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ViewSonic N4285p-4M, Service Manual

Get the Service Manual for your ViewSonic N4285p-4M TV for free download from our website. This manual offers detailed instructions on troubleshooting, maintenance, and repair, ensuring you get the best performance from your TV. Simply visit manualshive.com to access the manual and keep your TV in optimal condition.

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8

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 SIS328_ANALOG POWER

120R,300mA

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AVDD3P3_AUDIOHS

AVDD3P3_LVDS

AVDD3P3_SIFAFE

AVDD1P2_USB

AVDD3P3_XTAL_AUX

AVDD3P3_HDMI

AVSS1P2_HDMIC

AVDD3P3_LVDS

AVDD3P3_AUDIOHS

AVDD3P3_ADC

AVDD3P3_AUDIOIP

AVDD3P3_HSADC

AVDD3P3_SIFADC

AVDD3P3_ADCAFE

AVSS1P2_HDMIC

AVDD3P3_HDMI

AVDD1P2_USBCLK

AVDD1P2_HDMIC

AVDD3P3_SIFAFE

AVDD1P2_LPLL

AVDD3P3_USB

AVDD3P3_XTAL_AUX

AVDD1P2_MPLL

AVDD3P3_SIFADC

AVSS3P3_ADC

AVDD1P2_LPLL

AVDD1P2_MPLL

AVDD1P2_HDMIC

AVSS3P3_SIFADC

AVDD1P2_HDMI

AVDD3P3_HSADC

AVSS1P2_LPLL

AVDD3P3_ADC

AVSS3P3_AUDIOHS

AVDD3P3_AUDIOIP

AVSS3P3_AUDIOIP

AVSS3P3_SIFAFE

AVSS3P3_AUDIOHS

AVSS1P2_LPLL

AVSS3P3_AUDIOIP

AVSS3P3_XTAL_AUX

AVSS3P3_SIFAFE

AVSS3P3_SIFADC

AVSS1P2_MPLL

AVSS1P2_USBCLK

AVDD1P2_HDMI

AVSS1P2_USBCLK

AVSS3P3_XTAL_AUX

AVSS1P2_MPLL

AVSS3P3_ADCAFE

AVDD1P2_USBCLK

AVDD1P2_USB

AVDD3P3_HSADC

AVDD3P3_USB

AVSS3P3_ADC

AVDD3P3_HDMI

AVDD1P2_HSADCPLL

AVSS3P3_ADCAFE

AVDD3P3_ADCAFE

AVDD1P2_HSADCPLL 5

V_3.3V

V_3.3V

V_3.3V

V_3.3V

V_3.3V

V_3.3V

V_1.2V_HSADC

V_1.2V

V_1.2V

V_3.3V

V_3.3V

V_1.2V

V_1.2V

V_3.3V

V_3.3V_AUX

V_3.3V

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

V_1.2V

GND

V_1.2V

GND

GND

C322
NC/1uF_16V

C299
100nF_16V

L169

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2

I121E
sis328_ATSC_V02

K12

B16

K13
K14

B14

B12

W24

T24

U24

V30

W2

8

W2

9

K20

C27

AC21

AB21

AC23

AC24

AB24

Y23

W23

Y24

AA24

M11

M10

H17

J18

H18

F1

8

V22

F27

AD12
AC12

F17
E17

B17
A17

AD21
AD22

K15

U22

T22

K21
K22

J20
J21
J22
J23

C24

D23

M23

L23

AB23

AA23

J17
K17

N11

N10

P10

V25
W25

V24

G27

A14
A16
B10

C11
C13
C15
C17
C9
D11
D13
D15
D17
D9
E10
E12
E14
E16
E8
F10
F12
F14
F16
F8
J12
J13
J14
J15
J16

A10

U31

U32

V23

W3

1

W3

2

Y30

AA28

AA29

AA31

AA32

AB30

AC31

AC32

T2

3

T3

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U23

U28

U29

E23

B25
B26
B28

K16

K18

K10
K11

L10
L11

J19

H20

H19

D20

C20

B21

B19

A21

A19

AJ29

AK30

E27

L19
L20
L21
L22

J9

D28

E24

K9

AG29
AG31

AH30

AF32

AF30

AA22
AB22

AC22

AE31

AH31

A26

C26

C29

AVDD3P3_LVDS

AVSS3P3_LVDS

AVDD3P3_LVDS
AVDD3P3_LVDS

AVSS3P3_LVDS

AVSS3P3_LVDS

AVDD3P3_HDMICOMP
AVDD3P3_HDMI
AVDD3P3_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVDD3P3_HSADC

