Download ViewSonic VE1920wmb-2 Service manual

Service Manual
ViewSonic VE1920wmb-2
Model No. VS10866
19” Color TFT LCD Display
(VA1920wmb-2_SM Rev. 1a Aug. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright
Copyright © 2006 by ViewSonic Corporation. All rights reserved. No part of this publication
may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any means, electronic, mechanical, magnetic,
optical, chemical, manual or otherwise, without the prior written permission of ViewSonic
Corporation.
Disclaimer
ViewSonic makes no representations or warranties, either 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 a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision
SM Editing Date
1a
8/23/2006
ViewSonic Corporation
ECR Number
Description of Changes
Initial Release
Editor
Jamie Chang
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TABLE OF CONTENTS
1.
Precautions and Safety Notices
1
2.
Specification
3
3.
Front Panel Function Control Description
7
4.
Circuit Description
11
5.
Adjustment Procedure
12
6.
Troubleshooting Flow Chart
32
7.
Recommended Spare Parts List
40
8.
Exploded Diagram and Exploded Parts List
42
9.
Block Diagram
44
10. Schematic Diagrams
45
11. PCB Layout Diagrams
53
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1. Precautions and Safety Notices
1.1. Appropriate Operation
(1) Turn off the product before cleaning.
(2) Use only a dry soft cloth when cleaning the LCD panel surface.
(3) Use a soft cloth soaked with mild detergent to clean the display housing.
(4) Use only a high quality, safety approved AC/DC power cord.
(5) Disconnect the power plug from the AC outlet if the product will not be used for a long period of time.
(6) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD display off.
(7) Do not touch the LCD panel surface with sharp or hard objects.
(8) Do not place heavy objects on the LCD display, video cable, or power cord.
(9) Do not use abrasive cleaners, waxes or solvents for your cleaning.
(10) Do not operate the product under the following conditions:
-
Extremely hot, cold or humid environment.
-
Areas containing excessive dust and dirt.
-
Near any appliance generating a strong magnetic field.
-
In direct sunlight.
2. Caution
No modification of any circuit should be attempted. Service work should only be performed after you are thoroughly
familiar with all of the following safety checks and servicing guidelines.
3. Safety Check
Care should be taken while servicing this LCD display. Because of the high voltage used in the inverter circuit, the voltage is
exposed in such areas as the associated transformer circuits.
4. LCD Module Handling Precautions
4.1 Handling Precautions
(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.
(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 care of static electricity and ensure human earth when handling.
(7) Do not open or modify the Module Assembly.
(8) Do not press the reflector sheet at the back of the module in any direction.
(9) In the event that a Module must be put back into the packing container slot after it was taken out of the container, do
not press the center of the CCFL Reflector edge. Instead, press at the far ends of the 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.
(11) After installation of the TFT Module into an enclosure (LCD monitor housing, for example), do not twist or bend the
TFT Module even momentarily. When designing the enclosure, it should be taken into consideration that no
bending/twisting forces may be applied to the TFT Module from outside. Otherwise the TFT Module may be
damaged.
(12) The cold cathode fluorescent lamp in the LCD contains a small amount of mercury. Please follow local ordinances or
regulations for disposal.
(13) The LCD module contains a small amount of materials having no flammability grade. The LCD module should be
supplied with power that complies with the requirements of 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 or UL1950).
Do not connect the CCFL to a Hazardous Voltage Circuit
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Correct methods :
Only touch the metal-frame of the panel or the front
cover of the monitor.
Do not touch the surface of the polarizer .
Incorrect Methods :
Surface of the panel is pressed by fingers & this may
cause “ MURA “
Take out the monitor with cushion
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
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2. Specification
Introduction
TFTLCD PANEL
Input Signal
Sync Compatibility
Compatibility
Power Voltage
Power Consumption
Audio
Ergonomics
OSD Control
Dimension
Weight
Operating Condition
Storage Condition
Regulation
FEATURES
Size
Luminance (Typ, cd/㎡)
Contrast Ratio (Typ)
Colors ( 6 bit + 2 bit FRC)
Response Time (Typ)
Viewing Angle (H/V)
Recommend resolution
Analog (75ohms, 0.7/1.0 Vp-p)
Digital
Separate Sync
Composite Sync
Sync on Green
PC
Power Mac
TV Box (NextVision 6)
AC 100-240V, 50/60Hz
On Mode(Max / Typ)
Active Off Mode (Max)
Amplifier / Speaker
Tilt ( 20 ° to -5 °)
Swivel
Pivot
Height Adjust
[; X] [ 1 ] [▼] [▲] [ 2 ] [ ]
VE1920wm/wmb
19” wide
300 cd/㎡
500:1
16.2 M colors
8 ms
150 ° / 130 °
1440 x 900@60Hz
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
36W(max) / 32W(typ)
1W
1.5 W / 2.5W x 2
Yes
No
No
0-100mm
Yes
451 x 426 x 221 (mm)
Physical (W x H x D mm)
17.8 x 16.8 x 8.7 (in)
492 x478 x186 (mm)
Package (W x H x D mm)
19.3 x 18.8 x 7.3 (in))
Physical (Net kg/lb)
5.1 kg ( 11.2 lb)
Package (Gross Kg/lb)
6.6 kg ( 14.5 lb)
Temperature (℉/℃)
41℉-95℉/+5℃-+35℃
Humidity (%)
20 % - 80 %
Temperature (℉/℃)
-4℉-131℉/-20℃-55℃
Humidity (%)
20 % - 85 %
CB / TCO03 / UL/cUL / FCC-B / ICES 003 / Argentina-TUV/S / NOM / EPA
Energy Star / TUV/Ergo / ISO13406-2 / TUV/GS / CE / GOST-R / SASO / BSMI
/ PSB / C-Tick / Korea (MIC) / CCC
GENERAL specification
Test Resolution & Frequency
1440 x 900 @ 60Hz
Test Image Size
Full Size
Contrast and Brightness Controls
ViewSonic Corporation
Factory Default:
Contrast = 70%, Brightness = 100%
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VIDEO INTERFACE
Analog Input Connector
DB-15 (Analog), refer the appendix A
Digital Input Connector
DVI-D (Digital) ,refer the appendix B
Default Input Connector
Defaults to the first detected input
Video Cable Strain Relief
Equal to twice the weight of the monitor for five minutes
Video Cable Connector DB-15 Pin out
Compliant DDC 2B
Video Signals
1.
