Vintage receiver clean up help

gacole2000
gacole2000 Posts: 255
edited February 2006 in Electronics
Hello,

I have a vintage Pioneer and Yamaha receiver that I think need a good cleaning. The both still work excellent, except that whenever you turn up the volume it is REALLY scratchy and the channels kind of fade in and out until you find a "sweet" spot, then all is well. I think I read somewhere that this is caused by dirty contacts? If this is true, can someone point me to a good article on exactly how to solve this problem. I am fairly handy and feel confident I can do it with the proper guidance. Please advise. Thanks!

Regards- Greg
AVR: Yamaha RX-V661
DVD: Yamaha DV-C6480
BR: Samsung 1600
Mains: Polk RT55 (bi-amped)
Center: CS300
Sides: FX1000
Rears: RT/FX
Subs: SVS 20-39 PC+ 12.3 & DIY SVS 12.2
Projector: Optoma HD70 w/ 106" Elite Screen
Power: Panamax MAX 5100
Remote: Harmony One
Post edited by gacole2000 on
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Comments

  • dorokusai
    dorokusai Posts: 25,577
    edited February 2006
    www.caig.com
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • jimi64
    jimi64 Posts: 85
    edited February 2006
    If your comfortable with getting into them with a soildering iron,hit all the solder points with a hot iron.They are known to deteriate which can result in what you are experienceing.Happy soldering!!!
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  • dorokusai
    dorokusai Posts: 25,577
    edited February 2006
    Solder connections fail due to movement or improper soldering in the first place(e.g. cold joint). They just don't "decide" to fail.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • jimi64
    jimi64 Posts: 85
    edited February 2006
    Didnt say they (decided to fail).They do fail from time to time for whatever reason and a person can go in there with an iron and clean up any bad connections.All said and done for the few cents it costs to run the soldering iron.Without there being any failure due to parts,this will fix the problem 99 percent of the time-without buying an overprived fix-it-from a sales rep
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  • dragon1952
    dragon1952 Posts: 4,907
    edited February 2006
    Like doro said...easy fix. Pop the cover and hit the pots with some electrical contact cleaner. Works like a charm.
    2 channel - Willsenton R8 tube integrated, Holo Audio Spring 3 KTE DAC, audio optimized NUC7i5, Windows 10 Pro/JRiver MC29/Fidelizer Plus 8.7 w/LPS and external SSD drive, PS Audio PerfectWave P3 regenerator, KEF R3 speakers, Rythmik F12SE subwoofer, Audioquest Diamond USB cable, Gabriel Gold IC's, Morrow Audio SP5 speaker cables. Computer - Windows 10/JRiver, Schiit Magni 3+/Modi 3+, Fostex PMO.4n monitors, Sennheiser HD600 headphones
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  • gacole2000
    gacole2000 Posts: 255
    edited February 2006
    Thanks for your replies. I went to Rat Shack after finding a good thread online. Bought a $9 can of contact cleaner, hit both volume knobs and they are both working like a champ. Sweet!!
    AVR: Yamaha RX-V661
    DVD: Yamaha DV-C6480
    BR: Samsung 1600
    Mains: Polk RT55 (bi-amped)
    Center: CS300
    Sides: FX1000
    Rears: RT/FX
    Subs: SVS 20-39 PC+ 12.3 & DIY SVS 12.2
    Projector: Optoma HD70 w/ 106" Elite Screen
    Power: Panamax MAX 5100
    Remote: Harmony One
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  • dorokusai
    dorokusai Posts: 25,577
    edited February 2006
    They fail via fatigue and usage, not by existence.

    The touch-up idea, via soldering iron, is solid. I've worked out more than a few issues via soldering iron work.
    CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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  • TroyD
    TroyD Posts: 13,093
    edited February 2006
    The contact cleaner at RS is crap.

    Caig products is where it's at.

    BDT
    I plan for the future. - F1Nut
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  • jcaut
    jcaut Posts: 1,849
    edited February 2006
    TroyD wrote:
    The contact cleaner at RS is crap.

    Caig products is where it's at.

    BDT

    Glad you got it working, but I'll second the above comment. In the future I would recommend against using the contact cleaner from RS on anything that you actually care about.

    Jason
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