ViewSonic VX2835wm-1 User Manual Download

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ViewSonic VX2835wm-1

Model No. VS11531

28” wide Color TFT LCD

Display

(VX2835wm-1_SM Rev. 1

Jun.

2007)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Service Manual

Summary of Contents for VX2835wm-1

Page 1: ...ViewSonic VX2835wm 1 Model No VS11531 28 wide Color TFT LCD Display VX2835wm 1_SM Rev 1b Jun 2007 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual ...

Page 2: ...bility 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 tradem...

Page 3: ... Notices 1 2 Specification 5 3 Front Panel Function Control Description 35 4 Circuit Description 40 5 Adjusting Procedure 41 6 Trouble Shooting Flow Chart 62 7 Block Diagrams 68 8 Schematic Diagrams 69 9 PCB Layout Diagrams 81 10 Exploded Diagram And Spare Parts List 90 11 Recommended Spare Parts List 92 ...

Page 4: ...ile servicing this LCD display Because of the high voltage used in the inverter circuit the voltage is exposed in such areas as the associated transformer circuits 4 Power Supply Requirements The external AC power operating range shall be from 90 to 264Vac 5 LCD Module Handling Precautions 5 1 Handling Precautions 1 Since front polarizer is easily damaged pay attention not to scratch it 2 Be sure ...

Page 5: ...ed to the TFT Module from outside Otherwise the TFT Module may be damaged 12 Cold cathode fluorescent lamp in LCD contains a small amount of mercury Please follow local ordinances or regulations for disposal 13 Small amount of materials having no flammability grade is used in the LCD module The LCD module should be supplied by power complied with requirements of Limited Power Source or be applied ...

Page 6: ...ou remove anything from the carton box check all the accessory listed in the packing list Remember the position of the left and right poly foams to avoid any problem when packing them 2 When removing the LCD monitor make sure that you are holding from the back side of the LCD monitor and not the front side of the LCD monitor ...

Page 7: ...and remove the plastic bag 4 When placing the LCD screen on the table you need to make sure there are no object underneath to avoid any damage on the LCD screen It is not advisable to wear any jewelry like rings bracelet or watch to avoid any scratch on the LCD screen or casing when doing the service ...

Page 8: ...ity Sync Compatibility Sync on Green Yes No Guarantee image Quality PC Yes Power Mac Yes Compatibility TV Box Yes Power Voltage AC 100 240V 50 60Hz Yes On Mode Max for Energy star 64 5W Power Consumption Off Mode Max 1 W Audio 3W THD 10 Max Yes Tilt 20 5 Yes Swivel No Pivot No Ergonomics Height Adjust No OSD Control 1 2 Yes Temperature 32 104 0 40 Operating Condition Humidity 10 90 Temperature 4 1...

Page 9: ...r Standard 175nits 130 W max 500nits Power Cable Refer to Appendix G Analog Cable 1 8 m color black with PC 2001 and Hot Plug Detect DDC YES HDMI to DVI D converter cablex1 8m YES ViewSonic CD Wizard ViewSonic Quick Start Guide Arabic English Finnish Spanish German Italian Japanese Swedish Polish Korean Portuguese Russian French Simplified Chinese Traditional Chinese Czech Hungarian Greek Dutch Tu...

Page 10: ...ain Relief D Sub 12Kg 5min HDMI to DVI 3Kg 5min Composite AV 3Kg 5min Video Cable Connector DB 15 Pin out Compliant DDC CI Video Signals 1 Video RGB Analog Separate Composite and Sync on Green image quality no guarantee 2 TMDS Digital Need RCA to SCART for european market Video Impedance 75 Ohms Analog 100 Ohms Digital Maximum PC Video Signal 950 mV with no damage to monitor Maximum Mac Video Sign...

Page 11: ...r video source PC No over scan 4 3 POWER SUPPLY Internal Power Supply Part Number 71 Y2831200G001 Input Voltage Range AC90 264 Worldwide Input Frequency Range 47 to 64 Hertz Short Circuit Protection Output can be shorted without damage Over Current Protection 3 3 4 5A typ at 5 VDC Protect when short circuit Leakage Current 3 5mA Max at 264VAC 50Hz Efficiency 80 typical at 115VAC Full Load Fuse Int...

Page 12: ...nts of machines acoustics Power Switch noise shall not be considered US Type Power Cable Color Black Separate 3 prong NEMA 5 15P type plug Length 1 8m Connects to display European Type Power Cable Color Black Schuko CEE7 7 type plug Length 1 8m Connects to display CCC Type Power Cable Color Black Separate 3 prong type plug Length 1 8m Connects to display PSE Type Power Cable Color Black Separate 2...

Page 13: ...640x350 640x400 720x400 promary 640x400 2 640 x 350 85 Hz 38 KHz X X X For Composite and SOG the image vertical size image will be not full screen Still at the center And the OSD will be 640x350 640x400 720x400 promary 640x400 3 640 x 400 60 Hz 32 KHz X X X For SOG sync switch 640x400 60Hz and 640x480 60Hz by 1 2 short cut key primary 640x480 60Hz 4 640 x 400 70 Hz 32 KHz X X X For Composite and S...

