Apple Lisa 2: Difference between revisions
Remove the unsourced 65 ms Widget seek time and the invented 394-590 RPM range; cite Apple's hard disk assembly part number |
Collapse duplicated <ref name=...> definitions to a single definition with the rest self-closing (duplicate definitions render as a visible red cite error) |
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* 10 MB capacity (compared to 5 MB ProFile) | * 10 MB capacity (compared to 5 MB ProFile) | ||
* Integrated controller board | * Integrated controller board | ||
* Connected on the parallel interface, which is why the Lisa 2/10 has no external parallel port. Apple lists the whole thing as hard disk assembly '''661-93176'''<ref name="lisal1" /> | * Connected on the parallel interface, which is why the Lisa 2/10 has no external parallel port. Apple lists the whole thing as hard disk assembly '''661-93176'''<ref name="lisal1">Apple Computer, ''Apple Lisa Level 1 Technical Procedures'' (hosted here: [[Apple Lisa Level 1 Technical Procedures Mar85]]): Lisa Set-up section 2.6 "Checking the Battery Switch"; Lisa 2 Diagnostics section 5 "Interpreting the Boot ROM"; Lisa Troubleshooting Guide section 6 and Appendix D "Start-up Error Codes"; Video Repair Procedures; and the Lisa 1, Lisa 2, Lisa 2/5, Lisa 2/10 and Macintosh XL Illustrated Parts Lists.</ref> | ||
* Built-in diagnostics ROM | * Built-in diagnostics ROM | ||
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! Port !! Notes | ! Port !! Notes | ||
|- | |- | ||
| Serial A, Serial B || '''RS-232''', DB-25. Apple's error codes call them "RS232 port A" and "RS232 port B" (codes 55 and 56)<ref name="lisal1" | | Serial A, Serial B || '''RS-232''', DB-25. Apple's error codes call them "RS232 port A" and "RS232 port B" (codes 55 and 56)<ref name="lisal1" /> | ||
|- | |- | ||
| Parallel || For a ProFile or a dot-matrix printer. '''Absent on the Lisa 2/10''', where it is used internally for the Widget; a Parallel Interface Card in an expansion slot restores it<ref name="lisal1" | | Parallel || For a ProFile or a dot-matrix printer. '''Absent on the Lisa 2/10''', where it is used internally for the Widget; a Parallel Interface Card in an expansion slot restores it<ref name="lisal1" /> | ||
|- | |- | ||
| Mouse || DE-9 | | Mouse || DE-9 | ||
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The premium configuration featured: | The premium configuration featured: | ||
* '''One''' 3.5″ floppy drive — Apple's service manual states plainly that "Lisa 2, 2/5, and | * '''One''' 3.5″ floppy drive — Apple's service manual states plainly that "Lisa 2, 2/5, and | ||
2/10 have only one disk drive"<ref name="lisal1" | 2/10 have only one disk drive"<ref name="lisal1" /> | ||
* Internal Widget 10 MB hard drive | * Internal Widget 10 MB hard drive | ||
* 512 KB RAM standard | * 512 KB RAM standard | ||
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section prints line drawings distinguishing the three machines by what is attached — a bare | section prints line drawings distinguishing the three machines by what is attached — a bare | ||
3.5-inch Microdisk drive (Lisa 2), that drive plus an external 5 MB ProFile (Lisa 2/5), or that | 3.5-inch Microdisk drive (Lisa 2), that drive plus an external 5 MB ProFile (Lisa 2/5), or that | ||
drive plus a built-in 10 MB hard disk (Lisa 2/10).<ref name="lisal1" | drive plus a built-in 10 MB hard disk (Lisa 2/10).<ref name="lisal1" /> Page 3 of the | ||
[[Apple Lisa 2 Owners Guide 1984]] is Apple's customer-facing version of the same question. | [[Apple Lisa 2 Owners Guide 1984]] is Apple's customer-facing version of the same question. | ||
A further check: '''the Lisa 2/10 I/O board has no switch''' where the earlier boards do.<ref name="lisal1" | A further check: '''the Lisa 2/10 I/O board has no switch''' where the earlier boards do.<ref name="lisal1" /> | ||
Serial-number prefix ranges previously listed here could not be traced to any Apple document and | Serial-number prefix ranges previously listed here could not be traced to any Apple document and | ||
| Line 174: | Line 174: | ||
== Apple's start-up self-test == | == Apple's start-up self-test == | ||
On power-up the Lisa runs a self-test from the boot ROM on the CPU board. Apple's own | On power-up the Lisa runs a self-test from the boot ROM on the CPU board. Apple's own | ||
description of what should happen:<ref name="lisal1" | description of what should happen:<ref name="lisal1" /> | ||
# The on/off lamp lights. | # The on/off lamp lights. | ||
| Line 187: | Line 187: | ||
