ViewSonic VE175-3-1 VS 10231 Service Manual
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ViewSonic VE175-3-1 VS 10231 Service Manual

ViewSonic VE175-3-1 VS 10231 Service Manual

17” color tft lcd display
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Service Manual

ViewSonic VE175-3-1
Model No. VS 10231
17" Color TFT LCD Display
(VE175-3_SM_963 Rev. 1a Dec. 2004)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VE175-3-1 VS 10231

  • Page 1: Service Manual

    Service Manual ViewSonic VE175-3-1 Model No. VS 10231 17” Color TFT LCD Display (VE175-3_SM_963 Rev. 1a Dec. 2004) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • Page 2: Revision History

    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.

  • Page 3: Table Of Contents

    4. Circuit Description 5. Adjusting Procedure 6. Trouble Shooting Flow Chart 7. Recommended Spare Parts List 8. Exploded Diagram And Spare Parts List 9. Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 4: Precautions And Safety Notices

    Reflector edge softly. Otherwise the TFT Module may be damaged. (10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor tilt the Interface Connector of the TFT Module. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 5 (14) The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit (IEC60950 or UL1950). Do not connect the CFL in Hazardous Voltage Circuit. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 6 “Mura”. touch the surface of the polarizer. Take out the monitor with cushions Taking out the monitor by grasping the LCD panel.That will probably cause “Mura”. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 7 Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 8: Specification

    This section describes the pin assignment of the LCD’s video connector. It is called 15 Pin Mini D-sub Connector. Pin NO. Signal Connector Red Video Signal Green Video Signal Blue Video Signal N.C. Ground Ground Ground Ground Ground N.C. DDC data Horizontal sync signal Vertical sync signal DDC clock Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 9 140 deg @ CR>10, Viewing Angle (Vertical) 130 deg @ CR>10, Response Time 16 ms (Tr= 12 ms, Tf = 4 ms) (typ) 10%-90% @ Ta=25°C 25ms (max) Panel Defects Please see Panel Quality Specifications. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 10 0 to +12,000 meters Dimensions (Base attached unless otherwise specified) Width 414.5 mm Height 403 mm Depth 229 mm Monitor Weight 5.7 kg /12.57lbs Ergonomics Tilt Up 20 degrees minimum Tilt Down 5 degrees Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 11: Front Panel Function Control Description

    Main Menu. Power On/Off Selects a highlighted control. Also, Scroll through menu displays the control screen for the options and adjust the selected control and toggles displayed control. between control pairs. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 12 • If necessary, make small adjustments using H. POSITION and V. POSITION until the screen image is completely visible . (The black border around the edge of the screen should barely touch the illuminated “active area” of the LCD dislay.) Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 13 — Individual adjustments for red, green, and blue. User To select color (R, G or B) press button [2]. To adjust selected color, press When you are finished making all color adjustments, press button [1] twice. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 14 Fine Tune or graphic characters. Try the Auto Adjust (see page 9) before using the Fine NOTE: Tune control. adjusts the clarity and focus of the screen image. Sharpness Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 15 OSD control screens you can also view open software applications, or the Windows desktop. returns adjustments to the original factory Memory Recall settings if the display is operating in a factory Preset Timing Mode listed in this user guide. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 16 [2] key at the same time and plug the AC cord. monitor. un-plug the AC cord and be sure the signal cable , Factory in Mode. then press [2] key at the same time and plug the AC cord. Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 17: Circuit Description

    The MTV312M micro-controller is an 8051 CPU core embedded device especially tailored for CRT/LCD Monitor applications. It includes an 8051 CPU core, 1024-byte SRAM, 14 built-in PWM DACs, VESA DDC interface, 4- channel A/D converter, and a 64K-byte internal program Flash-ROM. Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 18: Adjusting Procedure

