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Unread 21-01-2009, 22:00
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
Location: Wheeling, IL
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Re: Power Distribution Board - Red LEDs on

It sure looks like you received one of the boards with the FETs in place. From your photos, I would expect to see LEDs turned on for any outputs that have no circuit breakers. However, I cannot explain why some are ON and some are OFF. It may be due to manufacturing tolerance in the resistors for the sense circuits. Do the LEDs on the high current outputs turn off when the motors are running? Perhaps someone with more experience using the PD as designed will answer when they see this thread.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.