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ViewSonic VS10931 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VE920m-1
VE920mb-1
Model No. VS10931
19" Color TFT LCD Display
(VE920m-1_VE920mb-1_SM Rev. 1b Aug. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic VE920m-1 VE920mb-1 Model No. VS10931 19” Color TFT LCD Display (VE920m-1_VE920mb-1_SM Rev. 1b Aug. 2006) 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

    Specification Front Panel Function Control Description Circuit Description Adjustment Procedure Troubleshooting Flow Chart Recommended Spare Parts List Exploded Diagram and Exploded Parts List Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 4: Precautions And Safety Notices

    (1) Since front polarizer is easily damaged, pay attention not to scratch it. (2) Be sure to turn off power supply when connecting or disconnecting input connector. (3) Wipe off water drops immediately. Long contact with water may cause discoloration or spots. VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 5 Limited Power Source (IEC60950 or UL1950), or an exemption should be applied for. (14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 6 Take out the monitor by grasping the LCD panel. That may cause “ MURA“. Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects . That could scratch the surface of panel VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 7: Specification

    HYGIENIC, SASO, PCBC, VCCI, BSMI, CCC, (PSB), (C-TICK), TUV-S, Green Mark, energy star GENERAL specification Test Resolution & Frequency 1280x1024 @ 60Hz Test Image Size Full Size Factory Default: Contrast and Brightness Controls Contrast = 70%, Brightness = 100% VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 8 Power Supply Cold Start WITH ALL COMBINATIONS OF INPUT VOLTAGE, INPUT FREQUENCY, AND OPERATING TEMPERATURE SHALL BE ABLE TO WITHSTAND AN EN61000-4-4 ±2KV TRANSIENT Power Supply Transient Immunity TEST WITH NO DAMAGE VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 9 Horizontal / Vertical Frequency 30 – 82 kHz Horizontal Frequency 50 – 85* Hz. Vertical Refresh Rate Maximum Pixel Clock 135 MHz (EDID file is 140MHz) Sync Polarity Independent of sync polarity. VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 10 ● The monitor needs to do “Auto Adjust” the first time a new mode is detected but except the DOS mode 640 x 350, 720 x 400 & 640 x 400.(see section “0-Touch™ Function Actions”) ● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 11: Front Panel Function Control Description

    White Balance. (Not shown on user’ s guide) [1] + [▼] Power Lock [1] + [▲] OSD Lock [XX] Audio Mute on /off Remark : All the short cuts function are only available while OSD off VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 12 , Mute* Color Adjust sRGB, 9300K, 6500K(default), 5400, 5000, User Color [R, G, B] Information H Frequency, V Frequency, Resolution, Pixel Clock, Serial Number, Model Number, “www.ViewSonic.com” Manual Image Adjust H. Size* , H./V. Position* , Fine Tune* , Sharpness*...
  • Page 13 (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 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 14 Connector PC99 requirement Audio in Cable type / length 3.5mm stereo cable / 1.8m length NOTE: THERE IS NO GUARANTEE <1 W POWER CONSUMPTION IN ACTIVE OFF MODE, WHEN THE Audio DPMS AUDIO CABLE IS CONNECTED VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 15 Setup Menu Simplified Chinese Traditional Chinese Resolution Notice On/Off Input Priority On/Off H Position (+ / -) OSD Position V Position (+ / -) OSD Time Out 5/15/30/60 OSD Background On/Off Memory Recall VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 16: Circuit Description

    The TSUM57AK also incorporates a new Dynamic Frame Rate (DFR) generator for the digital output video to the display panel that preserves the advantages of a fixed output clock rate, while eliminating the output end of frame short-line. VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 17: Adjustment Procedure

