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ViewSonic N2752w-1M, Service Manual

The ViewSonic N2752w-1M is a high-quality television with impressive features. Enhance your viewing experience with this sleek and modern device that offers exceptional picture quality and advanced audio. Easily access the Service Manual for this product through our website, where you can download it for free. Get the most out of your ViewSonic N2752w-1M today!

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8.5. MT8202 Analog Decoupling 

TSOP 48 pin

VREF DECOUPLING

CLOSE TO 8202 PIN

D_RA7

D_DQS3

A_DQ2

D_CS_1

IOCE_1

A_RA1

D_DQ17

D_DQ26

D_DQ30

D_DQM0

D_RA11

D_DQ4

D_CLK

F_A15

D_DQ26

D_DQ20

IOA0

IOWR_1

PWR_1

D_DQM1

A_DQ12

D_BA0

D_RAS_1

A_DQ0

D_DQ19

D_RA0

D_RA6

A_RA10

A_DQS2

D_DQ0

D_DQ13

F_D[0..7]

D_DQM0

D_DQ22

A_DQ25

IOA6

D_DQ30

A_RA9

A_CLK

A_CLK

D_CAS_1

D_RA11

D_DQ10

D_DQ26

D_DQ21

D_DQ29

D_CLK

D_DQS2

F_A16

F_A14

VREF

F_A[8..21]

A_DQ3

D_RA5

D_CAS_1

D_DQ14

D_WE_1

D_DQ5

D_RAS_1

D_DQ12

IOA7

D_DQ20

D_DQ13

D_DQ8

D_DQ7

A_DQ24

D_DQ5

D_CKE

A_DQM0

D_DQ20

D_DQ31

D_DQ21

D_DQ2

A_DQ16

D_DQ3

F_A8

D_RA4

A_DQ29

D_CLK

A_DQ17

A_BA[0..1]

A_CAS_1

D_DQS2

D_DQ1

D_RA11

D_DQS3

A_CKE

F_D5

F_D3

D_WE_1

D_DQ23

F_D7

D_RA4

D_BA1

IOA[0..7]

A_DQ[0..31]

D_CS_1

D_DQ0

D_BA0

D_DQ7

D_DQM1

A_DQ19

D_DQ5

A_DQS3

D_DQ0

VREF

D_DQ27

A_DQ8

A_DQ26

D_DQM0

DV25B

D_BA0

D_CLK_1

A_DQS0

D_RA3

D_RA2

D_RA5

D_DQS0

IOA3

A_RA[0..11]

A_CS_1

VREF

D_DQ9

A_DQ13

D_DQ31

F_A11

D_CAS_1

D_RA1

A_DQ14

FLASHVCC

D_RA10

D_RA2

D_RA10

A_DQ20

D_RA6

D_CLK_1

F_A10

D_DQ25

D_DQ24

SDV25

A_CLK_1

D_RA8

D_DQ16

A_DQ22

D_DQ30

D_DQ28

D_DQ8

D_DQ18

D_DQ11

D_DQM1

A_RA5

D_CKE

D_DQ19

D_RA10

D_DQ27

D_RA5

F_D0

A_CS_1

D_CS_1

D_CS_1

A_RA3

D_DQS3

A_DQM[0..1]

D_DQM0

D_RA7

D_DQ14

D1V25

D_DQ28

D_RA1

DV25B

D_RA9

F_A9

D_BA1

D_RA8

D_DQ8

IOA4

D_RA9

D_DQ6

D_RA2

D_CLK

D_DQS1

A_DQS1

A_RA2

IOA2

D_DQ29

D_DQ24

D_RA1

D_DQ4

D_WE_1

D_DQ23

PWR_1

A_RAS_1

D_DQ19

A_DQ15

F_D2

D_RAS_1

D_DQ10

D_RA10

A_CLK_1

D_DQ15

D_RA8

SDV25A

D_DQ21

A_DQ28

D_DQ16

D_RA9

D_DQ29

A_RA6

D_DQ16

D_DQ2

F_OE_1

F_A13

D_DQ2

D_RA3

D_DQ13

A_DQ6

D_DQS2

F_D4

F_A17

D_RA0

D_DQ10

D_CLK_1

D_DQ18

D_RA3

D1V25

D_DQ11

D_BA1

F_D6

A_DQS[0..3]

A_WE_1

DV25A

D_DQ1

D_RAS_1

A_DQ18

D_DQ31

A_BA1

A_CAS_1

D_DQ23

A_DQM1

A_DQ4

F_A21

A_DQ7

IOA1

A_DQ9

D_RA7

D_CKE

A_RAS_1

D_RA4

D_DQ27

D_RA0

A_DQ11

D_RA1

A_DQ30

D_DQS1

F_D1

D_DQ17

VREF

D_BA1

D_RA3

A_RA4

D_DQ9

D_RA4

D_RA8

A_RA0

A_DQ10

A_DQ1

D_DQ28

D_DQ22

SDV25A

VREF

A_DQ27

PCE_1

IOCE_1

PCE_1

D_DQ25

D_RA9

D_DQ3

D_DQ9

F_OE_1

A_DQ5

D_DQ12

D_DQ17

A_WE_1

D_DQ14

D_DQ7

D_DQ15

D_DQ11

A_RA11

D_BA0

D_RA7

A_RA8

D_RA2

D_DQ12

D_CLK_1

A_RA7

D_DQ22

D_DQS1

D_RA6

A_DQ31

D_RA0

D_WE_1

D_RA5

D_DQ6

A_BA0

A_DQ21

D1V25

F_A19

F_A18

IOA5

D_DQ18

D_DQS0

D_DQM1

A_CKE

DV25A

D_CAS_1

D_DQ24
D_DQ25

DV25B

D_DQ15

F_A20

DV25A

D_RA11

D_DQ4

D_DQS0

F_A12

D_RA6

IOWR_1

A_DQ23

D_DQ1

D1V25

D_DQ3

D_DQ6

VREF

F_D[0..7]

3

A_CAS_1

3

A_BA[0..1]

3

A_RAS_1

3

IOA[0..7]

3

VREF

3

IOWR_1

3

A_CLK_1

3

SDV25A

3

A_WE_1

3

A_RA[0..11]

3

IOCE_1

3

A_DQM[0..1] 3

A_DQS[0..3]

3

A_CS_1

3

A_DQ[0..31]

3

A_CKE

3

A_CLK

3

DV25A

3

F_OE_1

3

F_A[8..21]

3

DV25B

SB33B

DV25A

VCC

D1V25

DV25B

VREF

DV25B

SB33B

D1V25

SDV25A

SB33B

SB33B

DV25A

DV25B

DV25B

DV25B

VREF

DV25B

D1V25

A9105B_3V3

A9105B_2V5

A9105B_2V5

A9105B_3V3

C208

0.1U

C0603

R124

75

C155
0.1U

C143
0.1U

C152
0.1U

RP20

47x4

1

2

3

4

5

6

7

8

RP09

47x4

1

2

3

4

5

6

7

8

+

C193
470U/16V

C218

0.1U

R138

75

RP24

22x4

1

2

3

4

5

6

7

8

C161
0.1U

C172

3300P

C181
0.1U

R140

75

R121
0

R143

22

C163
0.1U

C150
0.1U

C145
0.1U

RP18

47x4

1

2

3

4

5

6

7

8

C170

3300P

R144

75

C180
0.1U

C199

0.1U

C0603

R123

22

C184
0.1U

C137

0.1U

C151
0.1U

C188
0.1U

I107

29LV160

25
24
23
22
21
20
19
18

8

9

28

47

16

29
31
33
35

7

26

38
40
42
44
30
32

10

36
39
41
43
45

37

27

11

15

34

46

6

4

5

3
2
1

48
17

13

12

14

A0
A1
A2
A3
A4
A5
A6
A7
A8

A19

OE

BYTE

A18

D0
D1
D2
D3

A9

CE

D4
D5
D6
D7
D8
D9

A20

D11
D12
D13
D14
D15

VCC

GND1

WE

RY/BY

D10

GND2

A10

A12

A11

A13
A14
A15
A16
A17

NC

RESET

WP/ACC

+

C175

470U/16V

C215

0.1U

RP07

47x4

1

2

3

4

5

6

7

8

R132

22

C164
0.1U

R137

22

C167

3300P

C194

0.1U

R145

150

C140
0.1U

C222
100U/16V

CE025063

C214

0.1U

C198

0.1U

C0603

RP12

47x4

1

2

3

4

5

6

7

8

L112

R121/0603

C171

3300P

R126

47

C158
0.1U

C147
0.1U

RP14

75x4

1

2

3

4

5

6

7

8

C139
0.1U

R239

1.21K1%

8M x 16

DDR

I109

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

66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34

VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
NC
VDDQ
LDQS
NC
VDD
DNU
LDM
WE
CAS
RAS
CS
NC
BA0
BA1
A10/AP
A0
A1
A2
A3
VDD