AVSS3P3_HSADC

AVDD3P3_ADC
AVSS3P3_ADC

AVDD3P3_ADCAFE

AVDD3P3_ADCSLD
AVSS3P3_ADCSLD

AVDD3P3_SIFADC
AVSS3P3_SIFADC

AVDD3P3_SIFAFE
AVSS3P3_SIFAFE

AVDD3P3_AUDIOIP

AVSS3P3_AUDIOIP

AVDD3P3_USBIO

AVDD3P3_USBIO

AVDD3P3_USB

AVSS3P3_USB

AVDD1P2_HDMI

AVSS1P2_HSADCPLL

AVDD1P2_MPLL

AVSS1P2_MPLL

AVDD1P2_USBCLK

AVSS1P2_USBCLK

AVDD1P2_LPLL

AVSS1P2_LPLL

AVDD3P3_XTAL_AUX
AVSS3P3_XTAL_AUX

AVDD3P3_LVDS

AVDD1P2_HDMI

AVDD1P2_HDMI

AVDD3P3_HSADC
AVDD3P3_HSADC
AVDD3P3_HSADC1
AVDD3P3_HSADC1
AVDD3P3_HSADC1
AVDD3P3_HSADC1

AVSS3P3_HSADC

AVSS3P3_HSADC

AVDD3P3_HSADCSLD
AVSS3P3_HSADCSLD

AVDD3P3_ADCAFE

AVDD3P3_ADCAFE

AVDD1P2_USB

AVDD1P2_USBIO

AVDD3P3_AUDIOIP

AVSS3P3_AUDIOIP
AVSS3P3_AUDIOIP

AVDD1P2_HDMIC

AVSS1P2_HDMIC

AVDD3P3_HDMI

AVDD1P2_HSADCPLL

AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS

AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS
AVSS3P3_LVDS

AVSS3P3_LVDS

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS_HDMI

AVSS3P3_HSADC

AVSS3P3_HSADC
AVSS3P3_HSADC
AVSS3P3_HSADC

AVDD3P3_LVDS

AVDD1P2_USBIO

AVDD3P3_AUDIOHS
AVDD3P3_AUDIOHS

AVSS3P3_AUDIOHS
AVSS3P3_AUDIOHS

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_USBIO

AVSS3P3_ADCAFE
AVSS3P3_ADCAFE

AVSS3P3_HSADC
AVSS3P3_HSADC
AVSS3P3_HSADC
AVSS3P3_HSADC
AVSS3P3_HSADC

AVDD3P3_AUDIOHS

AVSS3P3_HSADC

AVSS3P3_HSADC

AVSS3P3_AUDIOHS

AVSS3P3_ADCAFE
AVSS3P3_ADCAFE
AVSS3P3_ADCAFE

AVSS3P3_ADCAFE

AVSS3P3_ADCAFE

AVSS3P3_ADCAFE
AVSS3P3_ADCAFE
AVSS3P3_ADCAFE

AVSS3P3_SIFAFE

AVSS3P3_ADCAFE

AVSS3P3_HSADC

AVSS3P3_HSADC

AVSS3P3_HSADC

C313
100nF_16V

C301
100nF_16V

L168

80Z_0603

1

2

L171

80Z_0603

1

2

C288
1uF_16V

C318
100nF_16V

C298
NC/1uF_16V

L167

80Z_0603

1

2

C290
100nF_16V

C312
NC/1uF_16V

L178

80Z_0603

1

2

C321
NC/1uF_16V

C310

10uF_10V

C314
NC/1uF_16V

C303
100nF_16V

C300
NC/1uF_16V

C287

10uF_10V

C320

10uF_10V

C315
100nF_16V

L184

80Z_0603

1

2

L175

80Z_0603

1

2

L179

80Z_0603

1

2

L172

80Z_0603

1

2

C294
100nF_16V

C289
100nF_16V

C305
100nF_16V

L164

80Z_0603

1

2

C306
NC/1uF_16V

C309
100nF_16V

L170

80Z_0603

1

2

C292
100nF_16V

C285

220pF

L165

80Z_0603

1

2

L166

80Z_0603

1

2

C297
100nF_16V

C316
100nF_16V

L173

80Z_0603

1

2

C295
1uF_16V

C317
100nF_16V

C296
NC/1uF_16V

L176

80Z_0603

1

2

C283

10uF_10V

C307
100nF_16V

L177

80Z_0603

1

2

L163

80Z_0603

1

2

C308
NC/1uF_16V

C302
NC/1uF_16V

C311
100nF_16V

C319

220pF

C304
NC/1uF_16V

C286
100nF_16V

C291
NC/1uF_16V

C284
100nF_16V

C293
100nF_16V

L174

80Z_0603

1

2

ViewSonic Corporation

                   

         

Confidential - Do Not Copy

       

N4285p-4M

65

Summary of Contents for N4285p-4M

Page 1: ...Service Manual ViewSonic N4285p 4M Model No VS11983 4M 42 LCD TV N4285p 4M_SM Rev 1a Oct 2009 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583...

