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19
”
LCD
View Sonic VX1940W-2
- 21
–
ViewSonic Corporation
Scaler
R39
0402/10K/5%
DVI_SCL
5
DVI_SDA
5
B14
MCB1608S601EA
1
2
PWR _SW
PWR _SW
VCM_PWM
R23
0402/3.3K/5%
D
P
LL
GI1-
RI1-
C61
0402/100n/16V/Y
R35
0402/100K/5%
B_D17
MCU _VDD 2,4,5
C 23
0402/100n/16V/Y
GI1
CVDD 1V8
AUDIO_FUN CTION
R X2-
R XC+
R X0-
R X2+
R X1-
R XC-
R X1+
R X0+
B_D16
NT68670TFG for 19 wide OD
B_D15
B_D14
R52
NC /0402/10K/5%
R38
0402/4.7K/5%
B_D10
B_D11
B_D13
B_D12
R 46
0402/10K/5%
VGA_3V3
B_D9
B_D5
B_D2
B_D8
B_D4
B_D3
B_D6
B_D7
V33S
2,4,5
V33S
R 51
0402/3.3K/5%
NT68670HTFG for 22 wide OD
F_D13
F_D10
F_D16
F_D12
F_D11
F_D14
F_D15
F_D17
F_D0
F_D18
F_D19
F_D3
F_D5
F_D1
F_D4
F_D2
R55
0402/10K/5%
C66
0402/1u/6.3V/5
B_D0
B_D1
** => initial low(initial low)
RX1+
5
RX1-
5
RX2+
5
RX2-
5
SOGI
RXC-
5
RXC+
5
RX0+
5
RX0-
5
B_D18
B_D19
PAN EL_ON 4
V33S
AMP_SHDN 6
F_D9
R54
0402/10K/5%
F_D8
AUD IO_FU NCTION
R21
0402/3.3K/5%
F_D6
F_D7
C65
NC /0402/33p/50V/N
115
R34
0402/1M/5%
Q1
2N7002/RoH S
1
3
2
RX
TX
REF CLKI for NT6 862 5/65
SDA
SCL
B_D[0..19]
SD A1
TP
1
For Debug Use
R93
0402/0R/5%
F_D[0..19]
OE
OE
OE
OE
OE
FSTH I
D VI_HPD 5
90
15
SOU RCE_SELEC T
AUTO_ADJ
R32
0402/4.7K/5%
Option for NT68670
V33S
26
GND_POWER
Option for NT68670
NT68625 for 19W DUSB only
INV_ADJ
4
R30
NC/0402/10K/5%
NT68665H for 22 wide Dual
V33S
KEY_UP
MENU
KEY_DOWN
PWR _SW
C17
0402/100n/16V/Y
R20
0402/470R/1%
C26
0402/22p/50V/N
R42
0402/10K/5%
GND _POWER
R43
0402/10K/5%
R37
0402/4.7K/5%
Pi n51 to DVDD For NT6 8670 w/ 100 nF
115
SDA
SDA
SCL
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
WP
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
POL
STV
C 16
0402/100n/16V/Y
VOL_ADJ
KEY_UP
AUTO_ADJ
KEY_DOWN
PWR_SW
4
AUTO_ADJ
4
MEN U
4
KEY _U P
4
SOUR CE_SELECT
4
KEY _D OWN
4
HSDA
TP
1
HSCL
TP
1
24C04_SDA
24C04_SCL
R53
0402/3.3K/5%
FSTHI
FSTHI
FSTHI
FSTHI
R36
0402/10K/5%
BSTHI
BSTHI
BSTHI
BSTHI
R47
0402/10K/5%
C27
0402/22p/50V/N
REFCLKI
24C04_WP
24C04_SDA
HDCP
OPTION
C 15
0402/100n/16V/Y
S
E
E
PR
OM
U4
