Scaler - ViewSonic VX1962wm Service Manual

Scaler

C14
DVDD 0402/100n/16V/Y
53 90
C18 C19
0402/100n/16V/Y 0402/100n/16V/Y
GND_POWER
5
5
5
5
CVDD1V8
5
5
52 115
5
5
C24 C21
0402/100n/16V/Y 0402/100n/16V/Y
2
2
2
2
GND_POWER
2
CVDD1V8
2
2
115
CVDD1V8
2
C22
2
1206/10u/6.3V/5/RoHS
GND_POWER
DVDD
2
2
5
R93
5
0402/0R/5%
IRQn
C61
0402/100n/16V/Y
GND_POWER
MCU_VDD
0402/22p/50V/N
GND_POWER
R30 R31 NC/0402/10K/5%
NC/0402/10K/5%
TX 1 TX1
TP
RX 1 RX1
TP
SCL
1 SCL1
TP
SDA
1 SDA1
TP
MCU_VDD
R42 R43 R44 R45 R46 R47
0402/10K/5%
0402/10K/5%
0402/10K/5%
0402/10K/5%
0402/10K/5%
0402/10K/5%
SOURCE_SELECT
4 SOURCE_SELECT
AUTO_ADJ
4 AUTO_ADJ
KEY _DOWN
4 KEY _DOWN
KEY _UP
4 KEY _UP
MENU
4 MENU
PWR_SW PWR_SW
4 PWR_SW
VGA_3V3
CVDD1V8
VGA_3V3 2,4,5
6 15 CVDD1V8
C15
0402/100n/16V/Y GND_POWER
B14
MCB1608S601EA
C62
UWT1C221MCL1GS
C20
GND_POWER
0402/100n/16V/Y
U2
R20 0402/470R/1% 16
VGA_3V3
REXT
RX2+ 4
RX2+
RX2+
RX2- 5
RX2-
RX2-
RX1+ 7
RX1+ RX1+
RX1-
8
RX1- RX1-
RX0+
10
RX0+ RX0+
RX0- 11
RX0-
RX0-
RXC+ 13
RXC+ RXC+
RXC-
14
RXC- RXC-
HSIN 41
HSIN
HSY NCI1
VSIN
42
VSIN TOUTP/VSY NCI1
BI1 19
BI1
BIN1+
BI1- 20
BI1-
BIN1-
SOGI
21
SOGI SOG1I
GI1 22
GI1
GIN1+
GI1- 23
GI1-
GIN1-
RI1
24
RI1 RIN1+
RI1- 25
RI1-
RIN1-
MCU_VDD
2
MCU_VCC
C23
0402/100n/16V/Y
3
MCU_GND
GND_POWER
R22 0402/100R/5% 34
VGA_SDA PB7/DDC_SDA1
R24 0402/100R/5% 35
VGA_SCL
PB6/DDC_SCL1
R25 0402/100R/5% 46
DVI_SDA
PB5/DVI_SDA0
R26 0402/100R/5% 47
DVI_SCL PB4/DVI_SCL0
30
PB3/ADC3/INTE1
R28 NC/0402/100R/5% 33
PB2/ADC2/INTE0
AUTO_ADJ 125
PB1/ADC1
SOURCE_SELECT
126
PB0/ADC0
RSTN1 1 RSTn 48
TP RSTn/PD5
SDA 49
SDA/P35
SCL
50
SCL/P34
51
IRQn
R33 0402/100R/5% REFCLKI 44
TCLK
REFCLKI for NT68625/65
128
OSCO
R34 0402/1M/5% 127
OSCI
MCU_VDD
12 MHz
TX 31
Y 1
P31/TXD
RX
32
P30/RXD
R35
0402/100K/5%
C27 C26 C65
0402/22p/50V/N NC/0402/33p/50V/N 1
RSTB
NT68665
GND_POWER C28
0402/100n/16V/Y
GND_POWER
PWR_SW
MENU
GND_POWER
KEY _UP
KEY _DOWN
AUDIO_FUNCTION
High w/o Audio
Low with Audio
V33S
R52
NC/0402/10K/5%
VOL_ADJ
AUDIO_FUNCTION
R55
0402/10K/5%
GND_POWER
ADC_VAA
PVCC
ADC_VAA VGA_3V3 DVDD 17 26
C16 C17
B4 0402/100n/16V/Y 0402/100n/16V/Y
DVDD 2,4,5
0603/0R/RoHS
GND_POWER
GND_POWER
100 B_D17
RSRB3M/DHS
B_D16
99
RSRB3P/DVS
98 B_D15
RSRB2M/DDE
97 B_D14
RSRB2P/DCLK
96 B_D13
RSRB1M/TTL_POL
B_D12
95
RSRB1P
B_D11
94
RSGB3M/R7
93 B_D10
RSGB3P/R6
92 B_D9
RSGB2M/R5
B_D8
91
RSGB2P/R4
B_D7
88
RSGB1M/T0M/R3
