ViewSonic N2750w-1, N2750w-1M, VS10576-1M Service Manual

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Service Manual
ViewSonic N2750w-1(M)
Model No. VS10576-1M
27” LCD TV
(N2750w-1M_SM Rev. 1a Apr. 2006)
ViewSonic® 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
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Copyright
Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of ViewSonic Corporation.
Disclaimer
ViewSonic makes no representations or warr anties, either expressed or impl ied, with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose. Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.
Trademarks
Optiquest is a registered trademark of ViewSonic Corporation. ViewSonic is a registered trademark of ViewSonic Corporation. All other trademarks used within this document are the property of their respective owners.
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
1a 04/04/06 Initial Release Sophia Kao
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TABLE OF CONTENTS
1. Precautions and Notices .................................
.....................................3
2. Service Tool & Equipment Required.....................................................4
3. Specifications........................................................................................4
4. Exploded View and Parts List................................................................8
5. Block Diagram.......................................................................................10
6. Schematic Diagrams.............................................................................11
7. Working Theorem................................................................................. 25
8. Wiring Diagram..................................................................................... 27
9. PCB Layout Diagrams..........................................................................28
10. Trouble Shooting Flow Chart..............................................................36
11. Adjustment.......................................................................................... 40
12. Recommended Spare Parts List.........................................................42
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1. Precautions and Notices
1.1. SAFETY PRECAUTIONS
This LCD TV is manufactured and tested on a ground principle that a user's safety comes first. However, improper use or installation may cause damage to the LCD TV as well as to the user. Carefully go over the following WARNINGS before installing and keep this guide handy.
WARNINGS:
This LCD TV should be operated only at the correct power sources indicated on the label on
!
the rear end of the LCD TV. If you're unsure of the power supply in your residence, consult your local dealer or power company. Use only the special power adapter that comes with this LCD TV for power input.
!
Do not try to repair the LCD TV yourself as it contains no user-serviceable parts. This
!
LCDTV should only be repaired by a qualified technician. Do not remove the LCD TV cabinet. There is high-voltage parts inside that may cause
!
electric shock to human bodies, even when the power cord is unplugged. Stop using the LCD TV if the cabinet is damaged. Have it checked by a service technacian.
!
Put your LCD TV only in a clean, dry environment. If it gets wet, unplug the power cable
!
immediately and consult your service technician. Always unplug the LCD TV before cleaning it. Clean the cabinet with a clean, dry cloth.
!
Apply non-ammonia based cleaner onto the cloth, not directly onto the glass screen. Keep the LCD TV away from magnetic objects, motors, TV sets, and transformer.
!
Do not place heavy objects on the LCD TV or power cord.
!
1.2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.
1.3. SERVICE NOTES
1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
2. When replacing a high wattage resistor (more than 1W of metal oxide film resistor) in circuit board, keep the resistor about 5mm away from circuit board.
3. Keep wires away from high voltage, high temperature components and sharp edges.
4. Keep wires in their original position so as to reduce interference.
5. Usage of this product please refer to also user's manual.
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2. Service Tool & Equipment Required
1. SIGNAL GEN.
2. MULTIMETER
3. OSCILLOSCOPE
4. SCREW DRIVER
5. IRON
6. ABSORBER
7. SOLDER
8. DUMMY LOAD (5Ω/200W)
9. DVD PLAYER
3. Specifications
3.1. PRODUCT SPECIFICATIONS
LCD Panel 27" TFT
Power Management < 5W (OFF MODE)
Displayable Resolution VESA 1366 x 768 max.
Pixel Dimension 0.4365(H)×0.4365(W)mm
LCD Display Color 16.7M Color Max. (8b it/co lor)
Viewing Angle CR≧10 Horizontal: -85°+85° Vertical: -85°+85°
Contrast Ratio 1000 : 1 (typical)
Brightness 550 cd/m
Response Time 8ms (typical ,gray to gray )
Active Display Area 596.259mm×335.232mm
RF Tuner Input level: 0 ~ +15 dB mV Rang: NTSC 55.25 to 801.25 MHz, 2-69 channels for Off-Air and 2-125 Channeis for CATV
Power Voltage: 100~240 V Consumption:150 Watts(Max.)
Speaker 10W×2
Compliance FCC,UL
Temperature Operating : 0°C~ +40°C Storage : -20°C~+60°C
2
(typical)
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3.2. FACTORY SUPPORTING MODES
ITEM 1 2 3 4 TIMING
640× 480 60HZ 640× 480 67HZ 640× 480 75HZ 720× 400 70HZ
Pixel Rate 25.175MHZ 30.240MHZ 31.500MHZ 28.322MHZ H TOTAL 31.778us 28.571us 26.667us 31.778us H DISPLAY 25.422us 21.164us 20.317us 25.422us H B-Porch 1.907us 3.175us 3.810us 1.907us H Width 3.813us 2.116us 2.032us 3.813us H Border 0.318us 0.000us 0.000us 0.318us V TOTAL 16.683ms 15.000ms 13.334ms 14.268ms V DISPLAY 15.253ms 13.714ms 12.800ms 12.710ms V B-Porch 1.049ms 1.114ms 0.427ms 1.111ms Vs Width 0.064ms 0.086ms 0.080ms 0.064ms V Border 0.254ms 0.000ms 0.000ms 0.254ms H/V Sync -/- -/- -/- -/+ Interlace No. No. No. No.
ITEM 5 6 7 8 TIMING
800× 600 56HZ 800× 600 60HZ 800× 600 72HZ 800× 600 75HZ
Pixel Rate 36.000MHZ 40.000MHZ 50.000MHZ 49.500MHZ H TOTAL 28.444us 26.400us 20.800us 21.333us H DISPLAY 22.222us 20.000us 16.000us 16.162us H B-Porch 3.556us 2.200us 1.280us 3.232us H Width 2.000us 3.200us 2.400us 1.616us H Border 0.000us 0.000us 0.000us 0.000us V TOTAL 17.778ms 16.579ms 13.853ms 13.333ms V DISPLAY 17.066ms 15.840ms 12.480ms 12.800ms V B-Porch 0.626ms 0.607ms 0.478ms 0.448ms Vs Width 0.057ms 0.106ms 0.125ms 0.064ms V Border 0.000ms 0.000ms 0.000ms 0.000ms H/V Sync +/+ +/+ +/+ +/+ Interlace No. No. No. No.
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ITEM 9 10 11 12 TIMING
832× 624 74.5HZ 1024× 768 60HZ 1024× 768 70HZ 1024× 768 75HZ
Pixel Rate 57.280MHZ 65.000MHZ 75.000MHZ 78.750MHZ H TOTAL 20.111us 20.677us 17.707us 16.660us H DISPLAY 14.525us 15.754us 13.653us 13.003us H B-Porch 3.910us 2.462us 1.920us 2.235us H Width 1.117us 2.092us 1.813us 1.219us H Border 0.000us 0.000us 0.000us 0.000us V TOTAL 13.417ms 16.666ms 14.272ms 13.328ms V DISPLAY 12.549ms 15.880ms 13.599ms 12.795ms V B-Porch 0.784ms 0.600ms 0.513ms 0.466ms Vs Width 0.060ms 0.124ms 0.106ms 0.050ms V Border 0.00ms 0.000ms 0.000ms 0.000ms H/V Sync -/- -/- -/- +/+ Interlace No. No. No. No.
ITEM 13 TIMING
1280 × 1024 60HZ
Pixel Rate 108MHZ H TOTAL 15.630us H DISPLAY 11.852us H B-Porch 2.296us H Width 1.037us H Border 0.000us V TOTAL 16.661ms V DISPLAY 16.005ms V B-Porch 0.594ms Vs Width 0.047ms V Border 0.00ms H/V Sync +/+ Interlace No.
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3.3. D-SUB CONNECTOR
Connector pin assignments for VGA cable
The signal cable connector shall be a molded-over, shield twisted pair cable. T he cable shall be
1.8 meters long. The pin assignments shall be listed as below:
Connector pin assignments for DVI cable DVI: 24 pins DVI connector is designed to match with DVI-D digital signal cable, the pin assignment is as the following:
PIN D-SUB Connector
1 Red Video 2 Green Video 3 Blue Video 4 NC 5 GND 6 GNC 7 GND 8 GND
9 +5V for DDC 10 GND 11 NC 12 SDA 13 H-sync 14 V-sync 15 SCL
Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment
1 TMDS RX2- 9 TMDS RX1- 17 TMDS RX0­2 TMDS RX2+ 10 TMDS RX1+ 18 TMDS RX0+ 3 TMDS Ground 11 TMDS Ground 19 TMDS Ground 4 Floating 12 Floating 20 Floating 5 Floating 13 Floating 21 Floating 6 DDC Clock 14 +5V Power 22 TMDS Ground 7 DDC Data 15 Ground 23 TMDS Clock+ 8 Floating 16 Hot Plug Detect 24 TMDS Clock-
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FIG.1
FIG.1
MAIN PCB ASS'Y
KEYPAD PCB ASS'Y
POWER PCB ASS'Y
NOTE.1
1F15
1F16
X3
1F17
1F18
X3
1F38
1F29
X2
1F25
1F30
1F31
X10
1F25
1F33
1F22
1F24
X6
V901
1F10
1F11
X2
1F11
X3
X3
1F11
1F11
X2
1F01
1F12
X4
1F06
X4
IR PCB ASS'Y
1F12
X6
1F12
X4
AUDIO PCB ASS'Y
1F28
X2
1F26
1F25
1F29
X2
1F19
X2
1F21
X4
1F21
1F13
X2
1F32
1F14
X3
5B02
X6
5B01
X4
5B03
2C01
2C05
2C03
2C04
2C06
X2
1F23
X4
1F23
X4
1F27
1F36
1F21
X2
1F05
1F12
1F39
X3
1F25
1F25
1F25
1F25
1F25
4. Exploded View and Parts List
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ViewSonic Model Number: VS10576-1M Rev: 1a
Serial No. Prefix: PJL
Item ViewSonic P/N Ref. P/N Description Q't
y
1F01 C-00001791 2603307683 BEZEL ASS’Y JC278 ABS 94V0 BLACK #4001 1 1 1F05 N/A 2044266501 FUNCTION KEY JC278 ABS 94V0 AL-PLATE POWER 1 1 1F06 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 4 4 1F10 N/A 2071971300 METAL FITTG JC278 SECC t=1.0mm FOR PANEL 1 1 1F11 N/A 2080005200 SCREW,SPE M3*3 TYPE I FOR HS PANEL NI 10 10 1F12 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 14 14 1F13 N/A 2072050400 METAL FITTG-I/O JC278 SECC t=1.0mm IO MAIN(U) 1 1 1F14 N/A 2083730108 SCREW,BND T+ M3X10,T24,F,NI 3 3 1F15 N/A 2072050500 METAL FITTG-I/O JC278 SECC t=1.0mm IO SIDE(U) 1 1 1F16 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 3 3 1F17 N/A 2027259402 DUST COVER JC278 ABS 94HB BLACK #4001 1 1 1F18 N/A 2083730108 SCREW,BND T+ M3X10,T24,F,NI 3 3 1F19 N/A 2071971400 METAL FITTG JC278 SECC t=1.0mm FOR SPK 1 1
1F21 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 8 8 1F22 N/A 2071870300 BRACKET,FIX JC278 Aluminum 1 1 1F23 N/A 2082740122 SCREW,BND+ M4X12 (BND+) 8 8 1F24 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 6 6 1F25 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 8 8 1F26 N/A 2027259002 DUST COVER JC278 ABS 94HB BLACK #4001 1 1
1F27 N/A 2044266601 FUNCTION KEY JC278 ABS 94V0 AL-PLATE FUNCTI 1 1 1F28 M-SCW-0824-0285 2084730082 SCREW,BND T+ M3X8(BND T+) 2 2 1F29 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 11 11 1F30 N/A 2071671000 SHIELD PLATE JC278 SECC t=1.0mm 1 1 1F31 N/A 2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 10 10 1F32 N/A 2083630068 SCREW FMS+ M3X6,M,S-TITE,F,NI 2 2 1F33 N/A 2080040062 SCREW,SPE M4*8 PMS-3/W 1 1 1F36 N/A 2072459100 INSULATOR PC FR700 180X130 SONY T4000 1 1 1F38 N/A 2071871100 BRACKET,FIX JC278 SECC T=0.8mm FOR SWITCH 1 1 1F39 M-SCW-0824-0811 2080003700 SCREW,SPE 1SZZTER001A M3*6LMSWR17/FZMY1 3 3 2C01 C-00001790 2022262602 CABI BACK JC278 ABS 94HB BLACK #4001 1 1 2C03 N/A 2027259202 DUST COVER JC278 ABS 94HB BLACK #4001 1 1 2C04 N/A 2027259302 DUST COVER JC278 ABS 94HB BLACK #4001 1 1 2C05 N/A 2027259102 DUST COVER JC278 ABS 94HB BLACK #4001 1 1 2C06 N/A 2082740122 SCREW,BND+ M4X12 (BND+) 2 2 5B01 C-00001876 2071870401 BRACKET,FIX JC278 BASE ALUMINUM BLACK 4001 1 1 5B02 PL-PD-0714-0069 2039802303 FOOT PAD VA520 CR420x φ 16.5x5.8 BLACK 6 6 5B03 N/A 2082750402 SCREW,BND+ M5X40,M,P,ZN-CC 4 4
