January 17, 2012   Posted by: Dr. Ace Jeangle

How to connect our PCB v2

First of all, please follow below instructions to make required modifications to your mainboard (click on your mainboard name near “+” to get additional details).

You should install headers J4 and J5 on BOTTOM side of BeagleBoard. You can add these headers as an option to any product in our web-shop.
Modification is not required.
You should install headers J1 and J4 on BOTTOM side of PandaBoard. Also, you should remove 28 resistors on top side (R40-R43, R45, R46, R48-R53, R64-R73, and R80-R85), and install 33 Ohm resistors R176-R203 on bottom side of mainboard. See pp.32-36 in PandaBoard System Reference Manual for details. You can add these headers and resistors as an option to any product in our web-shop.
You should install headers J1 and J4 on BOTTOM side of PandaBoard-ES. You can add these headers as an option to any product in our web-shop.


Our LVDS PCB is connected through two Parallel LCD Expansion Headers on the bottom side of mainboard. They are:

  • J4 and J5 for BeagleBoard
  • P11 and P13 for BeagleBoard-xM
  • J1 and J4 for PandaBoard
  • J1 and J4 for PandaBoard-ES

Connect LCD data and power connectors to LVDS PCB v2 like on drawing 1. Pin 1 is marked by white dot on data connector, and has rectangular shape on PCB. Power connector has key and can’t be inserted wrongly. Place PCB v2 to your mainboard. Please, pay attention that LCD and power connector on our PCB should be pointed toward center of motherboard (click drawing 2). You should get connection like on drawing 3 (BeagleBoard-xM is shown).

29 comments posted in: How-To
  1. Dave
    Feb 10, 2012

    Awesome example – I connected to my BeagleBoard xM and started it up with the LCD in one attempt – perfect!

  2. Tommi
    Feb 24, 2012


    The BB xM example picture looks like the adapter board is covering the edge of the main expansion connector, would this prevent connecting a pin header to the connector? The pins at the lcd connector end of the expansion connector are the ground pins and vital for expansion card operation

    • Dr. Ace Jeangle
      Feb 26, 2012

      Hello Tommi,

      This photo is made slightly under angle. Actually, you have direct access to these pins on expansion headers.
      You can download gerbers and check it yourself.

  3. pandaes
    Mar 06, 2012


    I just want to double check if the PCB board connection for Pandaboard ES is right.
    Are the following connection combinations correct?
    CON1 (PCB) -> J4 (LCD Connector A)
    CON2 (PCB) -> J1 (LCD Connector B)

    Also, in order to place the PCB board, a rubber footing needs to be removed. Is it the way supposed to be?


    • Dr. Ace Jeangle
      Mar 06, 2012

      Hello panda,

      Yes, you are correct.
      For rubber footing – you can just move it to another place close to our PCB in order to keep board steady on 4 foots.

      • Harald
        May 30, 2012

        to avoid confusion due to typos: at least on my Pandaboard ES J4 is labeled Connector *B* and J1 is labeled *A*, so (at least for me) this should read

        CON1 (PCB) -> J4 (LCD Connector B)
        CON2 (PCB) -> J1 (LCD Connector A)


  4. 3den
    May 31, 2012

    Hi guys,

    Need to double confirm,

    Do we need to take out the Resistor for Panda ES version?

    Then about the board is it connected to the bottom of the panda ES or the top?
    from pandaes, reply it is bottom and it will be blocked my the rubber padding of PandaES board.

    My PandaBoard ES is revision B.

    • Dr. Ace Jeangle
      May 31, 2012

      Hello Dennis,

      You don’t have to remove/solder resistors for Panda ES – just install headers.
      Board is connected on bottom side. Rubber padding can be shifted to different location on board (it has glue surface).

      • 3den
        Jun 06, 2012

        Dr. Ace,

        Thanks! 😀

  5. 3den
    Jun 06, 2012

    there is another cable which is usb type, what is that for? is that needed?

    • Harald
      Jun 06, 2012

      that’s for the touch screen…

  6. Daniel
    Jun 15, 2012

    Everything is working with my Pandaboard ES but the screen is very dark, as if the backlight was too dim. The ambient light sensor is working (if I block it the screen gets even dimmer) but it´s not confortable to read. How can I increase the backlight power? Thanks

  7. Taddy
    Jun 21, 2012

    Hi Dr. Ace,

    I am using Ginger Bread pre-build for Beagleboard XM

    It could display on the screen, but touch screen does not work, back light seems does not work too (nothing changed under lighting change at ambient sensor).

    Any advices?


    • Dr. Ace Jeangle
      Jun 22, 2012

      Hello Taddy,

      You should recompile kernel to include Multi-touch HID driver to get touchscreen working.
      As to backlight – please check that your sensor wires are not damaged. Alternatively, you can follow this tip for manual backlight control: https://www.chalk-elec.com/?p=1391

  8. Joaquin
    Jun 25, 2012


    Any plans for the next Assembled PCB ver(3) to fit exactly below the pandaboard?
    (shifting the power and LDC connector, the Microchip microcontroller, SPX1567 to the left)
    In that case we could use cases like: https://specialcomp.com/pandaboard/order.htm


    • Dr. Ace Jeangle
      Jun 26, 2012

      We designed board as small as possible to fit right under Panda. the only parts getting out of Panda are LCD/backlight connectors.

      • Joaquin
        Jun 27, 2012

        Actually there are around 3mm in the SPX1567 / power connector side that are off . Just below the pandaboIn your next design you could shift the entire PCB tracks to the conn 1 & 2 side.

        Best regards

        PS: It is not critical, I used a dremel to remove part of the acrylic box, but will be nicer.

        • Dr. Ace Jeangle
          Jul 03, 2012

          Ok, I got what you mean. Unfortunately we can’t shift entire PCB design to the side, because it will overlap I/O extension connectors on Panda. The only way would be to change CON4 to smaller pitch one.

  9. abdullah
    Jul 20, 2012

    I bought a LVDS LCD interface board Ver 2 for Beagleboard Xm and tried to connect it Innolux 10 inch LCD, but I couldn’t get any success.When I look at the connections I saw that RX3+ at header-10×2 pin 20 was connected to GND.Is that normal?Also when I connect it I see only backlights and black screen. Do I need to set bootargs? Do I need to change PIC firmware that includes my LCD’s data?

  10. Dr. Ace Jeangle
    Nov 14, 2012

    Yes, it is fully compatible with PQ 3Qi-01.

  11. Dr. Ace Jeangle
    Nov 15, 2012

    PQ101WX01 should be OK as well.
    We still negotiate with Element14.

  12. Marco
    Nov 16, 2012

    Ciao Dr. Ace, I’m very tempted to buy a couple of boards for IGEPV2, could you also provide LVDS cables assembled for PQ 3Qi-01 ?

  13. Dr. Ace Jeangle
    Nov 21, 2012

    It is impossible to solder it wrong way, because our board has mounting hole that should match the hole on IGEPv2.

  14. Ian Campbell
    Nov 25, 2012

    I have 30 Pin LVDS 6-bit (18-bit total RGB) LCD Panel (LG LB070WV8). Will this panel work with the PCB v2? Do you have a different cable that will work with this 30 pin LCD module (rather than the 40 pin module you use in your kit)?



    • Dr. Ace Jeangle
      Nov 27, 2012

      Yes, it will work. You have to ask your LCD supplier for LVDS cable. We make custom cables for our LCDs, and unfortunately can’t supply cables for third-party panels.

  15. Dr. Ace Jeangle
    Dec 05, 2012

    Usually, our sales team answers in 1-2 days.

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