ViewSonic VP720-1 User Manual Download

Page: 1 / 92

(VP720-1_VP720b-1_SM Rev. 1a Jan.2006)

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

ViewSonic VP720-1

Model No. VS10927

17” Color TFT LCD Display

Service Manual

VP720b-1

Summary of Contents for VP720-1

Page 1: ... VP720 1_VP720b 1_SM Rev 1a Jan 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 ViewSonic VP720 1 Model No VS10927 17 Color TFT LCD Display Service Manual VP720b 1 ...

Page 2: ...her expressed or implied with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes Trademarks Optiquest is aregistered ...

Page 3: ...ty Notices 1 2 Specification 4 3 Front Panel Function Control Description 9 4 Circuit Description 16 5 Adjustment Procedure 21 6 Troubleshooting Flow Chart 43 7 Block Diagram 47 8 Recommended Spare Parts List 71 9 Exploded Diagram and Exploded Parts List 75 10 Schematic Diagrams 76 11 PCB Layout Diagrams 84 ...

Page 4: ...sure to turn off power supply when inserting or disconnecting 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 ca...

Page 5: ...Handling and Placing Methods 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 ...

Page 6: ...oft foam pad Placing the monitor on foreign objects That could scratch the surface of the panel or cause Mura The panel is placed facedown on the lap That may cause Mura ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 3 ...

Page 7: ...Speaker specification Line input connection 3 5 mm stereo jack Line input signal 1 0 Vrms Line input impedance 22 kOhm Maximum power output Electric 1 W 15 distortion Signal to Noise Ratio 40 dB Frequency response 100 Hz 20 Khz Distortion 5 THD 1kHz Vibration There should be no audible vibration with volume at 100 and treble bass at default Screen image There should be no affect on the screen imag...

Page 8: ... warm up 250 cd m2 Min after 30 minute warm up Brightness Uniformity 75 Min Contrast Ratio 500 1 Typ 450 1 Min Color Depth 16 2 million colors 6 2 bit panel Horizontal Viewing Angle 140 degrees Typ 120 degrees Min CR 10 170 degrees Typ 150 degrees Min CR 5 Vertical Viewing Angle 130 degrees Typ 110 degrees Min CR 10 170 degrees Typ 150 degrees Min CR 5 Response Time 10 90 Ta 25 C On Off Typical 8 ...

Page 9: ...0 Hz 31 5 KHz Toggle 640x480 60Hz and 720x480 60Hz by 1 2 primary 640x480 60Hz 6 640 x 480 67 Hz 35 KHz For MAC 7 640 x 480 72 Hz 37 9 KHz 8 640 x 480 75 Hz 37 5 KHz 9 640 x 480 85 Hz 43 3 KHz 10 720 x 400 70 Hz 31 5 KHz Toggle 640x400 70Hz and 720x400 70Hz by 1 2 primary 720x400 70Hz 11 720 x 480 60 Hz 31 5 KHz 480p Toggle 640x480 60Hz and 720x480 60Hz by 1 2 primary 640x480 60Hz 12 720 x 576 50 ...

Page 10: ...Hz For Composite and SOG signal toggle 1024x768 60Hz and 1280x768 60Hz by 1 2 primary 1024x768 60Hz 30 1280 x 768 75 Hz 60 3 KHz For Composite and SOG signal toggle 1024x768 75Hz and 1280x768 75Hz by 1 2 primary 1024x768 75Hz 31 1280 x 768 85 Hz 68 6 KHz For Composite and SOG signal toggle 1024x768 85Hz and 1280x768 85Hz by 1 2 primary 1024x768 85Hz 32 1280 x 960 50 Hz 49 4 KHz 33 1280 x 960 60 Hz...

Page 11: ...kaging Spec The Top Level Assembly shall meet the ViewSonic Corporation Packaging Spec VSCPACSPEC003 ViewSonic Pallet Spec Refer to ViewSonic Pallet Load Specification REV 1 I Ink The ink shall not rub off after a suitable drying time Multiple Trips The carton shall withstand 10 trips by any combination of air rail land or sea transportation One Unit Packing Standard Shipping Carton Type One piece...

Page 12: ...lays the control screen for the highlighted control Also toggles between two controls on some screens Also a shortcut to toggle analog and digital connection Power light Green ON Orange Power Saving Standby Power On Off Displays the Main Menu or exits the control screen and saves adjustments 3 Front Panel Function Control Description ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 ...

Page 13: ...the setting press the upSor downTbuttons 5 To save the adjustments and exit the menu press button 1 twice The following tips may help you optimize your display Adjust the computer s graphics card so that it outputs a 1280 x 1024 60Hz video signal to the LCD display Look for instructions on changing the refresh rate in the graphics card s user guide If necessary make small adjustments using H POSIT...

Page 14: ...n to its pre set value Contrast adjusts the difference between the image background black level and the foreground white level Brightness adjusts background black level of the screen image Input Select allows the user to toggle between an analog and a digital signal Audio Adjust increases the volume decreases the volume and mutes the audio Color Adjust provides several color adjustment modes inclu...

