ViewSonic N1750w SERIES Service Manual page 38

Lcd tv monitor
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CLK_ADC
9
AD_CLK
HS_ADC
9
AD_HS
VS_ADC
9
AD_VS
9
AD_SOG
R331 NC
9
ROUT[0..7]
9
GOUT[0..7]
9
BOUT[0..7]
4
C[0..7]
4
Y[0..7]
TP306
TP
PB16
VVS
4
VD_VS
VCLKB
4
VD_CLK
4
VD_VREF
VFIELD
4
VD_Field
VHS
4,14
VD_HS
TP307
TP
VHREF
TP308
TP
VDEN
R309
100
 
1/16W
R310
100
 
1/16W
R311
100
 
1/16W
R312
100
1/16W
 
1
W_ENABLE
R314
100
 
1/16W
2
CH_SEL1
R316
100
 
1/16W
2
CH_SEL2
R318
100
 
1/16W
2
CH_SEL3
SEL1
SEL2
SEL3
audio
video
0
0
0
AV1
AV1
1
0
1
SCART
SCART
0
1
1
PC
TUNER
1
1
1
SVIDEO
ViewSonic Corporation
U300A
COAST
D20
B23
R363
100K
CLKA
CHS
B24
A25
AD_Clamp
HSA
CLAMP
C22
A24
R364
VSA
CVS_COAST
100K
C21
R367
PCHS_SOG
100K
ROUT0
F26
DATA_PA0
ROUT1
G25
DATA_PA1
ROUT2
G24
DATA_PA2
ROUT3
F25
DATA_PA3
ROUT4
E26
DATA_PA4
ROUT5
G23
DATA_PA5
3.3VM
ROUT6
F24
DATA_PA6
ROUT7
E25
DATA_PA7
GOUT0
D26
DATA_PA8
GOUT1
F23
DATA_PA9
GOUT2
E24
DATA_PA10
GOUT3
D25
DATA_PA11
GOUT4
C26
DATA_PA12
GOUT5
E23
DATA_PA13
GOUT6
D24
DATA_PA14
GOUT7
C25
DATA_PA15
BOUT0
B26
DATA_PA16
BOUT1
D23
DATA_PA17
BOUT2
B25
DATA_PA18
BOUT3
A26
DATA_PA19
BOUT4
D22
DATA_PA20
BOUT5
C24
DATA_PA21
BOUT6
D21
DATA_PA22
BOUT7
C23
DATA_PA23
C0
C14
DATA_PB0
C1
A13
DATA_PB1
C2
B13
DATA_PB2
C3
C13
DATA_PB3
C4
A12
DATA_PB4
C5
B12
DACV3
DATA_PB5
C6
C12
DATA_PB6
C7
A11
DATA_PB7
Y0
B11
DATA_PB8
Y1
C11
DATA_PB9
Y2
A10
DATA_PB10
Y3
B10
DATA_PB11
Y4
C10
DATA_PB12
Y5
A9
DATA_PB13
Y6
B9
DATA_PB14
Y7
C9
DATA_PB15
A8
DATA_PB16
B8
DATA_PB17
C8
DATA_PB18
A7
DATA_PB19
B7
DATA_PB20
A6
DATA_PB21
D8
DACV3
DATA_PB22
C7
DATA_PB23
T26
CLKC_CPV
R25
DATA_PC0_CPH
R24
DATA_PC1_STH1
R26
DATA_PC2_RLS
P24
DATA_PC3_LP
P25
DATA_PC4_POL
P26
DATA_PC5_SHC
N26
DATA_PC6_INV1
N25
DATA_PC7_INV2
Change to 5VP
5VP
5V
will increase
the Power
Consumption
R374
R375
NC
NC
about
U301 PCA9554D
0.4~0.5W
1
16
A0
VDD
2
15
A1
SDA
SDA
3
14
SCL
A2
SCL
4
13
1K
1/16W
R313
 
I/O0
INT
5
12
R315
100
 
1/16W
I/O1
I/O7
MUTE
6
11
R317
100
 
1/16W
I/O2
I/O6
7
10
R319
100
 
1/16W
SRS_CTL
I/O3
I/O5
8
9
R320
100
 
1/16W
VSS
I/O4
VIDEO_SEL
VIDEO_SEL for ADC input selection
(source :HD & VGA)
9
 
1/16W
U300C
9
SPV301A
 
1/16W
Y4
PCK1
CLK1
 
1/16W
AA4
CLK2
AD2
PVSOUT
VSOUT
AD1
PHSOUT
HSOUT
AC4
PDENOUT
DEN
Display Port
U1
VOUT0
T3
VOUT1
U2
VOUT2
U3
VOUT3
V1
VOUT4
V2
VOUT5
V3
VOUT6
W1
VOUT7
Y1
VOUT8
W2
VOUT9
W3
VOUT10
W4
VOUT11
Y2
VOUT12
Y3
VOUT13
AA1
VOUT14
AA2
VOUT15
AA3
VOUT16
AB1
VOUT17
AB2
VOUT18
AB3
VOUT19
AB4
VOUT20
AC1
VOUT21
R305
AC2
VOUT22
91K
 
