Mode not Support output

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  • July 29, 2016 at 12:48 PM #8204
    slampt
    Participant

      hey All,

      Finally received mine, assembled it tested everything before powering it up. Flick the switch it boots up, receives sync on AV1 (SCART) unfortunately the output on 3 LCDs that I have tested say “Mode not supported”
      I have tried SNES with LUMA SCART, NEO-GEO AES and Sega Dreamcast. I even tried a WII with Component but the same output 🙁

      Any advise would be great, is there a way to test the output on the HDMI?

      Cheers
      Slampt

      July 29, 2016 at 1:17 PM #8205
      slampt
      Participant

        Just received some advise so I will check this in the morning and report back! 🙂

        July 30, 2016 at 8:33 AM #8212
        marqs
        Participant

          Assuming the input is detected and indicated on character LCD, the issue is probably with IT6616 or its connection to HDMI socket. This can be verified by checking (HSYNC, VSYNC, PCLK and DE) traces between FPGA and IT6613E. If there is continuity between the chips and none of the connections is e.g. shorted to GND, then at least FPGA is providing the minimum that is required for generation of valid sync at output (If you have a scope and steady hand, you could also probe those signals).

          If they are ok, I’d next measure output voltages of IT6613E supply regulators U15 and U16 (both should be 1.8V). If they’re fine, then the problem could be e.g. bad connection between IT6613 and HDMI socket.

          July 30, 2016 at 9:01 AM #8213
          slampt
          Participant

            Thanks, I will see if I can source a scope to test this.
            I can confirm U15 and U16 are outputting 1.8V as required, I will go through and make sure it is supplying IT6613E as necessary.

            Thanks again for the advise.

            August 4, 2016 at 4:33 AM #8274
            slampt
            Participant

              All fixed folks, the HDMI connector had a bit of slag touching a couple of the pins on the underside. It was a PITA to clean up but it is done!

              Now I have to figure out why my scart cables for my ps1 and ps2 are not working. So far I have only been able to test the WII with RGB 🙁

              Thanks
              Slampt

              August 26, 2016 at 12:59 PM #8619
              slampt
              Participant

                So just to let everyone know, my DIY is now working. I am now waiting on the Audio add-on to give that a crack!

                Thanks again Marqs!

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