IBM ThinkPad 390 i Series 1700 (2626/2627) HMM - Revision history

Josh: Update links to IBM ThinkPad Notebooks (A/G/T/X) - Personal Systems Reference after page move

2026-10-01T18:25:11Z

Update links to IBM ThinkPad Notebooks (A/G/T/X) - Personal Systems Reference after page move

← Older revision		Revision as of 19:25, 1 October 2026
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	* [[IBM ThinkPad 390E Hardware Maintenance Manual]], [[IBM ThinkPad i Series 1400 1500 Hardware Maintenance Manual]]		* [[IBM ThinkPad 390E Hardware Maintenance Manual]], [[IBM ThinkPad i Series 1400 1500 Hardware Maintenance Manual]]
	* [[IBM ThinkPad Notebooks - Personal Systems Reference]] (machines withdrawn by January 2001) and [[IBM ThinkPad Notebooks (A/G/R/T/X) - Personal Systems Reference]] (A, G, T and X series withdrawn by May 2005), for model specifications by type-model		* [[IBM ThinkPad Notebooks - Personal Systems Reference]] (machines withdrawn by January 2001) and [[IBM ThinkPad Notebooks (A/G/T/X) - Personal Systems Reference]] (A, G, T and X series withdrawn by May 2005), for model specifications by type-model

	[[Category:IBM Service Manuals]]		[[Category:IBM Service Manuals]]
	[[Category:Service Manuals]]		[[Category:Service Manuals]]

Josh: Real contents and page numbers; power checkout limits; 10L9942 is the diagnostics diskette, not a manual

2026-09-30T21:58:58Z

Real contents and page numbers; power checkout limits; 10L9942 is the diagnostics diskette, not a manual

← Older revision		Revision as of 22:58, 30 September 2026
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	'''IBM Mobile Systems ~~—~~ ThinkPad 390 / i Series 1700 (2626, 2627) Hardware Maintenance Manual''', form number ~~'''~~S10L-9626-00~~'''~~, part number ~~'''~~10L9626~~'''~~, ~~'''~~First Edition (November 1998)~~'''.~~ 101 pages.		The '''IBM Mobile Systems ThinkPad 390/i Series 1700 (2626, 2627) Hardware Maintenance Manual''' is IBM's service manual for the ThinkPad 390 and the i Series 1700, form number S10L-9626-00, part number 10L9626, First Edition (November 1998), 101 pages. The title gives machine types 2626 and 2627. The later [[IBM ThinkPad 390E Hardware Maintenance Manual\|390E]] has its own manual.

	~~The ThinkPad 390 and the consumer i Series 1700 are the same hardware under two names and two machine types, which is why one manual serves both.~~		== Contents ==

	~~== What it contains ==~~		Page numbers are the manual's own.

	~~IBM's ThinkPad hardware maintenance manuals all follow~~ the ~~same plan~~, and ~~knowing it saves hunting~~:		* Introduction (pp. 1-16): error messages and POST error messages, drive and diskette compatibility matrix (p. 3), multilingual safety notices (p. 4), safety information (p. 11), laser compliance statement (p. 16).
			* Read this first (p. 19), including how to disable the password (p. 21); product overview, Fn keys and status indicators (pp. 21-23).
			* Checkout guide (p. 24): audio, diskette drive, CD-ROM, fan, keyboard, memory, modem, power system (p. 28) and TrackPoint; power management features (p. 31).
			* Symptom-to-FRU index (p. 33).
			* CE utility program diskette (p. 41): setting the LCD panel ID and thermal sensor, writing the VPD data, flashing the UUID; running the diagnostics (p. 42), including PQA system diagnostics.
			* FRU removals and replacements (pp. 47-82): battery, drives, combo bay, modem card, backup battery (p. 54), keyboard, CPU board, planar board (p. 64), and the LCD parts for the 12.1-, 13.3- and 14.1-inch panels; switch location (p. 82).
			* System unit parts listing (p. 83) and LCD unit parts listings by panel size (p. 88). Notices (p. 92).

	* '''About this manual~~''' and '''Introduction''' — the '''strategy for replacing FRUs''' (reinstall the original part if the replacement~~ does not fix the fault; if a machine has both a processor board and a system board, put the first one back before trying the second; remove multi-FRU assemblies one part at a time), how to use error messages, and the diskette compatibility matrix.		== What this manual does not contain ==
	* '''Safety information''' — general and electrical safety, the safety inspection guide, ESD handling, grounding requirements and the laser compliance statement, with the safety notices repeated in every supported language.
	* '''General descriptions''' and '''Related service information''' — restoring the preloaded system, '''passwords''' (including what can and cannot be cleared), and '''power management'''.
	* '''Checkout guide''' — testing the computer, detecting system information with PC-Doctor, and the '''power system checkout''': checking the AC adapter, operational charging, the main battery pack and the '''backup battery''', each with its own measurement.
	* '''Product overview''' — specifications, status indicators, FRU tests and the Fn key combinations.
	* '''Symptom-to-FRU index''' — numeric error codes, error messages, beep symptoms, '''LCD-related symptoms''', intermittent problems and undetermined problems.
	* '''FRU replacement notices''' — the '''screw notices''' (torque and thread-lock rules, which matter on magnesium frames) and retaining serial numbers.
	* '''Removing and replacing a FRU''' — the numbered 10xx sequence, which must be followed in order because later steps assume earlier ones.
	* '''Locations''' — front, rear and bottom views by machine type.
	* '''Parts list''' — FRU part numbers, including the keyboard and LCD part numbers by country and panel supplier.

