Checking The Bc 150 Visual Display Unit - HEIDENHAIN iTNC 530 Service Manual

11.2 Checking the BC 150 Visual Display Unit

Fault diagnosis If the machine is switched on, but the screen remains black:
 Is the fan running?
 Check the 24 V voltage at the 2-pin connector of the visual display unit.
If another BF 150 is available:
 Test the VDU output X19 with this monitor.
If you have a dimensionally identical control:
 Test the BF 150 with this control.
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Note
If the power supply is in order, then a further inspection of the flat-panel display is not
possible without special test equipment.
Note
If required you can display the control monitor by means of the programs TNCremo,
TNCremoNT or TeleService.
HEIDENHAIN Service Manual iTNC 530