Video RGB (Analog)
2.
DVI (Digital)
Separate
Video Impedance
75 Ohms (Analog)
Maximum PC Video Signal
950 mV with no damage to monitor
Maximum Mac Video Signal
1250 mV with no damage to monitor
Sync Signals
TTL
DDC 2B
Compliant with Revision 1.3
Sync Compatibility
Separate Sync
Video Compatibility
Shall be compatible with all PC type computers, Macintosh computers,
and after market video cards
640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x 600, 832 x 624,
1024 x 768, 1152 x 864, 1280 x 768, 1280 x 960, 1280 x 1024, 1440 x
Resolution Compatibility
900
* The image vertical size might not be full screen.
But the image vertical position should be at the center.
Exclusions
Not compatible with interlaced video
POWER SUPPLY
Power Supply (Adapter)
Input Voltage Range
Input Frequency Range
Short Circuit Protection
Over Current Protection
Leakage Current
Efficiency
Fuse
Power Dissipation
Max Input AC Current
Inrush Current (Cold Start)
Power Supply Cold Start
Power Supply Transient Immunity
Power Supply Line Surge Immunity
Power Supply Missing Cycle Immunity
Power Supply Acoustics
ViewSonic Corporation
Part Number: 27-D003247
90 to 264 VAC
47 to 63 Hertz
OUTPUT CAN BE SHORTED WITHOUT DAMAGE
FUSE 3.15A TYPICAL AT 250 VAC
75 MA (MAX) AT 240VAC / 50HZ
80 % TYPICAL AT 100VAC @60HZ
INTERNAL AND NOT USER REPLACEABLE
32W(typ)
1.6 ARMS @ nominal RANGE
80 A @ 240VAC , 50HZ
SHALL START AND FUNCTION PROPERLY WHEN UNDER
FULL LOAD, WITH ALL COMBINATIONS OF INPUT VOLTAGE,
INPUT FREQUENCY, AND OPERATING TEMPERATURE
SHALL BE ABLE TO WITHSTAND AN EN61000-4-4 ±2KV
TRANSIENT TEST WITH NO DAMAGE
Shall be able to withstand ±2KV (L-L) and ±2.3KV (L-PE) with no
damage
Shall be able to function properly, without reset or visible screen
artifacts, when ½ cycle of AC power is randomly missing at nominal
input
The power supply shall not produce audible noise that would be
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detectable by the user. Audible shall defined to be in compliance with
ISO 7779 (DIN EN27779:1991) Noise measurements of machines
acoustics. Power Switch noise shall not be considered
Separate 3-prong NEMA 5-15P type plug. Length = 1.8m. Connects
to display.
Color = Black
Schuko CEE7-7 type plug.
Length = 1.8m, Connects to display.
Color = Black
Separate 3-prong type plug.
Length = 1.8m. Connects to display.
Color = Black
Separate 2-prong NEMA 1-15P type plug. Length = 1.8m. Connects
to display.
Color = Black
VESA DPMS Signaling
ON Mode < 36 W (max) / 32 W (typ)
ACTIVE OFF < 1 W
ON Mode = N/A, ACTIVE OFF < 5 sec
US Type Power Cable
European Type Power Cable
CCC Type Power Cable
PSE Type Power Cable
Power Saving Operation (Method)
Power Consumption
Recovery Time
ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency
Horizontal Frequency
30 – 82 kHz
Vertical Refresh Rate
50 – 85* Hz.
Maximum Pixel Clock
135 MHz (EDID file is 140MHz)
Sync Polarity
Independent of sync polarity.
