Maintenance
1720/1721
6–17
Remove these screws in order
to remove the bezel
Figure 6-3: Screws that need to be removed to remove the bezel.
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).
CAUTION. Bulb Removal:
Needle-nosed pliers are not recommended.
Replacement bulbs are supplied with this instrument as Standard Accessories.
Additional bulbs can be purchased from Tektronix (see Replaceable Electrical
Parts list) or from local electronics distribution sources.
1. Remove the bezel according to the preceding instructions.
2. 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.
Graticule Light Removal
and Replacement
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