ViewSonic VX800-3 Service Manual - Page 36
L17kmw/l18hmw 05aaw Lcd Monitor Block Diagram
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UPC - 766907812718
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3. Circuit Description 2.5V 3.3V 12V CN601 HD-15 15PINS RGB HS VS VGA_SDA VGA_SCL CN600 DVI-D 24PINS DVI_SDA DVI_SCL 5V IC603 74F14 5V ANALOG I/P BACKLIGHT_EN BACKLIGHT_CONTROL 3.3V Hsync Vsync IC400 DISPLAY ENGINE IC500 GM5120 LVDS ADC+DVI+SCALER+MCU 3.3V DIGITAL I/P X 8PINS IC501 LVDS 5V INVERTER CN500 LVDS OUT CON IC602 HD-15 DDC EEPROM VGA_SDA VGA_SCL 5V IC600 DVI-D DDC EEPROM DVI_SDA DVI_SCL ADAPTER 12V PWR POWER I/F VGA_SDA VGA_SCL DVI_SDA DVI_SCL 12V 5V DVDD2.5 DVDD3.3 LVDS3.3 CN302 AUDIO PANEL_EN SDA SCL IC502 VPNL 5V SI9933ADY IC402 FLASH EEPROM (F/W) 5V IC404 DATA EEPROM KEY BOARD LCD PANEL ViewSonic Corporation 42! Confidential - Do Not Copy VX800-3
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3. Circuit Description
DDC
POWER
12V
I/F
PWR
ADAPTER
EEPROM
12V
5V
DVDD2.5
DVDD3.3
LVDS3.3
DVI_SCL
24PINS
DVI-D
IC600
VGA_SDA
VGA_SCL
DVI_SDA
5V
IC602
HD-15
DDC
EEPROM
5V
DVI_SDA
DVI_SCL
I/P X 8PINS
VGA_SDA
VGA_SCL
DVI_SDA
EEPROM
PANEL_EN
FLASH
(F/W)
LVDS
LVDS
IC402
IC501
DVI_SCL
SCL
SDA
IC404
DATA
EEPROM
BOARD
CN302
AUDIO
DVI-D
DIGITAL
IC603
74F14
HD-15
CN601
HS
VS
15PINS
CN600
Hsync
Vsync
RGB
VGA_SDA
VGA_SCL
ANALOG
I/P
5V
L17KMW/L18HMW 05AAW LCD MONITOR BLOCK DIAGRAM
LVDS
IC500
3.3V
2.5V
BACKLIGHT_CONTROL
BACKLIGHT_EN
IC400
DISPLAY ENGINE
GM5120
ADC+DVI+SCALER+MCU
3.3V
3.3V
3.3V
3.3V
PANEL
LCD
CN500
LVDS
INVERTER
12V
KEY
5V
5V
CON
OUT
SI9933ADY
IC502
5V
VPNL
ViewSonic Corporation
Confidential – Do Not Copy
VX
8
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