    Test Pattern: Window standard pattern Inspection Item: Line Defect, Function Defect & Mura 7. 25 Gray Test Signal: 1280*1024@60Hz Test Pattern: Full Screen 25% White (Gray) Inspection Item: Particle, Line Defect & Mura VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 18 Inspection Item: Bright Dot, Partial & Line Defect 14. Gray_Scale_0-100_V64 Test Signal: 1280*1024@60Hz Test Pattern: Vertical 64 (256) Gray Scale (Right → Left，From 0 to 100% White) Inspection Item: Line Defect & Function Defect VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 19 Full Screen 50% Red Figure 4 Green Full Screen 50% Green Figure 5 Blue Full Screen 50% Blue Figure6 White Full Screen White Figure7 Black_Tile Black Tile Under White Background Figure 8 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 20 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 21 If the O.S. was Win2000 or Win XP please have to install PORT95NT.exe Fig1 In order to ensure can execute ISP program, please set BIOS in PC or Notebook as Fig 2 Fig 2 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 22 2.2 After extracting the zip file, the total files list as Fig 2.2, and double click the file of setup.exe to install. Fig 2.2 2.3 Press “Next” button to continue., see Fig 2.3 Fig 2.3 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 23 2.4 Keep default setting or press “Change” button for selecting the path that you want , and then press“Next”button to continue, see Fig 2.4. Fig 2.4 2.5 Press “Install” button to continue, see Fig 2.5 Fig 2.5 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 24 2.6 The Installer Information shows package warning, press “Ignore” button to continue, see Fig 2.6. Fig 2.6 2.7 Installation has finished, press “Finish” button, see Fig 2.7. Fig 2.7 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 25 3.1 After installation, we could find the shortcut in the setting path or the program bar (default setting), see Fig 3.1 Fig 3.1 2.2 Security file is a key to use ISP function, press “確定” button, see Fig 3.2. Fig 3.2 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 26 3.3 The warning is used to remind user of that different CPU rate may cause ISP function fail(it is limited by IIC protocol), press “確定” button, see Fig 3.3. Fig 3.3 2.4 Press“Create Security File” button to key in security code. Adjusting bar to decrease speed of IIC bus, see Fig 3.4. Fig 3.4 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 27 Command No of security code, see Fig 3.5, and different security code between hardware ISP and software ISP. The security code of software ISP is set by user while coding, but the security code of hardware ISP is set by Myson Century. Fig 3.5 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 28 Fig 3.6 shows the setting for security code of hardware ISP, it needs Command No, and key in command sequentially 94, 94, AC, CA, Fig 3.6 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 29 Command No, and key in command sequentially 7C, 4C, 77. The Command No and command must be set by user while coding. About the detail of setting, please refer to Section 6 Boot code of ISP. Fig 3.7 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 30 4.3 CRC (cyclic redundancy check): the host can check CRC register’s result instead of reading every byte in flash. The message of Check MCU CRC OK means that the Host verify ok for the progress of program. Fig 4.1 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 31 5.1 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 Target” item, and press“RUN” button, the MCU content will show as Fig 5.1. Fig 5.1 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 32 5.2 If user uses hardware ISP to read MCU content, it shows as Fig 5.2. Fig 5.2 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 33 6 Re-entry the ISP Mode ‘Reset When you could not select or click MCU’ button and enter ISP mode again, you refer the message as below: VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 34 (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 erase MCU that instead of select or press ‘Reset MCU’. VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 35 (a) Clear watchdog to prevent reset during ISP period (b) Disable all interrupt to prevent CPU wake-up (c) Write ISP slave address (d) Write 93h to ISP enable address to enable ISP (e) Enter 8051 idle mode VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 36 7.4 The followings show the relationship between the code and the security code VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 37 8. ISP Adaptor Schematic 9. Adatptor Linking ISP Adaptor Connect with The Monitor Set Printer Cable PC/HOST 25Pins to 25Pins Connect with VGA Cable 15Pins to 15Pins VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 38 1.4 Place the monitor into the carton and then put all the accessories into the carton. As last, close the carton and seal it with tape. (Figure 4) Figure 3 Figure 4 VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 39 Step 1 : Press Stand Assy’s bottom part in Seat Hinge Step 2: Remove Seat Assy 5.1.2 Separate Stand Assy Step 1 : Loose and Remove 2 screws Step 2 : Remove Stand Assy VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 40 Remove Cover Hinge Step 2 : Loose and Remove 2 screws Step 3 : Separate Bezel hooks to take Bezel and Rear Cover apart. Step 4 : Remove Rear Cover Step 5 : Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 41 5.3 Remove Power Board 5.3.1 Remove FFC 5.3.2 Lift up LCD module and remove Bezel 5.3.3 Remove Metal Cover Step 1 : Loose and remove 4 screws VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 42 Step 2 : Loose and remove 2 screws Step 3 : Loose and remove 2 screws Step 4 : Remove the tape Step 5 : Remove 2 pieces of Backlight wires. VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 43 Step 6 : Remove the PCBA Cover 5.3.4 Remove Power PCBA Step 1 : Remove 2 pieces of Backlight wires. Step 2 : Loose and remove 4 screws Step 3 : Remove Power PCBA VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 44 Step 2 : Fasten 2 fixed screws of Power PCBA Step 3 : Insert 2 pieces of Backlight wires. 5.5 Remove AD PCBA 5.5.1 Remove FFC Step 1 : Remove 2 FFCs VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 45 Step 3 : Loose and remove 4 screws Step 4 : Remove AD PCBA Step 5 : Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 46: Change New Ad Pcba