VSS

DQ15

VSSQ

DQ14
DQ13

VDDQ

DQ12
DQ11

VSSQ

DQ10

DQ9

VDDQ

DQ8

NC

VSSQ

UDQS

NC

VREF

VSS

UDM

CK
CK

CKE

NC

A12
A11

A9
A8
A7
A6
A5
A4

VSS

C179
0.1U

I149

AQ9105B

1

6

4

5

3

8

2

7

Vin

ADJ

GND

GND

VTT

VDDQ

Vin

VDDQ

+

C210

100U/16V

RP13

75x4

1

2

3

4

5

6

7

8

RP19

75x4

1

2

3

4

5

6

7

8

RP05

22x4

1

2

3

4

5

6

7

8

C189
0.1U

+

C192
47U/16V

ADJ

OUT

IN

I111

AMC7585-3.3V/TO252

3

2

1

4

R122

10K

C174

0.1U

C159
0.1U

R134

75

C207

0.1U

C0603

C148
0.1U

+

C212

470U/16V

RP16

47x4

1

2

3

4

5

6

7

8

R142

75

C144
0.1U

C202

0.1U

R125

47

C178
0.1U

C223
0.1U

C138
0.1U

C160
0.1U

R130

22

C204

0.1U

C209

0.1U

C0603

+

C219

100U/16V

R135

22

R128

47

C166

3300P

C185
0.1U

R120

10K

C177
0.1U

RP10

47x4

1

2

3

4

5

6

7

8

RP15

47x4

1

2

3

4

5

6

7

8

R131

75

C200

0.1U

C0603

C190

0.1U

+

C220

470U/16V

C203

0.1U

C141
0.1U

C176
0.1U

C201

0.1U

C0603

C142
0.1U

C216

0.1U

RP01

75x4

1

2

3

4

5

6

7

8

C168

3300P

C197
3300P

C0603

R240

1.15K1%

RP22

75x4

1

2

3

4

5

6

7

8

RP02

22x4

1

2

3

4

5

6

7

8

C165
0.1U

RP23

75x4

1

2

3

4

5

6

7

8

C169

3300P

RP04

75x4

1

2

3

4

5

6

7

8

C205

0.1U

RP08

75x4

1

2

3

4

5

6

7

8

C213
0.1U

C156
0.1U

C186
0.1U

C153
0.1U

C182
0.1U

R141

22

RP03

22x4

1

2

3

4

5

6

7

8

C149
0.1U

RP21

75x4

1

2

3

4

5

6

7

8

C206

0.1U

R136

75

C183
0.1U

R127

47

C162
0.1U

C146
0.1U

C217

0.1U

C196
3300P

C0603

R129

75

C211
0.1U

RP11

75x4

1

2

3

4

5

6

7

8

8M x 16

DDR

I108

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

66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34

VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
NC
VDDQ
LDQS
NC
VDD
DNU
LDM
WE
CAS
RAS
CS
NC
BA0
BA1
A10/AP
A0
A1
A2
A3
VDD

VSS

DQ15

VSSQ

DQ14
DQ13

VDDQ

DQ12
DQ11

VSSQ

DQ10

DQ9

VDDQ

DQ8

NC

VSSQ

UDQS

NC

VREF

VSS

UDM

CK
CK

CKE

NC

A12
A11

A9
A8
A7
A6
A5
A4

VSS

C195

0.1U

L220

SG20

C157
0.1U

C191
0.1U

C173

3300P

RP17

75x4

1

2

3

4

5

6

7

8

R139

22

RP06

75x4

1

2

3

4

5

6

7

8

C187
0.1U

C154
0.1U

ViewSonic Corporation

                                                         

Confidential - Do Not Copy

       

N2752w-1M

 

67

Summary of Contents for N2752w-1M

Page 1: ...Service Manual ViewSonic N2752w 1M Model No VS11257 1M 27 LCD TV N2752w 1M_SM Rev 1b_Aug 2008 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 ...

Page 2: ...chantability 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 ...

Page 3: ...cuit Description 24 5 Adjusting Procedure 28 6 Trouble Shooting Flow Chart 58 7 Block Diagram 62 8 Schematic Diagrams 63 9 PCB Layout Diagrams 91 10 Exploded Diagram And Exploded Parts List 97 11 Recommend Spare Parts List 100 ViewSonic Corporation Confidential Do Not Copy N2752w 1M ii 2 Specification 4 ...

Page 4: ...ting from input connector 3 Wipe off water drop immediately Long contact with water may cause discoloration or spots 4 When the panel surface is soiled wipe it with absorbent cotton or other soft cloth 5 Since the panel is made of glass it may break or crack if dropped or bumped on hard surface 6 Since CMOS LSI is used in this module take care of static electricity and insure human earth when hand...

Page 5: ...hods Correct Methods Incorrect Methods Only touch the metal frame of the LCD panel or the front cover of the monitor Do not touch the surface of the polarizer Surface of the LCD panel is pressed by fingers and that may cause Mura Take out the monitor with cushions Taking out the monitor by grasping the LCD panel That may cause Mura ViewSonic Corporation Confidential Do Not Copy N2752w 1M 2 ...

Page 6: ...Place the monitor on a clean and soft foam pad Placing the monitor on foreign objects That could scratch the surface of the panel or cause Mura ViewSonic Corporation Confidential Do Not Copy N2752w 1M 3 ...

Page 7: ...g Sag or Smearing artifacts when driven by the specified video cards see 7 1 General Test Equipment in the primary mode VGA at 60 Hz and after user adjustment b No image drift or lose fine tune settings due to panel temperature change Note Panel performance characteristics MUST BE met in all display modes inputs at standard test conditions 1 RF Tuner RF tuner of this product shall be provided by P...

Page 8: ... this product The audio signals of this product shall comply with the specification listed in the following table Parameter Specification Phone Jack out Tuner Input Base band Input Speaker Power Output Max Rating 10 W x 2 at 10 T H D Distortion 10W x 2 at 10 T H D Distortion Speaker Impedance main spk 3 Ω 3 Ω Treble spk 5 2 Ω main spk 3 Ω 3 Ω Treble spk 5 2 Ω Line In Per Tuner Spec 500 mV rms Typ ...

Page 9: ...version of V P01 Any changes revisions afterward shall also be pre approved by ViewSonic in written For VS11257 1M VS11335 1M its firmware shall have a built in frequency table for NTSC ATSC off air TV CATV Closed Caption and with MTS implementation All audio video and other output adjustments shall be performed by using an On Screen Display OSD via a Remote Control Unit RCU adjustments The follow...

Page 10: ...ide Adjust image size on Full Wide1 Wide2 Wide3 4 3 16 9 No scale Normal Enter Confirm the selection PIP POP Toggle to select PIP or POP function P Pos Adjust picture position of sub source during in PIP P size Adjust image size of sub source during in PIP Swap Switch between main screen and sub screen during in PIP or POP P input Sub source selection during in PIP or POP C C Displaying captions d...

Page 11: ...ted Parts Bird Logo Recess Artwork shall be provided and confirmed by ViewSonic Rear Label A label identifying the product name model serial number and FCC ID Logo shall be placed into the rear label recess located on the rear panel of the chassis Wall Mount 200mmx100mm VESA high hole n 6 M4 x 10mm pitch 0 75mm screw mounting kit not included Sample Sample of textured color chips plastic material ...

Page 12: ... or select a control while in OSD menu ENTER To highlight a control in OSD menu Power ON OFF button Power LED Indicator Remote Control Receiver 1 3 2 4 5 6 7 8 Note 1 Press VOL and MENU buttons at the same time to lock power button and press VOL and MENU buttons again to unlock it 2 Press VOL and VOL buttons at the same time to lock OSD menu and press VOL and VOL buttons again to unlock it Manufac...

