Simplex 2120 - Page 32

ISOLATED THE
THE GROUND IS ASSOCIATED
WlTH ONE OF THE DAUGHTER .
CARDS YOU LAST INSTALLED
DISCONNECT POWER TO THE ET
AS FOLLOWS:
c l DISCONNECT
BAlTERlES FIRST.
l DlSCONhlECT AC
LAST.
TROUBLESHOOT THE CARD’S
ASSOCIATED MONlTOR OR
CONTROL POINT WIRING FOR
GROUNDS AND REPAIR
t
REMOVE HALF OF THE
DAUGHTER CARDS YOU
LAST INSTALLED
REAPPLY POWER TO THE ET
AS FOLILOWS:
3 l CONIIECT AC FlRST.
l CONIIECT BATTERIES
LAST.
f
CONNECT YOUR VOM ACROSS
TPS(+)AND
TP6 (OV) OF THE POWER
SUPPLY BOARD AS BEFORE
THE GROUND IS ASSOCIATED
WITH ONE OF THE DAUGHTER
LEVEL GREATER CARDS YOU LAST REMOVED
GROUND FAULT Trouble
FIGURE 5G
30
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