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Multicare have now added the BM4401 service manual to Beoworld, and it can be found at the foot of this page: https://beoworld.org/beomaster-4401/
Location: Warwickshire, UK
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Second post here, second para states that BC2 goes to A.Opt 0 if no speakers are connected – and post was made by quite an experienced poster/founder member.
https://archivedforum.beoworld.org/forums/t/13784.aspx
And a post here says it goes to A.OPT 6:
https://archivedforum2.beoworld.org/forums/p/12695/110803.aspx#110803
And here:
https://archivedforum2.beoworld.org/forums/p/49635/349244.aspx#349244
Location: Warwickshire, UK
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Can you get into the ‘Options’ menu and turn off the Tuners? Both analogue and DVB-HD if there.
Alternatively, try going to the Service menu* and find the option ‘RESET TO FACTORY SETTINGS’. Then try setup again.
* The Service Menu must be activated while the TV SETUP menu is displayed. From
this initial state, the Service Menu is activated in the following way: Beo4: the Service Menu is activated by pressing 0 0 GO within 3 s.Location: Warwickshire, UK
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After disabling my mesh network and just going with one router everything now works fine.
Good to hear – I hope it keeps working!
I meant to say, it could also be worth checking that your M3 is at the latest SW level – it should be at 6.5.57689.212515568 which was released on 22 October 2025. Full details of this and earlier versions are listed in the release notes here: https://update.bang-olufsen.com/products/b4ebddbebc6542ad87534e36f49d6a9a
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I found a copy of the service manual on the Kose trading site (hopefully attached below), but it should be on Beoworld also – I will check with Multicare.
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Hi Peter and welcome to Beoworld!
Have you tried changing the Line In detection level to ‘disabled’? It’s the setting above the delay setting.
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You have asked this question a few times on the forum so I thought I would have a look for the answer!
I could see from the circuit diagram in the service manual (available on Beoworld to Silver/Gold members) that it appears to be mounted on a separate board to the main PSU/Pre-Amp PCB (PCB2). I couldn’t find a diagram, so I did a search with Google AI and received this answer:
Transistor Details: The mute transistor designated as TR1 in the Beocenter 2300 is a 2SC4213 SMD transistor.
Part Number: The specific part number for the TR1 mute transistor is 2SC4213.
Type: It is an SMD (surface-mounted device) transistor.
Location: The P-L MUTE circuitry uses two identical 2SC4213 SMD transistors (TR1 and TR2) and two 8.2K ohm resistors, which are mounted on a small, vertical 4-pin sub-board on the main PCB.
Function: A failure in one or both of these transistors is a known cause for audio issues, such as a popping sound when changing sources or one channel being dead, as they control the power-link (P-L) muting function.
Replacement: Replacements for this specific transistor are available from various online electronics suppliers.
If you are experiencing a mute-related problem, it is recommended to test both TR1 and TR2 and their associated components, as either or both can be the source of the fault.I am guessing slightly but I think the small vertical PCB may well be the one that you can see the edge of (between the PL sockets and the 3 capacitors) in the PCB photo at this link: https://kosetrading.com/product/bang-olufsen-bo-beocenter-2300-dab-radio-type-7400-power-supply-part-pcb-2/?srsltid=AfmBOoqX2I4oeoPjxBq0Qiioegkc5mxQQZ2tYzAHYY9v579QJKmKr1Mo-
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Location: Warwickshire, UK
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I guess, I’d have to find a descreet place for an IR-Eye…
The Beo4 remotes are so powerful that the IR-eye can probably sit hidden behind another object and still work perfectly. The IR signal will most likely bounce off the walls to reach the sensor.
EDIT: And on the Beo4 with navi button you can adjust the IR power as follows:
Access the service menu by pressing Stby (red dot) + LIST at the same time, and then MENU + (joystick) at the same time. Press ^ several times until the display reads IRPWR: X. Again, 1 is the lowest and 7 is the max IR signal strength (default is 4)
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Hi Nils and welcome to Beoworld!
I posted some details back here that may help: https://forum.beoworld.org/forums/topic/hdmi-connection-for-beovision-7-mk1/#post-33294
And B&O even have some official advice here (but they don’t propose a solution for potential HDCP problems): https://support.bang-olufsen.com/hc/en-us/articles/14630866152081-How-do-I-connect-an-HDMI-device-to-a-Bang-Olufsen-TV-without-HDMI-input
You may not experience HDCP problems if your BV6-23 is HD-R.
