Apple Keyboard (M0116): Difference between revisions
Rebuild from Deskthority (photograph-backed) + Guide to the Macintosh Family Hardware ch.8. Corrected predecessor to M0110A; cable is detachable not fixed; deleted unsourced dimensions, weight, typing angle, 25/50 mA draw, switch force/travel/lifetime, Pantone 423C, plate thickness, Taiwan/Singapore/Ireland production split, quality-control and assembly narratives, ~500,000-unit production statistics and 2024 market values; replaced fabricated register-2 LED table with Apple Table 8-8 |
Update links to Apple Extended Keyboard after page move |
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{{Infobox computer peripheral | {{Infobox computer peripheral | ||
| name = Apple Keyboard | | name = Apple Keyboard | ||
| image = [[File:Apple (Standard) Keyboard M0116.jpg| | | image = [[File:Apple (Standard) Keyboard M0116.jpg|260px|frameless]] | ||
| caption = Apple Keyboard M0116 | | caption = Apple Keyboard M0116 | ||
| manufacturer = Apple Computer, Inc. | | manufacturer = Apple Computer, Inc. | ||
| type = Computer keyboard | | type = Computer keyboard | ||
| | | release_date = 1987 (with the [[Macintosh II]] and [[Macintosh SE]]) | ||
| discontinued = 1990 | | discontinued = 1990 | ||
| interface = [[Apple Desktop Bus]] | | interface = [[Apple Desktop Bus]] | ||
| compatible = | | compatible = ADB Macintosh models | ||
| predecessor = Apple M0110A | | predecessor = Apple M0110A ([[Macintosh Plus]] keyboard) | ||
| successor = [[ | | successor = [[Apple Keyboard II]] | ||
| model = M0116 (ANSI), M0118 (ISO) | | model = M0116 (ANSI), M0118 (ISO) | ||
| part_number = 661-0383 (service exchange) | |||
}} | }} | ||
<templatestyles src="Template:StyledTable/styles.css" /> | <templatestyles src="Template:StyledTable/styles.css" /> | ||
The '''Apple Keyboard''', | The '''Apple Keyboard''', often called the Apple Standard Keyboard to tell it apart from other Apple products of the same name, is a plate-mounted Alps SKCM keyboard introduced in 1987 with the [[Macintosh II]] and [[Macintosh SE]]. Those machines were sold without a keyboard, and buyers chose between this one and the larger [[Apple Extended Keyboard|Apple Extended Keyboard]]. It was made until 1990. Deskthority lists the Apple M0110A of the [[Macintosh Plus]] as its predecessor and the [[Apple Keyboard II]] as its successor.<ref name="dt">"Apple Keyboard" (Apple Standard Keyboard), [https://deskthority.net/wiki/Apple_Standard_Keyboard Deskthority wiki]. Community wiki, secondary source: models M0116 and M0118, FCC ID BCG6LWM0117; Alps SKCM Orange and Salmon switches with an Alps SKCL Lock for Caps Lock; plate mount; dye-sublimated PBT keycaps except the ABS space bar, legends bottom-left in italic Univers Condensed Thin; two bidirectional ADB ports and a detachable cable; layout identical to the Apple Desktop Bus Keyboard; the backwards-L Return key and the Control key left of A; M0118 ISO variant; serial numbers ending M0117; the sideways-mounted Alps power switch; 1987-1990 production; introduction with the Macintosh II and SE (citing an August 1987 Macworld advertisement); dimensions and weight (citing Apple Tech Info Library article 3504).</ref> | ||
Apple's service manual describes both of its 1987 ADB keyboards as having their own microcontroller and connecting to the Apple Desktop Bus.<ref name="v6">''Apple Service Technical Procedures, Volume Six'', part number 072-0062, June 1987. Macintosh II Basics (the two ADB keyboards and their microcontrollers); Macintosh SE Take-Apart, "Keyboard", pp. 2.39-2.40 (Mar 87), written for the Apple Keyboard; Macintosh SE Illustrated Parts List, Figure 9 and parts list, pp. IPL.16-IPL.17 (May 87). The keyboard pages are hosted as [[:File:Apple ADB Keyboards Technical Procedures (Macintosh SE).pdf]].</ref> | |||
== Layout == | == Layout == | ||
The layout is the same as that of the [[Apple Desktop Bus Keyboard]] for the [[Apple IIGS]]. It is the last Macintosh keyboard with a backwards-L-shaped Return key, as on the M0110A, and the only Macintosh keyboard with the Control key to the left of A, the Apple II position.<ref name="dt" /> | |||
The | The M0118 is the ISO variant, with a narrow Return key and Caps Lock and Control in their more usual positions. All known M0118s were made in Ireland or the USA, and both model numbers were sold with legends for many languages.<ref name="dt" /> The FCC ID is BCG6LWM0117 and the serial numbers recorded by Deskthority all end in "M0117"; no keyboard marked M0117 is known.<ref name="dt" /> | ||
Deskthority gives the dimensions as 16.5 × 5.6 × 1.8 inches (420 × 140 × 46 mm) and the weight as 2.125 lb (0.964 kg), citing Apple's Tech Info Library.<ref name="dt" /> | |||
== Switches and keycaps == | |||
The main keys use Alps SKCM Orange or SKCM Salmon switches, and Caps Lock uses an Alps SKCL Lock latching switch. The power key is a sideways-mounted Alps switch.<ref name="dt" /> Deskthority dates SKCM Orange to about 1987-1991 and lists it as the switch in most M0116 and M0118 keyboards.<ref name="orange">"Alps SKCM Orange", [https://deskthority.net/wiki/Alps_SKCM_Orange Deskthority wiki]. Community wiki: introduced about 1987, discontinued about 1991; found with and without the Alps logo; fitted to most Apple Standard Keyboards (M0116, M0118) and most Apple Extended Keyboards (M0115).</ref> | |||
