Thanks for the input. Checked draw bar engine & tender there was no continuity between the pins I then disconnected the speaker plug & 1 wire off the speaker. I then checked for continuity from draw bar to speaker & then to coupler no broken wires. I repeated same test eng. drawbar wires 2 brown & 2 black to pcb ( not connected to pcb) With tender connected to eng. I have found continuity to pcb I than checked solder joints on pcb where female plugs are Checked all wires with male plugs All showed continuity Checked switches for smoke, chuff and remote or transformer all good. everything I thought was a factor I checked for continuity I hooked the smoke & fan unit separately fan & heating element worked. back where I started Runs, lights, coupler but no sound or smoke. I must be missing something
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