Appendix C

User Service

This section contains instructions for user and preventive maintenance. If the instrument does not function properly, it should be referred to qualified service personnel or returned to Tektronix for service. Packaging directions for shipment are on page 1-9.

Cleaning or Replacing the Fan Filter

To ensure adequate air flow, it is essential to clean or replace the rear-panel fan filter regularly. The interval between filter cleaning or replacement is determined by the operating environment.

To remove the filter, take out the two screws that fasten the housing to the rear panel.

Remove the filter and wash it in a mild detergent and water solution. Place cleaned and dried filter (or new filter) in the housing and replace housing over the fan. Replace and tighten the two screws (8 in lbs).

The filter part number is shown on page 1-7.

Fuse Replacement

Remove the fuse cap from the rear panel and replace the fuse cartridge with a 250V, 2A, F-type fuse as specified on the rear panel.

1740A/1750A Series Waveform/Vector Monitor User Manual

C-1