HP Omnibook 300 425 430 530 Service Manual

65Paw Carrier (Paw Active)
(HP Authorized Service Providers Only)
Required Equipment
· Appropriate ESD station
· Torx #6 screwdriver
· Two small flat tip screwdrivers (or similar prying devices)
· Probe
Removal Procedure
1. Follow the Logic Board PCA Removal Procedure.
2. Remove the Mylar Mouse Shield.  Refer to the below illustration for location of components.
3. The Mouse Eject Arm and Eject Arm Spring may be removed at this point for convenience.
4. Gently bend the Pivot Bracket Tabs upward.  Take...

66Other Components
(HP Authorized Service Providers Only)
The below table list additional replaceable components and the disassembly procedure(s)
necessary to gain access to each.ComponentDisassemblyProcedure(s)EquipmentSpecial NotesTop CaseDisplay
KeyboardTorx #6 screwdriver
5mm hexdriver
Two flat tip screwdrivers
ProbeBottom CaseDisplay
Logic PCA Board
Paw CarrierTorx #6 screwdriver
5mm hexdriver
Two flat tip screwdrivers
ProbeMouse Button Latch
Mouse Latch SpringDisplayTorx #6 screwdriver
5mm...

67Appendix A - Technical and Resource
Specifications
Mass Storage Specifications40MB105MB131MBFlash DiskCards (Typical)Average seek< 19 ms19 ms19ms2-3 msTrack to Track
seek5  ms6 ms6 msNAAverage Latency6.67 ms6.72 ms6.72 msNARotational speed4503 rev/m4464 rev/m4464 rev/mNAData transfer
rate
Buffer to disc
Buffer to host13-21 Mbits /sec
4.5 Mbytes /sec11.4 - 19.2 Mbits/sec
4 Mbytes /sec11.4 - 19.2 Mbits/sec
4 Mbytes/sec2.5 MBytes/sec
6.0 MBytes/secBuffer size32 Kbytes static
RAM31 Kbytes31 KbytesNASpindle...

68Memory Map
Upper Memory Block Space
OB300/425OB430OB530UMB Space Available64k64k + 32k112k contiguousDOS Conventional Memory
OB300OB425OB430OB530Windows DOS Box
(with LapLink Remote)315 KB315505404Exit Windows (with out
LapLink Remote)435 KB435533437300/425430430ABCDEFVGA RAMVGA RAMPCMCIAUMB SPACEUMB
SPACEROM
DOSSYSTEM BIOSVGA BIOSVGA BIOSSYSTEM BIOSUMB SPACEPCMCIA 

69Appendix B - Power On Self Test Codes
Beep Codes
Beep Codes are used to identify a Power On Self Test (POST) error that
occurs when the screen is not available.  Once the screen is operational,
diagnostic messages are reported to the screen.  There are beep codes for
both fatal and nonfatal system board errors.
The codes are shown as x-y-z where 2-2-1 represents 2 beeps - pause - 2
beeps - pause - 1 beep.
Fatal Errors1-1-1CPU failure
1-1-3CMOS failure
1-1-4BIOS Checksum failure
1-2-18253 timer failure...

70Display Codes
There are a number of Power On Self Test (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 (such as 0240).
It is extremely important not to interpret a failure code immediately as a hardware failure.  The
failure should be confirmed with a clean boot.  A clean boot is defined as pressing the reset
button after removing all accessories (including memory cards, external floppy drive, modems,
PCMCIA...

710352hkbd not connected0353hno response from kbd test0354hkbd test failederror codes 0304, 0313-0314, 0321-0323, 0331-033C were
previously used
AUX Self Test Errors03E0hsend enable-aux cmd to 8042 cmd
byte failed03E1h8042 failed to accept write-aux-
device cmd03E2hwrite-aux-device cmd not sent by
804203E3hreset-aux cmd not accepted by 804203E4h8042 failed to send aux-interface-test03E5hno reply for aux-interface-test cmd
from 804203E6haux device clock line stuck low03E7haux device clock line stuck...

72Y = error type1300herror code displayed if fdc is not
configured properly1301herror code if board is not ready1302herror code if cmos says slot is empty
but a card is present in the slot1303herror code if cmos says slot does not
have board with readable id but can
read board id1304herror code if cmos id and board id do
not match1305herror code if incomplete configuration
bit is setMemory Configuration
(POST) Errors2000hbad port or wrong memory board2001hbad port or wrong board type2002hport reports...

73test (low 640k).
x = 64k bank no. with problem (i.e.
6204 = bank 4 is bad = address
range 40000h to 4ffffh)6300hI/O channel check came active during
write read test of protected mode ram
63xx = xx = 256k ram bank/block
with problemBIOS and Memory
Shadow-RAM Errors6500hshadow RAM BIOS failed6510hshadow RAM video BIOS failed6520hshadow RAM option ROM failed65A0hA000 shadow RAM test failed65B0hB000 shadow RAM test failed65C0hC000 shadow RAM test failed65D0hD000 shadow RAM test failed65E0hE000 shadow RAM...

740a004hFXCH or FCOMP didnt work0a005hFADD didnt work0a006hFMUL didnt work0a007hFDIV didnt work0a008hFSQRT didnt work0a009hFPATAN didnt work0a00ahinvalid operation exception err0a00bhdenormal operand exception error0a00chzero divide exception error0a00dhoverflow exception error0a00ehunderflow errorWeitek Numerical Co-
Processor Errors0af00hfailed to enter protected mode0af01hthere is no Weitek in the system0af02herror in Weitek data register0af05hADD didnt work0af06hMULT didnt work0af0ChZero Divide...