This TNT / SAT receiver is available in several brands and models. It can be found at WISI with the OR07 HD model (the one I own ), at SERVIMAT with the Sirius HD or even at THOMSON with the THS804 or THS805 but in the case of these last 2 models, their presentation is somewhat different.
I use mine in a Motorhome and since it fits in a separate cabinet from the monitor, the IR remote control is more than necessary.
I already had this handy accessory on my previous demodulator, but it is not compatible with the one presented because the male Jack plug ( a 2.5mm model with 4 poles ... ) is different, and therefore the internal wiring differs also.
The supplier I selected does not supply this accessory ( email remained unanswered to this day ... ), I ordered it separately elsewhere on the Internet ...
It was sold to me as being compatible with the WISI OR07 HD as well as for the THOMSON THS804 / 805, but in reality this is not true. The wiring of the jack plug differs from that imposed by the socket integrated into the demodulator ...
Having no information from any of my 2 suppliers (...), I set to work and analyzed the operation of my device ...
The IR offset sensor can be easily removed using a hidden cruciform screw under the double-sided tape. Once the screw is removed, the small box opens to reveal the printed circuit ( Image 1 ).
Before reading the following, please note that I can in no way be held responsible for any damage that your equipment may suffer as a result of this type of manipulation.
In order to better understand the operation with this module, I opened my demodulator by removing the 4 cruciform screws ( no tamper-evident label on my device ... curious and unusual ... ) and with the oscilloscope I have been able to view the signals present on the jack, in particular the power supply ( + 3.3V ) as well as the digital information of the signal emitted by the remote control.
Image 2 shows the location of the Jack plug with its connection pins.
The Jack plug being molded, it is preferable to carry out the modification on the small printed circuit of the IR offset.
Picture 3 shows the modification made to the wiring of this small module, because I did not modify anything on the demodulator. It remains as at its origin.
The red wire ( supply + 3.3V ) and the yellow wire ( GND ) do not change, I only swapped the green wire with the blue wire, the latter not being used on my equipment.
It remains to replace the double-sided tape, and the operation is then complete.
With this small intervention, the IR remote control works perfectly well and I was able to find a functionality that is only of interest if the demodulator is hidden somewhere, whether at home, or as for me in my leisure vehicle.