Main Board Diagram - Acer AL1721h Service Manual

MAIN BOARD DIAGRAM

VCC3.3V VAA2 VAA4
AT24C02
VCC2.5V VAA1 VAA3
(DDC)U104
DDC SCL/SDA
VGA R/G/B
VGA Input
PA 0~9
VGA Hsync/Vsync
AT24C02
PB 0~9
RXD/TXD
(DDC)U102
U203
Panel
HS/VS
GM5120
U601
DVI
Winbond
Signal
VLCD
EPR SDA/SCL
RGB
AT24C16
KEY Control
U602
16