blown amp?

danger boy
danger boy Posts: 15,722
edited March 2004 in Electronics
Hey how can you tell if your amp has a blown channel? My right channel sounds all distored. Kinda like if a driver was blown in a speaker.. that's the sound i'm getting from the right channel of my amp.

What do you think is wrong with it? the million dollar question. how much do you think it'll cost to fix it? it's a Yamaha integrated amp.. about 20+ years old.

thanks guys
PolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
Post edited by danger boy on
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  • kelley
    kelley Posts: 287
    edited February 2004
    Switch the speaker connections on the back of the amp and see if it swaps over to the other side. If it does, swap the speaker cables themselves to make sure it's not them. You want to eliminate everything in steps until you get down to the actual component. If it is the amp, open it up and look for any obvious signs of damage. You don't usually see much as far as something bad. Sometimes if you take a good sniff you can find out what burned up. I would venture a guess that you will end up paying more than it's worth to have something repaired if it has to be taken in. Most places charge $50-75 just to look at it. Now that Ebay's around there are just too many good deals to not consider replacing it. Good luck.
    SDS-400, SDA-1B, SVS 20-39pc+, B&K Ref 50, Denon 2900
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  • danger boy
    danger boy Posts: 15,722
    edited February 2004
    i did switch the speaker connections.. and everything i plug into the right channel is distorted. i changed speaker wires...

    I did buy it used on ebay.. as is. so i might take it in and have it checked out.. i guess if there is any possibility that it might only cost 50 to 70 bucks to get it fixed. that wouldn't be to bad.. but if it goes over so.. $100. then that's a whole other thing.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited February 2004
    One last troubleshooting thought:
    Is the distotion there for all sources?

    As for repair, I'd say that if you cannot spot an issue if you pop the cover off, e.g., fried component on a circuit board. loose wire, etc., the odds are low that you'll stay under $70.

    Most bench rates from reputable repair services are at least $50.
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • danger boy
    danger boy Posts: 15,722
    edited February 2004
    Yes the distortion problem is there for all sources. I will open it up Sunday and take a look under the hood. For me to find any problem it would have to be pretty obvious... as i'm not savy when it comes to circuit boards and things like that. At first I thought it was the monitor 7's i just got. But that's not the case.. the Monitor 7's sound great, just not the right channel coming from the amp.

    Update: Just spoke to a local Yamaha repair shop. they will charge me $20 to dianoigse the problem. repairs and labor will be extra of course. I think for $20, it would be worth it. Really how expensive can replacing bad parts be in a used amp? :confused:
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • racer4551
    racer4551 Posts: 373
    edited February 2004
    Danger boy over the summer we had a close lightning strike in our area that nocked out my receiver and amp plus left rear speaker and my monster power center,anyways to give you an idea the amp was a 5 channell adcom and the repair center found that it was just one channel that was damaged so they repaired it and with shipping and all it came to 300.00.Hope this gives you some idea.
    *HT PRE-PRO*:Rotel rsp-1068, *AMP*:Rotel RMB 1095 *DVD PLAYER*:Denon 2200,*CD PLAYERS*,Arcam Alpha Mcd 6 disk carasel,Hughes Hdtv receiver, Hughes hdvr2,*MAINS*:Polk LSI 15'S, *CENTER*:Polk LSIC, *SIDE SURROUNDS*:Polk LSIFX,*REAR SURROUND*:Polk LSI 7'S,*SUB*:SVS PB2+*.MONITOR*:Mitsubishi ws48413 hdtv,Monsterpower hts2500X2,,Sony playstation2,Harmony sst-659 remote
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  • racer4551
    racer4551 Posts: 373
    edited February 2004
    Danger boy over the summer we had a close lightning strike in our area that nocked out my receiver and amp plus left rear speaker and my monster power center,anyways to give you an idea the amp was a 5 channell adcom and the repair center found that it was just one channel that was damaged so they repaired it and with shipping and all it came to 300.00.Hope this gives you some idea.
    *HT PRE-PRO*:Rotel rsp-1068, *AMP*:Rotel RMB 1095 *DVD PLAYER*:Denon 2200,*CD PLAYERS*,Arcam Alpha Mcd 6 disk carasel,Hughes Hdtv receiver, Hughes hdvr2,*MAINS*:Polk LSI 15'S, *CENTER*:Polk LSIC, *SIDE SURROUNDS*:Polk LSIFX,*REAR SURROUND*:Polk LSI 7'S,*SUB*:SVS PB2+*.MONITOR*:Mitsubishi ws48413 hdtv,Monsterpower hts2500X2,,Sony playstation2,Harmony sst-659 remote
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited February 2004
    So it was $600??? :D

    db,
    It can get expensive, but if it'll only cost you $20 to find out how much... go for it.
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • danger boy
    danger boy Posts: 15,722
    edited February 2004
    Originally posted by Tour2ma
    So it was $600??? :D

    db,
    It can get expensive, but if it'll only cost you $20 to find out how much... go for it.