Page 15: ... green to the screen image for a darker color 5000K Adds blue and green to the screen image for a darker color User Color Individual adjustments for red R green G and blue B 1 To select color R G or B press button 2 2 To adjust selected color pressSorT Important If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode colors return to the 6500K factory preset Informa...

Page 16: ... Menu displays the menu shown below Language Select allows the user to choose the language used in the menus and control screens Resolution Notice allows the user to enable or disable this notice OSD Position allows the user to move the OSD menus and control screens OSD Timeout sets the length of time the OSD screen is displayed For example with a 15 second setting if a control is not pushed withi...

Page 17: ... the display is operating in a factory Preset Timing Mode listed in the Specifications of this manual Exception This control does not affect changes made with the User Color control Language Select or Power Lock setting ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 14 ...

Page 18: ...all both of Contrast and Brightness to default 1 2 toggle display mode see segment Timing Table 1 White Balance Not shown on user s guide 1 Power Lock 1 OSD Lock No signal Burning mode 2 Factory Mode Remark All the short cuts function are only available while OSD off ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 15 ...

Page 19: ...tra ZoomTM Fully programmable zoom ratios Independent horizontal vertical scaling High quality zoom algorithm Programmable Sharpness Smooth enhancement Support Anamorphic and Panoramic scaling Memory Arbitor Embedded DDR SDRAM memory Arbitor Support tearless Frame Rate Conversion Color Processor Digital brightness and contrast adjustments sRGB compliance Support dual R G B 10 bit Gamma correction ...

Page 20: ...t one of them to display RTD2363 owns a capability to display YPbPr input source which normally come from DVD Player or Setup Box etc The YPbPr source can be into 1st or 2nd ADC pins TMDS Input RTD2363 integrates high speed single link receiver and high bandwidth content protection HDCP function It can operate up to 165Mhz It can effectively deal with the weak signal in long cable application whic...

Page 21: ...3 4 5 Burst length 2 4 8 Burst Type Sequential Interleave Full page burst length for sequential type only Start address of full page burst should be even All inputs except DQ s DM are at the positive edge of the system clock No Write Interrupted by Read function 4 individual DM control for write masking only Auto Refresh and Self Refresh 4096 refresh cycles 32ms Power supplies VDD 2 5V _ 5 VDDQ 2 ...

Page 22: ...ended to use such pin as input function An open drain pin means it can sink at least 4mA current It can be used as input or output function and needs an external pull up resistor An 8051 standard pin is a pseudo open drain pin It can sink at least 4mA current when output is at low level and drives at least 4mA current for 160nS when output transits from low to high then keeps driving at 120 uA to ...

Page 23: ...Vrms GV Closed Loop Gain Vol Ctrl 4 5V 28 5 30 31 5 dB GvLine Monitor Out Gain Vol Ctrl 4 5V Zload 30K 1 5 0 1 5 dB AMin VOL Attenuation at Minimum Volume Vol Ctrl 0 5V 80 dB BW 0 6 MHz ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS DC Supply Voltage 26 V VIN Maximum Input Voltage 8 Vpp Ptot Total Power Dissipation Tcase 60 C 6 W Tamb Ambient Operating Temperature 0 to 70 C Tstg Tj Storag...

Page 24: ...400 60Hz 31 5kHz 3 640 x 400 70Hz 31 5kHz 4 640 x 480 50Hz 24 7kHz 5 640 x 480 60Hz 31 5kHz 6 640 x 480 67Hz 35 0kHz 7 640 x 480 72Hz 37 9kHz 8 640 x 480 75Hz 37 5kHz 9 640 x 480 85Hz 43 27kHz 10 720 x 400 70Hz 31 5kHz 11 720 x 480 60Hz 31 5kHz 12 720 x 576 50Hz 31 3kHz 13 800 x 600 56Hz 35 1kHz 14 800 x 600 60Hz 37 9kHz 15 800 x 600 72Hz 48 1kHz 16 800 x 600 75Hz 46 9kHz 640 x 350 70Hz 31 5kHz 64...

Page 25: ... 8kHz 1280 x 768 75Hz 60 3kHz 1280 x 768 85Hz 68 6kHz 1280 x 960 50Hz 49 4kHz 1280 x 960 60Hz 59 7kHz 1280 x 960 75Hz 75 2kHz 1280 x 1024 60Hz 63 4kHz 1280 x 1024 75Hz 79 97kHz 1 4 2 Function Test Display Pattern Item Test Content Pattern Specification Remark 1 Frequency Tracking Fine Line Moire Eliminate visual wavy noise Figure 1 2 Contrast Brightness 16 Gray Scale 16 gray levels should be disti...

Page 26: ...n Figure1 Gray Scale Pattern Figure2 Horizontal Vertical Thickness Pattern Figure 3 R Color Pattern Figure 4 G Color Pattern Figure5 B Color Pattern Figure 6 ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 23 ...

Page 27: ...t This action will allow you to erase all end user s settings and restore the factory defaults 1 5 2 Auto Image Adjust Please select and enter Auto Image Adjust function on Main Menu to see if it is workable The Auto Image Adjust function is aimed to offer a better screen quality by built in ASIC For optimum screen quality the user has to adjust each function manually ViewSonic Corporation Confide...

