Intrinsic Safe Barrier Pcb Replacement; Display Board Replacement - Wayne Vista Series Service

7.1.2. Computer Assembly Replacement, continued
12. Replace the DEM in its original position and turn the control power ON.
13. Program the dispenser as follows:
14. Reinstall the bezel.
15. Record totals a second time and give both sets of totals to the dealer/
7.1.3. Intrinsic Safe Barrier PCB Replacement (see Figure 7-2)
The Intrinsic Safe Barrier PCB is mounted to the bottom of the electronics
enclosure under a black metal cover.
1. Remove the bezel opposite the junction box side.
2. Remove black metal protective shroud.
3. Remove connectors
4. Remove mounting screws from PCB assembly.
5. Replace with new board using the reverse procedure.
7.1.4. Display Board Replacement (see Figure 7-3)
1. Remove the bezel from the dispenser.
2. Remove the dial face from the display by loosening the four screws in the
3. Disconnect the data cable(s) from the sale display.
4. Remove the screws securing the display assembly. Remove the sale display.
5. Install the new display and secure it with hardware removed in Step 4.
6. Reconnect the data cable(s) from the sale display.
7. Reinstall the dial face and bezel.
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Part No. 917543 Rev. A
a. Set the macro and all option programming.
b. Set the unit prices (if stand-alone); or
c. Set the fueling point number.
manager for his or her records.
corners of the dial face and then slipping it up and off of the display.
November 1992