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Lenovo ThinkPad T420/T420i User Manual
This manual introduces the ThinkPad T420 and T420i laptops, describing the product overview, hardware locations, connectors, and key functions. It also covers ThinkVantage technologies, operating system access, and basic usage instructions.
Safety guidelines, maintenance procedures, component replacement, and detailed troubleshooting steps are provided to help users keep the notebook running reliably. The document includes instructions for battery care, power management, and how to obtain support and service from Lenovo. This manual is written in German.
Lenovo ThinkPad T42 specifications
| Processor (T40/T40p) | Intel Pentium M 1.3 GHz, 1‑MB L2 cache |
|---|---|
| Processor (T41/T41p) | Intel Pentium M 1.4 GHz, 1‑MB L2 cache |
| Processor (T42/T42p) | Intel Pentium M 1.5 GHz, 2‑MB L2 cache |
Source: Lenovo ThinkPad T40/T40p/T41/T41p/T42/T42p Hardware Maintenance Manual
All Lenovo ThinkPad T42 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
- Lenovo ThinkPad T420/T420i User Guide 273 p
- Lenovo ThinkPad T420/T420i User Manual 242 p
- Lenovo ThinkPad T420/T420i User Manual 246 p
- Lenovo ThinkPad T420 and T420i User Manual 270 p
- Lenovo ThinkPad T420/T420i User Guide 280 p
- Lenovo ThinkPad T420/T420i User Manual 280 p
- Lenovo ThinkPad T420/T420i User Manual 282 p
- Lenovo ThinkPad T420/T420i User Manual 282 p
- Lenovo ThinkPad T420/T420i User Manual 284 p
- Lenovo ThinkPad T420/T420i User Manual 292 p
- Lenovo ThinkPad T420 and T420i User Manual 272 p
- Lenovo ThinkPad T420/T420i User Manual 286 p
- Lenovo ThinkPad T420/T420i User Guide 282 p
- Lenovo ThinkPad T420i User Manual 266 p
- Lenovo ThinkPad T420/T420i User Guide 288 p
- Lenovo ThinkPad T420/T420i User Manual 285 p
- Lenovo ThinkPad T420/T420i User Manual 284 p
- Lenovo ThinkPad T420 and T420i User Guide 282 p
- Lenovo ThinkPad T420/T420i User Guide 290 p
- Lenovo ThinkPad T420/T420i User Manual 284 p
- Lenovo ThinkPad T420 and T420i User Manual 282 p
- Lenovo ThinkPad T420/T420i User Manual 301 p
- Lenovo ThinkPad T420/T420i User Manual 273 p
- Lenovo ThinkPad T420/T420i User Manual 275 p
- Lenovo ThinkPad T420/T420i User Manual 247 p
- Lenovo ThinkPad T420 and T420i User Guide 270 p
- Lenovo ThinkPad T420/T420i User Manual 244 p
Disassembly, diagnostics and part numbers, for repair.
Questions answered in these manuals
How can I protect myself from heat generated by the AC power adapter?
Do not place the AC power adapter in contact with any part of your body while it is in use.
What should I do if I see signs of overheating, smoke, or sparks?
Stop using the product and unplug it from the power source immediately.
How do I put the ThinkPad into sleep mode?
Press the Fn + F4 key combination to activate sleep (standby) mode.
How do I put the ThinkPad into hibernate mode?
Press the Fn + F12 key combination to activate hibernate mode.
How do I put the ThinkPad into sleep mode?
Press Fn + F12 to put the computer into sleep mode.
How do I put the ThinkPad into sleep mode?
Press Fn+F4 to place the computer in sleep (ready) mode.