The keycaps are dye-sublimated PBT, except the ABS space bar, with legends in the bottom-left corner in italic Univers Condensed Thin.<ref name="dt" /> | |||
The | |||
== | == Ports and cable == | ||
The keyboard has two bidirectional ADB ports; either can take the cable to the computer, and the mouse normally goes in the other. The cable is detachable.<ref name="dt" /> | |||
== | == ADB behaviour == | ||
Keyboards power up at ADB address $02, the address reserved for encoded devices.<ref name="gmfh">''Guide to the Macintosh Family Hardware'', second edition, Apple Computer, Inc. / Addison-Wesley, 1990, hosted as [[:File:Apple Guide to the Macintosh Family Hardware 2nd Edition 1990.pdf]]. Chapter 8, "Apple Desktop Bus": Table 8-1, ADB connector signals, p. 291; the 500 mA, 5 m, 100 pF per metre and three-device limits, p. 295; the Apple Standard Keyboard, Tables 8-7 and 8-8, registers 0 and 2, pp. 306-307; the 11 ms automatic Talk repeat, p. 313; Table 8-16, device addresses, p. 322.</ref> Register 0 holds up to two key transitions at a time: bit 15 is the status of the first key (0 = down) and bits 14-8 its key code, bit 7 the status of the second key and bits 6-0 its code. Register 2 holds only the modifier keys: Delete (bit 14), Caps Lock (13), Reset (12), Control (11), Shift (10), Option (9) and Command (8), with bits 7-0 reserved. There are no LED bits, because the keyboard has no lock LEDs.<ref name="gmfh" /> | |||
When idle, the computer's ADB transceiver repeats the last Talk command every 11 ms.<ref name="gmfh" /> | |||
The power key does not send an ADB code. On the Macintosh II family it momentarily grounds pin 2 (POWER.ON) of the ADB connector to pin 4 to switch the power supply on; on other Macintosh models pin 2 is not connected.<ref name="gmfh" /> ADB-to-USB adapters therefore have to treat the power key separately. | |||
The data line on pin 1 is open collector, pulled up to +5 V through 470 ohms on the computer's logic board; pin 3 is +5 V and pin 4 ground. All ADB devices together must draw no more than 500 mA; cables should be no longer than 5 m with no more than 100 pF per metre, and Apple recommends no more than three devices daisy-chained on one port.<ref name="gmfh" /> | |||
== Service == | |||
Apple serviced the keyboard as a complete exchange unit, 661-0383. Apple's instruction is not to remove the keyboard mechanism when exchanging the keyboard; send the whole unit without the cable, and remove the mechanism only to replace a keyswitch.<ref name="v6" /> | |||
= | To open it, following Apple's procedure for the Apple Keyboard:<ref name="v6" /> | ||
# Disconnect the keyboard from the computer and remove the cable. | |||
# Work on a grounded workbench pad with a wrist strap. | |||
# Remove the three Phillips screws from the back and lift off the top cover. | |||
# Note how the small breakaway boards carrying the ADB connectors fit into the upper corners of the bottom case, then lift the mechanical assembly out. | |||
# To reassemble, place the assembly in the bottom case with the breakaway boards upright in their slots, engage the top cover's teeth on the front edge of the bottom case and its guide posts in the holes, then turn the keyboard over and fit the three screws. | |||
{| class="wikitable styled-table" | |||
|+'''Apple Keyboard service parts (Macintosh SE parts list, Figure 9)''' | |||
|- | |||
! Part number !! Description | |||
|- | |||
| 661-0383 || Apple Keyboard | |||
|- | |||
| 815-1016 || Top case | |||
|- | |||
| 658-7010 || Key cap set | |||
|- | |||
| 076-0209 || Keyswitch set | |||
|- | |||
| 815-1017 || Case bottom | |||
|- | |||
| 970-1263 || Alps locking keyswitch | |||
|- | |||
| 590-0361 || Cable, keyboard | |||
|} | |||
<ref name="v6" /> | |||
== | The Caps Lock position needs the latching Alps SKCL Lock switch, which Apple listed as the Alps locking keyswitch, 970-1263.<ref name="dt" /><ref name="v6" /> | ||
For a keyboard that does nothing, check +5 V between pins 3 and 4 of the computer's ADB port, and try another cable and another ADB machine; the cable is detachable.<ref name="gmfh" /><ref name="dt" /> | |||
== Things that are not faults == | |||
* The power key does nothing on the Macintosh SE and other Macintosh models outside the Macintosh II family, where ADB pin 2 is not connected.<ref name="gmfh" /> | |||
== | == Related pages == | ||
* [[Apple Desktop Bus]] | * [[Apple Desktop Bus]] | ||
* [[Apple Keyboard|Apple Extended Keyboard]] | * [[Apple Extended Keyboard|Apple Extended Keyboard]] | ||
* [[Apple | * [[Apple Keyboard II]] | ||
* [[Apple Desktop Bus Keyboard]] | * [[Apple Desktop Bus Keyboard]] | ||
* [[Macintosh II]] | * [[Macintosh II]] | ||
* [[Macintosh SE]] | * [[Macintosh SE]] | ||
* [[Apple ADB Keyboards Technical Procedures (Macintosh SE)]] | |||
== References == | == References == | ||
<references /> | <references /> | ||