EXPLODED PARTS LIST (N2750w)
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TV Tuner
Philips FQ1236/F H-3
TV Sound Processor
Micronas MSP3445/
MSP3425
Audio Amp
YAMAHA YDA135
MUX
HEF 4052BT
Video Decoder
Trumpion
T0956
Video SW
TS5V330/ADG774 ADC
AD9883KST
SDRAM
2Mx32x3
K4S643232H
IR Receiver
Keypad Control
EEPROM
24C16
MCU
128K
Scaler
w/ de-interlace
trumpion
p.HD (t0932)
LVDS Tx
PC Audio In YPbPr Audio In AV Audio In
TV AV
Audio Out
L+R L+R
VGA input
CCIR656
RGB 24bits
A port
B port
I2C Control
To Panel
ANT
DVI+HDCP interface
SiI169
YPbPr
S-video YCbCr W/3D-COM,C.C&V-CHIP
SDRAM
1Mx16
M12L16161A
POWER SUPPLY
To INVERTER +24V
To main board +12V
DC to DC
+5V +5V +3.3V +2.5V
+12V
Earphone Amp
TI TPA6110A2
EARPHONE
STK6012
5. Block Diagram
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VCC=+5V
ION_OFF
IADJ
IADJ
ION_OFF
PANELPWR11
BACKLITn11
PHDPWM08
TVM_PWRp
11
TVM_PWRp
11
SYS_PD11
Vpnl
VCC
P
VCCV
VCC
+3V3
VCCV
VCCV
VCCV
P
+12VIN
+12VIN
VCCV +3V3
+12V
VCC
P
+12VIN
VCC
+2V5
+2V5
+2V5S
VCC
+3V3
VCC
+3V3
+3V3S +5VS
R269NCR270
NC
L182 3.5X9X0.8
L1813.5X9X0.8
C105100n
D101 MS22
1 2
I101 SAKEN/8050SD
1
3
5 2
4
VIN
GND
ON/OFF OUTPUT
FEEDBACK
L104 40uH
C107100n
Q104
MMBT3904
1
3
2
C111 100n
C121 NC
R101 NC/0R
R102 NC/0R
L107 CHOKE
P101
CON10
1
2
3
4
5
6
7
8
9
10
C106
1500uF/10VLESR
C101
1000uF/16V
R103
NC/0R
C110100n
C113 NC
C115
1500uF/10VLESR
I104 LM1084/3V3/TO263
3 2
1
VI VO
ADJ
R116 NC
R104 10K
R117 0R
C118 47uF/16V
C119
220uF/16V
R111
4K7
C116100n
L108 40uH
I103 SAKEN/8050SD
1
3
5 2
4
VIN
GND
ON/OFF OUTPUT
FEEDBACK
D103 MS22
1 2
C114100n
R509 0R
Q111
SI9933ADY
1 2 3 4 5
6
7
8
S1 G1 S2 G2 D2
D2
D1
D1
R272 10K
4
Q113 AP9620M
4
7
123
865
Q105 MMBT3904
1
3
2
Q112 MMBT3904
1
3
2
C117 330p
R106 10K
R115 4K7
R114 4K7
R105 2K2
R118 NC
R108 4K7
Q102 MMBT3904
1
3
2
C112 47uF/16V
R124 10K
R121 4K7
L101 CHOKE
L106 BEAD/80R
R107 2K2
R123NC
Q106
MMBT3904
1
3
2
Q103
MMBT3904
1
3
2
R110 4K7
R109
150R/0805
4
Q101 FDS9435
4
7
123
865
R122 4K7
R271 4K7
R273 4K7
C574 330p
P126
4 HEADER
1
2
3
4
R274 NC
R268 10K
R267 4K7
R275 4K7
Q110 MMBT3904
1
3
2
6. Schematic Diagrams
6.1 DC-Power
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SiI1161 USE ONLY SiI1161 USE ONLY
RX1-
RX0-
RXC+
RX1+
DVI_DET
RX2­RX2+
RXC-
DFP5V RX0+
DVI_VCC
AIB1
AIB4
AIR2
RX0+
AIR0
RX1+
AIB3
AIR6
RX1-
AIB6
AIB2
AIG7
AIB0
AIR7
AIR1
RX2-
AIG2
RX2+ RXC+
AIB7
AIG0
AIR3
DVI_AVCC
AIR4
AIB5
AIG4
AIG1
RXC-
RX0-
AIG3
AIG5
AIR5
AIG6
DVI_SDA DVI_SCL
STDRI OCKINV
DVI_OVCC
DVI_AVCC
DVI_SDA
DVI_SCL
DVI_SDA
DVI_SCL
OCKINV STDRI
DVI_DET 11
AIB[0..7] 6,8
AIG[0..7] 6,8
AIR[0..7] 8
DVI_SCDT 11
DVI_DE 8
DVI_PDn11
DVI_CLK 8
DVI_HS 8
DVI_VS 8
VCC
VDDCD
+3V3
+3V3
+3V3
+3V3
+3V3
VDDCD
VDDCD
+3V3
+3V3
R512
4K7
R129 NC
C135100n
R133 0R
R131 0R
C125100n
C134100n
L111 BEAD/200R
C132100n
C130100n C124100n
R139 0R
R12810K
RP02 47RX4
1 5
2 6
3 7
4 8
I106 M24LC21
1 2 3 45
6
7
8
PRE
E1 E2
VSSSDA
SCL
/WC
VCC
RP01 47RX4
1 5
2 6
3 7
4 8
+
C13310uf/50V
C131100n
P105
DVI_29pin
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
TX2­TX2+
TX2/4GND
TX4­TX4+
DDC_CLK DDC_DATA CRT_Vsync
TX1­TX1+
TX1/3GND
TX3­TX3+
+5V/50mA
GND
HTPLG
TX0­TX0+
TX0/5GND
TX5­TX5+
TXC_GND
TXC+
TXC-
Red
Green
Blue
CRT_Hsync
AGND
R126 4K7
RP04 47RX4
1 5
2 6
3 7
4 8
RP05
47RX4
1 5
2 6
3 7
4 8
RP06 47RX4
1 5
2 6
3 7
4 8
D105 1N4148
1 2
C141
NC
R125 510R
R127 4K7
RP03
47RX4
1 5
2 6
3 7
4 8
ODD REDODD GREENODD BLUEEVEN REDEVEN GREENEVEN BLUE
I105 SII169
10
11
12
13
14
15
16
17
20
21
22
23
24
25
26
27
30
31
32
33
34
35
36
37
49
50
51
52
53
54
55
56
59
60
61
62
63
64
65
66
69
70
71
72
73
74
75
77
44 46
48
47
40 41 42
100
4
1
7
3
9
2
90 91 85 86 80 81 93 94
96
99
6 38 67
5 39 68
18 29 43 57 78
19 28 45 58 76
82
84
88 95
79 83 87 89 92
97
98
8
QE0
QE1
QE2
QE3
QE4
QE5
QE6
QE7
QE8
QE9
QE10
QE11
QE12
QE13
QE14
QE15
QE16
QE17
QE18
QE19
QE20
QE21
QE22
QE23
QO0
QO1
QO2
QO3
QO4
QO5
QO6
QO7
QO8
QO9
QO10
QO11
QO12
QO13
QO14
QO15
QO16
QO17
QO18
QO19
QO20
QO21
QO22
QO23
ODCK
DE
HSYNC
VSYNC
CTL1/KSCL CTL2/KSDA
CTL3
OCKinv/SCL
PIXS
RESETp
STAG_OUT
SDA
PDOn
PDn
RX0+ RX0­RX1+ RX1­RX2+ RX2­RXC+ RXC-
EXT_RES
RSVD
VCC1 VCC2 VCC3
GND1 GND2 GND3
OVCC1 OVCC2 OVCC3 OVCC4 OVCC5
OGND1 OGND2 OGND3 OGND4 OGND5
AVCC1
MODE
AVCC2 AVCC3
AGND1 AGND2 AGND3 AGND4 AGND5
PVCC
PGND
SCDT
R141
10K
D104
1N4148
1 2
C140 NC
C126100n
C142 10p
L109 BEAD/200R
C122 100n
L113 BEAD/200R
C143 100n
+
C12910uf/50V
R134 10R R136 10R
R132 10R
R145 NC
R137 100R
R143
NC R135 10K
R140 NC
R138 NC
C138100n
C137100n
+
C12710uf/50V
+
C13910uf/50V
C128100n
R130 10R
+
C12310uf/50V
L110 BEAD/200R
L112 BEAD/200R
C136100n
R142 NC R144 NC
R146NCR147
NC
6.2 DVI
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SlaveAddr: 0x98
YPbPr-Y
YPbPr-Pb
YPbPr-Pr
YPbPr input
BIR7 BIR6 BIR5 BIR4 BIR3 BIR2 BIR1 BIR0
BIG7 BIG6 BIG5 BIG4
BIG1
BIG2
BIG3
BIG0 BIB7
BIB6 BIB5 BIB4
BIB1
BIB2
BIB3
BIB0
VSYNC
Dsub_SCL
Dsub_SDA
VSYNC
HSYNC
Dsub_SCL Dsub_SDA
VSYNC
Dsub_SDA
HSYNC
Dsub_SCL
HD_RIN HD_GIN HD_BIN
HD_PY
HD_GIN
HD_RIN
PC_G
PC_R
HD_PB
HD_BINPC_B
HD_PRHD_Y
HD_PR
HD_PB
HD_Y
HSYNC
Dsub_SDA
Dsub_SCL
VSYNC
USBDP
USBDM
5V_DCC
VGA_DET
PC_B
PC_R
PC_G
HD_COAST8
HD_RGHS8
SCL4,5,6,7,8,11
SDA4,5,6,7,8,11
BIG[0..7] 7,8,11
BIR[0..7] 8
BIB[0..7] 7,8,11
HDTV_CLK 8 HDTV_HS 8
HDTV_CS 8
VGA_DET 11
GHSYNC 8
GVSYNC 8
DDCSCL 11
DDCSDA 11
USBDP 11
USBDM11
HD_SEL11
VA_PLL
VADA
VAD_D
VCC
VAD_D
VADA
VA_PLL
VDDCA
5V_DDC
5V_DDC
+3V3
VA_PLL
VDDCA
VCC
VCC
R165 47R R168 47R
I108 M24LC21
1 2 3 45
6
7
8
PRE
E1 E2
VSSSDA
SCL
/WC
VCC
R148 4K7
R150 100R
D107 1N4148
12
R149 4K7
C148 47n
R173 NC
R163 10R
C366
47p/ESD
C367
47p/ESD
C368
47p/ESD
C369
47p/ESD
P106 15-pin D-SUB connector
8
7
6
5
4
3
2
1
9 10 11 12 13 14 15
L119 BEAD/80R
R167 100R
R1774K7
R175 100R
R172 100R
C16647p
C167
100p
R174 100R
D106 1N4148
1 2
L118 BEAD/80R
L117 BEAD/80R
C161 22p/ESD
C159 22p/ESD
C160 22p/ESD
R155NC
R1764K7
L123
BEAD/80R
L121
BEAD/80R
R18075R
C185 22p/ESD
C163
47uF/16V
L122
BEAD/80R
R159 22R
C179
22p/ESD
C144 100n
R170 75R
R17875R
C146100n
R161
1K5
R169 75R
R17975R
C175100n
C192 22p/ESD
C176100n
C171100n
C164100n
C165100n
C172100n
C169100n
P107 RCA JACK 1X3
1
2
3
4
5
6
C170100nC177100n
C178100n
C186100n
C187100n
C188100n
C189100n
C190100n
C191100n
R166 100R
I109
AD9883KST-110
54 48 43 49
38
30 31 29
58 37
33
2627394245465152596234351122236978
79
1102021242528323640414447505360616368
80
70 71 72 73 74 75 76 77
2 3 4 5 6 7 8 9
12 13 14 15 16 17 18 19
67 66 64 65
57 56 55
Rain Gain Bain SOGIN
CLAMP
HSYNC VSYNC COAST
REF MIDSCV
FILT
VDVDVDVDVDVDVDVDVD
VD
PVD
PVD
VDD
VDD
VDD
VDD
VDD
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
R7 R6 R5 R4 R3 R2 R1 R0
G7 G6 G5 G4 G3 G2 G1 G0
B7 B6 B5 B4 B3 B2 B1 B0
DATACLK
HSOUT VSOUT
SOGOUT
SDA SCL A0
L114 BEAD/200R
C181100n
C182100n
C183100n
C184100n
C145
100uF/16V
L115 BEAD/200R
RP11 47RX4
1 5
2 6
3 7
4 8
RP12 47RX4
1 5
2 6
3 7
4 8
RP10 47RX4
1 5
2 6
3 7
4 8
RP9 47RX4
1 5
2 6
3 7
4 8
RP7
47RX4
1 5
2 6
3 7
4 8
RP8 47RX4
1 5
2 6
3 7
4 8
R164 100R
R153 100R R154 820R
R152 100R
R158 3K3
L116 BEAD/200R
+
C155
470uF/16V
R157NC
C152
22p
R151 100R
C153
22p
C162 10p
R171 75R
C174
47uF/16V
L120 BEAD/200R
I110
PI5V330
2 3
4
5 6
7
11 10
9
14 13
12
16
8
1
15
S1A S2A
DA
S1B S2B
DB
S1C S2C
DC
S1D S2D
DD
VCC
GND
IN EN
C173100n
C370 47p/ESD
C371 47p/ESD
C372 47p/ESD
C373 47p/ESD
C561
100uF/16V
R444
10K
R443
47K
C149 47n
R156NC
R160 22R
R162NC
C180
100uF/16V
C150 10n
C157NC
C158NC
C156 39n
C154 3n9
C168 100uF/16V
I107 LT1117-3V3
3
1
2
VI
GND
VO
C147 47n
C151
22p
6.3 VGA/YPbPr
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
13
Page 15
TV_TUNER FQ1236MK3 ONLY AND MOVE S_VIDEO TO VIDEO DECODER PAGE
YPbPr-Audio-L
YPbPr-Audio-R
SCL SDA
VFOUT
AFOUT
TSDA
TV_2ndF
TSCL
1CVBS_TV
I_AFL
I_AFR
I_AFL
I_AFR
SCL 3,5,6,7,8,11 SDA 3,5,6,7,8,11
1TV_AFmono 5
1TV_2ndF 5
AV1_AFR5
AV1_AFL5
AF_SEL011
AF_SEL111
HD_AFL5
AV_AFR 5
AV_AFL 5
HD_AFR5
1CVBS_TV 6,7
+5VS
AGND AGND
AGND AGNDAGND
+12V
+12V
+12V
+12V
+12V
+5VS
P108 RCA JACK 1X2
1
2
3
R187100KR199100K
R200100K R188100K
R197100K R185100K
R186100KR198100K
R208 10K
R210 10K
Q108
MMBT3904
1
3
2
R488 56R
L157 3.3uH
C386 330p
R190 100R
C203 68n
R209 1K
R207 NC
L126 BEAD/200R
I111 FQ-1236MK3
2 3 4 5 6
11 12 13 14
9
7815
16
1
10
NC/VTout
Vb(+5V)
SCL SDA
AS
2ndIFout CVBSout VIF(+5V)
AFout
AF-R
TH1
TH2
TH3
TH4
NC/AGC
AF-L
+
C202
10uF/50V
R189 100R
L125 BEAD/200R
C201 330p
R205 18R
L128 BEAD/200R
L127
BEAD/200R
R201 22R
R182100K
I113 HEF4052D
12 14 15 11
1 5 2 4
6
10
9
13
3
16
8
7
X0 X1 X2 X3
Y0 Y1 Y2 Y3
/INen A B
X
Y
VDD
VSS
VEE
R194100K
R206 10K
R184100K
Q107 MMBT3904
1
3
2
R196100K
R202 NC
R183100K
R203 0R
+
C198 10uF/50V
+
C197 10uF/50V
R195100K
R204 10K
R181100K
C196 47uF/16V
C199 47uF/16V
C200100n
C195100n
C194
100n
R193100K
+
C204
10uF/50V
L130
BEAD/600R
C205
100p
+
C207
10uF/50V
R212 15K
C209
100p
C206
100p
R211 15K
L129
BEAD/600R
C208
100p
6.4 TV-Tuner
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
14
Page 16
13,14,15,17,18,22,23,24,25,26,30,35,36,37,38,39,52,57,58,59,64Pin is NC Pin
AUDIO-OUT
AV
YUV-Audio-L
YUV-Audio-R
YPbPr
AV1-AudioR
AV1-AudioL
PC_AUDIO_IN
2SIF
PC_AFR
PC_AFL
AF_PRout
PC_AFL
PC_AFR
AF_PLout
AF_PRout
AF_PLout
AV_AFL4
AV_AFR4
SCL3,4,6,7,8,11
SDA3,4,6,7,8,11
1TV_2ndF4
1TV_AFmono4
AUDIO_L_AMP 10 AUDIO_R_AMP 10
AV1_AFL 4
AV1_AFR 4
HD_AFL 4
HD_AFR 4
VD_RSTn6,7,11
VMTS
VMTS
VMTS
VCCV
VMTS
AGND
AGND
AGND AGND
AGNDAGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
+12V
+
C243
10uF/50V
P111 PHONE_JACK
5 4 3 2 1
+
C248 10uF/50V
I139
LM7808
32
1
VIVO
ADJ
L180 BEAD/200R
P110 RCA JACK 2X3
1
2
3
4
5
6
7
8
9
+
C217
10uF/50V
+
C222
10uF/50V
+
C229
10uF/50V
+
C226
10uF/50V
L132 BEAD/200R
C5571n
C246
100uF/16V
C5561n
R223 0R/1206
R222 0R/1206
R220 100R
R219 100R
R218 10K
C237 10uf/50V
C241
3.3uF/50V
C218 10uF/50V
L131 BEAD/200R
C240
33p
C239
33p
X101
18.432MHz
L133 NC
L139 BEAD/200R
C244 100p
C234330P
C235330P
C236 NC/10uf/50V
R221 10K
L138 BEAD/600R
C245 100p
C223 56p
I114
MSP3425G_LQFP64
50 51
47 44 45 41 42 43
63
2 1
8 9 7 4 3
5
6
12
16
62
31
49
10
11
33
34
53
32
46
271948
54 55
61 60
21 20
29 28
40
56
ANA_IN1+ ANA_IN-
MONO_IN SC1_INL SC1_INR SC2_INL SC2_INR ASG
StandbyQ I2C_SDA I2C_SCL
ADR_WS ADR_CL ADR_DA I2S_WS I2S_CL
I2S_DAout
I2S_DAin1 I2S_DAin2
ResetQ
I2CADR
AHVSUP
AVSUP
DVSUP
DVSS
AHVSS
AGNDC
TESTEN
CAPL_M
VrefTop
Vref1
Vref2
AVSS
XTALin
XTALout
Dctr0 Dctr1
Dacm_L Dacm_R
SC1out_L
SC1out_R
ASG
TP
L140 BEAD/600R
C250 100p
C221 56p
C249 100p
R214
0R
C247100n
C238100n
C214100n
C215100n
C216100n
C242100n
C233 1u/16V 0603
C230 1u/16V 0603
C225 100p
C219 100p
R224 15K
R215 15K
R225 15K
C224 100p
L136 BEAD/600R
R216 15K
C231 100p
L137 BEAD/600R
R217 15K
L134
BEAD/600R
C227 100p
C228 100p
C220 100p
R213 15K
L135
BEAD/600R
C232 100p
6.5 Audio
