Welch Allyn 767 Diagnostic System - User Manual - Manual (Page 9)

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Change Time:
The following steps should be followed when resetting the time:
1. Remove clock module by prying the clock faceplate from unit housing.
2. With clock in clock mode, press Start/Stop button for 5 seconds until time on clock
begins to flash.
3. Using Hour Set and Minute Set buttons on back of clock module, set time to correct
values.
4. Press Start/Stop button again to return clock to regular operation.
5. Replace clock module into unit by lining up edges and pressing into main housing.
Change Clock Battery:
1. Remove clock module by prying the clock faceplate from unit housing.
2. Remove battery by pushing battery out of retaining sleeve. For best results, use a
pen or pencil to pry against the faceplate housing wall.
3. Insert new battery. Welch Allyn recommends Maxell 43 or equivalent.