User Guide
Table Of Contents
- Meeting your computer
- Troubleshooting and confirming setup
- Important safety information
- Conditions that require immediate action
- General safety guidelines
- Electrical current safety information
- Lithium battery notice
- Modem safety information
- Laser compliance statement
- Power supply statement
- Power cord notice
- Products with television tuner options installed
- Data safety
- Cleaning and maintenance
- Using headphones or earphones
- Plastic bag notice
- Tip-over hazard prevention notice
- Additional safety information
- Important safety information for service technicians
- Service and support information
- Lenovo limited warranty
- Notices
- Declaration
- Electronic emissions notices
- Regulatory information
- Compliance information
- China RoHS
- Taiwan RoHS
- Turkish statement of compliance
- Ukraine RoHS statement
- India RoHS statement
- Waste electrical and electronic equipment (WEEE) notices
- Eurasian compliance mark
- ENERGY STAR information
- Enabling ErP compliance mode
- Export Classification Notice
- Legal notices
-36-
The guide consists of a series of steps presented in a checklist. Begin the checks with
the power off, and the power cord disconnected.
Checklist:
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Power-off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector in good condition. Use a meter to measure third-
wire ground continuity for 0.1 ohm or less between the external ground pin and
frame ground.
b. The power cord should be the appropriate type as specified in the parts listings.
c. Insulation must not be frayed or worn.
4. Remove the cover.
5. Check for any obvious alterations. Use good judgment as to the safety of any
alterations.
6. Check inside the unit for any obvious unsafe conditions, such as metal filings,
contamination, water or other liquids, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Check that the power-supply cover fasteners (screws or rivets) have not been
removed or tampered with.
Handling electrostatic discharge-sensitive devices
Any computer part containing transistors or integrated circuits (ICs) should be
considered sensitive to electrostatic discharge (ESD). ESD damage can occur when
there is a difference in charge between objects. To protect against ESD damage,
equalize the charge between objects. Then, the machine, the part, the work mat, and
the person handling the part are all at the same charge.
Notes:
1. Use product-specific ESD procedures when they exceed the requirements noted
here.
2. Make sure that the ESD protective devices you use have been certified (ISO 9000)
as fully effective.
When handling ESD-sensitive parts:
• Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
• Avoidcontactwithotherpeoplewhilehandlingthepart.
• Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
• Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsa
charge even when you are wearing a wrist strap.
• Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.
The mat is especially useful when handling ESD-sensitive devices.
• Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthat