Simplex 2120 - Page 16

SET YOUR VOM TO THE 3DVC
SCALE AND CONNECT lT
ACROSS THE POINTS
INDICATED IN THE
ILLUSTRATION BELOW
FIG.
REMOVE POWER TO THE ET
AS FOLLOWS:
. DISCONNECT BAlTERlES -
REMOVE ALL ET
FIRST;
DAUGHTER CARDS
l DISCONNECT AC LAST.
I
I
L
RECONNECT POWER TO THE ET
AS FOLLOWS:
. CONNECT AC: FIRST.
l CONNECT BATTERIES
LAST.
I
I
CONNECT YOUR VOM
ACROSS THE POINTS
INDICATED IN THE
ILLUSTRATION BELOW
ET
CPU
BOARD
RED LEAD OF,
VOM TO PIN 8
OF IC18
TO BLACK LEAD
Channel Failure Isolated to an ET
FIGURE 3G
14
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