Page 14: ...14 720 x 400 85 Hz 38 KHz X X X For Composite and SOG the image vertical size image will be not full screen Still at the center And the OSD will be 640x350 640x400 720x400 promary 640x400 15 720 x 480 60 Hz 32 KHz X X X For Analog sync the information OSD shows 640x480 16 800 x 600 60 Hz 38 KHz X X X 17 800 x 600 70 Hz 43 KHz X X X 18 800 x 600 72 Hz 48 KHz X X X 19 800 x 600 75 Hz 47 KHz X X X 20...

Page 15: ... X 37 1280 x 768 85 Hz 69 KHz X X X 38 1280 x 960 50 Hz 49 KHz X X X 39 1280 x 960 60 Hz 60 KHz X X X 40 1280 x 960 75 Hz 75 KHz X X X 41 1280 x 960 85 Hz 86 KHz X X X 42 1280 x 1024 50 Hz 53 KHz X X X 43 1280 x 1024 60 Hz 64 KHz X X X 44 1280 x 1024 70 Hz 75 KHz X X X 45 1280 x 1024 75 Hz 80 KHz X X X 46 1280 x 1024 85 Hz 91 KHz X X X 47 1360 x 768 60 Hz 48 KHz X X X 48 1400 x 1050 50 Hz 54 KHz X...

Page 16: ...t cut key primary 1400x1050 60Hz 59 1680 x 1050 60 Hz 65 KHz X X X X For Separated and Composite sync Switch 1400x1050 60Hz and 1680x1050 60Hz by 1 2 short cut key primary 1400x1050 60Hz 60 1920 x 1200 60 Hz 74 KHz X X X Reduce Blanking 61 480p 50 Hz X X X X X Unable Test 62 480p 60 Hz X X X X X 63 480i 50 Hz X X X Unable Test 64 480i 60 Hz X X X 65 576i 50 Hz X X X X X 66 576i 60 Hz X X X X X Una...

Page 17: ... Reaction Time OSD must fully appear within 0 5s after pressing Button 1 Short Cuts Function from the button s 1 Main Menu 2 Input toggle D sub HDMI YPbPr S Video CVBS To immediately audio menu Contrast Brightness page Recall both of audio to default under Audio page 1 2 Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode 1 Keep pressing 3 sec White Balance Not shown on user s guide...

Page 18: ... 1 2 3 4 Size 1 2 Source1 2 PBP Source1 2 Setup Menu Language English French German Italian Spanish Finnish Russian Japanese Simplified Chinese Traditional Chinese Resolution Notice OSD Position OSD Timeout OSD Background Sleep 30 45 60 120 off Memory Recall 1 These functions are not available in Digital Mode 2 These functions are not available under SRGB Mode Opticolor On and Opticolor Skin Tone ...

Page 19: ...If the user presses the power button while it is locked a message will appear on the screen for 3 seconds showing Power Button Locked It also means that with the power button locked the LCD would automatically turn back On when power is restored after a power failure If the power button is not in the locked mode then power should return to it s previous state when power is restored after a power f...

Page 20: ...save the settings to buffer for further use 2 It should be reset by Memory Recall function Should not reset by power off power unplug and others OSD Auto Save The OSD shall save new settings when it is turned off by the user or when it times out There shall not be a separate save Input Priority This function is defined the auto detect priority when the display has several inputs Please refer to th...

Page 21: ...ection 3 5 mm stereo jacks HDMI RCA 1 with YPbPr RCA 2 with CVBS S Video Vibration There should be no audible vibration resonance at volume 100 any Freq Screen image There should be no affect on the screen image stability under any conditions Connector PC99 requirement Audio in Lime Green pantone 577C Cable type length 3 5mm stereo cable 1 8m length Audio DPMS Speakers stay off when the rest of th...

Page 22: ...ripe Pixel Pitch 0 309 H x 0 309 H mm Glass Treatment Anti Glare Hard coating 3H of Backlights 14 CCFL w Inverter direct type Backlight Life 50000Hours Min at 6mA Luminance 5 point Condition CT User Color Contrast Max Brightness Max 500 cd m2 Typ after 30 minute warm up 400 cd m2 Min after 30 minute warm up Brightness Uniformity 75 Entire Area min Contrast Ratio 800 1 typ 600 1 min Color Depth 16 ...

Page 23: ...9F 24 10 51 57 BF EF 80 D1 00 40 B3 00 A9 40 95 00 90 40 81 80 50 81 40 71 4F 28 3C 80 A0 70 B0 60 23 40 30 20 36 00 51 73 21 00 70 00 1A 00 00 00 FF 00 51 46 47 80 30 37 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4C 1E 52 11 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 32 38 33 35 77 120 6D 0A 20 20 20 20 00 5F ______________________________________________________________________ 08 09...

