You need to give a lot more information before anyone can help with this one, i.e.

What else have you connected to the BV5 and to which inputs, what speakers (if any) have you connected, which remote are you trying to use, can you access the menu options etc etc.

Dave.

The remote display is damaged, so I don't know if it's transmitting correctly when I press the menu, but nothing displays.  There is no menu.  The remote does transmit the power on signal though.  I connected the output of a secondary tv to the scart slots in the back.  Speakers?... well first of all let's get a picture...................

OK, so you have a damaged remote (presumably a BEO4?

If you look at the transmitting end of the remote through a digital camera (camera on a smartphone for example), if you press 'MENU' on the remote, do the IR lights flash?  Just because one button works on the remote doesn't mean the others work.  Ideally we need to get the menu up so we can check the connection assignations of the sockets.

Dave.

Yes the IR lights do flash.

Good, at least the remote works.

Have you only just bought this BV5 or has it previously worked and now doesn't?

Dave.

I bought it recently.  The seller just told me it doesn't turn on.  I tried pressing the TV+DTV also without a reaction.

What is the selection button next to the power switch on the display itself?  

9hundred wrote:

What is the selection button next to the power switch on the display itself?

Now I'm confused.  There aren't any buttons on the TV.  You do have this TV don't you:

Yes the Beovision 5 as in the picture.  I removed the frame and lower panel to access the internals.  The display is a Panasonic Plasma.