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Libra speedo http://www.gtmdrivers.com/forum/libra-speedo-t4447-15.html |
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Author: | Elansprint [ Fri Feb 07, 2020 8:09 pm ] |
Post subject: | Re: Libra speedo |
Well excellent service from AK speedo's for the new lcd display ordered wednesday evening from website arrived 9.30am friday morning fitted in easily and the re assembly was simple. Powered the unit up on the bench for the stepper motor to reset to its home position then pressed on the pointer at 0 mph fitted glass and bezel back on then fed square wave from signal generator into input to test operation all was well fit back in car tomorrow Ian |
Author: | catsam [ Wed Feb 26, 2020 9:45 am ] |
Post subject: | Re: Libra speedo |
hi ian i m trying to attempt to make a speedo calibrator using a arudino for my k3 Quote: then fed square wave from signal generator into input to test operation i think i have a 5v square wave signal coming from the standard rover box it sounds like from your post you might no this have i got his right thanks paul |
Author: | Elansprint [ Wed Feb 26, 2020 5:13 pm ] |
Post subject: | Re: Libra speedo |
Paul I fed in square wave from signal generator and gradually turned up the amplitude from zero so I did not measure the amplitude but if it is fed from proximity switch on the car guess this is 12V. It looks like the gen was set to 6.5V pk-pk so this is +/- the speedo 0V so looks like the threshold is around 6.5Vdc you can try 5V but may be slightly low Ian |
Author: | catsam [ Sun Sep 26, 2021 4:11 pm ] |
Post subject: | Re: Libra speedo |
Hi i know this post is old but i have just got a libra and the Libra speedo screen is not working Does anyone have a gtm Libra speedo for sale the VDO/EBC one Thanks Paul |
Author: | Tim Rowe (1130) [ Sun Sep 26, 2021 4:46 pm ] |
Post subject: | Re: Libra speedo |
catsam wrote: Hi i know this post is old but i have just got a libra and the Libra speedo screen is not working Does anyone have a gtm Libra speedo for sale the VDO/EBC one Thanks Paul If it is just the lcd not working they are fairly easy to replace. |
Author: | PhilBSpyder [ Mon Sep 27, 2021 9:54 am ] |
Post subject: | Re: Libra speedo |
Available on EBay https://www.ebay.co.uk/itm/124526024445 ... Sw4zdf~xMY |
Author: | sanzomat [ Mon Sep 27, 2021 1:28 pm ] |
Post subject: | Re: Libra speedo |
http://www.akspeedo.com/vdo-lcd-repair.php I think these are the parts you need... |
Author: | catsam [ Mon Sep 27, 2021 1:41 pm ] |
Post subject: | Re: Libra speedo |
Thanks that looks like the display I need thanks |
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