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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
Status Indicators
Tools Required
Recommended Spare Parts
pg. 12
pg. 11
pg. 11
pg. 10
FlashGuard 2000B Medium Intensity Lighting System
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FlashGuard 2000B Troubleshooting Guide Flashhead (Strobe) Problems 4 Page 2 bright? Yes Section 8, pg. 8 strobe too Night mode No slow? Yes too fast or too Section 7, pg. 7 Strobe flashing No to night mode? Yes switch from day Section 6, pg. 6 Strobe won’t No Day strobe out? Yes strobe is OK, Section 5, pg. 5 Night mode No strobe out? OK, Night Yes Section 4, pg. 5 strobe is Day mode Section 3, pg. 5 Section 2, pg. Section 1, pg. 4 Yes Yes Yes Yes mode? Both ON ? OFF? OFF? least one High Voltage
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FlashGuard 2000B Troubleshooting Guide Multiple Strobe Problems . Page 3 stay in day mode? Yes Section 11, pg. 8 night, but slaves Master switches to No than 40 FPM? page are flashing faster Yes Section 10, pg. 8 flowchart, preceding ‘double flash’ or Go to “Strobe problems” Strobes have a Yes No unusual? sync. is acting flashing out of No Yes Only one strobe Section 9, pg. 8 Strobes are START
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FlashGuard 2000B Troubleshooting Guide Section 1 Flashhead does not operate in any mode, no LED’s on. Possible Cause : Input power incorrect. Diagnostic Test : Supply correct input power. Possible Cause : Power supply interlock switch not engaged. Diagnostic Test : Press the power supply interlock switch and hold it down. Close the unit – the system should operate properly. Possible Cause : Diagnostic Test : Remove all three circuit boards and check for damage. Remove the photocell wiring from
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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 : Trigger control board defective, or incorrect DIP switch setting. Diagnostic Test : 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. Set DIP switches according to specifications. If no trigger output is observe
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FlashGuard 2000B Troubleshooting Guide Possible Cause : Ω Diagnostic Test : With all conductors attached, check resistance across the terminals of any C2 capacitor. Resistance should be @ Ω Ω . 1. If resistance is near 0 Ω Ω , conductors to each capacitor, and individually check / replace each capacitor. 2. If resistance is too high, one or more C2 capacitors may a loose connection, or one or more of resistors R2, R3, and R4 may be defective or have a loose connection. Tighten connections to al
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FlashGuard 2000B Troubleshooting Guide 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 the manual. Visually verify that the red LED on the sync monitor board is If the DIP switch settings are correct, and the red LED is not pulsing at 40 fpm, replace the sync monitor board. Possible Cause : is defective. Diagno
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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 : More than one sync monitor board is set as master. Diagnostic Test: 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. In all the other power supplies, this switch 4 should be set to “ON,” which is the slave position Reconfi
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FlashGuard 2000B Troubleshooting Guide Flashhead Isolation Test Disconnect the seven conductor cable from power supply at terminal block TB2. Using an Ohmmeter, check the resistance between the conductors of the disconnected flashhead cable, and compare to the expected values: FG 2000B White Strobe (cable disconnected from power supply) #1 Red: Open to all conductors #2 Brown: Open to all conductors Ω Ω to black, open to all others #5 White: < 5 Ω Ω #7 Ground: Open to a ll conductors Flashhe
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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. Apply power to the system and insure the following: Using a v
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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. • Located on the sync/monitor (middle) board, this LED will be green when t
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FlashGuard 2000B Troubleshooting Guide Recommended Spare Parts Flashhead Spares (Upstairs) Description 12S00602 Flashtube Assembly: FT1 77-4040K Trigger Transformer: T1 77-2644 Switch, Interlock, S1 Power Supply Spares (Downstairs) Description 77-3911 Night Capacitor: C3 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 277-5014-003 PC Board, Trigger/Control 277-5016 PC B
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FlashGuard 2000B Troubleshooting Guide Page 13
