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The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential

p.kaczmarek2 1350 12
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  • The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    I'd like to invite you to a brief analysis of another piece of television equipment. This time I received a slightly newer, but again decomposed device. Ariva T75 without power supply and remote control - this decoder has already been shown on our forum . From the outside, the whole thing appears quite minimalist, but what else besides HDMI does a typical user need?
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    Virtually no one uses such USB ports for storage devices in my area. Time to look inside - the screws are under the feet:
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    The PCB is one - the power supply is external. I was interested in this footprint of some module on the bottom, anyone know what it is from?
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    The PCB designation is HMT22301T1-D 20210425 Four year old hardware. Apart from this you can already see the standard sections:
    - inverters (voltages for memory and processor)
    - processor and next to it the Flash memory
    - display, buttons and their controller, probably with SPI or I2C interface
    - RF tuner
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    In the power section I see traces of an option with a Micro USB connector. Interesting that there is no reverse polarity protection diode, in older equipment I sometimes see it.
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    With the display it is fairly typical. The controller is an FD650B. From what I recall it is the same as the HD2015, so I have already discussed it:
    We are running the HD2015 display/button controller after reverse engineering, comparison with TM1637itd .
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential
    Next to it is more interesting - an AK801AE-S1 DN2306-104 with an antenna. It looks like an RF circuit. I haven't seen this one before.
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    I didn't have to look long for the explanation to this puzzle - it's a Bluetooth chip:
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    Next we have the aforementioned Flash memory, here as much as 4MB. This could come in handy and after scrapping the tuner:
    Additional Flash memory for measurements for free? Communication protocol, write, read, erase .
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    Next up is an element I often see in tuners like this, but it always puzzles me - if we have step down converters, why the extra 1.8V LDO AMS1117?
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    A view of the board - who recognises the CON7 connector? You can also see a potential three-pin connector on the UART in the background.
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    That CON7 looks like an Ethernet connector to me, those LEDs give that away too, and U17 looks like a signal transformer.
    HDMI is only connected to the CPU via the components marked UH - probably some sort of filters.
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    There is one interesting spot left:
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    Here, in turn, was probably meant to be a WiFi module - probably like the one in my colleague's topic:
    Interior and quick repair of the LTC LXHD203 DVB-T2 decoder .
    The signal reception is implemented here on, as far as I can see, an M88TC68000:
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    Finally, I tried tapping the UART, but the device is silent:
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    I also dumped the device memory using the CH341 programmer:
    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential .
    Mainboard of the Ferguson Ariva T75 DVB-T2 set-top box with electronic components and a slot for a WiFi module.
    I found interesting messages in my memory - for example "Error cannot boot from media", or "com_bootloader". The firmware was compiled on 21 January 2021.
    A copy of the firmware:
    https://github.com/openshwprojects/FlashDumps/commit/7fe724b994f5305930d48bb1606fd2d22eec8c30
    Feel free to download and experiment - who will find more information in this dump?

    In summary , this was slightly newer hardware than I usually show. Again, it came to me without a remote control or power supply, so I don't know what I'm going to do with it. The display from inside would be easy to run with an Arduino or similar microcontroller, and the memory could be useful for DIY too. Of the unusual circuits inside, there was a Bluetooth transceiver and a place for a WiFi module - I didn't see this in older models. I still tried to pick up some UART communication from the board shown, but the port was unfortunately silent. I may yet return to this device.

    PS: Device specification from the topic:
    Mainboard of the Ferguson Ariva T75 digital TV receiver with the case removed, showing electronic components and connectors. .

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    About Author
    p.kaczmarek2
    Moderator Smart Home  
    Offline 
    p.kaczmarek2 wrote 12274 posts with rating 10181, helped 582 times. Been with us since 2014 year.
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  • #2 21608140
    ArturAVS
    Moderator  
    p.kaczmarek2 wrote:
    Virtually no one uses such USB ports for storage devices in my environment.
    .
    And what is the problem with them? Typical USB.
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  • #3 21608224
    p.kaczmarek2
    Moderator Smart Home  
    What I meant by this passage was that in my environment practically no one uses these USB ports on TV equipment, plugs in memory sticks there, etc., plays photos, records programmes (see the possibilities from the last picture in the topic).

