Simplex 2120 - Page 13

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REMOVE POWER TO THE ET
AS FOLLOWS:
. DISCONNECT BAlTERIES FIRST.
. DISCONNECT AC LAST.
L
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RE-INSTALL ONE-HALF OF
THE REMOVED DAUGHTER
CARDS
H
RECONNECT POWER TO THE
ET AS FOLLOWS:
l CONNECT AC FIRST.
. CONNECT BAlTERlES LAST.
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I
SET YOUR VOM TO THE
3DCV SCALE AND
CONNECT CT ACROSS
DOES LEVEL
THE POINTS SHOWN IN
THE ILLUSTRATION
BELOW
REMOVE POWER TO
REINSTALL ONE-HALF OF
THE ET
- THE REMAINING
DAUGHTER CARDS
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RECONNECT POWER TO THE
ET
t-
CONNECT YOUR VOM
ACROSS THE POINTS
SHOWN IN THE
ILLUSTRATlON BELOW
TO BLACK LEAD
OF VOM
,OV = TBl-5
ET
CPU
BOARD
RED LEAD
OF
VOM TO PIN 2
DF lCl8
.
I ml
Id i :- d-l-:
Channel Failure Isolated to an ET
FIGURE 3D
11
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