Hello everyone
I am very grateful for the help you have given me in this case, with which I have been fighting for more than a month, in a battle to the death.
Also thank you that thanks to it, I have learned what I never believed.
Your diagnosis is perfect.
I have checked with the oscilloscope the signals of the 8 bits of the TS and I have seen that in bit 1 (pin 27 of the tuner there is no signal).
The circuit of the board (external to the tuner), as one might suppose, had proven it many times. What I have also checked is the track inside the tuner continuity until you reach an array of 470 Ohms resistors, which apparently connect to the STV0910A. All right.
From there I have not been able to follow the circuit, because with the tuner welded on the board, it is not easy to work.
No shortcuts and with perfect continuity from the 470 Ohms internal resistor to the FT2232 without interruption.
When you start a circuit like this for the first time and it does not work, you have many doubts, errors in assembly, connections, software, PC, etc. then,through different tests and deductions and help through the forums, you are discarding possibilities, as in my case, I determine that the failure comes from the hardware and in this case, it is practically only the tuner, although not knowing the mechanics of operation, it is not easy to specify which is the part that does not work.
I'm waiting to receive another FTS4334 with which I hope the problem is solved.
The improvement seems to be remarkable with this new Minitioune and possibly ideal for the reception of the ISS, since until now, operating with the Tutioune 3200 had a delay from receiving the signal until synchronized (indicators in green, TS ready), it was incompatible with the ISS tracking speed.
With the Minitioune V2 (without seeing image), I observe that it is practically immediate from applying the signal until synchronizing.
Thanks to everyone and especially to Jean Pierre as the father of an excellent job.
73's
Magi
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