Kristel 1428-30k series, Руководство по обслуживанию

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6. H-SIZE CONTROL and PIN COMPENSATION
The control of picture width and side pincushion compensation is achieved through changing the source volt-
age of the horizontal deflection circuit. There’s need for some components to build a diode modulator. This
circuit consist of C620, L602, C611, D602, D610 and H-DY.
The parabolic wave is fed to the base of Q303 via double integrated circuit wich can generate a side pincush-
ion compensation wave. The H-width control voltage and parabolic wave are amplified by Q304 and Q306,
then they are fed to the diode modulator for controlling the source voltage of the horizontal deflection circuit.
pg.14
1428-30k series
ELECTRONIC WIDTH CONTROL / schematic.
to Horizontal YOKE
to L608
to L503
to C522 (+)
to L503
to Q805, Q806...
to IC601, D801..