    It's just a loose observation that nowadays equipment can do a lot, and the typical user I meet is not interested in it, and when I go to help someone because something doesn't work, it often turns out that programmes have been deleted, or the source switched, or the aerial has come loose....
    Helpful post? Buy me a coffee.
  • #4 21608370
    szymon122
    Level 38  
    p.kaczmarek2 wrote:
    The signal reception is implemented here on, as far as I can see, an M88TC68000:
    .
    Unfortunately the internet hasn't heard of this circuit, but maybe some of you have an idea what the output signal of such a circuit is? The main CPU does the HDMI onwards, but there you can only see 6 signals, one probably clock (goes around the quartz in the middle) and one differential bus.
  • #5 21608373
    p.kaczmarek2
    Moderator Smart Home  
    Some traces of it can be found in a search engine, but no specifics, at least not yet.

    The interior of the DVB-T2 Ferguson Ariva T75 receiver, DIY potential
    Here it is:
    https://www.montage-lz.com/index.php/Index/Product/productInfo?product_id=14
    Quote:
    .
    A hybrid tuner for cable and terrestrial TV receptions, the M88TC6800 is fully compliant with DVB-C, DVB-T/T2, DTMB, ATSC & ISDB-T digital TV standards.
    .
    Quote:
    .
    Wide RF frequency range
    6 MHz, 7 MHz or 8 MHz bandwidth
    Programmable IF output
    On-chip VCO with AFC
    16 MHz - 27 MHz crystal oscillator with clock-out function
    High accuracy RSSI
    Integrated voltage regulators
    .
    Here someone wrote about it : https://reprapy.pl/viewtopic.php?t=6980 I think it was @@GUTEK@'s colleague
    Helpful post? Buy me a coffee.
  • #6 21608409
    1st
    Level 23  
    A footprint on a square scanner, likely a smartcard reader. .

    This footprint is probably for the smardcard reader


    A footprint on a transparent surface, likely illustrating a smartcard reader.
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  • #7 21609029
    cranky
    Level 28  
    p.kaczmarek2 wrote:
    in my environment virtually no one uses these USB ports on TV equipment,