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
15
Page 17
B7-LLC2
B0-CREF B1-HREF B2-VREF B3-FIELD B5-HS B6-VS
YCbCr-Cr
YCbCr-Cb
AV1-CVBS
YCbCr-Y
VIDEO-IN
S-Y
for pin69
S-C
S-Video
for pin76
1VDFD
1VDCLK
1VDVS AIB6
AIG6
AIG7
AIG3
AIG5
AIG0
AIG2 AIG1
AIG4
AIB3 AIB11VDHref
1VDHS AIB5
AIB21VDVref
MMCASn
MMRASn MMWEn MMCLK
MMA0
MMA9
MMA6
MMA5 MMA7
MMA11
MMA8
MMA2
MMA10
MMA1
MMA4
MMA3
MMD08 MMD10
MMD14
MMD11
MMD15
MMD12
MMD09
MMD13
MMD05
MMD02
MMD07
MMD04
MMD00
MMD03
MMD06
MMD01
MMD07
MMD01
MMD05
MMD00
MMD06
MMD02 MMD04
MMD03
MMD11
MMD09
MMD08
MMD12 MMD14
MMD13 MMD15
MMD10
MMWEn MMRASn
MMCASn
MMCLK
MMA0
MMA9
MMA6
MMA5 MMA7
MMA11
MMA8
MMA2
MMA10
MMA1
MMA4
MMA3
AIB6 AIB5 AIB3 AIB2 AIB1 AIB0
CR
AV1_CVBS
CB
CY
CR
CB
CY
SDA 3,4,5,7,8,11 SCL 3,4,5,7,8,11
VD_RSTn 5,7,11
AIG[0..7] 2,8
AV1_CVBS7 1CVBS_TV4,7
AV1_YC_C7
AIB0 2,8
AIB1 2,8
AIB2 2,8
AIB3 2,8
AIB5 2,8
AIB6 2,8
AV1_CVBS 7
AV1_YC_Y 7
1VD_CLK 8
CY 7
CB 7
CR7
CY7
CB7
CR 7
AV1_YC_C 7
AV1_YC_Y7
+5VS 1VDA331VA33
1VDPLL
1VDPLL
1VDPLL
1VA33
1VD33
+3V3S
1VD33
1VD25
1VD25
1VDPLL
+3V3S
1MDV33
+3V3
+2V5S
1MDV331MDV33
1MDV33
C567 100p
R514 100R R515 100R
R516 100R R517 100R R518 100R R519 100R
R520 100R
R246 56R
R247 56R
C378 47p/ESD
C379 47p/ESD
C380 47p/ESD
C381 47p/ESD
C377 330p
C376 330p
C375
330p
C374 330p
R260 18R
R261
18R
R262
18R
R263
18R
C314 330p
P113
S_TERMINAL
81
6 2
5/3
L151
3.3uH
TP22
C286 39n
C284 3n9
TP25
R245 56R
L149
3.3uH
C278 100n
C308100n
C307100n
R239 3K3
C315 330p
I116
T0956
43
50
44 45
49 51
52 53 54
58 59
42 48 57
47 56 61
46 55 60 62
63
64 67
69
70
68
65
66
40 39
41
32
29 28 27 26 25 24 23 22 19 18 17 16 30 31
11 12 13 14 15
8 7 6 5 4 3 2
1 126 125 124 123 122 121 120 119
109 110 111 112 113 114 115 116
99 100 101 102 103 104 105 106
89 90 91 92 93 94 95 96
86 85 84 83 82 81 80 71
73 72
77 76 75 74
35 36
10 34 79 98 118
21 88 108 128
9 33 78 97 117 20 87 107 127 37 38
RAin
GAin
Comp_Cr YC_C
SOGin Comp_Y
YC_Y CVBS1 CVBS2
BAin Comp_Cb
AVD1 AVD2 AVD3
AGND1 AGND2 AGND3
RmidBP GmidBP BmidBP REFBP
VD_PLL1
GND_PLL1 GND_PLL2
GND_PLLD
VD_PLLD
VD_PLL2
FILT
TPAD
SDA
SCL
RSTn
I2C_Addr
MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 BA0 BA1
MCLK WEn CASn RASn CSn
MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9 MD10 MD11 MD12 MD13 MD14 MD15
Rout7 Rout6 Rout5 Rout4 Rout3 Rout2 Rout1 Rout0
Gout7 Gout6 Gout5 Gout4 Gout3 Gout2 Gout1 Gout0
Bout7
Bout6 Bout5/Coast Bout4/Hsync Bout3/Clamp Bout2/CKext
Bout1/LLC
Bout0
Field VACTO HACTO Vsynco Hsynco
Vclko
Dvalid/ADC_HS
SOGout
Coast HSin
TTCCR/PCLK TTCCG/VS_PIP TTCCB/HS_PIP
TTCCFB/MCLKin
CLK40I
CLK40O
VDD33_1 VDD33_2 VDD33_3 VDD33_4 VDD33_5
VDD25_1 VDD25_2 VDD25_3 VDD25_4
VSS33_1 VSS33_2 VSS33_3 VSS33_4 VSS33_5 VSS25_1 VSS25_2 VSS25_3 VSS25_4
TESTen
TESTPIN
C279 100n C280 100n C281 100n
TP17
TP21
C262
100uF/16V
C305100n
L148 BEAD/200R
C303
100uF/16V
TP24
+
C298 470uF/16V
C312100n
C311100n
C306100n
TP18
C283
NC
TP23
C282 100n
C267 100n
TP19
X103
20MHz
C296 18p
C313100n
C304100n
R242 100R
TP16
TP20
R241 1M
C295 18p
R233 0R R235 0R
R234 0R
R243 100R
C310100n
L150 BEAD/200R
C294 100n
C309
100uF/16V
R232 0R
C268 100n
C274 100n
C269 100n
C275 100n
C288
47uF/16V
C290 100n
C289 100n
C266100n
C263100n
R237 47R
I115 M12L16161A
1
7 13 25
38 44
4 10 26 41 47 50
21 22 23 24 27 28 29 30 31 32 20 19
14 36
17 16 15 18 35 34
2 3 5 6 8 9 11 12
39 40 42 43 45 46 48 49
VCC VCC VCC VCC
VCC VCC
GND GND GND GND GND GND
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11
DQM0 DQM1
/RAS /CAS /WE /CS CLK CKE
D0 D1 D2 D3 D4 D5 D6 D7
D8
D9 D10 D11 D12 D13 D14 D15
R264
18R
R265
18R
C301100n
C264100n
C265100n
C293 100n
I117
LT1117-3V3
3 2
1
VI VO
ADJ
C291 100n
C270 100n
L143 0R
L142 0R
C299100n
C300100n
R244
56R
C292 100n
C276 100n
C271 100n C273 100n
R240 56R
P112 RCA JACK 2X2
1
2
3
4
5
6
L141 BEAD/600R
R236 0R
C382 330p
C383 330p
C384 47p/ESD
C385 47p/ESD
L146
3.3uH
C287 330p
C261100n
L144
3.3uH
L147
3.3uH
C302 330p
R231 10K
C297 330p
RP31 47RX4
1 5
2 6
3 7
4 8
RP30 47RX4 1 5
2 6
3 7
4 8
L145
3.3uH
C285 330p
R238 56R
6.6 Vidio Decoder 1
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
16
Page 18
B7-LLC2
B0-CREF B1-HREF B2-VREF B3-FIELD B5-HS B6-VS
2VDFD
2VDCLK
2VDVS BIB6
BIB3 BIB12VDHref
2VDHS BIB5
BIB22VDVref
2MCASn
2MRASn 2MWEn 2MCLK
2MA0
2MA9
2MA6
2MA5 2MA7
2MA11
2MA8
2MA2
2MA10
2MA1
2MA4
2MA3
2MD08 2MD10
2MD14
2MD11
2MD15
2MD12
2MD09
2MD13
2MD05
2MD02
2MD07
2MD04
2MD00
2MD03
2MD06
2MD01
2MD07
2MD01
2MD05
2MD00
2MD06
2MD02 2MD04
2MD03
2MD11
2MD09
2MD08
2MD12 2MD14
2MD13 2MD15
2MD10
2MWEn 2MRASn
2MCASn
2MCLK
2MA0
2MA9
2MA6
2MA5 2MA7
2MA11
2MA8
2MA2
2MA10
2MA1
2MA4
2MA3
BIB6 BIB5 BIB3 BIB2 BIB1 BIB0
CR
CB
BIG6 BIG5
BIG0
BIG1
BIG2
BIG4 BIG3
BIG7
CY
SDA 3,4,5,6,8,11 SCL 3,4,5,6,8,11
VD_RSTn 5,6,11
AV1_CVBS6 1CVBS_TV4,6
AV1_YC_Y6
AV1_YC_C6
BIB0 3,8
BIB1 3,8,11
BIB2 3,8,11
BIB3 3,8,11
BIB5 3,8,11
BIB6 3,8,11CR6
CY6
CB6
BIG[0..7] 3,8,11
2VD_CLK 8
+5VS 2VDA332VA33
2VDPLL
2VDPLL
2VDPLL
2VD33
+3V3S2VD33
2VD25
2VD33
2VDPLL
2MDV33
+3V3
+2V5S
2MDV332MDV33
2MDV33
2VD25
+3V3S
2VA33
C568 NC
TP35
TP34
+
C350 NC
C359NC
TP32
I118 NC
43
50
44 45
49 51
52 53 54
58 59
42 48 57
47 56 61
46 55 60 62
63
64 67
69
70
68
65
66
40 39
41
32
29 28 27 26 25 24 23 22 19 18 17 16 30 31
11 12 13 14 15
8 7 6 5 4 3 2
1 126 125 124 123 122 121 120 119
109 110 111 112 113 114 115 116
99 100 101 102 103 104 105 106
89 90 91 92 93 94 95 96
86 85 84 83 82 81 80 71
73 72
77 76 75 74
35 36
10 34 79 98 118
21 88 108 128
9 33 78 97 117 20 87 107 127 37 38
RAin
GAin
AD2A AD2B
SOGin AD1A
AD1B AD1C AD1D
BAin AD3A
AVD1 AVD2 AVD3
AGND1 AGND2 AGND3
RmidBP GmidBP BmidBP REFBP
VD_PLL1
GND_PLL1 GND_PLL2
GND_PLLD
VD_PLLD
VD_PLL2
FILT
TPAD
SDA SCL
RSTn
I2C_Addr
MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 BA0 BA1
MCLK WEn CASn RASn CSn
MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9 MD10 MD11 MD12 MD13 MD14 MD15
Rout7/AD2_7 Rout6/AD2_6 Rout5/AD2_5 Rout4/AD2_4 Rout3/AD2_3 Rout2/AD2_2 Rout1/AD2_1 Rout0/AD2_0
Gout7/AD1_7 Gout6/AD1_6 Gout5/AD1_5 Gout4/AD1_4 Gout3/AD1_3 Gout2/AD1_2 Gout1/AD1_1 Gout0/AD1_0
Bout7/AD3_7 Bout6/AD3_6 Bout5/AD3_5 Bout4/AD3_4 Bout3/AD3_3 Bout2/AD3_2 Bout1/AD3_1 Bout0/AD3_0
Field
VACTO/FB
HACTO
Vsynco Hsynco VCLKo
ADC_HS/VBI_D
SOGout/TTCCLK
Coast HSin
TTCCR/PCLK TTCCG/VS_PIP TTCCB/HS_PIP
TTCCFB/FID_PIP
CLK20I
CLK20O
VDD33_1 VDD33_2 VDD33_3 VDD33_4 VDD33_5
VDD25_1 VDD25_2 VDD25_3 VDD25_4
VSS33_1 VSS33_2 VSS33_3 VSS33_4 VSS33_5 VSS25_1 VSS25_2 VSS25_3 VSS25_4
TESTen
TESTPIN
C340 NC
C339 NC
C358NC
R255 NC
C336 NC
C335 NC
C334 NC
C322 NC
C337 NC
TP27
TP31
C316
NC
C356NC
L155 NC
C354
NC
C355NC
C360
NC
C361NC
TP26
C357NC
R258 NC
R257 NC
C363NC
C362NC
C338 NC
R256 NC
C348 NC
TP33
R249 NC
TP30
TP29
TP28
R250 NC R252 NC
R251 NC
R254 NC
I120 NC
1
7 13 25
38 44
4 10 26 41 47 50
21 22 23 24 27 28 29 30 31 32 20 19
14 36
17 16 15 18 35 34
2 3 5 6 8 9 11 12
39 40 42 43 45 46 48 49
VCC VCC VCC VCC
VCC VCC
GND GND GND GND GND GND
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11
DQM0 DQM1
/RAS /CAS /WE /CS CLK CKE
D0 D1 D2 D3 D4 D5 D6 D7
D8
D9 D10 D11 D12 D13 D14 D15
X104
NC
C349 NC
C364NC
C330 NC
C328 NC
C344 NC
C341
NC
C343 NC
C320NC
C324 NC
C329 NC
I119
NC
3 2
1
VI VO
ADJ
C323 NC
L152 NC
C345 NC
C353NC
C319NC
L154 NC
C342 NC
R527 NC
R526 NC
R525 NC
R524 NC
R523 NC
R522 NC
R521 NC
C347NCC346
NC
R253 NC
C351NC
C352NC
L153 NC
C331 NC
C321NC
C318NC
C317NC
L156 NC
C333 NC
C325 NC
C326 NC
RP33 NC
1 5
2 6
3 7
4 8
RP32 NC 1 5
2 6
3 7
4 8
R248 NC
6.7 Vidio Decoder 2
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
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Page 19
INPUT_A/B & HMD OUTPUT STAGE MEMORY INTERFACE & OSD
POWER SECTION
PHDCLK
PDE
ZXO
PHSYNC
PVSYNC
PRA6
PRA7
PRA3
PRA5 PRA4
PRA1
PRA2 PRA0
PGA1
PGA2
PGA6
PGA0
PGA3
PGA5 PGA4
PGA7
PBA0
PBA3 PBA2
PBA5
PBA6
PBA7
PBA1
PBA4
ZXI
TTfc-INTn
AIG7 AIG6 AIG5 AIG4
AIG0
AIG1
AIG3 AIG2
BIB3
BIB4
BIG4
BIG5
BIB1
BIB5
BIB7
BIG2
BIB2
BIB6
BIG0
BIG1
BIG3
BIB0
BIR0
BIR1
BIR6
BIR7 BIR5 BIR3
BIR2
BIR4
BIG6
BIG7
MD75
MD74
MD73
MD71
MCLK
MCASn MRASn
MWEn
MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10
MA12
MA11
MCASn
MCLK
MWEn MRASn
MA0 MA1 MA2 MA3
MA5 MA7
MA4 MA6
MA10
MA9
MA8
MA11 MA12
MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9
MD11
MD10 MD12
MD13 MD14 MD15
MD17
MD16 MD18
MD19 MD20 MD21
MD23
MD22
MD26
MD29
MD24 MD25
MD27 MD28
MD30 MD31
MD32 MD33 MD34 MD35
MD37
MD36
MD42
MD40
MD38
MD43
MD39 MD41
MD47 MD48
MD46
MD45
MD44
MD49
MD52
MD55
MD50 MD51
MD53 MD54
MD57
MD56
MD60
MD58
MD61
MD59
MD63
MD62
PWM7
PD32 NF4
MA7
MA5
MA9
MA6
MA12
MA8
MA0 MA1 MA2 MA3 MA4
MA10 MA11
MRASn MCASn MWEn MCLK
MD65 MD66 MD67 MD68 MD69 MD70 MD72
MD64 MD76
MD39
MD47 MD45
MD40
MD48
MD41
MD46
MD49
MD43 MD42
MD44
MD38 MD37 MD36
MD62
MD56
MD50
MD60
MD61
MD58
MD52
MD57
MD51
MD63
MD54 MD53
MD59
MD55
MD20
MD14
MD18
MD19
MD16
MD10
MD15
MD21
MD12 MD11
MD17
MD13
MD29
MD24
MD34
MD22
MD31
MD23
MD32
MD27 MD25
MD30
MD33
MD26
MD35
MD28
MD1
MD5
MD8
MD3 MD2
MD9 MD7
MD6
MD0
MD4
MD77 MD78 MD79 MD80 MD81 MD82 MD83 MD84 MD85 MD86 MD87 MD88 MD89
MD91
MD90
MD95
MD92 MD94
MD93
HD_COAST
JP7 JP6 JP5 JP4
JP2
JP3
JP0
JP1
MA13
AIB3
AIB5
AIB6
AIB0
AIB1
AIB2
RGHSA
COASTA
RGHSA
COASTA
AIB4
AIB7
AIR7 AIR6 AIR5 AIR4
AIR0
AIR1
AIR3 AIR2
NE5PD22 ND7MOTION
MD67
MD79
MWEn
MA2
MA5
MA8
MD87
MD83
MD64 MD65
MD68
MD90
MD74 MD76
MCLK
MD70
MD85
MA11
MCASn
MA3
MA9
MD69
MD81
MA4
MA10
MD89
MD88
MA0
MD73
MD93
MD82
MD77
MD71
MD66
MD86
MD92
MD72
MRASn
MD80
MD94
MA6
MD84
MD91
MD75
MD95
MA12
MA1
MA7
MD78
MDQM
SDA3,4,5,6,7,11
PDE 9 PVSYNC 9 PHSYNC 9
PHDPDP11
PRA[0..7] 9
PGA[0..7] 9
PBA[0..7] 9
PHDPWM01
SCL3,4,5,6,7,11
TTfc-RSTn11
TTfc-INTn 11
AIG[0..7]2,6
BIR[0..7]3
BIB[0..7]3,7,11
BIG[0..7]3,7,11
PCLK 9
HDTV_HS3
HDTV_CLK3
HDTV_CS 3
HD_RGHS 3
HD_COAST 3
GHSYNC 3
GVSYNC 3
1VD_CLK6
JPHS11
JPHREF11
JPCLK11
JP[0..7]11
DVI_DE2
DVI_CLK2
DVI_HS 2
DVI_VS 2
AIB[0..7]2,6
AIR[0..7]2
2VD_CLK7
JPCK11
2VD_CLK7
+3V3
VDDAM
+2V5
+2V5
+2V5+2V5
VDDAM
+3V3D
+3V3D
+3V3D
+3V3D
+3V3D
+3V3
+3V3D
+3V3D
+3V3
+2V5
+3V3D
+3V3
VCCV
VDDAP
VDDAP
+3V3D
+3V3D
+3V3D
+3V3D
+3V3D
+3V3D
PD42 TP9
R368 100R
PD42 TP5
X105
14.318MHz
C409 33p
R376 1M
R366 NC
R381 0R
C408 33p
C430 100n
C425 100n
C420 100n
C428 100n
C416
100n
R369 100R
PD32
TP3
PD22 TP4
C415 100n
C412 100n
C422 100n
C419 100n
C429 100n
C421 100n
C427 100n
C423 100n
C426 100n
C414 100n
C417 100n
C413 100n
C424 100n
C434
100uF/16V
C432
100uF/16V
I125
SDRAM2MX32-TSOP86
1 15
16 71
19
18
17
20 68
67
2 4 5 7 8 10 11 13 74 76 77 79 80 82 83 85
25 26 27 60 61 62 63 64 65 66 24
6
52 46 38 32 12
31 33 34 36 37 39 40 42 45 47 48 50 51 53 54 56
28 59
22 23
29 43
3 9 35 41 49 55 75 81
78
84
86
72
58
44
VDD VDD
DQM0 DQM1
/RAS
/CAS
/WE
/CS CLK
CKE
D0 D1 D2 D3 D4 D5 D6 D7 D8
D9 D10 D11 D12 D13 D14 D15
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
VSSQ
VSSQ VSSQ VSSQ VSSQ VSSQ
D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31
DQM2 DQM3
BA0 BA1
VDD VDD
VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ
VSSQ
VSSQ
VSS
VSS
VSS
VSS
I126
SDRAM2MX32-TSOP86
1 15
16 71
19
18
17
20 68
67
2 4 5 7 8 10 11 13 74 76 77 79 80 82 83 85
25 26 27 60 61 62 63 64 65 66 24
6
52 46 38 32 12
31 33 34 36 37 39 40 42 45 47 48 50 51 53 54 56
