Service manual

SERVICE MANUAL TNC 415B/425
Page 44
Issue: 20.08.95
6.4.3. Connectors on the Visual Display Unit BC 110 B
6.4.4 Pin Layout: Visual Display Unit BC 110 B
X1 Connection to the Logic Unit
flange socket with male insert (15-pin)
X2 Connection of the Soft Keys to the
Keyboard Unit
flange socket with male insert (9-pin)
Pin No. Assignment Pin No. Assignment
7 R analogue 1 SL0
9 V-SYNC 2 SL1
10 H-SYNC 3 SL2
11 0V 4 SL3
14 G analogue 6 RL15
15 B analogue 7 RL14
8 RL13
9 RL12
X3 Power Connection
terminal strip (3-pin)
X4 Test Output
terminal strip (2-pin)
Assignment as labelled Pin No. Assignment
+6V
-0V
= key matrix