Page 28: ...n Horizontal Vertical Line Thickness Pattern Check and see if the image boundary is within the screen frame If not readjust by the following steps a Select and enter Manual Image Adjust function on OSD Main Menu b Then select and enter Horizontal Size or Horizontal Vertical Position function to adjust the video boundary to be full scanned and within screen frame 1 5 7 White Balance Test Signal 128...

Page 29: ...play Modes Test Signal Analog 640 350 70Hz 640 480 60HZ 720 400 70Hz 800 600 60HZ 70HZ 75HZ 832 624 75Hz 1024 768 60HZ 70HZ 75HZ 1280 1024 60 75Hz Digital 640 350 70Hz 640 480 60HZ 720 400 70Hz 800 600 60HZ 70HZ 75HZ 1024 768 60 70 72 75 1152 870 75Hz 1280 1024 60Hz 75HZ Normally when the primary mode 1280 1024 60Hz is well adjusted and compliant with the specification the secondary display modes ...

Page 30: ...Upgrade VGA Cable PC Personal Computer LPT Cable Firmware Upgrade Program One additional monitor for checking the program execution 2 2 Setup Procedure 2 2 1 Connect P2 of Fixture with printer port of PC by LPT Cable 2 2 2 Connect P1 of Fixture with Monitor by VGA Cable 2 2 3 Connect Power Cord to Monitor 2 2 4 Connect PC to the additional monitor PC VGA Cable Printer Port LPT Cable VP720 ViewSoni...

Page 31: ...I ISP Download program procedure 1 Hardware Connect status 2 Down load isp program Step 1 Execute ISP exe ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 28 ...

Page 32: ...It need to be selected the MTV512MV64 for this project Then press the Creat Security File Button to enter step 3 Step 3 Creat Security File Enter the three string into the blank like fig 2 Then press OK Button ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 29 ...

Page 33: ...he Load MCU File button to select the file will be download hex Step 5 Run Pressing the Run Button to start download program Press OK button to Enter ISP mode ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 30 ...

Page 34: ...ISP status and Monitor Turn off the power of monitor AC plug off and disconnect the D Sub connector To connect the D Sub connector and then turn on the power of monitor AC plug on If the test result shows passed it means the connection is well If not failed it means the connection has problems Then you need to check the setup procedure or reboot the PC or simply use another PC to do the firmware u...

Page 35: ...nd the DDC does not conform to the monitor you have to do the DDC key in 3 1 Equipment Needed VP720 Series Monitor DDC Card PC RS232 cable DVI DVI Cable Barcode Reader VGA Cable VP720 DDC Card PC RS 232 Cable DVI DVI Cable Barcode Reader VGA Cable ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 32 ...

Page 36: ... port 3 Connect RS 232 Cable and VP720 with VGA Cable 4 when key in DVI DDC information use VGA transform to DVI port 5 Connect Power Cord to VP720 Monitor 3 3 DDC Key In Procedure 1 Run DDC exe 2 Choose model number and conform the Time then Press ENTER key ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 33 ...

Page 37: ...DDC 2B test interface 4 Press F8 to choose corresponding model DAT VP720 A DAT press ENTER key VP720_A means the DDC under analog mode VP720 D means the DDC under digital mode Choose DDC Card ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 34 ...

Page 38: ...s F9 enter the download interface 6 Key in the serial number or use the barcode reader to scan the barcode of the monitor and press ENTER key ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 35 ...

Page 39: ...ul picture is as follows Compare EDID OK Press any key to continue 8 Let VP720 active then see the information in OSD it shows Serial NO PXX054700001 ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 36 ...

Page 40: ...wSonic EDID Editor Connect the VP720 to PC with VGA Cable Excute 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 VP720 1_VP720b 1 37 ...

Page 41: ...tand unit from Monitor 1 1 Unscrew four screws that secure Stand Unit 2 Disassembly of Front Cover Rear Cover and Speaker 2 1 Detach Front Cover from monitor Stand Front Cover ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 38 ...

Page 42: ...2 2 Unscrew 6 screws to remove Rear Cover 2 3 Disconnect the wires to remove Speaker module Rear Cover Speaker ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 39 ...

Page 43: ...eypad Board and Panel Unit 3 1 Unscrew 6 screws to remove Shielding Plate 3 2 Unscrew 4 screws and disconnect the wires to remove Power Board Hinge Shielding Plate Power Board ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 40 ...

Page 44: ... remove Main Board 3 4 Lay Panel Unit facedown and unscrew 4 screws on its right and left sides to remove Panel Unit and Keypad Board Panel Bracket Keypad Board Panel Unit Main Board ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 41 ...

Page 45: ...gure 2 3 1 3 Put the cushions on the monitor Figure 4 1 4 Place the monitor into the carton and then put all the accessories into the carton At last close the carton and seal it with tape Figure 5 Figure 4 Figure 1 Figure 2 Figure 3 Figure 5 User s Guide Power Cord Audio Cable VGA Cable DVI Cable ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 42 ...