28 59
22 23
29 43
3 9 35 41 49 55 75 81
78
84
86
72
58
44
VDD VDD
DQM0 DQM1
/RAS
/CAS
/WE
/CS CLK
CKE
D0 D1 D2 D3 D4 D5 D6 D7 D8
D9 D10 D11 D12 D13 D14 D15
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
VSSQ
VSSQ VSSQ VSSQ VSSQ VSSQ
D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31
DQM2 DQM3
BA0 BA1
VDD VDD
VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ
VSSQ
VSSQ
VSS
VSS
VSS
VSS
R382 47R
L168 BEAD/200R L169 BEAD/200R
C433 100n
C411 100n
C418
100n
C451 100n
C449 100n
C453 100n
C459 100n
C457 100n
L167 BEAD/200R
C435 100n
L166 BEAD/200R
C462 100n
C456 100n
C452 100n
C450 100n
C454 100n
C410 NC
C473 100n
C472
100uF/16V
C460 100n
C470 100n
C463 100n
C461 100n
C465 100n
C455 100n
C448 100n
C458 100n
C471 100n
C464 100n
R386 0R
C467 100n
R383 47R
I127 LM1084/2V5/T0263
3 2
1
VI VO
ADJ
R385 NC
C468 100n
C469 100n
C447 470uF/16V
C466 100n
TP TP6
R367 4K7
EXTPCLK TP8
R374
0R
I124
SDRAM2MX32-TSOP86
1 15
16 71
19
18
17
20 68
67
2 4 5 7 8 10 11 13 74 76 77 79 80 82 83 85
25 26 27 60 61 62 63 64 65 66 24
6
52 46 38 32 12
31 33 34 36 37 39 40 42 45 47 48 50 51 53 54 56
28 59
22 23
29 43
3 9 35 41 49 55 75 81
78
84
86
72
58
44
VDD VDD
DQM0 DQM1
/RAS
/CAS
/WE
/CS CLK
CKE
D0 D1 D2 D3 D4 D5 D6 D7 D8
D9 D10 D11 D12 D13 D14 D15
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10
VSSQ
VSSQ VSSQ VSSQ VSSQ VSSQ
D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31
DQM2 DQM3
BA0 BA1
VDD VDD
VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ
VSSQ
VSSQ
VSS
VSS
VSS
VSS
C446 100n
C445 100n
C444 100n
R370 NC
INPUT A PORTINPUT B PORT
HMD AHMD B
HMD
Interrupt
INPUT CONTROL
INPUT
OVERLAY
PORT
V/Pr portY/Py portU/Pb port
U/Pb port Y/Py port V/Pr portABC
I123A t0932
Y5
W5
V5 U5
Y4
W4
V4
Y3
V10
Y9
W9
V9 U9
Y8
W8
V8
Y15 U14 V14
W14
Y14 V13
W13
Y13
W3
U4 U3
Y2
V17
W17
U17
U8
Y7
W7
V7 U7
Y6
W6
V6
V12
W12
Y12 V11
W11
Y11 Y10
W10
Y17 U16 V16
W16
Y16 U15 V15
W15
Y19
T16 U18
Y20 W18
R16 P16 V18
W19 Y18
K3
U1 T5
U2
V20
V19
U19
W20
IARED7 IARED6 IARED5 IARED4 IARED3 IARED2 IARED1 IARED0
IAGRN7 IAGRN6 IAGRN5 IAGRN4 IAGRN3 IAGRN2 IAGRN1 IAGRN0
IABLU7 IABLU6 IABLU5 IABLU4 IABLU3 IABLU2 IABLU1 IABLU0
IACLK/LLC IADE IAVS IAHS
IBCLK/LLC IBVS IBHS
IBRED7 IBRED6 IBRED5 IBRED4 IBRED3 IBRED2 IBRED1 IBRED0
IBGRN7 IBGRN6 IBGRN5 IBGRN4 IBGRN3 IBGRN2 IBGRN1 IBGRN0
IBBLU7 IBBLU6 IBBLU5 IBBLU4 IBBLU3 IBBLU2 IBBLU1 IBBLU0
CSYNCA
VGAVSA VGAHSA
COASTA
RGHSA
VGAVSB VGAHSB CSYNCB
COASTB
RGHSB
IRQn
ICCLK/LLC ICHS
ICVS
IOVR/MDQ74
IOVG/MDQ73
IOVB/MDQ71
IOVFB/MDQ75
PANEL INTERFACE
CONTROLSTATUS/PWM
CLOCK
GENERATOR
V/Pr portY/Py portU/Pv port
U/Pv port Y/Py port V/Pr port
I123C t0932
G19 G20 H18 H19 H20 J18 J19 J20
K18 K19 K20 L20 L19 L18 M20 M19
M18 N20 N19 N18 P20 P19 P18 R20
B15 C15 D15 A16 B16 C16 D16 A17
B17 C17 A18 B18 A19 A20 B19 B20
C18 C19 C20 D17 D18 D19 D20 E17
F20
E20 F17 F18 E19
J3 K4
L4
M4
B13
A15 C14
G4 H4
J4 E18 F19
R5
F4
E5
D7
Y1
W2
L3
H3
PARED7 PARED6 PARED5 PARED4 PARED3 PARED2 PARED1 PARED0
PAGRN7 PAGRN6 PAGRN5 PAGRN4 PAGRN3 PAGRN2 PAGRN1 PAGRN0
PABLU7 PABLU6 PABLU5 PABLU4 PABLU3 PABLU2 PABLU1 PABLU0
PBRED7 PBRED6 PBRED5 PBRED4 PBRED3 PBRED2 PBRED1 PBRED0
PBGRN7 PBGRN6 PBGRN5 PBGRN4 PBGRN3 PBGRN2 PBGRN1 PBGRN0
PBBLU7 PBBLU6 PBBLU5 PBBLU4 PBBLU3 PBBLU2 PBBLU1 PBBLU0
PCLKI
PDE
PVS
PHS
PCLK
RSTn SDA
SCL
POWERPD
IICADDR
PWM7/DQM PWM6/V_DIFF PWM5/Motion PWM4/M_LED PWM3/BE_LED PWM2 PWM1 PWM0
PD32 PD22 MOTION
XtalO
XtalI
TESTAP TESTSP
C436 100uF/16V
C440 100n
C439 100n
C438 100n
C437 100n
JPEG PORT
MEMORY INTERFACE
External
OSD port
I123B t0932
N17 M17 L17 K17 J17 H17 G17 F16
G18
E16 P17
C12
B12
A12
C11
B11
A11
A10
B10
C10
A9
B9
C9
A8
B8
T4 T3 T2 T1 R4 R3 R2 R1 P3 P2 P1 N4 N3 N2 N1 M3 M2 M1 L2 L1 K1 K2 J1 J2 H1 H2 G1 G2 G3 F1 F2 F3 E1 E2 E3 E4 D1 D2 D3 C1 C2 B1 A1 B2 A2 C3 B3 A3 D4 C4 B4 A4 D5 C5 B5 A5 D6 C6 B6 A6 C7 B7 A7 C8A13
B14
A14
C13
R17 R18
T20 U20
T19
T18
T17
R19
E6 E7 E8
E9 E10 E11 E12 E13 E14 E15
T6
T7
T8
T9 T10 T11 T12 T13 T14 T15
P4
JP7 JP6 JP5 JP4 JP3 JP2 JP1 JP0
JPCLK
JPHS JPHREF
MADDR13
MADDR12
MADDR11
MADDR10
MADDR09
MADDR08
MADDR07
MADDR06
MADDR05
MADDR04
MADDR03
MADDR02
MADDR01
MADDR00
MDQ63 MDQ62 MDQ61 MDQ60 MDQ59 MDQ58 MDQ57 MDQ56 MDQ55 MDQ54 MDQ53 MDQ52 MDQ51 MDQ50 MDQ49 MDQ48 MDQ47 MDQ46 MDQ45 MDQ44 MDQ43 MDQ42 MDQ41 MDQ40 MDQ39 MDQ38 MDQ37 MDQ36 MDQ35 MDQ34 MDQ33 MDQ32 MDQ31 MDQ30 MDQ29 MDQ28 MDQ27 MDQ26 MDQ25 MDQ24 MDQ23 MDQ22 MDQ21 MDQ20 MDQ19 MDQ18 MDQ17 MDQ16 MDQ15 MDQ14 MDQ13 MDQ12 MDQ11 MDQ10
MDQ9 MDQ8 MDQ7 MDQ6 MDQ5 MDQ4 MDQ3 MDQ2 MDQ1 MDQ0MCLK
MWEN
MCASn
MRASn
OVR/MDQ65 OVG/MDQ66
OVB/MDQ70 OVI/MDQ72
OVFB/MDQ69
OVS/MDQ68
OHS/MDQ67
OVCLK
MDQ76 MDQ77 MDQ78 MDQ79 MDQ80 MDQ81 MDQ82 MDQ83 MDQ84 MDQ85 MDQ86 MDQ87 MDQ88 MDQ89 MDQ90 MDQ91 MDQ92 MDQ93 MDQ94 MDQ95
SDAO/MDQ64
POWER SECTION
I123D
t0932
F5H5K5M5P5U6D8
D10
U11
D12
U13
D14
G16
J16
L16
N16G5J5L5N5D9U10
D11
U12
D13
H16
K16
M16V2W1
V1
V3
H8H9H10
H11
H12
H13J8J9
J10
J11
J12
J13K8K9
K10
K11
K12
K13L8L9
L10
L11
L12
L13M8M9
M10
M11
M12
M13N8N9
N10
N11
N12
N13
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD25
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDDAM
VDDAP
VSSAM
VSSAP
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
R371 NC
PD9 TP7
C431 470uF/16V
R378 47R
C443 100n
C442 100n
C441 100n
R379 NC R380 0R
R377 47R
C562
100uF/16V
TP11
TP10
TP13
TP12
TP15
TP14
C558 100n
C554 100n
C560 100n
C559 100n
6.8 Scalar/Sdram
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
18
Page 20
CMO 27" PANEL INTERFACE ONLY
AU 26" OR H_STAR 23" PANEL INTERFACE ONLY
R498~R504 CMO 23" AND 32" USE ONLY
ATX2+
ATX1-
FFD_DE FFD_CLK
ATX3+
FFD_HS
ATX0-
ACLKTX+
ATX1+
FFD_VS
ATX0+
ATX3-
LVDSSHT
ATX2-
ATX0-
ATX0+
ATX1+ ATX1-
ATX2-
ATX2+
ATX3-
ATX3+
ACLKTX-
ACLKTX+
PGA2
PBA0
PGA0
PRA6
FFDBA5
FFDRA2
FFDGA5
PGA2
PRA0
FFDGA2
PRA5
PRA1
FFDBA7
PBA0
PRA0
FFDBA6
PGA6
PGA7
FFDGA3
PBA7
FFDRA6
PRA2
FFDBA2
FFDGA7
PGA3
PBA1
FFDRA1
PGA4
PBA4
PRA7 PRA7
PBA2
PBA6
PRA3
FFD_CLK
PVSYNC
PBA3
FFDBA4
PRA4
PBA3
PGA3
PBA4
PGA1
FFDGA4
FFDRA5
FFDGA1
FFD_VS
FFDRA4
PHSYNC
PGA4
PRA5
PGA6
PDE
PGA5
PBA6
PRA1
PGA7
PRA3
FFDGA6
FFDBA1
FFDRA3
DCLKI
PRA6
FFDRA7
FFDGA0
PBA2
PBA5
FFD_HS
PGA1
PGA5
PBA5
PRA2
FFDRA0
PBA1
PRA4
PGA0
FFDBA3
PBA7
FFDBA0
FFD_DE
FFDBA3
FFDBA2
FFDBA1
FFDBA0
FFDBA7
FFDBA5
FFDBA4
FFDBA6
FFDGA0
FFDGA1
FFDGA3
FFDGA2
FFDGA5
FFDGA6
FFDGA4
FFDGA7
FFDRA3
FFDRA2
FFDRA1
FFDRA0
FFDRA7
FFDRA5
FFDRA6
FFDRA4
FFDBA6
FFDRA4
FFDGA2
FFDGA1
FFDRA7
FFDBA2
FFDBA0
FFDGA6
FFDRA6
FFDBA3
FFDGA7 FFDGA0
FFDGA5
FFDBA1
FFDBA4
FFDGA4
FFDRA3
FFDRA2
FFDBA7
FFDRA5
FFDBA5
FFDGA3
FFDRA1
FFDRA0
IN2+
IN1-
FFD_DE FFD_CLK
IN3+
FFD_HS
IN0-
CLK­CLK+
IN1+
FFD_VS
IN0+
IN3-
LVDSVCCA
PLLVCCA
IN2-
FFDBA6
FFDRA4
FFDGA2
FFDGA1
FFDRA7
FFDBA2
FFDBA0
FFDGA6
FFDRA6
FFDBA3
FFDGA7 FFDGA0
FFDGA5
FFDBA1
FFDBA4
FFDGA4
FFDRA3
FFDRA2
FFDBA7
FFDRA5
FFDBA5
FFDGA3
FFDRA1
FFDRA0
LVDSSHT
DCLKI
IN0­IN0+
IN1­IN1+
IN2­IN2+
CLK­CLK+
IN3­IN3+
PLLVCCA
LVDSVCCA
ACLKTX-
PRA[0..7]8
PGA[0..7]8
PBA[0..7]8
PHSYNC8
PCLK8
PDE8
PVSYNC8
LVDSPDN 11
LVDSPDN 11
Vpnl
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3
Vpnl
+3V3
+3V3R393 22R
R397
0R
CP04
NC
C478 47uF/16V
C480 47uF/16V
C479 100n
L170
BEAD/200R
C481
100n
L171
BEAD/200R
CP05
NC
CP06
NC
R396 100R
I129
NC
51 52 54 55 56
2
3
4 6 7
8
10
11 12 14
15
16 18
19 20 22
31
32 48
47 46 45 42 41
40 39
44 49
43 36
34 35
33
5
13
21
29
53
1917
26
50
23 24
25 27 28 30
38 37
TXIN0 TXIN1 TXIN2 TXIN3 TXIN4
TXIN5
TXIN6
TXIN7 TXIN8 TXIN9
TXIN10 TXIN11
TXIN12 TXIN13 TXIN14
TXIN15
TXIN16 TXIN17
TXIN18 TXIN19 TXIN20
TXCLKIN
PWRDWN
TXOUT0-
TXOUT0+
TXOUT1-
TXOUT1+
TXOUT2-
TXOUT2+
TXCLKOUT-
TXCLKOUT+
LVDSVCC
LVDSGND LVDSGND LVDSGND
PLLVCC
PLLGND PLLGND
GND
GND
GND
GND
GND
VVV
V
TXIN27
TXIN21 TXIN22
TXIN23 TXIN24 TXIN25 TXIN26
TXOUT3-
TXOUT3+
R395
10K
R498
NC/0R
R504 NC
R503 NC
R502 NC/4.7K
R501
NC/0RR
R500
NC/0R
R499
NC
C487100n
C489100n
C490100n
C488100n
R389
0R
CP03
NC
RP23 47RX4
1 5
2 6
3 7
4 8
RP18 47RX4
1 5
2 6
3 7
4 8
RP19 47RX4
1 5
2 6
3 7
4 8
RP20 47RX4
1 5
2 6
3 7
4 8
RP21 47RX4
1 5
2 6
3 7
4 8
RP22 47RX4
1 5
2 6
3 7
4 8
R394 0R
L173 BEAD/200R
C483 47uF/16V
C482NC
C484 100n
CP01
NC
R390 0R R391 0R R392 0R
C485 47uF/16V
C486
100n
L172
BEAD/200R
I128
t0383
51 52 54 55 56
2
3
4 6 7
8
10
11 12 14
15
16 18
19 20 22
31
32 48
47 46 45 42 41
40 39
44 49
43 36
34 35
33
5
13
21
29
53
1917
26
50
23 24
25 27 28 30
38 37
TXIN0 TXIN1 TXIN2 TXIN3 TXIN4
TXIN5
TXIN6
TXIN7 TXIN8 TXIN9
TXIN10 TXIN11
TXIN12 TXIN13 TXIN14
TXIN15
TXIN16 TXIN17
TXIN18 TXIN19 TXIN20
TXCLKIN
PWRDWN
TXOUT0-
TXOUT0+
TXOUT1-
TXOUT1+
TXOUT2-
TXOUT2+
TXCLKOUT­TXCLKOUT+
LVDSVCC LVDSGND
LVDSGND LVDSGND
PLLVCC
PLLGND PLLGND
GND
GND
GND
GND
GND
VVV
V
TXIN27
TXIN21 TXIN22
TXIN23 TXIN24 TXIN25 TXIN26
TXOUT3-
TXOUT3+
C477100n
R388 0R
C476100n
CP02
NC
C474100n
C475100n
R387
10K
P114
CON 2X15 2mm
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
P115
NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
6.9 Panel Output
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
19
Page 21
SP_R_OUTP
SP_L_OUTN SP_R_OUTN
SP_L_OUTP
AUDIO_R_AMP
AUDIO_L_AMP
AUDIO_R_AMP AMP_STBY
AUDIO_L_AMP
MODE
MODE
AUDIO_L_AMP5
AUDIO_R_AMP5
AMP_STBY11
SCL SDA
AMPPVCC
AMPPVCC
AMPPVCC
AMPPVCC
AGND
+12V
AGND
AGND
AGND
VCCV
AGND
AGND AGND
AGND
VCCV
R507
4.7K
Q109
MMBT3904
1
3
2
R506 0R
R505 0R
R508
1K
P123
CON9
1 2 3 4 5 6 7 8 9
C573330p
C572330p
P117
PHONE_JACK
5
4
3
2
1
R401 NC
C516 NC
C526
47uF/16V
C512 NC
C511 NC
R412 10K
C506 NC
C495
NC
C500 NC
L174 NC
R413 10K
C498 NC
R404 NC
R402 NC
C504
NC
C499 NC
C513
NC
C496
NC
L178 NC
C509 NC
L177
NC
R4141K
L175
NC
L176
NC
C503
NC
C521 NC
R400 NC
C502
NC
C510 NC
R411 68K
C501
NC
R405
NC
C497
NC
R4151K
R403 NC
C520
1u/16V 0603
R410 10K
C514
NC
P116
NC
1 2 3 4
R409 NC
R398 NC
C522
NC
R408 NC
C519
1u/16V 0603
C524
47uF/16V
R416 68K
I131
TPA6110A2
1
23
4
5
6
7
8
BYPASS
GNDSTANDBY
IN2
VO2
VDD
VO1
IN1
C525
1u/16V 0603
C518 10uf/50V
+
C493 NC
C515 NC
R406
NC
C491 NC
C505 NC
R407 NC
R399 NC
I130
NC
1
2
3
4
5
6
7 8
9
10
11
12
13 14 15 16 17
18 19
20 21
24
22 23
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
SDZ
R_INN
R_INP
V2P5
L_INP
L_INN
AVDDref Vref
VARDIFF VARMAX
VOL
REFGND
BSLN PVCCL PVCCL
L_OUTN L_OUTN
PGNDL PGNDL
L_OUTP L_OUTP
BSLP
PVCCL PVCCL
VCLAMPL
AGND
ROSC
COSC
AVDD
AGND
VAROUTL
VAROUTR
AVCC
MODE
MODEB
VCLAMPR
BSRP
PVCCR
PVCCR
R_OUTP
R_OUTP
PGNDR
PGNDR
R_OUTN
R_OUTN
PVCCR
PVCCR
BSRN
C517 NC
C508 NC
C507 NC
C523
470n
C494 NC
C492 NC
R513
4.7K
R442
0R
6.10 Audio Phone Jack
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
20
Page 22
IIC TESTER
ISP
Reserved for external photoframe daughter board
Reserved for pixel based OSD
Reserved for 128K ISP74AHC00D is reserved for pixel OSD with JPEG module exist at same time
KEY DEFINE CHANG TO JEAN
B1-HREF B2-VREF B3-FIELD B5-HS B6-VS
Reserved for 128K ISP
BOARD BOTTOMBOARD TOP
Debug Port MCU Reset
Change nets
A7
A5
A0
A4
A1 A2 A3
A6
A13
A8
A12
A10
A9
A14
A11
ISPWR PSEN
D5 D6
D4
D7
D0 D1
D3
D2
A15
SCL SDA
EEWPn
JP7
JP4
A14 A15
PSEN
CDRDY
CDRDRE
JP6
JP3
CDCS1ALE
RESETn-C
CDA0WP
JP0
A8
CDRWRE
A6
A9 A10 A11 A12 A13
A0 A1
A4 A5
D5
JP5
CDCS0CLE
A3
CDA1CE0
A2
D0 D1 D2 D3 D4
D6 D7
A7
JP_RxD
CDA1CE1
JP2
JP1
MCUXout
ALE
EAN
USBD-
USBD+
