Problem with trailing powered A unit | O Gauge Railroading On Line Forum

triplexOGR Forum Member DIGITAL SUBSCRIBER

This morning I was starting to run a set of Delaware & Hudson PA Alcos (MTH 20-2633-1). When I powered up the bell started ringing and I could not get it to stop. Then, as I put the AA in forward it wouldn't move. So, I separated the two A units and tested the lead powered A unit. It ran fine. No bell and plenty of power. So, what's going on with the trailing powered A unit? Slave board failure? This is a set with Proto-Sound 2 and 3 volt circuit boards. I swapped out the battery for a BCR-2 but still no luck with the trailing A unit. Does anyone on the Forum ever had such a problem and what was the solution?

5/5/244:12 PM

Original Post

Replies sorted oldest to newest

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Sounds a lot like the slave board has failed.

5/5/244:27 PM

GGGOGR Forum Member

Could be a pinched wire or motor lead short also, since the bell is triggered. Or as John said slave board fet failure. G

5/5/244:49 PM

Add Reply

Sign In To Reply

<div id="{%=id%}" class="reveal-modal small h-alert-modal-popup" data-reveal>
    <div class="first-modal-focus focus-utility-element" tabindex="0" aria-label="Inside Modal"></div>

<h4 id="{%=id%}_title" class="margin-bottom-10 popup-title"></h4>
    <div id="{%=id%}_body" class="margin-bottom-10 popup-body">
        </div>

<ul id="{%=id%}ButtonGroup" class="button-group h-popup-buttons even-button-group even-1">
    <li id="{%=id%}Okay_buttonContainer"><a id="{%=id%}Okay" href="javascript:void(0);" class="button success no-margin-bottom h-alert-modal-ok-button" role="button">OK</a><script type="text/javascript">
        (function() {
            function {%=id%}Okay_click(event, data) {
            {%=id%}Popup.hide();
        }
        
                $('#{%=id%}Okay').on('click', {%=id%}Okay_click);
        })();
    </script></li></ul><a href="javascript:void(0);" class="close-reveal-modal" aria-label="Close Modal">&#215;</a><div class="last-modal-focus focus-utility-element" tabindex="0"></div>
</div>
<script type="text/javascript">
        (function() {
            {%=id%}Popup = new SS.Popup.ModalPopup('{%=id%}');
        })();
    </script>