THOMSON VP2750 Technical Manual page 53

AUTOMATIC 16/9 SWITCHING
Certain products in this video recorder series can record and play cassettes in 16/9 format.
To do this, the duty ratio of the recording and control pulses must be altered. The falling edge of
the control pulses is shifted by ±2.5% in alternation.
In Play Mode, the servo control/control circuit (IT001) detects this change, and enables Output
23.
This leads to the saturation of Transistor TGX352, and then a voltage of 6 V at 8 of the TV
SCART.
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