Part No. 920525 Rev A - Wayne 3/VISTA series Service Manual

WARNING
Electric Shock Hazard!
Some of the following corrective actions in this Section may require the electrical power to the equip-
ment be ON. Use wiring diagrams, connector drawings and other information in this manual to iden-
tify the electrical connections and AVOID contact with the electrical power. Failure to do so may result
in severe injury or death.
See board layouts in Section 9 for for identification and location of connector assignments and LED indicators.
Enter the Maintenance Mode statistics S21 and S22 to check error codes.
7.1. USE IR REMOTE
Use the IR Remote to access Functions for setting unit prices, fueling point numbers, blend ratios and to access Statistics
for viewing error codes and performming other diagnostics as follows.
press ENTER
enter Password _ _ _ _
press ENTER
enter Password again _ _ _ _
press ENTER
enter Function number
7.2 USING THE SERVICE TERMINAL PROGRAM (STP)
A service kit, Service Terminal Kit, part number 887722-001, includes all items necessary to perform the
following tasks.
The Service Terminal Program allows a laptop computer to communicate with the pump computer through an
RS232 link to access dispenser functions and diagnostic data. Although you perform the programming through
the pump display, a description of the various functions and statistics appear on the laptop display.
The Service Terminal Program is also used to upload and download dispenser model configuration templates
and program code revisions.
1. Disconnect the J1 power connector on the computer board.
2. Connect the RS232 cable to the RS232 adapter (part # 887526-001). Connect the adapter to J18 on the com-
puter board. Connect the other end of the RS232 cable to the laptop PC.
3. With the Service Terminal Program (STP) on the laptop closed, re-connect J1 power on the computer board.
4. Start the Service Terminal Program to put the dispenser into maintenance mode.
5. The STP should start communicating with the pump computer.
June 2001
7. TROUBLESHOOTING GUIDE
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Part No. 920525 Rev A