Page 13: ...device Composite Video input Connect this port to the composite video output of A V device Audio output Connect this port to your A V device with audio in RCA connectors or to audio amplifier PC Audio input Connect this port to PC line out jack VGA signal input Connect this port to the VGA output of your PC HDMI Input Terminal Connect this port to the HDMI output of A V device SPDIF Optical output ...

Page 14: ...Remote Control ViewSonic Corporation Confidential Do Not Copy N2752w 1M 11 ...

Page 15: ...C C Displaying captions during closed caption source and closed caption mode select 16 P SIZE Adjust sub screen window size 17 MUTE Volume mute ON OFF 18 TV DTV Swap between TV DTV Swap to TV when in other source 19 PICTURE Select picture modes 20 RETURN Return to previous channel 21 CH and CH Adjust Channel UP DOWN 22 FAV CH Select from preset Favorite Channels 23 MENU On Screen Display OSD menu ...

Page 16: ...st be set to the User mode Select through the Picture button on the remote control Audio Menu To set the audio quality and status Audio Menu is active in all but the VGA input source Bass To adjust bass Treble To adjust the treble Balance To adjust left and right audio balance Surround To enjoy a concert hall effect select On when stereo is playing Audio Out To control sound output ON OFF from the...

Page 17: ...pointed or select Add to restore the channel appointed Channel Edit Press ENTER to edit a name for the channel appointed Use to select the letters you want and use BackSpace key to delete backwards Move the cursor to OK and then press ENTER to complete and save the channel name To cancel editing choose Cancel or exit without pressing OK Setup Menu To set up OSD window Setup Menu is active in all i...

Page 18: ...K to confirm or Cancel to exit Note Please make sure you remember your new password after changing If the password is forgotten or missing please use the remote control to enter 8866 to clean the password and reset a new one Clear All To clear all the locks set before press ENTER Press MENU to return to the previous page Color Temperature To select the color temperature from Warm Cold Normal or Use...

Page 19: ...sh Time Zone To select Time Zones SPDIF Type To select the type of audio transfer file format Auto Scan Press ENTER to start scanning DTV channels automatically Press MENU at any time to cancel Auto Scan Manual Scan To scan the DTV channels manually Press ENTER and select Scan Mode with ViewSonic Corporation Confidential Do Not Copy N2752w 1M 16 ...

Page 20: ... Mode use and number buttons to set the scanning range Press ENTER to start scanning and press MENU at anytime to cancel scanning Channel Skip To skip channels when viewing channels with CH and Press ENTER and then use ENTER to check uncheck the channel you want to skip ViewSonic Corporation Confidential Do Not Copy N2752w 1M 17 ...

Page 21: ...from As Broadcaster or Custom When Custom is selected use to select the desired controls to adjust detailed settings Font Size To select a font size from Large Small or Medium Font Color To select a font color from Black White Green Blue Red Cyan Yellow or Magenta Font Opacity To select font opacity from Solid Translucent or Transparent Background Color To select background color Background Opacit...

Page 22: ...he picture V Chip Menu V Chip is transmitted from TV station to help parents monitor what their children watch According to the pre set of factory viewers can see all of the channels However setting V Chip can block the appointed channels To set up V CHIP function Press V CHIP button enter the password press ENTER and the following screen will be displayed Note The factory default of the password ...

Page 23: ...owing Use ENTER button to block or unblock the ratings and use MENU to exit TV Y All children TV PG Parental guidance suggested TV Y7 Directed to older children this program is designed for children age 7 and above TV 14 Parents strongly cautioned this program contains some material that is unsuitable for children under 14 years of age TV G General audience TV MA Mature audience only G General aud...

Page 24: ...ock or unblock the ratings and use MENU to exit Block MPAA Unrated To block unrated movies Block TV None Rating To block unrated TV programs Notes Initial password 0000 If you forget your initial password you can press 8866 to resume CE_E Exempt CE_PG Parental guidance CE_C Children CE_14 Viewers 14 years and older CE_C8 Children eight years and older CE_18 Adult programming CE_G General programmi...

Page 25: ... 2 Use to select the sub input source and press ENTER to confirm Note To select the input source for main screen press INPUT button SWAP Press SWAP to exchange main screen to sub screen including video and sound The function is available both in PIP and POP PIP Screen POP Screen Main Screen Available Sub Screen Input Source TV DTV HDMI YPbPr VGA DTV TV YPbPr AV S Video VGA HDMI TV YPbPr AV S Video ...

Page 26: ...een The function only acts on PIP Note that the screen indexed with the pink frame is the screen you select to set up Use to move the index between the main screen and the sub screen ViewSonic Corporation Confidential Do Not Copy N2752w 1M 23 MENU Lock Un lock Pressing Vol and Vol from Front Panel Keys POWER Lock Un lock Pressing Vol and MENU from Front Panel Keys ...

Page 27: ...ts and route them into Main and PIP data path B 3D comb filter Video Decoder Deinterlacer and Scaling controller MT8202 includes 3D comb filter TV decoder to retrieve the best image from popular composite signals Embedded HDTV VGA decoders let the high bandwidth input signals perfectly reproduced 24 16 8 bits digital port may accept all kinds of external digital input video source New 2nd generati...

Page 28: ...respectively The control voltages are converted to analog signals through the on chip 1 bit sigma delta D A converters plus the off chip R C low pass filters The automatic gain control keeps the received power level at a desired level and maximizes the received SNR The MT5351AG is a DTV Backend Decoder SOC which support flexible transport demux HD MPEG 2 video decoder JPEG decoder MPEG1 2 MP3 AC3 ...

Page 29: ...C interface CP10 interface HDMI_HPD TMDS0 3 HDMI_PLUG_POWER MT8293 has 3 I2C interfaces LCD Controller IC use the CSDL CSDA interface to access MT8293 registers MT8293 use KSDL KSDA interface to read HDCP key from the EEPROM HDMI transmitter use DSDL DSDA to access MT8293 HDCP related register HDMI Transmitter will pull high HDMI_PLUG_POWER pin 18 in connector when the cable is connected LCD Contr...

Page 30: ...D12250 converts stereo single ended analog input signals into 24 bit I2S digital audio data through on chip anti aliasing filter multi bit Σ Δ modulator decimation filter and high pass filter which removes dc offsets External analog audio signal such as AV S video etc is directly fed into AD12250 via a audio switch and converted to I2S digital audio data Digital audio such as HDMI and DTV have dec...

Page 31: ...T A Timing 1366 768 60Hz B Pattern 16 12 pane C Press POWER and ENTER at the same time then go into the FACTORY MODE Fig 1 fig 2 D Figure 1 Select EEPROM INITIAL and press ENTER The act of EEPROM INITIAL is completed when EEPROM INIT disappeared 1 4 2 COLOR TEMPERATURE ADJUSTING PC MODE A Timing 1360 768 60Hz B Pattern 16 grey scale C LCD TV should be run in and warmed up for at least 30 minutes D...

Page 32: ...each MODE We can t switch over to the next MODE until AUTO ADJUST disappears 1 4 5 HDMI MODE FUNCTION TEST A DVI MODE Depend on the TIMING of TIMING TABLE TABLE 3 to check MODE in order B HDMI MODE make sure the 480i 480p 720p 1080i TIMING is right 1 4 6 OSD FUNCTION TEST A Time 1360x768 60Hz B Pattern 16 12 pane C Make sure that Each FUNCTION has one right action 1 4 7 DTV FUNCTION TEST A Select ...

Page 33: ...ST Under PC MODE input PC AUDIO signal determines whether the action of INT SPEAKER output is right Meets earphone with the EARPHONE Determined whether the action of EARPHONE output is normal 1 4 11 All Modes Reset After final QC step we must to erase all saved changes again and restore the factory defaults You should do All Mode Reset again Turn off the LCD TV by pressing Power button ViewSonic C...

Page 34: ...5 589 75 595 75 601 75 607 75 613 75 619 75 625 75 631 75 637 75 643 75 101 00 107 00 113 00 123 00 129 00 221 00 227 00 233 00 239 00 245 00 251 00 257 00 517 00 523 00 529 00 535 00 541 00 547 00 553 00 559 00 565 00 571 00 577 00 583 00 589 00 595 00 601 00 607 00 613 00 619 00 625 00 631 00 637 00 643 00 649 00 655 00 661 00 667 00 673 00 679 00 685 00 43 44 45 46 47 48 49 50 51 52 53 54 55 56...

