Preventing Electrostatic Damage To Equipment; Preventing Damage To Drives - Compaq Presario 5UV430 Maintenance And Service Manual

OPTICAL AND MASS
STORAGE DEVICES
(CD, CD-RW and/or
DVD Drive, Hard Drive,
Disk Drive)
POWER SUPPLY
ASSEMBLY
FRONT I/O BOARD
SYSTEM BOARD
COMPONENTS
(RTC Battery,
Microprocessor/Heatsink
Assembly)
Removing DIPS from vinyl
trays
Removing DIPS from
Styrofoam
Removing bubble pack
from PCBs
Packing PCBs in
foam-lined box
NOTE: 700 volts can degrade a product.

Preventing Electrostatic Damage to Equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the
degree of sensitivity. The following proper packaging and grounding precautions are necessary
to prevent damage:
Protect all electrostatic parts and assemblies with conductive or approved containers or
1.
packaging.
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
2.
Place items on a grounded surface before removing them from their container.
3.
Always be properly grounded when touching a sensitive component or assembly.
4.
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or
5.
conductive foam.
Use transporters and conveyors made of antistatic belts and metal roller bushings. Mechanized
equipment used for moving materials must be wired to ground the proper materials selected to
avoid static charging. When grounding is not possible, use an ionizer to dissipate electric
charges.

Preventing Damage to Drives

To prevent static damage to hard drives, use the following precautions.
Handle drives gently, using static-guarding techniques.
1.
Store drives in the original shipping containers.
2.
Avoid dropping drives from any height onto any surface.
3.
11,500 V 4,000 V
14,500 V 5,000 V
26,000 V 20,000 V
21,000 V 11,000 V
2,000 V
3,500 V
7,000 V
5,000 V