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Appendix D: User Service
D–4
WFM 601A, WFM 601E & WFM 601M User Manual
3. Insert a small, straight-blade screwdriver into the recessed area on the right
or left side of the panel. Pry gently until the panel snaps out of the front-
panel frame. See D–1 for panel and recess location.
4. Remove the two Torx screws that fasten the bezel to the waveform
monitor.
5. Grasp the bottom of the bezel and pull out and upward to remove the bezel
from the instrument. Two hinges at the top of the bezel hold it in place. Once
the bezel is at a 45° angle with the front panel, they disengage. Remove the
damaged filter out the back of the bezel piece.
6. Snap the new filter into place on the back side of the bezel. Position the
ridged side of the filter towards the CRT.
7. Replace the bezel and bezel screws. Tighten the screws. Be careful not to
overtighten them.
8. Place the panel below the CRT, and press on both the right and left sides of
the panel until it snaps into place.
9. Replace the five knobs below the CRT and tighten the set screws.