Question about Yamaha DSP-A3090 7-Channel Amplifier

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Alex heya, I have a yamaha DSP-A-3090 and i have a problem with the nobs that select the input, tv, aux, vcr etc... the nobs dont proparly select the input so the picture and sound flickers whislt im watching tv. I took the cover off the amp out can't get to the nob, and anyway i dont knoe what to do. If you could help me it would me nice. thanks and have a nice day.

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Lelex, maybe 5 years ago there must still be a solution toy our problem but right now, after more than 10years past the unit's first appearance in the market, no more parts for this. But you can still try in your area..

the problem with your DSP is the input selector switch only... very simple trouble but very hard to find a replacement. This is a top of the line model bro.... i have seen a lot use this in its first years and no porblem at all. after a year complains starts to comeup, switch problem all of them. the contacts of the mechanical switch is not that good easily gets loose. They modified after a year maybe and the replacement part was having gold plated contacts. If only you had it done in the early years then your units should still be in top condition. You can have it tried cleaned by contact cleaners but no guarranty to last maybe weeks only. sorryyy but unless you find a replacement then you are stuck with that problem.

redrivera0314@yahoo.com

I am a Yamah service Tech at Saudi Arabia before.

Posted on Mar 19, 2008

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Hi Lexex

Well it sound like the know what is the problem, very common on yamaha , second class unit's, mind there better then other brand that I've seen and I do prefer yamaha, I feel they take more pride in there consumer products then others big brand.
There not easy to change, you can call yamaha and order the control first to see what it looks like then know how to attack it. Some of the model they will ship the complet board you won't know until you get it.
Keep in mind there very hard to reach, you will have to take the top off, buttom off and then the intired front off just to reach the control and then replace it, I have tried to clean them but they dont' last or they cause the contract to fall apport depending on the material they used and what type of contact cleaner you have used, some or plastic frendly.... this is the one you need, you can also use brake cleaner, I find better, but they don't lubricate like contact cleaner witch has silicon lubrication in them.

I hope this help

What About Bob

Posted on Feb 12, 2008

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Posted on Jan 02, 2017

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