Maintenance
4–2
TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual
WARNING.
To avoid electric shock, always power off the chassis and disconnect
the power cord before cleaning or servicing the chassis.
Inspection and Cleaning
The chassis is inspected mechanically and electrically before shipment. It should
be free of marks or scratches and should meet or exceed all electrical specifica-
tions. To confirm this, inspect the chassis for physical damage incurred during
transit. Retain the chassis packaging in case shipment for repair is necessary. If
there is damage or deficiency, contact your local Tektronix representative.
Cleaning procedures consist of exterior and interior cleaning of the chassis.
Periodic cleaning reduces instrument breakdown and increases reliability. Clean
the chassis as needed, based on the operating environment. Refer to your module
documentation for information on cleaning the individual TLA 700 Series
modules.
Use a dry, low-velocity stream of air to clean the interior of the chassis. Use a
soft-bristle brush for cleaning around components. If you must use a liquid for
minor interior cleaning, use a 75% isopropyl alcohol solution and rinse with
deionized water.
Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-
bristle brush. If any dirt remains, use a cloth or swab dipped in a 75% isopropyl
alcohol solution. Use a swab to clean narrow spaces around controls and
connectors. Do not use abrasive compounds on any part of the chassis.
CAUTION.
Avoid getting moisture inside the chassis during exterior cleaning; use
just enough moisture to dampen the cloth or swab.
Do not wash the front-panel On/Standby switch. Cover the switch while washing
the chassis.
Use only deionized water when cleaning. Use a 75% isopropyl alcohol solution
as a cleanser and rinse with deionized water.
Do not use chemical cleaning agents; they may damage the chassis. Avoid
chemicals that contain benzene, toluene, xylene, acetone, or similar solvents.
Interior Cleaning
Exterior Cleaning
Summary of Contents for TLA 720
Page 13: ...Table of Contents viii TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 22: ...Specifications...
Page 23: ......
Page 38: ...Operating Information...
Page 39: ......
Page 105: ...Command Groups 2 66 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 111: ...TEST Subsystem 2 72 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 124: ...Theory of Operation...
Page 125: ......
Page 128: ...Maintenance...
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Page 155: ...Jumper Settings 4 26 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 178: ...Options...
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Page 182: ...Diagrams...
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Page 186: ...Replaceable Mechanical Parts...
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Page 198: ...Replaceable Parts TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual 7 11...
Page 203: ...Replaceable Parts 7 16 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
Page 204: ...Index...
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Page 211: ...Index Index 6 TLA 720 Benchtop Chassis and TLA 7XM Expansion Chassis Service Manual...
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