TTfc-RSTn
LED2
LED1
PANELPWR
JP_TxD BACKLITn
TTFC-INTn IR_INT
PHDPDP
ISPWR
EEWPn
SCL SDA
JP_RDY
ISP_SW BANK_SEL
MCUXin
JP_RxD
P25_INC
P24_DEC P23_DOWN
LED2
P21_ENTER
P22_UP
LED1
IR_INT
P26_MENU
P27_POWERSW
P26_MENU
P22_UP P24_DEC
P23_DOWN P25_INC
JP1JPD1
JP6
JP3
JPD7 JP7
JPD2
JP0
JPD4
JPD3
JPD0
JP5
JPD6
JP2 JP4
JPD5
CDA1CE1
SCL SDA
ISP_SW
CDRWRE
JP_PX_sel
JPCLKin
JP_PX_sel
CDRWRE
LED_G LED_R
P21_ENTER
JP_RDY
JPD1
BIG5
BIB2
JPCLKin
JPD5 JPD3
JPHS
JPD2
BIG0
BIG3
BIB3
JPD6
JPHREF
BIG6
JPD7 BIG7
BIB5
BIB1
JPD0
BIB6
BIG1
JPHS
JPD4 BIG4
BIG2
CDA1CE0
CDRDY
CDCS1ALE
JP4
CDRWRE
CDRDRE
CDCS0CLE
CDA0WP
JP0
JP1
JP5
JP3
JP7
JP2
JP6
DMINUSUSBD-
USBD+ DPLUS
P27_POWERSW
D1 D2
A4
D3
D0
A1
D4
A3
A6 A5
D7
D5
A0
D6
A12
A15
BANK_SEL
A7
A2
A11
ALE
MCUXin
A14
A9
A8
ISPWR
A10
A13
RESETn-C
JP_RxD
JP_TxD
PSEN
RESETn-C
JSPI_CS
JSPI_CLK JSPI_REQ
JSPI_REQ
JP_RDY
VD_RSTn
JPHS
SDA JP_DET
JP_RST
JPD0 JPD4
JSPI_CLK
JPD2 JPD6
JP_PX_sel
JP_TxD
JPCLKin
JPHREF
JPD5
JP_RxD
JPHOST_HS
JPD3
JPD1
SCL
JPD7
JPVS
JSPI_CS
ISP_SW
JPVS
JSPI_CLK
SCL
P22_UP
P25_RIGHT
P23_DOWN
JP_TxD
AF_SEL0
P24_LEFT
AF_SEL1
BACKLITn
P21_AUTO
P26_MENU
LVDSPDN
SDA
VD_RSTn
P20_AVSEL
LED1
PANELPWR
P27_POWERSW
IR_INT
EEWPn
JP_RxDTTFC-RSTN
LED2
JSPI_REQ
AF_SEL1
PANELPWR AF_SEL0
RESETp-C
JP_TxD
VD_RSTn
AMP_STBY
BANK_SEL
TVM_PWRp
SYS_PD
PANELPWR 1 BACKLITn 1
PHDPDP 8
TTfc-INTn 8
LVDSPDN 9
SDA 3,4,5,6,7,8
SCL 3,4,5,6,7,8
USBDM 3 USBDP 3
DDCSDA3
DDCSCL3
JP[0..7] 8
JPCLK 8
JPHREF 8
HD_SEL 3
VGA_DET 3
AF_SEL0 4
DVI_PDn 2
DVI_SCDT 2
DVI_DET2
AF_SEL1 4 AMP_STBY 10
BIG[0..7] 3,7,8
BIB[0..7] 3,7,8
JPCK 8
JPHS8
PANELPWR 1
SCL3,4,5,6,7,8
PHDPDP 8
VD_RSTn 5,6,7
BACKLITn 1
SDA3,4,5,6,7,8
HD_SEL3
AF_SEL0 4
LVDSPDN 9
TTfc-RSTn8
AF_SEL1 4
DVI_PDn2
DVI_SCDT2
TTfc-RSTn 8
TVM_PWRp 1
SYS_PD 1
TVM_PWRp 1
SYS_PD 1
+3V3
+3V3
+3V3
+3V3
+3V3
+3V3MC
+3V3MC
+3V3MC
+3V3MC
VCC
VCC
+3V3MC+3V3MC
+3V3
+3V3
+3V3
+3V3
+3V3MC
+3V3
+3V3
+3V3MC
+3V3
VCC
VMCU
VMCU
VCC
VMCU
VCC +3V3MC
+3V3MC +3V3MC
VMCU
R421 NC/10K
R423 NC
R426 NC
R433 NC
I137
24LC16/SO8
1 2 3 4 5
6
7
8
PRE E1 E2 VSS SDA
SCL
/WC
VCC
C546
NC
R424 0R R427 100R
R425 100R
C543 100n
R4184K7
USB MMC MP3
ROM/ICE CONNECTION PORT
CF / SM CARD INTERFACE
GENERAL PURPOSE PORT
I133
NC
7 8 9 10 11 12 13 14
40 41 42 43 44 45 46 47
17 18 19 20 21 22 23 24
53 54 55 56 57 58 59 60
31
33
32
39
77 76
118
114 113
105
117 115
63 64
48 50
49
1634256152871206578
116
89 88 85 84 83 82 81 80
106
101 100
99 98 70 69 68 67
3 4 5 6 35 36 37
128 127 126 125 124 123 122 121
66
226511751510279107
1196286
27 28 29 30
91 90
92
93
94
95
96
97
103
110 109
111
112
108
38
104
71 72 73 74
P00 P01 P02 P03 P04 P05 P06 P07
P10 P11 P12 P13 P14 P15 P16 P17
P20 P21 P22 P23 P24 P25 P26 P27
P30
P31 P32/INT0n P33/INT1n
P34
P35 P36/WRn
P37/RDn
ALE
EAN
PSEN
RSTn
XTALI XTALO
CD_SEL
CD_A1_CE0 CD_A2_CE1
CD_RST
CD_CD1 CD_A0_WP
D_PLUS
D_MINUS
MP3_CLK
MP3_D
MP3_REQ
VCCo1
VCCo2
VCCik1
VCCo3
VCCik2
VCCo4
VCCo5
VCCik3
VDDAP
CD_CD2
CD_D8_LD0 CD_D9_LD1 CD_D10_LD2 CD_D11_LD3 CD_D12_LD4 CD_D13_LD5 CD_D14_LD6 CD_D15_LD7
CD_INTREQ_STB
RXM_A0 RXM_A1 RXM_A2 RXM_A3 RXM_A4 RXM_A5 RXM_A6 RXM_A7
P50
P51
P52
P53
P54
P55
P56
P40/RxD P41/TxD
P42
P43
P44
P45
P46
P47
EPCLK
GNDo1
GNDo2
GNDo3
GNDik1
GNDo4
GNDik2
GNDo5
GNDAP
GNDo6
GNDo7
GNDik3
GNDik4
TEST1 TEST2 TEST3 TEST4
CD_D6 CD_D7
CD_D5
CD_D4
CD_D3
CD_D2
CD_D1
CD_D0
CD_RDY / RNB
CD_WR_WE CD_RD_RE
CD_CS1_ALE
CD_CS0_CLE
VCCik4
P57
CD_SM_CE2
MMC_CLK
MMC_CMD
MMC_DAT
MMC_VDDE
C530 NC
R4174K7
R437 NC
R429 NC
L179
BEAD/200R
R432 NC
R439
NC
USB
P125 NC
1
2
3
5 4
VDD
D-
D+
GND NC
C532NCC534NCC533
NC
C537 NC
C547
NC
C528 100n
C536 NC
X106 8MHz
R430 100R
Q126 MMBT3906
1
3 2
C535 NC
P119 CON4/100mil
1
2
3
4
C531NCC529
100n
+
C563 10uF/50V
C555100n
C552100n
R436 4K7
C540 100n
R431 100R
I134
NC
10 9 8 7 6 5
4
3
25
24
21
23
2
26
1
20
22
27
11
12 13
15
16
17 18 19
28
14
29
30
31
32
A2 A3 A4 A5 A6 A7
A12
A15
A11
OE
DQ7
A10
A16
A9
NC
DQ6
CE
A8
A1
A0 DQ0
DQ2
VSS
DQ3 DQ4 DQ5
A13
DQ1
A14
NC
WE
VDD
C548100n
Q127 MMBT3906
1
3 2
R435 4K7
C545100n
R43447R
C549100n
C553100n
C551100n
P118
NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
I132 NC
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
NC NC NC NC NC /SE R//B /RE /CE NC NC VCC VSS NC NC CLE ALE /WE /WP NC NC NC NC NC NC
NC
NC
NC
D0
D1
D2
D3
NC
NC
NC
VSS
VCC
NC
NC
NC
D4
D5
D6
D7
NC
NC
NC
NC
RP25 NC
152
6
374
8
RP24 NC 152
6
374
8
C550100n
C538 100n
R428 NC
C539 100n
R422
NC
+
C542
NC
I136 NC/74AHC00D 1 2 3
6
8
114
5 10
9
13 12
14
7
Ain1 Ain2 Aout
Bout
Cout
DoutBin1
Bin2 Cin1
Cin2
Din1 Din2
VDD
GND
C527
47uF/16V
C544 47uF/16V
I135 NC
2 4
5
3
R438 NC
R456
10K
R45710K
R450 47R
R447 NC
R420 NC
P121 NC
1
2
R446 NC
C541 NC/100n
R45110K
R452
10K
R453
10K
R454
10K
R455
10K
R490 NC
R489 NC
P122
HEADER 13
1 2 3 4 5 6 7 8 9 10 11 12 13
RP28 NC 152
6
374
8
RP29 NC
152
6
374
8
R449 NC
R448 NC
R445 NC
C570 100n
C571 100n
R51010K
R51110K
P120
NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
R492 0R
R497 0R
C566 100n
I140 NC
3 2
1
VI VO
ADJ
+
C569 10uF/50V
R491 10K
R528NC
R5290R
R49410K
R49610K
R49510K
C565 22p
R493 1M
X107 12MHz C564 22p
I138 STK6012/128K/PLCC44
35 21
20
10
14 15 16 17
2 3 4 5 6 7 8 9
43 42 41 40 39 38 37 36
24 25 26 27 28 29 30 31
19 18 32 33 13 11
4422112
23
34
EA/VP X1
X2
RESET
P3.2/INT0 P3.3/INT1 P3.4/T0 P3.5/T1
P1.0/T2 T1.1/T2EX P1.2 P1.3 P1.4 P1.5 P1.6 P1.7
P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7
P2.0 P2.1 P2.2 P2.3 P2.4 P2.5 P2.6 P2.7
P3.7/RD
P3.6/WR
PSEN
ALE/P P3.1/TXD P3.0/RXD
VCC
VSS
P4.2
P4.3
P4.0
P4.1
6.11 MCU
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
21
Page 23
SRS_Lout
SDA
Rin
SRS_Rout
Lin SCL
3V3_SW
VCC
VCC_SRS
V33_SRS
V33_SRS
AGND
3V3_SW AGND
AGND
VCC_SRS
V33_SRS
GND
AGND GND
R622 15.8K R623 17.8K
C637
0.1uF
R619
31.6K
C633
0.1uF
C632
0.1uF
C636
0.1uF
R625
2.26K
+
C621
10uF/50V
+
C620 10uF/50V
R627
4.87K
+
C61710uF/50V
R626
3.09K
L601
BEAD/200R
R624 22.6K
C626 0.1uF
R604 100R
R607 0R
R618 11.5K
R614
10.5K
R615 11.5K
R608 NC
R603 100R
R611 19.1K
R609 28.7K
R612
2.2K
R610 6.34K
R616 5.76K
C614 NC
C628 0.1uF
C618 NC
C623 4700pF
R605 0R
C630
0.1uF
R601 0R
R602 0R
I602 LT1117-3V3
3
1
2
VI
GND
VO
C6390.1uF
C638
100uF/16V
+
C615 10uF/50V
C612 15nFC611 0.01uF
+
C625
4.7uF/50V
C627 0.1uF
R617 5.76K
R606
0R
C619 0.22uF
+
C602 10uF/50V
+
C601 10uF/50V
+
C609
10uF/50V
AP8210Q PLQFP64
I601
495051525354555657585960616263
64
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
171819202122242325262728293031
32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
VREF
VSA2
VDA2
LHP
LHPB
LHPA
RHP
RHPB
RHPA
MIXOUT
CB3
CB3B
CB2
CB2B
CB1
CB1B
FOUT
CLPB
CLP
COMPC2
COMPC
MULTIN
BASSOUT
PUNCHIN
RVOLI
RMAXO
LMAXO
LVOLI
OUTPUTR
OUTPUTL
VDA1
VSA1
CH1L
CH1R
CH3L
CH2L
CH3R
CH3R
CH4R
CH4L
NC1
NC2
NC3
NC4
NC5
NC6
GND
SCL
SDA
RSTB
A0
VCC
FSUMI
FSUMLRO
FMINRLO
FMINRLO2
FSPACEI
NC7 NC8
NC9 NC10 NC11 NC12
VREFB
+
C606
10uF/50V
+
C610 10uF/50V
C616 0.47uF
C613 NC
R679 NC/10K
+
C605 10uF/50V
C629
0.1uF
+
C631 10uF/50V
+
C603
10uF/50V
C604
0.1uF C607 0.1uF
C608 0.1uF
C635
0.1uF
R613
10.5K
R620
42.2K
C634
0.1uF
R621
63.4K
C622
0.1uF
L602
BEAD/200R
R680 NC/10K
C624 0.1uF
6.12 SRS
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
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CONNECT TO V12AMP
CONNECT TO VCC
GND GNDP
Lin
Rin
Mute
MODE
Lin
Mute
SP_R_OUTP
SP_L_OUTN SP_R_OUTN
SP_L_OUTP
MODE
SP_L_OUTP
SP_L_OUTN
Rin
SP_R_OUTP
SP_R_OUTN
V12AMP
Rin Lin
SDA SCL
SRS_Lout
SRS_Rout
GNDIN
VCC
VCCL
3V3_SW
V12R1
V12L1
VCCR
V12L1
V12R2
V12L1
V12R1
V12L1
V12R1
GNDIN
GNDLB
GNDLE
GNDRA
GNDLA
GNDRB
GND
GNDP
V12AMP
GNDRC
GNDIN
GNDIN
VCCR VCCL
GNDRC
GNDRC
GNDLC
GNDLA
GNDRA
GNDLA
GNDLA
GNDLA
GNDRA
GNDRA
GNDRA
V12L1
V12R1
V12R1
V12L2
V12L2 V12R2
GNDRC
GNDLA GNDRAGNDLEGNDRE
GNDLBGNDRB
GNDLC
GNDRE
GNDP
R635
1K
+
C669
10uF/50V
+
C666
33uF/50V
+
C650
33uF/50V
R647
1K
R638 1K
C644
180pF
C662 1uF/63V
C641
15pF
C665
0.1uF
Q601 MMBT3906
C653
0.1uF
C667
0.1uF
R639 39K
R669 0R
R661 NC
C643 22pF
C673
0.1uF
R668 39K
R665 NC
R634 NC
C654
0.1uF
R643
5.1K
C671 22pF
R640 0R
C668 1uF/63V
C672 180pF
C664 NC
+
C676
100uF/16V
L606 15uH
L605 15uH
R633 1R
C657
0.1uF
R662
100K
R652 1R
P601
CON9
1 2 3 4 5 6 7 8 9
R657 1R
C640 180pF
+
C652
33uF/50V
C658
0.1uF
R629
3.3K
I604
YDA135
1 2 3 4 5 6 7 8
9 10 11 12
1314151617181920212422
23
25
26
27
28
29
30
31
32
33
34
35
36
3738394041424344454647
48
N/C VREFL VSSL MUTE SLEEP PROT N/C TPP TEST VSSR VREFR N/C
VDDR
INR
NFINR
NFPR
NFNR
N/C
CDOR
CDIR
N/C
SENSENR
SENSEPR
PVDDR
PVSSR
N/C
HP_R
HN_R
LN_R
LR_R
LP_L
LN_L
HN_L
HP_L
N/C
PVSSL
SENSENL
PVDDL
SENSEPL
N/C
CDIL
CDOL
N/C
NFNL
NFPL
NFINL
INL
VDDL
C646
0.1uF
C647 NC
P603
4 HEADER
1 2 3 4
R651 10K
C655 1uF/63V
C649
1uF/63V
+
C663
33uF/50V
R664
0R/0.5W
R672
2.4K
R671
2.4K
R628
3.3K
R681 NC
C677 NC
R650 10K
P602
CON_2.54mm_4
1 2 3 4
I608
MC78L05_TO252
1 3
2
IN OUT
G
C651 NC
R641 NC
R632 1R
I607
FW332
2
1
3 4 5
6
7
8
NG
NS
PS PG PD
PD
ND
ND
I606
FW332
2
1
3 4 5
6
7
8
NG
NS
PS PG PD
PD
ND
ND
I605
FW332
2
1
3 4 5
6
7
8
NG
NS
PS PG PD
PD
ND
ND
C674 180pF
I603
FW332
2
1
3 4 5
6
7
8
NG
NS
PS PG PD
PD
ND
ND
R682 NC
C678 NC
R644 1R
R631
1K
R646 NC
R645
0R/0.5W
R648 100K
C642
0.1uF
R670
1K
R630 0R/0.5W
R663 1R
R636
2.4K
C656 NC
R675 1R
R676 1K
R655 0R/0.5W
R654 100K
R673 1K
R666 NC/0R
R659 100K
R656 10K
C675
15pF
R653
NC
R637
2.4K
R667
5.1K
R649 NC
+
C645
1000uF/16V
+
C659
1000uF/16V
C661 NC
+
C648
10uF/50V
L604 15uH
R677
3.3K
R683 NC/10K
R642 NC/0R
C670 NC
R658 1R
R678
3.3k
R660 NC
L603 15uH
R674
51R/1206
2
1
C660
0.1uF
6.13 Audio AMP
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VOL­DEC
VOL+ INC
MENU DOWN UP OK
POWER
IR
LED
2202129900
5VD
LED_G IR_IN
KEY1_OK KEY2_UP
KEY5_DEC
KEY0_MENU
KEY3_DOWN KEY4_INC
LED_R
PWRON
GND
GNDGND
GND
P711
CON6_2mm
1 2 3 4 5 6
D711
S701
I711
CAM-1538TP5
123
VOUT
GND
VCC
S705 S702 S703 S704 S706 S707
P701
CON7_2mm
1 2 3 4 5 6 7
D721
NC
S721
I721 NC
123
VOUT
GND
VCC
6.14 Key-Pad IR
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
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7. Working Theorem
A. A/D converter (PC)
The ADC is to convert RGB analog signal to digital signal that scaling chip can acknowledge .The AD9883 is a complete 8-bit 110 MSPS monolithic analog interface optimized for capturing RGB graphic signal, a +3.3V power supply is necessary. Its 110 MSPS encode rate capability and full-power analog Bandwidth 110 MHz supports display resolutions of up to 1280*1024 at 60 Hz. A clamp signal is generated internally or may be provided through the CLAMP input pin .This device is fully programmable via a two-wire serial port. The HSYNC input receives a logic signal and provide the frequency reference for pixel clock generation. The clock gene rator CO AST inp ut may be use d to stop synchro nizing with HSYNC and co ntinue producing a clock at its present frequency and phase . The CLAMP logic input may be used to define the time during which the input signal is c lamped to GND , establishing a black reference. When the Power Down control input is bringing to low, AD9883 is put into a very low power dissipation mode ,all the output buffers are placed in a high-impedance state.
