Trailing A uint is stuck in conventional mode | O Gauge Railroading On Line Forum

c6usaOGR Forum Member DIGITAL SUBSCRIBER

I have 20-2548-1 ABA PS2. When I went to stop the engine the rear A unit just keep running so I power down the track all stopped. Then reapplied power the rear engine just took off again as if it were in conventional mode. I took all three and put them on their sides and did a factory reset got the same thing. The Lead A unit works fine. Any suggestions.

Thanks Henry

11/12/228:00 PM

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Gerald JacksonOGR Forum Member

The rear unit board is bad. The MTH parts website should have the replacement.

11/13/229:30 AM

c6usaOGR Forum Member DIGITAL SUBSCRIBER

@Gerald Jackson posted:
The rear unit board is bad. The MTH parts website should have the replacement.

Thanks

Henry

11/13/222:04 PM

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

This is the slave board.

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11/13/225:54 PM

Alan MancusOGR Forum Member DIGITAL SUBSCRIBER

The FET failed shorted that's why the motor won't shut off; they can easily be replaced!

Alan

11/13/226:59 PM

c6usaOGR Forum Member DIGITAL SUBSCRIBER

New board was order hopefully it will be here soon. Thanks to all for your input

Henry

11/13/229:50 PM

Alan MancusOGR Forum Member DIGITAL SUBSCRIBER

YW

Alan

11/14/227:44 AM

c6usaOGR Forum Member DIGITAL SUBSCRIBER

I installed the new board today and we are back up and running. 👍

11/16/228:58 PM

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