Page 2 - FlashGuard 2000B Troubleshooting Guide
FlashGuard 2000B Troubleshooting Guide Page 2 Flashhead (Strobe) Problems START Flashhead works in at least one mode? No Are all of the LEDs OFF? Control Power ON, High Voltage OFF? No Control Power and High Voltage Both ON ? No Yes Day mode strobe is OK, Night strobe out? Section 1, pg. 4 Yes Yes Y...
Page 3 - Multiple Strobe Problems
FlashGuard 2000B Troubleshooting Guide Page 3 Multiple Strobe Problems . No Strobes are flashing out of sync. Yes Section 9, pg. 8 No Strobes have a ‘double flash’ or are flashing faster than 40 FPM? Yes Section 10, pg. 8 Master switches to night, but slaves stay in day mode? Yes Section 11, pg. 8 S...
Page 4 - Section 1; Flashhead does not operate in any mode, no LED’s on.; Section 2
FlashGuard 2000B Troubleshooting Guide Page 4 FLASHHEAD (STROBE) PROBLEMS Section 1 Flashhead does not operate in any mode, no LED’s on. Possible Cause : Input power incorrect. Diagnostic Test : Measure input power – it should be 120 VAC ±10%. Corrective Action: Supply correct input power. Possible ...
Page 6 - Section 6; System will not switch between day and night modes correctly.
FlashGuard 2000B Troubleshooting Guide Page 6 Possible Cause : Day capacitor/s or 20 Ω resistors faulty, or connection loose/open. Diagnostic Test : With all conductors attached, check resistance across the terminals of anyC2 capacitor. Resistance should be @ 40 Ω Ω . Corrective Actions: 1. If resis...
Page 7 - Section 7; Mis-configured or defective sync monitor board.; Possible Cause; Section 8; Replace the K2 relay.; MULTIPLE STROBE PROBLEMS; Section 9; Flashheads are operating, but out of sync.; Possible Cause; Configure sync board as referenced in manual.
FlashGuard 2000B Troubleshooting Guide Page 7 Section 7 Flashhead flashing slow (15 – 20 flashes per minute), strobe alarm on. Possible Cause : Mis-configured or defective sync monitor board. Diagnostic Test: Ensure the DIP switches on the sync monitor board are set correctly per themanual. Visually...
Page 8 - More than one sync monitor board is set as master.; Master unit switches to night mode at night, but slave units remain; Install interconnecting wiring.
FlashGuard 2000B Troubleshooting Guide Page 8 Section 10 All lights are in sync, but there is a double-flash, or flashing faster than 40 flashes per minute (fpm). Possible Cause : More than one sync monitor board is set as master. Diagnostic Test: Inspect the DIP switches on each sync monitor board....
Page 9 - Flashhead Isolation Test; Flashhead Test Results
FlashGuard 2000B Troubleshooting Guide Page 9 Flashhead Isolation Test Disconnect the seven conductor cable from power supply at terminal block TB2. Usingan Ohmmeter, check the resistance between the conductors of the disconnectedflashhead cable, and compare to the expected values: FG 2000B White St...
Page 10 - Power Supply Isolation Test; Voltage Measurements
FlashGuard 2000B Troubleshooting Guide Page 10 Power Supply Isolation Test Leave the seven conductor strobe cable disconnected from the power supply at terminal blockTB2. Install a jumper wire between terminals 5 and 6 to simulate the interlock switch beingdepressed. Install a neon lamp (Radio Shack...
Page 12 - Recommended Spare Parts
FlashGuard 2000B Troubleshooting Guide Page 12 Recommended Spare Parts Flashhead Spares (Upstairs) Part Number Description 12S00602 Flashtube Assembly: FT1 77-4040K Trigger Transformer: T1 77-2644 Switch, Interlock, S1 Power Supply Spares (Downstairs) Part Number Description 77-3911 Night Capacitor:...