Service manual

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
XX
SK1
XX
SK2
XX
SK3
XX
SK4
XX
SK5
XX
SK6
XX
SK7
XX
SK8
XX
XX
XX
XX
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)