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    Re: ESR meter upgrades

    Originally posted by stj View Post
    no, i'v seen a few of these panels lifted - they are more like this:
    http://www.ebay.com/itm/182035169094

    the question is how that ribbon maps to the pinstrip on the backing pcb.
    your spot on with your link ive just moved my ribbon cable carefully and it looks identical pin wise on the ribbon cable tracks

    Comment


      Re: ESR meter upgrades

      try this one.
      Attached Files

      Comment


        Re: ESR meter upgrades

        Tried "testing-swap12.zip" but just like the others there was only backlight.
        "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment


          Re: ESR meter upgrades

          shit.
          have to think about this until vince pins out that display to the pinstrip on the backing board.
          and the socketstrip on the mainboard to the cpu for that matter - his underside photo was not good enough to get that part.

          what i have is this:
          1 - gnd
          2 - atmel pin 2?
          3 - atmel pin ?
          4 - atmel pin ?
          5 - atmel pin 5?
          6 - +5v
          7 - gnd
          8 - +v (led)
          9 - gnd (led)

          pin1 on the socketstrip is at the outer edge - can you trace/meter the atmel pins to the display connector?
          i suspect the atmel is using pins 2,3,4 & 5

          Comment


            Re: ESR meter upgrades

            I already did, back in this post I tracked the Atmel CPU to the pinstrip.
            And it was exactly as the schematic I linked on the previous page.
            "The one who says it cannot be done should never interrupt the one who is doing it."

            Comment


              Re: ESR meter upgrades

              I will meter the pinout now bear with me
              Attached Files
              Last edited by vinceroger69; 07-15-2016, 04:36 AM.

              Comment


                Re: ESR meter upgrades

                right the ribbon cable has 14 pads reading left to right
                pin 1 nc
                pin 2
                pin 3 nc
                pin 4 nc
                pin 5
                pin 6
                pin 7 on ribbon cable to pin 7 on connector
                pin 8
                pin 9 on ribbon cable to pin 5 on connector
                pin 10 on ribbon cable to pin 4 on connector
                pin 11 nc
                pin 12 on ribbon cable to pin 3 on connector
                pin 13 on ribbon cable to pin 2 on connector
                pin 14 on ribbon cable to pin 1 on connector

                pin 8 and 9 on connector go to backlight
                as per my above picture im classing pin one on the left hand side of picture.
                anything else you need whilst my lcds apart just ask.
                Attached Files
                Last edited by vinceroger69; 07-15-2016, 05:22 AM.

                Comment


                  Re: ESR meter upgrades

                  Originally posted by Per Hansson View Post
                  I already did, back in this post I tracked the Atmel CPU to the pinstrip.
                  And it was exactly as the schematic I linked on the previous page.
                  that incomplete schem does not even have the correct cpu pin labels!
                  i started drawing a new one.

                  Comment


                    Re: ESR meter upgrades

                    o.k., i need the track marked in green clarified.
                    where is it going on the pinstrip?
                    there is too much flux to see it clearly.

                    and i need the cpu pins traced - dont point me at a bogus schematic from china.
                    Attached Files

                    Comment


                      Re: ESR meter upgrades

                      Originally posted by stj View Post
                      o.k., i need the track marked in green clarified.
                      where is it going on the pinstrip?
                      there is too much flux to see it clearly.

                      and i need the cpu pins traced - dont point me at a bogus schematic from china.
                      just cleaned board your highlighted track goes to pin 2 on connector pin 13 on ribbon cable

                      Comment


                        Re: ESR meter upgrades

                        o.k., i now have a schem of the display board
                        and i have this pic!!!!!



                        so i need pins 2-5 traced to the cpu to verify which pins they go to.
                        Attached Files
                        Last edited by stj; 07-15-2016, 06:21 AM.

                        Comment


                          Re: ESR meter upgrades

                          so our display board connector looks like this

                          1 - lcd /CE (gnd)
                          2 - lcd RST
                          3 - lcd A0
                          4 - lcd SCL
                          5 - lcd SDA
                          6 - +5v
                          7 - gnd
                          8 - led anode
                          9 - led cathode

                          Comment


                            Re: ESR meter upgrades

                            stj ive used diode/bleep tests these are my results pin 1 on pcb/lcd connector im classing left had side of board
                            pin 9 goes to pins 22 and 8 gnds
                            pin 8 goes nc?
                            pin 7 goes to pins 22 and 8 gnds
                            pin 6 goes to pin 7 vcc and pin 20 avcc
                            pin 5 goes to pin 5 pd3
                            pin 4 goes to pin 4 pd2
                            pin 3 goes to pin 3 pd1
                            pin 2 goes to pin 2 pdo
                            pin 1 goes to pins 8 and 22 gnd

                            stj i hope that makes sence im learing as i going/testing etc
                            Last edited by vinceroger69; 07-15-2016, 06:53 AM.

                            Comment


                              Re: ESR meter upgrades

                              that's great.
                              i'll go throw something together to test.

                              Comment


                                Re: ESR meter upgrades

                                Originally posted by stj View Post
                                that's great.
                                i'll go throw something together to test.
                                Thanks stj for taking time to try and sort this ive got to admit i have no idea about the code/hex stuff you have too do to write a working program etc.

                                Comment


                                  Re: ESR meter upgrades

                                  try these
                                  Attached Files

                                  Comment


                                    Re: ESR meter upgrades

                                    Originally posted by stj View Post
                                    try these
                                    Thanks stj i will try it as soon as im back home as just need to pop out, maybe per hansson can check this too as im still learning how to use my programmer so i would not want too say your file dosnt work when it does as im messing up my end programming it although i will try when im back home.

                                    Comment


                                      Re: ESR meter upgrades

                                      maybe now you know why it's good to have a programming header on the board!

                                      Comment


                                        Re: ESR meter upgrades

                                        Originally posted by stj View Post
                                        maybe now you know why it's good to have a programming header on the board!
                                        soldering one on the pcb etc isnt the isuue its the learning of the programming side of things im reading up on and trying too learn, things it seems to take longer as you get older.

                                        Comment


                                          Re: ESR meter upgrades

                                          Originally posted by stj View Post
                                          that incomplete schem does not even have the correct cpu pin labels!
                                          i started drawing a new one.
                                          You are correct they mislabeled some of the pins, but the layout seems correct.
                                          As now verified by vinceroger69 as well

                                          I now tried all firmwares in "testing-chips.zip"
                                          The only one which gave scrolling text like with the previous files quoted below was the 7565 display firmware.
                                          All others just had blank display with backlight lit.

                                          Originally posted by Per Hansson View Post
                                          testing-ramshift.zip
                                          testing-oc.zip
                                          The above two behaved like it also did with "GM328A ESR tester (SVN663).zip" which was scrolling characters on the screen.
                                          Last edited by Per Hansson; 07-15-2016, 10:58 AM.
                                          "The one who says it cannot be done should never interrupt the one who is doing it."

                                          Comment

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