Mono-block is toast

BuckeyeTim
BuckeyeTim Posts: 483
edited June 2010 in 2 Channel Audio
So one of my amps is on the fritz again. I am about to give up on it. I just brought it home from being serviced for the second time in 3 months and it still has issues.

If you remember, I had it serviced a few months ago for a crackling static noise. The shop I took it to said that the board had begun to carbonize due to the years ago problem with leaking caps. They had to separate some components from the board and hardwire them to get around the bad parts of pc board.

All was good for about a month when all of a sudden the distortion light would come on at power-up and then fade away. Everything still sounded fine and dandy. After several weeks of this, it started to develop the static/crackle.

I decided to take it to a local place. They guy spent 2 weeks replacing a couple more caps and then using a very fine tip on a Dremel to try and grind away the carbonization between some of the traces on the board. He thought he had it taken care of, but as soon as I fired it up....the same problem exists. Distortion light comes on and then the static and crackling.

I think I am about to give up on it. Unless I can find another board (which I doubt) or I can find someone that wants to part with a single one (which I doubt)...I think I am screwed.

I guess it is time to find another amp/amps.
Post edited by BuckeyeTim on
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Comments

  • leroyjr1
    leroyjr1 Posts: 8,785
    edited June 2010
    Try contacting Ben, he has worked on Adcom's in the past.
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  • fbm211
    fbm211 Posts: 1,488
    edited June 2010
    +1^^

    You should also ask the guy who repaired it if he stripped the boards of ALL the old parts,cleaned the boards in a sonic bath and then repopulated the boards with ALL NEW caps,resistors,etc..
    SDA-2BTL with custom IC
    Adcom 565 monoblocks--Monarchy Audio M-10 preamp
    Theta Data Basic Transport--Stello DA100 Signature DAC--Camelot Dragon Pro2 MK III
    Harman Kardon T-55c TT
    DH Labs Q-10 Signature Speaker Cables With Furez silver plated copper bananas
    Revelation Audio Labs Prophecy Cryo-Silver Reference AES/EBU
    Revelation Audio Labs Prophecy Cryo-Silver i2s digital cable
    4 Furutech FP-314Ag with FI-11cu Plugs/FI-11AG IECs--- Power Cords
    DH LABS REVELATIONS ICs-amps
    Revelation Audio Labs Paradise cryo-silver ICs-Source to pre
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  • Conradicles
    Conradicles Posts: 6,081
    edited June 2010
    Wew, I would sell those puppies. The working unit would make a killer amp for a passive subwoofer.
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  • leroyjr1
    leroyjr1 Posts: 8,785
    edited June 2010
    Conradicles wrote: »
    Wew, I would sell those puppies. The working unit would make a killer amp for a passive subwoofer.

    No reason to give up on them yet. I would find someone that knows how to fix them properly, they're worth it.
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2010
    shoot me a PM if you want them fixed.
    Ben
    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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  • BuckeyeTim
    BuckeyeTim Posts: 483
    edited June 2010
    ben62670 wrote: »
    shoot me a PM if you want them fixed.
    Ben

    On its way Ben, and thanks for the offer. I love these things and would be heart broken to have to retire them.
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  • zingo
    zingo Posts: 11,258
    edited June 2010
    ben62670 wrote: »
    shoot me a PM if you want them fixed.
    Ben

    Ben saves the day again!
    Jake
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  • Zitro
    Zitro Posts: 864
    edited June 2010
    Geez Ben, what don't you do? lol
    - Jeremy

    Amps: Jolida FX-10, NAD 3045, NAD C320BEE, Sansui G-9700
    Speakers: Polk Monitor 7A's, KEF Reference 104aB
    Sources: ProJect Debut Carbon, Sonos streaming FLAC
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2010
    Plumbing and sheet rock.
    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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  • Zitro
    Zitro Posts: 864
    edited June 2010
    ben62670 wrote: »
    Plumbing and sheet rock.

    LOL do you know of a good person I can send a vintage receiver to if I want it restored?
    - Jeremy

    Amps: Jolida FX-10, NAD 3045, NAD C320BEE, Sansui G-9700
    Speakers: Polk Monitor 7A's, KEF Reference 104aB
    Sources: ProJect Debut Carbon, Sonos streaming FLAC
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  • ben62670
    ben62670 Posts: 15,969
    edited June 2010
    I never worked on vintage receivers minus a few Adcom's.
    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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  • BuckeyeTim
    BuckeyeTim Posts: 483
    edited June 2010
    I spoke to Ben for a few minutes earlier today and it looks like my amp is heading south for repairs. I just hope that it is not beyond fixable.

    Thanks to Ben for even offering to look at it! This one of those things that makes CP so great...the people.
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  • FTGV
    FTGV Posts: 3,649
    edited June 2010
    Good on Ben he's a generous lad with his time and talents for sure.Hopefully the tech did'nt monkey it completely.
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