Appendix C: User Service

Graticule Light Replacement

Replacement Bulbs

Replacement bulbs are supplied with this instrument as Standard Accessories. Additional bulbs can be purchased from Tektronix or from local electronics distribution sources. The Tektronix part number and ordering information is given on page 1-7.

Required Equipment

NOTE

For graticule light removal and replacement, tweezers with curved, serrated tips are recom- mended. For example, Miltex PL312,6-100 (equivalent to PL312) or PL317 (longer than PL312).

CAUTIONNeedle-nosed pliers are not recommended.Procedure1.Remove the five knobs below the CRT.

2.Insert a small, straight-blade screwdriver into the re- cessed 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.

C-2

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