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ESR meter upgrades

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    #181
    Re: ESR meter upgrades

    Contrast is fine.

    Fixed by remark out: CFLAGS += -DSTRIP_GRID_BOARD

    Comment

      #182
      Re: ESR meter upgrades

      well that file is almost exactly like mine,
      you have contrast at 48, i found 50 is dead-center

      your H offset is 0
      CFLAGS += -DLCD_ST7565_H_OFFSET=0
      i have to use 2 or some problem happened i cant remember.

      and you have
      CFLAGS += -DLCD_SPI_OPEN_COL

      i have that hashed out.
      i cant remember why, i need to mess with that later.

      anyway - now you got that far - if your happy with the makefile i can try to make you a firmware with my *other* changes

      those are mostly saving space, but the frequency generator is different and the contrast menu is gone.(to save space)

      Comment

        #183
        Re: ESR meter upgrades

        yes, I am now going to see if those parts upgrade can be salvage from some stuff I have around here.

        Comment

          #184
          Re: ESR meter upgrades

          Originally posted by vinceroger69 View Post
          stj is this kit ok in your opinion
          http://www.ebay.co.uk/itm/3318737413...%3AMEBIDX%3AIT
          Ive emailed the seller of this kit asking if they can send me the build instructions so i can study them before the tester comes there answer they dont have one so has anyone got build instructions link for this new model many thanks.

          Comment

            #185
            Re: ESR meter upgrades

            Originally posted by vinceroger69 View Post
            Ive emailed the seller of this kit asking if they can send me the build instructions so i can study them before the tester comes there answer they dont have one so has anyone got build instructions link for this new model many thanks.
            Well the kit has just arrived the bad news is the pcb has none of the parts identified on it bacically its marked r1 r2 c1 c2 etc no instructions either in the package and the seller hasnt got any either i will try to upload a picture later but without knowing what value resitor/capacitor etc goes where im a bit stuck.

            Comment

              #186
              Re: ESR meter upgrades

              that's fucking insane!

              Comment

                #187
                Re: ESR meter upgrades

                Originally posted by stj View Post
                that's fucking insane!
                sure is heres the pictures of course some of it its easy to figure out but resitors value location im stuck on also theres three diffrent transistors types so stuck on locations for those too.
                Attached Files
                Last edited by vinceroger69; 06-17-2016, 07:05 AM.

                Comment

                  #188
                  Re: ESR meter upgrades

                  grab this
                  https://github.com/svn2github/transistortester/raw/master/Doku/trunk/pdftex/english/ttester.pdf

                  Comment

                    #189
                    Re: ESR meter upgrades

                    cheers stj someone else also posted this new manual for me on eevblog im just having a read of it now and also going too measure the resistors in the kit and see what matches up etc.

                    Im just measuring all the resistor values in the kit and also seeing what the four transistor part numbers are the rest i have already figured out.

                    its a 8 mhz crystal
                    transistors are 2x c945 p331 1x 4673 4c gf 2 1x ws tl431 928
                    resistors x6 10k x2 110 ohm x2 27k x3 470k x1 470 ohm 1x 33k x3 680 ohm x1 100k x1 5.6k x2 3.3k x1 2.2 there is also x1 brown looking type resistor but it only has 1 black band dead centre of it but there are 23 resistors in this kit plus the odd brown one but only 21 fitted resistors in the kit.

                    Now the main issue what resistor transistor goes where.
                    Attached Files
                    Last edited by vinceroger69; 06-17-2016, 11:30 AM.

                    Comment

                      #190
                      Re: ESR meter upgrades

                      '1 brown looking type resistor but it only has 1 black band dead centre of i' That sounds like '0' Ohm jumper.
                      I.E.:
                      Access to this page has been denied
                      http://www.digikey.com/product-detail/en/yageo/ZOR-25-R-52-0R/0.0QTR-ND/18795
                      px-captcha

                      Access to this page has been denied
                      http://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/ZR0207C/A105988TB-ND/2054706
                      px-captcha
                      Never stop learning
                      Basic LCD TV and Monitor troubleshooting guides.
                      http://www.badcaps.net/forum/showthr...956#post305956

                      Voltage Regulator (LDO) testing:
                      http://www.badcaps.net/forum/showthr...999#post300999

                      Inverter testing using old CFL:
                      http://www.badcaps.net/forum/showthr...er+testing+cfl

                      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                      http://s807.photobucket.com/user/budm/library/

                      TV Factory reset codes listing:
                      http://www.badcaps.net/forum/showthread.php?t=24809

                      Comment

                        #191
                        Re: ESR meter upgrades

                        brown resistor with a black band is a 0-ohm jumper

                        Comment

                          #192
                          Re: ESR meter upgrades

                          Originally posted by budm View Post
                          '1 brown looking type resistor but it only has 1 black band dead centre of i' That sounds like '0' Ohm jumper.
                          I.E.:
                          Access to this page has been denied
                          http://www.digikey.com/product-detail/en/yageo/ZOR-25-R-52-0R/0.0QTR-ND/18795
                          px-captcha

                          http://www.digikey.com/product-detai...8TB-ND/2054706
                          thanks budm your spot on thats exactly it, not sure why its in this kit as i cant see it on any pictures of this tester.

                          Comment

                            #193
                            Re: ESR meter upgrades

                            it's nicer than a jump wire when you have to cross some tracks or have a connection you may need to open for tests.

                            Comment

                              #194
                              Re: ESR meter upgrades

                              thanks guys although i cant see that 0 ohm used on this tester in all the pictures online Whats your thoughts guys regarding selling these kits but no build instructions? hows the average hobbiest supposed to know which part goes where? theres nothing in the add to say about instructions either way im struggling to find information about it im using this site and eeblog and even those guys dont seem to know as yet what goes where etc

                              http://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/2075/
                              Last edited by vinceroger69; 06-17-2016, 01:49 PM.

                              Comment

                                #195
                                Re: ESR meter upgrades

                                i would be tempted to ask for a refund because it cant be built without a reference sheet - that will make the bastards jump.

                                Comment

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