Page 35: ...7 00 263 00 269 00 275 00 281 00 287 00 293 00 299 00 305 00 311 00 317 00 323 00 329 00 335 00 341 00 347 00 353 00 359 00 365 00 371 00 377 00 383 00 389 00 395 00 JJ KK LL MM NN OO PP QQ RR SS TT UU VV WW AAA BBB CCC DDD EEE 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 354 360 360 366 366 372 3...

Page 36: ... to noise ratio is under LEVEL 60dBu regards as normally PRODUCTS OUTPUT CHECK ITEM A The same as CENTRALISM TRANSMITTING SIGNAL CHECK CONTENT B saturation TEST inputs the TV signal the input signal LEVEL establishment most greatly is 90dBu check whether CONTRAST of the image is normal Whether appears the disturbance phenomenon C AFT CHECK 1 The frequency of the input TV signal is 211 25MHz CH13 a...

Page 37: ... Width 0 064ms 0 080ms 0 106ms 0 064ms V Border 0 254ms 0 000ms 0 000ms 0 000ms H V Sync Interlace No No No No ITEM 5 6 7 8 TIMING 1024 768 60HZ 1024 768 75HZ 1280 720 60HZ 1280 768 60HZ Pixel Rate 65 000MHZ 78 750MHZ 74 250MHZ 65 000MHZ H TOTAL 20 677us 16 660us 22 222us 20 677us H DISPLAY 15 754us 13 003us 17 239us 15 754us H B Porch 2 462us 2 235us 2 936us 2 462us H Width 2 092us 1 219us 1 007u...

Page 38: ... 959us 15 630us H DISPLAY 15 906us 11 852us H B Porch 2 994us 2 296us H Width 1 310us 1 037us H Border 0 000us 0 000us V TOTAL 16 662ms 16 661ms V DISPLAY 16 097ms 16 005ms V B Porch 0 377ms 0 594ms Vs Width 0 126ms 0 047ms V Border 0 00ms 0 00ms H V Sync Interlace No No ViewSonic Corporation Confidential Do Not Copy N2752w 1M 35 ...

Page 39: ...t conform to the LCD TV you have to do the DDC key in 2 1 Equipment Needed N2752W LCD TV DDC Card PC RS 232 cable Barcode Reader VGA Cable N2752W LCD TV DDC Card PC RS 232 Cable VGA Cable Barcode Reader 2 2 Setup Procedure 2 2 1 Connect VGA Card and DDC Card with RS 232 cable ViewSonic Corporation Confidential Do Not Copy N2752w 1M 36 ...

Page 40: ...mation use VGA transform to DVI port 2 2 4 Connect Power Cord to N2752W LCD TV 2 3 DDC Key In Procedure 2 3 1 Run DDC exe 2 3 2 Choose model number and conform the Time then Press ENTER key 2 3 3 When appear the PIC choose DDC Card Press ALT 2 Enter DDC 2B test interface Choose DDC Card ViewSonic Corporation Confidential Do Not Copy N2752w 1M 37 ...

Page 41: ...2 3 4 Press F8 to choose corresponding model DAT N2752W A DAT press ENTER key 2 3 5 Press F9 enter the download interface ViewSonic Corporation Confidential Do Not Copy N2752w 1M 38 ...

Page 42: ...ber or use the barcode reader to scan the barcode of the LCD TV and press ENTER key 2 3 7 The successful picture is as follows Compare EDID OK Press any key to continue ViewSonic Corporation Confidential Do Not Copy N2752w 1M 39 ...

Page 43: ...Sonic EDID Editor Connect the N2752W LCD TV to PC with VGA Cable Execute the EDID Editor then Press Ctrl F5 If the DDC is correct you can see the information as follow ViewSonic Corporation Confidential Do Not Copy N2752w 1M 40 ...

Page 44: ...d N2752W LCD TV PC RS 232 cable Barcode Reader HDMI Cable N2752W LCD TV PC RS 232 Cable HDMI Cable Barcode Reader 3 2 Setup Procedure 3 2 1 Connect HDMI Card and DDC Card with RS 232 cable ViewSonic Corporation Confidential Do Not Copy N2752w 1M 41 ...

Page 45: ...th keyboard and PC keyboard port 3 2 3 Connect DDC Card and N2752W LCD TV with HDMI Cable 3 2 4 Connect Power Cord to N2752W LCD TV 3 3 DDC Key In Procedure 3 3 1 Run DDC exe ViewSonic Corporation Confidential Do Not Copy N2752w 1M 42 ...

Page 46: ...3 3 2 Choose model number then 3 3 3 Press ENTER key ViewSonic Corporation Confidential Do Not Copy N2752w 1M 43 ...

Page 47: ...3 3 4 Input barcode 3 3 5 Press ENTER key then the successful picture is as follows DDC DOWNLOED OK 3 3 6 Exit program ViewSonic Corporation Confidential Do Not Copy N2752w 1M 44 ...

Page 48: ...gram execution N2752W ISP FIXTURE PC 4 2 Installing the USB device driver The USB driver will be upgraded if necessary PL 2303 Driver Installer exe 4 3 Insert the USB to RS232 Download Board to PC s USB port Then you can found the USB Device detected and follow Windows comments to finish the Driver install 4 4 Execute the Mtktool to start download the file The Mtktool program will be upgraded if n...

Page 49: ...4 5 2 Select COM port Depends on the COM port assigned in System Device Manager Refer below right 4 5 3 Select Baud Rate 115200x 8 Suggestion ViewSonic Corporation Confidential Do Not Copy N2752w 1M 46 ...

Page 50: ...4 5 4 Enable the USB Bridge 4 5 5 Browsing the File to download ViewSonic Corporation Confidential Do Not Copy N2752w 1M 47 ...

Page 51: ...n your platform and Mtktool 2 You can slow down the baud rate if some Flash memory can not works properly in high speed download 3 Please call the MediaTek contact window if any problem found like unsupported Flash Type or fail to download ViewSonic Corporation Confidential Do Not Copy N2752w 1M 48 ...

Page 52: ...the cushions on the LCD TV Figure 3 1 4 Place the LCD TV into the carton and then Put the other cushions on the LCD TV put all the accessories into the carton At last close the carton and seal it with tape Figure 4 Figure 4 Figure 3 Figure 1 Figure 2 1 Power Cord 2 VGA Cable 3 RF Cable 4 RCA Cable 5 User s Guide 6 Remote contrl 7 Guarant Card 8 Battery ViewSonic Corporation Confidential Do Not Cop...

Page 53: ... 00008114 2001131622P OWNER GUIDE 1 8 DC 00008115 2002310600P GUARANT CARD QSG 1 9 A 00005362 2427130046P AC POWER CORD 1 10 CB 00003425 2427701893P RCA CABLE 1 11 CB 00008039 2427740321P RF CABLE 1 12 A VC 0101 0386 2427501187P VGA CABLE 1 13 P 00004497 2011100017P CARTON BOX 1 14 P 00008116 2011127038P CARTON BOX 1 15 N A 2055632224P LABEL 1 16 A 00008045 2005100500P BATTERY 2 17 A 00005500 2419...

Page 54: ...e 1 Disassembly of Stand and Dust Cover from LCD TV 1 1 Detach Dust Cover from the LCD TV and Unscrew 4 screws that secure Stand Unit Stand Dust Cover Dust Cover ViewSonic Corporation Confidential Do Not Copy N2752w 1M 51 ...

Page 55: ... screws to remove Rear Cover 3 Disassembly of Main Board Power Board IR Board Speaker Front Cover and Panel Unit 3 1 Unscrew 13 screws to remove Shield Plate and dust cover Rear Cover ViewSonic Corporation Confidential Do Not Copy N2752w 1M 52 ...

Page 56: ...3 2 Unscrew 4 screws to remove Speaker 3 3 Unscrew 10 screws to remove Bracket Fix Shield Plate Dust Cover Speaker ViewSonic Corporation Confidential Do Not Copy N2752w 1M 53 ...

Page 57: ...3 4 Unscrew 15 screws to remove METAL FITTG IO METAL FITTG I O Down ViewSonic Corporation Confidential Do Not Copy N2752w 1M 54 ...

Page 58: ...3 5 Unscrew 5 screws and disconnect the wires to remove Main Board METAL FITTG I O Side Main Board ViewSonic Corporation Confidential Do Not Copy N2752w 1M 55 ...

