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CRT oscilloscope display problem !!

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    #21
    Re: CRT oscilloscope display problem !!

    These may also be of help?
    Attached Files

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      #22
      Re: CRT oscilloscope display problem !!

      Thanks to all of you for the support , and for the PDFs , they will be certainly helpful .


      Last edited by SM-Piyes90; 06-08-2014, 05:18 AM.

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        #23
        Re: CRT oscilloscope display problem !!

        What did you figure out with it. What was the issue

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          #24
          Re: CRT oscilloscope display problem !!

          Originally posted by audiofreak19 View Post
          What did you figure out with it. What was the issue
          I have not figured anything out yet , i am still analysing the schems and mainly the attenuators circuits witch i suspect the most .

          I hope i can find something in that section .

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            #25
            Re: CRT oscilloscope display problem !!

            Hi again everybody. Am back to the scope repair .

            This time i got the real5502 schemes.


            Can someone here explain how the signal is transmitted from the input to the HV crt screen?


            Here are the schemes :
            Attached Files
            Last edited by SM-Piyes90; 01-09-2015, 01:59 PM.

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              #26
              Re: CRT oscilloscope display problem !!

              Originally posted by stj View Post
              o.k. i did some searching.

              they trade under the name "Protek"
              and i found a newer manual that may be close.
              hello, I have a protek 6506 with excess brightness, I hope with this diagram that you have published to be able to fix it, thanks

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