ViewSonic VA702-3 User Manual Download

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ViewSonic VA702-3

VA702b-3

Model No. VLCDS27998-3W

VLCDS27998-4W

17” Color TFT LCD

Display

(VA702-3_VA702b-3_SM Rev. 1a May 2006)

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

Service Manual

Summary of Contents for VA702-3

Page 1: ...nic VA702 3 VA702b 3 Model No VLCDS27998 3W VLCDS27998 4W 17 Color TFT LCD Display VA702 3_VA702b 3_SM Rev 1a May 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service M...

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 re...

Page 3: ...ty Notices 1 2 Specification 3 3 Front Panel Function Control Description 7 4 Circuit Description 9 5 Adjustment Procedure 17 6 Troubleshooting Flow Chart 40 7 Recommended Spare Parts List 42 8 Explod...

Page 4: ...T CHECK 4 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer during this check 4 2 Connect a 1500 ohm 10 watt resistor paralleled by a 0 15uF capacitor between each met...

Page 5: ...l or the front cover of the monitor Do not touch the surface of the polarizer Surface of the panel is pressed by fingers this may cause MURA Take out the monitor with cushion Take out the monitor by g...

Page 6: ...250 mV with no damage to monitor Sync Signals TTL DDC 1 2B Compliant with Revision 1 3 Video Compatibility Shall be compatible with all PC type computers Macintosh computers and after market video car...

Page 7: ...60Hz 37 9kHz 800 x 600 75Hz 46 9kHz 800 x 600 72Hz 48 1kHz 800 x 600 85Hz 53 7kHz 832 x 624 75Hz 49 7kHz 1024 x 768 60Hz 48 4kHz 1024 x 768 70Hz 56 5kHz 1024 x 768 72Hz 58 1kHz 1024 x 768 75Hz 60 0kH...

Page 8: ...1 Min Color Depth 16 million colors 6 bit panel Viewing Angle Horizontal 140 deg CR 10 160 deg CR 5 Viewing Angle Vertical 125 deg CR 10 145 deg CR 5 Response Time 10 90 Ta 25 C 8 ms Tr 6 ms Tf 2 ms...

Page 9: ...TAL Environmental Conditions Operating Temperature 0 C to 40 C Storage Temperature 20 C to 60 C Operating Relative Humidity 20 to 90 RH Non Condensing Storage Relative Humidity 5 to 90 RH Non Condensi...

Page 10: ...Off Displays the Main Menu or exits the control screen and saves adjustments Displays the control screen for the highlighted control Also toggles between two controls on some screens Also a shortcut...

Page 11: ...ming from the graphics card in your computer See your graphic card s user guide for instructions on changing the resolution and refresh rate vertical frequency VESA 1280 x 1024 60 Hz recommended means...

Page 12: ...g function AUTO IMAGE ADJUST CONTRAST BRIGHTNESS COLOR ADJUST INFORMATION MANUAL IMAGE ADJUST SETUP MENU MEMORY RECALL 1 4 CONTRAST and BRIGHTNESS can be directly controlled with UP DN key 2 CONNECTOR...

Page 13: ...0A load 12Vdc 5 3 2 2 Power Management State Power Indicator On 36Watt Green Standby 1Watt Amber Off 1Watt 3 3 Acceptable timing If your timing is within following specification this LCD display can a...

Page 14: ...D Manufacturer Name ________________ VSC 11 10 Product ID Code _____________________ B51D 12 15 Last 5 Digits of Serial Number ______ Not Used 16 Week of Manufacture _________________ 01 17 Year of Ma...

Page 15: ...112 pixels Border 0 pixels Frequency 63 98 KHz Vertical Active Time 1024 lines Blanking Time 42 lines Sync Offset 1 lines Sync Pulse Width 3 lines Border 0 lines Frequency 60 02 Hz Digital Separate Ho...

Page 16: ...oduct ID Code _____________________ B51D 12 15 Last 5 Digits of Serial Number ______ Not Used 16 Week of Manufacture _________________ 01 17 Year of Manufacture _________________ 2005 10 17 Complete S...

