Instruction manual

Table 7-1
Trouble LED Procedure Cross Reference
D24
LED
(Yellow)
Trouble Description
Troubleshooting
Procedure
D24 Main Trouble Indicator ------
D59 AC LED
“OFF”
No DC Power to the PC Board from the Power Supply
(SAPS).
Procedure A
D26 BAT TRB Battery voltage is below 18.5 VDC or battery is
missing.
Procedure B
D27 AC TRB AC power input voltage missing from TB1. Procedure C
D28 AUX TRB External EOLR missing when Jumper W1 is removed. Procedure D
D22 AMP TRB Amplifier failure or jumpers J1, J3 or J4, J5
(SPB-160 only) are setup incorrectly.
Procedure E
D77 EXP
SHORT
Expansion Circuit is Shorted Procedure F
D76 EXP OPEN Expansion Circuit is Open Procedure G
D34GF Ground Fault Trouble Procedure H
D32 AUD1
SHORT
Audio 1 Notification Appliance Circuit is Shorted Procedure I
D31 AUD1
OPEN
Audio 1 Notification Appliance Circuit is open Procedure J
D29 AUD2
SHORT
Audio 2 Notification Appliance Circuit is Shorted.
(SPB-160 Only)
Procedure K
D30 AUD2
OPEN
Audio 2 Notification Appliance Circuit is open.
(SPB-160 Only)
Procedure L
D35 STRB1
SHORT
Strobe Notification Appliance Circuit is shorted.
(SPB-80/4 Only)
Procedure M
D36 STRB1
OPEN
Strobe Notification Appliance Circuit is open.
(SPB-80/4 Only)
Procedure N
D37 STRB2
SHORT
Strobe Notification Appliance Circuit is shorted.
(SPB-80/4 Only)
Procedure O
D38 STRB2
OPEN
Strobe Notification Appliance Circuit is open.
(SPB-80/4 Only)
Procedure P
BEFORE PERFORMING ANY OF THE FOLLOWING TROUBLESHOOTING PROCEDURES,
THE PRELIMINARY TROUBLESHOOTING INFORMATION AT THE BEGINNING OF THIS
“TROUBLESHOOTING” SECTION MUST BE READ, UNDERSTOOD, AND FOLLOWED.
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