Re: Brimsdown-The last grand project.
Posted: Thu Jan 14, 2021 9:17 am
Since the last post, I have been progressively working my way through the outstanding faults and there were rather more than I had hoped for. I also found one that was totally unexpected whilst testing the two roads with a double header isolating circuit. Road 8 worked fine, but on selecting road 6 the loco set off without the controller being switched on. Tests revealed that there was 12volts DC on the track permanently. This could only be coming from the circuit board that did the switching for road 6 and so it proved. On inspecting the PCB nothing appeared amiss, but the meter showed a short allowing the relay supply to feed onto the rail, although a track had been cut. A further attack with a sharp blade cured the problem, a tiny whisker of copper must have been causing the problem.
I had made a list of jobs that required access to the underside of baseboards, but the above was not one of them.
Over the last couple of days, I have been working my way through them until yesterday evening I reached the bottom of the list. So now, in theory, I should be able to reassemble everything and all should function as intended.
However before I can do that, I have a couple of other jobs I wish to do. Whilst the boards were out, I took the opportunity to extend the goods yard head shunt, which needs access from the outside of the layout. This new section of track needs to be wired onto the existing track and I have an additional piece of track to lay on the first baseboard that needs to be installed on reassembly, which will also need to be wired in from underneath, so may as well do that while I am about it. So final testing will have to wait a day or two yet.
Regards
Tony.
I had made a list of jobs that required access to the underside of baseboards, but the above was not one of them.
Over the last couple of days, I have been working my way through them until yesterday evening I reached the bottom of the list. So now, in theory, I should be able to reassemble everything and all should function as intended.
However before I can do that, I have a couple of other jobs I wish to do. Whilst the boards were out, I took the opportunity to extend the goods yard head shunt, which needs access from the outside of the layout. This new section of track needs to be wired onto the existing track and I have an additional piece of track to lay on the first baseboard that needs to be installed on reassembly, which will also need to be wired in from underneath, so may as well do that while I am about it. So final testing will have to wait a day or two yet.
Regards
Tony.