Xerox Telecopier 7033 Service Manual page 266

1.2 Repair Analysis Procedures
Begin each procedure with step 1. It is important to follow the
sequence outlined since each step assumes the previous steps to be
correct. Each step is the normal operational event of the LAN Fax Server
PWB and can be confirmed by answering Y (yes) to the statement. A Y
response leads to the next step. An N (No) response will lead to a RAP in
this section or to a component replacement. Replace the components
listed after N in the order given.
When a problem has been isolated to a faulty component or
subassembly, first check for loose, bent, or dirty connections as the cause
of the problem. If one of these is the cause, always attempt to resolve
the problem by tightening connections, straightening bent pins,
cleaning contacts prior to replacing components.
Perform RAP 1.2.1 to verify repair after completing each corrective
action (replacing or adjusting a part, reseating a connector, etc.).
The Primary Error Code List in section 2 should be used whenever an
error code occurs during an operation or a self test. The list identifies a
replaceable component (or components) for a code, or directs you to
perform a RAP to isolate the problem.
If Service Call Procedures do not isolate the problem, call for technical
assistance.
1.2, RAP 1.2.1
1.2.1 LAN Fax Server PWB Indicator Light Boot Sequence
1. Remove AC power from the terminal and the optional LAN Fax
Server PWB power supply.
NOTE: The external DC power supply is required when the LAN Fax
Server PWB is configured for operation on a Ethernet Thick
cable network.
2. Power ON the terminal and the optional DC power supply.
3. The LAN Fax Server PWB test the Red and Green LED's. Both the Red
and Green LED's blink ON then OFF (Normal time is about 1 sec.,
Maximum 3 sec.).
or
Y N
| Replace the LAN Fax Server PWB
4. The LAN Fax Server PWB runs power on diagnostics. The Green LED
is blinking ON and OFF while the Red LED remains OFF (Normal time
is about 5 sec., Maximum 10 sec.).
Y N
| Go to RAP 1.2.3
5. The LAN Fax Server PWB is connected to the network.
Y N
| Go to RAP 1.2.15
6. The LAN Fax Server PWB initializes and searches the file server for
the EXPRESS.SYS file. The indication is Green LED OFF and Red LED
ON which may flicker ( Normal time is about 30 sec., Maximum 35
sec.).
Y N
| Go to RAP 1.2.4
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