Barry, I received your 2nd edition to trouble shoot and repair DCS control systems. We used in this past Thursday night on our Club O Guage Layout. Before we could run TMCC without any problems, but using DCS/TIU/Z-4000 our signal strength was 2.0 or lower, and too many messages on the hand held, of the DCS System. We made several changes on hook ups, track cleaning, pick up cleaning, and now our signal strength is low of 8 up to 10, and all seems ok. I'm leaving your manual at the club, so all members can use it when needed. I think the Hard Copy is the best way to go, but I did pay for the down load as well. Thanks again Berry B.
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