Page 24: ... 67Hz Apple Mac II 640 X 480 72Hz VESA 640 X 480 75Hz VESA 800 X 600 56Hz VESA 800 X 600 60Hz VESA 36 ESTABLISHED TIMING II 800 X 600 72Hz VESA 800 X 600 75Hz VESA 832 X 624 75Hz Apple Mac II 1024 X 768 60Hz VESA 1024 X 768 70Hz VESA 1024 X 768 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 1152 X 870 75Hz Apple Mac II 38 53 Standard Timing Identification 1920 X 1200 60Hz 1680 X...

Page 25: ...larity Vertical Polarity ______________________________________________________________________ 72 89 Detailed Timing Descriptor Block 2 Monitor Serial Number QFG070100001 ______________________________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 76 Hz Min Horiz Freq 30 KHz Max Horiz Freq 82 KHz Pi...

Page 26: ...40 95 00 90 40 81 80 50 81 40 71 4F 28 3C 80 A0 70 B0 60 23 40 30 20 36 00 51 73 21 00 70 00 1A 00 00 00 FF 00 51 46 47 80 30 37 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4C 1E 52 11 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 32 38 33 35 77 120 6D 0A 20 20 20 20 01 4C ______________________________________________________________________ 08 09 ID Manufacturer Name ________________ VSC...

Page 27: ...0Hz VESA 36 ESTABLISHED TIMING II 800 X 600 72Hz VESA 800 X 600 75Hz VESA 832 X 624 75Hz Apple Mac II 1024 X 768 60Hz VESA 1024 X 768 70Hz VESA 1024 X 768 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 1152 X 870 75Hz Apple Mac II 38 53 Standard Timing Identification 1920 X 1200 60Hz 1680 X 1050 60Hz 1600 X 1200 60Hz 1440 X 900 60Hz 1400 X 1050 60Hz 1280 X 1024 60Hz 1280 X 960 6...

Page 28: ...______________________________________________________________ 72 89 Detailed Timing Descriptor Block 2 Monitor Serial Number QFG070100001 ______________________________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 76 Hz Min Horiz Freq 30 KHz Max Horiz Freq 82 KHz Pixel Clock 170 MHz Secondary GTF N...

Page 29: ...60 9E 8C 0A D0 8A 20 E0 2D 10 10 70 3E 96 00 51 73 21 00 00 18 01 80 1D 00 72 51 D0 1E 20 6E 28 55 90 00 51 73 21 00 00 1E 00 00 00 100 00 00 00 00 00 00 00 00 00 00 110 00 00 00 00 00 00 00 00 00 00 120 00 00 00 00 00 00 00 33 ______________________________________________________________________ 2 Detailed Timing Start at 25 3 DTV Supports Underscan DTV Supports Basic Audio DTV Supports YCbCr 4 ...

Page 30: ...ital Separate Horizontal Polarity Vertical Polarity ______________________________________________________________________ 43 60 Detailed Timing Descriptor Block 2 1920x1080i Pixel Clock 74 25 MHz ______________________________________________________________________ Horizontal Image Size 593 mm Vertical Image Size 371 mm Refreshed Mode Interlaced Normal Display No Stereo Horizontal Active Time 19...

Page 31: ...80x720p Pixel Clock 74 25 MHz ______________________________________________________________________ Horizontal Image Size 593 mm Vertical Image Size 371 mm Refreshed Mode Non Interlaced Normal Display No Stereo Horizontal Active Time 1280 pixels Blanking Time 370 pixels Sync Offset 110 pixels Sync Pulse Width 40 pixels Border 0 pixels Frequency 45 00 KHz Vertical Active Time 720 lines Blanking Ti...

Page 32: ... 80 30 37 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4C 1E 52 11 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 58 32 38 33 35 77 120 6D 0A 20 20 20 20 01 4C ______________________________________________________________________ 08 09 ID Manufacturer Name ________________ VSC 11 10 Product ID Code _____________________ 0F1F 12 15 Last 5 Digits of Serial Number ______ Not Used 16 Week of Manuf...

Page 33: ...II 1024 X 768 60Hz VESA 1024 X 768 70Hz VESA 1024 X 768 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 1152 X 870 75Hz Apple Mac II 38 53 Standard Timing Identification 1920 X 1200 60Hz 1680 X 1050 60Hz 1600 X 1200 60Hz 1440 X 900 60Hz 1400 X 1050 60Hz 1280 X 1024 60Hz 1280 X 960 60Hz 1152 X 864 75Hz ______________________________________________________________________ 54 71 De...

Page 34: ..._____________ 72 89 Detailed Timing Descriptor Block 2 Monitor Serial Number QFG070100001 ______________________________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 76 Hz Min Horiz Freq 30 KHz Max Horiz Freq 82 KHz Pixel Clock 170 MHz Secondary GTF Not Supported ____________________________________...

Page 35: ... 2C 25 80 51 73 21 00 60 00 9E 01 1D 00 BC 52 D0 1E 20 70 B8 28 55 40 51 73 21 00 00 1E 80 8C 0A D0 90 20 40 31 20 0C 40 90 55 00 51 73 21 00 00 18 00 00 100 00 00 00 00 00 00 00 00 00 00 110 00 00 00 00 00 00 00 00 00 00 120 00 00 00 00 00 00 00 25 ______________________________________________________________________ 2 Detailed Timing Start at 26 3 DTV Supports Underscan DTV Supports Basic Audio...

