Computer service manual findings

This page details the findings from computer service manuals (AKA technical manuals or hardware manuals), as these often list all the components used in the computer. A small number of these manuals indicate the keyboard vendor, or the part number of the switch used. In most cases, this information was never disclosed.

Computer	Manual	Success	Entry	Reference
Acorn BBC Master Series	British Broadcasting Corporation Master Series Microcomputer Service Manual	Negative	Not in parts list	chrisacorns.computinghistory.org.uk
ADDS CONSUL 980	Applied Data Digital Systems - How to maintain the CONSUL 980	Positive	(amongst a variety of other Cherry keyboard parts; paraphrased from PDF page 161) 1 × module, lighted: Cherry Elect. M41-0100 1 × module, space bar: Cherry Elect. M51-0106 78 × module, T: Cherry Elect. M61-0120 1 × module, shift: Cherry Elect. M61-0300 1 × module, lock: Cherry Elect. M61-0500 1 × module, lighted alt. action: Cherry Elect. M61-0800	archive.org
Apple III	Apple /// Level 2 Service Reference Manual	Positive	Alps switches given as "KCC" (momentary and alternate action) and "KFF" (double action) (series names only) on page 333; in addition, page 342 lists Datanetics switches, as DC51-31 (momentary), "DC51 ALT ACTION" and a heretofore undiscovered "DC51 DUAL ACTION"	ftp.apple.asimov.net
Atari CX85	CX85™ Numeric Keypad Field Service Manual	Neutral	Numeric Keypad Assy (Made in HI-TEK) Numeric Keypad Assy (Made by ATARI WONG)	atarimania.com
Atari 400/Atari 800	Field Service Manual, 400-800 Home Computer	Negative	KEYBOARD ASSY	atarimania.com
Atari 800XL	Service Manual for the Atari 800XL Computer	Negative	Keyboard	atarimania.com
Atari 1200 XL	1200 XL Home Computer Field Service Manual	Negative	Keyboard Assy	atarimania.com
Beehive MiniBee	MiniBee Computer Terminal Service Manual	Positive	Micro Switch SW10259 keyboard mechanism with schematics - On or around page 75	bitsavers.org
Canon Cat	Canon Cat (The Advanced WORK Processor) Workshop Manual	Negative	Switches listed only as "PUSH SWITCH"; some brands are noted, but SMK is not named	canoncat.net
CDC IST II	CDC® Information Systems Terminal II Hardware Maintenance Manual (Site and Support Information)	Positive	Additional part numbers for Hi-Tek High Profile (space bar stabiliser components) and an alternative set of instructions and images for contact replacement to those in Lear Siegler documentation; also given is the return spring weights, of 2 oz (normal) and 3 oz (space bar)	bitsavers.informatik.uni-stuttgart.de
CDC IST III	CDC® 40003-22/23 Information Systems Terminal Ⅲ Hardware Maintenance Manual (Site and Support Information)	Neutral	Page 6-69 (PDF page 260) provides an illustration of a Cherry gold crosspoint switch, but no further details appear to be provided.	bitsavers.informatik.uni-stuttgart.de
DEC VT100	VT100 Series Video Terminal Technical Manual	Negative	Not covered	loomcom.com
HP 9830A	9830A Calculator Service Manual	Negative	Keyboard Ass'y	www.hpmuseum.net
Lear Siegler ADM 3A	ADM 3A/3A+ Dumb Terminal® Video Display Unit Maintenance Manual, June 1983	Positive	Section 5.6.6 Removing and Replacing Key Switch Contacts notes (citing Hi-Tek 373-* part numbers): Insert the solid contact (P/N 373-30052-2) in the insertion tool with the bend to the outside and the solder end up (see figure 5-7). Insert the split contact (P/N 373-30053-2) with the split end in first (see figure 5-8).	bitsavers.trailing-edge.com
