Troubleshooting
312780K 21
EasyKey Barrier Board Diagnostics
See FIG. 7 and Table 2 to troubleshoot the EasyKey barrier board. Also see the EasyKey Electrical Schematic on
page 33 and the System Electrical Schematic on pages 34 and 35.
F
IG. 7: 255786 EasyKey Barrier Board
J5, Pin 1
J1, Pin 1
J4, Pin 1
D4
D5
F4
F3
F2
F1
Table 2: EasyKey Barrier Board Diagnostics
Connector Description Diagnosis
J1 AC Power Input n/a
J4 24 Vdc Power Input to
EasyKey Display Board
D5 turns on.
J5 12 Vdc Power Output to
Fluid Station Board
D4 turns on if barrier board is functioning. If D4 does not turn on, fuses F3
or F4 (Graco Part No. 15D979) are blown or there is no input power at J4.
If there is no input power (D5 does not light), fuses F1 and F2 (Graco Part
No. 114788) may be blown.
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