Page 59: ...3 6 Unscrew 4 screws and disconnect the wires to remove Power Board 3 7 Unscrew 2 screws to remove Front Cover Power Board ViewSonic Corporation Confidential Do Not Copy N2752w 1M 56 ...

Page 60: ... Lay Panel Unit facedown and unscrew 9 screws on its right left up and down sides to remove Panel Unit and Panel Bracket Panel Bracket Panel Unit ViewSonic Corporation Confidential Do Not Copy N2752w 1M 57 ...

Page 61: ...EO YPbPr No Check I106 has I2S signal output to I145 No Yes Yes Check I135 is defective Replace I135 Yes Check I136 is defective Replace I136 Yes Check Pin37 of I145 is high Check Earphone circuit Yes Check I145 is defective Replace I145 Yes Check Speaker Wire No Replace I106 No Yes No Yes No ViewSonic Corporation Confidential Do Not Copy N2752w 1M 58 ...

Page 62: ...es Yes Replace I106 I107 START Check X100 is OK Replace I101 Replace I102 No No No Replace IR Board Replace x100 No No Check Wire Connection on power board is OK Replace Power Board Connect the wire Yes No Yes Check IR Board ViewSonic Corporation Confidential Do Not Copy N2752w 1M 59 ...

Page 63: ...70 C331 is OK Replace L215 R501 R170 or C331 No Check I106 has output signal at Pin11 16 and Pin19 22 of P114 Replace I106 No Check the LVDS wire from P114 to panel is OK Replace LVDS Wire No Check inverter wire from power board to panel is OK Replace Inverter Wire No Replace Panel Check L226 R203 C335 is OK AV Replace L226 R203 or C335 No No Yes Yes Yes Yes Yes No Yes Yes Yes ViewSonic Corporatio...

Page 64: ...t RP32 RP41 Replace I127 No No Yes Yes Yes Yes Yes Check 27MHz is on Pin4 of I115 Check I106 No Check I114 is defective Replace I114 Yes Check I115 has output signal at RP25 RP30 Replace I115 Yes No Yes Yes No Check I106 has output signal at Pin11 16 and Pin19 22 of P114 Replace I106 No Check the LVDS wire from P114 to panel is OK Replace LVDS Wire No Check inverter wire from power board to panel ...

Page 65: ... CVBS S Video2 YPbPr AV SV Audio RCAx2 PC DVI Audio mini jack YPbPr Audio RCAx2 DDR SDRAM Flash PC D Sub HDMI Connector MT5111 Demod NTSC Tuner ATSC RF Tuner MT5351 Mpeg decoder DDR SDRAM Speaker Flash DDR SDRAM DDR SDRAM SPDIF Optical HDCP EEPROM ViewSonic Corporation Confidential Do Not Copy N2752w 1M 62 ...

Page 66: ... 8 7 6 1 E B C SOT 23 Q102 MMBT3904 1 3 2 R105 NC 47K R103 4 7K C104 1U P100 CON_ 2 5mm_12 1 2 3 4 5 6 7 8 9 10 11 12 R102 10K L234 R201 0805 R514 100K R104 47K C105 1000U 16V LowESR C100 0 1U C107 0 1U L218 R201 0805 R110 4 7K H101 HOLE GND 2 3 4 5 9 8 7 6 1 2 3 4 5 9 8 7 6 1 I100 AP9435M 1 8 2 7 3 6 4 5 S D S D S D G D E B CSOT 23 Q103 MMBT3904 1 3 2 R111 1K E B C SOT 23 Q101 MMBT3904 1 3 2 R108...

Page 67: ...N I102 AZ1117 adj 3 2 1 4 C121 100U 16V C116 0 1U L109 R121 0805 I101 AP1510 1 8 2 7 3 6 4 5 FB VSS EN VSS OCSET Output VCC Output R515 3 9K R517 3 65K 1 ADJ OUT IN I104 AIC117 1 8V SOT223 3 2 1 4 R528 60 4 1 C108 47U 16V C127 0 1U C134 0 1U C129 0 1U D152 SR54 1 2 C118 100U 16V C122 220U 16V L104 R121 0603 C782 0 1U C0603 C126 0 1U C115 100U 16V R527 110 1 L108 R60 0603 C781 0 1U C0603 C131 100U ...

Page 68: ...O11 24 SCL1 11 AADCVSS 5 8 19 22 UP3_0 24 A_CS_1 4 SY0 8 ERO3_GPIO 21 AOSDATA5 22 VIDEO_OUT 22 CCIR_GPIO_D 10 SDA0 11 SCL0 11 AUD_CTRL 11 SB33B SB18A DV33A SB33B SB33B DV18A SB33B SB33A TP14 TP34 TP07 TP38 TP11 TP20 R118 10K TP31 TP16 R114 820K TP36 TP28 TP08 R116 NC 10K TP09 X100 27MHz TP17 R119 10K TP18 TP01 TP27 TP13 TP03 C136 33P TP02 TP33 TP19 R117 1K TP15 TP10 MT8202 SOCKET I106 MT8202 BGA38...

Page 69: ...2 3 25 TESTP3 3 ADACVDD 3 ADCVDD 3 LVDDB 3 REFP 3 PLLVDD3 3 TESTP4 3 AADCVDD 3 TESTN3 3 GNDA 3 8 19 22 LVDDA 3 REFN 3 PLLVDD1 3 AVDD_VAD0 3 DACFS 3 AVDD_VAD1 3 AV33A AV33A ASB33A ADCV33A ADCV18A ASB18A ASB18A ADCV33A ADCV33A AV18A C284 4 7U L120 R60 0603 C265 1U R148 820 C251 10U 10V C0805 C262 4 7U C246 4 7U C224 0 1U C241 0 1U C0603 C233 0 1U C0603 L115 R60 0603 L122 R60 0603 C260 4 7U C275 1U C...

Page 70: ... 1U C150 0 1U C145 0 1U RP18 47x4 1 2 3 4 5 6 7 8 C170 3300P R144 75 C180 0 1U C199 0 1U C0603 R123 22 C184 0 1U C137 0 1U C151 0 1U C188 0 1U I107 29LV160 25 24 23 22 21 20 19 18 8 9 28 47 16 29 31 33 35 7 26 38 40 42 44 30 32 10 36 39 41 43 45 37 27 11 15 34 46 6 4 5 3 2 1 48 17 13 12 14 A0 A1 A2 A3 A4 A5 A6 A7 A8 A19 OE BYTE A18 D0 D1 D2 D3 A9 CE D4 D5 D6 D7 D8 D9 A20 D11 D12 D13 D14 D15 VCC GN...

Page 71: ...0603 C288 3300P C0603 C301 0 1U C0603 C304 0 1U C295 3300P C0603 C290 0 1U C0603 C296 3300P C0603 C305 0 1U C302 0 1U C0603 C286 0 1U C306 0 1U C291 0 1U C0603 C297 3300P C0603 C287 0 1U C294 0 01U C0603 C298 3300P C0603 C303 0 1U C0603 C292 0 1U C0603 C300 100U 16V ViewSonic Corporation Confidential Do Not Copy N2752w 1M 68 ...

Page 72: ...MPX1 7 MPX1 3 PR0 3 AADCVSS 3 5 19 22 SOY0 3 AVSY0 9 AVPR0P 9 VFE_GND1 2 3 5 19 AVPR0N 9 SY0 3 AVPB0N 9 TUMPX2 7 CVBS0 3 SC0 3 PB0 3 AVSOY0 9 CVBS1 3 PB0 3 AVY0P 9 AVCVBS1 9 Y0 3 AVPB0P 9 AVSC0 9 PR0 3 AVY0N 9 AVCVBS0 7 MPX2 3 C339 0 01U R181 100 C352 15P C340 0 047U C334 0 01U C353 15P C343 0 01U C341 15P R184 39K R178 100 R174 NC R177 NC R179 NC C347 15P C346 330P C333 330P C349 56P C338 0 01U R...

Page 73: ... SB33B 10 26 TUMPX1 8 VCC DV33B SB33B DV33B VCC VCC Q105 2N7002 1 3 2 C308 NC uF L213 SG20 C330 47U 16V CE025050 C772 0 1U R157 0 R501 0 L125 2 2uH I112 FQ1236 F H 5 TH1 TH2 3 4 6 5 11 9 10 12 TH3 TH4 14 13 1 2 7 8 GND1 GND2 VS_TUNER SCL AS SDA 2nd SIF OUT AF R AF L CVBS GND3 GND4 AF MPX VS_IF NC NC NC NC R155 10K C773 3300P C775 1U R156 0 Q104 2N7002 1 3 2 L215 10uH 0805 L126 2 2uH C777 3300P C76...

