compaq prosignia 190 User Manual

							MAINTENANCE & SERVICE GUIDE
PROSIGNIA NOTEBOOK 190
INDEX PAGEPRODUCT DESCRIPTIONLEGAL NOTICEHOW TO USE THIS GUIDE
REMOVAL & REPLACEMENTILLUSTRATED PARTS CATALOGTROUBLESHOOTINGSPECIFICATIONS
Troubleshooting
Power-on Self Test (POST)
>Preliminaries
>Clearing
Password
>POST
>Compaq
Utilities
>Troubleshooting
without
Diagnostics
>Contacting
CompaqThe Power-On Self-Test (POST) is a series of tests that run every time\
the computer is turned on. POST verifies that the system is configured and functioning properly.
To run POST, complete the following steps:
Complete the  Preliminary steps .1.  
Turn on the computer.2.  
If POST does not detect any errors, the computer beeps once or twice to 
indicate that POST has run successfully. The computer boots from the har\
d 
drive or from a bootable diskette if one is installed in the diskette dr\
ive.
POST Error Messages
If the system is not functioning well enough to run POST, or if the disp\
lay is 
not functioning well enough to show POST error messages, refer to the
Troubleshooting tables in the  Troubleshooting without Diagnostics  page.
If POST detects an error, one of the following events occurs: A message with the prefix  WARNING appears, informing you where
the error occurred. The system pauses until you press  F1.
1.  
A message with the prefix  FATAL appears, informing you where the
error occurred. After the message, the system emits a series of beeps, 
then stops.2.  
Warning Messages
Warning messages indicate that a potential problem, such as a system 
configuration error, exists. When  F1 is pressed, the system should resume.
You should be able to correct problems that produce warning messages.
If you receive one of the error messages listed below, follow the recommended action.
Warning
MessagesMessage
DescriptionRecommended Action
CMOS checksum 
invalid, run SCU 
CMOSRAM information 
has been 
corrupted.Run Computer Setup to reinitialize 
CMOS-RAM. 
						

							CMOS failure, run 
SCUCMOS RAM has 
lost power.Run Computer Setup to reinitialize 
CMOS-RAM.
Diskette 
controller errorThe diskette drive 
controller failed 
to respond to the 
recalibrate 
command.If there is no diskette drive in the 
system, run Computer Setup to 
properly configure the CMOS-RAM to 
show no diskette drive present. If 
the problem persists, or if a diskette 
drive is present, complete these 
steps until the problems is solved: 
1. Check diskette drive connections. 
2. Replace diskette drive. 
3. Replace system board.
Diskette track 0 
failedThe diskette drive 
cannot read track 
0 of the diskette 
in the drive.Try another diskette. If the problem 
persists, you may need to replace 
the diskette drive.
Hard disk 
controller errorThe hard drive 
controller failed 
to respond to the 
reset command.Check the drive parameters. Turn 
off the system and check all related 
connections.
Keyboard 
controller failureThe keyboard 
failed the 
self-test 
command.Replace the system board.
Keyboard failureThe keyboard 
failed to respond 
to the RESET ID 
command.Replace the keyboard. If the 
problem persists, replace the system 
board.
No interrupts 
fromTimer 0 The 
periodic timer 
interrupt is not 
occurring.Replace the system board.
ROM at xxxx 
(LENGTH yyyy) 
with nonzero 
checksum (zz)An illegal adapter 
ROM was located 
at the specified 
address.Check the external adapter (such as 
a video card) to determine if it is 
causing the conflict.
Time/Date 
corrupt - run SCUThe time and 
date stored in the 
real time clock 
have been 
corrupted, 
possibly by a 
power loss.1. Run Computer Setup. 
2. If problem persists, replace 
auxiliary battery. 
3. If problems persists, replace 
system board
Hard disk xx 
failure (or error)A failure or an 
error occurred 
when trying to 
access the 
hard drive.1. Run ScanDisk. 
2. Check disk in DOS and Windows 
95.
Fatal Error Messages 
						

							Fatal errors emit a beep and may display a FATAL message. Fatal errors
indicate severe problems, such as a hardware failure. Fatal errors do no\
t 
allow the system to resume. Some of the Fatal error beep codes are liste\
d at 
the end of this section.
MessageDescriptionBeep code
CMOS RAM 
test failedA walking bit test of CMOS RAM location 0E (Hex) 
- 3F (Hex) failed.3
DMA 
controller 
faultyA sequential read/write of the transfer count and 
transfer address registers within the primary and 
secondary DMA controllers failed.4
Faulty DMA 
page 
registersA walking bit read/write of the 16 DMA controller 
page registers starting at location 80 Hex failed.0
Faulty 
refresh 
circuitsA continuous read/write test of port 61h found 
that bit 4 (Refresh Detect) failed to toggle within 
an allotted amount of time.1
Interrupt 
controller 
failedA sequential read/write of various Interrupt 
Controller registers failed.5
ROM 
checksum 
incorrect. A checksum of the ROM BIOS does not match 
the byte value at F000:FFFF.2
RAM error at 
location xxxxRAM error occurred during memory test.None
Fatal Error Beep Codes
NOTE: S = Short, L = Long, P = Pause
Beep CodeBeep SequenceDescription Recommended 
Action
0 S-S-S-P-S-S-L-PThe DMA page registers 
are faulty.Replace system board.
1 S-S-S-P-S-L-S-PThe refresh circuitry is 
faulty.
2 S-S-S-P-S-L-L-PThe ROM checksum is 
incorrect.
3 S-S-S-P-L-S-S-PThe CMOS RAM test 
failed.
4 S-S-S-P-L-S-L-PThe DMA controller is 
faulty.
5 S-S-S-P-L-L-S-PThe interrupt controller 
failed.
6 S-S-S-P-L-L-L-PThe keyboard controller 
failed.
7 S-S-L-P-S-S-S-PGraphics adapter is 
faulty. 
						