Page 36: ...ines Frequency 50 00 Hz Digital Separate Horizontal Polarity Vertical Polarity ______________________________________________________________________ 44 61 Detailed Timing Descriptor Block 2 1920x1080i Pixel Clock 74 25 MHz ______________________________________________________________________ Horizontal Image Size 593 mm Vertical Image Size 371 mm Refreshed Mode Interlaced Normal Display No Stere...

Page 37: ...720x576p Pixel Clock 27 00 MHz ______________________________________________________________________ Horizontal Image Size 593 mm Vertical Image Size 371 mm Refreshed Mode Non Interlaced Normal Display No Stereo Horizontal Active Time 720 pixels Blanking Time 144 pixels Sync Offset 12 pixels Sync Pulse Width 64 pixels Border 0 pixels Frequency 31 25 KHz Vertical Active Time 576 lines Blanking Tim...

Page 38: ... through the OSD timeout setting in the setup menu Main Menu Auto Image Adjust Automatically adjust sizes and centers the screen image REMARK There may need manual adjustment of phase for optimized performance for various VGA tolerance Contrast Brightness To adjust the Contrast and Brightness of the LCD monitor Input Select toggles between inputs if you have more than one computer connected to the...

Page 39: ...peaker Color Adjust Provides several selection on color adjustment including preset color temperatures and a User Color mode which allows independent adjustment of red R green G and blue B The factory setting for this product is 6500K Information displays the timing mode video signal input coming from the graphics card in the computer the LCD model number the serial number and the ViewSonic websit...

Page 40: ...een OptiColor Mode provides an optimum display environment depending on the contents displayed It contains 7 user selectable presets These 7 presets are easily accessible from the short cut keys OptiColor Skin Tone includes 3 presets Natural Red Tone Yellow Tone which user can select according to user s preference PIP Auto detection when the display has several inputs I When the display power on t...

Page 41: ...ct Input No Yes Input Yes No Display End NO SIGNAL Over 5 Power No Yes Go to next input The sequence as Input Priority setting Update the Last Active Input Display End Input signal No Yes NO SIGNAL Over 5 sec Power saving No Yes The Input Signal No Yes Setup Menu Language Select allows the user to choose the language used in the menus and control screens ...

Page 42: ...n allows the user to move the OSD menus and control screen OSD Timeout To set the displaying time of OSD menu in the screen Memory Recall Restore default settings of Clock H V Position Phase Contrast Brightness Color temperature OSD position OSD timeout and Sharpness Volume ...

Page 43: ...es nominal line voltage for one cycle with no damage Power Supply Missing Cycle Immunity Shall be able to function properly without reset or visible screen artifacts when cycle of AC power is randomly missing at nominal input Power Supply Acoustics The power supply shall not produce audible noise that would be detectable by the user Audible shall define to be in compliance with ISO 7779 DIN EN2777...

Page 44: ... 43 27kHz V 85Hz 800 600 H 53 7kHz V 85Hz 1024 768 H 68 67kHz V 85Hz 1280 1024 H 79 97kHz V 75Hz 5 2 Test Display Modes Pattern 5 2 1 Compatible Modes Analog 1 640 x 350 70Hz 31 5kHz 2 640 x 480 60Hz 31 5kHz 3 640 x 480 67Hz 35 0kHz 4 640 x 480 75Hz 37 5kHz 5 640 x 480 72Hz 37 9kHz 6 640 x 480 85Hz 43 27kHz 7 720 x 400 70Hz 31 5kHz 8 800 x 600 56Hz 35 1kHz 9 800 x 600 60Hz 37 9kHz 10 800 x 600 75H...

Page 45: ... adjustable to be within the screen frame Figure 3 4 RGB Color Performance RGB Color Intensities Contrast of each R G B color should be normal Figure 4 5 6 5 Screen Uniformity Flicker Full White Should be compliant with the spec Figure 7 6 Dead Pixel Line White Screen Dark Screen The numbers of dead pixels should be compliant with the spec Figure 7 8 7 White Balance White Black Pattern The screen ...

Page 46: ...43 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 G Color Pattern Figure5 B Color Pattern Figure 6 Full White Patter Figure 7 Dark Screen Pattern Figure 8 Black White Pattern Figure 9 ...

Page 47: ...rogram 5 3 5 Fine Tune and Sharpness Test Signal 1280 1024 60Hz Test Pattern Line Moire Pattern Check and see if the image has noise and focus performs well Eliminate visual line bar If not readjust by the following steps a Select and enter Fine Tune function on Manual Image Adjust to adjust the image to eliminate visual wavy noise b Then select and enter Sharpness function to adjust the clarity a...

Page 48: ...mpliant with the spec 5 3 11 Mura Test Pattern White RGB Black Grey Test Tool 8 ND Filter Check if the Mura can pass 8 ND Filter 5 3 12 Audio Test Signal Voice signal optional depend on model Test Pattern liberty Make sure there is audio output Make sure that audio function volume 80 is working without noise and resonance Make sure that the sound of right and left speakers are in balance 5 3 13 Ch...