    (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 and focus of the screen image. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 19 After final QC step, we have to erase all saved changes again and restore the factory defaults. You should do “All Mode Reset” again. 1.5.13 Power off Monitor Turn off the monitor by pressing “Power” button. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 20 C. Make sure the monitor was working under power saving mode and keep it at “Power Saving state” during DDC process. EDID-Kit Cable PC printer D-Sub of port 25pin Monitor connector 15pin VGA Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 21 (This data is within 0 ~ 99999, 5 numbers max.) D. Press “ESC” or “Enter” key to return main menu, the Fig-DDC2 will be displayed and the correct serial number will show on right corner of screen. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 22 Press 3 “DDC Writer/Check Data”: The Kit will start to program new data of EDID into monitor, all DDC data will display on the screen after programming. Please refer to Fig-DDC3 below, the DDC process is finished. Fig-DDC3 Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 23 Please refer to the Viewsonic EDID data format that was printing on ID label. PPPYYWWxxxxx PPP = Viewsonic Regional Product ID Code, EX. VE500 is “910”, VE700 is “A10” and VG900 is “A1C ”, VE175-3 is “P8D” . YY= 2 digits of Manufacturing year. (range 1996-2015).
  • Page 24 From Pc Signal To Monitor Insert4,8 ON(VE1753) (1,2,3,4,5,6,7, OFF) 12345678 Printer cable Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 25 1. We need 2 files for ISP windows version : Port95nt.exe and SAMPOISP_2.5a.zip . We can save them in t the same folder. 2. For Win2K and WinXP, Setup the Port95nt.exe program firstly. When the setup is completed, the PC need to restart.(For Win98, this procedure is not necessary) Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 26 3. Unzip SAMPOISP_2.5a.zip file in the same folder and Install the Setup.exe. 4. When the setup is completed, launch the Sampotech ISP program. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 27 Click “Creat Security File” button, we have to setup 3 addresses: ISP Slave Add. “7C” Slave Add. “7C” Command 1 “77” After setting ok, click OK to exit the Security menu. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 28 Choose the MTV type to MTV312M64. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 29 Click “Load MCU File” button and choose the file you want to update. 7. Click RUN button to start ISP. If the entrance procedure of ISP is correct, there will be a message box as the following picture. Click OK to program the MCU. Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 30 9. If the programming process is correct, the monitor will turn off and then turn on. Click Ok to exit the ISP mode. So far, we have finished the ISP programming process. Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 31: Trouble Shooting Flow Chart

    6. Trouble Shooting Flow Chart Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 32 Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 33 +1.8V_VDD(U7) MCU3V3 Check I2C Signal(include U2&U4 Clock(X1_12MHz) Rest time Iinput Signal(R G B H/V_Sync) Check 5V input Host Interface (AD0～AD&) (JP2,pin1,pin2) U2&U4 Power Zan3&Mcu Power Part VGA Signal Input I/F Board QPWB-5642T8 Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 34 RGB Signal error downer side Partly picture without Color H/Vsync error Vertical¡A Check I/F Horizontal None board synchronousness & panel A few of colorfully Check panel Vertical lines Even(or odd) vertical Line is dark Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 35: Recommended Spare Parts List

    7. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VE175-3) ViewSonic Model Number: VS10231 Rev: 1a Item Description ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty Accessories AC POWER CORD 1.8M A-PC-0106-0180 QACC-1126D8D--- PC Board Assembly: I/F BOARD B-00001028...

  • Page 36: Viewsonic Corporation

    BOM LIST (VE175-3) ViewSonic Model Number: VS10231 Rev: 1a Item ViewSonic P/N Ref.P/N Description Location Q'ty PL-PS-0715-0989 GSTN-2870D8F--A BASE BASE 1PCS M-MS-0808-8124 MHNGM0019D8---- HINGE HINGE 1PCS M-MS-0808-8901 LANGF2052D8---A BASE PLATE BASE PLATE 1PCS M-SCW-0824-6737 XESSD30P06000-- BASE PLATE/BASE*5 BASE PLATE/BASE*5 5PCS...
  • Page 37 Item ViewSonic P/N Ref.P/N Description Location Q'ty #N/A VRMDNVG--472J-A Resistor,SMT,0603,4.7KO,±5%,1/16W R24, R25, R71, R78 ,R79 ,R80, R82 7PCS #N/A VRMDNVG--104J-A Resistor,SMT,0603,100KO,±5%,1/16W 1PCS #N/A VRMDNVG--473J-A Resistor,SMT,0603,47KO,±5%,1/16W 1PCS #N/A VRMDNVG--750J-A Resistor,SMT,0603,75O,±5%,1/16W R10, R11, R12, R22 4PCS #N/A VRMDNVG-1000F-A Resistor,SMT,0603,100O,±1%,1/16W R6, R7, R8...
  • Page 38 Item ViewSonic P/N Ref.P/N Description Location Q'ty #N/A QCNWS0906T8029- OSD CABLE OSD CABLE 1PCS #N/A PISLV0250T8---- STICK ON MAIN BRACKET STICK ON MAIN BRACKET 1PCS MODEL: CPWBGE175T8HAN- Item ViewSonic P/N Ref.P/N Description Location Q'ty #N/A VVLHSD170ME13-- AU 17" PANEL AU 17" PANEL...

