Grass Valley PDX 218 - Manual (Page 36)

Chapter 3 Service
3-2 PDX 218 Instruction Manual
Maintenance
There is no specifically required periodic maintenance for the PDX218. Cleaning the
exterior is on an “as needed” basis. Checking and cleaning or replacing the air filter
will depend on the operating environment. Procedures for doing these tasks are
discussed below.
WARNING: To avoid damage to the unit, if a liquid of any kind is spilled onto the
PDX218, immediately turn power Off and insure that both the inside and the
outside are completely dry before re-applying power.
Cleaning
Clean the PDX 218 often enough to prevent dust or dirt from accumulating. Dirt acts
as a thermal insulating blanket that prevents effective heat dissipation, and can
provide high-resistance electrical leakage paths between conductors or components in
a humid environment.
Exterior
Clean the dust from the outside by wiping with a soft cloth or small brush. A brush is
especially useful to remove dust from around the connectors. Hardened dirt may be
removed with a cloth dampened in water or a 50% isopropyl alcohol solution. Do not
use an abrasive cleaner.
Interior
Clean the interior by loosening accumulated dust with a dry, soft brush. Once the dirt
is loosened, remove it with low-pressure air (high-velocity air can damage some
parts). Remove hardened dirt or grease with a cotton-tipped applicator dampened with
a solution of mild detergent and water. Do not use an abrasive cleaner. If the circuit
board assembly must be removed for cleaning, follow the removal/replacement
instructions.
After cleaning, allow the interior to thoroughly dry before applying power to the unit.
CAUTION: Do not allow water to get inside any enclosed assembly or component.
Do not clean any plastic materials with organic cleaning solvents, such as benzene,
toluene, xylene, acetone, or similar compounds, because they may damage the
plastic.
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