Page 2: ...d 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...

Page 3: ...rcuit Description 26 5 Adjustment Procedure 30 6 Trouble Shooting Flow Chart 57 7 Block Diagram 60 8 Schematic Diagrams 61 9 PCB Layout Diagrams 79 10 Exploded View And Exploded Parts List 81 11 Recom...

Page 4: ...mmediately 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...

Page 5: ...izer 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 Place the monitor on...

Page 6: ...king 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 set...

Page 7: ...pendix 3 Audio Audio amp of this product shall be provided by YAMAHA with a Model Number of YDA148 SiS SiS328MX for N4285p 4M shall be used as sound processor In addition a pair of speakers shall be i...

Page 8: ...shall be defined in accordance with ISO 7779 DIN EN27779 1991 Power Switch noise shall be Excluded 12 Efficiency 80 full load nominal line 13 Leakage Current 0 5mA 240VAC 14 Power Saving DPMS 1 0 Wat...

Page 9: ...n IR remote control unit shall accompany this product along with battery In addition this remote control unit shall have an operational distance of 5 meters and an operational angle of 15 degrees for...

Page 10: ...nt 200mm x 400 mm VESA high hole n 4 pattren 6mm 1 0 pitch x 10 mm long screw mounting kit not included Sample Sample of textured color chips plastic material specification and Material Safety Data Sh...

Page 11: ...p in amber when the TV is in standby mode 4 ENTER Display Input source selection menu enter a menu or enable the function while in OSD menu 5 CH Up Channel up when source is TV or select a control whi...

Page 12: ...e RGB output of your computer and the other end to the RGB input on the rear of the LCD TV 7 YPbPr 2 signal input Connect this port to the YPbPr output of A V device 8 YPbPr 1 signal input Connect thi...

Page 13: ...Connect this port to your A V device with audio in RCA connectors or to audio amplifier 16 Headphone Jack Connect to your headphones By connecting the headphones you can listen to the sound from the T...

Page 14: ...Press this button to turn the power on from standby mode Press it again to return to the standby mode 2 MTS Press this button to choose the available sound output that is preset by TV broadcasting sta...

Page 15: ...TV source 7 ZOOM Press this button repeatedly to select the screen size You can select from Normal Zoom 1 or Zoom 2 8 0 9 number buttons Press 0 9 and to select a channel After you input the channel n...

Page 16: ...tween TV CATV or press to direct to TV source when in any other source 16 PICTURE Press this button to select between the picture modes of User Vivid Normal or Movie 17 WIDE Press this button to selec...

Page 17: ...RETURN see Figure 1 3 Select Clock Mode from Auto or Manual then press ENTER to continue see Figure 2 4 Select Time Zone of your location then press ENTER to continue see Figure 3 5 Select TV RF sour...

Page 18: ...ress 8 press 0 press press 3 Return to the previous channel press RETURN button Adjusting the Volume Press VOL to adjust volume To turn off the volume press MUTE To restore volume press MUTE again or...

Page 19: ...button on the remote control 2 Press or to select the required input source between TV AV S Video YPbPr 1 YPbPr 2 HDMI 1 HDMI 2 VGA or USB When in USB input source the system only supports JPEG image...

Page 20: ...the level 5 Press MENU to exit 2 1 Press the MENU button to display the OSD main menu 2 Press or to select your desired top Menu 3 Press ENTER or to enter the menu 4 Press or to select the control of...

Page 21: ...me Zone select the Time Zone of your area with or Channel Skip Setting You can use the Channel Skip function to set some channels to be skipped the skipped channels will not appear on the screen when...

Page 22: ...on then press ENTER or to enter Close Caption setting 3 Press or to select Analog CC or Digital CC and use or to select caption information To perform custom digital caption style settings select Digi...

Page 23: ...t Change PIN then press ENTER to enter Change PIN setting 2 Enter your new password in Enter New PIN 3 Enter the new password again in Confirm New PIN After you complete the last step the screen will...

Page 24: ...re defined as following E Exempt C children C8 children eight years and older G general programming suitable for all audiences PG parental guidance 14 viewers and older 18 adult programming 2 Press EN...