    when I go to someone to help because something does not work, it often turns out that the programs have been deleted, or the source has been switched, or the antenna has become loose ...
    .
    On this tuner, programming a recording triggers a TV switch on via HDMI, so it's also unlikely anyone would set up a programme recording at 2am with the TV and sound on.
    What sets it apart from other tuners is 2xUSB, so you can connect WIFI and a drive at the same time (which nobody does).
    The tuner could have been a hit thanks to bluetooth giving you the possibility to use your smartphone as a remote control or to conveniently set the programme list. But there was not enough money to write the programme.
  • #8 21609038
    James596
    Level 28  
    The other thing is that DVB-T2 decoders are going into oblivion because they are needed less and less.
    TVs have had the modern DVB-T standard since about 2016. They're almost 10 years old now, so instead of combining with a decoder and two remotes, people probably prefer to buy some second-hand t.v. for a pittance, or a new one of some not-so-reputable brand - they cost relatively little these days.
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  • #9 21609179
    brofran
    Level 41  
    James596 wrote:
    that DVB-T2 decoders are going into oblivion
    Not always. I have an old Panasonic plasma ( picture as in OLED ), without a decoder the use of terrestrial TV would be impossible. Also for the " grandparents " with not exorbitant requirements decoder is OK. Young people would probably throw away my equipment immediately for disposal -:) .
  • #10 21609286
    cranky
    Level 28  
    James596 wrote:
    Another issue is that DVB-T2 decoders are going into oblivion because they are needed less and less.
    .
    Not only that. The tuner after 2 years self-destructs (in this arriva the power supply died, if it is not there, then in yours too, in K&M in both copies the capacitors on the power supply decided to fertilise the board with oil, in one during the warranty period the IR diode died). No normal person would repair a tuner for 80 pln. No normal person will buy a new tuner every 2 years. Everyone will buy a new TV and dock the planet.
  • #11 21609457
    kris8888
    Level 39  
    James596 wrote:
    Another issue is that DVB-T2 decoders are going into oblivion, because they are needed less and less.
    .
    Not necessarily. I have a large 60" Sony LED TV from 2014, completely functional and with very good picture quality. It only has a DVBT tuner on board so I once bought a Wiwa DVBT-2 decoder for it, in the form of a stick hidden on the back of the TV, I control the whole thing with a single remote control via HDMI-CEC. The decoder is powered from the TV's USB socket, so there is no problem with the decoder's power supply and its potential failure.
    If this decoder fails (which I doubt), I will definitely buy another one of the same or similar. So far, knock on wood, it doesn't look like the TV is going to fail.
    Sometimes I drive around hotels or guest houses and I see that many of them still use old LCD TVs with an added DVBT-2 decoder.
  • #12 21610020
    cranky
    Level 28  
    kris8888 wrote:
    Not necessarily. I have a large 60" Sony LED TV from 2014, completely working and with very good picture quality. It only has a DVBT tuner on board so I once bought a Wiwa DVBT-2 decoder for it, in the form of a stick hidden on the back of the TV, I control the whole thing with a single remote control via HDMI-CEC
    .
    It is the Sony TVs that "handle" the CEC control well. Others very differently. And out of a dozen different tuner/TV combinations, maybe 2 worked well.
    Sometimes the tuner will turn on but not off the TV, sometimes turning off the TV does not turn off the tuner....
    The chance for this Ferguson with bluetooth was, among other things, to write a software that could upload a list of channels from a mobile phone - an invaluable thing in hotel TVs. But they squandered it. Besides, the first versions of Arriva's software were such that all tuners within bluetooth range responded to one remote control - a massacre for the hotel.
  • #13 21614920
    kris8888
    Level 39  
    cranky wrote:
    Sometimes the tuner will turn on but not off the TV, sometimes turning off the TV does not turn off the tuner...
    .
    I have to correct one thing here, however, I am not using the CEC control between this Wiwa H.265 mini set-top box and the TV only using the fact that the remote control from the Wiwa has the ability to "copy" and assign additional keys to several functions from another remote, in this case from the original Sony remote. I only copied the volume control, source selection and TV on/off. This is enough for me and works perfectly. I don't have to switch the decoder itself on and off because it is powered from the TV's USB (power on the USB appears and disappears when the TV is switched on/off).

    This solution has another advantage, the remote control from the Wiwa is of very good quality, the buttons work reliably and with an extra click, in my opinion much better than the original Sony.

    On the other hand, I also use the CEC control, but this is already for the additional android player Xiomi Mi Stick. I control it with the original Sony remote this time. This also works perfectly, the navigation keys and not only from the Sony, easily navigate the android menu from the Xiomi player. Of course, I also power this Xiomi from another USB socket on the TV, surprisingly enough it can handle the power, so there is no need for another external power supply. This way, however, I have to keep two remote controls, from the Wiwa and from the Sony, but it is always two and not three :-) .
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Topic summary

The discussion analyzes the interior and DIY potential of the Ferguson Ariva T75 DVB-T2 receiver, highlighting its minimalist external design with HDMI and dual USB ports. The USB ports are rarely used locally for storage or recording functions. Internally, the device features a single PCB with an external power supply, and a footprint likely intended for a smartcard reader. The main CPU handles HDMI output with limited visible signals, including a clock and differential bus. The tuner supports programming recordings that can trigger TV power via HDMI-CEC, but practical use is limited. The device includes Bluetooth capability intended for smartphone remote control and channel list management, though software support was insufficient. DVB-T2 decoders like the Ariva T75 face declining demand due to integrated DVB-T tuners in modern TVs and the availability of inexpensive second-hand TVs. Common failures include power supply and tuner degradation after about two years, making repairs uneconomical. Alternative solutions include compact DVB-T2 sticks powered via TV USB ports, controlled by remotes with programmable keys or HDMI-CEC, as seen in setups with Wiwa and Sony TVs. However, CEC implementation varies across brands, often causing inconsistent power control between tuner and TV. The Ariva T75’s potential for hotel use with Bluetooth channel list upload was undermined by early software issues causing interference among multiple tuners.
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