    5.6 Change New AD PCBA Step 1 : Insert New AD PCBA Step 2 : Fasten 4 screws Step 3 : Insert FFC Step 4 : Insert 2 FFC Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 47 5.7 Metal Cover Assembly Step 1 : Place the PCBA Cover Step 2 : Insert 2 pieces of Backlight wires. Step 3 : Join the tape Step 4 : Fasten 2 screws VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 48 Step 5 : Fasten 2 screws Step 6 : Fasten 2 screws Step 7 : Place LCD module to LCD Bezel. Step 8 : Insert FFC VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 49 5.8 Remove OSD PCBA Step 1: Separate both Audio Cable Step 2 : Take OSD PCBA apart Step 3: Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 50 Step 1 : Place New OSD PCBA Step 2 : Insert Audio Cable to connectors of OSD PCBA Step 3: Completed 5.10 Rear Cover Assy Assembly Step 1 : Place Rear Cover VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 51 Step 2 : Fasten 2 screws Step 3 : Remove Cover Hinge 5.11 Stand Assy Assembly Step 1: Place Seat Assy Step 2 : Fasten 4 screws Step 3: Join Seat Assy VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 52: Troubleshooting Flow Chart

    Display Bright Dot Dark Dot Backlight Light Leakage Mura Panel Change Check Panel Image Sticking Brightness spot Particle Dot Defect Image Remain Group Bright Dots Others Cosmetics Defect TEST Next Step Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 53 Panel Change Check Panel Beat Display Shut Down Abnormal AD/B Change Display Wave Check PCBA Power/B Change CNT/B Change Check Panel Panel Change No Backlight Check Adapter Adapter Change TEST Next Step Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 54 Check Adapter Adapter Change No signal AD/B Change Check PCBA CNT/B Change R.G.B Display Abnormal VGA cable Check Wire Gray Scale DVI cable Display Check Panel Panel Change Abnormal TEST Next Step Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 55 Panel Change Band Defect Horizontal Band Defect Power Saving Display AD/B Change Check PCBA Check PCB Abnormal AD/B Change Power/B Change Peculiar Smell Check PCBA Check PCB Inverter/B Change TEST Next Step Complete VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 56 Power/B Change LED Off Abnormal Check PCBA Inverter/B LED Dark OSD/B Change LED Abnormal OSD Cable Check Wire LED Loss DC Power CNT Cable Change LED Flicker Adapter Change TEST Next Step Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 57 CNT/B Change Abnormal Power/B Change Loud Check PCBA Inverter/B Change Abnormal OSD/B Change Check Wire No Voice OSD Cable Change Loudspeaker L/R Same Check Loudspeaker Change Volume Loudspeaker Next Step TEST Noise Completed VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 58 Display Abnormal EDID Update Check EDID Code Check PCB Check PCBA TV /B Change TV Function Check Wire Display AV Cable Change Abnormal Remote controller Check Controller Change TEST Next Step Complete VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...
  • Page 59 Use OSD Color Menu to adjust color setting. Dark area distorted Use OSD Color Menu to adjust color setting. White color is not white Use OSD Color Menu to adjust color setting. VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 60: Recommended Spare Parts List

    Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation. This is to eliminate repeated cross checks of each item between this version and prior versions.
  • Page 61 Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items. Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation.
  • Page 62 BOM LIST (VE920m-1) ViewSonic Model Number: VS10931 Rev: 1a Serial No. Prefix: Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty MJ0E501K01 19" Semi Product,19E5-L01,Default L3J005XXXX 19" Cr TN (Panel Base) Common L4J005XXXX 73-C000047 ACF,COG,AC-8405Z-23 1.5mmX100M,100000 mmx1.5 mm,COG-ACF,Green I...
  • Page 63 BOM LIST (VE920mb-1) ViewSonic Model Number : VS10931 Rev.:1a Serial No. Prefix: Item ViewSonic P/N Ref. P/N Description Q'ty MJ0E501K01 19" Semi Product,19E5-L01,Default 7349951002 Silicone 7344191017 ACF,AC-4251FY-16,100M/RL,Green I 0.004 36X8002971 Driver IC,COF,Data,COF,M190E5-L01,Green I L3J005XXXX 19" Cr TN 8ms (Panel Base)

  • Page 64: Exploded Diagram And Exploded Parts List

    8. Exploded Diagram and Exploded Parts List ViewSonic Corporation Model Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 65 EXPLODED PARTS LIST (VE920m-1) ViewSonic Model Number: VS10931 Rev: 1a Serial No. Prefix: Q7T Item ViewSonic P/N Ref. P/N Description Q'ty MJ0E501K01 ISM_A190E3_HAT C-00005943 40-D008790 BEZEL ASSY 40-D003809 BEZEL 40-D003811 LENS 40-D003805 KEYPAD 33-D000377 SPEAKER 4ohm 2w 42-D001524 SCREW T2.5*10L...
  • Page 66 PACKING PART LIST (VE920m/mb-1 ) ViewSonic Model Number: VS10931 Rev: 1a Item ViewSonic P/N Ref. P/N Location Q'ty LCD Monitor VE920m P-00000595 7841919921 PE Foam Bag P-00005956 78-D008902 PS Foam (Right) P-00005955 78-D008901 PS Foam (Left) Different region (refer to BOM)

  • Page 67: Block Diagram

    9. Block Diagram Speaker OSD Key Pad / Audio Out 3.3V Main Board LCD Module D-sub Analog Video Signal DC-12V DC-5V LIPS AC Power Backlight Audio In VE920m-1_VE920mb-1 Confidential - Do Not Copy ViewSonic Corporation...