Page 25: ...menu 2 Press or to select the Video menu 3 Press ENTER or to enter Video menu 4 Press or to select your desired controls and press or to adjust 4 For advanced VGA functions select VGA only enabled in...

Page 26: ...only enabled in VGA source H Position To adjust the horizontal position of the picture V Position To adjust the vertical position of the picture Phase To adjust delay time of phase in order to reduce...

Page 27: ...time Timer To set power on time Time Zone To select the time zone appropriate to your location Daylight Saving To turn on off daylight saving Close Caption To set close caption options CC mode To sel...

Page 28: ...trol VOL VOL MENU MENU EXIT CH CH INPUT ENTER In USB mode the OSD function keys are as follows Thumbnail To display in thumbnail Slide Show Press this key to auto play the pictures Intervals can be ad...

Page 29: ...z ADC the 170MHz triple video ADC and the HDMI 1 3 receiver respectively to minimize the deployment of the external components The audio ADC thus supports 5 Stereo Line in inputs The analog 54 MHz ADC...

Page 30: ...it gain 7 bit offset adjustment Full Sync processing including SOG Automatic and programmable power saving modes 1 4 Dual Channel DVI HDCP HDMI Compliant Receiver Support up to 225MHz 1080P 60Hz with...

Page 31: ...h Compressed Audio MPEG AC 3 and AAC or Stereo PCM Outputs Support up to7 1 channel I2S outputs HDMI audio processing capability Automatic compensation of processing skew between Video and Audio path...

Page 32: ...t Dual UART 1 16 Process and Package Type 0 11um 3 3V 1 2V process 708 pin TEBGA package 4 2 GPIO Interface The GPIO signals in SiS 328 are all multi function pins The default function is designated i...

Page 33: ...des Pattern 1 4 1 EEPROM INIT A Press POWER CH and ENTER at the same time then go into the FACTORY MODE Fig 1 B Figure 1 Select EEPROM INITIAL and press ENTER The act of EEPROM INITIAL is completed wh...

Page 34: ...TEST A Input YPbPr S VIDEO AV signal and check B Under YPbPr MODE Make sure the 480i 480P 720P 1080i 1080p is right 1 4 9 AUDIO FUNCTION TEST A Audio input includes PC AUDIO IN S VIDEO AV AUDIO IN an...

Page 35: ...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...

Page 36: ...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...

Page 37: ...er 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 mos...

Page 38: ...0 080ms 0 106ms V Border 0 000ms 0 254ms 0 000ms 0 000ms H V Sync Interlace No No No No ITEM 5 6 7 8 TIMING 800 600 75HZ 1024 768 60HZ 1024 768 75HZ 1280 768 60HZ Pixel Rate 49 500MHZ 65 000MHZ 78 75...

Page 39: ...11 487us 13 863us H B Porch 2 994us 2 296us 1 915us 0 578us H Width 1 310us 1 037us 1 203us 0 231us H Border 0 000us 0 000us 0 000us 0 000us V TOTAL 16 662ms 16 661ms 16 679ms 16 686ms V DISPLAY 16 09...

Page 40: ...onform to the LCD TV you have to do the DDC key in 2 1 Equipment Needed N4285P4M LCD TV DDC Card PC RS 232 cable Barcode Reader VGA Cable N4285P4M LCD TV DDC Card PC RS 232 Cable VGA Cable Barcode Rea...

Page 41: ...able when key in DVI DDC information use VGA transform to DVI port 2 2 4 Connect Power Cord to N4285P4M LCD TV 2 2 5 Press MENU and ENTER at the same time then go into the BURN IN MODE 2 3 DDC Key In...

Page 42: ...2 3 3 Press ENTER key 2 3 4 Press F4 key and Input bar code ViewSonic Corporation Confidential Do Not Copy N4285p 4M 39...

Page 43: ...2 3 5 Press ENTER key then the successful picture is as follows DDC DOWNLOAD OK 2 3 6 Exit program ViewSonic Corporation Confidential Do Not Copy N4285p 4M 40...

Page 44: ...he different EDID into each HDMI connector 3 1 Equipment Needed N4285P4M LCD TV PC RS 232 cable Barcode Reader HDMI Cable N4285P4M LCD TV PC RS 232 Cable HDMI Cable Barcode Reader 3 2 Setup Procedure...

Page 45: ...keyboard port 3 2 3 Connect DDC Card and N4285P4M LCD TV with HDMI Cable 3 2 4 Connect Power Cord to N4285P4M LCD TV 3 3 DDC Key In Procedure 3 3 1 Run DDC exe 3 3 2 Choose model number then ViewSonic...

Page 46: ...3 3 3 Press ENTER key 3 3 4 Press F4 key ViewSonic Corporation Confidential Do Not Copy N4285p 4M 43...

