Handling Devices That Are Sensitive To Electrostatic Discharge - Lenovo 64608VU - ThinkPad T61 6460 Hardware Maintenance Manual

6. Check for any obvious non-ThinkPad alterations. Use good judgment as to the
7. Check inside the unit for any obvious unsafe conditions, such as metal filings,
8. Check for worn, frayed, or pinched cables.
9. Check that the power-supply cover fasteners (screws or rivets) have not been

Handling devices that are sensitive to electrostatic discharge

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. Protect against ESD damage by
equalizing the charge so that the machine, the part, the work mat, and the person
handling the part are all at the same charge.
When handling ESD-sensitive parts:
v Keep the parts in protective packages until they are inserted into the product.
v Avoid contact with other people.
v Wear a grounded wrist strap against your skin to eliminate static on your body.
v Prevent the part from touching your clothing. Most clothing is insulative and
v Use the black side of a grounded work mat to provide a static-free work surface.
v Select a grounding system, such as those listed below, to provide protection that
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ThinkPad T61, R61, and R61i (14.1-inch widescreen) Hardware Maintenance Manual
safety of any non-ThinkPad alterations.
contamination, water or other liquids, or signs of fire or smoke damage.
removed or tampered with.
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.
retains a charge even when you are wearing a wrist strap.
The mat is especially useful when handling ESD-sensitive devices.
meets the specific service requirement.
Note:
The use of a grounding system to guard against ESD damage is desirable but not
necessary.
– Attach the ESD ground clip to any frame ground, ground braid, or green-wire
ground.
– When working on a double-insulated or battery-operated system, use an ESD
common ground or reference point. You can use coax or connector-outside
shells on these systems.
– Use the round ground prong of the ac plug on ac-operated computers.