Hi!
Thanks for letting me join the forum. I converted an old bicycle back in 2011 with a 36 v conversion kit and have been enjoying riding the bike ever since. But lately I have had to change a few parts due to weather taking its toll. And it is here I was wondering if anyone could help me with a problem. I had to change the ebike display next to the handlebar as it had got moisture inside. The old display had no text at all, but I was able to open it and found the text 790xxx on the print board and as a search online showed several similar displays with the text 790, I hoped one of this would do the trick. But after installation of new display I notice that it does not work as before:
Mode 0 (No LED) = No pedal assist
Mode 1 = No pedal assist
Mode 2 = Pedal assist as in mode 1 on the old display
Mode 3 = Pedal assist as in mode 2 on the old display
This means that I am not able to activate the Mode 3 full pedal assist, which I miss at times in hilly Norway
On the old display I could switch between the pedal assist and throttle using a button named "Switch", but on this display it is called "Light" and has no function as the throttle work all the time and I have then been able to have full pedal assist holding the throttle down, but it is of course a bit tiresome. I will also mention that I change the batterypack last year to another 36 V, but assume that should not change any of this logic between the controller and display ?
I did some measurements last night on the wiring between the 790 display and the G3M20211-1592-16 controller (voltage measured between Red wire and the others):
Red = VCC (41 v)
Yellow = Light ON (0V) / OFF (41V)
White = 41V
Blue = ON (0V) / OFF (41V)
Black = GND (41V)
Green = Pedal assist:
0 LED = 41 V
1 LED = 40 V
2 LED = 39 V
3 LED = 38 V
The controller is as stated an old G3M20211-1592-16 manufactured in dec 2011 and has a black enclosure, but I see the same controller can be purchased still, but then with a aluminum enclosure and according to this site, it should operate fine with 790 ebike display I bought:
www.pacha-ebike.no
One other detail, the new 790 display did not have the same connector as the old one (round), but as the wire colours was the same I did just cut the new square connector off and used the old (soldering).
If anyone could shed any light on this problem it is much appreciated!
Best regards,
Henrik
Thanks for letting me join the forum. I converted an old bicycle back in 2011 with a 36 v conversion kit and have been enjoying riding the bike ever since. But lately I have had to change a few parts due to weather taking its toll. And it is here I was wondering if anyone could help me with a problem. I had to change the ebike display next to the handlebar as it had got moisture inside. The old display had no text at all, but I was able to open it and found the text 790xxx on the print board and as a search online showed several similar displays with the text 790, I hoped one of this would do the trick. But after installation of new display I notice that it does not work as before:
Mode 0 (No LED) = No pedal assist
Mode 1 = No pedal assist
Mode 2 = Pedal assist as in mode 1 on the old display
Mode 3 = Pedal assist as in mode 2 on the old display
This means that I am not able to activate the Mode 3 full pedal assist, which I miss at times in hilly Norway
On the old display I could switch between the pedal assist and throttle using a button named "Switch", but on this display it is called "Light" and has no function as the throttle work all the time and I have then been able to have full pedal assist holding the throttle down, but it is of course a bit tiresome. I will also mention that I change the batterypack last year to another 36 V, but assume that should not change any of this logic between the controller and display ?I did some measurements last night on the wiring between the 790 display and the G3M20211-1592-16 controller (voltage measured between Red wire and the others):
Red = VCC (41 v)
Yellow = Light ON (0V) / OFF (41V)
White = 41V
Blue = ON (0V) / OFF (41V)
Black = GND (41V)
Green = Pedal assist:
0 LED = 41 V
1 LED = 40 V
2 LED = 39 V
3 LED = 38 V
The controller is as stated an old G3M20211-1592-16 manufactured in dec 2011 and has a black enclosure, but I see the same controller can be purchased still, but then with a aluminum enclosure and according to this site, it should operate fine with 790 ebike display I bought:
Controller :: El-sykler
One other detail, the new 790 display did not have the same connector as the old one (round), but as the wire colours was the same I did just cut the new square connector off and used the old (soldering).
If anyone could shed any light on this problem it is much appreciated!
Best regards,
Henrik
