Tektronix DSA8300 Service Manual page 51

Exterior Inspection
Interior Inspection
DSA8300 Digital Serial Analyzer and Modules Service Manual
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 might damage the
chassis.
Clean the On/Standby switch using a dampened cleaning towel. Do not spray or
wet the switch directly.
Use the following table to inspect the outside of the instrument for damage or
missing parts. Immediately repair defects that could cause personal injury or lead
to further damage to the instrument.
External inspection checklist
Item
Cabinet, front panel, and
cover
Front-panel knobs
Connectors
80C0X male fiber
connections
Carrying handle and cabinet
feet
Accessories
To access the inside of the instrument for inspection and cleaning, refer to the
removal and installation procedures. (See page 4-5, Removal and Installation.)
Inspect the internal portions of the instrument for damage and wear, as shown in
the following table. Repair defects immediately.
CAUTION.
To prevent damage from electrical arcing, make sure that the circuit
boards and components are dry before applying power to the instrument.
NOTE. If you repair or replace any circuit board, check to see if it is necessary to
adjust the instrument. (See Table 4-4 on page 4-58.)
Inspect for
Cracks, scratches,
deformations, damaged
hardware.
Missing, damaged, or loose
knobs.
Broken shells, cracked
insulation, and deformed
contacts. Dirt in connectors.
Lint or dust on all male fiber
connections.
Correct operation.
Missing items or parts of
items, bent pins, broken or
frayed cables, and damaged
connectors.
Maintenance
Repair action
Repair or replace defective
assembly.
Repair or replace missing or
defective knobs.
Repair or replace defective
assemblies. Clear or wash
out dirt.
Clean all male fiber
connections with a lint-free
cleaning cloth.
Repair or replace defective
assembly.
Repair or replace damaged
or missing items, frayed
cables, and defective
assemblies.
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