Simplex 4208 - Troubleshooting; Trouble Conditions and Causes

TROUBLESHOOTING
1. COMMON TROUBLE lamp illuminated and
Sonalert sounding:
A. ZONE TROUBLE lamp illuminated - prob-
lem in the alarm initiating device circuit.
B. EARTH lamp (“J” panel) illuminated -
ground in the 4208 system.
C. LOW BATTERY lamp (“Q” panel) - stand-
by battery discharged.
D. Check the lines to and from the alarm-signal-
ing devices on the “F”, “G”, “N” or “Z”
panels.
E. Check the lines to and from the local energy
master box if “D” panel is provided.
2. REMOTE TROUBLE lamp illuminated and buz-
zer sounding on “S” panel:
A. Check the lines to and from the 4293 Re-
mote Station.
B. To isolate the “trouble” to a particular pan-
el, remove the lead between each panel (refer
to following chart) and terminal 5 of the “A”
or “AX” panel. The “trouble” signal will
stop when the lead is removed from the de-
fective panel.
PANEL TERMINAL PANEL TERMINAL
B
5 L 5
cl 5
M
5
F&G
7 N 5
H TB2
Q
22
J 24 2
5
I
.
3. Alarm-signaling devices do not operate when
system is in “alarm” condition.
A. Check “V” and “Z” panels for operation of
march time motor.
B. Check “C”, “N”, “V” and “Z” panels for
-24VDC at output terminals Gl (+,-) and G2
t+,-1.
C. Check “F” and “G” panels for -24VDC at
output terminals 3, 4 and 5.
4. Alarm-signaling devices do not operate when
system is in “drill” condition.
A. Check operation of “D” panel “drill” relay
K2.
B. Refer to number 3 steps A, B and C.
5. Standby battery fails to maintain full charge.
A. Check setting of “R” panel resistor R2.
B. Check operation of “Y” panel resistor R2
and the operation of the automatic charging
circuit.
6. Local energy master box fails to trip when sys-
tem is .in “alarm” condition.
A. Check the lines to and from the box.
B. Check the “D” panel circuitry.
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