Lear Siegler ADM 36	ADM 36 Video Display Terminal Maintenance Manual, December 1982	Neutral	A Futaba keyboard was used, with a complicated linear switch depicted under switch replacement	bitsavers.trailing-edge.com
Memotech MTX 512	MTX 500/512 Service Manual & Technical Information	Positive	ML-3-CM (Futaba low-profile linear)	primrosebank.net
NABU 3100 (AKA Volker Craig VC3100)	NABU 3100 Service Manual	Positive	Plunger - Momentary, Hi-tek 173-40213 Plunger - Locking, Hi-tek 173-40334 Cam-locking, Hi-tek 173-40260 Spring - 2 oz, Hi-tek [sic] Contact-Solid, Hi-tek 173-30107 Contact-Fingered, Hi-tek 173-30108 Tool for Contact replacement, Hi-Tek 173-10023	bitsavers.informatik.uni-stuttgart.de
NEC PC-8201	Personal Computer Service Manual, PC-8201	Negative	KEY SWITCH (CURSOR), KEY SWITCH (PUSH), KEY SWITCH (LOCK): COMMON TO PC-8201 (JAPAN)	maben.homeip.net
Radio Shack TRS-80 Model III	Radio Shack Service Manual, TRS-80 Model III Microcomputer	Negative	Keyboard, 65-key	maben.homeip.net
Radio Shack TRS-80 Model 100	Radio Shack Service Manual, TRS-80 Model 100 Portable Computer	Neutral	SWITCH,KEY - PUSH, RS Part No. AS-7571, Mfr's Part No. SK0111X04A SWITCH,KEY - LOCK TYPE, RS Part No. AS-7572, Mfr's Part No. SK0111X05A	club100.org
Tandy 102	Tandy Service Manual, Tandy 102 Portable Computer	Neutral	Switch, Key - Push, RS Part No. AS-2911, Mfr's Part No. SK0111X12A Switch, Key - Lock, RS Part No. AS-2886, Mfr's Part No. SK0111X08A	vintagecomputer.net
Tandy 6000/6000HD	Tandy Service Manual, Tandy 6000/6000 HD	Negative	No meaningful details, unless there's a good reason why the switches are listed as capacitors, and the capacitors as switches …	bitsavers.informatik.uni-stuttgart.de
Tatung Einstein	Hardware Manual, Tatung Einstein Colour Micro Computer	Negative	Keyboard Assembly, Code No. 05-2006-3H	tatungeinstein.co.uk
Televideo TS 816	TeleVideo® TS 816 Maintenance Manual	Negative	Keyswitch, old part number KS123456, new part number 2199400 Keyswitch Alpha Lock, old part number KS123457, new part number 2199500	bitsavers.informatik.uni-stuttgart.de
Tiki 100	Kontiki-100 Teknisk Beskrivelse Rev.C, 1984	Positive	Sasse 200MN (Sasse 25 series)	djupdal.org
Volker Craig VC303	Volker Craig VC303 service manual	Negative	Not covered	classiccmp.org
Volker Craig VC4404	Volker Craig VC4404 service manual	Negative	Not covered	bitsavers.informatik.uni-stuttgart.de
Wyse WY-30	WY-30 Maintenance Manual	Negative	No useful information	bitsavers.informatik.uni-stuttgart.de
Wyse WY-50	WY-50/WY-50+ Maintenance Manual, 880020-01 Rev. B January 1986	Negative	No useful information	bitsavers.informatik.uni-stuttgart.de
Wyse WY-60	WI-60 Maintenance Manual Document, 880300-01 Rev. A, October 1986	Negative	"SWITCH, KEY" (part 340007-01), for just the 316X-Style Keyboard	bitsavers.informatik.uni-stuttgart.de
Wyse WYSEpc	WYSEpc. Maintenance Manual, Document 88-056-01	Positive	Keyboard with part number 10-011-01 matches up with the mystery Wyse keyboard with green Alps switches	bitsavers.informatik.uni-stuttgart.de
Xerox 6085 PCS	Xerox 6085 PCS Service Manual	Negative	110K00080 (Class A Part), 110K02020 (Class B Part), Keyboard Assembly (USO/XCI/RXAus) 110K00090 (Class A Part), 110K02030 (Class B Part), Keyboard Assembly (RX) 110K00880 (Class A Part), 110K02050 (Class B Part), Keyboard Assembly (XCI - French Canadian) 110K00100 (Class A Part), 110K02040 (Class B Part), Keyboard Assembly (Japanese Language) 110K00890 (Class A Part), Keyboard Assembly (AI)	bitsavers.trailing-edge.com