Page 46: ...ARD OK CHECK I102 SUROUND CAP BEAD OK CHECK I101 SUROUND CAP BEAD OK CHECK I105 SUROUND CAP BEAD OK CHECK P101 AND ROUND CAP OK CHECK I102 3 3V UROUND CAP OK CHECK I101 1 8V UROUND CAP OK CHECK I105 2 5V UROUND CAP OK N N N N Y Y Y ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 43 ...

Page 47: ... Q909 Q910 CHECK T901 T902 Y MAIN BOARD 5V 12V CHECK RESET CHECK VCC5V OK CHECK I106 PIN41 3 3V CHECK 24MHZ PIN15 16 OK CHECK PIN15 PIN16 CLOCK OK CHECK I106 EVERY TWO PIN SHORT CHECK C234 R208 D121 D116 R186 CHECK L804 D823 D822 OK CHECK Q103 Q104 D101 D102 L107 CHECK X102 C232 C233 OK CHECK TRACE OK CHECK KEYPAD P107 OK N N N N N N ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 ...

Page 48: ... P105 WIRE Check I106 Check I O cable Check P102 Check VCC2 5V 3 3V 1 8V Check I103 Check PANEL N N N N N N N N N N N N N N N N N N Y Y Y Y Y Some bits lost Check I108 Pin I103 poor soldering P105 poor soldering I108 or R pack soldering I106 poor soldering Lose color R or G or B Check P102 Pin 8 10 12 Check L108 109 110 R106 107 108 I108 fail or poor soldering Check Sign Cable Check C104 105 107 C...

Page 49: ...6 5 NO AUDIO Check jack P603 Check 12V Check I601 Check speaker Check Audio cable Check 12V TRACE Check P601 N N N ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 46 ...

Page 50: ...ies AC POWER CORD USA WALL 1 83M BLACK A PC 0106 0121 2427130046P P951 1 P Model VP720 1P Item ECR ECN ViewSonic P N Ref P N Location Universal number Q ty 1 Accessories AC POWER CORD TAIWAN WALL 1 83M BLACK A 00003623 2427130123P P951 1 G Model VP720 1G Item ECR ECN ViewSonic P N Ref P N Location Universal number Q ty 1 Accessories POWER CORD CHINA WALL 1 83M BLACK A PC 0106 0277 2427130097 P951 ...

Page 51: ... number Q ty 1 Accessories AC POWER CORD USA WALL 1 83M BLACK A PC 0106 0121 2427130046P P951 1 P Model VP720b 1P Item ECR ECN ViewSonic P N Ref P N Location Universal number Q ty 1 Accessories AC POWER CORD TAIWAN WALL 1 83M BLACK A 00003623 2427130123P P951 1 G Model VP720b 1G Item ECR ECN ViewSonic P N Ref P N Location Universal number Q ty 1 Accessories POWER CORD CHINA WALL 1 83M BLACK A PC 0...

Page 52: ... 35 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C164 1 000 36 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C165 1 000 37 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C166 1 000 38 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C167 1 000 39 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C169 1 000 40 E...

Page 53: ... CS 0603 COG 50V 100p J T C240 1 000 101 E C 0404 4828 2341110196P CAP CHIP 125 C CS 0603 COG 50V 100p J T C241 1 000 102 E C 0404 4828 2341110196P CAP CHIP 125 C CS 0603 COG 50V 100p J T C242 1 000 103 E C 0404 4828 2341110196P CAP CHIP 125 C CS 0603 COG 50V 100p J T C243 1 000 104 E C 0404 4828 2341110196P CAP CHIP 125 C CS 0603 COG 50V 100p J T C244 1 000 105 E C 0404 3815 2346410496P CAP CHIP ...

Page 54: ... PHILIPS D120 RC 1 000 155 N A 2364600496P DIODE SWITCH SMD MM4148 SOD 80 GRANDE D121 RA 1 000 156 E D 0403 1892 2364200896P DIODE RECT SMD BAS32L SOD80C PHILIPS D121 RB 1 000 157 E 00003830 2364601396P DIODE SWITCH SMD 1N4148W 7 F SOD 123 DIODES D121 RC 1 000 158 E 00003534 2363600696P DIODE SWITCH RLS4148 T11 SOD 80 ROHM D121 RD 1 000 159 N A 2364600496P DIODE SWITCH SMD MM4148 SOD 80 GRANDE D12...

Page 55: ...R NPN R SMD MMBT3904 F SOT23 DIODES Q105 RA 1 000 215 E Q 0402 1624 2360301696P XISTOR NPN R SMD PMBS3904 SOT 23 PHILIPS Q105 RB 1 000 216 E Q 0402 1608 2360300896P XISTOR NPN R SMD MMBT3904K SOT 23 FAIRCHILD Q105 RC 1 000 217 E Q 0402 1607 2360100596P XISTOR PNP R SMD MMBT3906 NL SOT23 FAIRCHILD Q106 RA 1 000 218 N A 2360100696P XISTOR PNP R SMD PMBS3906 SOT 23 PHILIPS Q106 RB 1 000 219 E Q 0402 ...

