Beoplay V1 not turning on

49 replies
JA
Offline
jacek1313
Bronze
Posted May 13, 2024 at 00:09 GMT
#1664490
Hello, in my case the electrolyte from the damaged supercapacitor damaged the PCB paths that ran under it. I could barely solder them.
One of them is the signal from the IR module to the FEP IC300 processor.
MA
Offline
Madskp
Gold
Posted May 13, 2024 at 05:23 GMT
#1664491
On jacek1313 said
Hello, in my case the electrolyte from the damaged supercapacitor damaged the PCB paths that ran under it. I could barely solder them. One of them is the signal from the IR module to the FEP IC300 processor.
Thanks for chiming in with this very relevant info. This info suddenly makes it very clear why a leaking backup capacitor can make the IR function of the TV not work. Also based on the corrosion we have seen on the pictures of the super capacitor earlier in this thread it sounds very belivable that this could leak down on the PCB. Would you happen to have any pictures of the damage and/or your repair of the PCB?

Location: Denmark

JA
Offline
jacek1313
Bronze
Posted May 13, 2024 at 10:24 GMT
#1664496
I don't have any photos. I cleaned the PCB under the capacitor to bare copper, soldered the paths with thin wires and covered them with PVB varnish.
MA
Offline
Madskp
Gold
Posted May 13, 2024 at 15:14 GMT
#1664500
On jacek1313 said
I don’t have any photos. I cleaned the PCB under the capacitor to bare copper, soldered the paths with thin wires and covered them with PVB varnish.
Thanks for clarifying. And great that  there might be a relativly easy fix (depending on ones skills of trace repair). Maybe by studying the PCB layout it is possible to find some spots that could be connected by a wire instead of the PCB repair. But this new info tells me that it might be easier to replace the super capacitor before it leaks to prevent PCB damage.  

Location: Denmark

JA
Offline
jacek1313
Bronze
Posted May 13, 2024 at 15:59 GMT
Edited May 13, 2024 at 15:59 GMT
#1664502
BeoSystem 4 boards already use a 3300uF capacitor.

MA
Offline
Madskp
Gold
Posted May 13, 2024 at 18:05 GMT
#1664503
On jacek1313 said
BeoSystem 4 boards already use a 3300uF capacitor.
Just to be sure, was this mounted by you or do you think it was mounted from the factory? I am not sure how the 3300uF capacitor can replace a 0.22F super capacitor, but maybe someone can enlighten me?

Location: Denmark

JA
Offline
jacek1313
Bronze
Posted May 13, 2024 at 23:13 GMT
Edited May 13, 2024 at 23:14 GMT
#1664506
This is the original capacitor from Beosystem 4.
JA
Offline
jacek1313
Bronze
Posted May 13, 2024 at 23:21 GMT
#1664507
These are photos from Avant 75.

MA
Offline
Madskp
Gold
Posted May 14, 2024 at 08:16 GMT
#1664509
Ok very interesting that both the Avant and the Beosystem 4 has a 3300uF electrolytic capacitor instead of the 0.22F super capacitor.

I can see that Beoplay V1 is from 2012, Beosystem 4 from 2013 and Beovision Avant from 2014, so it makes sense that a component is changed in newer product lines. Wheether it is because the super capacitor was causing trouble already at that time or if it was just a cost cutting measure is a good question.

But thanks for the pictures

 

Location: Denmark

MA
Offline
Madskp
Gold
Posted May 15, 2024 at 19:39 GMT
#1664550
Given that we might have the solution for this issue I took the plunge and bought a relativly cheap V1 announced as non working with the symptom not reacting to the remote, and the green dioade ligtning up when connected to power.

Fantastic enough when I got this home and connected it to power and my home network via the ethernet connection I was able to find it with the B&O app, turn it on with picture, and controlling everything with the app. No reaction to remote control though as expected.

Location: Denmark

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