Page 74: ...SY0R_IN 20 YPBPR0L_IN 20 AVPR0P 8 AVY0N 8 AVSY0 8 AVPB0N 8 AVCVBS1 8 YPBPR0R_IN 20 AV0SY0L_IN 20 AVPB0P 8 AVY0P 8 AVSOY0 8 AVPR0N 8 AV0SY0L_IN 20 AV0SY0R_IN 20 YPBPR0L_IN 20 YPBPR0R_IN 20 R534 0 D103 5 6V 1 2 D104 NC 5 6V 1 2 R194 75 L221 2 2uH R185 0 P103 S_TERMINAL1 6 1 8 2 5 3 4 7 R201 75 R195 100K D108 5 6V 1 2 R535 0 R187 100K D100 5 6V 1 2 R189 100K D105 5 6V 1 2 L224 2 2uH D102 NC 5 6V 1 2 ...

Page 75: ...3x4 1 2 3 4 5 6 7 8 TP44 C403 1000P C402 0 1U TP41 TP60 R220 2 2K RP28 33x4 1 2 3 4 5 6 7 8 TP50 C372 1000P Q108 MOSFET N 2SK2158 SOT23 1 3 2 C397 0 1U L146 R60 0603 C406 0 1U C358 10U 50V TP55 D121 NC 3 1 2 C359 100U 16V RP27 33x4 1 2 3 4 5 6 7 8 C367 1000P R209 4 7K R300 100K TP51 C411 0 01U C405 1000P R207 0 C369 0 1U RP26 33x4 1 2 3 4 5 6 7 8 Q109 MOSFET N 2SK2158 SOT23 1 3 2 C371 0 1U C409 10...

Page 76: ...33 VI18 SCL1 VOR0 AO1MCLK 8293LRCK 8293SD0 8293BCLK 8293MCLK AO1LRCK AO1SDATA0 AO1MCLK AO1BCK HDMISD0 HDMILRCK HDMIMCLK HDMIBCLK AUD_CTRL AUD_CTRL 8293BCLK 8293MCLK 8293LRCK 8293SD0 VOHSYNC 15 AO1LRCK 15 DTVU0RX 26 HDMIMCLK 3 10 VI 0 23 3 10 12VSS 12 AO1SDATA0 15 SDA1 3 REQUEST_1 15 VOVSYNC 15 READY_1 15 SCL1 3 ORESET_1 14 15 17 HDMIVSYNC 3 10 GPIO3 3 VODE 15 HDMIODCK 3 10 DV33 12 15 17 18 U2TX 15...

Page 77: ...0 1U C0603 R232 0 R0603 C424 0 1U C0603 C422 220U 16V CE050080 L154 R121 0805 L0805 C435 0 1U C0603 L158 10uH DRWW9 12 0 6mm I123 Regulator AP1522 SOT23 5 SMD 1 2 3 4 5 SW GND FB SHDN V_IN R532 1 2K 1 L153 R121 0603 L0603 L235 R121 0805 L0805 C789 0 1U C0603 C785 100U 16V CE025063 L151 30uH 0 7m m C427 100U 16V CE025063 C784 0 1U C0603 C429 0 1U C0603 C419 0 1U C423 0 1U C0603 C786 0 1U C0603 R231...

Page 78: ..._IF 14 30V_TUNER 5V_TUNER C315 0 01U C0603 I124 PORT TUNER DTVS203CH201M TH1 TH2 TH3 TH4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 TH5 TH6 TH7 TH8 GND GND GND GND NC NC NC NC NC NC RG_AGC_TP NC VT 30V IF IF IF_AGC TUNER_IF_TP SCL SDA GND BP 5V NC AFT SIF CVBS GND GND GND GND L156 SG20 1H L0805 R160 100 R0603 C311 0 1U C0603 L157 SG20 L0805 R162 100 R0603 C314 10U 50V CE025050 C313 0 1U...

Page 79: ...U C0603 R244 4 7K R0603 L162 R60 0603 L0603 C465 0 1U C0603 L163 R60 0603 L0603 C468 0 1U C0603 C483 0 1U C0603 C452 0 047U C0603 C472 0 1U C0603 C488 0 1U C0603 C474 0 1U C0603 C455 1U C0603 C471 0 1U C0603 C486 0 1U C0603 L164 R121 0805 L0805 C475 0 1U C0603 RP42 33x4 RN 8P4R 1 2 3 4 5 6 7 8 R246 1M R0603 C464 0 1U C0603 C460 0 1U C0603 R252 10 R0603 R251 10 R0603 RP43 33x4 RN 8P4R 1 2 3 4 5 6 7...

Page 80: ...E26 E27 E28 F25 F26 F27 F28 G25 G26 G27 G28 H25 H26 H27 H28 J25 J26 J27 J28 K25 K26 K27 K28 L25 L26 L27 L28 M25 M26 M27 M28 N25 N26 N27 N28 P25 P26 P27 P28 T28 T27 T26 T25 U28 U27 U26 U25 V28 V27 V26 V25 W28 W27 W26 W25 Y28 Y27 Y26 Y25 AA28 AA27 AA26 AA25 AB28 AB27 AB26 AB25 AC28 AC27 AC26 AC25 T11 T12 T13 T14 T15 T16 T17 T18 U11 U12 U13 U14 U15 U16 U17 U18 V11 V12 V13 V14 V15 V16 V17 V18 AE8 AE9 ...

Page 81: ...U C0603 C541 0 1U C0603 C430 0 1U C0603 C535 0 1U C0603 R282 47 RP51 47x4 1 2 3 4 5 6 7 8 C517 0 1U C0603 RP48 75x4 1 2 3 4 5 6 7 8 C525 0 1U C0603 RP68 75x4 1 2 3 4 5 6 7 8 C502 0 1U C0603 C494 0 1U C0603 C518 0 1U C0603 I128 16M x 16 DDR TSOP 66 TSOP66 SMD 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 49 50 ...

Page 82: ...2 15 U2TX 11 15 ORESET_1 11 14 15 DV33 DV33 DV33 DV33 DV33 DV33 DV33 R303 4 7K R0603 R295 NC 4 7K R0603 TP68 U1RX TP SMD D0 6 C550 0 1U C0603 R299 4 7K R0603 TP78 JTDO TP SMD D0 6 TP75 JTMS TP SMD D0 6 L168 R121 0603 L0603 TP69 U1TX TP SMD D0 6 R292 NC 4 7K R0603 R309 4 7K R0603 R298 4 7K R0603 TP73 JTRST_1 TP SMD D0 6 R294 0 R0603 TP76 JTCK TP SMD D0 6 R293 NC 4 7K R0603 R296 4 7K R0603 I131 IC F...

Page 83: ...603 C560 4 7U C0805 R314 47 R0603 C568 0 1U C0603 C603 0 1U C0603 C582 0 1U C0603 C588 0 1U C0603 C557 1500P C0603 C566 4 7U C0805 C601 4 7U C0805 C602 0 1U C0603 C579 0 1U C0603 C552 5600P C0603 C555 1n C0603 C561 0 1U C0603 C592 0 1U C0603 C788 22P C0603 C596 0 1U C0603 R319 100 R0603 C587 0 1U C0603 C590 0 1U C0603 L170 R60 0603 L0603 C581 0 1U C0603 C578 0 1U C0603 R320 100 R0603 R315 NC 10 R0...

Page 84: ...68 D134 5 6V 1 2 D132 5 6V 1 2 C610 0 01U R340 510 R328 75 C623 0 01U C615 0 01U D125 5 6V 1 2 L231 SC20 C621 5P R348 2K R324 100 R333 NC 10K D133 NC 5 6V 1 2 R327 68 I133 24C21 SMD DIP 1 2 3 4 5 6 7 8 NC1 NC2 NC3 GND SDA SCL VCLK VCC C619 0 01U R343 100 R346 510 R347 100K L173 R10 0603 L177 R60 0603 P107 PC AUDIO I P 5 4 3 2 1 D123 5 6V 1 2 C609 5P R329 100 C622 100P C626 100P C624 0 01U L229 SC2...

