Manual

Processor Modules (T3110, 11, 12, 20, 21, and 22)
PD - 6000 Mar - 06 13
this ribbon cable; instead, simply lift the main processor board
to expose and access the I/O processor board.
F igure 6 . Processor Circuit Board Assembly.
Replacing EPROMs
The three EPROMs in each module are labeled U42 and U43
(main processor) and U19 (I/O processor). Figure 7 shows the
locations of the EPROMs on each printed circuit board.