Tektronix 323, Инструкция по эксплуатации

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SECTION 4
MAINTENANCE
Type 323
Change information, if any, affecting this section will be found at the
rear of the manual.
Introduction
Information contained in this section appears in the fol­
lowing sequence:
Preventive Maintenance
General Information
Cleaning
Visual Inspection
Lubrication
Transistor Checks
Recalibration
Troubleshooting
Test Equipment
General Techniques
Troubleshooting Basic Components
Troubleshooting Charts
General
Master Troubleshooting Chart
Power Regulator Troubleshooting Chart
Trigger Generator Troubleshooting Chart
Sweep Generator Troubleshooting Chart
Horizontal Amplifier Troubleshooting Chart
Vertical Preamplifier and Output Amplifier Trouble­
shooting Chart
Corrective Maintenance
General
Parts Procurement
Soldering Equipment and Techniques
Disassembly and Assembly
Component Location Illustrations
Cabinet Removal
Cabinet removal and replacement information appears in
the Power Pack Operating Procedure which is contained in
Section 2, Operating Instructions. The precautions outlined
there should be observed to avoid personal injury or equip­
ment damage during cabinet removal or replacement.
PREVENTIVE MAINTENANCE
General Information
The Type 323 Oscilloscope should be cleaned, lubricated,
inspected and recalibrated at regular intervals. A recom­
mended schedule for average operating conditions is every
6 months or every 500 hours of operation, whichever oc­
curs first. Additional information regarding maintenance
of the Power Pack is contained under the Disassembly and
Assembly part of this section.
Cleaning
Cleaning the Type 323 Oscilloscope, in addition to im­
proving its appearance, aids its operation and lengthens
its operating life. Dirt on components can result in short
circuits. A dry, soft cloth and a soft-bristled brush are
recommended for removing loose dirt from the outside of
the instrument. Dirt on the inside should be loosened with
a soft-bristled brush and removed by using a vacuum clean­
er or a stream of low-pressure air. High-pressure air can
damage the equipment and should not be used.
W ARNING
Use an eye-shield when cleaning with pressurized
air.
Hardened dirt should be removed by using a mild de­
tergent and water solution on a cotton-tipped swab or a
soft cloth. Remove the Power Pack before using the solu­
tion on the Oscilloscope. Avoid excessive use of water.
Do not allow water to penetrate any parts. Dry the instru­
ment thoroughly before energizing it. Avoid the use of
abrasives and chemical cleaning agents. Protect the oscil­
loscope from dirt and damage by keeping it covered when
not in use.
Soap and water should not be used on the Power Pack
unless one lead from the battery pack is unsoldered and
taped up. The unit must be allowed to dry thoroughly be­
fore reconnecting the lead. The battery compartment should
be checked for dirt and corrosion during the maintenance
period. Corroded areas should be cleaned with a neutral­
izing solution of 2% borax and water to prevent further
corrosion. Disassembly and Assembly instructions appear
later in this section and should be referred to before open­
ing the battery compartment.
Visual Inspection
After cleaning, the instrument should be carefully in­
spected for defects such as poor connections, damaged parts
and improperly seated transistors. Damaged parts require
that the cause of the damage be eliminated before opera­
tion is resumed.
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