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I am not sure whether it helps, but be aware that you can also use a panel from BC8000, 8500, 9000, 9300. However, you need to be aware that the control panel markings are different:
Beocenter 9000 panels (and those for the 9300 and 9500) have a “TIMER” indication on the control panel glass.
Beocenter 8000 panels (and those for the 8500) do not have this “TIMER” marking.
You may be best looking for a complete ‘spares or repair’ Beocenter – then you will have lots of other spares for future problems!
(I used Google AI to get this summary – but am 99% sure that it is correct based upon my previous research!)
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I am not sure why you can’t upload photos normally – I’ll send a message to Multicare.
I just dug out an old BL5000 keyboard (actually one that Beoworld member Leslie sent me many years ago) and prised out the metal circle with a guitar plectrum. It came out quite easily, but looks like it was originally glued in place:
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Just to add to the above, like MartinM I went for tantalum bead throughout – see my order below:
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For recap of the IR PCB, there is a guide from Leslie Nelwan at the Beoworld archive showing which caps there needs to be replaced.
https://archivedforum2.beoworld.org/forums/p/9016/89901.aspx
Look a little more than half way down.When I replaced the capacitors in one of my BL5000s several years ago I found Leslie’s post very useful, especially for the capacitor values. I also made use of the photos from a 2010 post by ‘MartinM’ here: https://archivedforum.beoworld.org/forums/t/35123.aspx
The photos are no longer attached, but I kept a copy – see below:
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Have you still got the original Beo4 (not the navi joystick version) and is there any difference in the behaviour of your system when using that?
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I must have been busy with something else because I totally missed this draw – many apologies for not being there in support!
Anyway, many congratulations to all the winners; I am very envious of the Beosound Stage (well done @miniac) as it’s one of the products that could tempt me away from the Beo4 and onto a newer remote or two.
And ‘Merry Christmas’ to all Beoworld Members – thank you for all your support and contributions over the past year! 🌲🧑🎄🎅🎁❄️🎄
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Hi Guy, I am having similar problems with my BeoCom 1 6000 phone. I have three of them and one lost base connection.
Thought it could be battery but still can’t connect with it. Tried all the suggestions I find on line and no solution. Not sure when B&O stopped
selling phones but would you know of BeoCom IT or help individual in New York City that could help? Thank you!
Early European BC6000s often developed an rf transceiver problem, where the only fix was replacement of the main PCB. I am not sure whether this problem extended to the US models.
If you have tried all the reset procedures mentioned earlier in the thread (including perhaps resetting the base unit) then it could be worth trying to find a B&O specialist who can look at it from a SW perspective, although it’s possibly hardware related. I don’t know of any NY specialists, but maybe an older established B&O dealer (if you can find one) could still have some Beocom test equipment in store. However, I am not sure that a fix would be cost effective, so you may be better off looking for a second hand replacement, making sure that it is a compatible US model by referring to the model and type numbers as mentioned in the table I posted earlier in the thread.
I hope that helps!
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Ah, I should have checked – you registered nearly 4 years ago, and may well have been on the old forum too!
Here’s another device that will carry out the same function: https://shop.oneremote.dk/shop/69116-powerlink-aux-adaptor/
Or you could look for a second-hand B&O Playmaker – they have auto-sense on the aux input: https://bangolufsenassistentgohe.blob.core.windows.net/manuals/SOUND_SYSTEMS/PLAYMAKER/UG_Playmaker_EU_US_current.pdf
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Hi and welcome to Beoworld!
The answer is ‘yes’ – the RCA line-in has auto-sense which will trigger the PL and Beolabs. You may well have to set up autosense (sensitivity etc) in the menu, accessible from most browsers or the B&O app. You will also have to set up whether the output should be fixed volume or controllable (via remote or B&O app).
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I just wanted to let you know that I tidied up the forum to reflect your change of username and have deleted the other thread with my erroneous response.
As I said in the deleted thread, your best bet may be to find a ‘spares and repair’ BC9500/8500 and move the parts across.
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Also have a look in this thread regarding the AV mini DIN connector and the official B&O scart adapter
@Madskp Your link didn’t show, but you may have meant this thread (V1 has the same input): https://forum.beoworld.org/forums/topic/beoplay-v1-connection-old-stuff/Location: Warwickshire, UK
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