Static Electricity Precautions - Samsung HL67A750A1FXZA Service Manual

Precaution
1-3 Static Electricity Precautions
1. Some semi-conductive ("solid state") devices are vulnerable
to static electricity. These devices are known as ESD. ESD
includes the integrated circuit and the field effect transistor.
To avoid any materials damage from electrostatic shock,
follow the instructions described below.
2. Remove any static electricity from your body by connecting
the earth ground before handling any semi-conductive parts
or assemblies. Alternatively, wear a dischargeable wrist-
belt.
(Make sure to remove any static electricity before
connecting the power source - this is a safety instruction for
avoiding electric shock)
3. Remove the ESD assembly and place it on a conductive
surface such as aluminum foil to prevent accumulating
static electricity.
4. Do not use any Freon-based chemicals. Such chemicals
will generate static electricity that causes damage to the
ESD.
1-4
5. Use only grounded-tip irons for soldering purposes.
6. Use only anti-static solder removal devices.
Most solder removal devices do not support an anti-static
feature. A solder removal device without an anti-static
feature can store enough static electricity to cause damage
to the ESD.
7. Do not remove the ESD from the protective box until the
replacement is ready. Most ESD replacements are covered
with lead, which will cause a short to the entire unit due
to the conductive foam, aluminum foil or other conductive
materials.
8. Remove the protective material from the ESD replacement
lead immediately after connecting it to the chassis or circuit
assembly.
9. Take extreme caution in handling any uncovered ESD
replacements. Actions such as brushing clothes or lifting
your leg from the carpet floor can generate enough static
electricity to damage the ESD.
CAUTION
These servicing instructions are for use by qualified
service personnel only.
To reduce the risk of electric shock do not perform any
servicing other than that contained in the operating
instructions unless you are qualified to do so.
Samsung Electronics