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Hi Fi repair... anyone?

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    #11
    Cheers, I'll make detour one day on the way home if I can't see anything obvious.
    Science isn't about why, it's about why not. You ask: why is so much of our science dangerous? I say: why not marry safe science if you love it so much. In fact, why not invent a special safety door that won't hit you in the butt on the way out, because you are fired. - Cave Johnson

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      #12
      OK. Good luck. They close at 5pm but are open on Saturday.

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        #13
        Originally posted by gingerjedi View Post
        I have a Technics amp that’s about 15 years old but in good condition apart from one fault, the volume momentarily drops and sounds a little muffled every 30-60 seconds then returns to normal?

        Any experts have an idea what’s going on? It would be a shame to chuck it out if it's just a simple fix.
        Probably the electrolytics have shot, normally noticable residue can be seen on the board - I bought an old NAD 3020 about 5 years ago and replaced the electrolytics, putting life back into it - and gorgeous it is too.

        http://www.tnt-audio.com/ampli/nad3020e.html
        Last edited by FarmerPalmer; 23 June 2009, 20:53.

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          #14
          Originally posted by VectraMan View Post
          ....
          Is it worth fixing CD players? My Pioneer one that I bought with the amp has started skipping and refusing to play lots of CDs. I've been playing CDs in my DVD player as a backup.

          I figure I could probably get a Tesco Value replacement for £5 in this day and age.
          I remembered my ex Bro-in-law used to mend his (he had loads as he ran a string on mobile discos - he told me that the little lens thingy often sticks - so I did a quick Google and voila!

          http://www.repairfaq.org/REPAIR/F_cdfaq4.html#CDFAQ_020

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            #15
            Most likeley thing to fail is anything that moves, volume control, switches, speakers etc. see if the fault changes when you operate them.

            Caps could be the issue but moving parts fail most often.
            Always forgive your enemies; nothing annoys them so much.

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              #16
              Id put my money on defective electrolytics or cracked potentiometer.

              PZZ

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                #17
                Agree with 1st commenter, a capacitor, specifically a large electrolytic. They age.
                bloggoth

                If everything isn't black and white, I say, 'Why the hell not?'
                John Wayne (My guru, not to be confused with my beloved prophet Jeremy Clarkson)

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                  #18
                  I disconnected the lower frequency turned it on a set the volume to near max, I heard the fan kick in and go into overdrive.

                  Seems alright now? Must have blown a few cobwebs out??
                  Science isn't about why, it's about why not. You ask: why is so much of our science dangerous? I say: why not marry safe science if you love it so much. In fact, why not invent a special safety door that won't hit you in the butt on the way out, because you are fired. - Cave Johnson

                  Comment


                    #19
                    Originally posted by zeitghost
                    Those spiders are a real pain...
                    Would that be the spiders from Mars?
                    My all-time favourite Dilbert cartoon, this is: BTW, a Dumpster is a brand of skip, I think.

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                      #20
                      Originally posted by zeitghost
                      a bit of Hawkwind.

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