Timing Table
Item
Timing
Analog
Digital
1
640 x 350 @ 70Hz, 31.5kHz
Yes
Yes
2
640 x 400 @ 60Hz, 31.5kHz
Yes*
Yes
3
640 x 400 @ 70Hz, 31.5kHz
Yes
Yes
4
640 x 480 @ 60Hz, 31.5kHz
Yes
Yes
5
640 x 480 @ 67Hz, 35.0kHz
Yes
Yes
6
640 x 480 @ 72Hz, 37.9kHz
Yes
Yes
7
640 x 480 @ 75Hz, 37.5kHz
Yes
Yes
8
640 x 480 @ 85Hz, 43.27kHz
Yes
Yes
9
720 x 400 @ 70Hz, 31.5kHz
Yes
Yes
10
800 x 600 @ 56Hz, 35.1kHz
Yes
Yes
11
800 x 600 @ 60Hz, 37.9kHz
Yes
Yes
12
800 x 600 @ 75Hz, 46.9kHz
Yes
Yes
13
800 x 600 @ 72Hz, 48.1kHz
Yes
Yes
14
800 x 600 @ 85Hz, 53.7kHz
Yes
Yes
15
832 x 624 @ 75Hz, 49.7kHz
Yes
Yes
16
1024 x 768 @ 60Hz, 48.4kHz
Yes
Yes
17
1024 x 768 @ 70Hz, 56.5kHz
Yes
Yes
18
1024 x 768 @ 72Hz, 58.1kHz
Yes
Yes
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19
1024 x 768 @ 75Hz, 60.0kHz
Yes
Yes
20
1024 x 768 @ 85Hz, 68.67kHz
Yes
Yes
21
1152 x 864@ 75Hz, 67.5kHz
Yes
Yes
22
1280 x 1024 @ 60Hz, 63.4kHz
Yes
Yes
23
1280 x 1024 @ 75Hz, 79.97kHz
Yes
No
24
1280x 768 @ 60Hz, 47.78kHz
Yes
Yes
25
1280 x 960 @60Hz, 60kHz
Yes
Yes
26
1440 x 900 @ 60Hz, 55.96kHz
Yes
Yes
*The image vertical size might not be full screen.
Primary Presets
1440 x 900 @ 60Hz
User Presets
Number of User Presets (recognized timings) Available: 10 presets total in FIFO configuration
Changing Modes
● Maximum Mode Change Blank Time for image stability : 3 seconds (Max), excluding “Auto Adjust” time
● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), there is no “Auto Adjust” feature.
● 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
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3. Front Panel Function Control Description
Front Panel Hardware Controls
Power Switch (Front Head)
Power Control, soft Power Switch.
Power LED (Front Head)
Green – ON
Orange – Active Off
Dark = Soft Power Switch OFF
[ ] Power
[ 1 ] BUTTON 1
[ 2 ] Button 2
[▲] UP ARROW BUTTON
[▼] DOWN ARROW BUTTON
[; X] Audio Mute on/off
Front Panel Controls (Head)
[;X] [ 1 ] [▼] [▲] [ 2 ] [ ]
Note: Power Button, Button 1 and Button 2 and Mute Button must be
one-shot logic operation. (i.e. there should be no cycling)
Reaction Time
OSD must fully appear within 0.5s after pushing Button 1
Short Cuts Function from the button(s)
[1]
Main Menu
[2]
Input toggle (Analog or Digital)
[▼] or [▲]
[▼] + [▲]
[1] + [2]
[1] + [▼] + [▲]
To immediately activate Contrast menu. It should be change to Brightness OSD by
push button [2]
Recall both of Contrast and Brightness to default
Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode
White Balance. (Not shown on user’s guide)
[1] + [▼]
Power Lock
[1] + [▲]
OSD Lock
[;X]
Audio Mute on /off
Remark : All the short cuts function are only available while OSD off
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Main Menu Controls
Auto Image Adjust*1
Contrast/Brightness*2*4
Input Select
Analog, Digital
Audio Adjust
Volume*4, Mute*4
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*1, H./V. Position*1, Fine Tune*1, Sharpness*3
Setup Menu
Language [English, French, German, Spanish, Italian, Finnish, Japanese, Traditional Chinese, Simplified Chinese],
Resolution Notice, OSD Position, OSD Timeout, OSD Background
Memory Recall
*1 These functions are not available in Digital Mode
*2 These functions are not available under sRGB Mode
*3 These functions are not available under Native Resolution Mode
*4 These functions setting can be recalled to default by [▼]+[▲]
[Remark] Please refer to the detail in the Appendix C
Function descriptions
OSD Lock short cuts function for the buttons
The OSD lock will be activated by pressing the front panel control buttons "(1), & (▲)" for 10 seconds. If the user then tries to
access the OSD by pressing any of the buttons "1", "▼", "▲", "2" a message will appear on the screen for 3 seconds showing
"OSD Locked". The OSD lock will be deactivated by pressing the front panel control buttons "(1), & (▲)" again for 10
seconds.