							8 S-S-L-P-S-S-L-PInternal RAM is faulty.Replace memory board or 
system board if memory on 
system board is faulty.
  
						

							MAINTENANCE & SERVICE GUIDE
PROSIGNIA NOTEBOOK 190
INDEX PAGEPRODUCT DESCRIPTIONLEGAL NOTICEHOW TO USE THIS GUIDE
REMOVAL & REPLACEMENTILLUSTRATED PARTS CATALOGTROUBLESHOOTINGSPECIFICATIONS
Troubleshooting
Compaq Utilities & F10 Setup
>Preliminaries
>Clearing
Password
>POST
>Compaq 
Utilities
>Troubleshooting
without
Diagnostics
>Contacting
CompaqCompaq Utilities contain several functions that determine if various com\
puter 
devices are recognized by the system and checks to see if the devices ar\
e 
operating properly. 
Provide information about the system once it is configured. 
Compaq Utilities include the following programs:
Computer Setup
l   
Compaq Diagnosticsl   
To access Compaq Utilities:Turn on or restart the computer by clicking  Start -> Shut Down ->
Restart  the computer.
1.  
Press F10 when the blinking cursor appears in the upper-right corner of
the display.2.  
Select a menu option.3.  
Selecting Computer Setup or Compaq Diagnostics for Windows
The computer features two system management utilities:
Computer Setup is a system information and configuration utility that 
can be used even when your operating system is not working or will not 
load. It includes custom settings that are not available in Windows.
l   
To configure a device in Windows NT 4.0, you must use Computer Setup.Compaq Diagnostics for Windows is a system information and 
diagnostic utility that is used within the Windows operating system. Use\
 
Compaq Diagnostics for Windows to test system components and to 
display system information whenever possible.
l   
To configure a device in Windows 95 or 98 use the operating system itsel\
f. 
Windows 95 and 98 can be used to add and remove programs, and provide 
Wizards to ensure proper device drivers are installed. Diagnostics for 
Windows is NOT a configuration tool and might only test devices that are\
 
properly configured by the operating system.
NOTE: It is not necessary to configure a device connected to a USB 
connector on the computer or an optional docking base. 
						

							Using Computer Setup
All information and setting in Computer Setup are accessed from the File\
, 
Security, or Advanced menus. The items on each of these menus are 
described in this section. 
To use Computer Setup:Turn on or restart the computer.
1.  
When the blinking cursor appears in the upper-right corner of the 
screen, press  F10.2.  
To change the language,  press  F2.3.  
To view navigation information, press  F1.4.  
To return to the Computer Setup menu from anywhere in Computer 
Setup, press  ESC.5.  
Select the  File, Security , or Advanced  menu.6.  
To close Computer Setup and restart the computer: 
Select File->Save->Changes  and Exit, then press  Enter.
Select  File->Ignore  Changes  and Exit, then press  Enter.7.  
When you are prompted to confirm your action,  press F10 .8.  
 
Selecting from the File Menu
Use the following table as a reference in making selections from the Fil\
e Menu.
File Menu
SelectionsResulting Action
System informationAllows viewing of identification information about 
your computer, a docking base, and battery packs.
Save to floppySave system configuration to a formatted diskette.
Restore from floppyRestore system configuration from a diskette
Restore defaults
Replace configuration settings in Computer Setup 
with factory default settings (identification 
information is retained).
Ignore changes and 
exitCancel changes entered during the Computer Setup 
session, then exit and restart the computer
Save changes and 
exitSave changes entered during the current Computer 
Setup session, then exit and restart the computer
Selecting from the Security Menu
Use the following table as a reference in making selections from the Sec\
urity Menu.
Security MenuSelections Resulting Action
Setup passwordEnter, change , or delete  a setup password
Power-on passwordEnter, change , or delete  a power-on
password. 
						

