System Circuitry Description - ViewSonic VE150m Service Manual

6.2 System Circuitry Description

BLOCK A.
In reference to the system block diagram of the monitor's
circuitry shown on the previous page, the analog RGB inputs
are amplified and sent through an analog-to-digital converter (ADC)
to a digital signal processor (DSP) that generates digital RGB
signals for controlling LCA panel.
BLOCK B.
A second power supply converts a single 12V supply to the
various voltages needed to run the LCD panel and the inverter
driving the display's backlights.
BLOCK C.
SYNC SIGNAL PROCESSOR. This processor determines the
polarity of the horizontal and vertical sync signals, generates a
fixed-polarity synchronized clock signal and provides data for
use by the microprocessor in selecting circuit control parameters
from EEPROM tables.
ViewSonic Corporation
35
Confidential - - Do Not Copy VE150m/mb