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An easy fix today – replacing a couple of missing screws in Beo4s; the four tiny ones that hold the overall remote together. I found the size in the service manual (M2.2×4) and ordered on eBay. I couldn’t find a UK supplier (size M2.2 seems rare) but these came from China and fit well.
https://www.ebay.co.uk/itm/186149792663 (Choose ‘M2.2x4mm’ from the drop down menu)
I ‘won’ a spares-or-repair BeoSound 1 (my second!) yesterday on eBay, and collected it to avoid the risk of damage in the post. The listing stated that the CD player wasn’t working, so I was quite looking forward to stripping it down and attempting a repair.
Anyway I plugged it in and tested – sure enough any CD would start to spin and then stop/eject. I gave the lens a little clean and tried again but there was no difference. Out of interest I then went to Service Mode and it showed CD module errors: OF6 and OF10. I then tried a couple of the CD tests – just the first two from the list below (focus and then turntable on/off):
I then took it out of Service Mode and tried the CD again and it worked flawlessly! I can only assume that the focus was stuck and the Service Mode tests got it moving again. I have tried several CDs including a couple that won’t play in my other BS1, and all is well. Strangely I can’t help being disappointed that it wasn’t more of a challenge to fix!
The only other fault was that the aerial protruded about 5mm when in the down position. I realised that it just needed a few clockwise turns to screw it down fully into the mechanism.
Here it is in position in the lounge after further cleaning:
This is not something that I am currently working on, but I have made an interesting (to me!) observation during my recent tests using iPhone inputs to Beolink Converter 1611/BL3500.
Like many legacy B&O enthusiasts, I have amassed a number of 3.5mm to 5 pin (or 7 pin) DIN connectors, useful for connecting such devices as iPhones or Airport Express to B&O DIN aux sockets. Typical connector shown below:
In testing, I noticed that two of my four connection leads have the L&R channels reversed!
In the 3.5mm ‘headphone’ plug, the tip is ‘left’, the ring is ‘right’ and the sleeve is ‘ground’. For a B&O DIN input, left is pin 3, right is pin 5 and ground is pin 2 – with the pins numbered as shown below (solder side of 7-pin plug shown):
Pins 3 and 5 are incorrectly reversed in two of my leads, including the one in the photo above.
EDIT: For clarity, here’s one of the late Peter Pan’s excellent diagrams, where ‘venstre’ is ‘left’ and ‘højre’ is ‘right’:
Obviously you can check with a multimeter, or just connect up a phone and adjust the balance. On the iPhone the balance control is strangely hidden under Settings > Accessibility > Audio & Visual, as shown below:
I hope this is useful!
Working on the first iteration of a printable BeoLab 4000 upright / angled table stand. This is an eye-balled clone right now and will have the opportunity to fit-test tomorrow!
Not now…now but I need to get on and finish my Beolab CXX’s (BeoVox CX100s with BL7.1 innards)
Having seen quite a few ‘spares or repair’ BeoCom 2s on UK eBay I thought I’d dip my toe in the water and experiment with fixing one.
It arrived yesterday, and when trying to ‘power up’ the screen would just show some random lines and then shut down. The charging base was showing a fluctuating voltage under no load, alternating between 4 and 6V, so I stripped that down (damaging it in the process, but I now think I could dismantle another without damage, so lesson learnt!). I also had to re-terminate the RJ45 connection into the PSU. Anyway, the charging pins are now showing a steady-ish 5.6V.
I then stripped the handset down – very tricky indeed but helped slightly by a blurry YouTube video (4 hours long in 4 parts – I didn’t watch it all!). Once in pieces I tried a trick that often works with a BeoCom 6000 – I simply disconnected and reconnected the LCD screen – in the BC2 this is a little ribbon connector. Once the battery was then re-charged the phone burst into life, so I reconnected the antenna (blue wire below) and managed to connect to my PSTN base without difficulty. All the functions (phonebook, dialling, answering etc) seem to work (albeit with earpiece and IR remote transmitters disconnected).
Here’s a picture of it working in pieces.
As you can possibly see, the little ‘track point’ (below the C and A-V buttons) is broken so I want to have a go at fixing that before re-assembly and more testing. I don’t think my wife will be happy to use a watch screwdriver to move the pointer when scrolling between menus.
If anyone else wants to give dismantling a go I am happy to help with advice, and maybe some close up photos of the parts that seem to get stuck in the slots on the inside of the casing. I will say that it is very difficult to accomplish without damage, but I purchased the handset and charger for less that £20 so I was happy to take a few risks.
Anyway, must crack on with this now as I have a third BeoSound 1 arriving later in the week – with faulty CD apparently … 🤔
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