Maintenance
6-4
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
WARNING. Before performing any procedure that follows, pow er down the
instrument and disconnect it from line voltage.
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 that may
damage the chassis.
Clean the On/Standby switch using a dampened cleaning towel. Do not spray or
wet the switch directly.
CAUTION. Avoid the use of chemical cleaning agents which might damage the
plastics used in this instrument. Use only deionized water when cleaning the
menu buttons or front-panel buttons. Use a 75% isopropyl alcohol solution as a
cleaner and rinse with deionized water. Before using any other type of cleaner,
consult your Tektronix Service Center or repr esentative.
Inspection — Exterior. Inspect the outside of the instrument for damage, wear, and
missing parts, using Table 6--1 as a guide. Immediately repair defects that could
cause personal injury or lead to further damage to the instrument.
Table 6- 1: External inspection check list
Item Inspect for Repair action
Cabinet, front panel,
and cover
Cracks, scratches, deformations,
damaged hardware
Repair or replace defective
module
Front-panel knobs Missing, damaged, or loose
knobs
Repair or replace missing or
defective knobs
Connectors Broken shel ls, cracked insulation,
and deformed contacts. Dirt in
connectors
Repair or replace defective
modules. Clear or wash out di rt
Carrying handle, and
cabinet feet
Correct operation Repair or replace defective
module
Accessories Missing items or parts of items,
bent pins, broken or frayed
cables, and damaged connectors
Repair or replace dam aged or
missing items, frayed cables, and
defective modules
The display is a soft plastic display and must be treated with care during
cleaning.
Exterior Cleaning
Flat Panel Display
Cleaning
To Next Page
Loading...
Need help?
General