    lol i got it.. $600 double post.


    yeah that's my thought.. spend a few bucks to get it looked at.. then i can decide from there what to do.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • racer4551
    racer4551 Posts: 373
    edited February 2004
    Yeah sorry for the double post, damn back button! I think their initial check out fee was 50 bucks but then left it up to me to decide if i was going to put any money in it,so i agree with everyone else get it checked you never know it might be something simple.
    *HT PRE-PRO*:Rotel rsp-1068, *AMP*:Rotel RMB 1095 *DVD PLAYER*:Denon 2200,*CD PLAYERS*,Arcam Alpha Mcd 6 disk carasel,Hughes Hdtv receiver, Hughes hdvr2,*MAINS*:Polk LSI 15'S, *CENTER*:Polk LSIC, *SIDE SURROUNDS*:Polk LSIFX,*REAR SURROUND*:Polk LSI 7'S,*SUB*:SVS PB2+*.MONITOR*:Mitsubishi ws48413 hdtv,Monsterpower hts2500X2,,Sony playstation2,Harmony sst-659 remote
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  • danger boy
    danger boy Posts: 15,722
    edited February 2004
    what ended up being the problem with your Adcom? why so expensive to work on?
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • racer4551
    racer4551 Posts: 373
    edited February 2004
    Dont remember exactly but it was left rear channel circuit board and they also knew that monster was paying so..............
    *HT PRE-PRO*:Rotel rsp-1068, *AMP*:Rotel RMB 1095 *DVD PLAYER*:Denon 2200,*CD PLAYERS*,Arcam Alpha Mcd 6 disk carasel,Hughes Hdtv receiver, Hughes hdvr2,*MAINS*:Polk LSI 15'S, *CENTER*:Polk LSIC, *SIDE SURROUNDS*:Polk LSIFX,*REAR SURROUND*:Polk LSI 7'S,*SUB*:SVS PB2+*.MONITOR*:Mitsubishi ws48413 hdtv,Monsterpower hts2500X2,,Sony playstation2,Harmony sst-659 remote
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  • danger boy
    danger boy Posts: 15,722
    edited March 2004
    i called the repair shop today to find out how repairs were going on my vintage Yamaha integrated amp.

    they said.. they replaced one resistor. and had to order a second one.. repair costs should be under $70 total. not to bad.. can't wait to get it back home.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • danger boy
    danger boy Posts: 15,722
    edited March 2004
    very happy. I picked up my Yammie amp today.. total cost of repairs. $32.31 not bad huh?

    I'd say if anyone has any vintage gear they need repaired. i'd check into getting it fixed. It may be less expensive than you think. That was the case for me anyways.

    Amp sounds good hooked up the Monitor 7's. those babies have some nice bass going on. I'm impressed as hell.
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited March 2004
    Did you ever get a tuna for your rig?
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • Tour2ma
    Tour2ma Posts: 10,177
    edited March 2004
    .. cause you can tuna piano, but...

    db,
    Glad to read the good news. Always nice to only pay a little to get an old fella back on his feet.
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "Death doesn't come with a Uhaul." - Dennis Gardner
    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
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  • danger boy
    danger boy Posts: 15,722
    edited March 2004
    Russ, the tuna i'm using now is a POS Sansui digital tuner.

    I'm low on funds at the moment. till the tax returns shows up :D

    but i'd like to have a silver faceplate vintage tuna to match the Yammie amp. if not a Yammie tuna.. then a Pioneer or something in that range. but must be silver faceplate. I guess the analog Sansui's are all black that i have found. Not many of them come up on Ebay very often.

    i'm still under my $500 budget.

    amp $130 + $32.31 to repair
    Monitor 7's $100
    POS Sansui $19
    grand total______
    $281.31 *(does not take into account shipping costs)
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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  • RuSsMaN
    RuSsMaN Posts: 17,986
    edited March 2004
    I was asking because I picked up a minty CT-610 Mark II yesterday from my scrounger.

    I need to get some new bulbs in it, then I can get back to you on it if you want.

    Cheers,
    Russ
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • danger boy
    danger boy Posts: 15,722
    edited March 2004
    sure. sounds good Russ
    PolkFest 2012, who's going>?
    Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin:
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