Xo 4, Troubleshooting Manual, Page: 7 / 88

XO 4 & XO FLEX TROUBLE SHOOTING GUIDE
Version 3.30 7
Major Cases: ......................................................................................................................... 71
Signal Measurement: Rectangular shaped signal .................................................................. 71
Special Case: The backrest motor does not stop when reaching topmost position ................. 72
Out of synchronisation ........................................................................................................... 72
Electrical Safety Tips ............................................................................................................. 72
Electrical work procedure: ......................................................................................................... 72
Reversal of the motor polarities. ............................................................................................ 72
Before proceeding: ................................................................................................................ 73
Handling: ............................................................................................................................... 73
Advice:................................................................................................................................... 73
Synchronization: .................................................................................................................... 73
Mechanical work procedure: ..................................................................................................... 74
Disassembling of the drive bearer: ........................................................................................ 74
Powering up the Unit: ............................................................................................................ 74
Advice:................................................................................................................................... 74
Chair synchronisation: ............................................................................................................... 75
To synchronise the chair, proceed as follows: ....................................................................... 75
Note that this description refers to firmware version 1.51 or later. ......................................... 75
Alternative procedure: ........................................................................................................... 75
Information ............................................................................................................................ 76
The XO operating lamp does not switch when it reaches working position 1 or 2 ................. 77
The OP lamp does not switch on when placing the hand under the sensor. ......................... 77
The OP lamp LED shines faintly. ............................................................................................ 77
How to measure voltage output on OP light? ........................................................................ 77
Display shows « Foot control Error” during start-up .............................................................. 78
“Network Fail!! “Call Service”................................................................................................. 78
Nothing happens when the pedal is activated. ...................................................................... 79
No picture on the screen. ...................................................................................................... 80
Image quality problem ........................................................................................................... 81
Screen problem. .................................................................................................................... 81
Advisory ................................................................................................................................. 81
Spittoon Valves DÜRR ........................................................................................................... 82
CAS 1 DÜRR ......................................................................................................................... 82