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Thread: Adcom 5800

  1. #1

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    Unhappy Adcom 5800

    Today is not a good day for me. I had one Adcom 5800 hookup to my SDA SRS and when I power up I saw the light on R CH for Distortion alert. I did power of the amp and saw there are two green light for each CH and one stayed on. I look all wiring and try to poer up but it did not. It is now blowing main fuse back of the amp. Just to let all of you know that the inner green light of r side sty on after new fuse go bad. Any Idea what went wrong on that amp. I was going to get two used Adcom on this Sunday 5802 and two 565 mono. I had one amp that is almost25 year old Pioneer it still in working oder but that Adcom make me have a sad day. Thanks Roy. I like to say Sorry to all of you if I am able to wirte will because I did not grow up in US.

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    The 5800 isn't a common ground amp. The negative terminals need to get grounded together

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    Remember RoyBoy I also mentioned in your other thread the 5802, 565 are NOT common ground. Neither are the 585, 5800, 5500.

    Sorry you had to learn the hard way. Hopefully it can be repaired fairly easily.

    H9

    P.s. You can NOT use non-common ground amps with SDA's. Always, Always check before hooking up an amplifier to SDA's
    Last edited by heiney9; 06-26-2009 at 01:58 PM.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

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    OH boy now i know. I did not check that amp. Is that way when I power up there was a paping in speakers ?. Totaly for got about it and now I have take care it. thanks for the info. Now I am a Roy bad boy.
    Last edited by ROY BOY; 06-26-2009 at 02:12 PM.

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    Quote Originally Posted by ROY BOY View Post
    OH boy now i know. I did not look in to that.
    I feel for you. I may just be the resistors that tie each ground to the chassis, so maybe the repair bill won;t be too bad.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

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    Quote Originally Posted by heiney9 View Post
    I feel for you. I may just be the resistors that tie each ground to the chassis, so maybe the repair bill won;t be too bad.
    I check all of them and they all have same reading. I like to know there are two green light for each CH and way only one stay on. Thanks
    Last edited by ROY BOY; 06-26-2009 at 02:41 PM.

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    Ok I had check all resistors on top of caps and one side read 1.5 M oms and the other side read 00.6 oms. I think that one is gone bad. other then that rest of all one side to other read same. need to know where I can get new one. thanks

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    Quote Originally Posted by ROY BOY View Post
    Ok I had check all resistors on top of caps and one side read 1.5 M oms and the other side read 00.6 oms. I think that one is gone bad. other then that rest of all one side to other read same. need to know where I can get new one. thanks
    OK. I had a bad resistor in top of Caps bord in location R102 which read only 00.6 oms. Other side moor like 1.5 M oms whit dvm. Where can I get that resistor ?. I am going to call adcom today but like to know if any one of you think that I need to replace some other parts whit that resistor ?. Thanks Roy

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    PM Ben62670 he might be able to help you out.

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    Time to build one of these or buy a new amp: http://www.polkaudio.com/forums/showthread.php?t=74472
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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    Quote Originally Posted by Face View Post
    Time to build one of these or buy a new amp: http://www.polkaudio.com/forums/showthread.php?t=74472
    I want to build one of those even though I don't have Mono Amps!!

    It just looks so Cool.

    I think i will use a Lexan top on mine
    Polk Audio SDA SRS 1.2TL's
    With new Exotic wood, Sonicaps, Mills & RDO198's - Born on 4-24-1989 and Signed by Matthew Polk!!!!


    My Polk SDA SRS 1.2TL's http://www.LASAREATH.com/


    It All Started here: http://tinyurl.com/lasareath2

    Part Deux: http://tinyurl.com/lasareath3

    Car Stereo---->http://www.salsleaf.com/leaf_stereo/index.htm<---- NEW for 2013

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    Quote Originally Posted by Lasareath View Post
    I want to build one of those even though I don't have Mono Amps!!

    It just looks so Cool.

    I think i will use a Lexan top on mine
    I always knew you had a thing for trannies. :D

    I have a feeling I'll also be building one of these down the road.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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    Quote Originally Posted by hearingimpared View Post
    PM Ben62670 he might be able to help you out.
    Thanks. He ask me to call him but I did not have his #. So I send a PM to ben few days ago whit my #. I think he is out of twon. Because I have not got any call or PM from him yet. I know he is the man how can help me out. I also call Adcom and lift a voice M but so far no call from them. Thanks Roy
    Last edited by ROY BOY; 06-29-2009 at 10:49 AM.

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    sorry to hear about your amp, the silver lining is you can know get something much better for the same price to drive your SDA, the Adcom is harsh with SDA and has unrefined circuitry. As said you need a common ground amp. Additionally, I would talk GV27 about your present amp, I believe he is a certified audio technician, never send your products too anyone not certified, just bad juju for you.

    In any event Polk Audio has no affiliation with any member.

    RT1
    Last edited by reeltrouble1; 06-29-2009 at 11:34 AM.
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    [QUOTE=reeltrouble1;1101314]sorry to hear about your amp, the silver lining is you can know get something much better for the same price to drive your SDA, the Adcom is harsh with SDA and has unrefined circuitry. As said you need a common ground amp. Additionally, I would talk GV27 about your present amp, I believe he is a certified audio technician, never send your products too anyone not certified, just bad juju for you.

    In any event Polk Audio has no affiliation with any member.

    I never had adcom before so I waned to try but for got about grund issue. Any way I got call from steve how work in part deparment and he sad that that amp need to be send to there repair center and I can not do any repair to it by my self. I am auto tec and do lots of ELEC repair in car. If I can get the parts and how to do some moor test then I can repair that unit. As long go how that sound I did not like it. It my be because I did not do the hook up the way needed to get done. Take care Roy

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    Hi every one. I am going to send that Amp to service center and like to know if any update need to get done ?. Like new Caps or any thing else. If any one know any good repair shop in Long Island New York Where I can go to ?. Any info will help. Thanks Roy

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    Where are you located?
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

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    Quote Originally Posted by ROY BOY View Post
    Hi every one. I am going to send that Amp to service center and like to know if any update need to get done ?. Like new Caps or any thing else. If any one know any good repair shop in Long Island New York Where I can go to ?. Any info will help. Thanks Roy
    Quote Originally Posted by ben62670 View Post
    Where are you located?
    :D

    If you can't find anyone who specializes in Adcom in the area, I have someone in central Suffolk.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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    Quote Originally Posted by Face View Post
    :D

    If you can't find anyone who specializes in Adcom in the area, I have someone in central Suffolk.
    Hi Face. I am in Hunthington station on 110 zip 11746 in Suffolk. I went to ADCOM web and see only one place in Smith twon. Any body else ? can do the jab that well be nice to know.
    Last edited by ROY BOY; 07-08-2009 at 07:00 AM.

  20. #20

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    Quote Originally Posted by ROY BOY View Post
    Hi Face. I am in Hunthington station on 110 zip 11746 in Suffolk. I went to ADCOM web and see only one place in Smith town. Any body else ? can do the jab that well be nice to know.
    Hi. I like to know if any one of you used that person to have any work done ?
    It call
    The sound sergeon
    1041G wesr jericho TPKE
    Smithtown 11787
    631 864 2450

  21. #21

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    Never heard of them, but that's not necessarily a bad thing.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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