IBM 5251 Series Maintenance Information Manual page 111

Lightning Protector
Black White
Cable to
Planar
Red
2
3
0
6
I
I nternal System
Cable Connector
r------------,
Diodes
RowA
-c:n-
-EJ--
-c:n-
I \
I
G
N O
ol--.§.(/ \
Cable to Sig 2 5a.. T P
Planar
3 4 ........
Sig
Schematic
The dotted lines show land patterns on the
back of the PC board.
Row B
Anode
End
Maintenance Procedures 5251 MIM 1-93