Iiyama Vision Master 405, Руководство по обслуживанию

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(2) HORIZONTAL SIZE and DISTORTION CONTROL circuits
The variable B voltage control pulse synchronized with the horizontal sync signal is output from pin 14 of
IC301. The horizontal size control voltage and distortion control parabolic wave output from pin 5 are input
to pin 11 and then the output pulse of pin 14 controls the horizontal size and distortion as follows:
Q
H-size: The output duty of pin 14 is varied by the DC voltage input to pin 11.
R
Distortion: The parabolic wave (AC component) input to pin 11 is synthesized with the output pulse of
pin 14.
DC component ... H-size
AC component ... Distortion
IC301 pin 5 output
Pin 26:
H-sync signal input
Pin 18:
AFC pulse input
Pin 14:
Variable B control pulse output
Pin 17:
H-DRIVE pulse output
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