B. Video Decoder (video)
The t0956 is a hightly integrated NTSC,PAL,and SECAM video decoder support for high quality LCD-TV video applications. With an embedded SDRAM controller, t0956 supports NTSC/PAL chroma and luma separation using a 3-dimensional adaptive comb filter for reducing the cross-luma and cross-chroma artifacts.The frame buffer is also usec for 3D noise reduction circuit that resumes good visual quality when the input signal is a noisy video source
The three 9-bits 108-MSPS A/D converters in the t0956 chip can be used for digitalizing RGB from PC or YPbPr component signals as well. Piior to each channel contains the AGC and clamping circuits with paogrammable gain and offset. A total of 10 video input terminals can be configured to combinations of RGB, YPbPr , CVBS, S-Video inputs. The component, composite, or S-Video signals are sampled at a free-run external clock frequency(20~80 MHz). After the video decoder processing, the video data was sent out with a line-locked alignment rate(27 MHz).
The t0956 comes with 128-pin QFP package.
C.
DVI input
The SiI169 Receiver uses PanelLink Digital technology to support HDTV and high-resolution digital displays for DTV and PC applications. It features High-bandwidth Digital Content Protection (HDCP) for secure delivery of high-definition video in consurmer electronics products.
The SiI160 comes with integrated,pre-programmed HDCP keys, greatly simplifying manufacturing and providing the highest level of security. For improved sase of use, the SiI169 has enhanced jitter tolerancd and low-power standby mode. PanelLink Digital technology is the world’s leading DVI solution
D. Scaling controller
The t0932 chip is a LCD-TV controller chip for color display up to SXGA or 1400*1050 wide screen panel.It includes a 96/64-bits controller for frame rate conversion and 3D interlace-to progressive video processing. It also supports non-linear scaling for 4:3 to/form 16:9 conversion, flexible picture in video display, cinema to TV conversion, hue/saturation adjustment, and advanced OSD system.
The t0932 chip is targeted for the applications of high-end LCD-TV. It will accept all HDTV video signals for flat panel display. It comes with 336-pin and 316-pin BGA package.
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General Feature:
! 96/64-bit DRAM controller for interlaced to progressive video processing and fram-rate
conversion for computer graphics.
! PIP(picture in picture) ! On chip advanced OSD and pixel-based OSD from JPEG port. ! Hardware mode detection for HDTV. ! Two sets of mode detection for flexible simultaneous main-and sub-picture display. ! Copy protection detect and display enable. ! On chip hue, saturation, bright ness, contrast, a nd gamma correction. ! Max pixel rate up to 135 MHz. ! Video Black White Expansion. ! Flesh tone adjustment. ! Improved temporal-spatial dithering. ! Non-linear scaling for 4:3 to/form 16:9 conversion. ! Auto cinema mode detection, 3:2/2:2 pull-down, and 3D de-interlacing. ! Desk and ceiling mode for projector application. ! PWMs(Pulse Width Modulators) from 28K to 100Hz.
E. Audio
Three audio sources put into MSP 3425G or MSP 3445G which fist select the sources and do pre-amplify. The bass rrelbe control also be provided. The conrol of all the functions is accomplished by serial bus. Audio amplifier put into IC YDA135 is a class-D amplifier that is output power of 20W/channel on a 12V power supply operation .
The AP8210 SRS WOW Universal Audio Processor(UAP) isan extraordinary and highly single chip audio enhancement processor based on SRS Lab Inc.’s patented WOW technology.
F. Tuner
The Antenna receive the TV signal and modulate it to the CVBS signal which can be recognized by the decoder and FM-stereo/FM-mono/NICAM audio signal output to the sound Automatic standard decoder IC MSP3425G or MPS3445G. The MCU can automatic detect the tuner and send order by serial bus.
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MAIN PCB
POWER PCB
KEYPAD PCB
P904
P902
P903
P101
P114
P126
P115
P105
P106
P107
P122
P112
P118
P701
P711
P601
P602
P603
P108
P111
P117
P113
P116
P110
IR PCB
AUDIO PCB
CN2 CN3
CN1
P908
P905
W901
SPK(R)SPK(L)
W901
P906
P907
P123
LCD PANEL
LCD PANEL
8. Wiring Diagram
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9. PCB Layout Diagrams
9.1 MAIN PCB TOP VIEW
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9.2 MAIN PCB BOTTOM VIEW
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9.3 AUDIO PCB TOP VIEW
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9.4 AUDIO PCB BOTTOM VIEW
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9.5 KEYPAD PCB TOP VIEW
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9.6 KEYPAD PCB BOTTOM VIEW
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9.7 IR PCB TOP VIEW
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9.8 IR PCB BOTTOM VIEW
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10. Trouble Shooting Flow Chart
10.1. NO POWER
Start
12V
On C101
No
Remove P101
Check+12V
No
Replace
Power Board
Yes
5V on C106
No
Check
I101,D101,I104,I1
10
5V on C115
Yes
No
Check
I103,D103,
I114,I131
Yes
3.3V on C119
No
Check
I105,I128
Yes
3.3V on C145
2.5V on C431
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
Yes
No
No
Check
I109
Check
I116,I123
36
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10.2. NO VOICE
Audio
Check
input
No
PC
P111
Check
Yes
Pin2,Pin5?
input
Audio
Check
No
Yes
P110
Check
YCbCr
Pin1,Pin2?
I113
Replace
I114
Replace
I601
Replace
I604
Replace
Input
Audio
Check
P110
Check
Pin3,Pin4?
I111
Replace
No No
TV AV,S-Video
Check
I111 PIN14?
Yes
No
I113
Check
Pin3, Pin13?
Yes
Yes
No
I114
Check
Pin20,Pin21?
Yes
No
I601
Check
Pin13,Pin14?
Yes
No
I604
Check
Yes
Pin27~34?
Check
Speaker
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10.3. NO DISPLAY
Check
R516, C270
C145, R261
No
Check
YCbCr mode
Yes
I116 PIN51
has signal?
Check
R517,C273
L151, R265
No
Check
Yes
I116 PIN52
has signal?
X103
Replace
No
No
I116
Replace
No
Check
No
I117
Check
I123,I127,X105
No
I128
Replace
No
Check
Panel Powr CKT
No
Check
L144, R260
R518, C274
Check
I116 PIN53
Yes
has signal?
Yes
Check
I103 is working?
Yes
Check
I116 has output
signal at RP30?
Yes
Check
signal at RP31
I116 has output
Yes
Check
L142 is 3.3V?
Yes
Check
I123 has out put signal at
Check
RP18~RP23
P114,PIN19~22,PIN11~16
has LVDS signal
Yes
Check
Yes
Replace
Panel Power 5V
LCD Panel
I112
Replace
No No
TV mode AV mode S-Video mode
Check
Yes
has signal
I111 PIN12
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PC and YPbPr
mode
Check
power region
dark Amber Yes
Check led color Check I/O cable is OK
Green
Press power Key
on/off is ok?
Yes
Press menu Key
if osd display
Yes
Check I123 has output signal at RP18~RP23
No
No
Check I138 reset
Check Keypad
pcb is ok?
Yes Check inverter is OK Change Inverter
No
Yes
No
No
Check input signal is
Power On
Change I138
Check Reset
circuit
Check
I123,I127,X105
Check panel power is 5V
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
Yes
Yes
Change LCD Panel
39
No
Check
Panel Power CKT
Page 41
11. Adjustment
11.1. ADJUSTMENT CONDITIONS AND PRECAUTIONS
1. Approximately 30 minutes should be allowed for warm up before proceeding.
2. Adjustments should be undertaken only on those necessary elements since most of them have been carefully preset at the factory.
3. ESD protection is needed before adjustment.
11.2. MAIN ADJUSTMENTS
NO. FUNCTION DESIGNATION
1. Eeprom Initial Function Key
2. White Balance Function Key
11.3. ALIGNMENT PROCEDURES
Adjustment Conditions and Precautions:
(A). Power supply voltage:
AC 110/120V±10% 60 Hz±5%, AC 220/240V±10% 50 Hz ±5%.
(B). Warm up time:
The display must be power ON for at least 30 minutes at full white pattern before starting alignments. This is especially critical in color temperature and white balance adjustments.
(C). Signals: reference the front detail specifications and timing table.
Video : reference the front detail specifications.
1. Eeprom Initial:
A. Timing : 1024x768@60Hz. B. Pattern : Cross hatch. C. Switch off the power and press the “▲” and “▼ “ key simultaneously, and switch on
the power. At this time we can enter into the factory mode.
D. Select the “INITIAL” item and press “enter“key to reset the Eeprom.
2. White Balance Adjustment :
A. Timing : 1024x768@60Hz. B. Pattern : 16 gray. C. Set CA110 color analizer at the center of screen and along a perpendicular to the
screen at 20cm from the display. D. Press menu key select the OSD page on INPUT SELECT and select MAIN:VGA. E. Press menu key change the OS D page to adjust page. F. Press “▼” key to select the “ AD BALANCE” item in the factory mode and press
“enter “key, then the white balance will be auto dadjusted . G. Color temperature verification :
(1) Color temperature medium verify : press “▼” ,“▲” key to move cursor to COLOR
TEMPERATURE at factory mode and press “ then check the color temperature is
WARM x=0.313 ± 0.03 y=0.329 ± 0.03
left
” ,“
right
” key set in mediun, and
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MEDIUM x=0.283 ± 0.03 y=0.298 ± 0.03 COOL x=0.271 ± 0.03 y=0.278 ± 0.03
Y300 cd/m
H. Press menu key select the OSD page on INPUT SELECT and select MAIN:YPbPr
Input source : DVD Player
Pattern : color bar.
I. Repeat the F and G step.
2
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Rev: 1c
Serial No. Prefix: PJL
Item ECR/ECN ViewSonic P/N Ref.P/N Location Universal number# Q'ty
1 AC Power Cord USA PC = 90° 1.83M Black A-00001784 2427130117 P951 1 2 Remote Control Block JC278A ViewSonic N2750 USA A-00001785 2419200013 1 3 PCB ASS'Y Block (MAIN) B-00001786 6201-7027146301 1 4 PCB ASS'Y Block (CON) B-00001787 6202-7027226101 1 5 PCB ASS'Y Block (AUDIO) B-00001788 6205-7027226101 1 6 PCB ASS'Y Block (IR) B-00001789 6206-7027226101 1 7 Cabi Back JC278 ABS 94V0 Black #4001 C-00001790 2022262602 1 8 Bezel Assembly JC278 ABS 94V0 Black #4001 C-00001791 2603307683 1 9
Cables:
I/O Cable D15/D15 20276(3+6) 1.83M Black CB-00001792 2427501187 P961 1 10 Onwer Guide ViewSonic N2750W VS10576-1M DC-00001793 2001131286 1 11 Guarant Card ViewSonic N2750W QSG New DC-00001794 2002310434 6P81 1 12
Electronic
LCD Panel CMO V270W1-L03 E-00001795 2212006100 1 13
Hardware:
Bracket, Fix JC278 Base Aluminum Black 4001 HW-00001796 2071870401 1 14 Carton Box ViewSonic N2750W VS10576-1M P-00001797 2011127001 1 15 Polyfoam JC278 EPE Up (L) P-00001798 2012177500 6P20 1 16 Polyfoam JC278 EPE Up (R) P-00001799 2012177600 6P21 1 17 Polyfoam JC278 EPE Down P-00001800 2012178400 6P22 1
Remark 1:
Above listed items are examples, supplier can expand the rows to add more necessary items.
