8.4
Operators include a self-diagnostic circuit board using troubleshooting LED
indicators to signal the technician of a problem.
LED Indicators Fig. 6
+24
VDC
STB
ENAB
Figure 6
TROUBLESHOOTING LED’s
+ 24 VOLTS
DC
STB
ENABLE
NORMALLY ON - STB ENABLED OFF - STB DISABLED
NORMALLY ON - POWER AVAILABLE
OFF - CHECK AC POWER SUPPLY
CHECK FUSES
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04-14