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This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022

 

Beosound 9000 Not Working (Non Responsive on Unit Buttons)

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Torquemeister
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Australia
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Torquemeister Posted: Tue, Dec 17 2019 10:14 PM

Hi Guys appreciate some help please. My BS9000 was working fine a few months back but now it sits in standby with the disc one illuminated. Beo4 no response. Power buttons lid open etc buttons no response on the unit itself.

I power off at the wall, leave for 30 minutes and power back up. Can hear the relay click as it sits in standby (red light on) and once again with the CD1 illuminated but no buttons on the unit itself will respond. 

Any ideas as to what may be the cause / a fix?

Thanks

AndersPersson
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Do you have speakers connected to the 9000?

Without speakers (or a plug faking speakers) the 9000 is pretty much dead as a doorknob.

marexy
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marexy replied on Thu, Dec 19 2019 7:04 AM

I think that is not issue.

It must be something inside BS9000

 

Weebyx
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Denmark
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Weebyx replied on Thu, Dec 19 2019 9:31 AM

Torquemeister:

Hi Guys appreciate some help please. My BS9000 was working fine a few months back but now it sits in standby with the disc one illuminated. Beo4 no response. Power buttons lid open etc buttons no response on the unit itself.

I power off at the wall, leave for 30 minutes and power back up. Can hear the relay click as it sits in standby (red light on) and once again with the CD1 illuminated but no buttons on the unit itself will respond. 

Any ideas as to what may be the cause / a fix?

Thanks

Have you tried to clean the 2 finger detect sensors ? It is a long shot though.

My suspicion is a defect CPU module, they look like the same used in BV7/BS3000/BS3200, and they die "often".

If you dont get it back to life, then it is possible to open the lid by "force", look in the service manual. Then open and remove the CPU unit, pull/replace the backup battery, and see if that does anything.

It should also be possible to release the sledge without service mode, it is also in the service manual, then you can move the sledge and remove the CD's. Sometimes the sledge optocoupler can cause weird issues if it is very dusty. Then the CPU wont know where the sledge is, and there is a very complex protection circuit to be sure sledge does not slam into the edges.

A more thorough approach, would be to begin measuring voltages/ripple from the power supply, to see if CPU gets the correct noise free voltage.

Happy error finding :)

/Weebyx

matador43
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matador43 replied on Thu, Dec 19 2019 11:18 AM

Weebyx:

My suspicion is a defect CPU module, they look like the same used in BV7/BS3000/BS3200, and they die "often".

If you dont get it back to life, then it is possible to open the lid by "force", look in the service manual. Then open and remove the CPU unit, pull/replace the backup battery, and see if that does anything.

Hi Weebyx,

Could this worth a try in a BS3000 too and maybe bring a "visibly dead" CPU to life or is this not related at all?

Weebyx
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Denmark
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Weebyx replied on Thu, Dec 19 2019 12:28 PM

matador43:

Weebyx:

My suspicion is a defect CPU module, they look like the same used in BV7/BS3000/BS3200, and they die "often".

If you dont get it back to life, then it is possible to open the lid by "force", look in the service manual. Then open and remove the CPU unit, pull/replace the backup battery, and see if that does anything.

Hi Weebyx,

Could this worth a try in a BS3000 too and maybe bring a "visibly dead" CPU to life or is this not related at all?

It was just a long shot also, I have not seen a dead CPU in BS9000 my self, but have heard about them. I have seen dead CPU's in BS3000 many times. the CPU PCB from BV7 can get the BS3000 back to life again though :) I have a thread about that :) So possibly the same BV7 CPU can fix a BS9000.

/Weebyx

marexy
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marexy replied on Thu, Dec 19 2019 2:11 PM

What if part of power supply or other PCB is faulty ?

 

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