Page 47: ...3 3 5 Input bar code 3 3 6 Press ENTER key then the successful picture is as follows DDC DOWNLOAD OK 3 3 7 Exit program ViewSonic Corporation Confidential Do Not Copy N4285p 4M 44...

Page 48: ...es of codeFlash code custom save and dataFlash data into the folder of N4285p 4M 4 2 3 Insert the USB sticker into the TV 4 2 4 Select the TV source 4 2 5 Enter Factory Mode Method 1 Press the MENU ke...

Page 49: ...d seal the bag Figure 2 1 3 Put the cushions on the LCD TV and put all the accessories into the carton Figure 3 1 4 Place the LCD TV into the carton At last close the carton and seal it with tape Figu...

Page 50: ...2013222536P POLYETHY BAG 1 7 NA 2438501329P CD OWNER GUIDE 1 8 NA 2002310761P GUARANT CARD 1 9 A 00005362 2427130046P AC POWER CORD 1 10 NA 2011100017P CARTON BOX 1 11 P 00009779 2011142139P CARTON BO...

Page 51: ...om LCD TV 1 1 Unscrew 4 screws that secure Stand Unit and detach Dust Cover from the LCD TV 2 Disassembly of Rear Cover 2 1 Pull the Holder from the LCD TV 2 2 Unscrew 23 screws in the Rear Cover Stan...

Page 52: ...2 3 Prize the rectangle hole on Rear Cover Fig 1 with a screwdriver Fig 2 to make the Rear Cover detach from the LCD TV Fig 1 Fig 2 ViewSonic Corporation Confidential Do Not Copy N4285p 4M 49...

Page 53: ...3 Disassembly of Main Board Power Board IR Board Front Cover and Panel Unit 3 1 Unscrew 24 screws to remove Shield Plate Rear Cover ViewSonic Corporation Confidential Do Not Copy N4285p 4M 50...

Page 54: ...3 2 Remove the function key ass y 3 3 Unscrew 18 screws to remove Front Cover and Bracket Fix ViewSonic Corporation Confidential Do Not Copy N4285p 4M 51...

Page 55: ...3 4 Unscrew 17 screws to remove metal fiting vesa support Bracket Fix ViewSonic Corporation Confidential Do Not Copy N4285p 4M 52...

Page 56: ...4 Unscrew 17 screws and to remove Shield plate 3 5 Unscrew 6 screws and disconnect the wires to remove Power Board Power Board Shield plate ViewSonic Corporation Confidential Do Not Copy N4285p 4M 53...

Page 57: ...3 6 Unscrew 5 screws and disconnect the wires to remove Main Board 3 7 Unscrew 5 screws to remove METAL FITTG I O Main Board METAL FITTG I O ViewSonic Corporation Confidential Do Not Copy N4285p 4M 54...

Page 58: ...3 8 Lay Panel Unit facedown and unscrew 18 screws on its right left up and down sides to remove Panel Unit and Panel Bracket ViewSonic Corporation Confidential Do Not Copy N4285p 4M 55...

Page 59: ...Panel Unit ViewSonic Corporation Confidential Do Not Copy N4285p 4M 56...

Page 60: ...is on C183 Check IR Board Check X101 is OK Check Wire Connection on power module is OK Replace I121 Replace I113 Replace IR board Replace X101 Connect the wire Replace Power module NO NO NO NO NO YES...

Page 61: ...CE TV Check I103 Pin14 has output signal Check I121 signal output to I601 Check Speaker Wire Replace I103 Replace I121 AV S VIDEO YPbPr YES YES NO NO ViewSonic Corporation Confidential Do Not Copy N42...

Page 62: ...I105 DTV Check I102 has output signal at RP01 RP02 Check clock output YES NO Replace I102 NO Replace X101 NO YES Check P117 P118 I600 is defective Replace P117 P118 HDMI Check I121 has output signal a...

Page 63: ...AUDIO INPUT HDMI1 YPP2 YPP1 USBA BUS VGA CONN VIDEO INPUT YPP1 PORT1 YPP2 PORT2 RCA2 2 CONN SIS328 DIF AV1 SV CONN VIDEO INPUT AV1 SV ATSC TUNER DTVS205EH201A DRAM AUDIO INPUT AV1 SV1 AUDIO OUTPUT LVD...

Page 64: ...GND GND GND R357 33R C444 10uF_10V TP101 R375 0R CLOCK MISC IR SPI RS232 I2C USB LVDS CVBS OUTPUT I121A sis328_ATSC_V02 AL24 AK24 AK25 AJ22 AM24 AM25 AL29 AK29 AM28 AH26 AM15 AL15 AK15 AH15 AJ15 AM16...

