[comp.sys.zenith.z100] Z248 question

WANCHO@SIMTEL20.ARPA ("Frank J. Wancho") (01/09/88)

(I know - this is the H/Z-100 list, but just maybe one you happen to
know the answers...)

On the back of the Z248, just above the RGB connector of the EGA card,
there are two RCA jacks.  What kind of signals, if any, are present?
There is no mention of these jacks in the manuals.  Might they contain
composite video?  Details, please...

--Frank