Page 85: ... YPBPR0L_IN 9 YPBPR0R_IN 9 AV0SY0L_IN 9 AV0SY0R_IN 9 GPIO7 3 GPIO9 3 12V 3 SG_12V SG_12V SG_12V SG_12V SG_12V SG_12V SG_12V SG_12V SG_12V R355 47K R362 47K R354 10K C633 0 1U C0603 C629 22U 50V R353 47K R351 47K R359 47K R350 47K E B C SOT 23 Q113 MMBT3904 1 3 2 R356 47K E B C SOT 23 Q112 MMBT3904 1 3 2 R365 33 C628 22U 50V R352 47K R363 47K R360 10K I134 HEF4052 12V SOP16 1 2 3 4 5 6 7 8 9 15 14 ...

Page 86: ...0V C643 0 1U C649 10U 50V R379 10K R383 100K I136 AD12250 TSSOP16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 M0 MCLK VL SDOUT GND VD SCLK LRCK RST AINL VQ AINR VA REF_GND FILT M1 C641 0 1U L181 R121 0603 C651 2200P R368 10K R385 10K C635 10U 50V R371 NC 10K C654 0 1U R367 10K R369 10K R492 0 C637 0 1U I135B NJM4558 OPA 5 6 7 8 4 C634 10U 50V C646 4 7U 50V C638 1U C648 470P R386 5 1K C636 100U 16V R376...

Page 87: ...1 0603 I139B NJM4558 OPA 5 6 7 8 4 R498 NC 220 R430 100 R429 100 I139A NJM4558 OPA 3 2 1 8 4 E B C SOT 23 Q125 NC 1 3 2 R497 NC 10K C692 1000P L188 R121 0603 R415 20K C685 150P C669 220U 16V C687 820P C688 22U 50V R525 NC R419 0 C748 NC 100U 16V C686 10U 50V R499 NC 1K R428 5 1K C691 22U 50V C678 150P R426 0 R496 NC 10K R424 20K C693 1000P D141 NC 5 6V 1 2 C665 10U 50V R420 10K L187 R121 0603 C679...

Page 88: ...0603 C675 0 1U C0603 L185 R121 0603 C659 1n C0603 L200 R121 0805 L209 R121 0603 R242 47 R241 47 C663 1n C0603 C744 1n C0603 C677 0 1U C0603 C680 0 1U C0603 R422 10 R506 1M C745 0 1U C0603 L186 R121 0603 R397 33 L184 R121 0603 I145 AD8256 36 35 34 33 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 HPL HPR AGND AVDD PWMSA DEF...

Page 89: ... 3 GPIO11 3 GPIO15 3 GPIO16 3 IRRCVR1 3 5VSB 5VSB SB33B Q121 MMBT3906 1 2 3 C734 0 1U R469 10K R468 10K R458 47 R467 10K C728 0 1U R466 10K R464 10K C732 0 1U R465 10K C730 0 1U C731 0 1U C733 0 1U R462 4 7K C729 0 1U R463 4 7K R459 330 Q120 MMBT3906 1 2 3 R460 330 R461 1K C726 0 1U P112 6P_2mm 1 2 3 4 5 6 P113 7P_2mm 1 2 3 4 5 6 7 C727 47U 16V R470 10K C309 470P ViewSonic Corporation Confidential...

Page 90: ...O2 3 CLK1 3 CLK1 3 AN 0 3 3 LVDS_GND 2 3 5 AP 0 3 3 GPIO2 3 PANELVCC PANELVCC 5VSB 12V R472 NC 0R 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 R480 47K C735 47U 16V I142 AP9435M 1 8 2 7 3 6 4 5 S D S D S D G D C740 0 1U E B C SOT 23 Q122 MMBT3904 1 3 2 R526 10K C737 220U 16V R479 NC 47K R471 NC 0R C739 0 1U L195 R121 0805 R481 47K R478 47K C787...

Page 91: ...11 DTVU0TX 11 SCL 7 10 SDA 7 10 SCL0 11 SDA0 11 SB33B SB33B SB33 5VSB SB33B C741 10U 50V R503 4 7K R513 0 R484 10K R489 47K C742 0 1U R487 10K D137 LL4148 E B C SOT 23 Q123 MMBT3904 1 3 2 R485 10K R490 47K R486 20K I144 EEPROM 24C16 SOP8 SMD 1 2 3 4 5 6 7 8 NC NC NC GND SDA SCL WP VCC R488 NC 10K P115 NC 6x1 W HOUSING 6P200VM 1 2 3 4 5 6 R482 NC R E B C SOT 23 Q124 MMBT3904 1 3 2 C791 0 1U R483 10...

Page 92: ...8 27 Power board ViewSonic Corporation Confidential Do Not Copy N2752w 1M 89 ...

Page 93: ...2 3 3 4 1 2 3 4 1 2 3 1 2 1 6 11 7 3 4 1 2 2 3 3 4 1 2 1 2 3 1 8 28 Power supply board ViewSonic Corporation Confidential Do Not Copy N2752w 1M 90 ...

Page 94: ...9 1 MAIN PCB TOP VIEW 9 PCB Layout Diagrams ViewSonic Corporation Confidential Do Not Copy N2752w 1M 91 ...

Page 95: ...9 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N2752w 1M 92 ...

Page 96: ...9 3 CON PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N2752w 1M 93 ...

Page 97: ...9 4 CON PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N2752w 1M 94 ...

Page 98: ...9 5 IR PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N2752w 1M 95 ...

Page 99: ...9 6 IR PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N2752w 1M 96 ...

Page 100: ...ViewSonic Corporation Confidential Do Not Copy N2752w 1M 97 10 Exploded View And Exploded Parts List ...

Page 101: ...ViewSonic Corporation Confidential Do Not Copy N2752w 1M 98 ...

Page 102: ...CSK SCREW CSK M4x8 11 23 N A 2071879400P BRACKET FIX JC278XXXXUA SECC T 1 6MM SUPPORT 1 24 N A 2082340082P SCREW CSK SCREW CSK M4x8 2 25 N A 2071879500P BRACKET FIX JC278XXXXUA SECC T 0 8MM SUPPORT SPK 1 26 M SCW 0824 0811 2080003700P SCREW SPE ISZZTER001A M3 6L MSWR17 FZMYI 2 27 M SCW 0824 0285 2084730082P SCREW BND T M3X8 BND T 6 28 N A 2080007100P SCREW SPE M3x6mm M I NI 9 35mm 4 29 C 00005505 ...

Page 103: ...E 00008083 2212008810P V901 19 Hardware Bracket JC278UB 2 0mm HW 00008021 2071878800P 5B05 20 Box 360X220X50mm Box B P 00004497 2011100017P 6P85 21 Foam Left P 00005510 2012177501P 6P20 22 Foam Right P 00005511 2012177601P 6P21 23 Foam Down P 00008114 2012180002P 6P22 24 Craft Box P 00008116 2011127038P 6P01 25 Polyethy Bag HDPE Bag P 00008117 2013054003P 6P60 26 Polyethy Bag HDPE Bag P 00008118 2...

Page 104: ...1 41 N A 2346710596P CAP CHIP 85 C CS 0603 Y5V 16V 1 0u Z T C282 1 42 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C283 1 43 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C304 1 44 N A 2341147196P CAP CHIP 125 C CS 0603 COG 50V 470p J T C309 1 45 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C313 1 46 N A 2346110396P CAP CHIP 125 C CS 0603 X7R 50V 0 01u K T C315 1 47...

Page 105: ... 2341150996P CAP CHIP 125 C CS 0603 COG 50V 5 0 p D T C613 1 128 N A 2346110396P CAP CHIP 125 C CS 0603 X7R 50V 0 01u K T C614 1 129 N A 2346110396P CAP CHIP 125 C CS 0603 X7R 50V 0 01u K T C615 1 130 N A 2341150996P CAP CHIP 125 C CS 0603 COG 50V 5 0 p D T C617 1 131 N A 2346110396P CAP CHIP 125 C CS 0603 X7R 50V 0 01u K T C619 1 132 N A 2341150996P CAP CHIP 125 C CS 0603 COG 50V 5 0 p D T C621 1...