Page 17: ...Vertical Freq 85 Hz Min Horiz Freq 30 KHz Max Horiz Freq 82 KHz Pixel Clock 140 MHz Secondary GTF Not Supported ______________________________________________________________________ 108 125 Detailed...

Page 18: ...se input output GPIO pins Pin number Pin Name Pin Number Usage 21 P1 3 Key Power on off 13 P3 4 NV_RAM U4 SDA 14 P3 5 NV_RAM U4 SCL 25 P1 7 Key_down 9 P6 3 Key_right 24 P1 6 Key_up 16 P6 2 Key_left 37...

Page 19: ...ts for panel power 6 2 Power Inverter Board This is a specific power inverter power board for VA702 3 monitor 40W 12V 3 5A output power and backlight which converters 12 Vdc to drive four cold cathode...

Page 20: ...s 2 Button to enter Brightness Item Press 1 Button to exit the item 2 Brightness Item Press Up Button to make brightness high Press Down Button to make brightness low Press 2 Button to enter Contrast...

Page 21: ...on option Press Up Button to make current option high Press Down Button to make current option low b Vertical Position Option Press 2 Button to enter the Horizontal Position option Press 1 Button to e...

Page 22: ...item Press 1 Button to exit Resolution Notice item Enable Disable Option Press 2 Button to select the option Press 1 Button to exit the option Press Up Button to the previous option or Down Botton to...

Page 23: ...lect the option Press 1 Button to exit the option Press Up Button to the previous option or Down Botton to the next option 7 Memory Recall Page Press 2 Button to do the memory recall function Press 1...

Page 24: ...x 480 50Hz 24 7kHz Yes 5 640 x 480 60Hz 31 5kHz Yes 6 640 x 480 67Hz 35 0kHz Yes 7 640 x 480 72Hz 37 9kHz Yes 8 640 x 480 75Hz 37 5kHz Yes 9 640 x 480 85Hz 43 27kHz Yes 10 720 x 400 70Hz 31 5kHz Yes...

Page 25: ...saturated when brightness contrast is 100 Pattern 2 3 RGB color performance RGB color Check the color temperature of RGB signal color Pattern 3 4 5 4 Sub pixel defect RGB color Check the sub pixel def...

Page 26: ...ViewSonic Corporation Confidential Do Not Copy VA702 3_VA702b 3 23 Pattern 5 Pattern6 Pattern 7 Pattern 8 Pattern 9...

Page 27: ...eceived a received monitor please check whether the firmware version If not please following procedure to upgrade to the latest version 1 Equipment needed VA702 b 3 PC Personal computer LPT cable Fixt...

Page 28: ...ViewSonic Corporation Confidential Do Not Copy VA702 3_VA702b 3 25 Appendix A How to install the software for ISP...

Page 29: ...stall ISP 1 1 User could download ISP river and PORT95NT install from Myson Century website www myson com tw 1 2 After extracting the ZIP file the total files list as Fig 1 2 and double click the file...

Page 30: ...idential Do Not Copy VA702 3_VA702b 3 27 1 4 Keep default setting or press Change button for selecting the path that you want and then press Next button to continue see Fig 1 4 1 5 Press Install butto...

Page 31: ...ation Confidential Do Not Copy VA702 3_VA702b 3 28 1 6 The installer Information shows package warning Press Ignore button to continue see Fig 1 6 1 7 Installation has finished press Finish button see...

Page 32: ...3_VA702b 3 29 Appendix B How to use software to upgrade the BIOS 2 1 After installation we could find the shortcut in the setting path or the program bar default setting see Fig 2 1 2 2 Security file...

Page 33: ...30 2 3 The warning is used to remind user of that different CPU rate may cause ISP function fail it s limited by IIC protocol press button see Fig 2 3 2 4 Press Create Security File button to key in S...

Page 34: ...1 2 7 Fig 2 7 shows the setting for security code of software ISP it needs 2 command No and key in command sequentially for 7C 4C 77 The command No and command must be set by user while coding About t...

