HEIDENHAIN TNC 415 (259 9x0) Service Manual - Manual (Page 75)

SERVICE MANUAL TNC 415B/425
Page 70
Issue: 20.08.95
11.2.4 Key Matrix of the VDU Keys
X1 Pin 1) 4b 3b 2b 1b 1a 2a 3a 4a
X2 Pin 1) 13 14 15 16 20 21 22 23
Key 2) RL12 RL13 RL14 RL15 SL0 SL1 SL2 SL3
X X
SK1
X X
SK2
X X
SK3
X X
SK4 X X
SK5 X X
SK6 X X
SK7 X X
SK8
X X
X X
X X
X X
1) connector on keyboard unit
2) VDU key
X1: connector for flat cable VDU Ö keyboard unit (plug-type connector)
X2: connector for cable keyboard unit
Ö logic unit (D-SUB, 37-pin)
SK = soft key ( SK1...SK8 from left to right)