I have chipped an old Hornby 125 (made in GB) with a TI chip. I have another CL43 in GNER, with made in China, to chip. I am having major problems with this one. It appears to use the metal body and has a metal bracket that holds the spring and brush for motor. I have insulated the bracket and wired to the spring, red to track pick-up and orange to spring. When I tried it, it shot off the programming track. When I put it back on the T1 glowed well in the middle and burnt the encapsulation covering the decoder. I noticed that the orange cable had got caught in the gear wheels but these appear to be plastic. The metal chassis is connected to the track (red pick-up).
I plucked up courage and fitted a second decoder making sure that the wires couldn't snag. This time as soon as you put it on the track it jerks slowly along whatever the ESU is set to. I have placed the chip back into the other CL43 and it works fine.
I have used a meter to show that the brush pick-up is isolated and checked the wiring connections more than a dozen times. I have left the suppression cap in. I have used loco's I have 2 off and using the same settings for each have tried them both with suppression and then one with and one without. I couldn't see any difference. This may be because I only have a 5' programming track as still making baseboards for my layout.
Any ideas/help gladly received.
Ian M
I plucked up courage and fitted a second decoder making sure that the wires couldn't snag. This time as soon as you put it on the track it jerks slowly along whatever the ESU is set to. I have placed the chip back into the other CL43 and it works fine.
I have used a meter to show that the brush pick-up is isolated and checked the wiring connections more than a dozen times. I have left the suppression cap in. I have used loco's I have 2 off and using the same settings for each have tried them both with suppression and then one with and one without. I couldn't see any difference. This may be because I only have a 5' programming track as still making baseboards for my layout.
Any ideas/help gladly received.
Ian M