Remark 2:
RECOMMENDED SPARE PARTS LIST (N2750w-1 for "M-Model")
Description
Accessories:
ViewSonic Model Number: VS10576-1M
All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR
approved by ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior
Cabinets:
Packing Material:
PC Board Assembly:
Documentation:
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
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12. Recommended Spare Parts List
Page 44
ViewSonic Model Number: VS10576-1M Rev: 1a
Serial No. Prefix: PJL
Ite
m
ViewSonic P/
N
Ref. P/N Locatio
n
Universal number#Q'ty
1 N/A
2024267302 FRONT BEZEL JC278 ABS 94V0 BLACK #4001 1F01 1
2 N/A
2054256001 ORNAMENT JC278 FRONT BAR ABSHB AL-PLATE 1F02 1
3 N/A
2033150400 IR COVER JC278 PC LIMPID PANTONE 476C 1F03 1
4 N/A
2053753901 LED INDIC.-PWR JC278 ABS 94V0 AL-PLATE 1F04 1
5 N/A
2044266501 FUNCTION KEY JC278 ABS 94V0 AL-PLATE POWER 1F05 1
6 M-SCW-0824-0285
2084730082 SCREW,BND T+ M3X8(BND T+) 1F06 1F21 1F28 14
7 N/A
2071971300 METAL FITTG JC278 SECC t=1.0mm FOR PANEL 1F10 1
8 N/A
2080005200 SCREW,SPE M3*3 TYPE I FOR HS PANEL NI 1F11 10
9 M-SCW-0824-0811
2080003700 SCREW,SPE 1SZZTER001A M3*6L MSWR17/FZMY1 1F12 1F15 1F29 1F39 36
10 N/A
2072050400 METAL FITTG-I/O JC278 SECC t=1.0mm IO MAIN(U) 1F13 1
11 N/A
2083730108 SCREW,BND T+ M3X10,T24,F,NI 1F14 1F18 6
12 N/A
2072050500 METAL FITTG-I/O JC278 SECC t=1.0mm IO SIDE(U) 1F15 1
13 N/A
2082340102 SCREW,CSK+ SCREW F M4X10 (CSK+) 1F16 1F24 1F31 19
14 N/A
2027259402 DUST COVER JC278 ABS 94HB BLACK #4001 1F17 1
15 N/A
2071971400 METAL FITTG JC278 SECC t=1.0mm FOR SPK 1F19 1
16 N/A
2071870300 BRACKET,FIX JC278 Aluminum 1F22 1
17 N/A
2082740122 SCREW,BND+ M4X12 (BND+) 1F23 2C06 10
18 N/A
2027259002 DUST COVER JC278 ABS 94V0 BLACK #4001 1F26 1
19 N/A
2044266601 FUNCTION KEY JC278 ABS 94V0 AL-PLATE FUNCTI 1F27 1
20 N/A
2071671000 SHIELD PLATE JC278 SECC t=1.0mm 1F30 1
21 N/A
2083630068 SCREW FMS+ M3X6,M,S-TITE,F,NI 1F32 2
22 N/A
2080040062 SCREW,SPE M4*8 PMS-3/W 1F33 1
23 N/A
2072459100 INSULATOR PC FR700 180X130 SONY T4000 1F36 1
24 PL-HD-0705-0116
2074191000 HOLDER JK1461 JEAN 1F37 1
25 N/A
2071871100 BRACKET,FIX JC278 SECC T=0.8mm FOR SWITCH 1F38 1
26 C-00001790
2022262602 CABI BACK JC278 ABS 94V0 BLACK #4001 2C01 1
27 N/A
2027259202 DUST COVER JC278 ABS 94HB BLACK #4001 2C03 1
28 N/A
2027259302 DUST COVER JC278 ABS 94HB BLACK #4001 2C04 1
29 N/A
2027259102 DUST COVER JC278 ABS 94HB BLACK #4001 2C05 1
30 C-00001876
2071870401 BRACKET,FIX JC278 BASE ALUMINUM BLACK 4001 5B01 1
31 PL-PD-0714-0069
2039802303 FOOT PAD
VA520 CR420xφ16.5x5.8 BLACK
5B02 6
32 N/A
2082750402 SCREW,BND+ M5X40,M,P,ZN-CC 5B03 4
33 P-00001797
2011127001 CARTON BOX VIEWSONIC N2750W VS10576-1M 6P01 1
34 N/A
2055632073 LABEL N2750W VS10576-1M(M) 6P02 1
35 N/A
2055636028 LABEL N2750W VS10576-1M SMALL LABEL 6P05 1
36 M-LB-0813-0856
2055613379 LABEL ViewSonic CONTAINER LABEL 6P11 1/9
37 M-LB-0813-0530
2055617101 LABEL 10*20 HI-POT TESTED 0K 6P13 1
38 M-LB-0813-0959
2055613392 LABEL VSC HIGH VOLTAGE WARNING LABEL 6P14 1
39 P-00001798
2012177500 POLYFOAM JC278 EPE UP(L) 6P20 1
40 P-00001799
2012177600 POLYFOAM JC278 EPE UP(R) 6P21 1
41 P-00001800
2012178400 POLYFOAM JC278 EPE DOWN 6P22 1
42 N/A
2055135010 LABEL VIEWSONIC N2750W VS10576-1M 6P50 1
43 M-LB-0813-0528
2055103400 LABEL JK0936F WEN 6P52 1
44 M-LB-0813-0002
2056603050 SERIAL LABEL VIEWSONIC LCD SERIAL LABEL 6P56 6P54 6P55 6P51 4
45 N/A
2013054003 POLYETHY BAG 850X950mm HDPE BAG 6P60 1
46 DC-00001793
2001131286 OWNER GUIDE VIEWSONIC N2750W VS10576-1M 6P80 1
47 DC-00001794
2002310434 GUARANT CARD VIEWSONIC N2750W QSG NEW 6P81 1
48 N/A
2011100017 CARTON BOX 360X220X50mm (WXDXH) BOX(B) 6P85 1
49 M-MS-0808-1316
2013222536 POLYETHY BAG 250mmx350mmxt0.3 ADD>PE-LD< 6P86 1
50 N/A
2072257200 HEAT SINK JP166K AL28*28*8H 9H01 1
51 N/A
2063451300 ADHESI SHEET JC186H PVC 7.5X7.5X3t 9R80 1
52 N/A
2005100500 BATTERY,DRY R03UG UM3-1.5V TOSHIBA B901 2
53 E-C-0404-3096
2335310812 CAP,ELE LOW ESR 105'C EC 1000u/ 16V 10*20 P=5.0 K C101 1
54
E-C-0404-3815 2346410496 CAP,CHIP 85'C CS 0603/Y5V/50V 0.1u Z T
C105 C107 C110 C111 C114 C116 C122 C124 C125 C126 C128 C130 C131 C132 C134 C135 C136 C137 C138 C143 C144 C146 C164 C165 C169 C170 C171 C172 C173 C175 C176 C177 C178 C181 C182 C183 C184 C186 C187 C188 C189 C190 C191 C194 C195 C200 C214 C215 C216 C238 C242 C247 C261 C263 C264 C265 C266 C267 C268 C269 C270 C271 C273 C274 C275 C276 C278 C279 C280 C281 C282 C290 C291 C292 C293 C294 C299 C300 C301 C304 C305 C306 C307 C308 C310 C311 C312 C313 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C423 C424 C425 C426 C427 C428 C429 C430 C43 C435 C437 C438 C439 C440 C441 C442 C443 C444 C445 C446 C448 C449 C450 C451 C452 C453 C454 C455 C456 C457 C458 C459 C460 C461 C462 C463 C464 C465 C466 C467 C468 C469 C470 C471 C473 C474 C475 C476 C477 C479 C481 C484 C486 C487 C488 C489 C490 C528 C529 C538 C539 C540 C543 C545 C548 C549 C550 C551 C552 C553 C555 C558 C559 C560 C566 C570 C571 C604 C607 C608 C622 C624 C626 C627 C628 C629 C630 C632 C633 C634 C635 C636 C637 C639 C642 C646 C653 C654 C657 C658
206
55 N/A
2335215811 CAP,ELE LOW ESR 105'C EC 1500u/ 10V10*16 P=5.0 C C106 C115 2
56 N/A
2333347613 CAP,ELE 105'C EC 47u/ 16V 5*11 P=2.5 T C112 C118 2
57 N/A
2341133196 CAP,CHIP 125'C CS 0603/COG/50V 330p J T C117 C201 C234 C235 C285 C287 C297 C302 C314
C315 C374 C375 C376 C377 C382 C383 C386 C572 C573 C574 C575
21
58 N/A
2333322791 CAP,ELE 105'C EC 220u/ 16V 8*11 P=5.0 T C119 1
59 N/A
2333610613 CAP,ELE 105'C EC 10u/ 50V 5*11 P=2.5 T C123 C127 C129 C133 C139 C197 C198 C202 C204
C207 C217 C218 C222 C226 C229 C237 C243 C248 C518 C563 C569 C601 C602 C603 C605 C606 C609 C610 C615 C617 C620 C621 C631 C648 C669
35
BOM LIST (N2750w-1M)
Description
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
43
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N
Ref. P/N Locatio
n
Universal number#Q'tyDescription
60 E-C-0404-3898
2341110096 CAP,CHIP 125'C CS 0603/COG/50V 10p J T C142 C162 2
61 N/A
2336310713 CAP,MINI ELE 105'C EC 100u/ 16V 6.3*7 P=2.5 T C145 C168 C180 C246 C262 C303 C309 C432 C434
C436 C561 C562 C638 C676
14
62 N/A
2346147396 CAP,CHIP 125'C CS 0603/X7R/50V 0.047u K T C147 RA
C148 RA C149 RA
3
63 N/A
2346247396 CAP,CHIP 125'C CS 0603/X7R/25V 0.047u K T C147 RB
C148 RB C149 RB
3
64 E-C-0404-4424
2346110396 CAP,CHIP 125'C CS 0603/X7R/50V 0.01u K T C150 C611 2
65 E-C-0404-4423
2341122096 CAP,CHIP 125'C CS 0603/COG/50V 22p J T C151 C152 C153 C564 C565 C643 C671 7
66 E-C-0404-4225
2346139296 CAP,CHIP 125'C CS 0603/X7R/50V 3900p K T C154 C284 2
67 N/A
2336347791 CAP,MINI ELE 105'C EC 470u/ 16V 8*9 P=5.0 T C155 C298 C431 C447 4
68 N/A
2346139396 CAP CHIP CS 0603/X7R/50V 0.039u K T C156 C286 2
69 N/A
2349901296 CAP,CHIP SPEC V-PORT0603 22p C159 C160 C161 C179 C185 C192 6
70 E-00000999
2336347613 CAP,MINI ELE 105'C EC 47u/ 16V 5*7 P=2.5 T C163 C174 C196 C199 C288 C478 C480 C483 C485
C524 C526 C527 C544
13
71 E-C-0404-4224
2341147096 CAP,CHIP 125'C CS 0603/COG/50V 47p J T C166 1
72 E-C-0404-4828
2341110196 CAP,CHIP 125'C CS 0603/COG/50V 100p J T C167 C205 C206 C208 C209 C219 C220 C224 C225
C227 C228 C231 C232 C244 C245 C249 C250 C567
18
73 N/A
2346168396 CAP,CHIP 125'C CS 0603/X7R/50V 0.068u K T C203 1
74 N/A
2341156096 CAP,CHIP 125'C CS 0603/COG/50V 56p J T C221 C223 2
75 E-00003865
2346710596 CAP,CHIP 85'C CS 0603/Y5V/16V 1.0u Z T C230 RA
C233 RA C519 RA C520 RA C525 RA
5
76 N/A
2346610596 CAP,CHIP 85'C CS 0603/Y5V/10V 1.0u Z T C230 RB
C233 RB C519 RB C520 RB C525 RB
5
77 E-C-0404-3900
2341133096 CAP,CHIP 125'C CS 0603/COG/50V 33p J T C239 C240 C408 C409 4
78 N/A
2333633513 CAP ELE 105'C EC 3.3u/ 50V 5*11 P=2.5 T C241 1
79 E-C-0404-4422
2341118096 CAP,CHIP 125'C CS 0603/COG/50V 18p J T C295 C296 2
80 N/A
2349901096 CAP,CHIP SPEC AC0603470A 47P±10% INPAQ C366 C367 C368 C369 C370 C371 C372 C373 C378
C379 C380 C381 C384 C385
14
81 E-C-0404-5321
2333310713 CAP,ELE 105'C EC 100u/ 16V 6.3*11 P=2.5 T C472 1
82 N/A
2346747496 CAP,CHIP 85'C CS 0603/Y5V/16V 0.47u Z T C523 C616 2
83 E-C-0404-3816
2346110296 CAP,CHIP 125'C CS 0603/X7R/50V 1000p K T C556 C557 2
84 N/A
2346115396 CAP,CHIP 125'C CS 0603/X7R/50V 0.015u K T C612 1
85 N/A
2346422496 CAP,CHIP 85'C CS 0603/Y5V/50V 0.22u Z T C619 1
86 N/A
2346147296 CAP,CHIP 125'C CS 0603/X7R/50V 4700p K T C623 1
87 N/A
2333647513 CAP,ELE 105'C EC 4.7u/ 50V 5*11 P=2.5 T C625 1
88 N/A
2341118196 CAP,CHIP 125'C CS 0603/COG/50V 180p J T C640 C644 C672 C674 4
89 E-C-0404-4909
2341115096 CAP,CHIP 125'C CS 0603/COG/50V 15p J T C641 C675 2
90 N/A
2333310801 CAP,ELE 105'C EC 1000u/ 16V10*17 P=5.0 C C645 C659 2
91 N/A
2301310591 CAP,MTL MEB 1.0u/ 63V P=5.0 J T C649 RA
C655 RA C662 RA C668 RA
4
92 E-00000804
2301510591 CAP,MTL CF93M 1.000UF 100V J T C649 RB
C655 RB C662 RB C668 RB
4
93 N/A
2333633613 CAP ELE 105'C EC 33u/ 50V 6.3*11 P=2.5 T C650 C652 C553 C666 4
94 N/A
2364301696 DIODE,SCHOTTKY(SMD) MS22 DO-214AA MOSPEC D101 D103 2
95 E-D-0403-2041
2364600396 DIODE,SWITCH SMD LL4148 DIODES MINIMELF D104 RA
D105 RA D106 RA D107 RA
4
96 N/A
2364600496 DIODE,SWITCH SMD MM4148 GRANDE MINI MELF D104 RB
D105 RB D106 RB D107 RB
4
97 E-D-0403-1667
2364600196 DIODE,SWITCH SMD
LL4148 3.5X1.5φ TEMIC GS08
D104 RC D105 RC D106 RC D107 RC
4
98 M-MS-0808-6352
2363703800 LED
LED 3φ GRN/YEL
D711 1
99 A-00001785
2419200013 CONT BLOCK JC278A VIEWSONIC N2750 USA H901 1
100 N/A
2365806396 IC,LINEAR(SMD) SI-8050SD 5V/3A SANKEN I101 I103 2
101 E-IC-0401-2123
2365807496 IC,LINEAR(SMD) AIC1084-33CM AIC TO-263 I104 RA 1
102 E-IC-0401-2745
2365810796 IC,LINEAR(SMD) AP1084K33A(3.3V) TO-263 ATC I104 RB 1
103 N/A
2365809196 IC,LINEAR(SMD) CM1084SCN263 CHAMPION SO263 I104 RC 1
104 N/A
2365933396 IC,DIGITAL SMD SiI169 TQFP-100 SI I105 1
105 N/A
2365104000 IC MEMORY (EEPROM) 24LC22A PDIP-8 MICROCHIP I106 1
106 E-IC-0401-2924
2365808196 IC,LINEAR(SMD) AP1117E-3.3V SOT-223 ATC I107 RA
I117 RA I602 RA
3
107 N/A
2365808396 IC,LINEAR(SMD) AIC1117-33CY AIC SOT-223 I107 RB
I117 RB I602 RB
3
108 N/A
2365809496 IC,LINEAR(SMD) CM1117SCM-3.3V SOT223 CHAMPION I107 RC
I117 RC I602 RC
3
109 E-IC-0401-2017
2365412600 IC,DIGITAL 24LC21A/P MICROCHIP I108 RA 1
110 N/A
2365424400 IC,DIGITAL ST24LC21BB6 ST PSDIP8 I108 RB 1
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
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n
Universal number#Q'tyDescription
111 N/A
2365919496 IC,DIGITAL SMD AD9883AKST-110 ANALOG DEVICES I109 1
112 N/A
2365915796 IC,DIGITAL SMD ADG774BRQ QSOP-16 ADI I110 RA 1
113 E-00003530
2365813796 IC,LINEAR(SMD) TS5V330DR SOIC-16 TI I110 RB 1
114 E-00002470
2416901600 UV TUNER FQ1236/F H-3(US) PHILIPS I111 1
115 N/A
2365814796 IC,LINEAR(SMD) HEF4052BT SOT109-1 PHILIPS I113 1
116 N/A
2365930196 IC,DIGITAL SMD MSP3425G PMQFP64 Micronas I114 RA 1
117 N/A
2365930596 IC,DIGITAL SMD MSP3445G-B8 PMQFP-64 Micronas I114 RB 1
118 N/A
2365923896 IC,DIGITAL SMD M12L1616A-7 ESMT I115 RA 1
119 N/A
2365925596 IC,DIGITAL SMD GLT5160L16 G-LINK TSOP I115 RB 1
120 N/A
2365933096 IC,DIGITAL SMD t0956 LQFP-128 Turmpion I116 1
121 N/A
2365932896 IC,DIGITAL SMD t-0932 BGA-336L Trumpion I123 1
122 N/A
2365103696 IC MEMORY (SDRAM) K4S643232H-TC60 TSOP86 SAMSUNG I124 I125 I126 3
123 N/A
2365814596 IC,LINEAR(SMD) AIC1084-25CM TO-263 AIC I127 RA 1
124 N/A
2365814696 IC,LINEAR(SMD) CM1084KCN263 TO-263 CHAMPION I127 RB 1
125 N/A
2365932996 IC,DIGITAL SMD t0383JS TSSOP-56 Turmpion I128 RA 1
126 N/A
2365917896 IC,DIGITAL SMD DS90C383AMTDX TSSOP-56 NS I128 RB 1
127 E-IC-0401-2124
2365917996 IC,DIGITAL SMD SN75LVDS83DGG TI I128 RC 1
128 E-IC-0401-1932
2365920096 IC,DIGITAL SMD THC63LVDM83A THINE I128 RD 1
129 N/A
2365812796 IC,LINEAR(SMD) TPA6110A2 HTSSOP-8 TI I131 1
130 E-IC-0401-2269
2365915896 IC,DIGITAL SMD 24LC16B/SN MICROCHIP SO08 I137 RA 1
131 N/A
2365100996 IC,MEMORY AT24C16AN-10SI-2.7 SOIC8 ATMEL I137 RB 1
132 E-00002108
2365103596 IC MEMORY STK6012Px-5V PLCC-44 Syntek I138 1
133 N/A
