Panel due v2.0 stopt working bit works with usb



  • so i have an old 4.3" display with a panel due v2.0
    after missing the 5v jumper on the paneldue and connected it to a skr board with lcp-rrf it dies. probably a tiny puff off smoke came.
    now the weird part if i connect a usb cable to the paneldue the screen works and can controll the printer but it cant get its own power? what could be the burnt component is it worth trying to repair or should i just get a new paneldue?


  • Moderator

    Are you trying to connect via the ribbon cable or the 4 wire cable?

    Have you tried connecting it to the duet while it's being powered by the usb? You might be able to test if it's working at all or if something more is fried.

    Posting some close up photos of both sides of the PCB could help to see if something is burnt.



  • @Phaedrux said in Panel due v2.0 stopt working bit works with usb:

    Are you trying to connect via the ribbon cable or the 4 wire cable?

    Have you tried connecting it to the duet while it's being powered by the usb? You might be able to test if it's working at all or if something more is fried.

    Posting some close up photos of both sides of the PCB could help to see if something is burnt.

    i connect it with the 4 wires.
    and yes if i connect the 4 wires and use a usb cable for power it works no problem i can controll the printer from it.

    did not even knew that it was possible to rum the screen of a ribbon cable might try it out. should the jumper be 3.3 or 5v when connecting it with a ribbon cable? so i dont fry anything else 🤣


  • administrators

    The V2.0 schematic is at https://github.com/dc42/PanelDue/blob/master/PCB/V2.0/schematic-2.0.png. UAB power feeds the power rail via D1, whereas power from the 4-pin connector goes via D2 and L1. So if it works on USB power, the fault must be with D2 or L1. Does either of those components look damaged?

    The jumper should always be on 3.3v for common types of display. The version 3 PanelDue doesn't have the jumper, it's 3.3V unless you cut a trace and add a link.



  • @dc42 said in Panel due v2.0 stopt working bit works with usb:

    The V2.0 schematic is at https://github.com/dc42/PanelDue/blob/master/PCB/V2.0/schematic-2.0.png. UAB power feeds the power rail via D1, whereas power from the 4-pin connector goes via D2 and L1. So if it works on USB power, the fault must be with D2 or L1. Does either of those components look damaged?

    The jumper should always be on 3.3v for common types of display. The version 3 PanelDue doesn't have the jumper, it's 3.3V unless you cut a trace and add a link.

    no not at all neither look damaged but might be easy to just order them and swap them and se.

    or is there any values that i can messure? i thr warrenty is already gone and i have some soilder skills. bust reslly bad at fault hunting.



  • and i dont know if it helps but i tested it on a duet wifi 1.03 board


  • administrators

    @Nappen said in Panel due v2.0 stopt working bit works with usb:

    o not at all neither look damaged but might be easy to just order them and swap them and se.
    or is there any values that i can messure? i thr warrenty is already gone and i have some soilder skills. bust reslly bad at fault hunting.

    Check L1 with a multimeter on the lowest resistance setting. It should have a very low resistance.

    Check D2 using a multimeter on the diode setting.

    BTW we are expecting to have new PanelDue firmware soon, to remove many of the limitations of the existing firmware. The new firmware will only work with RRF3 and it will probably be too large to run on version 1 and 2 PanelDue boards.



  • @dc42 said in Panel due v2.0 stopt working bit works with usb:

    @Nappen said in Panel due v2.0 stopt working bit works with usb:

    o not at all neither look damaged but might be easy to just order them and swap them and se.
    or is there any values that i can messure? i thr warrenty is already gone and i have some soilder skills. bust reslly bad at fault hunting.

    Check L1 with a multimeter on the lowest resistance setting. It should have a very low resistance.

    Check D2 using a multimeter on the diode setting.

    BTW we are expecting to have new PanelDue firmware soon, to remove many of the limitations of the existing firmware. The new firmware will only work with RRF3 and it will probably be too large to run on version 1 and 2 PanelDue boards.

    then i solve this board with scarapping it and getting a new 🤣 thanks for the heads up 😁


Log in to reply