IBM 3277 Troubleshooting Manual page 110

Display station models 1 and 2
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To CRT Anode
/
r-
~
Diagram 7-14. High-Voltage Power Supply
Arc-Suppression Neon
o
o
o
E8
r1
I
I
I
I
I I
Diagram 7-15. Model 1 Arc.suppr . . ion Board
7-14
Focus Adj
Potentiometer
o
o
o
o -
+400V (Focus)
+400V
Enable Input (uv)
OC Return
Notes:
1. Connector pins on reverse side of board.
2. Component layout may differ from
illustration, depending on part number
and EC level; however, connector pins
are numbered the same on all variations.

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