Cpu Assembly Connectors - HP PageWriter XL M1705B Service Manual

A
Connector Pin Assignments
The tables in this appendix list the pin assignments for each
connector on the CPU assembly and the preview display boards.
Following each table is a dictionary of the signal names listed in the
table. Signal names that begin with a lowercase n are active low
signals. NC means no connection to a pin. Refer to Figure 5-2 and
Figure 5-12 to see how the system interconnects.
CPU Assembly
Connectors
Refer to Figure 7-20 for the CPU assembly connector locations.
Note .I
t?
The system's 5 V power supply is divided into several circuits, each
c
of which is passively filtered for EMI. Therefore, the +5V signal
shown in the pin assignment tables does not always represent the
same filtered 5 volt circuit.
Connector Pin Assignments A-l