22 – 362 HEIDENHAIN Service Manual iTNC 530 HSCI
Power supply and
display signals
The BF 250 …
is powered with 24 Vdc (e.g. +24V-NC from PSL 130).
receives display signals from the MC 6241.
The HDL display interface (HEIDENHAIN display link) ...
Connector X249 on the MC 6241
Connector X2 on the BF 250
... is HEIDENHAIN-specific.
A conventional flat-panel display cannot be connected.
The MC 6222 is ...
powered with 24 Vdc (e.g. +24V-NC from PSL 130)
Control with display signals takes place internally in the MC 6222 housing.
Signal paths Overview --> See ”Signal paths in the console and to the MC 62xx” on page 23 – 367.
22.2 Possible error causes
Faulty 24 Vdc power supply
Defective screen soft keys
Monitor defective
Defective monitor cable
No display signals from the graphic card
Defective fan
Defective cover glass
Defective USB devices
USB devices draw too much current
TE 6xx keyboard unit defective
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