Service manual

Cable type 5
You need to make this cable to use with monochrome
monitors which have a phono input socket. You need a
15-way plug to phono socket adaptor with resistors, to
mix the separate red, green and blue signals into a
composite monochrome signal (you can fit these
components into a 15-way connector shell).
You need to make an adaptor cable that has a 15-way D-
type plug on one end, and a phono plug on the other. The
connections you need to make are as follows:
Note: The HSYNC to ID[0] connection will make the
monitor type 0 modes available and the computer will
generate a composite sync signal.
E-2 Issue 1, November 1991 Appendix E - Monitor adaptor cables