Tektronix TLA7AA Series, Service Manual

Page: 60 / 116

Maintenance
TLA7AXX/TLA7NAX Logic Analyzer Module Service Manual
6- 5
NOTE
. If, after performing steps 1 and 2, a module is clean upon inspection, skip
the remaining steps. If steps 1 and 2 do not remove all the dust or dirt, the
module may be spray washed using a solution of 75% isopropyl alcohol (see
steps 3 through 7).
3. Gain access to the parts to be cleaned by removing easily accessible shields
and panels (see
Removal and Installation Procedures on page 6--11).
4. Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for the
majority of the alcohol to evaporate.
5. Use warm (48.9
_
C to 60
_
C / 120
_
F to 140
_
F) deionized water to
thoroughly rinse the parts.
6. Dry all parts with low-pressure, deionized air.
7. Dry all components and assemblies in an oven or drying compartment using
low-temperature (51.7
_
C to 65.6
_
C / 125
_
F to 150
_
F) circulating air.
To clean the exterior surfaces of the probes, remove dirt and dust with a soft
brush. For more extensive cleaning, use only a damp cloth. Never use abrasive
cleaners or organic solvents
CAUTION.
Static discharge can damage any semiconductor component in the
probe head. Always wear a grounded antistatic wrist strap whenever handling
the probe head. Also verify that anything to which the probe head is connected
does not carry a static charge.
NOTE
. Never clean the elastomers. Always replace them instead. Refer to the
P68XX Series Logic Analyzer Probe Instruction Manual for information on
replacing the probe elastomers and other probe accessories.
Cleaning the Probes