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ViewSonic Corporation
Confidential - Do Not Copy
VG921m-4
68
9. Block Diagram
Ana
log
RGB
Colock
GEN
Pane
l
In
te
rfa
c
e
T
riple
ADC
In
te
rfa
c
e
Host
In
te
rfa
c
e
EE
PRO
M
AT2
4
C1
6
Key
pad
AR
AG
AB
HS
VS
A
u
dio
Amp
.
A
PA2065
Cry
s
ta
l
24
M
H
Z
LVD
S
Tr
a
n
s
mi
tt
er
Sw
itc
h
A03401
Digital
DVI
(Opti
o
n)
SCL
SDA
XIN
XO
U
T
24
M
H
Z
PHD
,PCLK
PHS
,
PV
S
RE
「
7:
0
」
,R
O
「
7:0
」
GE
「
7:0
」
GO
「
7:0
」
BE
「
7:
0
」
BO
「
7:0
」
TX
0+ TX
0-
TX
1+ TX
1-
TX
2+ TX
2-
17
”
pane
l
19
”
pane
l
(O
pti
o
n)
DC
Po
w
e
r
R
egu
lato
r
5V
supp
ly
to
pane
l
3.3
V
Supp
ly
C
h
ip
R
T
D
2523B
/R
T
D
2023L
and
M
T
V
512/
R
T
D2120L
(Op
tion
)
Po
w
e
r
Supp
ly
ON
/OF
F
Lin
e
In
Spea
k
er
Out
MCU
M
T
V
512
/R
T
D
2120L
(Opti
o
n)
XO
U
T
24
M
H
Z
B
a
ckl
ight
Co
ntr
ol
In
ve
rt
e
r
AC-IN
Po
w
e
r(
90V
~
264V
)
DC
Po
w
e
r
A
u
dio(
5V)
Backlight
(Opti
o
n)
TMDS
Re
alt
e
k
R
T
D
2523
B/RTD2
0
23L
(
Option)
Summary of Contents for VG921m-4 VS11369
Page 35: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 32...
Page 36: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 33...
Page 39: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 36...
Page 40: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 37...
Page 41: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 38...
Page 48: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 45 Setp4 3 Check the DDC...
Page 56: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 53 16 Take off the bezel...
Page 78: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 75 11 PCB Layout Diagrams...
Page 79: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 76...
Page 80: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 77...
Page 81: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 78...
Page 82: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 79...
Page 83: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 80...
Page 84: ...ViewSonic Corporation Confidential Do Not Copy VG921m 4 81...