Maintenance
6–4
WFM 601A, WFM 601E, & WFM 601M Service Manual
After cleaning, allow the interior to thoroughly dry before applying power to the
instrument.
In order to operate in all environmental conditions the waveform monitor
requires clean unrestricted air flow. The air filter, which cleans the air supplied
by the fan, is located in the fan housing on the rear panel. Check the filter
frequently. A supply of replacement filters was shipped with this instrument.
Filter Replacement.
To replace the air filter, pull the fan cover off the fan, lift out
the old filter and replace it. Carefully press the cover into place over the fan
housing. Refer to Figure 6–14 on page 6–16 for details of the fan assembly.
Filter Cleaning.
You can clean and reuse the air filters supplied with this instru-
ment. Wash the used filters in warm water and mild detergent. Let them dry
thoroughly before reusing them.
Additional Air Filters.
Order additional air filters directly from Tektronix. The part
number for the air filters is listed in Options, section 7.
After cleaning, carefully check the instrument for defective connections or
damaged parts. If you discover a heat-damaged part, determine the cause of
overheating before replacing the damaged part to prevent additional damage.
Periodic checks of the transistors and integrated circuits are not recommended.
The best measure of performance is the actual operation of the component in the
circuit.
Operation of the waveform monitors is dependent upon the operating software
loaded in the Flash EPROM on the Main board. New software versions may be
released to add features or correct reported problems. You can save considerable
time and troubleshooting effort by reporting the software version when calling
Tektronix for parts or service information.
NOTE
. If the Flash EPROM fails, you will need to return the instrument to
Tektronix to replace the part and restore proper operation.
Replacing and Cleaning
the Air Filter
Visual Inspection
Determining the Software
Version
Содержание WFM 601A
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