Hi gert

nickel metal hybride batteries, they are NimH.  Some people use these with good results. I have several BL7000 and I used Nimh as well and after 3 moths or so they stopped charging. On the others I use Nicad (these types were originally used by B&O) and these work best for me. Pay attention by wiring those 5 batteries; if you short circuit them they generate heat. 

I have one BL7000 still in pieces; was changing the backlight foil but I do not manage to put it back together. The rubber strips for the contact with the lcd slips away every time when placing it into  the black plastic housing and then on the pcb. The result is that not all lines are presented the way it should.  It is a pity because the difrence is like night and day the backlight is like new and not as decade when they are older.

Verry frustrating. If I found a good way, then the life of the BL7000 could be extend for a long period of time. Most of the other problems like "no contact" recap changing the backup battery etc etc and are resolved here by many members here on BW.  

Leslie wrote:

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...

Do you use all 8 of them? 

GERTAP wrote:

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.

 

yes the 7000 does have a belt! A 1mm(?) small round belt drives the gears that push the rack. @OP if the motor (does it go noticably faster one way than the other?) is moving then try cleaning the belt to see if that makes any difference! But do be careful as above this unit is not for the faint of heart!

I am currently trying to draw a circuit diagram of the main board controlling battery / backlight / motor etc.. in the spare moments I have, but running out of time lol!

I have a BL7000 that works on its charger - the motor works, the lights too.

It quickly loses its charge, so i assume it is the battery that needs replacing.

In reality, I am not going to do this, so does anyone here have a guide for its value as is , and is ebay the best place to sell an item like this ?

It is in good condition - used but no major dints or dings.

Hubbe wrote:

Leslie wrote:

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...

Do you use all 8 of them? 

No, collector virus😳 Why?👍

Step1 wrote:

yes the 7000 does have a belt! A 1mm(?) small round belt drives the gears that push the rack

Thanks Olly, I was quite sure I saw a tiny belt inside the BL7000. Will check later this evening.

Leslie wrote:

No, collector virus😳 Why?👍

Just curious, I own one myself. A little hard to imagine that I would have 8 pieces in my possession that's all. I could possibly think of buying another for my Beocenter 9500 sometime in the future. Now that I know you have eight pieces in your hands ....

GERTAP wrote:

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.

Found a

Hi,

You are right og course, the transmission from motor to the little actuator rod are mede by i little belt, six monts since i have had my BL 7000 dissassembled and did not remember this.

If this belt becomes slippery you should not clean if, it should be swapped by a new one. when theese rubber belts are old and worn out , the rubber which they are made of, degenerates and does not work properly.

Belts in warius size are awailable as spareparts and could be found.

B&O does not support spares to BL no longer. 

BR GERT