Tektronix TLA Series, Service Manual

Page: 82 / 130

Maintenance
6- 4
TLA Series Digitizing Oscilloscope Modules Service Manual
Table 6- 1: External inspection check list
Item Inspect for Repair action
Front panel and side
cover Cracks, scratches, deformations,
missing or damaged retainer
screws, ejector handles, or
gaskets. Replace defective or missing
parts.
Front panel connectors Broken shells, cracked insulation,
and deformed contacts. Dirt in
connectors.
Replace defective parts. Clear or
wash out dirt.
Rear connectors Cracked or broken shells, dam-
aged or missing contacts. Dirt in
connectors. Replace defective parts. Clear or
wash out dirt.
Accessories Missing items or parts of items,
bent pins, broken or frayed
cables, and damaged connectors. Replace damaged or missing
parts, frayed cables, and defec-
tive circuit boards.
CAUTION.
To prevent damage to electrical components from moisture during
external cleaning, use only enough liquid to dampen the cloth or applicator.
Cleaning Procedure — Exterior. To clean the DSO module exterior, perform the
following steps:
1.
Remove loose dust on the outside of the DSO module with a lint free cloth.
2.
Remove remaining dirt with a lint free cloth dampened with water. Do not
use abrasive cleaners.
Inspection — Interior.
Remove the module cover to access the inside of the DSO
module for inspection and cleaning.
Inspect the internal portions of the DSO module for damage and wear using
Table 6--2 as a guide. Defects found should be repaired immediately.