Mr.T Posted July 31, 2023 Report Share Posted July 31, 2023 Good Evening the Forum Does anybody have a picture of the circuit board inside a smiths rev counter or know how the board is wired. I was trying to tidy mine up. The dial was loose and the white inside was looking a little tatty. Unfortunately I undid all the screws and it fell apart. I managed to refit the circuit board in its place and screw this back together. I tightened the dial faceplate which was loose. Painted the outer case and as I was putting back together noticed a couple of wires had come loose. A red and a black. I soldered them back and then found the blue component had fell off. What a day so I now have a great looking gauge but it's not working as unsure where this blue component should be soldered on. I know it's a long shot but maybe somebody may know how to repair it or maybe its down to the scrapyard. Incidents its out of a mk 3 spitfire. The ref RVC 2414/01F. I have picture pre the blue component falling off but its not good enough to tell where it should go. I don't even know what the blue component is. I think I got the black and red wires back correctly. I know I am clutching at straws. Thanks for any advice Martin Link to comment Share on other sites More sharing options...
Morgana Posted September 11, 2023 Report Share Posted September 11, 2023 A photo would be very helpful! I haven't personal experience of fixing one, but I can't think it's too complicated to reverse-engineer if you have a good picture of both sides of the circuit board. Link to comment Share on other sites More sharing options...
RedRooster Posted September 12, 2023 Report Share Posted September 12, 2023 The blue thing is proabaly a capacitor. Link to comment Share on other sites More sharing options...
RedRooster Posted September 12, 2023 Report Share Posted September 12, 2023 And this. smiths gauges repair.pdf Link to comment Share on other sites More sharing options...
Mr.T Posted September 12, 2023 Author Report Share Posted September 12, 2023 Many thanks for the offer and advice. I did find a previous photo I had which with close inspection did show how the blue component was soldered. However it still didn't work. I don't think it helped falling off my work bench. Had a couple more goes but no luck but managed to source a very reasonable priced used one. Tatty outer case and bezel. Have shaped mine over and now have a good looking working rev counter. Now it's solved do I need to close this topic. Unsure how to do this as from is very new to me. Link to comment Share on other sites More sharing options...
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