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If any circuit boards or IC packages are to be stored
or transported, enclose them in conductive envelopes
and/or carriers . Remove the items from such enve-
lopes only with the above precautions; handle IC
packages without touching the contact pins .
Avoid circumstances that are likely to produce static
charges, such as wearing clothes of Synthetic mate-
rial, sitting on a plastic-covered or rubber-footed stool
(particularly while wearing wool), combing your hair,
or making extensive erasures. These circumstances
are most significant when the air is dry.
When testing static-sensitive devices, be sure dc
power is on before, during, and after application of
test signals. Be sure all pertinent voltages have been
switched off while boards or components are removed
or inserted, whether hard wired or plugged in.
The symbol shown below may appear on circuit
boards and/or schematic diagrams to call attention
to static sensitive component parts. However, the ab-
sence of such a symbol does NOT assure the absence
of static sensitive devices.
5.2 Customer Service
Our warranty (at the front of this manual) attests the
quality of materials and workmanship in our products.
If a malfunction does occur, our service engineers
are available for technical telephone assistance. If
the difficulty cannot be eliminated by use of the fol-
lowing service instructions, please contact IET and
provide information about any problems and steps
taken to remedy them. Describe the instrument by
model number and serial number.
Service and Maintenance
Products provided by IET Labs are thoroughly
tested and calibrated to meet product specifications.
A Certificate of Calibration (which certifies that the
product meets its specifications and that its calibration
is traceable to appropriate SI) is supplied.
5.3 Instrument Return
Before returning an instrument to IET Labs for ser-
vice, contact our sales department. See below.
5.3.1 Packaging
To safeguard your instrument during storage and
shipment, please use packaging that is adequate to
protect it from damage, i.e., equivalent to the original
packaging. Contract packaging companies in many
cities can provide dependable custom packaging on
short notice. Mark the box "Delicate Instrument."
5.3.2 Repair and Replacement of
Circuit Boards
This instruction manual contains information to guide
an experienced and skillful electronic technician in
fault-analysis and repair of some circuits in this instru-
ment. Contact IET Labs if additional help is required:
IET Labs, Inc
534 Main Street
Westbury, NY 11590
Phone: (800)899-8438
Fax: (516) 334-5988
Email: sales@ietlabs.com
1693 RLC Digibridge
111
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