HEIDENHAIN TNC 407 (243 020) Service Manual - Manual (Page 56)

31-O
SERVICE MANUAL TNC
Issue:
01.09.1995
Page
48.1
BC 1 B 260 520 01
If the screen remains dark when the machine is switched on, first check the power supply (line voltage) of the
VDU. The control signals of the VDU can only be checked by means of an oscilloscope.
The following diagrams were drawn while the VDU was connected. The signals R-analog, G-analog and
B-analog may be shaped differently (depending on machine parameters and the current screen display).
Pin layout see sections 5.1.6 and 5.4.
Diagrams
V-SYNC pin 9 H-SYNC pin 10
R-Analog pin 7”
10
5
G-Analog pin
20
5