	~~== What~~ it ~~does not contain ==~~		The manual works at FRU level. It has no schematics and no component values, and a system board is a single part number. The only capacitor it mentions is the "bulging capacitor" hazard in the safety inspection guide.

	'''Module level, and firmly so.''' These manuals name FRU part numbers, not component values. Across a typical ThinkPad maintenance manual the word "capacitor" appears '''once''', in the ESD handling note. There is '''no schematic, no board layout, no parts list below FRU level and no component data of any kind'''. A system board is one line item with one part number.		== What it settles ==

	~~That is IBM's service model, not a gap in~~ the ~~scan~~, and ~~it is why no ThinkPad on this wiki has~~ a ~~component~~-~~level capacitor list~~. ~~If you need a board-level repair on a ThinkPad~~, this manual ~~will tell you which board and how to get it out; it will not tell you what is on it~~.		The power system checkout (pp. 28-30) gives the AC adapter output as +14.5 to +17.0 V dc at pin 1, and treats a battery as discharged below 10.6 V (lithium-ion) or 9.6 V (NiMH), measured between terminals 1 and 7. There is no backup battery voltage check in this manual.

	~~== What it settles ==~~

	The ~~'''Related Publications''' table in the front matter is a useful cross-index in its own right: it lists the form and part numbers of the maintenance manuals for~~ the ThinkPad ~~300 (2615), 365 (2625), 380/385 (2635),~~ 390/i Series 1700 ~~(10L9942, S10L-9942), 500 (2603)~~ and ~~the rest of the range~~ as ~~they stood in 1998~~.		The related diskettes list (p. v) gives the ThinkPad 390/i Series 1700 diagnostic and utilities diskettes as part number 10L9942.

	<pdf> File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf </pdf>		<pdf> File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf </pdf>

	Download ~~it here~~: [[:File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf\|IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf]]		Download: [[:File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf\|IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf]]

	== Related pages ==		== Related pages ==

	* [[IBM ThinkPad 390E Hardware Maintenance Manual]] ~~— the later 390E (2626)~~		* [[IBM ThinkPad 390E Hardware Maintenance Manual]], [[IBM ThinkPad i Series 1400 1500 Hardware Maintenance Manual]]
	* [[IBM ThinkPad i Series 1400 1500 Hardware Maintenance Manual]]		* [[IBM ThinkPad Notebooks - Personal Systems Reference]] (machines withdrawn by January 2001) and [[IBM ThinkPad Notebooks (A/G/R/T/X) - Personal Systems Reference]] (A, G, T and X series withdrawn by May 2005), for model specifications by type-model
	* [[IBM ThinkPad Notebooks - Personal Systems Reference]] ~~·~~ [[IBM ThinkPad Notebooks (A/G/R/T/X) - Personal Systems Reference]] ~~—~~ for ~~identifying a machine from its~~ type-model ~~number~~

	[[Category:IBM Service Manuals]]		[[Category:IBM Service Manuals]]
	[[Category:Service Manuals]]		[[Category:Service Manuals]]

Josh: P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links

2026-09-24T23:17:14Z

P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links

@@ Line 1: / Line 1: @@
 <pdf> File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf </pdf>
-IBM ThinkPad 390 and i Series 1700 (machine types 2626 and 2627) Hardware Maintenance Manual.
+Download it here: [[:File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf|IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf]]
-Download the IBM ThinkPad 390 i Series 1700 (2626/2627) HMM here: [[:File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf]]
+* [[IBM ThinkPad 390E Hardware Maintenance Manual]] &mdash; the later 390E (2626)
 [[Category:IBM Service Manuals]]

Josh: Create page for IBM ThinkPad 390 i Series 1700 (2626/2627) HMM

2026-05-22T09:12:51Z

Create page for IBM ThinkPad 390 i Series 1700 (2626/2627) HMM

New page

<pdf> File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf </pdf>

IBM ThinkPad 390 and i Series 1700 (machine types 2626 and 2627) Hardware Maintenance Manual.

Download the IBM ThinkPad 390 i Series 1700 (2626/2627) HMM here: [[:File:IBM ThinkPad 390 i Series 1700 (2626 2627) HMM.pdf]]

[[Category:IBM Service Manuals]]