Beolab 14 Sub – IC identification needed !

[Jonathan McCall]

Thanks – that’s interesting. Although I’m getting nothing.

Could be a dicky Powerlink cable, I’ll do a continuity test on it tomorrow.

Appreciate the help.

Jonny

[Jacob Terp Christensen]

Sounds like a good idea.

I will try and see if I can get mine working in the weekend.

[Jonathan McCall]

Good luck – interestingly, I found a green micro switch tucked away on the ICE board. Tried pressing it with power off and with power on, but no change. Could be that it needs to be held in for a few seconds ?

Just surmising of course, but there must be a reason for it.

[Jacob Terp Christensen]

I don’t think it should be necessary to press a button. The button might be needed for service.

[Jonathan McCall]

Are you sorted Jacob ? Hopefully you’ve got it all working again.

[Jacob Terp Christensen]

I soldered the new IC, but when installing the boards, I managed to rip off a bi-amp IC, so I am now waiting for a replacement for that. When installing the boards, they have to be forced down on each side of this plastic extrusion (pic 1). This means that the components on pic 2 are prone to being ripped off. Bad design…

Attachments:

You must be logged in to view attached files.

[Jonathan McCall]

Wonder if that’s the same on the 14 ? Must admit, I didn’t seem to have any mounting issues.

How far apart are the 14 and S8 in terms of design, componentry etc ?

[Jacob Terp Christensen]

My S8 is the earlier model, which should be identical to the 14’s. Do you have pictures of the mounting on yours? I believe they use the same ICEpower module and power supply.

[Jonathan McCall]

Will see if I can get some later.

[Jacob Terp Christensen]

Thanks! Did you get yours to work?

[Jacob Terp Christensen]

Just an update,

Got the other IC soldered, and the sub assembled. Will be testing it today or tomorrow. Hopefully it won’t explode, in which case, you wont hear from me again 😀

[Jonathan McCall]

Thanks for the update. My cable arrived from Steve along with helpful instructions on which of the 4 sockets to plug it in to. Turns out I was using all the wrong options.

Still doesn’t work.

Will hopefully be able to get some time on it at the weekend and see if that little green micro switch needs pressing.

Good luck !

[Jacob Terp Christensen]

Hey, did you get time to look at it? I finally got time to test mine, and as yours, I get absolutely nothing. It is completely dead, and I am wondering if a smd fuse might have blown on the power supply board.

[Jonathan McCall]

Hi Jacob – haven’t revisited I’m afraid, I was away at the weekend and had a ton of things on since. Did you try the green button ?

I’m afraid I wouldn’t know where to start, looking at the individual smd’s, even with a circuit diagram I’m a bit lost when it comes to testing the  various components.

Would obviously be very keen to see if you get any joy.

Cheers

Jonny

[Jacob Terp Christensen]

No, I haven’t tried the green button, and I don’t know what it is for. I’m not that interested in testing with live 230v on exposed capacitors, but it might be necessary to see where it goes wrong.

[Jonathan McCall]

Any joy Jacob ? Funnily enough there’s a post re and S8 not powering up. Looks like the capacitors could be an issue.

Cheers

Jonny

[Jacob Terp Christensen]

Sadly not, I haven’t looked into it yet. Can you link the post? Would be interesting to see if it is the same problem.

[Jonathan McCall]

Beolab 14/BeoPlay S8 – Amp not working

[Jacob Terp Christensen]

Thanks, I’ll watch the thread to see if any new info is shared. Although I do not get any hiss or anything, it might be of value.

[adyan]

Hello,

also try to repair a Beolab 14 Sub, sadly I´m not the fist who opened it…

after inspecting the mainboard I found that there is a component missing, maybe someone can point me in the right direction what is missing there. Also would be nice to have a picture from this section.

 

There is also a problem with the NTC, see here:

https://forum.beoworld.org/forums/topic/beolab-14-subwoofer-repair/

 

Thanks in advance, Regards

Attachments:

You must be logged in to view attached files.

[Author]

Posts