'''Thirty seconds of blank screen is normal.''' Apple's own flowchart only sends the reader to | '''Thirty seconds of blank screen is normal.''' Apple's own flowchart only sends the reader to | ||
the video repair procedures if there is '''no''' picture after 30 seconds.<ref name="lisal1" | the video repair procedures if there is '''no''' picture after 30 seconds.<ref name="lisal1" /> | ||
'''LisaTest needs two memory boards fitted''' to run at all, in any Lisa 2 configuration, and | '''LisaTest needs two memory boards fitted''' to run at all, in any Lisa 2 configuration, and | ||
'''APPLE-SHIFT-S''' switches it from Customer Level to Service Level, where individual modules | '''APPLE-SHIFT-S''' switches it from Customer Level to Service Level, where individual modules | ||
can be tested.<ref name="lisal1" | can be tested.<ref name="lisal1" /> | ||
{| class="wikitable styled-table" style="width:95%;" | {| class="wikitable styled-table" style="width:95%;" | ||
|+'''Apple's start-up error codes — Appendix D, Lisa Troubleshooting Guide'''<ref name="lisal1" | |+'''Apple's start-up error codes — Appendix D, Lisa Troubleshooting Guide'''<ref name="lisal1" /> | ||
! Code !! Apple's description !! Apple's action, in order | ! Code !! Apple's description !! Apple's action, in order | ||
|- | |- | ||
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'''There are no codes in the 10s, and none between 60 and 70.''' A banded table of the form | '''There are no codes in the 10s, and none between 60 and 70.''' A banded table of the form | ||
"10–19 = CPU board, 20–29 = I/O board" was previously published here and is not Apple's: 22, | "10–19 = CPU board, 20–29 = I/O board" was previously published here and is not Apple's: 22, | ||
23 and 25 are diskette-handling failures, and the CPU-board codes are 40–49.<ref name="lisal1" | 23 and 25 are diskette-handling failures, and the CPU-board codes are 40–49.<ref name="lisal1" /> | ||
== Apple part numbers == | == Apple part numbers == | ||
{| class="wikitable styled-table" style="width:95%;" | {| class="wikitable styled-table" style="width:95%;" | ||
|+'''Apple part numbers, from the Illustrated Parts Lists'''<ref name="lisal1" | |+'''Apple part numbers, from the Illustrated Parts Lists'''<ref name="lisal1" /> | ||
! Assembly !! Lisa 1 / Lisa 2 !! Lisa 2/5 !! Lisa 2/10 and Macintosh XL | ! Assembly !! Lisa 1 / Lisa 2 !! Lisa 2/5 !! Lisa 2/10 and Macintosh XL | ||
|- | |- | ||
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different part, '''661-73172''' against '''661-93108''' for the Lisa 1 and Lisa 2. So is the | different part, '''661-73172''' against '''661-93108''' for the Lisa 1 and Lisa 2. So is the | ||
motherboard and so is the I/O board. Current ratings quoted elsewhere for these two supplies | motherboard and so is the I/O board. Current ratings quoted elsewhere for these two supplies | ||
could not be sourced and are not given here.<ref name="lisal1" | could not be sourced and are not given here.<ref name="lisal1" /> | ||
== Common Issues and Maintenance == | == Common Issues and Maintenance == | ||
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* '''Apple publishes no rail tolerance and no voltage-adjustment procedure for the Lisa.''' The | * '''Apple publishes no rail tolerance and no voltage-adjustment procedure for the Lisa.''' The | ||
Level 1 procedures cover video adjustments — horizontal phase, brightness and contrast, yoke | Level 1 procedures cover video adjustments — horizontal phase, brightness and contrast, yoke | ||
and trim magnets — and nothing else.<ref name="lisal1" | and trim magnets — and nothing else.<ref name="lisal1" /> Designators for "+5 V" and "+12 V" adjustment | ||
potentiometers were previously given here; they are not in any Apple document held and have | potentiometers were previously given here; they are not in any Apple document held and have | ||
been removed rather than left for someone to turn. | been removed rather than left for someone to turn. | ||
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trips (turns off and on)"''' as symptoms whose first two remedies are '''brightness and | trips (turns off and on)"''' as symptoms whose first two remedies are '''brightness and | ||
contrast adjustment''', before replacing the supply, video board or flyback — so a tripping | contrast adjustment''', before replacing the supply, video board or flyback — so a tripping | ||
supply on a Lisa is not automatically a supply fault.<ref name="lisal1" | supply on a Lisa is not automatically a supply fault.<ref name="lisal1" /> | ||
=== Widget Drive Failures === | === Widget Drive Failures === | ||