Technical data

Chapter 8: Troubleshooting
Series SPB Audio Boosters Manual, Revision A
8-8
1. Check wiring to AUD1 OUT terminals and ensure there is no short.
2. Troubleshoot audio circuit for incorrect wiring of an appliance or a failed appliance.
8.2.10 Procedure J
If the green AC LED is “ON,” the yellow TROUBLE LED is “ON,” and D30 AUD1 OPEN LED
is “ON,” the supervision circuit is unable to read the 1/2W EOLR: This can be caused by:
Missing or Improper 1/2W EOLR.
Open or loose wiring on the AUD1 OUT terminals.
Open AUD1 OUT appliance circuit.
Perform the following:
1. Check that 1/2W EOLR is in place and is UL Listed 10K Ohm
2. Check the wiring to AUD1 OUT terminals and ensure there is no open circuit.
3. Troubleshoot the audio circuit for incorrect wiring.
8.2.11 Procedure K (SPB-160 Only)
If the green AC LED is “ON,” the yellow TROUBLE LED is “ON,” and D21 AUD2 SHORT
LED is “ON,” the supervision circuit is unable to read the 1/2W EOLR: This can be caused by:
Audio appliance connected is shorted.
Shorted connection on the AUD2 OUT circuit.
Circuit installed improperly.
Perform the following:
1. Check the wiring to AUD2 OUT terminals and insure there is no short.
2. Troubleshoot the strobe circuit for incorrect wiring of an appliance or a failed
appliance.
8.2.12 Procedure L (SPB-160 Only)
If the green AC LED is “ON,” the yellow TROUBLE LED is “ON,” and D18 AUD2 OPEN LED
is “ON,” the supervision circuit is unable to read the 1/2W EOLR: This can be caused by:
Missing or Improper 1/2W EOLR.
Open or loose wiring on the AUD2 OUT terminals.
Open AUD2 OUT appliance circuits.
Perform the following:
1. Check that 1/2W EOLR is in place and is UL Listed 10K Ohm, 1/2W EOLR.
2. Check the wiring to AUD2 OUT terminals and insure there is no open circuit.
3. Troubleshoot the audio circuit for incorrect wiring.