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IBM ThinkPad X40 Hardware Maintenance Manual

From RetroTechCollection

The ThinkPad Computer Hardware Maintenance Manual of September 2005 is the hardware maintenance manual for the ThinkPad X40 series, part number 39T5972, First Edition (September 2005). The PDF has 152 pages: four front pages, 147 numbered pages and the back cover, which carries the part number.

The title page lists one product: ThinkPad X40 Series (machine types 2369, 2370, 2371, 2372, 2382 and 2386). No dock is listed on the cover, but the specifications and the locations section cover the X4 UltraBase Dock. The edition notice reads "© Copyright Lenovo 2005. Portions © Copyright International Business Machines Corporation 2005", so this is a Lenovo publication for an IBM-branded machine.

Contents

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Page numbers are the manual's own.

  • About this manual (p. 1).
  • Introduction (pp. 3-26): strategy for replacing FRUs and hard disk drives, how to use error messages (pp. 3-4); strategy for replacing FRUs on configure-to-order (CTO), custom model variant (CMV) and general announce variant (GAV) machines (pp. 4-7); replacing RoHS-compliant FRUs (p. 7); diskette compatibility matrix (p. 8); safety notices in English, French, German, Hebrew, Italian and Spanish (pp. 8-19); general and electrical safety, safety inspection guide, handling of electrostatic discharge-sensitive devices, grounding requirements (pp. 20-25); laser compliance statement (p. 26).
  • General descriptions (pp. 29-49): what to do first (p. 29); service web site, restoring the preloaded system (p. 31) and recovering the hard disk to original contents (p. 34); passwords (p. 37); power management (p. 39); checkout guide, testing the computer and PC-Doctor (pp. 42-46); power system checkout (pp. 46-49).
  • ThinkPad X40 series (from p. 51): specifications (p. 53), status indicators (p. 55), FRU tests (p. 57), Fn key combinations (p. 59); symptom-to-FRU index with numeric error codes, error messages, beep and no-beep symptoms, LCD-related, intermittent and undetermined problems (pp. 61-72); FRU replacement notices, covering screw notices and retaining serial numbers (pp. 73-74).
  • Removing and replacing a FRU (pp. 77-113): numbered procedures 1010 Battery pack to 1120 Fansink and 2010 LCD bezel to 2060 Bluetooth antenna cable. The backup battery is 1070 (p. 90), reached after removing the battery pack, hard disk drive, DIMM cover and keyboard.
  • Locations (pp. 114-118): front, rear and bottom views of the X40, and front and rear views of the X4 UltraBase Dock.
  • Parts list (pp. 119-144): overall FRU list (p. 119), LCD FRUs (p. 134), keyboards (p. 136), recovery CDs (p. 138), miscellaneous parts (p. 141), common parts list (p. 142).
  • Notices (p. 145) and trademarks (p. 147).

Like the July 2005 X30/X31/X32 manual, this edition has no model matrix; FRUs for a particular machine are identified through the CTO, CMV and GAV procedure (pp. 4-7).

What this manual does not contain

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The manual works at FRU level. There are no schematics, no board layouts and no component values. The only capacitor mentioned is the "bulging capacitor" hazard in the safety inspection guide (p. 23).

What it settles

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The X40 battery pack is checked against different limits from the X30 and X31. The power system checkout (pp. 46-49) gives:

Power system checkout, ThinkPad X40 (pp. 47-49)
Item Measured at Correct reading
AC adapter Pin 1 to pin 2 (ground) of the adapter plug +15.5 to +17.0 V dc
Battery pack Terminal 1 (+) to terminal 5 (−) +0 to +16.8 V dc; discharged if below +14.4 V
Battery pack, above +14.4 V Resistance between terminals 4 and 5 4 to 30 kΩ
Backup battery Red wire (+) to black wire +2.5 to +3.2 V dc

The specifications (pp. 53-54) list Pentium M processors from 1.0 to 1.6 GHz, 256 MB or 512 MB of memory on board with one PC2700 SO-DIMM slot, Intel 855GME graphics, a 12.1-inch XGA panel, and a 1.8-inch IDE hard disk of 20, 40 or 60 GB.

The screw notices (p. 73) specify nylon-coated screws, used only once; the screw pack is P/N 13N5323 (p. 141). After a system board replacement the serial number must be written back with the ThinkPad Hardware Maintenance Diskette version 1.71 or later (p. 74).

Download: IBM ThinkPad X40 Hardware Maintenance Manual.pdf

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