MAINTENANCE
PREVENTIVE MAINTENANCE PROCEDURES
I-E96-506B1 6 - 7
needs of each circuit board. Remove all dust, dirt, oil, corrosion
or any other contaminant from the circuit board.
Do all cleaning and handling of the printed circuit boards at
static safe work stations. Always observe the steps in Special
Handling in Section 3 when handling printed circuit boards.
GENERAL CLEANING AND WASHING
If the printed circuit board needs minor cleaning, remove dust
and residue from the printed circuit board surface using clean,
dry, filtered compressed air or an antistatic field service vac-
uum cleaner.
An alternate method of washing the printed circuit board is:
1. Clean the printed circuit board by spraying or wiping the
board with isopropyl alcohol (99.5% electronic grade). Use a
foam tipped swab to apply the alcohol when wiping the board.
2. When the circuit board is clean, remove excess solvent by
using compressed air to blow it free of the circuit board.
EDGE CONNECTOR CLEANING
1. Use a solvent mixture of 80% isopropyl alcohol (99.5% elec-
tronic grade) and 20% distilled water.
2. Soak a lint free cloth with the solvent mixture.
3. Work the cloth back and forth parallel to the edge connec-
tor contacts.
4. Repeat with a clean cloth that is soaked with the solvent
mixture.
5. Dry the edge connector contact area by wiping with a clean
lint free cloth.
To clean tarnished or deeply stained edge connector contacts:
1. Use an Eberhard Faber (400A) pink pearl eraser or equiva-
lent to remove tarnish or stains. Fiberglass or nylon burnish-
ing brushes may also be used.
2. Minimize electrostatic discharge by using the 80/20 iso-
propyl alcohol/water solution during burnishing.
3. Do not use excessive force while burnishing. Use only
enough force to shine the contact surface. Inspect the edge
connector after cleaning to assure no loss of contact surface.
4. Wipe clean with a lint-free cloth.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
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