	112
Installation and Labeling	112
Load Number	112
IC Notice (Canada Only)	112
Canadian Modem Requirements	113
EN 55022 Compliance (Czech Republic Only)	113
CE Notice	113
VCCI Notices (Japan only)	114
Class 1 Notice	114
Class 2 Notice	114
Korean Regulatory Notice	114
Class A Device	115
Class B Device	115
Warranties and Return Policy	117
Limited Three-Year Warranty (U.S. Only)	117
Coverage During Year One	117
Coverage During Years Two and Three	117
General	118
Limited Three-Year Warranty (Canada Only)	118
Coverage During Year One	119
Coverage During Years Two and Three	119
General	119
Limited One-Year Warranty (U.S. Only)	120
Limited One-Year Warranty (Canada Only)	121
Total Satisfaction” Return Policy (U.S. and Canad...	122

Match case Limit results 1 per page

Troubleshooting Your Computer

3-15

Call Dell for technical assistance.

See Chapter 5, “Getting Help,” for instructions.

Troubleshooting the CD-ROM Drive

During POST, the computer checks the CD-ROM drive,

comparing its characteristics with the system configura-

tion information. (The CD-ROM/hard-disk drive access

indicator blinks as the computer performs this check.)

If a failure occurs with the drive, make a copy of the

Diagnostics Checklist found in Chapter 5 and fill it out as

you complete the following procedure:

Install the CD-ROM drive in the options bay.

Reboot the computer by pressing the

CTRL

ALT

DEL

> key combination. Does the

CD-ROM/harddisk drive access indicator appear

in the status display panel during the boot

routine.

Yes.

Go to step 3.

No.

Go to step 2.

Remove and reinsert the CD-ROM drive. Reboot

the computer. Does the CD-ROM/hard-disk drive

access indicator appear in the status display panel

during the boot routine?

Yes.

Go to step 3.

No.

Go to step 7.

Remove the hard-disk drive and boot the com-

puter. Does the CD-ROM/hard-disk drive access

indicator appear in the status display panel?

Yes.

Go to step 4.

No.

Go to step 7.

Reinstall the hard-disk drive. Then check the

config.sys

file (in the Microsoft Windows 95 oper-

ating system, check the CD-ROM configuration

in the Settings folder). Is the CD-ROM driver

(

tsycdrom.sys

) installed?

Yes

Go to step 5.

No.

Load the driver and return to step 1 to begin this

procedure again. (To load the driver, use the program

diskette sets you made when you first received your

Dell computer.)

Insert a bootable diskette into drive A, and reboot

the computer.

Type

and press <

ENTER

>. Then type

dir

and

press <

ENTER

>. Does MS-DOS display the root

directory contents for drive D?

Yes.

The problem is resolved.

No.

Go to step 7.

Insert your Dell diagnostics diskette into drive A,

and reboot the computer. Then run the IDE CD

ROM Drives Test Group. Does your CD-ROM

drive pass all the tests?

Yes.

Return to step 1, and perform this troubleshoot-

ing procedure again. If you continue to experience

trouble, call Dell for technical assistance. (See Chap-

ter 5, “Getting Help,” for instructions.)

No.

Go to step 8.

Call Dell for technical assistance.

See Chapter 5, “Getting Help,” for instructions.

Troubleshooting the Hard-Disk Drive

During POST, the computer checks the hard-disk drive,

comparing its characteristics with the system configura-

tion information. (The hard-disk drive access indicator

blinks as the computer performs this check.) If a failure

occurs with the drive, make a copy of the Diagnostics

Checklist found in Chapter 5 and fill it out as you com-

plete the following procedure:

Reboot the computer by pressing

CTRL

ALT

DEL

>. Does the CD-ROM/hard-

disk drive access indicator appear in the status

display panel during the boot routine, and does

the drive boot the operating system?

Yes.

If a message appears on the display, see Table 3-

2 for an explanation of the message and possible cor-

rective actions. Then go to step 6.

No.

Go to step 2.

Insert a bootable diskette into drive A, and reboot

the computer.