You need a special mini jack to mini jack cabel from B&O, its not just a normal minijack cabel. Set the BL5 in L.opt 1.

Philip, please tell me the first three numbers from the serial on you speakers, it's found under the big disk.

Mine are too OLD!!! to be used with a synch cable... Again, incredible negligence by B&O...

Advertising them and supplying us with sync cables and connector, only to be unable to use them. Are your speakers "locking up" when you connect the cable?

I saw you mentioned "brand new"... If that's the case then I can't imagine you have the same problem as I have.

The first three digits are 213. They don't lock up when the sych cable is installed. They appear to work fine except the volume is unsychronized.

I have an approved synch cable so not sure what it could be.

any help would be welcome

Philip

the software seems to be 3.0 if that helps at all

Soundproof may be able to help you, did you have the right option setting? Either option 1 or 4.

The serial number seems fine, they apparently started working from something like 178.... Mine are pre that era 🙂

Make sure you have the L.OPT set to 1, since you are working with non-B&O.

A tip, if it still doesn't work. Before I got my sync-cable, I would run the speakers down all the way, and past that point, just to be certain both speakers were at absolutely lowest volume. Then, making sure that both speakers could "see" the remote, I would raise the volume click-by-click on the volume up, checking that both speakers were indicating they received each adjustment with a green flash. Raise the volume until you have a nice working volume, and store that level. You can now reset the speakers to that level by adding RESET to LIST and pressing RESET whenever you suspect they've drifted.

thanks for the tip of setting 'turn on volume'. Will help until I figure things out. 

I have set them to option 1. Hopefully it is something banal that I have not figured out.

Hi, I can confirm that the Synch cable is a cross-over stereo mini-jack (3.5mm TRS plug) cable, with tip and ring connections reversed.

To summarise, you should be able to use the synch function, as this was active from serial no. 17772145 and software level 2.5 and above (around April 2004).  If all else fails, you may wish to use the following alternative method (the only option available to those with older 'Lab 5's linked to non-B&O equipment); just set both speakers to maximum volume and then use the external (ie. source) volume control.

Best regards,

Steve.