Page 106: ...ZENER SMD BZV55 C5V6 5 SOD 80C PHILIPS D126 RA 1 218 E D 0403 2808 2364505616P DIODE ZENER SMD TZMC5V6 SOD 80 5 2 6 0V VISHAY D126 RB 1 219 E D 0403 1779 2364503996P DIODE ZENER SMD BZV55 C5V6 5 SOD 80C PHILIPS D127 RA 1 220 E D 0403 2808 2364505616P DIODE ZENER SMD TZMC5V6 SOD 80 5 2 6 0V VISHAY D127 RB 1 221 E D 0403 1779 2364503996P DIODE ZENER SMD BZV55 C5V6 5 SOD 80C PHILIPS D128 RA 1 222 E D...

Page 107: ...C LINEAR SMD AP1117E33LA SOT 223 AnaChip I148 RA 1 305 N A 2365808396P IC LINEAR SMD AIC1117 33PY SOT 223 AIC I148 RB 1 306 N A 2365809496P IC LINEAR SMD CM1117SCM 3 3V SOT223 CHAMPION I148 RC 1 307 N A 2365807196P IC LINEAR SMD AMC1117 3 3 SOT 223 ADD I148 RD 1 308 N A 2365425856P DIGITAL IC RT9173PS SOP 8 RICHTEK I149 1 309 N A 2365425766P DIGITAL IC REGULATOR CM3202 00DE DFN8 CMD I149 RA 1 310 ...

Page 108: ...MD PMBS3904 SOT 23 PHILIPS Q103 RA 1 397 E Q 0402 1608 2360300896P XISTOR NPN R SMD MMBT3904K SOT 23 FAIRCHILD Q103 RB 1 398 E Q 0402 1087 2360301896P XISTOR NPN R SMD MMBT3904LT1 SOT23 LRC Q103 RC 1 399 E Q 0402 1624 2360301696P XISTOR NPN R SMD PMBS3904 SOT 23 PHILIPS Q107 RA 1 400 E Q 0402 1608 2360300896P XISTOR NPN R SMD MMBT3904K SOT 23 FAIRCHILD Q107 RB 1 401 E Q 0402 1087 2360301896P XISTO...

Page 109: ... 0 8 RP56 1 483 N A 2259247008P RES CHIP NETWORKS 8P4R 1 16W 47 ohm J P 0 8 RP57 1 484 N A 2259275008P RES CHIP NETWORKS 8P4R 1 16W 75 ohm J P 0 8 RP58 1 485 N A 2259247008P RES CHIP NETWORKS 8P4R 1 16W 47 ohm J P 0 8 RP59 1 486 N A 2259275008P RES CHIP NETWORKS 8P4R 1 16W 75 ohm J P 0 8 RP60 1 487 N A 2259222008P RES CHIP NETWORKS 8P4R 1 16W 22 ohm J P 0 8 RP61 1 488 N A 2259275008P RES CHIP NETW...

Page 110: ...53200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R218 1 572 N A 2253222296P RES CHIP 1 10W RC 0603 1 10W 2 2Kohm J T R220 1 573 N A 2253222296P RES CHIP 1 10W RC 0603 1 10W 2 2Kohm J T R221 1 574 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R224 1 575 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R228 1 576 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 1...

Page 111: ...P 1 10W RC 0603 1 10W 47Kohm J T R352 1 661 E 00003527 2253247396P RES CHIP 1 10W RC 0603 1 10W 47Kohm J T R353 1 662 N A 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R354 1 663 E 00003527 2253247396P RES CHIP 1 10W RC 0603 1 10W 47Kohm J T R355 1 664 E 00003527 2253247396P RES CHIP 1 10W RC 0603 1 10W 47Kohm J T R356 1 665 E 00003527 2253247396P RES CHIP 1 10W RC 0603 1 10W 47Kohm J T R357...

Page 112: ...53247296P RES CHIP 1 10W RC 0603 1 10W 4 7Kohm J T R491 1 751 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm J T R492 1 752 N A 2253233096P RES CHIP 1 10W RC 0603 1 10W 33 ohm J T R493 1 753 N A 2253210096P RES CHIP 1 10W RC 0603 1 10W 10 ohm J T R494 1 754 N A 2253275096P RES CHIP 1 10W RC 0603 1 10W 75 ohm J T R500 1 755 E R 0405 6600 2253200096P RES CHIP 1 10W RC 0603 1 10W 0 ohm ...

Page 113: ... P 2 5 T C351 1 839 N A 2336610613P CAP MINI ELE 105 C EC 10u 50V 5 7 P 2 5 T C358 1 840 N A 2336310713P CAP MINI ELE 105 C EC 100u 16V 6 3 7 P 2 5 T C359 1 841 N A 2336310713P CAP MINI ELE 105 C EC 100u 16V 6 3 7 P 2 5 T C362 1 842 N A 2336310713P CAP MINI ELE 105 C EC 100u 16V 6 3 7 P 2 5 T C363 1 843 N A 2336610613P CAP MINI ELE 105 C EC 10u 50V 5 7 P 2 5 T C365 1 844 N A 2336610613P CAP MINI E...

Page 114: ...6110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C161 1 928 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C162 1 929 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C163 1 930 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C164 1 931 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C165 1 932 N A 2346133296P CAP CHIP 125 C CS 0603 X7R 50V 3300p K T C166 1 933 N A ...

Page 115: ...125 C CS 0603 X7R 50V 3300p K T C296 1 1018 N A 2346133296P CAP CHIP 125 C CS 0603 X7R 50V 3300p K T C297 1 1019 N A 2346133296P CAP CHIP 125 C CS 0603 X7R 50V 3300p K T C298 1 1020 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C301 1 1021 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C302 1 1022 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C303 1 1023 N A 2346110496...

Page 116: ...04 1 1106 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C505 1 1107 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C506 1 1108 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C507 1 1109 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C508 1 1110 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C509 1 1111 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1...

Page 117: ...C682 1 1197 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C683 1 1198 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C684 1 1199 N A 2346110496P CAP CHIP 125 C CS 0603 X7R 50V 0 1u K T C743 1 1200 N A 2341110296P CAP CHIP 125 C CS 0603 COG 50V 1000p J T C756 1 1201 N A 2341110296P CAP CHIP 125 C CS 0603 COG 50V 1000p J T C757 1 1202 N A 2341110296P CAP CHIP 125 C CS 0603 COG 50V...

Page 118: ...83 N A 2253282296P RES CHIP 1 10W RC 0603 1 10W 8 2Kohm J T R311 1 1284 N A 2253210496P RES CHIP 1 10W RC 0603 1 10W 100Kohm J T R341 1 1285 N A 2253210496P RES CHIP 1 10W RC 0603 1 10W 100Kohm J T R347 1 1286 N A 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R379 1 1287 N A 2253251296P RES CHIP 1 10W RC 0603 1 10W 5 1Kohm J T R380 1 1288 N A 2253210496P RES CHIP 1 10W RC 0603 1 10W 100Kohm ...

Page 119: ... C FUN KEY 1F23 1 1373 N A 2044266601P FUNCTION KEY JC278 ABS 94V0 AL PLATE FUNCTI 1F24 1 1374 M SCW 0824 0285 2084730082P SCREW BND T M3X8 BND T 1F26 2 1375 M SCW 0824 0811 2080003700P SCREW SPE ISZZTER001A M3 6L MSWR17 FZMYI 1F28 2 1376 N A 2080040062P SCREW SPE M4 8 PMS 3 W 1F29 1 1377 N A 2071675800P SHIELD PLATE JC278XXXXUA SECC T 0 8MM SHIELD COVER 1F30 1 1378 N A 2082340082P SCREW CSK SCREW...

Page 120: ...5mm 620mm 0 075mm 6P07 1 1423 N A 2055613379P LABEL VIEWSONIC CONTAINER LABEL 6P11 100 1424 P 00005510 2012177501P POLYFOAM NEW JC278AA EPE UP L 6P20 1 1425 P 00005511 2012177601P POLYFOAM NEW JC278AA EPE UP R 6P21 1 1426 P 00008114 2012180002P POLYFOAM JC278UB EC 65E EPE DOWN 6P22 1 1427 P 00008117 2013054003P POLYETHY BAG 800X800mm HDPE BAG 6P60 1 1428 P 00008118 2013054028P POLYETHY BAG 2400 13...

Page 121: ...low Chart 7 Block Diagrams 8 Schematic Diagrams 9 PCB Layout Diagrams 10 Exploded Diagram and Exploded Parts List 11 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 this service manual Reader s basic dada Name Title...

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