1/16W
AC3
VOUT23
C356
CBU
AE9
AE1
CBU
VOUT24
0.1uF
AD3
VOUT25
AE2
VOUT26
AC5
VOUT27
AF1
VOUT28
C357
CBL
AD10
AD4
CBL
VOUT29
0.1uF
AC6
VOUT30
R306
RSET
AD9
AF2
RSET
VOUT31
1.5K
1/16W
 
VREF
C358
AF8
AD18
VREF
VOUT32
0.1uF
AF19
VOUT33
AE19
VOUT34
AF20
VOUT35
AD19
VOUT36
AE20
VOUT37
AF21
VOUT38
AD20
VOUT39
R307
91K
 
1/16W
AE21
VOUT40
AF22
VOUT41
C360
AD13
AD21
VMCBU
VOUT42
0.1uF
AE22
VOUT43
AF23
VOUT44
AF24
VOUT45
AD22
VOUT46
C361
AC13
AE23
VMCBL
VOUT47
0.1uF
R308
AF12
AF7
TROUT
VMRSET
AROUT
9.1K
 
1/16W
AF9
TGOUT
AGOUT
C362
AF11
AF10
TBOUT
VMREF
ABOUT
0.1uF
AE13
SVMOUT
5VP
R370
3,4,5,9,11,14,15
NC
3,4,5,9,11,14,15
R371
INV_PRO
1
100
 
1/16W
1,10
Q302
NC
10
2
N1750w
38
C390
C389
C388
C387
22pF
22pF
22pF
22pF
R301
100
1/16W
P_CLK
 
P_CLK
P_VS
R302
100
 
1/16W
P_VS
P_HS
R303
100
 
1/16W
P_HS
P_DATAEN
R304
100
 
1/16W
P_DATAEN
RN301
B0
4
5
3
6
B1
2
7
B2
RN302
B3
1
8
4
5
B4
3
6
B5
22
 
1/16W
B6
2
7
1
8
B7
RN303
B[0..7]
1,13
G0
4
5
22
 
1/16W
3
6
G1
G2
2
7
RN304
1
8
G3
4
5
G4
G5
3
6
22
 
1/16W
2
7
G6
1
8
G7
RN305
G[0..7]
1,13
4
5
R0
22
 
1/16W
R1
3
6
R2
2
7
RN306
1
8
R3
R4
4
5
R5
3
6
22
1/16W
2
 
7
R6
R7
1
8
R[0..7]
1,13
22
 
1/16W
CN300
1
C397
2
0.1uF
3
4
5
4
5
6
3
RN327
6
7
2
22
 
1/16W
7
8
1
8
5
4
RN320
9
6
3
22
 
1/16W
10
7
2
11
8
1
12
5
4
RN321
13
6
3
22
 
1/16W
14
7
2
15
8
1
TP309
TP
16
5
4
RN322
TP310
TP
17
6
3
22
 
1/16W
TP311
TP
18
7
2
19
8
1
20
5
4
RN323
21
6
3
22
 
1/16W
22
7
2
23
8
1
24
5
4
RN324
25
6
3
22
 
1/16W
26
7
2
27
8
1
28
5
4
RN325
29
6
3
22
 
1/16W
30
7
2
31
8
1
32
5
4
RN326
33
6
3
22
1/16W
 
34
7
2
35
8
1
36
R372
22
 
1/16W
37
R373
22
 
1/16W
38
39
40
C363
+
C396
10uF/16V
0.1uF
CONN
U300E
1,13
FM0
B22
FM0
FM1
A23
FM1
FM2
A22
1,13
FM2
FM3
B21
1,13
FM3
FM4
A21
FM4
FM5
A20
1,13
FM5
FM6
C20
FM6
FM7
B20
FM7
FM8
C19
FM8
FM9
A19
FM9
FM10
B19
FM10
FM11
C18
FM11
TP301
TP
B18
FM12
TP302
TP
A18
FM13
TP303
TP
A17
FM14
TP304
TP
C17
FM15
TP305
TP
B17
FM16
FM17
A16
Storage Port
FM17
FM18
B16
FM18
FM19
C16
FM19
FM20
A15
FM20
FM21
B15
FM21
FM22
C15
FM22
FM23
A14
FM23
FM24
B14
FM24
FM25
AC14
FM25
FM26
AE14
FM26
FM27
AD14
FM27
FM28
AF15
FM28
FM29
AE15
FM29
FM30
AD15
FM30
FM31
AF16
FM31
FM32
AE16
FM32
FM33
AD16
FM33
FM34
AF17
FM34
FM35
AE17
FM35
FM36
AD17
FM36
FM37
AF18
FM37
FM38
AE18
FM38
SPV301A
L311
300 OHM
3.3VM
FM0
FM1
FM2
FM3
FM4
FM5
FM6
FM7
FM8
FM9
FM10
FM11
FM17
FM18
FM19
FM20
FM21
FM22
FM23
FM24
FM25
FM26
FM27
FM28
FM29
FM30
FM31
FM32
FM33
FM34
FM35
FM36
FM37
FM38
5V
L310
300 OHM

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