Page 49: ... to erase all saved changes again and restore the factory defaults You should do All Mode Reset again 5 3 15 Power Off Monitor Turn off the monitor by pressing Power button 5 4Firmware Upgrade Procedure 5 4 1 Equipment needed Use 15 pin D Sub and USB cable ISP tool ISP connection 5 4 2 Hardware setup connection ...

Page 50: ... 2 Press Power button and wait for the blue screen to display 4 1 3 Press 1 immediately and the firmware version screen will display on the screen 5 4 4 Procedure to update firmware version Setup procedure to update Bin and Hex Firmware 1 Make sure the USB cable and 15 pin Sub cable are properly connected to the PC computer and LCD monitor Execute the software program 2 Click Yes to continue ...

Page 51: ...olor means connected 4 1 Mstar Chip set Select 5151A series 2 Debug Interace Select COMPORT 3 COM Port you need to check the assigned COM Port under Control Panel Æ Device Manager Æ Com Port 4 Com Port Protocol select TV Start to do firmware BIN update 5 On the top menu click VIEW Æ Direct SPIU Flash Management 6 Click Load ...

Page 52: ... ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 7 Locate and load the bios file 8 Set the Program Delay to 3 9 Click RUN 10 Exit after seeing OK Disconnect all cables and turn off all AC power ...

Page 53: ...pdate you need to follow set up procedure 1 to 4 before proceeding to this step 1 Click ISP on the top menu select configuration Æ ISP SettingÆ File Path of external ISP tool 2 Locate the file for 8051ISP writer 3 Select the correct chip W79E632 and select the hex file 4 Select HEX format ...

Page 54: ...ion Confidential Do Not Copy VX2835wm 1 5 Select the second HEX file 6 Select HEX format 7 Check the com port setting Control PanelÆSystemÆDevice ManagerÆCOMP PORT Click Connect Next Chip Click Program All 8 Program OK Done ...

Page 55: ...rocedure Note 1 Every time after replacing the main board you have to do the DDC key in 2 If you find the DDC does not conform to the monitor you have to do the DDC key in Equipment Needed VX2835 LCD Monitor DDC Card PC RS232 cable HDMI Cable DDC Card D8330 RS 232 Cable VGA Cable ...

Page 56: ...Do Not Copy VX2835wm 1 Step 1 Select VX2835 on Working Model column to show EDID data on left Step 2 Modify the column of Week of Manufacture and Year of Manufacture and ID serial Number then press 2B button for changing serial number data ...

Page 57: ...able surface with cover with foam to protect the LCD panel from scratch Make sure also that there is no object underneath the LCD monitor before putting the LCD down 2 Follow step 1 press both sides of the hinge cover then proceed to step 2 pull out the left cover to remove 3 Follow step 1 press both sides of the hinge cover then proceed to step 2 pull out the right cover to remove ...

Page 58: ... ARM hinge 5 Gently remove the base stand assembly to separate from the LCD monitor 6 Unfasten seven 7 pcs screws on the back cover of the LCD monitor 7 To remove the back cover start from the lower left corner Use a plastic tool flat and insert on the opening on the lower left corner Follow the number STEP 1 ...

Page 59: ...opy VX2835wm 1 8 Unfasten six 6 screws on the hinge bracket 9 You can now remove the left speaker Disconnect the speaker cable from the connector 10 You can now remove the right speaker Disconnect the speaker cable from the connector STEP 2 STEP 3 ...

Page 60: ...l Do Not Copy VX2835wm 1 11 Remove the black insulation tape along the left right and upper sides of the LCD panel 12 Disconnect the keyboard cable 13 Unfasten four 4 screws on the key board 14 Unfasten seven 7 pcs screws on the shielding ...

Page 61: ...Gently lift up the shielding half way and disconnect the cable underneath To disconnect the cable hold and press the end cable and gently pullout from the connector to disconnect 16 Unfasten two 2 screws on the upper and bottom sides of the LCD module 17 Release all the snap locks along the four sides of the LCD screen ...

Page 62: ... 1 18 When removing the LCD module you need to pull out both side at the same time to avoid any obstruction 19 Separate the front bezel of the LCD monitor 20 Unfasten all screws under the shielding 21 Unfasten all screws on the MB and Power Board and grounding ...

Page 63: ...on Confidential Do Not Copy VX2835wm 1 22 You may now separate MB and Power Board 23 The disassembly procedure is done NOTE There might be some additional aluminum foils for EMI solution that are not shown in this procedure ...

Page 64: ... 1 8M GLET 1 4 N A 33 Y2830501G010 Cable SIGNAL CVBS R L 1800mm GLET 1 5 N A 33 00000004G000 PWR CORD EUR 250V 10A 1800MM 3C BLK 1 6 CB 00008001 33 00090501G000 CABLE SIGNAL D 15P 15P M 1800MM 1 7 P 00008486 61 03000017G000 PE Bag 800 1000mm 0 05t 1 8 P 00008485 61 01000065G000 VX2835 END CAP L bottom EPS 1 9 P 00008484 61 01000064G000 VX2835 END CAP R bottom EPS 1 10 P 00008483 61 01000059G000 VX...