Page 65: ...C420 100nF_16V C421 47nF_16V C391 220nF_16V C0603 R336 37 4_1 C411 47nF_16V R335 37 4_1 R337 37 4_1 C395 47nF_16V C389 47nF_16V C412 220nF_16V C0603 R408 33R C432 100nF_16V C429 NC 22pF C430 100nF_16...

Page 66: ...R314 NC 47K R412 100K R302 NC 47K C379 1uF_16V C355 10uF_10V C383 NC 1nF R310 0R 1K C380 NC 1nF R321 NC 47K C365 100nF_16V C376 1uF_16V R413 100K R311 47K C387 NC 330pF R320 0R 1K R289 47K C374 NC 1n...

Page 67: ...1 L2 K1 J1 J2 K3 AE5 AK3 AL4 AH5 AM5 AG6 AL5 AH6 AK6 AL6 AL7 AJ7 AM7 AK8 AM8 AL8 R2 R1 AJ4 AH4 T1 T2 U4 T3 U5 V5 AB3 W4 AB1 AA2 AA1 W5 Y3 Y1 W3 V4 W2 W1 V2 V1 U3 AJ2 AG3 AC4 AJ3 AD4 AB5 AC1 AA3 AC2 AC...

Page 68: ..._MPLL AVSS1P2_MPLL AVDD1P2_USBCLK AVSS1P2_USBCLK AVDD1P2_LPLL AVSS1P2_LPLL AVDD3P3_XTAL_AUX AVSS3P3_XTAL_AUX AVDD3P3_LVDS AVDD1P2_HDMI AVDD1P2_HDMI AVDD3P3_HSADC AVDD3P3_HSADC AVDD3P3_HSADC1 AVDD3P3_H...

Page 69: ...13 W14 W15 W16 W18 W19 W20 W21 Y12 Y13 Y14 Y15 Y16 Y17 V11 W11 Y11 Y22 V9 W9 Y2 Y4 Y9 W17 AG5 AJ17 AK4 B8 Y18 Y19 Y20 Y21 W22 J3 AG26 AH20 L12 L13 D29 D30 OVDD1P8_DDR PVDD3P3_DDR OVDD3P3 IVDD1P2_AUX V...

Page 70: ...uF_63V DIP C623 220nF_50V 0805 R624 100R C622 100nF_50V 0603 R621 1K L606 15UH CHOKE 5mm C626 220nF_50V 0805 R626 NC 10K C614 NC 1nF C645 1uF_16V L608 15UH CHOKE 5mm R625 100R R696 1 5K R630 NC 0R C61...

Page 71: ...CL 4 HDMIA_RX_CLK_DP 5 HDMIA_RX_CLK_DN 5 GND GND GND GND GND GND GND GND GND GND GND GND GND GND D153 4 7P R261 100R D151 4 7P D149 4 7P D158 4 7P D156 4 7P R260 NC 1K R195 100R R257 33R HDMI 19 P117...

Page 72: ...pF R252 75R_1 R262 2K C415 390pF R457 75R_1 C392 390pF L144 80Z 1 2 D174 4 7P L150 80Z 1 2 R250 75R_1 C237 NC 33pF C409 22pF R248 75R_1 C242 NC 33pF L143 80Z 1 2 R401 100R C416 390pF R334 75R_1 D167 4...

Page 73: ...GND V_3 3V GND GND GND GND GND GND GND GND GND GND GND GND GND GND L123 600Z 1 2 C225 1uF_16V L129 600Z 1 2 L138 600Z 1 2 D121 4 7P D118 4 7P D109 NC 4 7P C230 NC 1nF D110 4 7P R241 47K L122 600Z 1 2...

Page 74: ...V_5V_AUX GND V_3 3V_AUX V_3 3V_SPI GND V_3 3V_SPI GND GND GND V_3 3V_SPI V_3 3V_SPI GND V_3 3V_AUX GND V_3 3V_AUX GND GND V_3 3V_AUX GND V_3 3V_AUX GND GND GND R473 4 7K R199 1 5K P109 B9B PH 1 2 3 4...

Page 75: ...GNDPADL39X118 R184 NC 0R M1 HOLE GND GND32PDX 2 3 4 5 9 8 7 6 1 2 3 4 5 9 8 7 6 1 R191 0R L114 120Z0805_6 0A 1 2 R194 0R M7 HOLE GND GND32PDX 2 3 4 5 9 8 7 6 1 2 3 4 5 9 8 7 6 1 R178 NC 10K R181 47K R...