  • Page 68: Schematic Diagrams

    DC/DC V18C V33C GVON GVON GVON GVOFF GVOFF GVOFF V33P PANEL_ON/OFF GMA[1..14] GMA[1..14] GMA[1..14] VCM_PWM INVERTER I/F V33C V33P V33P POWER V18C INV_ON/OFF V33C INV_ADJ INV_ADJ ViewSonic Corporation Model Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 69 CP20 GND_POWER CP37 CP37 GND_POWER GND_POWER GND_POWER [INV_GND] CP38 CP38 RP50 RP50 CP39 CP39 RP52 RP52 RP53 RP53 ViewSonic Corporation RP51 RP51 CP40 CP40 RP54 RP54 Model Title GND_POWER GND_POWER Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 70 C163 C163 DAT1- DAT2+ DAT2- VCLK DAT3+ DAT3- DAT4+ GND_POWER DAT4- GND_POWER DAT5+ DAT5- clk+ clk- CLK+ GND_POWER CLK- R213 R213 V5A_ESD GND_POWER ViewSonic Corporation Model GND_POWER DVI INTERFACE Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 71 GND_INV R198 R198 V33C R199 R199 C162 C162 R200 R200 INV_ON/OFF GND_POWER V33C R195 R195 R196 R196 V33C R197 R197 INV_ADJ ViewSonic Corporation GND_POWER Model INVERTER I/F Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 72 KEY_DOWN GND_POWER KEY_UP R193 R193 10/20 SOURCE_SELECT VCM_PWM AUTO_ADJ PWR_SW LED_GR LED_OR DCDC_ON/OFF SCL1 SDA1 PANEL_ON/OFF GND_POWER GND_POWER (PANEL POWER CONTROL) VCPU DDC_DAT GND_POWER DDC_CLK ViewSonic Corporation GND_POWER Model Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 73 R216 R216 R217 R217 R184 R184 LED_G AUD_L1 AUD_L1 LED_GR AUD_G1 AUD_G1 AUD_R C169 C169 C170 C170 C167 C167 C168 C168 ViewSonic Corporation Model GND_AUD GND_AUD OSD INTERFACE GND_AUD Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 74 EG2N EG1P EG1P EG1N EG1N EG0P EG0P EG0N EG0N GND_POWER ER2P ER2P V33B ER2N ER2N ER1P ER1P ViewSonic Corporation ER1N ER1N ER0P ER0P ER0N ER0N Model GND_POWER PANEL I/F Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 75 C110 C110 C112 C112 GND_POWER C113 C113 C114 C114 C111 C111 C115 C115 R108 R108 GND_POWER GND_POWER GND_POWER VCM_PWM GND_POWER GND_POWER VCM_PWM GND_POWER GND_POWER GND_POWER ViewSonic Corporation Model POWER Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 76 VOL1 VOL1 C164 C164 R209 R209 R210 R210 VOL1 R211 R211 C165 C165 C166 C166 V33C GND_POWER V33C R212 R212 GND_POWER GND_POWER V18C ViewSonic Corporation V18C Model SCALER Title GND_POWER Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 77 DDC_DAT (0603/100) R133 R133 VGA_5V C128 C128 03/08/04 R134 R134 03/08/04 C129 C129 R135 R135 12/15/2003 R136 R136 GND_POWER VGA_5V R137 R137 VCLK ViewSonic Corporation GND_POWER GND_POWER Model GND_POWER Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...

  • Page 78: Pcb Layout Diagrams

    11. PCB Layout Diagrams ViewSonic Corporation Model Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 79 ViewSonic Corporation Model Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 80 ViewSonic Corporation Model Title TMSK Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 81 ViewSonic Corporation Model Title BMSK Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 82 ViewSonic Corporation Model Title TPATE Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 83 ViewSonic Corporation Model Title TSLK Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 84 ViewSonic Corporation Model Title Date Rev: VE920m-1_VE920mb-1 ViewSonic Corporation Confidential - Do Not Copy...
  • Page 85 Add: Tel: Fax: 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) VE920m-1_VE920mb-1 Confidential - Do Not Copy...

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