We have identified rare cases of the Series 1 range of display units failing very short time after power on (less than 5h).

If the unit is operating as normal after 5 hours, then there is no indication that the unit will fail at a later stage of its lifetime (normal failure rates should be expected).

Symptoms are:
- The unit shuts down and stays in "off" status (all LED's turns red).
- The unit does not respond to any keypad buttons and can not be turned on.
- The incident can happen after some minutes or hours after power on.

Please see below for solution on how to solve this behaviour.

Keypad on Series 1	OFF status

APPLIES FOR THE FOLLOWING HATTELAND DISPLAY® PRODUCTS:
JH 15T17 xxD-xxxx
JH 19T14 xxD-xxxx
JH 20T17 xxD-xxxx
JH 22T11 xxD-xxxx
JH 23T14 xxD-xxxx
JH 27T11 xxD-xxxx

Note: Customized models are ALSO affected by this Service Memo. 


SOLUTION:
Contact our service department to receive an RMA number. The unit needs to be returned to our factory for upgrade. 


For further enquiries regarding this Service Memo Notification, please contact HelpDesk.