Toshiba CN27E90 Technical Training Manual page 68

2-4. V Linearity Characteristic Correction
2-4-1. S-character Correction
(Up-and Down-ward Extension Correction)
A parabola component developed across C306 is integrated
by R306 and C305, and the voltage is applied to pin 6 of
Q302 to perform S-character correction.
2-4-2. Up-and Down-ward Linearity Balance
A voltage developed at pin 2 of Q301 is divided with
resistors R307 and R303, and the voltage is applied to pin 6
of Q301 to improve the linearity balance characteristic.
Moreover, the S-character correction, up- and down-ward
balance correction, and M-character correction are also
performed through the bus control.
68