When servicing any component, wear clean cotton gloves.
If making solder repairs on a circuit board, use an OA-based (organically activated) flux. Remove the flux
from the work areas when the repair is complete. Use pure water along with plenty of clean cotton swabs or
a clean soft brush to remove the flux. Take care not to spread the flux to other areas of the components.
Once the flux is removed, swab only the repaired area with methanol, then blowdry the board with dry
nitrogen gas.
After cleaning, place the components in a 50°C low humidity environment for several hours before use.
Special handling of static-sensitive devices
CAUTION
System components can be damaged by electrostatic discharge (ESD). Wear
a ground strap and attach the clip lead to the grounding bar in the test head
or the system cabinet frame before working on the unit. Assume all parts are
static sensitive.
High impedance devices are subject to possible static discharge damage because of the high impedance levels
involved. When handling such devices, assume all parts are static sensitive:
Such components should be transported and handled only in containers specially designed to prevent or
dissipate static buildup. Typically, these components will be received in anti-static containers made of
plastic or foam. Keep these parts in their original containers until ready for installation or use.
Remove the components from their protective containers only at a properly grounded workstation. Also,
ground yourself with an appropriate wrist strap while working with these components.
Handle the connectors only by their bodies. Do not touch the boards, pins, or terminals.
Any printed circuit board into which the device is to be inserted must first be grounded to the bench or
table.
Use only anti-static type de-soldering tools and grounded-tip soldering irons.
Electrical hazard tasks
This section contains a listing by type of energized electrical hot work tasks for type 3 or higher electrical hazard
tasks. Refer to the specific diagnostics, troubleshooting, or maintenance section for specific written instructions.
Type 4 or Type 5: Live circuit tests
Live circuit tests are classified as Type 4 or Type 5 energized electrical hot work dependent on the particular circuit
tested. Type 4 classification means that the equipment is energized. Live circuits are exposed and accidental
contact is possible. Voltage potentials are greater than 30 volts RMS, 42.2 volts peak, 240 volt-amps, 20 joules or
contains radio frequency (RF). Type 5 classification means that the equipment is energized and measurements and
adjustments require physical entry into the equipment or equipment configuration will not allow the use of clamp-on
probes.
Replacement
Manuals included with the system cover the individual operation and maintenance of the instruments, card file and
cards.
Heavy instrument removal/installation
When installing or removing equipment over 50 lbs, use a mechanical lifting device such as the Presto Device
Model M466 or equal (Figure 2). If there is an instrument mounted below the heavy instrument, it must be removed
to provide clearance for the lifting forks. Refer to the lifting device operating manual for proper usage.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com
