Beomedia 1 issue - solved!

Hi,

since some days my BM 1 shows the following view:

I can reset it with a keyboard to proper function. After stand by operating it again, it shows the same picture. Any idea?

Thanks and kind regards,

Rolf

Hi,

most likely your CMOS battery is empty or defective.
It`s a coin-cell (CR2023) that is located under the PCMCIA slot. 

BR,
BeoMotion 

Thanks a lot. Do I have to open the whole casing, or is there an other way of replacing it? Btw, do you mean CR2023 or CR2032?

Kind regards,

Rolf

Oh sorry, yes there is a typo. I mean CR2032 of course.
Unfortunately you have to open the case and even have to unscrew and remove the stacked on PCMCIA board since the battery is right below it.

BR,
BeoMotion. 

I will try to manage the exchange . Last question: What function is powered by this coin-cell?

Kind regards,

Rolf

My question was only to increase my posting record . The answer is in your first post. Thank you so much.

Kind regards,

Rolf

Okay, please keep us updated :-)

The CMOS-SRAM is a little storage IC that holds the BIOS settings. It needs to be powered all the time otherwise the data is lost and you get that warning message. This battery powers the CMOS when the PC is switched off. The first thing to replace when getting this type of message.

Thanks for your expertise and the additional infomation. I'll keep you posted.

Kind regards,

Rolf

Had the exact same message displaying on my BM1. Went into repair. Nine capacitors were burned and were replaced. It came back OK, but cost me 300€.

Yes, the internal SMPS often fails due to low quality capacitors that blow up at some time.
Normally this ends in BM1 not starting at all. So thanks for the tip that this can also lead to this message.

You can optically check the capacitors of the SMPS (the stacked on PCB with the two larger yellow inductors). If they are blown up and the hotglue isn't holding them in place any more they have most likely reached their end of lifetime.
If you know how to solder they are easily replaceable but you can also buy they whole SMPS unit new.
This is exactly the same and much cheaper at the original manufacturer:  http://www.mini-box.com/PW-200M-DC-DC-power-supply

I would try to replace the battery first.

I bought the item as new in April 2012, coming with a 3 year B & O warranty. 7 month later the unit did not start at all. I sent it to my dealer for repair. He ordered a special BM 1 repair case from B & O to replace the burnt capacitors and it was all covered by the warranty.

The new incident happened 2 or 3 month after the warranty period expired . I guess, if it's the battery, it were not covered by the warranty.

If it is more severe, I'm not sure how to react. For € 300,00 you can still buy a new one at a dealer/ on ebay. But Beomaster 5 would be the choice for a replacement unit, having the Moment as state-of-the-art addition in my mind.

Kind regards,

Rolf

First rainy holiday, time to check on the Beomedia 1:

I made some pics and want to share the experience, maybe it helps in other cases. And it was fun .

So, tools and accessories at hand:

    

Torx 8              Torx 10           Small standard                  Replacement

                                                  screwdriver                        coin-cell

A3 ready to support me with fine sound (work can also be supported by other B&O equipment ):

 

 

To open the casing I have to unscrew the 8 screws at the bottom rim:

Amazing, 6 can be unscrewed using a T 8, for 2 I have to use a T 10 .

Now I slide the bottom plate, which is connected to the back plate, out of the cover:

According to the expert advice, the coin-cell has to be underneath the PCMCIA board:

It is at the right lower side. Three connecting cables running over it, looking a bit tight! Examining a bit further, it looks like they are loose enough to allow lifting and pulling the board out.

Two screws hold the board and have to be unscrewed.

Trying to lift the board, I can feel a resistance on the right side (looking at the pic above). It comes from a wrapped connection. Lifting carefully but stronger than before it separates without a problem and can be pulled out underneath the cables. Below, at the lower side, you see the female part of the wrapped connection at the boards bottom.

Battery exchange is in progress! It is were it should be, right underneath the PCMCIA board. What an inconvenient place. But there might be other restrictions, which may have led to place it were it is now. Although, the placement of the cables is also strange, there is so many space inside, but they have to run over the one unit, which is likely to be moved at some time or another.

The coin-cell sits very tight in it´s socket. How to pull it out? B&O took care of a clever mechanism for exchange purposes: There is a switch which you find in the lower pic at the bottom side, showing two pins at the top. Pushing it away from the battery, a clip from underneath moves up, lifting the battery, so that you can easily remove it from the socket!

Now exchanging a Japanese accessory with an Indonesian made:

        

Original                                       Replacement

The coin-cell can be pushed gently in the socket, the switch snaps in and locks it in the socket.

After that, redoing the stages, the BM 1 should be ready to deliver again.

Battery exchange in Progress! It is were it should be: Right underneath of the PCMCIA board. What an inconvenient place. But. there might be restrictions I do not know of, to have led to place it were it is. Although, the placement of the cables is also strange. There is so many space inside and they are placed above the one unit which likely has to be moved the one or another time.

Trying to pull out the coin-cell, it sits very tight in its socket. How to pull it out? B&O took care of a clever mechanism: There is a switch which you find on the lower side of the pic, having 2 pins on top. Pushing it away from the battery it lifts a clip which is moving at the same time the battery up. So you can remove it easily!

Replacing the original coin-cell with its replacement:

Redoing the stages, closing the casing, and the BM 1 should be ready to deliver again.

First, the same pic comes up as posted initially. I take the keyboard, connecting it to the unit. Then following the onscreen instructions and pushing F10, followed by confirming the command "basic setup" which is marked by default. After that the BM 1 is booting and displaying the familiar menu, but with a small red dot on the lower right side of the screen. I have seen this before, so I select stand by, then restarting it. First it seems alright, but soon I recognize that I can operate the menu only with the keyboard, not with the Beo 4.

I go through some procedures, including disonnecting the BM 1 from the mains 2 times. After that it´s working and I can put it on and off, selecting the menu points as I choose.

I´m again a happy owner of a BM 1 !!!!

I really thank you for your support, Beomotion. I owe you more than one beer (beverage can of course be selected as preferred ). Great forum. Saying this, I recognize that I have to renew my gold membership to support it further.

Also, such successful work requires a reward for my wife (for being patient with me) and of course for me (for saving at least € 150,00):

Cheers and kind regards,

Rolf

 

Great, thanks for the documentation and the pictures.
I'm glad that the new battery did the trick for you. :-)

Regarding the red dot:
If I remember right this only shows up if it was not activated trough ML after a reboot.
So e.g. you activated your BV10 on the PC source and then rebooted the BM1 manually.
When the boot finished it will not "know" if everything is correct on the ML side and show the red dot.
Simply pressing MENU or the source again on your remote should immediately make the red dot to disappear. 

 

BR,
BeoMotion. 

O. K., thank you, I'll try this, if it happens again.

Kind regards,

Rolf