							DriveLock passwordsEnable/disable  DriveLock; change a
Drive/Lock User or Master password.
Password optionsEnable/disable 
QuickLock 
QuickLock on Suspend 
QuckBlank 
Lock keyboard and mouse at power-on 
To enable Quicklock on Suspend or QuckBlank, 
Quicklock must be enabled first.
Device securityEnable/disable 
Ports or diskette drives 
Diskette write 
CD or diskette startup 
Settings for DVD can be entered in the CD 
field.
System IDsEnter identification numbers for the computer, 
a docking base, and battery packs.
Selecting from the Advanced Menu
Use the following table as a reference in making selections from the Adv\
anced Menu.
Advanced MenuSelections Resulting Action
Language (or press F2)Change the Computer Setup language
Boot optionsEnable/disable 
QuickBoot, which starts the computer more 
quickly by eliminating some startup tests. (If 
you suspect a memory failure and want to test 
memory automatically during startup, you may 
want to disable QuickBoot.) 
MultiBoot, which enables you to set a startup 
sequence that can include any drives and PCI 
network adapters in the system.
Device optionsEnable/disable the embedded numeric keypad 
at startup. 
Enable multiple standard pointing devices at 
startup, or disable this feature so the computer 
supports only a single pointing device at 
startup. 
Enable/disable USB legacy support for one USB 
mouse and one USB keyboard. 
Set an optional external monitor or overhead 
projector connector to a video card in a docking 
base as the primary device. 
Change the parallel port mode from EPP 
(default) to standard, bidirectional, EPP, or 
ECP.
Using Compaq Diagnostics for Windows
When you access Compaq Diagnostics for Windows, a scan of all system
components appears on the screen before the Compaq Diagnostic window opens. You can display more or less information from anywhere within 
						

							Compaq Diagnostics for Windows by selecting Level on the menu bar.
Compaq Diagnostics for Windows are designed to test Compaq components. 
Testing other components may be inconclusive.
Displaying System Information
To display system information: Select Start -> Settings -> Control Panel -> Compaq Diagnostics
1.  
Select Categories, then select a category from the drop-down list.2.  
To save the information, select  File -> Save As.3.  
To print the information, select  File -> Print.4.  
To close Compaq Diagnostics for Windows, select  File -> Exit.5.  
Running a Diagnostic Test
To run a diagnostic test:Select  Start ->Settings -> Control Panel -> Compaq Diagnostics .
1.  
Select the Test Tab.2.  
In the scroll box, select the category or device you wan to test.3.  
Select a test type. 
Quick Test runs a quick, general test on each device in a selected 
category. 
Complete Test performs maximum testing on each device in a selected 
category. 
Custom Test performs maximum on a selected device. 
To run all tests listed beneath your selection, select the Check All
button. 
To run only the tests you select, select the  Uncheck All  button, then
select the check box beside each test you want to run.4.  
Select a test mode. 
Interactive Mode provides maximum control over the testing process. 
You determine whether the test was passed or failed and may be 
prompted to insert or remove devices. 
Unattended Mode does not display prompts. If errors occur, they are 
displayed when testing is complete.5.  
Select the Begin Testing button.6.  
Access the test information. The view test information, select a 
report: 
Status tab provides a summary of tests run, passed and failed during 
the current testing session. 
Log tab provides a listing of tests run on your computer, the number of 
times each test has run, the number of errors found on each test, and 
the total run time of each test. 
Error tab provides a listing of all errors found on your computer with 
their error codes.7.  
To save 
Test information: Select the  Save button on the  Log tab.
Error reports: Select the  Save button on the  Error tab.8.  
To close Compaq Diagnostics for Windows,  select
File -> Select .9.   
						

							Click here to see Factory Default settings .
Return to the top.
  
						

							MAINTENANCE & SERVICE GUIDE
PROSIGNIA NOTEBOOK 190
INDEX PAGEPRODUCT DESCRIPTIONLEGAL NOTICEHOW TO USE THIS GUIDE
REMOVAL & REPLACEMENTILLUSTRATED PARTS CATALOGTROUBLESHOOTINGSPECIFICATIONS
Troubleshooting
Without Diagnostics
>Preliminaries
>Clearing
Password
>POST
>Compaq
Utilities
>Troubleshooting 
without 
Diagnostics
>Contacting
CompaqThis section provides information about how to identify and correct some\
 
common hardware, memory, and software problems. It also explains several\
 
types of messages that may be displayed on the screen. 
Since symptoms can appear to be similar, carefully match the symptoms of\
 
the computer malfunction against the problem description in the 
Troubleshooting tables to avoid a misdiagnosis. 
Before Replacing Parts 
When troubleshooting a problem, check the following items for possible 
solutions before replacing parts:
Verify that cables are connected properly to the suspected defective 
parts.l   
Verify that all required device drivers are installed.l   
Verify that all printer drivers have been installed for each application\
.l   
Obtaining Update Information with Info Messenger 
Compaq Info Messenger allows you to set a customized search of the Compa\
q 
Web site. By registering for this utility, you can stay up to date with \
software 
and hardware information specific to your system. 
Select the  Categories menu , then select a category from the drop-down list.
To access Compaq Info Messenger, go to  www.compaq.com and select Info
Messenger. 
To register, follow the instructions on the Info Messenger page. When yo\
ur 
registration is complete, you can
Implement your customized search whenever you prefer from the Info 
Messenger page.
l   
Set Info Messenger to send you the information by email as it becomes 
available.l   
Info Messenger will also inform you if there are updates to the system 
ROM for your computer.l   
Checklist for Solving Problems 
If you encounter a minor problem with the computer or software applicati\
ons,