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| Fried! |
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Posted by: RailCop - 06-20-2009, 11:11 AM - Forum: DCC
- Replies (7)
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Well, last night I attempted to install an MRC sound decoder (diesel) into an Athearn F-7 (not DCC ready). Things were moving along fairly well and I had the two power pick up wires and the two motor control wires installed, checked and double checked. The front head light was the only connection left. I also had to figure a way to mount the speaker. At this point I decided to test the decoder on the program track. It checked out fine and I entered the engine number for the address. I then placed it on the track and gave it a try. It immediately sounded off, engine rumble, bell, horn. WOW! Cool, I did it first time. Then I moved the throttle a little and SNAP! When the engine moved forward ever so slightly the blue wire, the hot lead for the headlight, touched something on the frame, sparked, and that was that. It shorted out the entire decoder. All I could hear was a buzz-click, buzz-click. The buzz was the short, the click was the dcc system circuit breaker kicking out. From that moment on the decoder is toast. It gets hot to the touch every time I try to run it. Well, I will salvage the speaker anyway. The $67 decoder is now history.
Lesson learned; if you have any loose wires be sure to cover the end with tape before applying power for testing. Guess I'll install a non-sound decoder for the time being.
Later,
KT
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| Just me |
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Posted by: Triplex - 06-19-2009, 08:27 PM - Forum: Hobo's Camp
- Replies (11)
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I stuck with the old Gauge for a long time. Guess I don't like change. But now it's finally changed enough that my discomfort exceeds my addiction.
So... I'm back.
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| Cab control wiring question |
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Posted by: tv_man - 06-19-2009, 05:29 AM - Forum: Engineer's Technical Workshop
- Replies (9)
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I started wiring my layout with cab control to facilitate two trains running simultaneously. I have two controllers (DC) and all the track sections are supplied with dpdt switches, so I could isolate the sections on both sides and wire them with two wires running from each dpdt switch to the track but somewhere I remember reading, that it is enough to isolate only one track which would be connected to the dpdt switch while the other track (in all sections) would be connected to a common wire running back to the controllers. Apparently this would still work with two trains, but I figure it might have some problems which would make the fully separated sections preferable. Does anyone with experience with cab control have any opinions on this subject?
Hopefully this wasn't too confusing...
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| Summer Structure Challenge |
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Posted by: ngauger - 06-19-2009, 04:18 AM - Forum: Forum Announcements
- No Replies
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ONLY TWO DAYS LEFT TO JOIN IN!!!
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