Note1: When the OSD is locked will lock all functions, including “Volume” and “Mute”
Note 2: Status bar indicating OSD Lock or Unlock is in progress and when complete it will indicate “OSD Locked”
Note 3: OSD Lock should not lock Power Button and Power Lock function
Power Lock short cuts function for the buttons
The power button lock will be activated by pressing the front panel control buttons "(1), & (▼)" for 10 seconds. Locking the
power button means that the user won't be able to turn off the LCD while the power button is locked. If the user presses the
power button while it is locked, a message will appear on the screen for 3 seconds showing "Power Button Locked". It also
means that with the power button locked, the LCD would automatically turn back "On" when power is restored after a power
failure. If the power button is not in the locked mode, then power should return to it's previous state when power is restored
after a power failure. The power button lock will be deactivated by pressing the front panel control buttons "(1), & (▼)" again
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for 10 seconds.
Note 1: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate “Power Button
Locked”
Note 2: Power should only be lockable in the “On State”
Memory Recall Actions
Memory Recall action on the analog and digital mode as below
1. Set the factory defaults as shown in Section 4-8
2. Clean all the mode setting buffer
3. Execute Auto Image Adjust
Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or Input Priority
Resolution Notice Actions
1.
Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec
2.
The OSD should disappear after 10 sec or by pushing button [1] or [2]
Resolution Notice function should be disabled when push button [2] under Resolution Notice OSD
0-Touch™ Function Actions
1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for further use
2. It should be reset by Memory Recall function
(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
AUDIO INTERFACE (SPEAKER SPECIFICATION)
Line input connection
3.5 mm stereo jack
Line input signal
1 Vrms
Line input impedance
20k ohms
Maximum power output (Electric)
1.5W / CH
Signal to Noise Ratio
72 dB
Frequency response
300 TO 20KHZ
Distortion
8%@1kHz
There should be no audible vibration with volume at 100%. (Input
Vibration
Screen image
signal within 1 Vrms)
There should be no affect on the screen image stability under any
conditions
Connector PC99 requirement Audio in
Lime Green pantone # 577C
Cable type / length
3.5mm stereo cable / 1.8m length
Audio DPMS
NOTE: THERE IS NO GUARANTEE <1 W POWER
CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO
CABLE IS CONNECTED
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OSD Table
Layer 1
Layer 2
Layer 3
Auto Image Adjust
Contrast/Brightness
Contrast (+ / -)
Brightness (+ / -)
Input Select
Analog
Digital
Audio adjust
Volume (+, -)
Mute
On/Off
sRGB
9300K
6500K
Color Adjust
5400K
5000K
Red (+ / -)
User Color
Green (+ / -)
Blue (+ / -)
Information
Horizontal Size
+/H Position (+ / -)
H/V Position
Manual Image Adjust
V Position (+ / -)
Fine Tune
+/-
Sharpness
+/English
French
German
Spanish
Language Select
Italian
Finnish
Japanese
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
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4. Circuit Description
The TSUM57AK is total solution graphics processing IC for LCD monitors with panel resolutions up to SXGA. It is
configured with a high-speed integrated triple-ADC/PLL, an integrated DVI receiver, a high quality display processing engine,
and an integrated output display interface that can support RSDS panel interface format. To further reduce system costs, the
TSUM57AK also integrates intelligent power management control capability for green-mode requirements and spreadspectrum support for EMI management.
The TSUM57AK incorporates the world’s first coherent oversampled RGB graphics ADC in a monitor controller system. The
oversampling ADC samples the input RGB signals at a frequency that is much higher than the signal source pixel rate. This
can preserve details in the video signal that ordinarily would be lost due to input signal jitter or bandwidth limitations in
non-oversampled systems. 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.
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5. Adjustment Procedure
A. Function Test and Alignment Procedure
1. All Modes Reset
You should do “All Model Reset” (Refer to Chap 3. Hot Keys for Function Controls) first. This action will allow
you to erase all end-user’s settings and restore the factory defaults.
2. Auto Image Adjust
The Auto Adjust is aimed to offer a best screen quality by built-in ASIC. For optimum screen quality, the user
has to adjust each function manually.
A.Turn the computer and LCD monitor on.
B. Press the ‘Auto’ button on monitor keypad to Auto Adjust.
C. The LCD monitor will start the Auto Adjust process automatically and run for 10 consecutive seconds, during
which time you will notice the image change.
3. Firmware
Test Patten: Burn in Model (Refer to Chap3. Hot Keys for Function Control)
-Make sure the F/W is the latest version.
4. DCC
Test Patten: EDID program
-Make sure it can pass test program.
