IBM 3279 2A Maintenance Information page 38

Color display station
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*DANGER
Power Supply Card
Pins may
be
up to 250 V above ground potential
+S V de A2D03 - A3D03
-S V and +8.S V
-5 V de A2B06 - A3B06
are each connected
o
V de A3DOB - A3DOB
through logic card
+8.SVdeA2Bll -A3Bll
B2 only.
d..
82
C2
D2
+S V
-
r---
-
-'"
-S V
~
* *
OV
I"'
u...
9
8 S 4
+8.SV
(
P3
Ve
..
===
fo--+-
1---1-
r -
t-
Co
~+103
V de
1++103 V dc return
A3
rtical
nnections
de by
Ma
LOPT
IS
14
-
I-r--
-::-
-
LOPT
Retur
-:-.0
n
[~8
~
Sense
(0 HI
Analog Card
P4
340
290
30v
3SV
~
+S V
' - - -
-S V
OV
+8.5 V
AS
rD
To
Video Card
and
Amplifier Card
See Figure 6·4
for
voltage pins
on
Planar strips
Figqre 3-2. Power Supplies to Logic Gate and Analog Card
3279 MIM
......
I
Lo
gic Cards
I~
I
I
I
~
I
~
r---+-
I
I
I
I
I
I
I
I
I
~
I
I-----
I
~
I
I
I
_.1-
- -- ---
I
I
I
I
I
I
.....l.-
~
-2-
Logic Gate: Card Side
Chapter 3. Functional Components
3-3

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