AT24C04N -10S1-2.7/R oH S
A0
1
A1
2
A2
3
GND
4
SD A
5
SCL
6
TEST
7
VCC
8
GND_POWER
R50
0402/3.3K/5%
MCU_VDD
GND _POWER
R33
0402/100R/5%
GN D_POWER
C 14
0402/100n/16V/Y
R91
0402/0R /5%
R25
0402/100R/5%
R28
NC/0402/100R /5%
* => open drain(High Pulse)
RSTn
High w/o Audio
SDA
WP
SC L1
TP
1
R 90
0402/10K/5%
R26
0402/100R/5%
HSO
Low with Audio
V33S
VOL_PWM 6
SCL
R48
0402/1K/5%
GN D_POWER
C29
0805/1u/25V/7
GND_POWER
RX
GN D_POWER
R29
0402/10K/5%
C22
1206/10u/6.3V/5/RoHS
C 19
0402/100n/16V/Y
GND _POWER
C 18
0402/100n/16V/Y
R 49
0402/10K/5%
BI1
MUTE
H SO
C30
0402/100n/16V/Y
ADC_VAA 2,4,5
HSIN
DVDD
2,4,5
VSIN
GVON
R41
NC /0402/10K/5%
C21
0402/100n/16V/Y
R96
0402/1K/5%
C25
0402/100n/16V/Y
PVCC
R24
0402/100R/5%
24C04_SDA
24C04_WP
24C04_SCL
PV
CC
PV
CC
CVDD1V8
MU TE
C24
0402/100n/16V/Y
R92
0402/0R /5%
R22
0402/100R/5%
D VDD
U2
N T68665
RSTB
1
MCU_VC C
2
MCU_GND
3
RX2+
4
RX2-
5
AV
CC
6
RX1+
7
RX1-
8
A
G
ND
9
RX0+
10
RX0-
11
A
G
ND
12
RXC+
13
RXC-
14
AV
CC
15
REXT
16
PV
CC
17
P
G
ND
18
BIN 1+
19
BIN 1-
20
SOG1I
21
GIN1+
22
GIN1-
23
RIN1+
24
RIN1-
25
A
DC
_
VAA
26
A
D
C
_
G
NDA
27
PC2
28
P
D6
29
PB3/AD C3/INTE1
30
P31/TXD
31
P30/RXD
32
PB2/AD C2/INTE0
33
PB7/D DC_SDA1
34
PB6/D DC_SCL1
35
PA
3
/P
W
M5
36
PA
4
/P
W
M
6*
37
PA
5
/P
W
M
7*
38
PA
6
/P
W
M
8*
39
PA
7
/P
W
M
9*
40
HSYN CI1
41
TOUTP/VSYNC I1
42
P
LL_
G
ND
43
TCLK
44
P
LL_
V
DD
45
PB5/D VI_SDA0
46
PB4/D VI_SCL0
47
RSTn/PD 5
48
SDA/P35
49
SCL/P34
50
IR Qn
51
C
V
DD
52
D
V
DD
53
RSBA1P/V0
54
RSBA1M/V1
55
RSBA2P/V2
56
RSBA2M/V3
57
RSBA3P/V4
58
RSBA3M/V5
59
RSCLKAP/V6
60
RSCLKAM/V7
61
RSGA1P/VC KI
62
R SGA1M
63
D
G
N
D/
C
G
ND
64
PC6
102
D
G
N
D/
C
G
ND
1
01
RSR B3M/DHS
100
RSRB3P/DVS
99
RSR B2M/DDE
98
R SRB2P/DCLK
97
RSR B1M/TTL_POL
96
R SRB1P
95
RSGB3M/R7
94
RSGB3P/R6
93
RSGB2M/R5
92
RSGB2P/R4
91
D
V
DD
90
SP
89
RSGB1M/T0M/R3
88
R SGB1P/T0P/R2
87
RSC LKBM/T1M/R1
86
R SCLKBP/T1P/R0
85
RSBB3M/T2M/G7
84
RSBB3P/T2P/G6
83
RSBB2M/TCLK1M/G5
82
R SBB2P/TCLK1P/G4
81
RSBB1M/T3M/G3
80
RSBB1P/T3P/G2
79
D
G
N
D/
C
G
ND
78
RSRA3M/T4M/G1/R SRB0M
77
RSR A3P/T4P/G0/R SRB0P