5. Window Shut Down
Test Signal: 1280*1024@60Hz
Test Pattern:
Checkered Pattern Every One Pixel (50%Green & 50%Blue)
Inspection Item: Flicker, Mura
6. Window BG
Test Signal: 1280*1024@60Hz
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
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8. 50 Gray
Test Signal: 1280*1024@60Hz
Test Pattern:
Full Screen 50% White (Gray)
Inspection Item: Bright Dot, Particle, Line Defect & Mura
9. White Box
Test Signal: 1280*1024@60Hz
Test Pattern:
Window standard pattern
Inspection Item: Particle, Line Defect, Power, Image Remain & Mura
10. Black Box
Test Signal: 1280*1024@60Hz
Test Pattern:
Window standard pattern
Inspection Item: Bright Dot, Line Defect & Power
11. RED
Test Signal: 1280*1024@60Hz
Test Pattern:
Full Screen Red
Inspection Item: Bright Dot, Partial & Line Defect
12. Green
Test Signal: 1280*1024@60Hz
Test Pattern:
Full Screen Green
Inspection Item: Bright Dot, Partial & Line Defect
13. Blue
Test Signal: 1280*1024@60Hz
Test Pattern:
Full Screen Green
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
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15. Function Test Display pattern
Item
Pattern
Description
Remark
1
Gray_Scale_0-100_V
Vertical 64 (256) Gray Scale (右→左，From 0 to 100% White)
Figure 1
2
Gray_Scale_0-100_H
Horizontal 64 (256) Gray Scale (上→下，From 0 to 100% White)
Figure 2
3
Black
Full Screen Black
Figure 3
4
Red
Full Screen 50% Red
Figure 4
5
Green
Full Screen 50% Green
Figure 5
6
Blue
Full Screen 50% Blue
Figure6
7
White
Full Screen White
Figure7
8
Black_Tile
Black Tile Under White Background
Figure 8
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Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
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BIOS update procedure
Mstar ISP Tool User Manual
Setp1:
Take the cable of Print Port to connect Print Port of PC and Print Port of fixture(and EDID burn in the same fixture) to connect
VGA Cable between D-sub of fixture and D-sub of AD Board of monitor，the monitor must be turned on the power。
Step 2 :
Open ISP Tool
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Step 3 :
Press ”connect” into ISP mode，display the model of Flash，The dialog of figure is displayed “Device Type is Pm25LV512”
then press ”確定”。
Step 4:
to down load the program of BIOS (*.bin)。
Press ”Read” then enter as below figure，then press
If down load BIOS that is successful as below figure then press”確定”。
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Step 5 :
Press ”Auto” into below figure that display the value of BIOS Checksum below figure is displayed “0x1626” then press ”Run”
to execute the BIOS procedure。
The BIOS procedure is displayed the message ”Verify OK” that the BIOS procedure is successful。
Step 6 :
Press ”Dis Con” then leave the mode of ISP。
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Step 7：
When select ”ReConnect” and press “Run” then repeat to connect the mode of ISP into next the action of BIOS procedure
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Monitor Assembly and Disassembly
1 Separate Stand Assy
1.1 Remove Seat Assy
Step 1 :
Press Stand Assy’s bottom part in
Seat Hinge
Step 2:
Remove Seat Assy
1.2 Separate Stand Assy
Step 1 :
Loose and Remove 2 screws
Step 2 :
Remove Stand Assy
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2 Separate Rear Cover (Rear Case Assy)
Separate Bezel hooks to take Bezel and Rear Cover apart.
Step 1 :
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
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3 Remove Power Board and AD Board
3.1 Remove Metal Cover
Step 1 :
Remove FFC from OSD Board.
Step 2 :
Loose and remove 4 screws.
Step 3 :
Lift up LCD module and remove bezel.
Step 4 :
Remove 2 pieces of Backlight wires.
Step 5 :
Remove 2 pieces of Backlight wires.
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Step 6 :
Loose and remove 4 screws.
Step 7 :
Loose and remove 2 screws.
Step 8 :
Loose and remove 4 screws.
Step 9 :
Remove the PCBA Cover
3.2 Remove Power Board and AD Board
Step 1 :
Loose and remove 4 screws.
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Step 2 :
Remove Lips Board
Step 3 :
Remove 2 pieces of FFCs.
Step 4 :
Remove the FFC.
Step 5 :
Loose and remove 4 screws.
Step 6 :
Remove AD PCBA.
Step7 :
Completed.
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4 Change New AD Board and Power Board
Step 1 :
Place new AD Board.
And fasten 4 fixed screws.
Step 2 :
Fasten 4 fixed screws.
Step 3 :
Insert FFC.
Step 4 :
Insert 2 pieces of FFCs .
Step 5 :
Insert new Lips Board.
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Step 6 :
Fasten 4 fixed screws.
Step 7 :Completed.
5 Remove OSD Board
Step 1 :
Separate both Audio Cable.
Step 2 :
Take OSD Board apart.
Step 3:
Completed.
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6 Change New OSD Board
Step 1 :
Place New OSD Board.
Step 2 :
Insert Audio cable to connectors of
New OSD Board.
Step 3:
Completed.
7
Add Cover to AD PCB Heatsink
Step 1 :
Join the PCB Cover.
Step 2 :
Fasten 4 fixed screws.
Step 3 :
Fasten 2 fixed screws
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Step 4 :
Fasten 4 fixed screws.
Step 5 :
Insert 2 pieces of Backlight wires.
Step 6 :
Insert 2 pieces of Backlight. wires.
Step 7 :
Join LCD module and remove bezel.
