ViewSonic VP720B Service Manual - Page 78
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9. BLOCK DIAGRAMS ViewSonic Corporation 5V I101,I102,I105 DC / DC AC 110~220V INPUT 12V ONBACKLITE SWITCHING POWER SUPPLY I901 OZ9RR INVERTER R G B H-Sync V-Sync DVID I108 RTD2363 SXGA LVDS SCALAR 1.8V,2.5V,3.3V ADJBACKLITE RXO RXE CLK 12V 5V H/V PANEL POWER 5V V901 LCD PANEL DDC2-SDA DDC2-SCL I104 24LC02 EEPROM AVS SCL RESET SDA DDR-A[11...0] DDR-DQ[31...0] I103 DDR MEMORY IC 2.5V DDC-SDA I106 DDC-SCL MTV512GMG64 I107 24LC16 EEPROM SDA SCL ONBACKLITE VOLUME CONTROL STANDBY 12V I601 TDA7496L AUDIO AMP (OPTION) RL R P60 L SPEAKE 3.3V P603 AUDIO IN KEY- PAD LED ViewSonic Corporation Model Title Date Rev: Confidential - Do Not Copy 75 VP720-1_VP720b-1
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9. BLOCK DIAGRAMS
DVID
L
STANDBY
VOLUME CONTROL
ADJBACKLITE
12V
RESET
AVS
G
SCL
DDC-SCL
H-Sync
B
R
I101,I102,I105
DC / DC
I108
RTD2363
SXGA
LVDS
SCALAR
I106
MTV512GMG64
KEY- PAD
LED
I107
24LC16
EEPROM
SWITCHING
POWER SUPPLY
V901
LCD PANEL
V-Sync
5V
1.8V,2.5V,3.3V
DDC-SDA
SDA
SCL
SDA
I901 OZ9RR
INVERTER
AC 110~220V
INPUT
12V
ONBACKLITE
RXO
RXE
CLK
5V
5V
I601
TDA7496L
AUDIO AMP
(OPTION)
P603
AUDIO IN
P60
SPEAKE
12V
ONBACKLI
TE
R
L
R
PANEL POWER
H/V
3.3V
DDR-DQ[31…0]
DDR-A[11…0]
I103
DDR
MEMORY IC
2.5V
I104
24LC02
EEPROM
DDC2-SDA
DDC2-SCL
ViewSonic Corporation
Confidential – Do Not Copy
VP720-1_VP720b-1
75
Model
Title
Date
Rev:
ViewSonic Corporation