Page 56: ... 1 10W RC 0603 1 10W 33Kohm J T R181 1 000 285 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R182 1 000 286 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R183 1 000 287 E R 0405 6411 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R184 1 000 288 E R 0405 6411 2253210396P RES CHIP 1 10W RC 0603 1 10W 10Kohm J T R185 1 000 289 E R 0405 6419 2253247296P RES CHIP 1 10W RC 0603 ...

Page 57: ... 2336322613P CAP MINI ELE 105 C EC 22u 16V 4 7 P 2 5 T C189 1 000 355 N A 2336310613P CAP MINI ELE 105 C EC 10u 16V 4 7 P 2 5 T C192 1 000 356 N A 2336647513P CAP MINI ELE 105 C EC 4 7u 50V 4 7 P 2 5 T C234 1 000 357 N A 2404301108P CONNECTOR JST PH 9P SIDE P 2 0 OR EQUAL P101 1 000 358 N A 2407430900P SOCKET DHSB 15FTF7 BLUE 661C LEOCO P102 1 000 359 N A 2404381101P CONNECTOR 74320 4004 DVI D MOL...

Page 58: ...CH SMD 2N7002G SOT 23 Pyramis Q904 RB 1 000 421 N A 2360609196P FET N CH SMD 2N7002LT1G SOT 23 ON Q905 RA 1 000 422 N A 2360609496P FET N CH SMD 2N7002G SOT 23 Pyramis Q905 RB 1 000 423 N A 2360609196P FET N CH SMD 2N7002LT1G SOT 23 ON Q910 RA 1 000 424 N A 2360609496P FET N CH SMD 2N7002G SOT 23 Pyramis Q910 RB 1 000 425 N A 2360609196P FET N CH SMD 2N7002LT1G SOT 23 ON Q911 RA 1 000 426 N A 2360...

Page 59: ...3P CAP ELE LOW ESR 105 C EC 470u 16V 8 12 P 5 0 T C825 1 000 493 E 00003555 2302047291P CAP MTL MEF 4700pF 50V P 5 0 J T C826 1 000 494 E C 0404 1424 2333610591P CAP ELE 105 C EC 1u 50V 5 11 P 5 0 T C839 1 000 495 E C 0404 4833 2281110491P CAP CER CC 0 1u 50V Y5P P 5 0 K T C845 1 000 496 E C 0404 1833 2333622691P CAP ELE 105 C EC 22u 50V 5 11 P 5 0 T C901 1 000 497 E C 0404 1815 2281410491P CAP CE...

Page 60: ... 35 TSC D902 RC 1 000 566 E D 0403 0531 2363600195P DIODE SWITCH 1N4148 DO 35 D903 RA 1 000 567 N A 2363601795P DIODE SWITCH 1N4148TA_NL DO 35 FAIRCHILD D903 RB 1 000 568 N A 2363601895P DIODE SWITCH 1N4148 DO 35 TSC D903 RC 1 000 569 E D 0403 0531 2363600195P DIODE SWITCH 1N4148 DO 35 D904 RA 1 000 570 N A 2363601795P DIODE SWITCH 1N4148TA_NL DO 35 FAIRCHILD D904 RB 1 000 571 N A 2363601895P DIOD...

Page 61: ...ES CHIP 1 4W RC 1206 1 4 W 10 ohm J T R903 1 000 644 E R 0405 2744 2239222025P RES PRE 1 4 S RN 1 4WS 22Kohm F T R905 1 000 645 E R 0405 5980 2239210025P RES PRE 1 4 S RN 1 4WS 10Kohm F T R906 1 000 646 N A 2232410195P RES CBN 1 4 RD 1 4W 100 ohm J T52 R909 1 000 647 N A 2232410095P RES CBN 1 4 RD 1 4W 10 ohm J T R916 1 000 648 N A 2232410095P RES CBN 1 4 RD 1 4W 10 ohm J T R917 1 000 649 N A 2239...

Page 62: ...RC 1 000 717 N A 2374301204P XFORMER INVERTER TLT 1167L TAILON T901 RA 1 000 718 N A 2374301200P XFORMER INVERTER TK 2016M 101 DARFON T901 RB 1 000 719 N A 2374301204P XFORMER INVERTER TLT 1167L TAILON T902 RA 1 000 720 N A 2374301200P XFORMER INVERTER TK 2016M 101 DARFON T902 RB 1 000 721 N A 2363303800P DIODE SCHOTTKY GMR20H125C TO 220FPAB GAMMA D821 RA 1 000 722 N A 2363302200P DIODE SCHOTTKY S...

Page 63: ...W BND T M3 10 BNDT 5B13 4 000 781 N A 2028554801P NECK VP ARM DOWN B ABS94HB BLACK C 5B14 1 000 782 N A 2074194900P HOLDER CLIP STANDOFF NYLON BLACK 5B15 3 000 783 PL 00004557 2028260801P STAND VP720 ABS 94HB BLACK 4001 5B16 1 000 784 N A 2071877800P BRACKET FIX VP720 SECC T 2 0MM STAND 5B17 1 000 785 M SCW 0824 0848 2083740082P SCREW BND T M4 8 BND T 5B18 6 000 786 PL PD 0714 0113 2039819301P FOO...

