Sharp mz-800 Owner's Manual page 16

(3) Using a green display unit (MZ-1D04)
Insert the pin plug of the green display unit cable into the composite signal output jack on the rear
panel of the MZ-800.
Position the B/W-colour switch to B/W.
Note:
A colour TV set with a video input terminal can be connected to the composite signal output jack
of the MZ-800. The monitor cable provided with the MZ-800 can be used for this connection.