Xerox 3050 Service Manual page 108

2.2 POST 2,3,4,5,6 and 7 RAP
This RAP is used when the logic detects a
fault during the Power On Self Test (POST).
I
The Control Console Message Display
is
either blank or only a 2, 3, 4, 5, 6 or 7 is
displayed. When the copier is switched on,
the copier does not initialize.
NOTES: 1 .
If
the Control Console Message
Display displays random characters, refer to
the
2.1
Control Panel
RAP.
2.
The copier may or may not be equipped
with a Secondary Language EPROM.
Initial Actions Procedure
Ensure that the EPROMs and the NVM
Refer to the table on the following page.
are seated fully.
Ensure that the 40-conductor ribbon
cable connected at the LVPSI DRIVER
PWB
connector A2 P206 and the
CONTROL PWB connector A3 P314 is
seated fully at each connector.
Ensure that the power cable
connected at the LVPSl DRIVER PWB
connector A2 P207 and the CONTROL
PWB
connectorA3
P313
i s seated fully
at each connector.
LVPSl DRIVER PWB (A21
P I 1 1
/
CONTROL PWB (A3)
PL 1.1 \
,
. . ...
/
A l p 2 0 6
A3 P314
\
CONTROL EPROM (2)
\
/
-
NVM
SECONDARY LANGUAGE
11 A2 P207 A3 P313 EPROM PL 1.1
31 9 3
3050 2-1 56
2.2 POST 2,3,4,5,6 and 7 RAP