HP Omnibook 4000c Ct Service Manual

							___________41 Input/Output Configuration
Setting:Parameters:Default:CommentsPrinter portBi-directional; EPP; ECPBi-directionalIR Port AssignmentCOM2COM2IR is hard wired to
COM2Pointer deviceInternal; ExternalInternalExternal Fn. keyEnabled; DisabledEnabledDisplayLCD; CRT; LCD and
CRTLCDLCD gray scale8, 16, 6464.00Dimmed with color
display attachedDisplay modeNormal;InverseNormalDimmed with color
display attached 
						

							___________42 Disk Configuration
Setting:ParametersDefaultCommentsDiskette AEnabled; DisabledEnabledBoot fromFDD first; HDD onlyFDD firstHDD ConfigurationAuto; User definedAuto 
						

							___________43 Audio Configuration
The audio screen allows the user to adjust the speaker volume of the system.  The
user can also select the IRQ, I/O Address and DMA channel of the audio board.
Setting:ParametersDefaultCommentsVolume LeftSliderMiddleVolume RightSliderMiddleIRQIRQ5; IRQ7; IRQ9;
IRQ10IRQ7DMA channelDMA0; DMA1; DMA3DMA1 
						

							___________44 Troubleshooting and Repair
Known Hardware
IssuesThe OmniBook 4000C and CT will not charge the batteries while in ON
mode.
Certain HP Vectra PCs will not link over I/R with the OB 4000.  Refer to the
technical newsletter for details.
OmniBook Self-
TestThe complete self-test procedure is documented in the OmniBook 4000
Operating Guide.
A note about interpreting self-test results.
Self-test alone should not be used to diagnose a hardware problem.  If the self-
test results are absolutely clear and repeatable, confirm the results with at least
two other non-self-test failure symptoms.
The OmniBook 4000 BIOS includes a POST facility that tests a number of
hardware and firmware items in the unit at each cold-start (BOOT or RESET).
First POST:
BEEP CODESThese multiple beep codes indicate a failure in a simple test of:
a portion of base memory
Flash BIOS checksum
a portion of conventional memory
a portion of extended memory
If the unit fails to boot:
all accessories are removed, including memory cards, external floppy, port
expander, modems, PCMCIA cards, LAN cards, printers, VGA-out cables,
external pointing devices, clean AC power is provided (no chained battery
chargers or auto adapters), and press reset.
If the unit still fails to boot, it requires service.
Beep codes
Beep codes are used to identify a POST error that occurs when the screen is
not  available.  Once the screen is operating, diagnostic messages are
reported to the screen.  There are beep codes for both fatal and nonfatal
system board errors. 
						

							___________45 Beep CodeDescriptionnoneCPU register test in progress or failure.1-1-1CPU Failure1-1-3CMOS write/read test in progress or failure. Failure will result
in a system halt.1-1-4ROM BIOS checksum test in progress or failure.  Failure will
result in a system halt.  Checksum test - All of the values in a
given range of locations are added together.  The range
includes a location which, when added to sum of the ranges,
will produce a known result (0).  BIOS is in FLASH and can
only be fixed through replacement of the flash device (not a
field repairable item) Customer units should be returned for
repair.1-2-1Programmable interval timer 0 test in progress or failure.
Failure will result in a system1-2-2DMA channel 0 address and count register test in progress or
failure.  Failure will result in a system halt.1-2-3DMA page register write/read test in progress or failure.
Failure will result in a system halt.1-3-1RAM refresh verification test in progress or failure.  Failure will
result in a system halt.1-3-2SMI RAM Bad.  Failure will result in a system halt.noneFirst 64K RAM test in progress.  No specific test is performed
- just indicates that the test is beginning (i.e., no failure).1-3-3First 64K RAM chip or data line failure, multi-bit.  Failure
results in a system halt.1-4-2Parity failure first 64K RAM. Failure results in a system halt.2-1-1/2/3/4First 64K RAM chip or data line failure on bit x.  Failure results
in a system halt.2-2-1/2/3/42-3-1/2/3/42-4-1/2/3/43-1-1Slave DMA register test in progress or failure. Failure results
in a system halt. 
						

