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Bally harlem globetrotters - power issue

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  • Bally harlem globetrotters - power issue

    I working on my harlem globetrotters pin and noticed I dont have GI lights and all the voltages are way off at all the test points on the recitifier board. Checked all the fuses - they are all good (including F6). But F6 is showing a very low voltage too. I have 240v at the power switch under the machine and also at E2 on the recitifier board. So Im a little unsure as to why Im not getting the correct voltage at F6 - any ideas?

  • #2
    F6 is an AC fuse.. you have the meter on DC

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    • #3
      I tested it on AC.

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      • #4
        Originally posted by judgeboz View Post
        I tested it on AC.
        F6 is the AC input fuse.. if its not right the machine is stone dead. you have the other test point voltages so you measured it wrong

        if your only issue is no gi its probably the track that runs on the parts side of the board to J1 ( 1 &2) .. rough work desoldering old pins rips the via out

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        • #5
          Is the harlem a new addition? or a game you've had for awhile??

          The reason I ask is the weak point in all the old Bally's is the rectifier board and all and any hacks that have been done over the last 30 years.

          If its a recent addition, do yourself a favour and get a new board from [MENTION=13619]Tangles[/MENTION] or GPE in the states.
          http://www.aussiearcade.com.au/forum.../138-RAIL-WAYS

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          • #6
            Originally posted by wiredoug View Post
            F6 is the AC input fuse.. if its not right the machine is stone dead.
            agreed - I recon it is stone dead at this point. TP1,TP2,TP3, TP5 are DC and TP4 AC - all bad readings.

            - - - Updated - - -

            Originally posted by Railways View Post
            Is the harlem a new addition?.
            yes - was think about getting a new rectifier board but wanted to sure

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            • #7
              its THE INPUT. unplug it from the wall.. if the readings change f6 is fine


              you can unplug the game and measure the resistance from J2-6 to J2-7 if you like .. should be about 4ohms from memory.

              unless its been munged the board is quite repairable

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              • #8
                Originally posted by judgeboz View Post
                agreed - I recon it is stone dead at this point. TP1,TP2,TP3, TP5 are DC and TP4 AC - all bad readings.

                - - - Updated - - -

                yes - was think about getting a new rectifier board but wanted to sure
                Do it and the whole game will come to life. brighter GI and all.
                http://www.aussiearcade.com.au/forum.../138-RAIL-WAYS

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                • #9
                  Originally posted by judgeboz View Post
                  I working on my harlem globetrotters pin and noticed I dont have GI lights and all the voltages are way off at all the test points on the recitifier board. Checked all the fuses - they are all good (including F6). But F6 is showing a very low voltage too. I have 240v at the power switch under the machine and also at E2 on the recitifier board. So Im a little unsure as to why Im not getting the correct voltage at F6 - any ideas?
                  So if you pull fuse F6 what voltage do you get between F6(E1) and E2?
                  Should be 240V
                  Has the machine previously been run in Aus?

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                  • #10
                    Originally posted by Boots View Post
                    So if you pull fuse F6 what voltage do you get between F6(E1) and E2?
                    Should be 240V

                    E1 - 166 vAC
                    E2 - 244 vAC

                    Has the machine previously been run in Aus?
                    I believe so from what I was told from the previous owner

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                    • #11
                      Originally posted by judgeboz View Post
                      E1 - 166 vAC
                      E2 - 244 vAC
                      No I mean between F6(E1) and E2, so one prob on E1 and one on E2
                      What were you measuring back to and was F6 removed?


                      Originally posted by judgeboz View Post
                      I believe so from what I was told from the previous owner
                      Yeah so no reliable witnesses then

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                      • #12
                        with F6 fuse out between E2 and E1 is approx 17 vAC
                        with F6 fuse in between E2 and E1 is approx 243 vAC

                        The guy did say it did play it before it stop working years ago.

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                        • #13
                          Originally posted by judgeboz View Post
                          with F6 fuse out between E2 and E1 is approx 17 vAC
                          with F6 fuse in between E2 and E1 is approx 243 vAC

                          The guy did say it did play it before it stop working years ago.
                          Ok so pull all the fuses and check the AC input points on the rectifier board.
                          E2-E4, E5-E6 etc.

                          I'd say the bridges are toast, the GI is normally the first to go.

                          Click image for larger version

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                          • #14
                            Bally harlem globetrotters - power issue

                            Have had weird power readings when the ground wire braid was broken.

                            Also, have had broken wires at back of the rectifier board from the transformer.

                            Plus, GI canít blow its bridge rectifier.

                            Sent from my iPhone using Tapatalk
                            The Artist Formally Known As #1

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                            • #15
                              Originally posted by Dedrok View Post
                              Have had weird power readings when the ground wire braid was broken.

                              Also, have had broken wires at back of the rectifier board from the transformer.

                              Plus, GI can’t blow its bridge rectifier.

                              Sent from my iPhone using Tapatalk
                              Yeah my bad feature lights

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