Villa Rotograph EVO, Service Manual

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SERVICE MANUAL
Troubleshooting
Rotograph EVO (Rev. 1) 8-24
8.2.6. Errors with code E850 E851 and E852
These messages are signalling an error caused on the operator’s
interface.
8.2.6.1. E850: More than one button pressed during power on
During the power on phase, the local control board of the keyboard is
controlling that during power on no more than 1 button is pressed.
Only the case of column up/column down is allowed and used to enter
the set up procedure, so if this procedure is started without an explicit
request, it means that those buttons are pressed.
In this case, replace the keyboard membrane and after the control board.
Otherwise the following message is displayed
E 8 5 0 ( x x x x x x x x )
C A L L T E C H A S S .
xxxxxxxx code number for message 850
Release the corresponding key if pressed and repeat the power on
procedure. Otherwise replace the keyboard membrane and after the
control board A4.
8.2.6.2. E851: Column up or Column down pressed at power on
This message is signalling that only one of the two button is pressed.
Release the pressed button and power off the system and power on it
again. If the message is displayed again, replace first the keyboard
membrane and after the control board.