Tektronix WFM 601i, User Manual

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Appendix C: User Service
WFM601i Serial Component Monitor C–2
NOTE .
For graticule light removal and replacement, tweezers with curved, serrated tips
are recommended. For example, Miltex PL312,6-100 (equivalent to PL312) or PL317
(longer than PL312).
Procedure
1. Remove the five knobs below the CRT.
2. Insert a small, straight-blade screwdriver into the recessed area on either the
right or left side of the panel. Pry gently until the panel snaps out of the
front-panel frame. See Figure C-1 for panel and recess location.
CAUTION.
Needle-nosed pliers are not recommended.
3. To remove a bulb, position the tweezer tips on the thin, flat portion of the
bulb (close to the plastic socket). Carefully pull the bulb straight out.
4. To install a new bulb, hold it with the tweezers as described in step 3,
position it in front of the socket, and push the bulb until it snaps in place.
5. Replace the panel below the CRT, and press on both the right and left sides
of the panel until it snaps into place.
6. Replace the five knobs below the CRT and tighten the set screws.
Remove these five knobs
Remove this panel
Recess
Recess
(shaded portion)
Figure C-1: Graticule light replacement.