Hej Gert

Fik du fixet din BL7000?  Jeg har en lignende hvor motoren kører ekstremt dårligt og ikke vil trække panelet op. Var det samme problem du havde, og hvordan fik du det fixet?

MVH

Jesper

Tco101@hotmail.com

Hej Gert

Fik du fixet din BL7000?  Jeg har en hvor motoren ikke kan trække panelet op, og tænkte på om det var samme problem du havde?  Og hvordan du fik det lavet?

MVH

Jesper

Tco101@hotmail.com

Can we have that in english?? it might help someone else out 🤒

Sure :-)

I´m searching for advice regarding BL7000 remote that can´t lift the panel up... Its trying, and even with new batteries it only rises a little (motor is trying and keeps running, and stops after 5 seconds) 

Anyone with a solution or same problem?

Regards

Jesper

Maybe Leslie (from Holland) can help out here, he is normally pretty quick in reply when it concerns BL7000.

Leslie ... ?

Sorry guys, can't help with this issue, I'm not an electronic expert! Maybe the belt has to be replaced (regarding Jespers problem)?

But does the 7000 remote has a belt running inside????

From my memory yes, but now I'm in doubt🤔

If not than I'm really getting old! It's been a while since I opened one of the 8 BL7000 I have...

Hi,

i wil try replying in english, if anyone wants danish reply please say so.

No the BL7000 does not have a belt drive, it has got a little electric motor which drives a littel actuator rod connected to the base unit.

If you are not a skilled technician, you should for shure NOT try to dissassemble the BL7000, its were complex wtht a lot af small springs popping out, wirees who needs to be soldered , ad taken of.

The battery is not connected vith connectors, its solderered to the PCB.

I have been talking to a Bang and Olufsen technician , and im told that this unit are repaired by swapping the modules, B&O had not made this pcb them selves its made by an external company, thats why no detailed diagrams are awailable of the pcb-s.. Thats a shame, they are not that complex and could be repaired if diagrams were awailable.

Now ,,,, mu unit had the same problem , the motor would not start, i tried taking the battery out, to reset the unit, no luck.

I spend severel ours mesuring with my oscilloscope on the transistors to se where the signal were lost, it seemed that the prossesor did not attuate the Push-pull output stage which can activata the motor i both directions , enabling it to drive up and down... so i actualy gave up.

I did in fact replace the little 3,3v lithium battery , it was almost discharged,,,, and you know what ???? the motot worked after the little back up battery were changed,  so the processer needed to be reset an make a restart. THEN THE MOTOR WORKED.

I had also had problems with connecting with my Beo 7000 radio, the solution was to change the capacitors in the reciever part at the pcb, this had been described were detailed in some other discussion on this site. i think a lot of the BL7000 has this problem, but swap the capacitors and it works again... this is Not the only place where B&O had uses cheap capacitors. Of course we have to remember this unit is in fact wery old and stil some og the best remote stuf ever made.

Problem no 3 i had, the umit are resetting it self all the time, swap the main batery. I have used nickel metal hybride batteries, this does not work , they are getting hot and are destroyey,  does anyone have a solution on this ?

BEST REGARDS GERT