Classic design with patented structure. J-LCD is the first in the industry to use a separate button structure on display. Compact, high technology, and reliable. The clock function works through a built-in rechargeable battery.
70.8mm * 51.9mm * 21.1mm
Battery, Headlight, Mile/KM, ODO, PAS Level, Speed, Trip, Walk Assistance
CAN BUS, LIN, UART
22.2mm, 25.4mm, 31.8mm, Integrated Stem
24V, 36V, 48V
CE, EN15194:2017, IPX6, RoHS
To ensure the better performance of your e-bike, please read through the J-LCD product introduction carefully before using it. We will use the most concise words to inform you of all the details (including the hardware installation, setting, and normal operation use of the display) when using our display. Meanwhile, the introduction will also help you to solve the possible confusion and malfunctions.
J-LCD products are made of white and black PC. Under the temperature of -20 to 60℃, the shell material can ensure normal usage and good mechanical performance.
Real product and dimension figure (unit: mm)
The J-LCD match has a dedicated 30 button, which can be mounted on the left or right side of the handlebar. N3 buttons are wired to the bottom of the meter.
The shape is as follows:
J-LCD provides a wide range of functions and indicators to fit the users’ needs. The indicated contents are as follows:
J-LCD ebike Display has three buttons. They are [MODE] [UP] [DOWN]. In the following introduction, [MODE] is named as ‘MODE’. [UP] is named as ‘UP’ and [DOWN] is named as ‘DOWN’.
Be care of the safety use. Don’t attempt to release the connector when the battery is on power.
Fix the display onto the handlebar and adjust it to an appropriate visual angle. Tighten all the connectors.
Hold the Mode button for 2 seconds then the display will power on, and the display will power on the controller. With the display on, hold MODE to turn off the power supply of the e-bike. With the display off, the display and controller shut down. The leakage current is less than 1 uA.
When parking an e-bike for more than 10 minutes, the display shut down automatically.
After starting up the display, it will display the following interface:
Press [MODE] to switch the cycling mileage and cumulative total mileage. This feature makes it easy for users to view TRIP and ODO.
After the electric vehicle starts up, the display defaults to display the current speed.
Press the [MODE] and [DOWN] button for 2 seconds to display the average speed of this ride (AVG), press the [MODE] and [DOWN] button for 2 seconds to display the maximum speed of this ride (MAX), and press [MODE] and [DOWN] again for 2 seconds to return to the current speed display, and so on.
Hold [DOWN] for 2 seconds to enter the mode of power assistant walk. The e-bike will go on at a uniform speed of 6 Km/h.[Riding icon] shows on the screen flashing.
Note:6Km/h ‘Push Cruise Control’ function can only be used as pushing the e-bike by hands. Please don’t use this function when riding.
Hold [UP] 2 seconds to turn on the backlight of the display, the headlight will be powered on at the same time. Hold [UP] for 2 seconds again, the backlight turned off.
Hold [UP] or [DOWN] to change the output power of the motor. The power ranges from level 1 to level 5. The default value is level 1.
The 5 battery bars represent the capacity of the battery. When the battery is in low voltage, the battery frame will flash to notice that the battery needs to be recharged immediately.
The time is shown as below:
If there is something wrong with the electronic control system, the error code will appear automatically. Here is the detailed information on the error code in Table 1 attached.
Note: Please keep the display repaired when an error code appears.
Press the [MODE] button to start the display, then hold both [UP] and [DOWN] for 2 seconds to enter the setting menu.
Select the hour value by [UP] / [DOWN], press the MODE key to confirm and enter the minute setting; Select the minute value by [UP] / [DOWN], press the MODE key to confirm and enter the next setting.
BL means backlight. Level 1 is the low brightness. Level 2 is the middle brightness. Level 3 is high brightness. The default level is 1. Press [UP] or [DOWN] to modify the backlight brightness. Hold [MODE] to confirm the modification and exit the general
The parameter metric/inch system can be set. The meter works in the metric system by default. The metric parameter can be changed by [UP] / [DOWN].
TC means trip distance clearance. Setting parameters can be N/Y. The default N means that the mileage of a single ride is not zero. Y/N can be selected through [UP] / [DOWN]. Y means that the mileage of a single ride needs to be cleared, while N means that the mileage of a single ride does not need to be cleared.
In the setting state, short press the [MODE] to confirm the input and enter the next setting; Long press the [MODE] to save and exit the setting state.
The character “PSD.2” on the bottom of the screen means the page of password. Hold [UP] and [DOWN] both up to 2 seconds to enter the normal setting, while holding both [UP] and [MODE] 2 seconds again will enter the power-on password enable/disable page.
Press [UP]/[DOWN] to change the number. Press [MODE] to select digits one by one. After 4-digits of the correct password entered, press [MODE] to confirm then select password enable or disable.
Press [UP]/[DOWN] to select Y or N, and press [MODE] to confirm. Power-on Password default disabled.
[UP] and [DOWN] is to change the number, and [MODE] is to select digit one by one, finally to hold [MODE] to confirm the modification.
The screen prompts “PSD.1”, indicating that the permission password needs to be entered. Press the [MODE] to shift, and add/subtract the input value by [UP] / [DOWN]. After the 4-digit password is input, press [MODE] to confirm.
If the password is correct, enter the power-on password enabled setting interface; otherwise, stay in the password input state. Long press [MODE] to exit. The permission password is 0512.
LD means Wheel Diameter. Press [UP] and [DOWN] to select the correct value to match the wheel diameter. Selectable values include: 16, 18, 20, 22, 24, 26, 700C, 28, 29. The default diameter is 26 inches.