Page 65: ... Corporation Confidential Do Not Copy VX2835wm 1 6 Troubleshooting Flow Chart NO POWER NO POWER 1 Re connect AC power 2 Re connect Power cable Replace Power Board IS THERE A POWER IS THERE A POWER END YES YES NO NO ...

Page 66: ...opy VX2835wm 1 NO DISPLAY NO DISPLAY 1 Press power button 2 check sub cable if connected properly 3 Check all cables inside the monitor Replace MB Board IS THERE A DISPALY IS THERE A DISPLAY END YES YES NO NO Replace Panel IS THERE A DISPLAY NO YES ...

Page 67: ...l Do Not Copy VX2835wm 1 DISPLAY HAVE VERTICAL LINES Dispaly have vertical line 1 Check if sub cable is OK and connected properly 3 Check all cables inside the monitor Replace PANEL IS THE DISPALY GOOD IS THERE A DISPLAY END YES NO NO YES ...

Page 68: ...Y BACKLIGHT IS OFF Display Backlight is OFF 1 Check inverter cable if connected properly 2 Check for any damage on inverter cable Replace Power Inverter board Is display backlight ON Is display backlight ON END YES YES NO NO Replace Panel Is display backlight ON NO YES ...

Page 69: ...ntial Do Not Copy VX2835wm 1 DISPLAY HAVE BLOCK BAR Dispaly have block bar 1 Check if sub cable is OK and connected properly 3 Check all cables inside the monitor Replace PANEL IS THE DISPALY GOOD IS THE DISPALY GOOD END YES NO NO YES ...

Page 70: ...nfidential Do Not Copy VX2835wm 1 NO AUDIO NO Audio 1 Check if audio cable is connected properly 2 Check OSD and check if MUTE IS set to OFF or ON Replace Power Inverter Board IS THE AUDIO GOOD IS THE AUDIO GOOD END YES NO NO YES ...

Page 71: ...2 AV2 Video Decoder TVP5160 Audio S W W79E633A40 MCU Audio AMP Speaker PT2134A FLASH PM25LV010 HDCP KEY 24C08 24C32 DDCD DDCA POWER 12V 5V 3V3 EEPROM PC LINE IN S CVBS AV1 Input Digital RGB YPbPr Scaler IC MST6251DA 10bit 4 2 2 TDA7297D DAC PCM1754 R G B RGB I2C YPbPr 656 Format S CVBS R L PC R L I2C MTS_O R L Audio Output R L HDMI R L S CVBS ...

Page 72: ... DVI_B DVI_B DVI_G DVI_G DVI_R DVI_R DVI_CK DVI_CK FSADDR 0 11 FSWE FSCAS FSRAS FSCKE FSBKSEL0 FSBKSEL1 FSCLK FSCLK 5151A_RST AUMCK AUSD AUSCK AUWS IR_SW LCD_PWR 5V BLUE ORANGE AUMUTE Video Decoder Video Decoder AV2_SY AV2_SC AV2_CVBS D 0 7 D_CLK 5V 3V3 GNDD SDA_3V3 SCL_3V3 RESET P_A3 3V CARD_SC CARD_SY DDR DDR FSDQS0 FSDATAU 0 31 FSDQS1 FSDQS3 FSDQM0 FSDQS2 FSDQM1 GNDD 2V5_STBY FSADDR 0 11 FSWE F...

Page 73: ...K NC R24 0 R21 0 R23 0 C17 0 1uF NC R25 0 R14 10K R17 10K C21 10pF NC C22 10pF NC C20 10pF NC C13 1uF C12 10uF 16V NC C3 0 1uF R339 10K C1 10uF Q2 MMBT3904L C B E R2 47k R5 47k R231 10K R12 10K NC R6 1k C6 0 22uF C5 0 22uF C15 10uF 16V R324 0 R325 0 R323 0 CN1 Headphone_OUT 4 3 2 1 5 R326 0 R20 0 C19 330pF C11 100uF 25V ECD_D6 3_2 5 1 2 U1 TDA7297D 7 2 1 6 3 4 8 5 11 10 9 12 14 15 16 13 17 18 19 2...

Page 74: ... 4 5 6 7 8 9 10 11 12 13 14 15 16 BCK DATA LRCK DGND NC VCC VOUT L VOUT R AGND VCOM ZEROR ZEROA ZEROL NA MD MC ML SCK R271 NC R233 1 2K R237 1 2K C322 100uF 25V ECD_D6 3_2 5 U34 MM1117STA 2 3 1 4 VOUT1 VIN ADJ VOUT2 C289 0 1uF C291 0 1uF C339 0 1uF C340 10uF R240 5 6K C297 22uF C296 0 1uF C295 0 1uF C294 2 7nF C293 2 7nF C337 0 1uF C338 10uF C35 10uF R44 0 R43 0 R45 0 C286 2 2uF C288 2 2uF R48 0 R...