Page 76: ...C0805 R162 330K B E C Q102 NC MMBT3904 C175 100nF_16V R165 0R 1K_1 I112 TPS54331 1 2 3 4 5 6 7 8 BOOT VIN EN SS VSNS COMP GND PH R425 2 2K C182 100nF_16V R422 NC C184 220uF_16V_LESR C181 220uF_16V_LE...

Page 77: ...0nF_16V 1 2 R153 11K5_1 L110 120Z0805_3A 1 2 C160 100nF_16V C166 100uF_16V_LESR R453 NC 33K R455 NC 56K C457 NC 100nF_16V C169 100nF_50V 0603 R452 NC 2 21K_1 L451 NC 10uH YC124RT L107 120Z0805_3A 1 2...

Page 78: ...6V_LESR I103 DTVS205EH201A 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 19 20 21 22 15 16 23 GND GND RF_AGC_TP NC VT 30V IF IF IF_AGC TUNER_IF_TP SCL SDA GND BP 5V NC AFT SIF GND GND GND GND CVBS GND GND C1...

Page 79: ...06 1K C608 10uF_10V C610 10uF_10V R601 33R C604 4 7nF R602 33R R605 1K C602 100nF_16V R622 NC R612 5 6K R603 33R C605 4 7nF TP601 R613 5 6K R604 33R L601 80Z_0603 1 2 R615 10K R616 0R I602 PCM1754DBQR...

Page 80: ...P F Center Frequecy 38Khz KEY1_ENTER KEY2_UP KEY5_DEC KEY0_MENU KEY3_DOWN KEY4_INC IR_IN 5VD LED_R LED_G PWRON GND K GND IR GND K GND IR GND IR GND IR S703 S701 D711 P712 JST 2 P 2 0 180 1 2 S704 P701...

Page 81: ...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...

Page 82: ...9 PCB Layout Diagrams 9 1 MAIN PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 79...

Page 83: ...9 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 80...

Page 84: ...9 3 CON PCB TOP VIEW 9 4 CON PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 81...

Page 85: ...9 5 IR PCB TOP VIEW 9 6 IR PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 82...

Page 86: ...9 7 SWITCH PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 83...

Page 87: ...9 8 SWITCH PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 84...

Page 88: ...9 9 RS232 PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 85...

Page 89: ...9 10 RS232 PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 86...

Page 90: ...10 Exploded View And Exploded Parts List ViewSonic Corporation Confidential Do Not Copy N4285p 4M 87...

Page 91: ...ViewSonic Corporation Confidential Do Not Copy N4285p 4M 88...

Page 92: ...C429FE ABS94HB BLACK STANDARD 1 28 NA 2044266601P FUNCTION KEY JC278 ABS 94V0 AL PLATE FUNCTI 1 29 NA 2084730062P SCREW BND T M3X6 BND T 2 30 NA 2080003700P SCREW SPE ISZZTER001A M3 6L MSWR17 FZMYI 6...

Page 93: ...8 2427411001P P711 20 Documentation Quick Start Guide CD Rom Label User s Guide CD ROM N4285P 4M WIZARD VS11983 4M CMO DC 00009842 2604208587 26042 21 Electronic Components CRT EEPROM Fly Back Transfo...

Page 94: ...T TDK 1 49 NA 2345710496P 03 CAP CHIP CS 0402 Y5V 16V 0 1u Z T WALSIN 1 50 NA 2345710496P 01 CAP CHIP CS 0402 Y5V 16V 0 1u Z T DARFON 1 51 NA 2345710496P 02 CAP CHIP CS 0402 Y5V 16V 0 1u Z T TDK 1 52...

Page 95: ...5V 10V 10u Z T WALSIN 1 144 NA 2345710496P 01 CAP CHIP CS 0402 Y5V 16V 0 1u Z T DARFON 1 145 NA 2345710496P 02 CAP CHIP CS 0402 Y5V 16V 0 1u Z T TDK 1 146 NA 2345710496P 03 CAP CHIP CS 0402 Y5V 16V 0...

Page 96: ...A 2340133096P CAP CHIP CS 0402 NPO 50V 33p J T 1 244 NA 2345710496P 01 CAP CHIP CS 0402 Y5V 16V 0 1u Z T DARFON 1 245 NA 2345710496P 02 CAP CHIP CS 0402 Y5V 16V 0 1u Z T TDK 1 246 NA 2345710496P 03 CA...

Page 97: ...CAP CHIP CS 0402 X7R 16V 0 047u K T 1 343 NA 2345347396P CAP CHIP CS 0402 X7R 16V 0 047u K T 1 344 NA 2345347396P CAP CHIP CS 0402 X7R 16V 0 047u K T 1 345 NA 2345710496P 01 CAP CHIP CS 0402 Y5V 16V 0...

