Beolab 14 Sub - IC identification needed !

40 replies
JT
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Jacob Terp Christensen
Bronze
Posted January 24, 2025 at 09:49 GMT
#1668380
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 :D
JM
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Jonathan McCall
Bronze
Posted January 24, 2025 at 10:00 GMT
#1668381
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 !
JT
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Jacob Terp Christensen
Bronze
Posted January 28, 2025 at 19:52 GMT
#1668466
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.
JM
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Jonathan McCall
Bronze
Posted January 28, 2025 at 19:59 GMT
#1668467
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
JT
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Jacob Terp Christensen
Bronze
Posted January 28, 2025 at 20:03 GMT
#1668468
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.
JM
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Jonathan McCall
Bronze
Posted February 14, 2025 at 17:20 GMT
#1668822
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
JT
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Jacob Terp Christensen
Bronze
Posted February 14, 2025 at 17:29 GMT
#1668824
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.
JM
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Jonathan McCall
Bronze
Posted February 14, 2025 at 17:45 GMT
#1668825
https://forum.beoworld.org/forums/topic/beolab-14-beoplay-s8-amp-not-working/
JT
Offline
Jacob Terp Christensen
Bronze
Posted February 14, 2025 at 17:52 GMT
#1668826
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.
AD
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adyan
Bronze
Posted October 3, 2025 at 18:32 GMT
#1671358
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:

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