[REQUEST] A updated part list for OSSC 1.6?

NewHome › Forums › OSSC, OSSC Pro and DExx-vd isl › OSSC – DIY & Repair Support › [REQUEST] A updated part list for OSSC 1.6?

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  • June 14, 2018 at 12:08 PM #22155
    d0pefish
    Participant

      Received, thankyou 🙂

      I will dispatch this today for you.

      Cheers!

      October 13, 2018 at 12:19 AM #23345
      d3ss0u
      Participant

        Thanks to d0pefish, I got the IR receiver I was missing and after a few month I decided it was time to finish building my OSSC.
        Sadly it’s not working, leds are not even turning on and I have no clue why …
        I feel so dumb thinking I was experienced enough in diy project to hand solder an OSSC.
        I may try to find where the problem is using my multimeter, but right now I dont’t really feel like it right now.

        October 13, 2018 at 9:52 PM #23350
        Morpheus_79
        Participant

          It’s not dumb looking for challenges to improve your knowledge and skills. You may fail occasionally… but since nobody is perfect: that’s part of the learning process.

          If you’re trying to find where the problem is, you may want to start by checking if none of the power supply lines are shorted to ground – as described in the ‘verification’ part of the ‘assembly tips’:

          https://www.niksula.hut.fi/~mhiienka/ossc/diy-v1.5/assembly_tips.txt

          A couple of months ago i had an OSSC fully assembled and ready to go… but i measured that there was a short to ground somewhere. I checked every pin of every IC multiple times under the microscope… removed every regulator… but i couldn’t find the problem for the life of me. So i transplanted every part to another pcb at the end – and that did the trick. Still had the short to ground on the first pcb after that. The pcb was simply defective. That’s something i hadn’t thought about or expected…

          Next: if there’s no short on your OSSC you should check the F1 fuse for continuity. If the fuse is fine, check if the output voltages of U5 and U6 are okay (both = 3.3V). Do the same for U12 (= 1.2V), U13 (= 2.5V) and U14 (= 1.2V) and for U7 and U9 too (both = 1.9V)…

          October 13, 2018 at 10:54 PM #23351
          d3ss0u
          Participant

            Yeah I’m going to try checking the voltages at regulators regarding altera and other big ICs, it s going to be hard since I dont have a microscope or tools more precise than a multimeter.

            October 14, 2018 at 12:47 AM #23352
            Morpheus_79
            Participant

              I’ve built an OSSC 1.5 for myself and a few OSSC 1.6 for others in the past using just a decent soldering station, a multimeter and a cheap head mounted magnifier. You don’t need a lot more than those tools. My first one (the 1.5) had some problems as well because of some shorted pins on the U1 and a faulty capacitor. It took me some time, but i figured it out… and now it works flawlessly.

              I just recently bought a microscope since i have to solder more and more fine pitch stuff for hobby repairs. It comes in handy for checking solder joints but it’s not needed by any means to build an OSSC.

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