Sign in   |  Join   |  Help

Search

  • Re: BeoSound 5 without BeoMaster 5

    If you go one step further it should be easy enough re-using the internal ML / PL / power management board of the BM5. As far as I remember it's just connected via USB internally. In general the hardware aspect is not a problem here. That's simple enough. If you want to replace the BM5 it's mainly a question of software. Especially for the UI and ML if you want to continue using it. Attached a proof-of-concept written in python to read out the BS5 controls. Nothing special. It will plot
    Posted to Beomaster & Beosound 5 Forum (Forum) by BeoMotion on Mon, Dec 21 2020
  • BeoSound 5 without BeoMaster 5

    Hi all Beo enthusiasts, over the years and especially lately I was getting several personal messages about this old thread here from 2015 . I was talking about using the BS5 (still a nice piece of art) without the pretty dated BM5 whose motherboards are slowly failing now (mostly leaking capacitors which can be easily repaired btw) and of course it also does not support any modern streaming solutions. I have no clue where we might or might not end up with this thread. I just really dislike the possibility
    Posted to Beomaster & Beosound 5 Forum (Forum) by BeoMotion on Mon, Dec 21 2020
  • Re: Beo6 with no touch functionality.

    [quote user="manfy"] I strongly disagree with replacing - or even ordering - the chip unless you have experience in SMT soldering and the right equipment for it. On Mouser it says that this is a 4mm CSP package (chip scale package) and without underheat and a temperature-controlled hot air pencil I see little chance of successfully getting a new chip mounted. Don't even think of just yanking it with an off-the-shelf uncontrolled soldering iron! Replacing a 2-pin capacitor with a normal
    Posted to The Workbench (Forum) by BeoMotion on Tue, Jun 2 2020
  • Re: Beo6 with no touch functionality.

    The best way to start is just taking an oscilloscope and try to see if there is clock & data activity and a stable power supply. Due to the good availability of the chip the next step would be replacing it carefully. While dead ceramic caps are very unlikely one additional thing could be replacing the single aluminum one. Even there I think a fault is pretty unlikely. If that does not help chance are low breathing new life in the touchscreen. I can't help here further as I neither have a
    Posted to The Workbench (Forum) by BeoMotion on Tue, Jun 2 2020
  • Re: Beo6 with no touch functionality.

    [quote user="manfy"]No, that seems unlikely! The chip has only 13 sensor inputs, so at best you'd get a 6x7 matrix of touchscreen points and that's way too low for an acceptable touchscreen resolution. I'm quite sure that the AD7147 is the chip that provides the wheel functionality on the keypad. Just look at the "Typical Application Circuits" section at the end of the datasheet.[/quote] The number of cap sense inputs does not equal to the maximal possible touch points
    Posted to The Workbench (Forum) by BeoMotion on Mon, Jun 1 2020
  • Re: Beo6 with no touch functionality.

    [quote user="Weebyx"] It is this IC. https://www.analog.com/media/en/technical-documentation/data-sheets/AD7147.pdf /Weebyx [/quote] okay, thanks. Good to know. Luckily still available. So if that’s the common problem here it can be easily replaced. It would just need a little further investigation to find out if that’s the root cause or not. Other possibilities could be a broken flex cable or a damaged I2C port on the host processor.
    Posted to The Workbench (Forum) by BeoMotion on Sat, May 30 2020
  • Re: Beo6 with no touch functionality.

    Anybody knows which capacitive touch interface chip the Beo6 screen is using? Often those chips are directly located on the flex cable that connects to the digitizer. once you have the type you can try to find its data sheet and try to interface with it using an Arduino or whatever. Typically it’s just I2C along with reset, interrupt and power supply. if that’s not working it might be worth replacing the CPT chip which might got defective due to mechanical or electrical stress.
    Posted to The Workbench (Forum) by BeoMotion on Fri, May 29 2020
  • Re: Frage zu BEO IR-Eye Version -- Question about BEO IR-Eye version

    Looking like one of the newer IR eyes with an embedded MCU and the screw connectors marked with Rx/Tx instead of SDA/SCL. So the best bet here is that communication is UART instead of I2C. Without knowing the protocol it might be a lot harder than just directly interfacing with a port expander over I2C. Best way to get started is sniffing the communication with a logic analyzer while the IR eye is connected to a matching newer generation B&O device.
    Posted to General Discussion & Questions (Forum) by BeoMotion on Fri, May 29 2020
  • Re: Power Supply ML-Produkte mit ML/NL Converter

    Wie gesagt, ist im Schaltplan der Ouverture alles genau beschrieben und nicht mal eben so einfach gemacht. Möglich das es auch etwas einfacher über Spannungsreferenzen oder korrekt dimensioniere Spannungsteiler geht, rate hier aber von Experimenten ab.
    Posted to Deutsche BeoWorld (Forum) by BeoMotion on Wed, May 13 2020
  • Re: Power Supply ML-Produkte mit ML/NL Converter

    [quote user="moritz001"] Jedoch gelingt mir das nicht auf den genannten Pins. [/quote] Die beiden Datenpins müssen “versorgt” werden. Sonst kann da ohne Master nichts kommunizieren. +/- 0.25 V wenn ich mich recht erinnere (natürlich nicht direkt sonder mit Strombegrenzer z.B. über Widerstände. Ist bei manchen Geräten auch diskret aufgebaut und gut in deren Schaltplan zu sehen. Overture o.ä. Die Power Box oder irgendein Master ist da der einfachere
    Posted to Deutsche BeoWorld (Forum) by BeoMotion on Wed, May 13 2020
Page 1 of 38 (379 items) 1 2 3 4 5 Next > ... Last ยป | More Search Options
Beoworld Security Certificate

SSL