76
RSRA2M/T5M/B7/GSGB0M
75
R SRA2P/T5P/B6/R SGB0P
74
RSRA1M/T6M/B5/R SGB0M
73
R SRA1P/T6P/B4/RSBB0P
72
RSGA3M/TCLK2M/B3
71
R SGA3P/TC LK2P/B2
70
RSGA2M/T7M/B1
69
RSGA2P/T7P/B0
68
PA
1
/P
W
M3
67
PA
2
/P
W
M4
66
PA
0
/P
W
M2
65
OSCO
128
OSCI
127
PB0/AD C0
126
PB1/AD C1
125
PC5
124
PC4/PWM1
123
PC3/PWM0
122
**PC1
121
**PC0
120
NC
(VS
N
C
I/
C
V
D
D)
119
*PWMB/GPO8
118
*PWMA/GPO7
117
GPO6
116
C
V
DD
1
15
IN T_HSO/GPO5
114
INT_VSO/GPO4
113
GPO3/AD1
112
GPO2/AD0
111
GPO1
110
NC
(H
SY
N
CI
/G
N
D)
109
P
D4
108
P
D3
107
P
D2
106
P
D1
105
P
D0
104
PC7
103
INV_ON/OFF 4
VGA_3V3 2,4,5
S
EE
P
R
OM
U3
24LC16BT-I/SN G/RoHS
A0
1
A1
2
A2
3
GND
4
SD A
5
SCL
6
TEST
7
VCC
8
SOURC E_SELECT
B4
0603/0R /R oH S
1
2
C 63
0603/10u/6.3V/5/B
HWP
TP
1
R44
0402/10K/5%
RSTN 1
TP
1
Y1
12 MHz
TX
R27
0402/10K/5%
FSTHI
4
BSTHI
4
F_D[0..19] 4
B_D[0..19] 4
STB
4
STV
4
POL
4
OE
4
CKV
4
VCM_PWM 4
C28
0402/100n/16V/Y
VSIN
2
BI1
2
BI1-
2
SOGI
2
HSIN
2
RI1-
2
RI1
2
GI1
2
GI1-
2
LED_GRN 4
LED_ORG 4
VGA_SCL
2
VGA_SDA
2
TX1
TP
1
GVON
4
GND_POWER
GND _POWER
GND_POWER
GND_POWER
GND_POWER
GND _POWER
GN D_POWER
GN D_POWER
GND_POWER
GND_POWER
DVDD
VGA_3V3
VGA_3V3
GND_POWER
CVD D1V8
AD C_VAA
24C04_WP
RI1
ADC_VAA
DVD D
CVDD1V8
MCU _VDD
MC U_VDD
V33S
MCU_VDD
V33S
GND_POWER
CVD D1V8
MCU _VDD
BI1-
GND_POWER
GND _POWER
MCU_VDD
GN D_POWER
MU TE
6
MU TE
C20
0402/100n/16V/Y
VOL_ADJ
Pin123 High-->Dual
Pin51 to Pin33 For non-OD w/o 100nF
C KV
+
C 62
U WT1C221MC L1GS
IRQn
R X1
TP
1
R31 NC/0402/10K/5%
Pin123 Low-->Analog only
STB
R45
0402/10K/5%
52
R40
NC/0402/10K/5%
LED_GRN
CVD D1V8
53
17
6
24C04_SCL
NT68665 for 19W Dual
LED_OR G
MENU
GN D_POWER
Summary of Contents for VX1940W-2
Page 28: ...0 V 9 0 1 Thu Nov 06 16 57 50 2008 Untitled ...
Page 29: ...0 V 9 0 1 Thu Nov 06 16 55 04 2008 Untitled ...
Page 30: ...19 LCD View Sonic VX1940W 2 33 ViewSonic Corporation 7 Trouble shooting flow chart ...
Page 38: ...22 LCD View Sonic VA1616W 6 40 ViewSonic Corporation 9 Exploded diagram ...
Page 39: ...22 LCD View Sonic VA1616W 6 41 ViewSonic Corporation ...