Editing HiNote Ultra Troubleshooting Guide

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[[File:Digital HiNote Ultra CS450.jpg|thumb|right|300px|HiNote Ultra CS450 (PhotographyEdits, CC BY-SA 4.0)]]
Fault-finding on the '''[[HiNote Ultra]]''' from chapter 6 and appendix B of DEC's ''Digital HiNote Ultra User's Guide'' (ER-P70WW-UA.A01), with Digital's 1997 note on battery packs that the computer no longer recognises.<ref name="ug6" /><ref name="ugb" /><ref name="readme" />

== DEC's first steps ==
# On battery: connect the AC adapter. If the amber light comes on, the pack is charging. If it does not, check the adapter and its connections.
# Press Ctrl+Alt+Del. If the machine does not start, turn it off, wait a few seconds and turn it on again.
# Note any error message and look it up below.
# Turn the computer over and press the reset button.
# Check the drivers for video, printer and applications, and run Setup ([Fn] + [F3]).
<ref name="ug6" />

== Beeps during use ==
Some beep patterns are warnings, not faults:<ref name="ug6b" />
{| class="wikitable styled-table" style="width:100%; text-align:left;"
|+ '''Warning beeps (DEC user's guide, p. 6-7)'''
! Beeps !! Meaning !! Action
|-
| Three beeps every 15 seconds || Low battery || Connect the AC adapter and charge
|-
| Three beeps every second || Battery very low || Save work and connect power at once, or let the machine suspend
|-
| Five beeps || CPU extreme temperature alert; the machine shuts itself down || Move the computer out of the hot place
|-
| Two short beeps on inserting a PC Card || Card inserted correctly || –
|}
<ref name="ug6b" /><ref name="ug6" />

== No power ==
{| class="wikitable styled-table" style="width:100%; text-align:left;"
|+ '''No response at power-on (from DEC Table, p. 6-4)'''
! Running on !! Possible cause !! Action
|-
| Battery || Pack discharged or faulty; machine hung; main logic board || Charge or replace the pack; open the keyboard assembly, press reset, close it and press the power button
|-
| AC adapter || Adapter not connected; no power at the outlet; main logic board || Check the adapter at both ends; test the outlet with another device
|}
<ref name="ug6n" />

If the amber charge light does not come on with the adapter connected and the battery gauge stays blank, the pack's protection circuit has probably tripped after a deep discharge. Digital's REVIVE.COM utility resets packs of revision 36-44194-01 B01; see [[HiNote Ultra Battery Service]].<ref name="readme" />

== POST messages ==
DEC's advice for almost every POST message is to reset the factory defaults in Setup and reboot, and to run Setup for configuration errors.<ref name="ugb" />
{| class="wikitable styled-table" style="width:100%; text-align:left;"
|+ '''POST and boot messages (DEC appendix B)'''
! Message !! Type !! DEC's action
|-
| Faulty refresh circuit; ROM checksum incorrect; CMOS RAM test failed; DMA controller failed; interrupt controller failed; faulty DMA page registers || Fatal || Reset factory defaults and reboot
|-
| RAM error at location ''nnnn'' || Fatal || Power off and on; reset factory defaults
|-
| Clock not ticking correctly || Fatal || Reset factory defaults; the real-time clock is not running
|-
| No bootable floppy drive 0 installed || Fatal || Power down, check connections and the Floppy Dock, run Setup; replace the drive
|-
| Keyboard controller failure; keyboard failure || Fatal || Reset factory defaults; the keyboard or its controller may have failed
|-
| CMOS failure; CMOS checksum invalid; unexpected amount of memory || Warning || Run Setup
|-
| Time/Date corrupt || Warning || Run Setup and set the date and time
|-
| No interrupts from timer 0 || Warning || Reset factory defaults
|-
| Floppy disk track 0 failed; floppy controller failed || Warning || Run Setup; check connections
|-
| Hard disk error, failure, not configured, controller error or failure || Warning || Run Setup; check connections
|}
<ref name="ugb" />
The CMOS RAM and clock are kept by a CR1220 coin cell while the machine is off (DEC specifies a Sanyo part only); check it if these messages return after every power-off.<ref name="ugw" />

