F3Ci Service Manual
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53
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Identify the ribbon cable connector on the main PCB which connects to the switches.
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Lift open the locking bails on the ribbon cable connector this allows the ribbon cable
to be removed and inserted.
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Gently slide the ribbon cable out of the connector.
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Lay the detector on its side with the control knobs facing upwards. Set the controls
to off and setting 4.
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Using a 2mm hex key driver, undo the screws in the centre of each control knob and
remove the screw, bush, spring and knob from the switches.
Figure 90: Removing Control Switch Knobs
Figure 89: Disconnect the Ribbon Cable
2. Identify Ribbon Cable
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