							___________46 3-1-2Master DMA register test in progress or failure.  Failure results
in a system halt.3-1-3Master interrupt mask register test in progress or failure.
Failure results in a system halt.3-1-4Slave interrupt mask register test in progress or failure.
Failure results in a system halt.3-2-4Keyboard controller test in progress or failure.  Failure results
in a system halt.3-3-4Screen memory test in progress or failure.  Failure will result
in a beep code but not a system halt.3-4-1Video Retrace Failure.3-4-2Screen retrace test in progress.3-4-3Screen retrace test  failure4-2-1Timer-tick interrupt test in progress or failure.  An error
message is displayed on the screen.  The system does not
halt.4-2-2Shutdown test in progress or failure.  If possible, the BIOS will
continue POST, skipping the memory tests.4-2-3Gate A20 failure. An error message is displayed on the screen
and the memory tests are suspended.  The system does not
halt.4-2-4Unexpected interrupt in protected mode. The system does not
half when an unexpected interrupt occurs.4-3-1RAM test of memory above 64K in progress or failure.  POST
will continue.4-3-2Programmable interval timer channel 2 test in progress or
failure.  POST will continue.4-3-4Real-time clock text in progress4-4-1Serial port test in progress or failure.  POST will continue.4-4-2Parallel port test in progress or failure.  POST will continue.4-4-3Math coprocessor test in progress or failure.  POST will
continue. 
						

							___________47 Last POST:
DISPLAY CODESThere are a number of POST tests that are performed after the BEEP Code
tests.  Failure of one or more of these tests will result in a displayed failure code
(i.e., 03044).  It is extremely important not to interpret a failure code immediately
as a hardware failure until:
all accessories are removed, including memory cards external floppy, port
expander, modems, PCMCIA cards, LAN cards, printers, VGA-out cables,
external pointing devices, clean AC power is provided (no chained battery
chargers or auto adapters), and press reset.
If the unit still fails to boot, it requires service.
NOTE:  make sure the display is adjusted to be visible.
PhoenixBIOS
POST Messages
(Power On Self
Test)Within POST, there are three kinds of messages:
Error messages: These messages appear when there is a failure in
hardware, software, or firmware.
Informational messages: These messages provide infon-nation to the user
but require no action.
Beep codes: This kind of warning sounds when POST errors occur and the
screen is not available.
Because the OmniBook cannot be repaired by a service center below the FRU
level, these messages will provided limited troubleshooting or repair information.
However, the support specialist and service technician will be able to identify
trends in repairs from these codes.
MessagePossible CauseDiskette drive failureThe 0 or 1 drive failed or is missing.Diskette drive x failure where x=O or x=1The designated drive has either failed or is missing.Diskette read failure - press Fl to retry boot (or may
also say, press Fl to retry boot, F2 for SETUP utility)The diskette is either not formatted or is defective.Display adapter failed; using alternateThe color/monochrome switch is set incorrectly.
The primary video adapter failed.Gate A20 failureThe keyboard controller is not accepting commands,
specifically, the enable and disableA20 commands.Fixed disk configuration errorThe specified configuration is not supported or
doesnt match the actual hardwareFixed disk controller failureThe controller card has failed.Fixed disk failureThe fixed disk may be defective. 
						

							___________48 Fixed disk read failure -press Fl to retry boot (or may
also say press Fl to retry boot, F2 for SETUP utility)The fixed disk may be configured incorrectly or is
defective.Internal cache test failed -cache is disabledFaulty cache memory in the 80486 processor chip.Pointer device failureThe mouse failed.No boot device available -Press Fl to retry boot (or
may also say, press Fl to retry boot, F2 for SETUP
utility)Either diskette drive A:, the fixed disk, or both the
diskette and disk are defective.MessagePossible CauseNo boot sector on fixed disk - press Fl to retry boot
(or may also say, press Fl to retry boot, F2 for
SETUP utility)The C: drive is not formatted or is not bootable.Not a boot diskette - press Fl to retry boot (or may
also say, press Fl to retry boot, F2 for SETUP utility)The diskette in drive A: is not formatted as a
bootable diskette.No timer tick interruptThe timer chip has failed.xxxxxh Option ROM checksum failure where xxxxxh
is the starting address of the option ROMThe peripheral card contains a defective ROM.Shutdown failureEither the keyboard controller is not accepting the
reset command or the associated reset logic has
failed.Time of day not set - run SETUP programClock not set.Timer 2 failureThe timer chip has failed.F2 to enter ROM-based SETUPInvalid configuration information must be changed.Invalid configuration  information - please run
SETUPDisplay adapter is configured incorrectly.  Memory
size is incorrect.  Wrong number of diskette drives.
Other configuration errors.Keyboard clock line failureThe keyboard, the keyboard cable connection, or
the keyboard controller is defective.Keyboard data line failure-The keyboard controller firmware has failed.Keyboard controller failureThe keyboard controller firmware has failed.Keyboard stuck key failureA key is jammed.Memory failure at hex-value, read hex-value,
expecting hex-valueCircuitry associated with the memory chips has
failed.Unexpected interrupt in protected modeHardware interrupt or NMI occurred while in
protected mode. 
						