Step 8 :
Fasten 4 fixed screws.
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Step 9 :
Insert FFC.
Step 10 :
Completed.
8 Rear Cover Assy Assembly
Step 1 :
Place Rear Cover
Step 2 :
Fasten 2 screws
Step 3 :
Remove Cover Hinge
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9
Stand Assy Assembly
Step 1:
Place Seat Assy
Step 2 :
Fasten 4 screws
Step 3:
Join Seat Assy
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Packing For Shipping And Disassembly Procedure
Packing For Shipping
1. Packing Procedure
1.1 Paste protection film to protect the monitor. (Figure 1)
1.2 Put the monitor in the PE bag and seal the bag with tape. (Figure 2)
Figure 2
Figure 1
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. As last, close the carton and seal it with
tape. (Figure 4)
Figure 4
Figure 3
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6. Troubleshooting Flow Chart
Defect Mode
Failure Analysis
Light On Test
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
Flash Dots
Abnormal
Display
Bright Dot
Dark Dot
Backlight
Light Leakage
Mura
Check Panel
Panel Change
Image Sticking
Brightness spot
Particle
Dot Defect
Image Remain
Group Bright
Dots
Others Cosmetics
Defect
Next Step
NG
A
ViewSonic Corporation
TEST
Completed
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Defect Mode
Failure Analysis
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
A
Display Noise
Power on
Check PCBA
Display
AD/B Change
Power/B Change
Abnormal
Inverter/B Change
Flicker
CNT/B Change
Beat Display
Flicker
Check Panel
Panel Change
Beat Display
Shut Down
Display Wave
AD/B Change
Check PCBA
Power/B Change
CNT/B Change
No Backlight
Check Panel
Panel Change
Check Adapter
Adapter Change
Next Step
NG
B
ViewSonic Corporation
TEST
Completed
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Failure Analysis
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
B
Display White
Out
Check PCBA
AD/B Change
Power/B Change
Booting Delay
Check PCBA
Brightness
OSD/B Change
Even
Abnormal
Check PCBA
Power/B Change
Inverter/B Change
Beat Display
No Backlight
Inverter/B Change
Check Panel
Check Adapter
Panel Change
Adapter Change
No signal
AD/B Change
R.G.B
Check PCBA
CNT/B Change
Check Wire
VGA cable
Display
Abnormal
DVI cable
Gray Scale
Display
Abnormal
Check Panel
Next Step
Panel Change
NG
TEST
C
Completed
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Defect Mode
Failure Analysis
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
C
Horizontal
Line Defect
Vertical
Weak Line
Check PCBA
AD/B Change
Check Panel
Panel Change
Horizontal
Weak Line
Vertical
Band Defect
Horizontal
Band Defect
Power Saving
Display
Abnormal
Check PCBA
AD/B Change
AD/B Change
Peculiar Smell
Check PCBA
Power/B Change
Inverter/B Change
Next Step
NG
TEST
Complete
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Defect Mode
Failure Analysis
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
AD/B Change
Power/B Change
Power ON/OFF
No Power
Abnormal
Turn Off
Check PCBA
Check PCBA
CNT/B Change
Inverter/B
OSD/B Change
Abnormal
Check Wire
OSD Cable
Check Wire
AC Power Change
DC Power CNT
Cable Change
Check Adapter
Adapter Change
AD/B Change
LED Display
Abnormal
LED Off
Check PCBA
Power/B Change
Inverter/B
LED Dark
OSD/B Change
LED Abnormal
LED Loss
OSD Cable
Check Wire
DC Power CNT
Cable Change
LED Flicker
Adapter Change
Next Step
NG
TEST
Completed
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Defect Mode
Failure Analysis
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
Abnormal BIOS
&OSD
OSD Key
AD/B Change
Unavailable
CNT/B Change
OSD Can’t
Input
Power/B Change
Check PCB
Inverter/B
OSD Can’t
Read
OSD/B Change
OSD No
D-sub cable
Display
OSD cable
Check Wire
OSD Jiggle
OSD Display
Abnormal
Abnormal
Loudspeaker
VGA cable
DVI cable
Check BIOS
BIOS Update
AD/B Change
Voice Loss
CNT/B Change
Abnormal
Loud
Power/B Change
Check PCBA
Inverter/B Change
L/R
Abnormal
OSD/B Change
Check Wire
No Voice
L/R Same
OSD Cable Change
Check Loudspeaker
Volume
Loudspeaker
Noise
Next Step
Loudspeaker
Change
NG
TEST
Completed
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Defect Mode
Failure Analysis
Repair
Testing
※ “ Panel Change” Should be Performed to Level 3 Repair
Other Abnormal
Display Shut
Display
Check PCBA
Down
AD/B Change
Power/B Change
CNT/B Change
Check Panel
Display Flicker
Check PCBA
((tapping )
Check PCB
Display
Abnormal
TV Function
Display
Abnormal
AD/B Change
CNT/B Change
Check Panel
DVI Signal
Panel Change
Check EDID Code
Check PCBA
Check Wire
Check Controller
Panel Change
AD/B Change
EDID Update
TV /B Change
AV Cable Change
Remote controller
Change
Next Step
NG
TEST
Complete
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Trouble Shooting Analysis
Check the information in this section to see if the problems can be solved before requesting repair.
