BV12-65 dark grey screen

32 replies

Woken up this morning to turn on my BV12-65 to find I can see nothing but a dark grey picture (or complete lack of picture).

Bizarrely I can here the sound of the TV, so the BS3 is working. Tried switching to the Apple TV, no picture there either.

Worse, I can't even see the TV menus, so can't admin from the remote or anything. Screen just appears utterly broken?

Any ideas?

moxxey wrote:

Woken up this morning to turn on my BV12-65 to find I can see nothing but a dark grey picture (or complete lack of picture).

Bizarrely I can here the sound of the TV, so the BS3 is working. Tried switching to the Apple TV, no picture there either.

Worse, I can't even see the TV menus, so can't admin from the remote or anything. Screen just appears utterly broken?

Any ideas?

Unplug the actual screen from the power.

Give it a few minutes, plug back in.

Very occasionally this has happened- the screen didn’t go into standby the previous night properly.

Let me know how you get on

Sandyb wrote:

Very occasionally this has happened- the screen didn’t go into standby the previous night properly.

Sadly no difference Sandy. Turned the entire TV off (mains power) for 10 minutes! Still an all-black screen. I can hear the audio though.

The worry is, I don't see the TV menus either. You should see those?

Plug the BeoSystem 3 or 4 into a TV and test it?  At least that isolates the issue to the panel.

Does it 'glow' as if it's showing a blank screen (room needs to be dark)?  If so, it's at least powering up...

9 LEE wrote:

Plug the BeoSystem 3 or 4 into a TV and test it?  At least that isolates the issue to the panel.

Yes it does. I have a BV11-46 in the other room, powered by the same BeoSystem 3, and it works fine (shows a picture and so on). Don't forget though, the BV12-65 won't show a picture from the Apple TV either, so that made me think it's the panel.

9 LEE wrote:

Does it 'glow' as if it's showing a blank screen (room needs to be dark)?  If so, it's at least powering up...

Sort of glows, yes. When I first turned it on at 7am this morning, in a much darker room, the panel looked mid-grey. Now it looks black.

I've turned the power off, unplugged the power cable on the BV12-65, removed the display cable and reconnected, nothing. I can hear audio, but no picture at all. No curtains either.

So strange. Was only watching TV last night, woke up this morning and the panel looks 'dead'.

Hi Moxxey

It could be one of five things. I can’t recall but does the PDP make a clicking noise normally when it switches on the you hear the fans kick in? The RS232 cable communication could have failed, this switches on/off the panel. I would call Paul Davey the certified B&O service agent, he’s based near Bristol and would be able to identify the real fault. He should have a NN remote to be able to switch on/off the panel without needing a BS3, there’s also a sw tool that bypasses the BS3 via a laptop.

When you power down the panel please leave it for 5 minutes to allow it to discharge fully.

Good luck.

Stuart

w5bno123 wrote:
Hi Moxxey

It could be one of five things. I can’t recall but does the PDP make a clicking noise normally when it switches on the you hear the fans kick in?

Sadly, almost no noticeable change on startup. No additional noises or fans. It starts up, speakers kick in as usual (ie. you can hear those 'click' in) and then, no curtain. It's almost as if that part has failed. I can hear TV (or Apple TV), but can't see anything.

Wondered if it could be the display cable and worth replacing this?

w5bno123 wrote:

The RS232 cable communication could have failed, this switches on/off the panel. I would call Paul Davey the certified B&O service agent

Thanks, I'll see if I can Google search for him? I can find him on LinkedIn. Not close though - Exeter! I'm in Bath.

w5bno123 wrote:

When you power down the panel please leave it for 5 minutes to allow it to discharge fully.

I tried this. I left it off for a good 15 minutes and made no difference.

 

There could be a fault on the control PCB992 which connects the RS232 cable to BS3. I used to see this on our old BV4 65 so I’d use the service remote to kick start the screen and then it would behave again. Is your RS232 cable accessible? Send me an email to ealing@bang-olufsen.co.uk and I will forward you Paul’s details. In fact Dave Clarke in Southampton is closer.

w5bno123 wrote:
There could be a fault on the control PCB992 which connects the RS232 cable to BS3. I used to see this on our old BV4 65 so I’d use the service remote to kick start the screen and then it would behave again. Is your RS232 cable accessible? Send me an email to ealing@bang-olufsen.co.uk and I will forward you Paul’s details. In fact Dave Clarke in Southampton is closer.

Thanks. Will do. I know Dave - he used to do the Bath B&O installation!

hi Mox

 

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