							___________49 Real time clock failureThe RTC or battery failed.MessagePossible Causennnk Base MemoryThe amount of base memory that tested
successfully.nnnk ExtendedThe amount of extended memory that tested
successfully.Memory tests terminated by keystrokeThis message indicates that a user pressed the
spacebar while the memory tests were nmning and
stopped the memory tests.Press the Fl key to continueThis message indicates that an error was found
during POST.  Pressing the Fl key allows the
system to attempt to boot.Beginning memory test Press the SPACEBAR to
terminate the memory testA user can stop the memory tests by pressing the
spacebar.Press the Fl key to continue, F2 to nm the Setup
utilityThis message indicates that an error was found
during POST.  Pressing the Fl key allows the
system to attempt to boot.  Pressing F2 allows users
to run the ROM-based Phoenix SETUP utility to
correct configuration information. 
						

							___________50 Appendix A: Part NumbersDescriptionHP PartNumberExchange PartNumberRUBBER FOOT BACK FLATF1081-60933noneRUBBER FOOT FRONT ROUNDF1081-60934noneNAME PLATE FOR ENGRAVINGF1081-60936nonePALM REST SCREW FTB 1.7X4LF1081-60942noneMICRO PHONE ASSYF1081-60946noneOVERLAY-BACK PNLF1081-80004noneEXPANSION DOORF1081-60930noneTRACK BALL ASSYF1081-60914nonePALM REST ASSYF1081-60915noneICON ASSY FOR PEGASUSF1081-60916noneHOOK BUTTONF1081-60926noneIR LENSF1081-60927noneMEMORY COVER DOORF1081-60928nonePCMCIA DOORF1081-60929noneI/O DOORF1081-60931noneDOOR LATCH EXPANSION & I/OF1081-60932noneMODEL NAME PLATE 4000CF1081-60937noneMODEL NAME PLATE 4000CTF1081-60938noneDISPLAY/CHASSIS SCREW
ISOP M2.6x8LF1081-60939noneHDD SCREW ISOP M2.6X4L
EXTERNF1081-60940noneHDD SCREW ISOP M3X6L
INTERNF1081-60941noneHDD LABELF1081-60943noneHDD COVERF1081-60944noneHDD LATCHF1081-60945noneTHERMAL MOUNTING TAPEF1081-60947noneHARNESS TRACK BALLF1081-60948noneHARNESS SUB BAT-M/BF1081-60949noneINTEL INSIDE STICKERF1052-80013noneHDD SHIELDINGF1081-60950noneHDD SHIELDING FOR 260MBF1081-60951noneDISPLAY MODULE DSTNF1081-60902F1081-69002DISPLAY MODULE TFTF1088-60901F1088-69001HDD MODULE 260MBF1091-60901F1091-69001HDD MODULE 340MBF1092-60901F1092-69001HDD MODULE 520MBF1093-60901F1093-69001MEM MODULE 4MBF1076-60901F1076-69001MEM MODULE 8MBF1077-60901F1077-69001MEM MODULE 16MBF1078-60901F1078-69001FDD MODULEF1079-60901noneAC ADAPTERF1072-60901noneBATTERY PACKF1073-60901noneKEYBOARD USF1081-60904noneKEYBOARD UKF1081-60905none