IBM ThinkPad R40 Hardware Maintenance Manual
The IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual for the ThinkPad R40 is IBM's service manual, part number 92P1332, First Edition (February 2003), 178 pages.
IBM's scope statement is "IBM ThinkPad R40 product" (p. 1). The specifications and location views cover machine types 2681, 2682, 2683, 2684, 2685, 2722, 2723 and 2724, all under the name R40; types 2684 and 2685 have their own location views (pp. 131-133) and a Pentium 4-M 1.8 GHz or Celeron 1.7/1.8 GHz processor (p. 45). The name "R40e" does not appear in the manual, so check the machine type on the label against this list.
Contents
[edit | edit source]Page numbers are the manual's own.
- Introduction (pp. 3-22): strategy for replacing FRUs, error messages, diskette compatibility matrix, multilingual safety notices, safety information and the laser compliance statement.
- General descriptions (pp. 25-42): read this first, related service information including restoring the preloaded system, passwords (p. 30) and power management (p. 32); checkout guide (p. 36) with PC-Doctor and the power system checkout (p. 39).
- ThinkPad R40, from p. 43: product overview and specifications (p. 45), status indicators, FRU tests, Fn key combinations; symptom-to-FRU index (p. 53).
- FRU replacement notices (p. 60): screw notices and retaining serial numbers.
- Removing and replacing a FRU (pp. 63-126): numbered procedures from 1010 Battery pack (p. 64) to 2050 Antenna assembly, hinges and LCD cover (p. 124).
- Locations (p. 127, with separate views for machine types 2681-2683 and 2722-2724 and for 2684-2685) and parts list (p. 134, with the R40 series model matrix, LCD FRUs, keyboards, recovery CDs and AC adapters).
- Notices (p. 173).
What this manual does not contain
[edit | edit source]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.
What it settles
[edit | edit source]The power system checkout (pp. 39-41) gives these limits: AC adapter output +15.5 to +17.0 V dc at pin 1; battery pack +0 to +12.6 V dc between terminals 1 and 5, discharged if below +11.0 V dc, and 4 to 30 kΩ between terminals 4 and 5 if above it; backup battery +2.5 to +3.2 V dc on the red wire.
Download: IBM ThinkPad R40 Hardware Maintenance Manual.pdf