Problem sega master system 1 PAL

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  • August 24, 2017 at 12:36 PM #14731
    karlimero
    Participant

      Hello,
      I have a problem with my Sega Master System 1 PAL. The OSSC v1.6 does not display any video signals.
      The problem is only with this console.

      Bonjour,
      j’ai un problème avec ma Sega Master System 1 PAL. l’OSSC v1.6 n’affiche aucun signal vidéo.
      Le problème est uniquement avec cette console.

      August 24, 2017 at 11:55 PM #14739
      BuckoA51
      Keymaster

        What is the read out on the LCD on the OSSC and what does it say when you press the Info button?

        August 25, 2017 at 8:45 AM #14746
        karlimero
        Participant

          It displays Vmod: 1536x240L LO: 1560 VSM: 0

          thanks

          August 25, 2017 at 9:10 AM #14748
          Harrumph
          Participant

            So you are using Lx5 mode. Does it work with Lx2, x3, x4?
            Is the sync stable?

            August 25, 2017 at 10:01 AM #14750
            karlimero
            Participant

              No it does not work either.

              August 25, 2017 at 10:26 AM #14751
              paulb_nl
              Participant

                If you set maximum brightness to mask and increase horizontal or vertical mask then does it display the mask?

                http://junkerhq.net/xrgb/index.php?title=OSSC#Horizontal_mask

                August 25, 2017 at 10:37 AM #14752
                karlimero
                Participant

                  No, there is nothing on the screen, the TV shows “no signal”

                  August 25, 2017 at 12:35 PM #14755
                  Harrumph
                  Participant

                    You need to give us more info if we are to help you…
                    Do you have stable sync – green LED light, and the linecount, horizontal/vertical refresh is displayed without problems? What cable do you use, how is it wired? Can you confirm it works when connected directly to a TV?

                    August 25, 2017 at 1:23 PM #14756
                    karlimero
                    Participant

                      No sync (green LED off) The cable used and the official RGB cable (PAL console sold with an RGB cable) The console works perfectly on the TV without the OSSC. The console is connected directly to the OSSC during testing.

                      August 25, 2017 at 2:21 PM #14757
                      BuckoA51
                      Keymaster

                        What is the read out on the LCD without the info button pressed?

                        AV1: RGBS ???p

                        xx.xxKhz xx.xxHz

                        Please let me know these numbers and are they stable?

                        August 25, 2017 at 4:15 PM #14762
                        karlimero
                        Participant

                          vmod: 1600×1200 LO: 1250 VSM: 0

                          edit:
                          I just checked, if I press info, it gives me the characteristics of the previous console that was plugged into the OSSC.

                          August 27, 2017 at 11:50 AM #14785
                          BuckoA51
                          Keymaster

                            No not the info from the information page the standard readout on the OSSC LCD:-

                            AV1: RGBS ???p

                            ??.??Khz ??.??Hz

                            Please let me know these numbers and are they stable?

                            May 17, 2019 at 4:21 PM #26240
                            Nexus45
                            Participant

                              Hello all, I’m a new OSSC user! So far I’ve been quite pleased with the results with my various systems. Unfortunately, I’m unable to get any signal from both of my Master System consoles (Model 1 and 2, PAL).

                              Readout on the OSSC LCD: AV1: RGBS – NO SYNC
                              Info: Prof.9 1600×240

                              Both systems work great on a CRT TV.

                              Any idea?

                              Thank you for your help.

                              May 17, 2019 at 5:05 PM #26241
                              Nodoka75
                              Participant

                                If it’s a french Master System, with the french official 3085 cable (it came with all french SMS, 1, 2, and Megadrive One), unsolder one pin of R19 inside the 3085.

                                May 17, 2019 at 5:17 PM #26242
                                Nexus45
                                Participant

                                  Thank you for your quick reply!

                                  It is indeed a french Master System. What is the goal of removing R19? Is this for the sole purpose of having it work with the OSSC? Will it prevent it to work as before in any way?

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