Page 75: ...GNDD GNDD 2V5_STBY GNDD GNDD GNDD GNDD GNDD GNDD 2V5_STBY 2V5_STBY R66 33 C72 0 1uF R69 33 R68 33 R61 150_1 R62 33 R67 33 R328 33 R71 1K RP2 33 1 8 2 3 4 5 6 7 C57 0 1uF RP8 33 1 8 2 3 4 5 6 7 RP7 33 1 8 2 3 4 5 6 7 RP6 33 1 8 2 3 4 5 6 7 RP5 33 1 8 2 3 4 5 6 7 RP4 33 1 8 2 3 4 5 6 7 R65 33 R327 33 C56 0 1uF C54 0 1uF C55 0 1uF C53 0 1uF L41 600Z 100MHz L0805 R70 1K RP3 33 1 8 2 3 4 5 6 7 U9 EM6A9...

Page 76: ...5 6V R74 33 D8 MLL5232B 5 6V C80 0 1uF 16V R83 100 NC R85 100 NC D6 MLL5232B 5 6V R81 75 R84 2 4K R73 33 R79 75 R82 100R J1 DSUB 15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 R88 4 7K R94 100R R87 4 7K R76 75 R78 75 D3 V100K_V05 1 2 D5 MLL5232B 5 6V R336 0 D2 V100K_V05 1 2 D4 V100K_V05 1 2 C79 47nF R77 75 R72 33 B7 220z 100M NC U36E 74LVC14 NC 11 10 14 7 C335 10uF NC U36B 74LVC14 NC 3 4 14 7 U36A 74LVC14...

Page 77: ...9 30 31 32 33 34 35 36 37 38 5V_SUPPLY LV_SUPPLY GND TMDS_D2 TMDS_GND TMDS_D2 TMDS_D1 TMDS_GND TMDS_D1 TMDS_D0 TMDS_GND TMDS_D0 TMDS_CK TMDS_GND TMDS_CK CE_REMOTE_IN DDC_DAT_IN DDC_CLK_IN HOTPLUG_DET_IN HOTPLUG_DET_OUT DDC_DAT_OUT DDC_CLK_OUT CE_REMOTE_OUT TMDS_CK TMDS_GND TMDS_CK TMDS_D0 TMDS_GND TMDS_D0 TMDS_D1 TMDS_GND TMDS_D1 TMDS_D2 TMDS_GND TMDS_D2 GND ESD_BYP NC R110 0 R115 10R D10 BAT54C J...

Page 78: ...7 1nF R124 33 R123 470 R126 75 C90 47nF CON4 CON7 1 2 3 4 5 6 7 U27 FSA2267 1 2 3 4 5 6 7 8 9 10 1A0 1A1 2B0 2B1 GND BOUT SWB SWA AOUT VCC C264 1uF NC C263 1uF NC C266 1uF NC C265 1uF NC L8 80z 100MHz R128 33pF R131 33pF C95 75 R132 75 R129 75 R127 33 C91 47nF R130 33 C94 47nF L4 0 L5 0 C93 47nF o o o o Pr Pb Y R L R L AV Y C CN2 RJ 1182Q 16 12 13 15 9 6 3 8 5 2 7 1 4 10 11 14 C92 75 C96 47nF C97 ...

Page 79: ...8 2 3 4 5 6 7 R290 0 C328 0 1uF R137 8 2K C330 0 1uF C324 0 1uF R348 0 NC R318 0 R319 0 R284 0 C309 0 1uF R262 33 C325 0 1uF C329 0 1uF CON1 HEADER4X1 Pitch 2 54mm Debug port 1 2 3 4 C109 22pF R288 0 R289 0 C327 0 1uF U29 PM25LV010 1 2 3 4 5 6 7 8 CE SDO WP VSS SDI SCK HOLD VDD R136 10K R286 0 R287 0 R152 10K C110 22pF C107 10uF C326 0 1uF R285 0 R154 0 R253 33 C108 0 1uF U14 NC7SZ08M5X 1 2 3 4 5 ...

Page 80: ...C_LCD 3V3 GNDD GNDD GNDD GNDD GNDD GNDD 5V 5V GNDD 5V R343 0 NC C341 0 1uF NC U42 FSA4157 NC 1 2 3 4 5 6 B1 GND B0 A VCC S R342 1K NC R341 47K NC Q19 MMBT3904L NC C B E R176 NC R175 NC R173 NC CN3 MS240430 31 32 1 2 3 4 6 8 10 12 14 16 18 20 22 24 26 28 30 7 9 11 13 15 17 19 21 23 25 27 29 5 GND GND R174 NC R344 0 RXO0 11 RXO1 11 RXO2 11 RXOC 11 RXO3 11 RXE0 11 RXE1 11 RXE2 11 RXEC 11 RXE3 11 RXO0...

Page 81: ...134 NC R180 10K JP3 COND_H_2 5_11 1 2 3 4 5 6 7 8 9 10 11 R186 0 L16 CHOKE R349 0 NC L14 CHOKE C127 0 1uF L15 CHOKE C269 0 1uF Q11 2N7002 G D S R282 0 C124 470uF 16V C125 0 1uF L13 CHOKE Q16 2N7002 G D S R280 20K Q15 AOS3401 G D S R281 68K Q10 AOS3401 G D S R181 6 8K R178 10K 1 2 J4 1 2 3 1 2 3 C270 0 1uF NC C271 0 1uF NC C272 0 1uF NC U16 AIC1084 ADJ 3 1 2 VIN GND VOUT0 R179 165R 1 2 C126 470uF 1...

