ViewSonic VS10725 Service Manual
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ViewSonic VS10725 Service Manual

ViewSonic VS10725 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VP930/b
Model No. VS10725
19" Color TFT LCD Display
(VP930/b_SM Rev. 1a Oct. 2005)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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Summary of Contents for ViewSonic VS10725

  • Page 1: Service Manual

    Service Manual ViewSonic VP930/b Model No. VS10725 19” Color TFT LCD Display (VP930/b_SM Rev. 1a Oct. 2005) 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. Adjustment Procedure 6. Troubleshooting Flow Chart 7. Recommended Spare Parts List 8. Exploded Diagram and Exploded Parts List 9. Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VP930/b...

  • Page 4: Precautions And Safety Notices

    CFL 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 or tilt the Interface Connector of the TFT Module. Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 5 (14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 or UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit. Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 6 “Mura”. Take out the monitor with cushions Taking out the monitor by grasping the LCD panel.That will probably cause “Mura”. Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 7 Placing the monitor on foreign objects. foam pad. That will probably scratch the surface of the panel or cause “Mura.” The panel is placed facedown on the lap. That will probably cause “Mura.” Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 8: Specification

    Not compatible with interlaced video Horizontal / Vertical Frequency Horizontal Frequency 24 – 82 kHz Vertical Refresh Rate 50 – 85 Hz Maximum Pixel Clock 135 MHz Sync Polarity Independent of sync polarity Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 9: Timing Table

    1024 x 768 @ 50 Hz, 39.6 KHz 1024 x 768 @ 60 Hz, 48.4 KHz 1024 x 768 @ 70 Hz, 56.5 KHz 1024 x 768 @ 72 Hz, 58.1 KHz Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 10 1280 x 1024 @ 60 Hz, 64.0 KHz 1280 x 1024 @ 75 Hz, 80.0 KHz User Presets Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 11 On/Off Response Time Typical= 20 ms (Tr= 13 ms, Tf = 7 ms) 10%-90% @ Ta=25°C 8 ms (Avg) 3.0 mg per lamp Mercury Panel Defects Please see Panel Quality Specifications. Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 12: Image Performance

    ≧ Tilt Up 20º Tilt Down From 0º down to -3º ~ -5 º ≧ Swivel Right 135º ≧ Swivel Left 135º ≧ Height Adjust 135 mm Pivot 0~90 degress (clockwise) Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 13: Front Panel Function Control Description

    3. Front Panel Function Control Description 3.1 Location of Controls Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 14 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 15 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 16 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 17 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 18 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 19 No signal + [PW] +[2] + Burning mode Main Power on Signal + [PW] +[2] + Main Factory Mode Power on Remark : All the short cuts function are only available while OSD off Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 20: Circuit Description

    Flash-ROM, a 768-byte SRAM, 4 channels of PWM DAC, 4 channels of 6-bit ADC, and a built-in sync-processor. It also includes two IIC Slave B ports, supporting VESA DDC/CI for both D-sub and DVI interfaces, and a Boot-Code-Free ISP (In System Programming). Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 21: Adjustment Procedure

    5. Adjusting Procedure Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 22 30 minutes with the following conditions: (a) In room temperature, (b) With full-white screen, RGB, and Black (c) With cycled display modes, 640*480 (H=43.27 kHz, V=85Hz) 800*600 (H=53.7 kHz, V=85Hz) 1024*768 (H=68.67 kHz, V=85Hz) 1280*1024(H=80.0KHz, V=75Hz) Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 23 60 Hz, 47.8 KHz 1280 x 768 75 Hz, 60.3 KHz 1280 x 768 85 Hz, 68.6 KHz 1280 x 960 50 Hz, 49.4 KHz 1280 x 960 60 Hz, 59.7 KHz Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 24 - If not, please return the unit to repair area. 5-1.5.8 Screen Uniformity and Flicker Test Signal: 1280 x 1024 @ 60.0kHz Test Pattern: Full White Pattern - Check and see if it is in normal condition. Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 25 - VGA Cable (P/N: 42.59901.003) *1(Pin 4, 11 should be connected to GND) - PC (Personal Computer) - LPT Cable (P/N: 42.59906.001) *1 - Firmware Upgrade Program - One additional monitor for checking the program execution PC Fixture Printer Port VP930 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 26 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 ViewSonic Corporation D o Not Copy V P930/b...
  • Page 27 Press 3: For S/N,, the cursor will move to the column behind “Edit S/N” than you can key in the data you want after that press enter to exit and return. (This data is within 0 ~ 99999, 5 numbers max.) Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 28 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 ViewSonic Corporation D o Not Copy V P930/b...
  • Page 29 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 ”. YY= 2 digits of Manufacturing year. (range 1996-2015).
  • Page 30 5.4 . ISP procedure Connection of ＩSＰ Kit： Using ISP cable connect PC Print port Using VGA cable connect monitor (destination). Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 31 5. Click “Load MCU file” and then find the updated firmware code. 6. Click “Create Security File” going to next window MCU File Type Create Security File 7. Select Command No=4 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 32 9. Click “OK” to start ISP function and update the firmware into Monitor. 2.Input Value 1.Command No 3. OK 10. Firmware update is finished when the display backed to the window below. Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 33: Troubleshooting Flow Chart