Page 98: ...7R 16V 1 0u K T WALSIN 1 440 NA 2340122196P CAP CHIP CS 0402 NPO 50V 220p J T 1 441 NA 2347122496P 01 CAP CHIP CS 0805 X7R 50V 0 22u K T DARFON 1 442 NA 2347122496P 02 CAP CHIP CS 0805 X7R 50V 0 22u K...

Page 99: ...0P M 1 539 NA 2436247996P VARISTOR ESD V PORT 0603 4 7P M 1 540 NA 2436250996P VARISTOR ESD V PORT 0603 5 0P M 1 541 NA 2436247996P VARISTOR ESD V PORT 0603 4 7P M 1 542 NA 2436250996P VARISTOR ESD V...

Page 100: ...360106T BEAD HI IMPEDANCE Z 600 ohm 200MHZ 0603 200mA 1 641 NA 2379360106T BEAD HI IMPEDANCE Z 600 ohm 200MHZ 0603 200mA 1 642 NA 2379360106T BEAD HI IMPEDANCE Z 600 ohm 200MHZ 0603 200mA 1 643 NA 237...

Page 101: ...T 1 738 NA 2251166506P RES CHIP 1 16W RC 0402 1 16W 665 ohm F T 1 739 NA 2251166506P RES CHIP 1 16W RC 0402 1 16W 665 ohm F T 1 740 NA 2251180606P RES CHIP 1 16W RC 0402 1 16W 806 ohm F T 1 741 NA 22...

Page 102: ...F T 1 837 NA 2253110296P RES CHIP 1 16W RC 0402 1 16W 1K ohm J T 1 838 NA 2253110296P RES CHIP 1 16W RC 0402 1 16W 1K ohm J T 1 839 NA 2253122296P RES CHIP 1 16W RC 0402 1 16W 2 2Kohm J T 1 840 NA 225...

Page 103: ...B FR4 4 320 170mm V1 00 09 11 2009 1 939 NA 2072263001P HEAT SINK AL 23 5 23 5 8T 3M 467MP 200MP 1 940 NA 27201C11300 V TYPE MAIN N4285P 4M 1 941 NA 2336010543P HI LIFE LOW ESR E CAP 3000hr EC 1u 50V...

Page 104: ...WALSIN 1 1035 NA 2345710496P 01 CAP CHIP CS 0402 Y5V 16V 0 1u Z T DARFON 1 1036 NA 2345710496P 02 CAP CHIP CS 0402 Y5V 16V 0 1u Z T TDK 1 1037 NA 2345710496P 03 CAP CHIP CS 0402 Y5V 16V 0 1u Z T WALSI...

Page 105: ...1u Z T TDK 1 1134 NA 2345710496P 03 CAP CHIP CS 0402 Y5V 16V 0 1u Z T WALSIN 1 1135 NA 2345710496P 01 CAP CHIP CS 0402 Y5V 16V 0 1u Z T DARFON 1 1136 NA 2345710496P 02 CAP CHIP CS 0402 Y5V 16V 0 1u Z...

Page 106: ...0402 1 16W 0 ohm J T 1 1232 NA 2253100096P RES CHIP 1 16W RC 0402 1 16W 0 ohm J T 1 1233 NA 2253100096P RES CHIP 1 16W RC 0402 1 16W 0 ohm J T 1 1234 NA 2253100096P RES CHIP 1 16W RC 0402 1 16W 0 ohm...

Page 107: ...SMD PMBS3904 SOT 23 PHILIPS 1 1333 NA 2253210596P RES CHIP 1 10W RC 0603 1 10W 1 0Mohm J T 1 1334 NA 2253247296P RES CHIP 1 10W RC 0603 1 10W 4 7Kohm J T 1 1335 NA 2253210396P RES CHIP 1 10W RC 0603 1...

Page 108: ...AE 65UA RSS232 ABS94HB BLACK 1 1427 NA 2074163400P HOLDER JC429FE CABLE CLIP P P BLACK 1 1428 NA 2055636114P LABEL N4285P 4M VS11983 4M SMALL LABEL 1 1429 NA 2055617101P LABEL 10 20 HI POT TESTED OK 1...

Page 109: ...escription 5 Adjusting Procedure 6 Trouble Shooting Flow Chart 7 Block Diagram 8 Schematic Diagrams 9 PCB Layout Diagrams 10 Exploded View And Exploded Parts List 11 Recommended Spare Parts List B Are...

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