Service manual

Circuit Description
1. Power supply (DC/DC Converter)
The AT1741 is 2-channel PWM switching regulator controllers that contains an
on-chip 2.5V reference, two error amplifier, an adjustable oscillator, two
dead-time comparators, under voltage lockout circuitry and 2 common-emitter
output. It is idea for step-up, step-down, and inverting converter.
4. Circuit Description
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ViewSonic Corporation Confidential
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Do Not Copy VA712-1_VA712b-1