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Sony SMD-HS73

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    #101
    Re: Sony SMD-HS73

    Originally posted by retiredcaps View Post
    Just out of curiousity, what is the part number for IC2 on the backside of the power board?
    200D6 PZDC

    This looks like it should be right.
    http://www.alldatasheet.com/datashee...1200D60R2.html

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      #102
      Re: Sony SMD-HS73

      What is the model number for Q3?
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        #103
        Re: Sony SMD-HS73

        Sorry, one more. What is the part number for the diode that is providing the 12V rail? It will be one of the two that is mounted on the heatsink.
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          #104
          Re: Sony SMD-HS73

          Originally posted by retiredcaps View Post
          What is the model number for Q3?
          SSS6N70A 341
          http://www.alldatasheet.com/datashee.../SSS6N70A.html

          Originally posted by retiredcaps View Post
          Sorry, one more. What is the part number for the diode that is providing the 12V rail? It will be one of the two that is mounted on the heatsink.
          I had to remove the cap from in front of it to get the number...

          UD6340 STPS10 150 CT

          http://www.alldatasheet.com/datashee...STPS10150.html

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            #105
            Re: Sony SMD-HS73

            Sorry I haven't been working on this one while I was waiting for my Blue ESR meter kit to arrive. I came in Monday and I put it together last night. I seem to have gotten it right the first time.

            Anyway, I've been testing some of the caps I pulled off this board. It has been long enough that I'm not 100% sure of which through-hole caps were from this board, but for the logic board, it was the only one I removed SMD caps from. 3 of them seemed to be likely bad based off of the FC series data sheets. (I can't tell what brand, the only markings other than voltage and capacitance is what looks like 30I1 on the 47uF, and 3a on the 10uf cap, all 16v.)

            The 10uf cap was at 15Ω, as opposed to the FC spec at 3Ω. The 47uf caps were at 6.2Ω & 7.3Ω compared to the FC spec at 1Ω.

            I should be working more on this board over the weekend. I'll be trying to trace down possibly bad components on the board.

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              #106
              Re: Sony SMD-HS73

              Originally posted by torin3 View Post
              The 10uf cap was at 15Ω, as opposed to the FC spec at 3Ω. The 47uf caps were at 6.2Ω & 7.3Ω compared to the FC spec at 1Ω.
              Just remember that if the equivalent FM caps are available, they have even lower ESR.
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                #107
                Re: Sony SMD-HS73

                Originally posted by retiredcaps View Post
                Just remember that if the equivalent FM caps are available, they have even lower ESR.
                Ok, I'm apparently completely missing the point you are making.

                Since I've already replaced the caps with FC series caps I'm not planning on replacing them again unless they go bad. I don't know what brand/series were on there originally, so I can't say for certain that they are out of spec, but again, going by FC specs, they certainly seem to be going bad. Especially since 3 other caps, including at least 1 more 47uF cap all tested much lower.

                But I'm not sure why you are telling me that FM would have lower ESR. I'm aware that relative to FC there are caps that would have lower or higher ESR specs in those can sizes.

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                  #108
                  Re: Sony SMD-HS73

                  Originally posted by torin3 View Post
                  But I'm not sure why you are telling me that FM would have lower ESR. I'm aware that relative to FC there are caps that would have lower or higher ESR specs in those can sizes.
                  No real point. Just trying to say that FM has lower ESR than FC.
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                    #109
                    Re: Sony SMD-HS73

                    Originally posted by retiredcaps View Post
                    No real point. Just trying to say that FM has lower ESR than FC.
                    Ok. No problem. Just wanted to make sure I wasn't missing your point.

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