La78040 Vertical Amplifier; Features - Daewoo DTX-21G2 Service Manual

4.3 LA78040 VERTICAL AMPLIFIER

The LA78040 are power circuit for use in 90° and 110° colour deflection systems for field
frequencies of 25 to 200Hz field frequencies, and for 4:3 and 16/9 picture tubes. The IC contains
a vertical deflection output circuit, operating as a high efficiency class G system. The full bridge
output circuit allows DC coupling of the deflection coil in combination with single positive supply
voltages.

4.3.1 FEATURES

§ Built-in pump-up circuti for low power dissipation
§ Vertical output circuit
§ Thermal protection circuit
1
Vin(-)
2
Vcc
3
Pump Up Out
-14V 4
LA78040
5
Vout
Vcc 6
Vin(+)
7
MGL867
CP-520V Service Manual
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