July 15, 20241 yr 30 minutes ago Add bookmark #1 Hi My son has a muddyfox electric advenue e bike the 36v control display was hit and miss now it's stopped working all together I've split it open and it's a 792 I cannot find one anywhere on the Internet loads of 790's. I bought a 880 but after some reading I believe it's for a different controller KT ? Any help on fixing this issue would be greatly appreciated. Below is a image of the panel I'm trying to source/replace Thanks Andy.
July 15, 20241 yr 30 minutes ago Add bookmark #1 Hi My son has a muddyfox electric advenue e bike the 36v control display was hit and miss now it's stopped working all together I've split it open and it's a 792 I cannot find one anywhere on the Internet loads of 790's. I bought a 880 but after some reading I believe it's for a different controller KT ? Any help on fixing this issue would be greatly appreciated. Below is a image of the panel I'm trying to source/replace Thanks Andy.[ATTACH=full]58779[/ATTACH] You have to show a picture of the connectors, which gives a clue to whether it's analogue or digital. Many of these things look the same and even have the same number, but they work differently. This one with 4 wires for the panel and two for the lights is analogue: https://vi.aliexpress.com/item/32953118814.html?gatewayAdapt=glo2vnm This one with 5 wires is probably digital: https://www.cicloone.it/display-led-790-con-funzione-luce/ It's difficult to tell when they have the moulded connector: https://www.alibaba.com/product-detail/790-LED-Display-For-Bafang-BBS_1600228276304.html Edited July 15, 20241 yr by saneagle
July 16, 20241 yr My original one has the green plug 5 pin connector. Thanks for your help The only ways to know what type you have is by one of these methods: 1 Cut it open and look at the markings on the pcb. 2. Open the controller and look at the markings on the pcb 3. Cut into the cable and measure the voltage on the green wire - only works if you can switch it on. 4. Open the controller and measure the voltage on the green wire - only works if you can switch it on. You can get some temporary operation from your bike by cutting off the control panel and joining the red and blue wires. Don't forget to disconnect it first because the red wire is permanently live. When you plug the connector back in with those wires bridged, you'll get level 1 pedal assist and normal throttle if you have one. It's probably digital but it really needs to be confirmed. With the digital ones, it's always better to buy them as a matched pair with the controller because you need to match the comms protocols. If you're going to replace the controller too, you can get more or less any one you want with its LCD. You'll probably have to do some soldering and wiring to fit a replacement controller.
July 16, 20241 yr Author I think I need the the kimiss control panel to suit this controller I've tried the 790 otufan one lights up also does not power the motor though
July 16, 20241 yr One can't get Tianjin Santroll stuff, they are OEM only. Sometimes the odd used spare might appear on ebay.
July 16, 20241 yr Author One can't get Tianjin Santroll stuff, they are OEM only. Sometimes the odd used spare might appear on ebay. What's the options then completely replace the controller and display ?
July 16, 20241 yr Yes , one is better replacing the display and controller. If one buys KT controller then one can opt to buy one of the nicer lcd's to go with it, for five power levels of current . LCD3 is very popular , lcd4 is tiny and discreet otherwise their are some ten other lcds's to choose from . LCD1 & 2 are basic so these are only best to fit to stop others tinkering with settings.
July 16, 20241 yr I think I need the the kimiss control panel to suit this controller I've tried the 790 otufan one lights up also does not power the motor though https://amzn.eu/d/0fmwa3Bf
July 16, 20241 yr https://amzn.eu/d/0fmwa3Bf If you read the reviews, none of them worked, presumably because they weren't compatible.
July 16, 20241 yr What's the options then completely replace the controller and display ? Did you not read my post #4?
July 16, 20241 yr Author It's only a cheap electric bike can anyone recommend a controller and display kit to buy ? I have the KT 880 Display already that I bought to try could I buy this controller and make them work ?
July 16, 20241 yr It's only a cheap electric bike can anyone recommend a controller and display kit to buy ? I have the KT 880 Display already that I bought to try could I buy this controller and make them work ? [ATTACH=full]58787[/ATTACH] What about its connectors? Please post actual links, not photos of the listing, which don't give any information.
July 16, 20241 yr Author Did you not read my post #4? Yes just not sure what kit to buy with both controller and display. Thanks
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