Page 35: ...gram into the MCU and select AUTO item then press RUN button see fig3 1 3 2 If user change the MTV type it must load file again or the buffer of load file will be cleared 3 3 CRC cyclic redundancy che...

Page 36: ...se ISP to read MCU content 4 1 Only software ISP could read the MCU content it is according to program the boot code while coding The limitation is used for the security of customer s code Select Read...

Page 37: ...ViewSonic Corporation Confidential Do Not Copy VA702 3_VA702b 3 34 5 Re entry the ISP Mode When you couldn t select or click Reset MCU button and enter ISP mode again you ll see the message as below...

Page 38: ...2 3_VA702b 3 35 Note 1 Disable the Enter ISP Mode option to avoid the error message display 2 If you using the MTV312M64 or before MCU serials the MCU will always in ISP Mode even Programming fail or...

Page 39: ...ection film to protect the monitor Figure 1 1 2 Put the monitor in PE bag seal the with tape Figure 2 Figure 1 Figure 2 1 3 Put the cushion on the monitor Figure 3 1 4 Put the monitor into carton put...

Page 40: ...he hinge caps Figure 5 2 2 Lay VA702 b 3 down take off the screws to remove the base Figure 6 Figure 5 Figure 6 2 3 Remove the screw cover Figure 7 2 4 Take of the screws Figure 8 Figure 7 Figure 8 2...

Page 41: ...ezel Figure 12 Figure 11 Figure 12 2 9 Tear off the AL foil all cables on M B lamp wires Figure 13 2 10 Take off the screws on the PCB holder remove the PCB holder with the boards Figure 14 Figure 13...

Page 42: ...PCB holder up side down remove the screws on the power board Figure 17 2 14 Remove the power board Figure 18 Figure 17 Figure 18 2 15 Separate the bezel panel with BKT remove the cable on panel Figur...

Page 43: ...ViewSonic Corporation Confidential Do Not Copy VA702 3_VA702b 3 40 6 Troubleshooting Flow Chart 1 No Power...

Page 44: ...2 No Characters Missing Color 3 Always show NO SIGNEL ViewSonic Corporation Confidential Do Not Copy VA702 3_VA702b 3 41...

Page 45: ...ks of each item between this version and prior versions RECOMMENDED SPARE PARTS LIST VA702 3 Description PC Board Assembly Hardware Packing Material Cabinets Cables Serial No Prefix Q5L Rev 1a Item EC...

Page 46: ...VER BK L7VC R3A GP 2 37 M SCW 0824 0728 MM30050IBJ3 SCREW M3 0 5 0 I NI GP 2 38 M SCW 0824 6948 MM30050FCI5 SCREW M3 0 5 F NI NYLOK GP 2 39 M MS 0808 9236 GAL7V008017 RUBBER PLUG VESA BK L7VC GAL7V008...

Page 47: ...L7VC GAL7V009 REV3A GP 2 37 M SCW 0824 0728 MM30050IBJ3 SCREW M3 0 5 0 I NI GP 2 38 M SCW 0824 6948 MM30050FCI5 SCREW M3 0 5 F NI NYLOK GP 2 39 M MS 0808 9237 GAL7V006014 RUBBER PLUG VESA L7VC GAL7V0...

Page 48: ...ViewSonic Corporation Confidential Do Not Copy 45 Model Title Date Rev ViewSonic Corporation Exploded diagram VA702 3_VA702b 3 8 Exploded Diagram and Exploded Parts List...

Page 49: ...1 E 00005784 AA17EL070A2 LCD TFT QDI QD17EL07 V11 1 22 M BK 0805 0080 FAL7V012014 LCD BKT L L7VC 1 23 M BK 0805 0129 FAL7V013011 LCD BKT R L7VC 1 24 M MS 0808 9248 FCL7A001014 AL FOIL L7A 2 25 M MS 08...

Page 50: ...R 1 21 E 00002216 AA17EL07055 LCD TFT QDI QD17EL07 V9 1 22 M BK 0805 0080 FAL7V012014 LCD BKT L L7VC 1 23 M BK 0805 0129 FAL7V013011 LCD BKT R L7VC 1 24 M MS 0808 9248 FCL7A001014 AL FOIL L7A 2 25 M M...

