Service manual

• EW-corner,
• EW-trapezium,
• Horizontal parallelogram,
• Horizontal bow.
Beam Current Correction
The EHT-info at point 10 of the LOT is dependent on the value of the beam current and
the voltage divider R3450, R3451, and C2450. The EHT-info is fed to the HOP to trim
the contrast and to compensate for the changes in picture-width as a function of the
EHT-info, when the high-voltage is decreased.
The EHT-info is integrated via C2450 and sent to the gate of the E/W FET (TS7480) as
a DC-voltage to correct the EW-current.
Vertical (Frame) Deflection (Diagram A4)
Driving the Frame Output Stage
Figure: Frame deflection circuitry