2365813096 IC,LINEAR(SMD) L78M08CDT TO-252 ST I139 1
134 N/A
2365813996 IC,LINEAR(SMD) AP8210Q LQFP-64 ASP I601 1
135 N/A
2360700796 FET P&N-CH FW332-TL-E SOP-8 SANYO I603 RA
I605 RA I606 RA I607 RA
4
136 N/A
2360700896 FET P&N-CH SI4532DY SO-8 FAIRCHILD I603 RB
I605 RB I606 RB I607 RB
4
137 N/A
2365933196 IC,DIGITAL SMD YDA135 LQFP-148 YAMAHA I604 1
138 N/A
2365809796 IC,LINEAR(SMD) L78M05CDT ST DPAK I608 1
139 N/A
2419301100 RECEIV BLOCK PL-IRM0206-A538 PARA LIGHT I711 1
140 N/A
2433317201 SHIELDING FOAM W17*H17*L20mm K901 2
141 N/A
2434325603 SHIELDING TAPE W25*L60*T0.06 (AL) K902 1
142 N/A
2434420601 AL SHIELDING TAPE W40*L60mm (AL) K903 2
143 E-L-0407-1533
2371154600 COIL,CHOKE JD176 5.2UH 15.5T(REF) L101 L107 2
144 N/A
2371140001 COIL,CHOKE 40uH 0.7mm*30.5Ts T50-52B L104 L108 2
145 N/A
2379500196 BEAD,HI-CURRENT Z= 80ohm 0805 I=6.0A L106 1
146 E-00003533
2379520196 BEAT,HI-CURRENT Z= 200ohm 0805 I=2.0A L109 L110 L111 L112 L113 L114 L115 L116 L120
L125 L126 L127 L128 L131 L132 L139 L148 L150 L166 L167 L168 L169 L170 L171 L172 L173 L17
9
30
147 N/A
2379380096 BEAD,HI-IMPEDANCE Z= 80ohm(100MHZ~) 0603 200mA L117 L118 L119 L121 L122 L123 6
148 N/A
2379360196 BEAD,HI-IMPEDANCE Z= 600ohm(100MHZ~) 0603 200mA L129 L130 L134 L135 L136 L137 L138 L140 L141 9
149 E-R-0405-6600
2253200096 RES,CHIP 1/10W RC 0603 1/10W 0 ohm J T L142 L143 R117 R131 R133 R139 R203 R214 R222
R223 R232 R233 R234 R235 R236 R374 F377 R380 R381 R386 R388 R389 R390 R391 R392 R394 R397 R424 R442 R492 R497 R505 R506 R509 R529 R601 R602 R605 R606 R607 R640 R669
42
150 N/A
2378633996 WOUND CHIP INDUCTOR 3.3uH 3225 K T L144 L145 L146 L147 L149 L151 L157 7
151 E-L-0407-0013
2379101495 FERRITE CORE 3.5X9X0.8 L181 L182 2
152 N/A
2371115001 COIL,CHOKE 15uH/ 8*10 UEW 0.5mm/21.5Ts L603 L604 L605 L606 4
153 N/A
2404301109 CONNECTOR JST PH 10P SIDE P=2.0 OR EQUAL P101 1
154 N/A
2404381106 CONNECTOR 2Ds-0341-001 DVI-D S.E P105 RA 1
155 N/A
2404381104 CONNECTOR QH11121-FP0 DVI-D FOXCONN P105 RB 1
156 N/A
2407430900 SOCKET (D-SUB) DHSB-15FTF7 BLUE(661C) LEOCO P106 1
157 N/A
2405313201 RCA JACK RJ-1165*07-0300A JYE TAI P107 1
158 N/A
2405322202 RCA JACK RJ-1144*09-0300A JEY TAI P108 1
159 N/A
2405332201 RCA JACK RJ-1146*09-0300A JYE TAI P110 1
160 N/A
2405105200 JACK,1P PJ-0008PC-J (577C) KUON YI P111 1
161 N/A
2405322201 RCA JACK RJ-1145*IJ-0300A J.T OR EQUAL P112 1
162 N/A
2407442900 SOCKET DN-508BS-4 DIN(BLK) PETER'S P113 1
163 N/A
2404322130 CONNECTOR 2R1L SIDE P=2.0mm 2046P30HT00 P114 1
164 N/A
2405105300 JACK,1P PJ-0008PF-5 (284C) KUON YI P117 1
165 N/A
2404300003 CONNECTOR JST XH 4P TOP P=2.5 OR EQUAL P119 1
166 N/A
2404301112 CONNECTOR JST PH 13P SIDE P=2.0 OR EQUAL P122 1
167 N/A
2404371008 CONNECTOR JST PH 9P TOP P=2.0 OR EQUAL P123 RA 1
168 N/A
2404390108 CONNECTOR JWT A2001WV2-9P 9PIN P=2.0mm P123 RB 1
169 M-MS-0808-6353
2404301003 CONNECTOR JST XH 4P SIDE P=2.5 OR EQUAL P126 P602 2
170 M-MS-0808-5483
2407310108 SOCKET,IC 2.54mmX7.62 08PIN DIP D/L P127 P129 2
171 N/A
2404301108 CONNECTOR JST PH 9P SIDE P=2.0 OR EQUAL P601 1
172 N/A
2404301103 CONNECTOR JST PH 4P SIDE P=2.0 OR EQUAL P603 1
173 N/A
2404301106 CONNECTOR JST PH 7P SIDE P=2.0 OR EQUAL P701 1
174 M-MS-0808-6354
2404301105 CONNECTOR JST PH 6P SIDE P=2.0 OR EQUAL P711 1
175 N/A
2407001400 SOCKET,ASSY 27" TV INLET+SW P901 1
176 N/A
2427410331 WIRE HARNESS 10P H/H 1007#28+120C 330 2/2.5 P902 1
177 N/A
2427412332 WIRE HARNESS 12/10P H/H 1007#28+120C L=330 P902 1
178 N/A
2427410291 WIRE HARNESS 10P H/H 1007#28+120C 290L P=2 P903 1
179 N/A
2427419291 WIRE HARNESS 10/7+12P H/H 1007#28 L=290/240 P903 1
180 N/A
2427430203 WIRE HARNESS 30P H/H 1571#28+112C L=200mm P904 1
181 N/A
2427404272 WIRE HARNESS 4/2+2P H/A 1007#26 L=100/370mm P905 1
182 N/A
2427413901 WIRE HARNESS 13/6+7P H/H 1007#26 L=900/220 P906 1
183 N/A
2427409591 WIRE HARNESS 9P H/H 1007#26+128C 590L P=2.0 P907 1
184 N/A
2427404381 WIRE HARNESS 4P H/H 1007#24+120C 380L 2/2.5 P908 1
185 A-00001784
2427130117 AC POWER CORD USA PC = 90° 1.83M BLACK P951 1
186 CB-00003425
2427701893 CABLE RCA 3P(Y/R/W) 2562#26 1.8M BLK P955 1
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Universal number#Q'tyDescription
187 N/A
2427791890 CABLE EAR(577C)/RCA 2P(R/W) 1.8M BLK P956 1
188 N/A
2427501187 I/O CABLE D15/D15 20276(3+6) 1.83M BLACK P961 1
189 N/A
2360501196 FET,P-CH SMD AP9435M SO-8 APEC Q101 RA 1
190 N/A
2360501696 FET,P-CH SMD SI9435DY SO-8 VISHAY Q101 RB 1
191 E-00000916
2360501596 FET,P-CH SMD AO4405 SO-8 AO Q101 RC 1
192 E-Q-0402-1608
2360300896 XISTOR,NPN R SMD MMBT3904 SOT-23 FAIRCHILD Q102 RA
Q103 RA Q104 RA Q105 RA Q106 RA Q107 RA Q108 RA Q109 RA Q110 RA
10
193 E-Q-0402-1180
2360301296 XISTOR,NPN R SMD MMBT3904 SOT-23 DIODES Q102 RB
Q103 RB Q104 RB Q105 RB Q106 RB Q107 RB Q108 RB Q109 RB Q110 RB
10
194 E-Q-0402-1378
2360300596 XISTOR,NPN R SMD MMBT3904-7 SOT-23 VISHAY Q102 RC
Q103 RC Q104 RC Q105 RC Q106 RC Q107 RC Q108 RC Q109 RC Q110 RC
10
195 N/A
2360500896 FET,P-CH SMD FDS4953 FAIRCHILD Q111 RA 1
196 N/A
2360500796 FET,P-CH SMD CEM4953 CET Q111 RB 1
197 N/A
2360510196 FET,P-CH SMD SI4953DY SO-8 VISHAY Q111 RC 1
198 N/A
2360501896 FET,P-CH SMD AP9620M SO-8 APEC Q113 1
199 E-Q-0402-1607
2360100596 XISTOR,PNP R SMD MMBT3906 SOT-23 FAIRCHILD Q126 RA
Q127 RA
Q
601 RA
3
200 N/A
2360100696 XISTOR,PNP R SMD PMBS3906 SOT-23 PHILIPS Q126 RB
Q127 RB
Q
601 RB
3
201 E-Q-0402-1375
2360100396 XISTOR,PNP R SMD MMBT3906-7 SOT-23 VISHAY Q126 RC
Q127 RC
Q
601 RC
3
202 E-R-0405-6411
2253210396 RES,CHIP 1/10W RC 0603 1/10W 10Kohm J T R104 R106 R124 R128 R135 R141 R204 R206 R208
R210 R218 R21 R231 R268 R272 R387 R395 R410 R412 R413 R444 R451 R452 R453 R454 R455 R456 R457 R491 R494 R495 R496 R510 R511 R650 R651
37
203 E-R-0405-6604
2253222296 RES,CHIP 1/10W RC 0603 1/10W 2.2Kohm J T R105 R107 R612 3
204 E-R-0405-6419
2253247296 RES,CHIP 1/10W RC 0603 1/10W 4.7Kohm J T R108 R10 R111 R114 R115 R121 R122 R126 R127
R148 R149 R176 R177 R267 R271 R273 R275 R367 R417 R418 R435 R436 R507 R512 R513
25
205 E-R-0405-5994
2253315196 RES,CHIP 1/8 RC 0805 1/8 W 150ohm J T R109 1
206 E-R-0405-7002
2253251196 RES,CHIP 1/10W RC 0603 1/10W 510 ohm J T R125 1
207 E-R-0405-6998
2253210096 RES,CHIP 1/10W RC 0603 1/10W 10 ohm J T R130 R132 R134 R136 R163 5
208 E-R-0405-6409
2253210196 RES,CHIP 1/10W RC 0603 1/10W 100 ohm J T R137 R150 R151 R152 R153 R164 R166 R167 R172
R174 R175 R189 R190 R219 R220 R242 R243 R368 R369 R396 R425 R427 R430 R431 R514 R515 R516 R517 R518 R519 R520 R603 R604
33
209 N/A
2253282196 RES,CHIP 1/10 RC 0603 1/10W 820 ohm J T R154 1
210 E-R-0405-6416
2253233296 RES,CHIP 1/10W RC 0603 1/10W 3.3Kohm J T R158 R239 R628 R629 R677 R678 6
211 E-R-0405-6603
2253222096 RES,CHIP 1/10W RC 0603 1/10W 22 ohm J T R159 R160 R201 R393 4
212 N/A
2253215296 RES,CHIP 1/10W RC 0603 1/10W 1.5Kohm J T R161 1
213 E-R-0405-6417
2253247096 RES,CHIP 1/10W RC 0603 1/10W 47 ohm J T R165 R168 R237 R378 R381 R383 R434 R450 8
214 E-R-0405-6599
2251207506 RES,CHIP 1/10 RC 1/10W 75.00 F T1608 R169 R170 R171 3
215 E-R-0405-7003
2253275096 RES,CHIP 1/10W RC 0603 1/10W 75 ohm J T R178 R179 R180 3
216 E-R-0405-6984
2253210496 RES,CHIP 1/10W RC 0603 1/10W 100Kohm J T R181 R182 R183 R184 R185 R186 R187 R188 R193
R194 R195 R196 R197 R198 R199 R200 R648 R654
20
217 N/A
2253218096 RES,CHIP 1/10W RC 0603 1/10W 18 ohm J T R205 R260 R261 R262 R263 R264 R265 7
218 E-R-0405-6410
2253210296 RES,CHIP 1/10W RC 0603 1/10W 1Kohm J T R209 R414 R415 R508 R631 R635 R638 R647 R670
R673 R676
11
219 N/A
2253215396 RES,CHIP 1/10W RC 0603 1/10W 15Kohm J T R211 R212 R213 R215 R216 R217 R224 R225 8
220 N/A
2253256096 RES,CHIP 1/10W RC 0603 1/10W 56 ohm J T R238 R240 R244 R245 R246 R247 R488 7
221 E-R-0405-6601
2253210596 RES,CHIP 1/10W RC 0603 1/10W 1Mohm J T R241 R376 R493 3
222 E-00002110
2253268396 RES,CHIP 1/10W RC 0603 1/10W 68Kohm J T R411 R416 2
223 E-00003527
2253247396 RES,CHIP 1/10W RC 0603 1/10W 47Kohm J T R443 1
224 N/A
2251228726 RES,CHIP 1/10 RC 0603 1/10W 28.7Kohm F T R609 1
225 N/A
2251263416 RES,CHIP 1/10 RC 0603 1/10W 6.34Kohm F T R610 1
226 N/A
2251219126 RES,CHIP 1/10 RC 0603 1/10W 19.1Kohm F T R611 1
227 N/A
2251210526 RES,CHIP 1/10 RC 0603 1/10W 10.5Kohm F T R613 R614 2
228 N/A
2251211526 RES,CHIP 1/10 RC 0603 1/10W 11.5Kohm F T R615 R618 2
229 N/A
2251257616 RES,CHIP 1/10 RC 0603 1/10W 5.76Kohm F T R616 R617 2
230 N/A
2251231626 RES,CHIP 1/10 RC 0603 1/10W 31.6Kohm F T R619 1
231 N/A
2251242226 RES,CHIP 1/10 RC 0603 1/10W 42.2Kohm F T R620 1
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Ite
m
ViewSonic P/
N
Ref. P/N Locatio
n
Universal number#Q'tyDescription
232 N/A
2251263426 RES,CHIP 1/10 RC 0603 1/10W 63.4Kohm F T R621 1
233 N/A
2251215826 RES,CHIP 1/10 RC 0603 1/10W 15.8Kohm F T R622 1
234 N/A
2251217826 RES,CHIP 1/10 RC 0603 1/10W 17.8Kohm F T R623 1
235 N/A
2251222626 RES,CHIP 1/10 RC 0603 1/10W 22.6Kohm F T R624 1
236 N/A
2251222616 RES,CHIP 1/10 RC 0603 1/10W 2.26Kohm F T R625 1
237 N/A
2251230916 RES,CHIP 1/10 RC 0603 1/10W 3.09Kohm F T R626 1
238 N/A
2251248716 RES,CHIP 1/10 RC 0603 1/10W 4.87Kohm F T R627 1
239 N/A
2253600096 RES CHIP 1/2W RC 2010 1/2 W 0 ohm J T R630 R645 R655 R664 4
240 N/A
2251210086 RES,CHIP 1/10 RC 0603 1/10W 1 ohm F T R632 R633 R644 R652 R657 R658 R663 R675 8
241 N/A
2253224296 RES,CHIP 1/10W RC 0603 1/10W 2.4Kohm J T R636 R637 R671 R672 4
242 N/A
2253239396 RES,CHIP 1/10W RC 0603 1/10W 39Kohm J T R639 R668 2
243 E-00002109
2253251296 RES,CHIP 1/10W RC 0603 1/10W 5.1Kohm J T R643 R667 2
244 N/A
2253451096 RES,CHIP 1/4 RC 1206 1/4 W 51ohm J T R674 1
245 E-R-0405-6422
2259247008 RES,CHIP NETWORKS 8P4R 1/16W 47 ohm J P=0.8 RP01 RP02 RP03 RP04 RP05 RP06 RP07 RP08 RP09
RP10 RP11 RP12 EP18 RP19 RP20 RP21 RP22 RP23
20
246 M-SW-0815-0182
2403702200 SWITCH,PU-TC TSAA-2 HUAJIE S701 S702 S703 S704 S705 S706 S707 7
247 B-00003828
2202517300 PCB MULTILAYER 27"LCD TV M/B FR4*4 270*240 U101 1
248 N/A
2202518200 PCB MULTILAYER JC27A61 A/B FR4*2 100*65 U601 1
249 N/A
2202129800 PC BOARD JC278 KEY/B CEM1 120*20 V1.00 U701 1
250 N/A
2202129900 PC BOARD JC278 IR/B CEM1 54*53 V1.00 U702 1
251 N/A
2200202200 PC BOARD ASS'Y FSP204-2F01 27" PWRA SPI U801 1
252 N/A
2200202210 PC BOARD ASS'Y OPV-0005 27" PWRA LIEN CHANG U801 1
253 E-00001795
2212006100 LCD PANEL V270B1-L01 CMO V901 1
254 N/A
2391310061 SPEAKER ASS'Y 10W/6ohm W60*L228*H74.5 J.G W901 2
255 N/A
2369105101 XTAL,OSC 18.432MHZ/49US 0.1mW/30pF X101 1
256 N/A
2369105301 XTAL,OSC 20.000MHZ/49US 0.1mW/16pF X103 1
257 E-X-0415-0111
2369102901 XTAL,OSC 14.31818MHZ/49US 30pf/0.1mW X105 1
258 E-X-0415-0106
2369103701 XTAL,OSC 8.000MHZ/49US 0.1mW/30pF X106 1
259 E-X-0415-0119
2369103601 XTAL,OSC 12.000MHZ/49US 30pF/1mW X107 1
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* Reader’s Response*
Dear Readers: Thank you in advance for your feedback on our Service Manual, which allows continuous improvement of our products. We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation.
Assessment
A. What do you think about the content of this Service Manual?
Unit Excellent Good Fair Bad
1. Precautions and Notices
2. Service Tool & Equipment Required
3. Specifications
4. Exploded View and Parts List
5. Block Diagram
6. Schematic Diagrams
7. Working Theorem
8. Wiring Diagram
9. PCB Layout Diagrams
10. Trouble Shooting Flow Chart
11. Adjustment
12. Recommended Spare Parts List
B. Are you satisfied with this Service Manual?
Item Excellent Good Fair Bad
1. Service Manual Content
2. Service Manual Layout
3. The form and listing
C. Do you have any other opinions or suggestions regarding thi s service manual?
Reader’s basic dada:
Name: Title: Company: Add: Tel: Fax: E-mail:
After completing this form, please return it to ViewSonic Quality Assurance in t he USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com
)
ViewSonic Corporation Confidential - Do Not Copy N2750w-1
48
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