Note：The consumers are only allowed to solve the problems described as below. Any unauthorized
product modification, or failure to follow instructions supplied with the product will end the
warranty immediately.
z No image
‹
‹
z
No Signal Input
‹
z
z
z
‹
‹
Reset the LCD monitor
Take off extra accessories (such as signal extension cord).
‹
‹
‹
Use OSD Image Menu to adjust H_Position and V_Position.
Check image size setting.
Perform Auto Adjust.
Image is not centered
Size is not appropriate
Use OSD Color Menu to adjust color setting.
Dark area distorted
‹
z
Use OSD Color Menu to adjust color setting.
Color too dark
‹
z
Use OSD Image Menu to adjust H_Position and V_Position.
Check image size setting.
Perform Auto Adjust.
Uneven color
‹
z
Check the signal connection between the computer and LCD monitor.
Perform Auto Adjust.
Distorted image
‹
‹
‹
z
Adjust brightness and contrast by OSD.
Irregular image
‹
‹
z
Adjust brightness and contrast by OSD.
Image too dark
‹
z
Adjust Phase.
Image too bright
‹
z
Check the computer image output resolution and frequency and compare the value with the preset
values (Please refer to [Appendix-Display Mode]).
Fuzzy Image
‹
z
Check the signal connection between the computer and LCD monitor.
“Out of Range”
‹
z
Make sure power button is ON.
Check whether the LCD monitor and computer power cords are plugged and whether there is a
supply of power.
Use OSD Color Menu to adjust color setting.
White color is not white
‹
Use OSD Color Menu to adjust color setting.
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7. Recommended Spare Parts List
RECOMMENDED SPARE PARTS LIST (VE1920wmb-2)
ViewSonic Model Number: VS10866
Serial No. Prefix: QCB
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Accessories:
PC Board Assembly:
Cabinets:
Cables:
Documentation:
Hardware:
Miscellaneous:
Packing Material:
Plastics:
Description
Power Cord
Audio Board (Rev.02)
Audio Control Board (Rev.04)
Power Supply Board (Ver:0F)Lips with Audio
Cover Hinge
Seat Assy Black
Front Panel (Bazel)
Back Cover
Base Assembly
Audio Cable, A150X2,18AWG, 180cm
DVI Cable, S/L, 1.8M, W/2F
Accessory Cable, D-Sub
Flat Cable (FFC L=108.5)
Flat Cable (FFCX816,36)
Safety Label, 120 mmx50 mm
Carton Label 76.2 mmx76.2 mm
CD-ROM (Menu)
SCREW,3,P=0.5 mm,L=4 mm
SCREW,3,P=0.5 mm,L=4 mm
SCREW,M3,P=1.27 mm,L=12 mm
SCREW,M4,P=0.7 mm,L=8 mm
SCREW,M4,P=0.7 mm,L=15 mm
SCREW,4,P=0 mm,L=11.8 mm
Tape, 900 mmx50 mmx0 mm
PE Bag
Foam(Right)
Foam(Left)
Generic Foam Set
Generic Box
Craft Box
Panel Cover (Panel Protector Film)
Rev: 1a
ECR/ECN
ViewSonic P/N
A-00002058
B-00005600
B-00005705
B-00008008
C-00004284
C-00005847
C-00006042
C-00006043
C-00006044
CB-00000544
CB-00002083
CB-00004287
CB-00004288
CB-00005742
DC-00006045
DC-00008035
DC-00008036
HW-00000553
HW-00000553
HW-00000556
HW-00004042
HW-00005884
HW-00006041
M-00000560
P-00000595
P-00006049
P-00006050
P-00001347
P-00002515
P-00008028
PL-00006048
Ref. P/N
32E1818013
35-D005166
35-D005062
27-D007836
40-D004250
40-D008680
40-D010962
40-D008950
40-D008951
32F2818004
32F0000004
32F3018003
32-D004533
32-D005773
77-D010603
77-D011986
76-D011994
42A9930008
42A9930008
42A9990005
42-D000649
42-D001756
42A9940007
7345511002
7841919921
78-D009100
78-D009098
30833
20653
78-D011984
73-D005900
Location
Universal number#
Q'ty
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
16
4
2
1
4
4
0.058
1
1
1
1
1
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. This is to eliminate repeated cross checks of each item between this version and prior versions.