  • Page 39: Exploded Diagram And Spare Parts List

    8. Exploded Diagram And Spare Parts List Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 40 EXPLODED PARTS LIST (VE175-3) ViewSonic Model Number: VS10231 Rev: 1a Item ViewSonic P/N Ref. P/N Description Q'TY C-00001032 GCABA2301D8F--E FRONT COVER M-MS-0808-9174 HDECP1929D8F--- LENS PL-NB-0707-0214 JKNBP2309D8F--A FUNCTION KNOB B-00001030 DPWBN5614T8---- FUNCTION PCB HW-00001042 LANGF2086D8---K MAIN BRACKET M-BK-0805-0053 LANGF2066D8---- BRACKET(MAIN-SUB) PL-PS-0715-0989...
  • Page 41 1.3 Put the cushions on the monitor. (Figure 3) 1.4 Place the monitor into the carton and then put all the accessories into the carton. At last, The carton and seal it with tape. (Figure 4) Figure 3 Figure 4 Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 42 2. Disassembly Lie down the monitor on flat table Remove Base cover Remove Stand Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 43 Take out 2 screws at bottom side of CAB-B Take out 2 screws at bottom side of left shielding case Take out 3 screws of IF-board Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 44 Take off power +inverter board Take out 3 screws at bottom side of IF-board Disassemble the Stand if need Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 45: Block Diagram

    SCALER CN4 30 PIN gmZAN3L LVDS CABEL (DB15) (U2) Serial EEPROM (U4) 24C16 MYSON (U3) INVERTER 3.3V SWITCH MODE 1.8V POWER SUPPLY SW BOARD DPWBN5614T8---- CON2 17” LCD INVERTER+POWER RUNTP5624T8---- PANEL CON1 Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 46: Schematic Diagrams

    VGA_SCL VGA_SCL KEY_LEFT KEY_LEFT BKLT_EN MUTE BKLT_ADJUST AUD_ON 3. Input Connectors 4. gmZAN3SL 5. Display SHEET 6 AUD_ON MUTE BKLT_EN BKLT_ADJUST 6. Power&Audio Title VE175-3 Size Document Number DPWBN5642T8----;---A Date: 0/19/04 Sheet Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 47 ZAN3SL_VSYNC 4 10K/NC 10K/NC 100pF/NC 100R/NC 100pF/NC 100R/NC 24C21/NC EDID A-HS A-VS uC_HSYNC_IN 100pF/NC A-VS 100R uC_VSYNC_IN 100pF 100pF/NC 100pF VGA_SDA 4 VGA_SCL 4 Title VE175-3 Size Document Number Confidential - Do Not Copy ViewSonic Corporation VE175-3 DPWBN5642T8----;---A Date: 0/19/04 Sheet...
  • Page 48 P6.4/DA10 KEY_ONOFF 12MHz P1.0 Hscl/P3.0/Rxd 22pF MCU3V3 200R 0.1uF 22pF 100R gmZAN3SL MTV312MV 44-Pin PLCC Socket DDC_SCL HCLK/ALE DDC_SDA 100R 100R Title VE175-3 Size Document Number DPWBN5642T8----;---A 100R Date: 0/19/04 Sheet 100R Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 49 KEY_ONOFF 0603 100R KEY_LCD_ONOFF KEY_ONOFF 0603 SW3 4 SW2 4 OSD CON Title LED-GRN VE175-3 LED_GREEN 4 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF LED-ORANGE LED_ORANGE 4 Size Document Number DPWBN5642T8----;---A Date: 0/19/04 Sheet Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 50 All C's not otherwise specified are 50V type. 1.5Pitch 90 Degree DGND All resistorwich are not otherwise J2-2 specified are 1/6W. ¦@ Lay Title VE175-3 Size Document Number DPWBN5642T8----;---A Date: 0/19/04 Sheet Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 51: Pcb Layout Diagrams

    11. PCB Layout Diagrams MAIN BOARD Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 52: Control Board

    CONTROL BOARD Confidential - Do Not Copy ViewSonic Corporation VE175-3...

  • Page 53: Power Board

    POWER BOARD Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 54 Confidential - Do Not Copy ViewSonic Corporation VE175-3...
  • Page 55 Add.: Fax: Tel: E-mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com) Confidential - Do Not Copy...

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