Burst Electronics MCG-3 - Manual (Page 60)

59 MCG-3 Color Micro Character Generator
RTC ADDENDUM FOR MCG-3
Introduction:
The RTC (Real Time Clock) option for the MCG-3 allows the MCG-3
to maintain the date and time of day, and displays these on the video
display. Time keeping is battery backed so the RTC will maintain time
and date information when power to the unit is off. The RTC maintains
date information as follows: month, date, and year. Leap year is
detected and corrected for on leap years. For time information the RTC
maintains hours, minutes, seconds and AM/PM status. The RTC will
work in miliary time (24 hour format) or standard time (12 hour
format).
Installation:
The RTC option is a small printed circuit board that installs on the
inside of the MCG-3. Proceed as follows:
1. Turn off the power to the MCG-3.
2. Remove the two screws on the face of the unit.
3. Remove the front panel.
4. Slide the top cover forward and remove.
5. Locate the lithium battery. It is positioned towards the front of
the unit, it is silver, about the size of a quarter, and is sitting in a
black holder. Directly behind the lithium battery (looking from
the front of the unit) is a black connector with 20 holes. This is
the connector for the RTC.
6. Remove the RTC board from its plastic page. Note, to avoid
damaging the RTC and the MCG-3 by static electricity, be sure
to electrically discharge yourself before removing the RTC
board from its bag.
7. With the power off, insert the RTC into the black 20 hole
connector, long end toward the rear of the MCG-3. (You should
still be able to see the lithium battery after the RTC is installed.)