Service manual

through L5422 continues to flow through C2426 and C2421. The energy stored in the
line deflection coil is passed to C2425, and the energy of L5422 to C2426.
The resonance-frequencies of these two LC-circuits define the flyback time of the spot
from the right side of the picture tube to the left.
On average, no current flows through C2421 and thus the voltage across this capacitor
remains constant.
Figure: Line deflection part 2
Period t3 - t4:
As for the period t2 - t3, but now the current flows in the opposite direction, since the
voltage across C2425 and C2426 is higher than the voltage across C2433 and C2421.
Period t4 - t5:
The coils try to maintain the negative current and will charge the capacitors negative.
Because of this, D6422 and D6423 will conduct. The voltage is 100V across the
deflection coil and 41V across L5422. As both diodes conduct, we may consider the
voltage constant. A linear current flows with the same changing characteristics as in
period t1 - t2. The spot now moves from the extreme left to the center of the picture
tube. Before the current becomes zero, and the spot is located in the center of the
frame, TS7421 reverts into conductivity. First a short negative current will flow. Then the
cycle begins again.