FlashGuard 2000B Medium Intensity Lighting System Troubleshooting Guide Table of Contents Flashhead (Strobe) Troubleshooting Flowchart pg. 2 Multiple Strobe Troubleshooting Flowchart pg. 3 Flashhead Problems pg. 4 Multiple Strobe Problems pg. 7 Flashhead Isolation Test pg. 9 Power Supply Isolation Test pg. 10 Status Indicators pg. 11 Tools Required pg. 11 Recommended Spare Parts pg.
FlashGuard 2000B Troubleshooting Guide Flashhead (Strobe) Problems START Flashhead works in at least one mode? No Are all of the LEDs OFF? No Yes Yes Section 1, pg. 4 Yes Day mode strobe is OK, Night strobe out? Control Power ON, High Voltage OFF? Section 2, pg. 4 No Control Power and High Voltage Both ON ? Yes Section 3, pg. 5 Section 4, pg. 5 Yes No Night mode strobe is OK, Day strobe out? Yes Section 5, pg. 5 Yes Section 6, pg.
FlashGuard 2000B Troubleshooting Guide Multiple Strobe Problems START Only one strobe is acting unusual? Yes . Go to “Strobe problems” flowchart, preceding page No Strobes are flashing out of sync. Yes Section 9, pg. 8 Yes Section 10, pg. 8 Yes Section 11, pg.
FlashGuard 2000B Troubleshooting Guide 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 Cause: Power supply interlock switch not engaged. Diagnostic Test: Press the power supply interlock switch and hold it down. Corrective Action: Close the unit – the system should operate properly.
FlashGuard 2000B Troubleshooting Guide Section 3 Flashhead will not operate in any mode. Control power indicator on, high-voltage board LED indicator on. Possible Cause: Diagnostic Test: Trigger control board defective, or incorrect DIP switch setting. Perform “Flashhead Isolation Test” (pg. 9) and “Power Supply Isolation Test” (pg.10) Also compare trigger board DIP switch settings with default settings in manual. Corrective Action: Set DIP switches according to specifications.
FlashGuard 2000B Troubleshooting Guide Possible Cause: Diagnostic Test: Day capacitor/s or 20Ω resistors faulty, or connection loose/open. With all conductors attached, check resistance across the terminals of any C2 capacitor. Resistance should be @ 40Ω Ω. Corrective Actions: 1. If resistance is near 0Ω Ω , one or more C2 capacitors is shorted. Remove conductors to each capacitor, and individually check / replace each capacitor. 2.
FlashGuard 2000B Troubleshooting Guide Section 7 Flashhead flashing slow (15 – 20 flashes per minute), strobe alarm on. Possible Cause: Diagnostic Test: Mis-configured or defective sync monitor board. Ensure the DIP switches on the sync monitor board are set correctly per the manual. Visually verify that the red LED on the sync monitor board is pulsing at 40 fpm. Corrective Action: If the DIP switch settings are correct, and the red LED is not pulsing at 40 fpm, replace the sync monitor board.
FlashGuard 2000B Troubleshooting Guide Section 10 All lights are in sync, but there is a double-flash, or flashing faster than 40 flashes per minute (fpm). Possible Cause: Diagnostic Test: More than one sync monitor board is set as master. Inspect the DIP switches on each sync monitor board. In the master power supply, DIP switch S1-4 should be set to “OFF,” which is the master position.
FlashGuard 2000B Troubleshooting Guide Flashhead Isolation Test Disconnect the seven conductor cable from power supply at terminal block TB2.
FlashGuard 2000B Troubleshooting Guide Power Supply Isolation Test Leave the seven conductor strobe cable disconnected from the power supply at terminal block TB2. Install a jumper wire between terminals 5 and 6 to simulate the interlock switch being depressed. Install a neon lamp (Radio Shack catalog # 272-1102, Honeywell Part # 77-2342) across the trigger output. For the FG2000B, install the neon lamp in terminals 3 and 4 on TB2.
FlashGuard 2000B Troubleshooting Guide Status Indicators Control Power ON • Located on the control panel (top center), this indicator is illuminated whenever input power is present and the power supply interlock switch is engaged. High Voltage Neon Lamp • Located on the high voltage circuit (top) board, this lamp indicates that the high voltage circuits are active. • Extreme caution should be used if the neon lamp is on.
FlashGuard 2000B Troubleshooting Guide 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: C3 CA706A441EK Day Capacitors: C2 (A-F) 77-1167 6 Amp Fuse: F1 DP-1019 (Qty 2) 630mA fuse: TB-F1 277-3939 PC Board, Diode 277-3937 PC Board, High Voltage 277-4163 PC Board, Sync/Monitor 277-5014
FlashGuard 2000B Troubleshooting Guide Page 13