Who turned out the lights?greenspun.com : LUSENET : Wiring for DCC : One Thread
Since removing one of my locos from a consist (NCE decoder/Lenz System), the lights will not turn on. How do I reprogram the decoder to get them back? Loco is a P2K GP-7 and I replaced both 1.5v bulbs with 12v bulbs when I installed the decoders. The bulbs are not burned out, they just won't turn back on. Please help! I'm still learning. Thanx.
-- Mike Carr (email@example.com), January 16, 2002
Did you turn the F0 function back on? Maybe they are just commanded off.
-- George Schreyer (firstname.lastname@example.org), January 20, 2002.
Hey, I had mine working and now only the back light comes on! In addition, none of my 6 SD7s have working headlights since installing decoders. Is there something wrong with the circuit board on the locos? Would hard wiring solve the problem?
-- Ed Merrin (email@example.com), February 02, 2002.
Turns out my problem was that 1 bulb was burned out already (front) plus 1 poor bulb connection in same loco. Guess it was just coincidental that both happened while loco was consisted. Burned out bulb was only a 1.5v that I had resisted, so resistor value probably should have been stronger. I'm just gonna stick with 12v bulbs from now on. I read that resetting cv8 to a value of 33 using register mode resets all CVs in the decoder to their factory condition. When even that didn't help, I replaced the bulbs, fixed the connection, and all is well again. I know it would've been easier to check the bulbs in the FIRST place. There's always next time...
-- Mike Carr (firstname.lastname@example.org), February 03, 2002.