I'm having a little difficulty fully understanding the YTO frequency control loop.
There is a pretune DAC which gets the Main Coil to the right general vicinity.? The fine tuning (including sweeping when in each sub band) must be via the FM coil on the YTO I presume?? I see there is an FM driver-looking output on the phase lock board, does this go directly to the YTO as well?? What part do the circuits on the source assembly play in this?
I'm trying to understand how the loop is closed and the exact mechanism of control of the YTO.
Peter
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On 3/18/2019 1:35 PM, pianovt via Groups.Io wrote:
I checked the YO drive on a couple of 8753ES (Opt 006). Both are very similar. The unit below has a alightly lower voltage at the start. The other one is right at 3.5V.
Vladan
