EFX 885, 835, 825
Service Manual 20039-166
Page 133
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Section Nine - EFX Troubleshooting Procedure
Troubleshooting 9.1 Troubleshooting the Lower and Upper Interconnect Cables
1.
Remove the five screws from the rear of the upper display housing. Remove the display housing front panel from
the display housing. Disconnect the upper interconnect cable from the upper PCA.
2.
Remove the four screws from the access cover below the display. Disconnect the upper interconnect cable from
the mid-point connector. Refer to Diagram 9.1.1
Diagram 9.1.1 - Data Cable Mid-Point Connector
3.
External of the upper column, connect a replacement upper interconnect cable to the mid-point connector and
the upper PCA.
4.
Check operation as described in Section Seven. If the unit works properly, replace the upper interconnect cable
as described in Procedure 10.4.
5.
If the symptoms are unchanged, remove the external upper interconnect cable. Reconnect the internal upper
interconnect cable to the mid-point connector and the upper PCA. Set the display housing front panel in its
mounting position and fasten it with the five mounting screws removed in step 1. Trouble shoot the lower
interconnect cable starting with step 6.
6.
Remove the right side rear cover as described in procedure 10.1.
7.
Disconnect the lower interconnect cable from the mid-point connector and the lower PCA. Refer to Diagram
9.1.1.
8.
External of the frame, connect a replacement lower interconnect cable to the mid-point connector and the lower
PCA.
9.
Check operation as described in Section Seven. If the unit works properly, replace the lower interconnect cable
as described in Procedure 10.4.
Upper
Interconnect
Cable
Mid-Point
Connector
Lower
Interconnect
Cable
Summary of Contents for EFX 825
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