Possible Causes Of Error - HEIDENHAIN iTNC 530 Service Manual

TE 535 Q

22.3 Possible Causes of Error

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Strong contramination --> Key functions are possibly damaged.
Jammed chips. --> Key gets stuck.
Pressure contact defective. --> Key no longer reports actuation.
Note
Defective keys either do not contact any more or are in permanent contact.
Liquid has penetrated
Defective keypad board
Defective cable between screen and keypad (screen softkeys)
Defective cable between keypad and control
Potentiometer wiper worn
Defective touchpad
Defective interface on the control
HEIDENHAIN Service Manual iTNC 530