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  1. * The best way to use this video is to watch and write down the desired options, then exit and program your LCD. if you try and program while watching the video your LCD will timebout and none of the settings will be saved and you’ll have to keep starting over because of the length of Kyles explanations . Aftermarket LCD Display user manual (also applying for Sondors eBike LCD) KT3-LCD_short_en.pdf (english language 2-page manual) KT3-LCD_full_en.pdf (english version full manual, 2013) KT3-LCD_full_de.pdf (german version full manual) Programming the KT-LCD3 and KT-LCD8H Everything you need to know EDIT: This manual is the current version for the KT-LCD3. It includes different behavior in some of the settings and lists C13 (regenerative braking... not applicable to Sondors) and C14 - PAS assist strength tuning (applicable to Sondors) KT-LCD3_2015.pdf (English, v3.0, 2015)
  2. Since the LCD user manual's chapter about the parameter copy fuctionality is a bit ambiguous, here's a step by step guide about how to set up the LCDs and the wiring. Disclaimer 1: In order to connect the two LCDs, you'll need to build an adapter cable by yourself! This requires some soldering skills, as well as some electronics tools for working on cable wiring. Disclaimer 2: I used third-party displays I had purchased from AliExpress. I DO NOT know if this works with Sondors branded LCDs or with a mixture of both, because of the various communication protocols. The user manual says that parameter copy is working with displays using the LCD3 communication protocol. As far as I know, the Sondors branded LCDs and third-party LCDs both used the LCD3 protocol. Step 1: Build your adapter cable Since the LCDs have those small round black/green male-type connection plugs, it is recommended to build up your adapter cable by using the opposite female-type connection plugs. Those plugs can be found on extension cables for the LCD for example. I simply took appart two spare extension cables and soldered the open end wires together, following the above image. Please pay attention to the cross-wiring of the green and yellow wires! Normally, every pin is wired to it's corresponding pin on the other side. In our adapter cable, pin 4 of the source display plug is wired to pin 5 of the target display plug (green line) and pin 5 of the source display plug is wired to pin 4 of the target display plug (yellow line). It is also recommended to put an on-off-switch to the red and black lines connecting the power source, such as the bike battery or any other 36V power supply. Step 2: Set the source display to act as a data source It is recommended that the source display is NOT password protected and the C9 parameter is set to C9=0! This setup should be done while the source display is still connected to your bike. In order to set up your LCD as source dislpay, you need to enter the programming mode and go to the C-parameter settings. Have a look at this post how to do this. Go to the "C11 Attribute Selection Mode" and set the C11 value to 2 (C11=2). Then finish the programming procedure. This enables your display to be the data source for copying parameters. If setting the C11 value to 2 is successful, the display should show the following after finishing the programming mode: Switch off the display and disconnect it from your bike. Step 3: Connect the two displays 3.1 Detach both LCDs from their bike's controllers. 3.2 Connect both LCDs using the adapter cable as shown in the image of Step 1. 3.3 Connect the adapter cable to the power source. 3.4 Switch on the power source. Step 4: Perform the parameter copy operation 4.1 Switch on the source display by pushing its on-off-button. 4.2 Switch on the target display by holding down the on-off-botton until it activates. Within 5 seconds after activation, simultaneously press the up- and down-arrows of the target display for at least 2 seconds. Then the copying process is finished. The actual parameter copying process as very fast and is done in an instant. If successful, the display should now show the following: Step 5: Finishing touches After successful copy, switch off both displays and the power source and disconnet all components. Do not forget to revert the C11 value of the source display back to where it was (probably C11=0). Hint 1: If the source display was password protected (C9 parameter), keep in mind that the password has not been copied to the target display. Hint 2: The C11=2 source setting of the source display has also not been copied. It makes no sense to copy this parameter to the target display. After re-installing the target display to your bike, it should work as normal again. However, it is recommended to check the overall programming.
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