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August 21, 2018, 03:12:20 PM
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| | |-+  F7 DCC A Unit - No Power
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Author Topic: F7 DCC A Unit - No Power  (Read 196 times)
in2tech

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« on: June 21, 2018, 08:39:42 PM »

So it appears I have no power to one of my A Unit's. And I am not sure but it seem's like it happened going over a switch. Can it reset the programming number some how? I tried the default 3 and the previous number that had worked for over a year. Also tried just the light with that F10 combination thing I have done a million times and nothing. It's looking bad and makes me sad Sad

Is there a way to test it with a battery some how? I thought I saw some one mention one time using a 9 V but could be very wrong.

Thanks for your help! And possibly darn the bad luck!

BTW, I hooked the DC Tech II unit back up after this happen ( didn't want to ruin my last F7 ), put them in the F7 DCC cases hoping they just needed a nap, and that when I get them back out and hook backup the Bachmann EZ Control System, everything will work again Smiley I think it is called Voodoo Smiley
« Last Edit: June 21, 2018, 08:42:33 PM by in2tech » Logged
in2tech

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« Reply #1 on: August 17, 2018, 02:44:26 PM »

How can I test the motor with a meter or something for continuity, or do I have to un-solder it, and if so how do I test it at that point? Just want to know if it's the motor. If it the DCC board I'll just buy a new locomotive!

Thanks for your help!
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spookshow


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« Reply #2 on: August 19, 2018, 10:29:08 AM »

Sounds like the decoder is fried. If you want to test the motor, you could disconnect the orange and gray wires from the decoder board and apply current to them directly (using a 9v battery or whatever).



-Mark
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spookshow


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« Reply #3 on: August 19, 2018, 10:29:55 AM »

Sounds like the decoder is fried. If you want to test the motor, you could disconnect the orange and gray wires from the decoder board and apply current to them directly (using a 9v battery or whatever).



-Mark
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