User's Manual

Maintenance
Page 23 SA-80A Installation Manual
6.3.3. Strobe Board
The Strobe board includes a high voltage supply to flash the
strobe bulb during alarms. This board includes two LED indicators
which are visible through the orange plastic, when illuminated.
The indicators are:
• LD1 – A power LED which illuminates when power is
applied.
• D2 – A lo-battery LED which illuminates when battery
voltage is low. This indicator has a cycle of two-seconds
on, and then two-seconds off. It is triggered when the
battery test fails.
A connector plugs into the Main board, at J2; refer to Table 3 for
corresponding pin descriptions.
6.4 Troubleshooting
Troubleshooting of the unit is straightforward. It is assumed that the
unit was installed according to instructions, and was operating
properly. Troubleshooting is done with the unit mounted on the
wall.
6.4.1. General Guidelines
Follow these general guidelines:
• If a problem is reported, verify the operation of the siren
unit by triggering the burglar alarm. Both the speaker and
strobe must operate.
• If only the strobe does not work, the Strobe PCB is faulty.
• If both the Strobe PCB and the Main board do not
function, the problem may be due to the Transceiver PCB
or due to the Main board.
• In all cases, check for a speaker impedance of four ohms.