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Stereo and speakers

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  • Stereo and speakers

    Have a ‘92 BR200 with 4 speakers and a radio. Radio turns on and appears to tune, but I can only faintly hear sound. Tried ohming out a speaker...appeared to test fine, but only did one? Any diagnostic tips to troubleshoot between the radio and speakers?
    1992 Searay 200BR | Mercruiser 4.3LX (SN: D826758 | Alpha 1 Gen 2 Housing (SN: 0D771909 | SEI 116 Upper & Lower Unit

  • #2
    You need to do some basic trouble shooting. If you don't know how, then I would suggest a place that installs audio equipment in cars.

    You would need an additional sound source to test each speaker, and an another speaker to test the amp output. Make sure the speakers wiring has the polarity correct.

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    • #3
      your still on the original radio? most die after about 10 years in a marine environment
      Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

      1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

      Past Boats
      1970 Wooster Hellion - Merc 9.8
      2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
      1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

      What’s behind you doesn’t matter.Enzo Ferrari

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      • #4
        If you don't have much electronic experience, I'd suggest you take one speaker, that you know for certain is good, and wire it up at the radio/amp/head unit to see if it works. If even one of the outputs are bad, I'd say buy a new unit and carry on. It would cost more to fix the defect radio then you can buy a new one for... JMHO
        Tom Boy Boat Project https://forums.iboats.com/forum/boat...s-what-trailer
        Rebuilt trailer project https://forums.iboats.com/forum/gener...r-back-to-life
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        • #5
          A little more info would help, what make and model stereo do you have ?

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          • #6
            Put a meter on the speaker wires. No voltage is a blown output transistor.

            Sounds, pun intended, like a shorted speaker. Connect a speaker know to be good to verfiy operation
            ....

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            • #7
              Originally posted by dingbat View Post
              Put a meter on the speaker wires. No voltage is a blown output transistor.

              Sounds, pun intended, like a shorted speaker. Connect a speaker know to be good to verfiy operation
              dingbat, I think you may be thinking about older stereo systems. Rarely do any of them anymore have discrete output transistors these days.They mostly use quad IC amp for their outputs.That is why I suggest he buy a new unit if even on channel is bad.

              I too remember those days when they used power transistors and such, as well. But to get so many options in such small units, they gone to power ICs and micro-controllers for everything now.
              Tom Boy Boat Project https://forums.iboats.com/forum/boat...s-what-trailer
              Rebuilt trailer project https://forums.iboats.com/forum/gener...r-back-to-life
              '76 40 HP Johnson rebuild https://forums.iboats.com/forum/engin...mplete-rebuild
              Minn Kota 599 Project https://forums.iboats.com/forum/boat-...ta-599-project

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              • #8
                in a world of $99 head units with new speakers....why not replace it.
                Cheesehead boating the Gulf Coast of FLA 27.51° N, 82.53° W

                1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - https://forums.iboats.com/forum/owner...988-rogue-2420

                Past Boats
                1970 Wooster Hellion - Merc 9.8
                2002 SeaRay 190BR - 5.0 - A1G2 - "Cheeseheads in Paradise"
                1984 Avanti 170DLI -3.0 stringer- "Ship Happens"

                What’s behind you doesn’t matter.Enzo Ferrari

                Comment


                • #9
                  Sign up today
                  Agree on the world of 99 units and just replacing. The unit is old so probably just shot. Thanks for the input everyone!
                  1992 Searay 200BR | Mercruiser 4.3LX (SN: D826758 | Alpha 1 Gen 2 Housing (SN: 0D771909 | SEI 116 Upper & Lower Unit

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