Page 82: ...LVBCKP LVB3M LVB3P VDDC GND VI_DATA 11 VI_DATA 10 VI_DATA 9 VI_DATA 8 REFM REFP RMID VSYNC0 HSYNC1 DDCD_CK DDCD_DA REXT DVI_CK DVI_CK DVI_B DVI_B RIN1M RIN1 GIN1M GIN1 SOGIN1 BIN1M BIN1 VSYNC1 GND DVI_R DVI_G DVI_G DVI_R HSYNC0 RIN0 RIN0M SOGIN0 GIN0 GIN0M BIN0 BIN0M VI_DATA 12 VI_DATA 13 VI_DATA 14 VI_DATA 15 GND AVDD_APLL GPIO 5 VHS VI_DATA 0 VI_DATA 1 AVDD_DVI AVDD_ADC VDDC AVDD_ADC VDDC VDDM A...

Page 83: ...46 10uF 16V X2 14 318MHz RP11 33Ω 1 2 3 4 8 7 6 5 RP18 22Ω 1 2 3 4 8 7 6 5 RP13 22Ω 1 2 3 4 8 7 6 5 RP16 22Ω 1 2 3 4 8 7 6 5 C223 0 1uF R268 75 C314 220pF C313 5 6pF C243 0 1uF C239 0 1uF TVP5160PNP 128P TQFP U24 TVP5160PNP 1 2 3 4 5 6 7 98 97 96 95 94 91 90 89 88 87 121 122 65 123 37 38 35 36 59 30 31 32 70 73 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 25 28 27 29 66 39 40 41 42 43 44 45...

Page 84: ...81 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 9 PCB Layout Diagrams ...

Page 85: ...81 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 86: ...83 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 87: ...84 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 88: ...85 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 89: ...86 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 90: ...87 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 91: ...88 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 92: ...89 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 ...

Page 93: ...90 ViewSonic Corporation Confidential Do Not Copy VX2835wm 1 10 Exploded Diagram and Exploded Parts List ...

Page 94: ...N A 41 07010027G000 VX2835 HINGE SECC AL 1 13 C 00008465 40 02010042G000 VX2835 BACK COVER ABS HB BLACK 1 14 N A 43 01041203 010 SCREW M4 12 W 6 8 T 2 5MM PAN BK TAP 7 15 N A 43 01043001G040 SCREW M4 30 PAN PT ZN 8 16 N A 43 04040804G000 SCREW M4 8 FLAT BZ ME 6 17 N A 43 04040804G010 SCREW M4 8 FLAT BZ TAP 8 18 PL 00008001 42 02110002G000 HU171 Rubber Foot Black 6 19 N A 41 04010030G000 VX2835 shi...

Page 95: ...ser s Guide Quick Start Guide CD Rom USA DC 00008431 72 28350100G310 22 Label mylar 394 617 0 1mm DC 00008432 42 01120015G000 23 LCD Panel HSD280MUW1 A E 00008481 280MUW1 A00 24 Speaker 3 0W 8 Right E 00008482 30 20033000G000 25 Speaker 3 0W 8 Left E 00008483 30 20033001G000 26 Arm Front ABS HB pan 877c M 00008124 40 05010032G000 27 Bird Logo M 00008125 42 04170012G000 28 Viewsonic logo M 00008126...

Page 96: ... N A 33 Y2830201G701 WIRE HRN 2P 2P Speaker L 370MM 大朋 1 32 N A 33 Y2830501G010 Cable SIGNAL CVBS R L 1800mm GLET 1 33 N A 33 Y2830601G200 Cable HDMI To DVI 1 8M GLET 1 34 N A 34 01230020G000 Gasket W10 L10 H18 1 35 N A 34 04170003G000 V261 Conductive Al Foil L50 W42 1 36 N A 34 04170009G000 Al foil W L H 30 50 0 1mm 2 37 N A 34 04170025G000 AL FOIL W50 L150 t0 1mm 1 38 N A 34 04170026G000 AL foil...

Page 97: ... 03000018G000 VX2835 PE bag 1170mm 1095mm 0 08t 1 84 N A 62 02000044G000 VSC vista insert flyer Art paper 1 85 N A 62 03000018G000 ViewSonic Warranty China 1 86 N A 62 05000075G010 VX2835wm ID Label Taiwan 1 87 N A 62 06000003G000 BARCODE LABEL 76 2 76 2MM 1 88 N A 62 06000004G000 BARCODE LABEL 50 25MM 1 89 N A 62 06000005G000 BARCODE LABEL 25 12MM 1 90 N A 62 06000006G000 Barcode label 35 4mm 1 9...

Page 98: ...ircuit Description 5 Adjustment Procedure 6 Troubleshooting Flow 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...

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