Page 64: ...5 C CS 0603 Y5V 50V 0 1u Z T C167 1 000 39 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C169 1 000 40 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C170 1 000 41 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C172 1 000 42 E C 0404 3815 2346410496P CAP CHIP 85 C CS 0603 Y5V 50V 0 1u Z T C173 1 000 43 E C 0404 3815 2346410496P CAP CHIP 85 C C...

Page 65: ... 000 119 N A 2364601096P DIODE SWITCH SMD BAV99 SOT 23 PHILIPS D106 RB 1 000 120 E D 0403 1779 2364503996P DIODE ZENER SMD BZV55 C5V6 5 SOD 80C PHILIPS D107 RA 1 000 121 E D 0403 2808 2364505616P DIODE ZENER SMD TZMC5V6 SOD 80 5 2 6 0V VISHAY D107 RB 1 000 122 N A 2364505636P DIODE ZENER SMD BZV55 B5V6 2 SOD 80C PHILIPS D107 RC 1 000 123 E D 0403 1779 2364503996P DIODE ZENER SMD BZV55 C5V6 5 SOD 8...

Page 66: ...hm 0805 I 3 0A L115 1 000 201 N A 2379512196P BEAD HI CURRENT Z 120 ohm 0805 I 3 0A L116 1 000 202 N A 2379512196P BEAD HI CURRENT Z 120 ohm 0805 I 3 0A L117 1 000 203 E Q 0402 1180 2360301296P XISTOR NPN R SMD MMBT3904 F SOT23 DIODES Q101 RA 1 000 204 E Q 0402 1624 2360301696P XISTOR NPN R SMD PMBS3904 SOT 23 PHILIPS Q101 RB 1 000 205 E Q 0402 1608 2360300896P XISTOR NPN R SMD MMBT3904K SOT 23 FA...

Page 67: ...1 10W 1 0Kohm J T R176 1 000 282 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R177 1 000 283 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R180 1 000 284 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R181 1 000 285 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R182 1 000 286 N A 2253233396P RES CHIP 1 10W RC 0603 1 10W 33Kohm J T R183 1 000 287 E R 0405 641...

Page 68: ...404321230P CONNECTOR CF10301D0T0 CVILUX P105 1 000 364 M MS 0808 6355 2404301107P CONNECTOR JST PH 8P SIDE P 2 0 OR EQUAL P107 1 000 365 N A 2202522100P PCB MULTILAYER VP920 M B FR4 4 100 100 U101 1 000 366 E X 0415 0112 2369103901P XTAL OSC 24 576MHZ 49US 0 1mW 20pF X101 1 000 367 N A 2369105701P XTAL OSC 24 0000MHZ 49US 0 1mw 16PF X102 1 000 368 M SW 0815 0182 2403702200P TACT SWITCH TSAA 2 HUAJ...

Page 69: ...2251411036P RES CHIP 1 4 RC 1206 1 4 W 110Kohm F T R831 1 000 446 N A 2253410296P RES CHIP 1 4W RC 1206 1 4 W 1 0Kohm J T R832 1 000 447 N A 2253410496P RES CHIP 1 4W RC 1206 1 4 W 100Kohm J T R833 1 000 448 N A 2253410496P RES CHIP 1 4W RC 1206 1 4 W 100Kohm J T R834 1 000 449 N A 2253410496P RES CHIP 1 4W RC 1206 1 4 W 100Kohm J T R835 1 000 450 N A 2253410496P RES CHIP 1 4W RC 1206 1 4 W 100Koh...

Page 70: ...2 RC 1 000 527 N A 2361111991P XISTOR PNP R PN2907A TO 92 PHILIPS Q802 RD 1 000 528 E Q 0402 0555 2361313691P XISTOR NPN R KSC945CGTA TO 92 FAIRCHILD Q902 RA 1 000 529 E Q 0402 0718 2361316191P XISTOR NPN R 2PC945P TO 92 PHILIPS Q902 RB 1 000 530 E Q 0402 0428 2361302591P XISTOR NPN R 2SC945 AP TO 92 NEC Q902 RC 1 000 531 N A 2361320191P XISTOR NPN R HSC945 P TO 92 HSMC Q902 RD 1 000 532 E D 0403 ...

Page 71: ...0478 2428106100P JUMPER 0 6 10 0mm J905 1 000 611 M WR 0828 0455 2428106050P JUMPER 6 5 0mm J906 1 000 612 M WR 0828 0478 2428106100P JUMPER 0 6 10 0mm J908 1 000 613 M WR 0828 0455 2428106050P JUMPER 6 5 0mm J909 1 000 614 M WR 0828 0450 2428106075P JUMPER 0 6 7 5mm J910 1 000 615 M WR 0828 0460 2428106125P JUMPER 6 12 5mm J911 1 000 616 M WR 0828 0478 2428106100P JUMPER 0 6 10 0mm J912 1 000 617...