Page 51: ...tion Q ty 1 N A 1L7VCAXVS12 VA702b 3 1 2 P FM 0602 0840 HBL7V005019 END CAP L 1 3 P FM 0602 0841 HBL7V006015 END CAP R 1 4 DC 00005789 HGL7VC07010 QSG CD 1 5 A 00005252 DM333181G97 POWER CORD 3P 1 8M...

Page 52: ...face Panel Interface Panel Interface Control Analog RGB Crystal 14 318MHz EEPROM 24C08 CPU MTV312V64 17 Panel Backlight Power Board Backlight Control Inverter ON OFF Keypad Switch Si2301DS ISP Crystal...

Page 53: ...ViewSonic Corporation Confidential Do Not Copy VA702 3_VA702b 3 50 2 Power 12V MC34063 MC34063 AIC1739 12V 5V 2 5V 3 3V...

Page 54: ...GA MICRO CONTROLLER MTV312 ANALOG RGB DDC EEPROM 24LC16 3 3V LCDPWR_ON5 0V POWER LCDVCC 3 3V 3 3V 2 5V AIC1739 2 5V QDI LCD PANEL 17 LVDS 5 0V SCALAR MST8111A LVDS AC 100 240Vac INVCTRL 3 3V 3 3V BRIG...

Page 55: ...7u 6 C15 0 1U 6NC R8 33 6 D22 Z5 6 NC 2 1 R10 68 6 R22 100 6 NC L2 FCM 1608C 300T06 BULL WILL R26 10K 6NC R107 2K 6 NC C1 0 047u 6 D1 BAT54C GS08 NC C13 33P 6 D12 Z5 6 NC 2 1 D16 Z5 6 NS 2 1 D5 Z5 6 N...

Page 56: ...32 72 73 74 106 107 55 35 45 3 51 11 21 84 94 104 114 126 18 87 97 117 39 56 36 2 54 42 10 20 85 95 115 127 19 86 96 105 116 33 34 108 109 110 111 112 113 98 99 100 101 102 103 88 89 90 91 92 93 16 17...

Page 57: ...R92 2K 6 1 2 CN4 4501 10 10P R 1 2 3 4 5 6 7 8 9 10 R46 100 6 C54 0 1U 6 NC 1 2 R70 1K 6 R106 33K 1K 6 NC 1 2 D33 DAN217K 1 2 3 D26 EC10QS04 2 1 Q2 MMST3906 R105 33K 6 NC 1 2 R64 0 6 R98 100 6 C59 0...

Page 58: ...2 3 1 C80 0 1U 6 NC 1 2 C87 470P 6 1 2 1 H1 MTH276D126 2 3 4 5 6 7 8 9 C81 0 1U 6 NC 1 2 C74 0 1U 6 NC 1 2 L26 0 8 NC R83 0 1206 C76 2200P 6 1 2 R87 33K 6 C73 2200P 6 NC 1 2 1 1 C77 2200P 6 1 2 R75 1...

Page 59: ...e Rev ViewSonic Corporation BUTTON BOARD VA702 3_VA702b 3 green orange LED1 SW1 SW2 SW3 SW4 SW5 CN1 SW1 HDK632A 1 3 2 4 SW3 HDK632A 1 3 2 4 5 CN1 4500 10 8P R 1 2 3 4 5 6 7 8 SW5 HDK632A 1 3 2 4 5 SW2...

Page 60: ...11 PCB Layout Diagrams BUTTON 0 BUTTON 1 L 0 L 1 L 2 ViewSonic Corporation Confidential Do Not Copy 57 VA702 3_VA702b 3...

Page 61: ...Circuit Description 5 Adjustment Procedure 6 Troubleshooting Flow Chart 7 Recommended Spare Parts List 8 Exploded Diagram and Exploded Parts List 9 Block Diagrams 10 Schematic Diagrams 11 PCB Layout...

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