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Amp goes 20 when turned on to lisen a cd or what ever

I use the remote to turn on the amp so i can lisen to a cd but
the volume goes to 20 how can i solve this problem
amp LINKMAN LM-5040

your sincerly
geoff anderson

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Posted on Jan 02, 2017

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SOURCE: I have a SONY amplifier, TA-F410R. When I turn it

My 1st thought would be the main power supply capacitors.
If they are dried out or "leaky" they WILL take a long time b4 the power supply gets up to where it will run the amp
Get the main capacitors replaced

Posted on Nov 03, 2010

Testimonial: "Wow, what a fast answer. I will get new capacitors and replace them. I hope this is the right solution for my problem, but I have faith."


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Are you running the audio through an amplifier? If so, it sounds like you are using the blue wire (power antenna remote turn on) instead of the blue/white wire (amplifier remote turn on). The power antenna remote turn on turns off when leaving tuner mode, turning the amp off.

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thers a problem on the amp module on the back of the bassbox or a problem with the CD 20 volume output being reduced over time or lastly and quite simply the remote is fualty.

in each case the problem is easy to track down.
1st. take batteries out of remote ( and any other bose remotes that may control the cd 20, ) if the problem goes, get a new remote, impossible to fix unless its obvious mechanical damege to remote.

2nd get a loaner from somebody else or the shop of either cd 20 or bassbox, ( it doesnt really matter for the purpose of the test which nor which bassbox you try, it dosent have to be perfectly acoustically matched to see if the sound is dropping., once the cables match up. ) this will eliminate the possible probelm in either remaing unit.

as far as repair is concerned. you could have a go if you wanted to mess around witha lot of baord level electronics, but once youve identified the cause of the problem i suggest get a bose authorised repair or buy a spare one second hand. ( you'll only need the faulty part complet and in tact)

whatever you do.......... don't open the bassbox, as its a few years old the chances are you'll not be able to seal it back up properly in a way that will rerproduce the same quality of sound. and even if the bassbox is not at fault you'll probably have to suffer an ugly looking repair or a new bassbox that isnt necessary.
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i would bet you have a faulty remote or at worst a control voltage problem in the CD20 unit.

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