Page 72: ...6 RA 1 000 691 E 00001011 2361611100P FET N CH AOU402 TO 251 AOS Q906 RB 1 000 692 N A 2361612100P FET N CH STD1955NL TO 251 SamHop Q906 RC 1 000 693 E 00001012 2361611500P FET N CH AP9977GJ T TYPE TO 251 APEC Q907 RA 1 000 694 E 00001011 2361611100P FET N CH AOU402 TO 251 AOS Q907 RB 1 000 695 N A 2361612100P FET N CH STD1955NL TO 251 SamHop Q907 RC 1 000 696 E 00001012 2361611500P FET N CH AP997...

Page 73: ...VP720 SECC 2MM 3 20 PIVOT90 5B02 RA 1 000 770 N A 2106658001P HINGE VP720 SECC 2mm 3 20 PIVOT90TL 5B02 RB 1 000 771 N A 2027260503P DUST COVER VP920 ABS 94HB Midnight Gray 5B03 1 000 772 N A 2106658100P HINGE VP720 AJ HINGE H L 100MM 5B04 RA 1 000 773 N A 2106658101P HINGE VP720 AJ HINGE H L 100mm TL 5B04 RB 1 000 774 N A 2082340086P SCREW CSK SCREW CKS M4X8 NYLOK 5B05 4 000 775 N A 2074162500P HO...

Page 74: ...8 Exploded View And Exploded Parts List ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 71 ...

Page 75: ...ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 72 ...

Page 76: ...CK C 1 16 2 N A 2028554602P NECK uP B ABS 94HB Midnight Gray 1 17 1 N A 2028554701P NECK VP ARM DOWN F ABS94HB BLACK C 1 17 2 N A 2028554702P NECK DOWN F ABS 94HB Midnight Gray 1 18 M SCW 0824 0122 2084730102P SCREW BND T M3 10 BNDT 4 19 1 N A 2028554801P NECK VP ARM DOWN B ABS94HB BLACK C 1 19 2 N A 2028554802P NECK DOWN B ABS 94HB Midnight Gray 1 20 N A 2074194900P HOLDER CLIP STANDOFF NYLON BLA...

Page 77: ...11172001P CARTON BOX 1 12 N A 2055632176P LABEL 1 13 N A 2055613474P LABEL 1 Rev 1a Serial No Prefix PXW Item ViewSonic P N Ref P N Location Q ty VP720b monitor 1 1 M MS 0808 1317 2013053000P POLYETHY BAG 1 2 P 00004565 2012183700P POLYFOAM R 1 3 P 00004566 2012183800P POLYFOAM L 1 BASE ASS Y 1 4 N A 2013054020P POLYETHY BAG 1 5 DC 00004562 2438501222P CD OWNER GUIDE 1 6 DC 00004561 2002310541P GU...

Page 78: ...V901 LCD PANEL V Sync 5V 1 8V 2 5V 3 3V DDC SDA SDA SCL SDA I901 OZ9RR INVERTER AC 110 220V INPUT 12V ONBACKLITE RXO RXE CLK 5V 5V I601 TDA7496L AUDIO AMP OPTION P603 AUDIO IN P60 SPEAKE 12V ONBACKLITE R L R PANEL POWER H V 3 3V DDR DQ 31 0 DDR A 11 0 I103 DDR MEMORY IC 2 5V I104 24LC02 EEPROM DDC2 SDA DDC2 SCL ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 75 Model Title Date Rev...

Page 79: ...1 2 3 ADJ GND VOUT VIN R128 4 7K R135 10k R132 10K L105 NC D132 GS1B R255 NC 0 C132 NC L104 FEB_1206 C136 100u 16V C133 10uF 50V D124 1N4148 NC 1 2 C135 2200PF R124 1K L102 CX000800000 1206 D131 GS1B C138 100u 16V Q101 2N3904 1 2 3 R126 1K P101 9 8 7 6 5 4 3 2 1 C140 100nF C146 47uF_16V Q104 2N3906 1 2 3 C145 NC C142 100nF I105 LT1117 TO223 1 2 3 4 ADJ GND VOUT VIN 4 C141 100uF_16V C137 100u 16V D...

Page 80: ...30 10M L108 0 FEB_0603_19Ω R112 100 C111 12pF R103 100 D109 UDZ5 6B R104 2K D112 UDZ5 6B C116 100nF R102 100 D110 UDZ5 6B R113 100 D104 BAV99_SOT 3 1 2 D120 UDZ5 6B D105 BAV99_SOT 3 1 2 D106 BAV99_SOT 3 1 2 R106 75 C112 22pF R111 1K C101 5pF R122 NC R110 100 R123 NC D114 UDZ5 6B L110 0 FEB_0603_19Ω D111 UDZ5 6B C110 47nF R114 100 C103 5pF R108 75 C109 47nF D119 UDZ5 6B P103 DVI CON 25 1 2 3 4 5 6 ...