== Beep codes ==
If POST cannot show a message it sounds a pattern of short (S) and long (L) beeps with pauses (P). DEC attributes fatal errors generally to the main logic board or an add-on part such as the memory module, BIOS or battery.<ref name="ugb4" />
{| class="wikitable styled-table" style="width:100%; text-align:center;"
|+ '''Fatal beep codes (DEC appendix B, p. B-4)'''
! Pattern !! Error
|-
| S S S P S S L P || DMA page registers faulty
|-
| S S S P S L S P || Faulty refresh circuit
|-
| S S S P S L L P || ROM checksum incorrect
|-
| S S S P L S S P || CMOS RAM test failed
|-
| S S S P L S L P || DMA controller faulty
|-
| S S S P L L S P || Interrupt controller failed
|-
| S S S P L L L P || Keyboard or keyboard controller failed
|-
| S S L P S S S P || Video controller failed
|-
| S S L P S S L P || No memory found, or memory controller failed
|}
<ref name="ugb4" />

== Other faults ==
{| class="wikitable styled-table" style="width:100%; text-align:left;"
|+ '''Other faults (from DEC chapter 6)'''
! Problem !! Possible cause !! Action
|-
| Faults after fitting a memory module || Module badly fitted or faulty || Refit or replace it, with the machine fully off
|-
| Will not boot from the hard disk || No operating system, disk not formatted or partitioned, or a diskette in drive A with "Drive A" first in Setup || Install or partition; remove the diskette
|-
| Will not boot from the Floppy Dock || "Drive C" first in Setup, no system files, empty or worn diskette, failed drive || Change the boot order in Setup; try another diskette
|-
| No response to the keyboard || Keyboard fault, or machine hung || Press reset on the underside, then the power button
|-
| Computer locks up || User or Supervisor password forgotten || DEC referred owners to its support line
|-
| Cursor erratic || Trackball dirty || Clean the trackball
|-
| No picture on the LCD || Brightness or contrast levers, suspend, LCD timer, CRT mode, screen saver || Adjust the levers; press the power button or a key; press [Fn] + [F4] until the LCD shows
|-
| No sound || Wrong IRQ or DMA, driver not loaded, volume || Set IRQ5 and DMA 1 in Setup; select the ESS driver; press [Fn] + [F7]
|}
<ref name="ug6n" /><ref name="ug6l" />

Warning from DEC: high voltages exist inside the LCD enclosure.<ref name="ug6l" />

== Related pages ==
* [[HiNote Ultra]]
* [[HiNote Ultra General Maintenance]]
* [[HiNote Ultra Battery Service]]
* [[Floppy Drive Repair]]
* [[Hard Drive Maintenance and Repair]]

== References ==
<references>
<ref name="ug6">Digital Equipment Corporation, ''Digital HiNote Ultra User's Guide'', ER-P70WW-UA.A01, November 1994, pp. 6-1 to 6-3 ([[:File:Digital HiNote Ultra User's Guide (ER-P70WW-UA.A01).pdf]]). Initial troubleshooting.</ref>
<ref name="ug6n">DEC, ER-P70WW-UA.A01, pp. 6-4 to 6-6. Notebook computer troubleshooting table.</ref>
<ref name="ug6b">DEC, ER-P70WW-UA.A01, p. 6-7. "If Your Notebook Computer Beeps".</ref>
<ref name="ug6l">DEC, ER-P70WW-UA.A01, pp. 6-12 to 6-13. LCD, audio and IR troubleshooting.</ref>
<ref name="ugb">DEC, ER-P70WW-UA.A01, pp. B-1 to B-3. POST and boot messages.</ref>
<ref name="ugb4">DEC, ER-P70WW-UA.A01, p. B-4. Beep codes.</ref>
<ref name="ugw">DEC, ER-P70WW-UA.A01, front matter. CR1220 clock battery.</ref>
<ref name="readme">Digital Equipment Corporation, README.TXT for REVIVE.COM, 18 February 1997, [https://archive.org/details/digital-hi-note-ultra-ct-450-battery-revive-utility archive.org].</ref>
</references>

[[Category:Digital Equipment Corporation]]
[[Category:Troubleshooting Guides]]