    6.TROUBLE SHOOTING FLOW CHART Trouble Shooting Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 34 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 35 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 36 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 37 Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 38: Recommended Spare Parts List

    7. Recommended Spare Parts List RECOMMENDED SPARE PARTS LIST (VP930-1) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item Description ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty Accessories: POWER CORD A-PC-0106-0180 QACC-1126D8D--- AC POWER CORD PC Board Assembly:...
  • Page 39 RECOMMENDED SPARE PARTS LIST (VP930b-1) ViewSonic Model Number: VS10725-1W Rev: Serial No. Prefix: PQ8 Description Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number# Q'ty Accessories: POWER CORD A-PC-0106-0180 QACC-1126D8D--- AC POWER CORD PC Board Assembly: I/F BOARD ASS'Y B-00004101...
  • Page 40 BOM LIST (VP930-1) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty HW-00004136 GSTN-2957T8K--- STAND BASE (VP930) STAND BASE (VP930) #N/A XBPSB40P10JS0-- SCREW FOR HINGE STAND SCREW FOR HINGE STAND...
  • Page 41 BOM LIST (VP930-1 for I/F Board - DPWBN5718T8V---) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A QPWB-5718T8---- I/F BOARD I/F BOARD #N/A VSDAN202UT106-A DIODE D1 D2 E-D-0403-0531...
  • Page 42 QSW-A1236T8---- SWITCH SW1.(ROLLING BALL TILT) #N/A QSW-A1234T8---- 2nd SWITCH SW1.(ROLLING BALL TILT) (2nd) BOM LIST (VP930-1 for Key Board - DPWBN5722T8----) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item ViewSonic P/N Ref. P/N Description Location Universal number#...
  • Page 43 BOM LIST (VP930b-1) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ8 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A GSTN-2957T8K--B STAND BASE (VP930B) STAND BASE (VP930B) #N/A XBPSB40P10JS0-- SCREW FOR HINGE STAND SCREW FOR HINGE STAND...
  • Page 44 BOM LIST (VP930-1 for I/F Board - DPWBN5718T8V---) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty #N/A QPWB-5718T8---- I/F BOARD I/F BOARD #N/A VSDAN202UT106-A DIODE D1 D2 E-D-0403-0531...
  • Page 45 QSW-A1236T8---- SWITCH SW1.(ROLLING BALL TILT) #N/A QSW-A1234T8---- 2nd SWITCH SW1.(ROLLING BALL TILT) (2nd) BOM LIST (VP930-1 for Key Board - DPWBN5722T8----) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item ViewSonic P/N Ref. P/N Description Location Universal number#...

  • Page 46: Exploded Diagram And Exploded Parts List

    8.Exploded Diagram And Spare Parts List ViewSonic Corporation Model Title Date Rev: Confidential - Do Not Copy ViewSonic Corporation VP930/b...
  • Page 47 EXPLODED PARTS LIST (VP930-1) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ5 Item ViewSonic P/N Ref. P/N Description Q'ty C-00004132 GCABA2369T8F--- CAB-A PL-00004130 JKNBP2392T8F--- KNOB PL-00004124 HDECP2012T8F--- LENS B-00004103 DPWBN5722T8---- KEY BOARD PL-00004125 HBDGE1393T8---- LOGO PLATE E-00000927 VVLM190EN02V2-- 19” AUO PANEL...
  • Page 48 EXPLODED PARTS LIST (VP930b-1) ViewSonic Model Number: VS10725-1W Rev: 1a Serial No. Prefix: PQ8 Item ViewSonic P/N Ref. P/N Description Q'ty C-00004139 GCABA2369T8F--B CAB-A PL-00004123 JKNBP2392T8F--B KNOB PL-00004124 HDECP2012T8F--- LENS B-00004103 DPWBN5722T8---- KEY BOARD PL-00004125 HBDGE1393T8---- LOGO PLATE E-00000927 VVLM190EN02V2-- 19” AUO PANEL...
  • Page 49 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 50 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 ViewSonic Corporation D o Not Copy V P930/b...
  • Page 51 Disassembly Lie down the monitor on flat table Remove Back cover and Stand by 4 screw Remove CAB-B: Take out 4 screw Take off D-sub 6 screws Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 52 Remove the power board by 3 screws Remove the Inverter board by 2 screws Remove the I/F board by 2 screws Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 53: Block Diagram

    9. Block Diagram Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 54: Schematic Diagrams

    10.Schematic Diagram Confidential - Do Not Copy ViewSonic Corporation VP930/b...
  • Page 55 Confidential - Do Not Copy ViewSonic Corporation VP930/b...
  • Page 56 Confidential - Do Not Copy ViewSonic Corporation VP930/b...
  • Page 57 Confidential - Do Not Copy ViewSonic Corporation VP930/b...
  • Page 58 Confidential - Do Not Copy ViewSonic Corporation VP930/b...
  • Page 59 Confidential - Do Not Copy ViewSonic Corporation VP930/b...

  • Page 60: Pcb Layout Diagrams

    11. PCB Layout Diagrams IF-board Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 61 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 62 Confidential ViewSonic Corporation D o Not Copy V P930/b...

  • Page 63: Key Board

    Key board Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 64 Confidential ViewSonic Corporation D o Not Copy V P930/b...
  • Page 65 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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