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BOM LIST (VE1920wmb-2)
ViewSonic Model Number: VS10866
Rev: 1a
Serial No. Prefix: QCB
Item
ViewSonic P/N
1
HW-00000553
2
HW-00006041
3
N/A
4
5
6
HW-00004042
B-00005705
CB-00005742
7
N/A
8
N/A
9
10
B-00008008
N/A
11
12
13
N/A
N/A
N/A
14
N/A
15
N/A
16
17
18
N/A
N/A
N/A
19
20
N/A
N/A
21
22
23
24
25
26
HW-00000553
HW-00000556
CB-00004288
B-00005600
C-00006043
C-00006042
27
28
29
HW-00005884
C-00004284
C-00006044
30
31
32
33
N/A
PL-00006048
DC-00006045
HW-00002076
34
N/A
35
36
37
38
39
P-00000595
DC-00000586
M-00000560
N/A
N/A
40
41
N/A
C-00005847
42
43
44
P-00006049
N/A
P-00006050
45
N/A
46
N/A
47
DC-00008035
48
P-00008028
49
DC-00008036
50
N/A
51
N/A
52
53
54
N/A
CB-00000544
CB-00002083
55
56
A-00002058
CB-00004287
Ref. P/N
Description
Location
SCREW, 3, P=0.5 mm, L=4 mm, Pan Head, Phillips Cross Recess, Hama Naka Motogawa/Shin
Yee/Hama Naka Shoukin/Shiho/Shye Ching, Green I
SCREW, 4, P=0 mm, L=11.8 mm, Hexagon Stand Off, Socket, Hama Naka Motogawa/Shiho/Shin
42A9940007
Yee/Shye Ching, Green I
Metal Frame Front, M190A1-L01/A190A2/M190A1-L03, SECC 0.6t, Kunshan Jincheng_Base
41-D000643
Assy/Wai Gin/Jiin Ming, 19"wide, Green I
SCREW, M4, P=0.7 mm, L=8 mm, Round Head, Phillips Cross Recess, plate color Zn,
42-D000649
Screw with Washer, Shye Ching/Hama Naka Motogawa, head D8, Green I
35-D005062 PCBA for , A190A2-A02-H, A190A2-A02-H-S1, 1206-03, Rev.04, USI/ITC, ODM, Green II
32-D005773 FFC, FFCX816, 36 Pins, Tennsure, package AL_Foil, Green I
Cover AD Assy, A190A2, SECC, Jiin Ming/Kunshan Jincheng_Base Assy, Left_Side 4 connector,
41-D007621
Green II
Backlight Unit, a190a2, CLT_BL/Kenmos/Forhouse,
44-D007620
Hign&Low Voltage into the same connector, Green II
Lips With Audio, DAC-19M008 AF, 0F, 5 V/3 A, 13.8 V0.7 A, I TYPE, 7 mA, 1710 V, Delta
27-D007836
Dongguan LIPS, Green II
36X8636401 Driver IC, COG, Scan, HX8636APD400(TSMC), 300Channel, Himax, Green I
ACF, COG, AC-8405Z-23 1.5mmX100M, 100000 mmx1.5 mm, Hitachi Chemical, COG-ACF,
73-C000047
Green I
L3J009XXX8 19" wide PS TN Asahi 0.7mm glass Resin BM (Panel Base)
L3J009X4BI 19" wide PS TN Asahi 0.7mm glass Resin BM+5ms LC (Sheet Base)
Polarizer, CF, Degree 135, 415.84 mmx262.15 mmx0.215 mm, LPT-HL56T-12AGA1SU, M190A1,
74-D000461
Optimax, Green I
Polarizer, TFT, Degree 135, 414 mmx259.7 mmx0.215 mm, LPT-HL56T-12SU, M190A1, Optimax,
74-D000462
Green I
Driver IC, COF, Data, A190A2-A02-H, HX8018-A060CBAK, 6 bit, 432Channel, Himax, Green II
36-D007589
42A9930008
73-D008216
73-D002676
35-D007815
7349951002
42A9930008
42A9990005
32-D004533
35-D005166
40-D008950
40-D010962
42-D001756
40-D004250
40-D008951
77-D001323
73-D005900
77-D010603
7841595111
7841996911
7841919921
7741999141
7345511002
77-D000114
77-D000118
78-D000801
40-D008680
78-D009100
79-D009099
78-D009098
78-D010933
77-D011988
77-D011986
78-D011984
76-D011994
10-D011883
10-D012406
10-D012434
32F2818004
32F0000004
32E1818013
32F3018003
Universal number#
Q'ty
16
4
1
1
1
2
1
1
1
3
0.00168
1
0.08333
1
1
10
ACF, COF, AC-4255U-16, 200000 mmx1.2 mm, Hitachi Chemical, Green II
ACF, PCB, AC-9825R-35, 100000 mmx1.5 mm, Hitachi Chemical, PCB-ACF, Green I
PCBA for , A190A2-A02-H, A190A2-A02-H-X, 1206-05, Rev.02, ITC/USI/WUS_PCBA, ODM,
Green II
Silicone, TORAY/-9187L, 330g
SCREW, 3, P=0.5 mm, L=4 mm, Pan Head, Phillips Cross Recess, Hama Naka Motogawa/Shin
Yee/Hama Naka Shoukin/Shiho/Shye Ching, Green I
SCREW, M3, P=1.27 mm, L=12 mm, Pan Head, Phillips Cross Recess, Green I
FFC, A190A2-H05, 15 Pins, