Esco Airstream PCR-3A, Руководство по обслуживанию

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Problem 7 — Inoperative buttons
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Inoperative buttons
Connection problem
• Unplug the cabinet from the main supply.
• Open the top access cover and locate electrical panelinside.
• See Layout A at the end of this section to locate the main
board inside electrical panel.
• See Fig. 7.1 below and ensure FRC cable going to interface
board is connected properly. The triangle sign on the
female connector indicates PIN number 1.
•
Interface board and membrane/keypad are located behind
the blue panel, underneath the light metal deflector.
• With the cabinet still turned-off, uninstall the fluorescent
light and metal deflector to access the interface board (see
Fig. 7.3).
• See Fig. 7.2 below for the proper connection between
main board, interface board, and membrane/keypad.
•
Check if the green plastic cable from the membrane has
been inserted properly into the interface board. Follow Fig.
7.4 for the correct orientation of connector.
FRC to Main Board
Green plastic cable
INTERFACE
BOARD
MEMBRANE
Fig 7.2
Fig 7.1
Fig 7.3
DOMINIQUE
DUTSCHER
SAS