Vector ZCB User Manual page 70

FIELD MANUAL UPDATE
Manual: ZCB
Revision: Rev. 1-B
Date of Manual: 6/11/80
Date of Update: 2/27/81
Please make the follcwing additions/corrections to the above named manual.
Section 2.4.8 Connecting the Sprint 3 to the ZCB
1) Plug the interface card into the 34 pin parallel I/O connector on the
ZCB so that the bulk of the interface card is tcwards the solder side of
the ZCB board. In the MZ it will aim tcwards the rear; in the Vector 3
it will aim towards the front.
Section 2.4.9 Connecting the MP to the ZCB
1) Plug the interface card into the 34 pin parallel :t/O connector on the
ZCB so that the bulk of the interface card is tcwards the solder side of
the ZCB board. In the MZ it will aim tcwards the rear;
In
the Vector
3
it will aim towards the front.
Sect ion 2.3 EPIDM/RAM Sect ion
Add the following paragraph at the bottom of the page:
CAIJTICN
Changing the EPRClMs from the factory standard configuration involves
rewiring the socket };XJWer lines. If these revisions are not made, it is
likely that any chip erronoosly inserted in the EPROM sockets will be
destrCl'i'ed.
Add the follcwing to the Appendix (Section IV.)
Current ZCB boards are configured to take a 2K (2716-type) PROM at U20
(EOOOH), a 1K (2708-type) PROM at U21 (E800H) and a 1K (27G8-type) PROM
at U22 (ECOOH).
Special Note on Reconfiguring Socket 20.
Note on page 5 of the ZCB schematic that pad 7 of jumper area
J
is
connected to pad 5 of the same area. This connection is actually made