Page 81: ...TA 2 TCON 3 GPO 24 V3_DATA 3 TCON 4 GPO 25 V3_DATA 4 TCON 5 GPO 26 V3_DATA 5 TCON 7 GPO 27 V3_DATA 6 TCON 8 GPO 28 V3_DATA 7 VCC P GND G V1_CLK V1_DATA 0 V1_DATA 1 V1_DATA 2 V1_DATA 3 V1_DATA 4 V1_DATA 5 V1_DATA 6 V1_DATA 7 VCC P GND G GPO 9 DDC_SDA1b GPO 10 XOUT XIN GNDX G VDDX P VXTAL P TEST1PIN TEST2PIN GNDAPLL TSTPAD REXT TMDSV RX2P RX2N TMDSG RX1P RX1N TMDSV RX0P RX0N TMDSG RXCP RXCN TMDSG TM...

Page 82: ...9 C6 C7 K6 K7 D4 D6 D7 D9 K4 K9 E5 E6 E7 E8 F5 F6 F7 F8 G5 G6 G7 G8 H5 H6 H7 H8 L12 B3 B10 G3 G10 K8 K11 K12 L2 L3 L9 M2 M4 M5 L5 M6 M7 L8 M8 M9 M10 L7 K5 L6 DQ3 DQ4 DQ5 DQ6 DQ7 DQ0 DQ1 DQ2 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VDDQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VS...

Page 83: ... 5 P6 6 CLKO1 P6 7 X1 P3 2 INT0 P3 3 INT1 P3 4 T0 P3 5 T1 P7 6 CLKO2 P7 7 NC NC NC NC NC NC DA0 P5 0 DA1 P5 1 DA2 P5 2 DA3 P5 3 DA4 P5 4 R194 4 7K C237 100pF D115 NC 1N4148 1 2 R191 4 7K C238 100pF Q107 2N3906 1 2 3 R211 4 7K C239 100pF D121 1N4148 1 2 C240 100pF R199 4 7K C241 100pF C243 100pF C221 0 1u C242 100pF D122 1N4148 1 2 C244 100pF R185 10K I104 24C02 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL...

Page 84: ...S L P603 AUDIO INPUT GREEN 4 5 3 2 1 P603 pitch 2mm 1 2 3 C605 470U 16V C616 1n I601 TDA7496L 9 7 6 5 4 8 10 20 11 12 19 17 16 14 15 18 13 3 2 1 INR VAROUT_R VOLUME VAROUT_L INL NC SVR GND7 STBY MUTE GND6 OUTL VP2 OUTR VP1 GND5 GND4 GND3 GND2 GND1 C617 1n R613 10K L606 Bead L603 Bead 0805 R612 10K Q601 2SC945 SOCKET P601 TO SPEAER 4 3 2 1 L L R R L601 Bead 0805 R622 100 L602 Bead 0805 C606 470U 16...

Page 85: ... 82 5 1 CPT 1206 D916 NC R922 5 1K 1206 Q907 AP9977J D912 1N4148 SMD P903 1 2 C902 0 1uF DIP R918 1M 1206 R939 82 5 1 CPT 1206 R948 2K 1 DIP C919 0 068uF DIP R901 10K 1206 R943 1 5M 3KV DIP R946 274 1206 C915 0 01uF DIP C923 6 8nF DIP R923 3920 1 CPT CMO DIP D911 1N4148 SMD R944 2K 1 DIP R907 13K 1 1206 5V C927 1000PF DIP C930 330p DIP C916 22P 3KV DIP R942 274 1206 C901 22uF 50V Q910 2N7002K SOT ...

Page 86: ...I GND VDD VIN D816 1N4148 DIP R825 13K 1 1206 C821 1000PF 1Kv DIP R808 133K 1 1206 R849 3 92K SMD 1206 C804 NC D807 1U4G T2 5A 250V F801 C813 0 01UF 500V C801 0 47uF D823 SR36 Q804 MMBT3906 SMD R812 1M 1206 C820 1000PF 1KV DIP D824 NC R807 39 1206 I802 TLP621 4 3 1 2 R803 1M 1206 C810 33uF 50V R806 511K 1206 Q803 MMBT3904 SMD Q801 AP03N70F A R835 100K 1206 R830 1 18K 1 3 3V DIP R816 681 1206 C839 ...

Page 87: ...11 PCB Layout Diagrams 11 1 MAIN PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 84 ...

Page 88: ...11 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 85 ...

Page 89: ...11 3 CON PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 86 11 4 CON PCB BOTTOM VIEW ...

Page 90: ...11 5 POWER PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 87 ...

Page 91: ...11 6 POWER PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy VP720 1_VP720b 1 88 ...

Page 92: ...ty Systems Processes marc maupin viewsonic com d o o G t n e l l e c x E Precautions and Safety Notices 1 8 Exploded Diagram and Exploded Parts List 7 Recommended Spare Parts List Adjustment Procedure 2 Specification 5 4 Circuit Description 3 6 Troubleshooting Flow Chart Front Panel Function Control Description 9 Block Diagram 10 Schematic Diagrams 11 PCB Layout Diagrams Service Manual Content Ser...

Search results

Summary of Contents for VP720-1

Reviews:

Related manuals for VP720-1

Brands by name

Popular brands

ViewSonic VP720-1, Service Manual

Search results

Summary of Contents for VP720-1

Reviews:

Related manuals for VP720-1

Brands by name

Popular brands