Electrical Block Diagram; Main Board - Dell E178FPC Service Manual

17" LCD Color Monitor

5.2 Electrical Block Diagram

5.2.1 Main Board

XGA/SXGA
B3
+5V
PC5V
VCC3.3
3.INPUT
VCC3.3 +5V VCC1.8 PC5V
RIN
GNDR
GIN
GNDG
SOG
+5V BIN
GNDB
HSY NC
VSY NC
DDCA_SDA
PC5V DDCA_SCL
DET_VGA
DDC_WP
VCC3.3
B2
on_BACKLIGHT
on_Panel
PC5V VCTRL
VCC1.8
+5V Adj_BACKLIGHT
VCC3.3
VLCD
2.POWER
B4
RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSY NC
VSY NC
DDCA_SDA
DDCA_SCL
DET_VGA
DDC_WP
on_BACKLIGHT
on_Panel
VCTRL
Adj_BACKLIGHT
VLCD
4.SCALER
25
Dell E178FPC
LVDS OUTPUT
VCC1.8 VCC3.3 +5V
VCC1.8
Vcc3.3
+5V
B5
A[0..9]
A[0..9] A[0..9]
B[0..9]
B[0..9] B[0..9]
VLCD
5.PANEL INTERFACE
VLCD