87 B_D6
RSGB1P/T0P/R2
84 B_D5
RSBB3M/T2M/G7
B_D4
83
RSBB3P/T2P/G6
B_D3
82
RSBB2M/TCLK1M/G5
81 B_D2
RSBB2P/TCLK1P/G4
80 B_D1
RSBB1M/T3M/G3
B_D0
79
RSBB1P/T3P/G2
86 B_D19
RSCLKBM/T1M/R1
85 B_D18
RSCLKBP/T1P/R0
F_D17
77
RSRA3M/T4M/G1/RSRB0M
76 F_D16
RSRA3P/T4P/G0/RSRB0P
75 F_D15
RSRA2M/T5M/B7/GSGB0M
74 F_D14
RSRA2P/T5P/B6/RSGB0P
F_D13
73
RSRA1M/T6M/B5/RSGB0M
F_D12
NT68670HTFG 72
RSRA1P/T6P/B4/RSBB0P
71 F_D11
RSGA3M/TCLK2M/B3
70 F_D10
RSGA3P/TCLK2P/B2
F_D9
69
RSGA2M/T7M/B1
F_D8
68
RSGA2P/T7P/B0
63 F_D7
RSGA1M
62 F_D6
RSGA1P/VCKI
F_D19
61
RSCLKAM/V7
60 F_D18
RSCLKAP/V6
59 F_D5
RSBA3M/V5
F_D4
58
RSBA3P/V4
F_D3
57
RSBA2M/V3
56 F_D2
RSBA2P/V2
55 F_D1
RSBA1M/V1
54 F_D0
RSBA1P/V0
89
SP
110
GPO1
111
GPO2/AD0
112
GPO3/AD1
113
INT_VSO/GPO4
114
INT_HSO/GPO5
116
GPO6
117
*PWMA/GPO7
118
*PWMB/GPO8
120
**PC0
121
**PC1
28
PC2
122
PC3/PWM0
123
PC4/PWM1
124
PC5
102
PC6
103
PC7
R91 R92
0402/0R/5%
0402/0R/5%
DVI_HPD 5
GND_POWER
24C04_SDA
24C04_SCL
CVDD1V8
24C04_WP
Option for NT68670
LED_ORG
LED_ORG 4
VCM_PWM
VCM_PWM 4
LED_GRN
LED_GRN 4
V33S
HDCP
V33S 2,4,5 OPTION
R48 U4
0402/1K/5%
1
A0
2
A1
R49 0402/10K/5%
VOL_PWM 6
3
A2
4
GND
C29
0805/1u/25V/7 AT24C04N-10S1-2.7/RoHS
GND_POWER GND_POWER
33
ADC_VAA 2,4,5
C63
0603/10u/6.3V/5/B
B_D[0..19]
B_D[0..19] 4
1
2
3
4
24LC16BT-I/SNG/RoHS
F_D[0..19]
F_D[0..19] 4
GND_POWER
GND_POWER
R29 R27
0402/10K/5%
BSTHI BSTHI BSTHI BSTHI
0402/10K/5%
BSTHI 4
FSTHI FSTHI FSTHI FSTHI FSTHI
FSTHI 4
OE OE OE OE OE
OE 4
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
POL 4
STV
STV 4
GVON
GVON 4
HSO
CKV
CKV 4
STB
STB 4
V33S V33S
R90 R36 R37
0402/4.7K/5%
0402/10K/5%
0402/10K/5%
R38 0402/4.7K/5%
INV_ON/OFF 4
R96 0402/1K/5%
PANEL_ON 4
MUTE MUTE
MUTE 6
VOL_ADJ
HSO
WP
C66
R40
0402/1u/6.3V/5
NC/0402/10K/5%
GND_POWER GND_POWER GND_POWER
MCU_VDD
V33S
R50 R51 R53 0402/3.3K/5%
0402/3.3K/5% R54
0402/3.3K/5% 0402/10K/5%
8
VCC
24C04_WP
7
TEST
Q1
6 24C04_SCL
SCL
24C04_SDA MUTE
5 1
SDA
2N7002/RoHS
C30 24C04_WP 1 HWP
TP
0402/100n/16V/Y
24C04_SCL 1 HSCL
TP
GND_POWER
GND_POWER
24C04_SDA
1 HSDA
TP
MCU_VDD
MCU_VDD 2,4,5
R21 R23
U3 0402/3.3K/5%
0402/3.3K/5%
8
A0 VCC
7 WP WP WP WP WP WP WP WP WP WP WP WP WP WP WP WP WP WP WP WP
A1 TEST
SCL
6
A2 SCL
5 SDA SDA
GND SDA
C25
0402/100n/16V/Y
GND_POWER
V33S
R32
0402/4.7K/5%
INV_ADJ 4
V33S
R39
0402/10K/5%
Pin123 High-->Dual
Pin123 Low-->Analog only
R41
NC/0402/10K/5%
AMP_SHDN 6