When the running speed is faster than MAX SPEED, the controller will cut off the motor power. MAX SPEED default setting is 25Km/h. LS means Limit Speed 12Km/h to 40Km/h is selectable. Press UP/DOWN to select the favorite value, then hold MODE for over 2 seconds to confirm and quit the setting mode.
Personalized Parameter Settings can match various requirements in use. Settings items are Battery Power Bar Setting, Pedal assistant level Setting, Over-current Cut, Pedal Assistant Sensor Setting, Speed Sensor Setting, and Delay Time Setting. For the details, please see the Attached List 3.
Hold [UP] and [DOWN] both over 2 seconds to enter the normal setting, while hold [UP] and [DOWN] both again is to set up the System Parameter, password 2962 must be entered.
[MODE] is to confirm and enter the System Parameter Setting page, you can select the option which you want.
Press [UP]/[DOWN] to select, and press [MODE] to enter the corresponding setting page.
Each bar represents a voltage value. 5 voltage values must be entered one by one.
Press [MODE] to confirm and [UP]/[DOWN] to select the value.
VOL = voltage
SCA stands for booster parameter setting. 8 modes are provided in the selection of power gear: 0-3, 1-3, 0-5, 1-5, 0-7, 1-7, 0-9, 1-9. Through the switch of [UP] / [DOWN], press [MODE] to confirm and enter the corresponding power ratio numerical setting interface.
Modifying the value of the PAS ratio will meet the different requirements.
Take the 1 level for example, “30-50 percent” is the range value, the bottom value can be modified, and the default is 40 percent. [MODE] is used to confirm and turn to the next PAS ratio setting. After all PAS ratios are inputted, please hold [MODE] for over 2 seconds to confirm the modification and turn to controller Over-current Cut setting [MODE] back to pedal assistant level select page). For the details, please see Attached List 4.
CUR means current. CUR value can be changed from 7.0A to 18.0A. Press [UP]/[DOWN] is to change the value of the current, and hold [MODE] to confirm the setting and turn to PAS sensor setting.15A is the default value of controller over-current cut.
Note: According to the different controllers, the value might not be able to be 18A.
The Direction of Pedal Assistant Sensor Setting
“run-F” means forward direction, while “run-b” means back direction. Press [UP]/[DOWN] to select F or b, and press [MODE] to confirm and turn to the PAS sensitivity setting. The default direction is forward.
SCN means the sensitivity of PAS, and 2 to 9 can be selected.2 is the strongest, and 9 is the weakest. [UP]/[DOWN] is to select sensitivity value, and [MODE] is to confirm selection and turn to magnet disk setting. SCN default value is 2.
N means the proportion parameter of PAS. Press [UP]/[DOWN] to select the parameter, the more power, the more PAS feeling.
SPS means Speed Sensor. Press [UP]/[DOWN] to select the quantity of magnet head (the range is from 1 to 9), and press [MODE] to confirm and turn to the Throttle Definition page. SPS default value is 1
Hnd means throttle load, HL:N means function disable, and HL:Y means function enable.
When HL=Y, the throttle can control the function. Press [UP]/[DOWN] to select Y, and press [MODE] to confirm the selection, otherwise select N to turn to Throttle Vector Enable Setting. HL default value is N.
HF means throttle. HF:N means throttle vector disable. When HF=Y, turn the throttle to change the running speed. Press [UP]/[DOWN] to select Y or N, and hold [MODE] to confirm the selection and quitting. Press [MODE] to confirm and turn to the throttle definition page.
Delay time setting of battery power
DY means delay time of battery power. Choose delay time 3/6/12s by pressing [UP]/[DOWN], then shortly press [MODE], and enter the max speed limited. The default time is 3s.
SP means max speed limited. Set the max speed when pressing [UP]/[DOWN] from 25-40 Km/h. Long time to press [MODE], then exit setting. The default is 40Km/h.
Note: The standard speed limit setting is based on this setting, not more than this setting value. This setting is the priority version.
PUS means pushing. Press UP/DOWN to choose Y/N. Short press MODE, Y means to enable, and N means disable. Short press MODE to confirm and enter into the PAS speed setting. The default value is Y.
PU means pushing. Through setting PAS to adjust push speed to meet rider’s requirements. The scope is “20%-35%” by pressing UP/DOWN, short press MODE to enter into a slow startup. The default value is 25%.
SSP means slowly startup. The scope is 1-4, 4 means the slowest. Press [UP]/[DOWN ]to choose. Long press [MODE] to confirm and exit the setting. The default value is 1.
In the setting state, short press [MODE] is to confirm the input. Long press [MODE] is for saving the setting, then quitting the setting state. Long press [DOWN], is to cancel the operating but not saving setting data.
Note: If there is no operating in one minute, the display will exit the setting state.
DEF means recover default. Both press [UP] + [MODE] to enter recover default setting. Pressing [UP], [DOWN] to convert Y or N. Y means do need to recover the default setting; Y means entering into the password setting. Otherwise, the display will exit. The default state is N.
Input password: 0368. Short press [MODE], [UP]/[DOWN] can increase or reduce the number. After inputting 4
passwords, short press [MODE] to confirm. The interface is as below. When the display showed DEF:00, it means recovering the default state, then exiting.
Note: In the recovery default, battery power, ODO, and trip can not be recovered, but starting up password can be recovered.
Make sure all connectors are tightened and the cables are without damage.
Q: Why the display is not able to startup?
A: Check the connector between display and controller.
Q: How to deal with the error code?
A: Fix it to the maintenance place immediately.
Any quality problems in normal cases and during the guarantee period, our company will be responsible for the warranty.
The warranty time is 24 months when the display is out of the factory.
The following items do not belong to our warranty scope.
We will email you within 1 day with the suffix “@topeparts.com”.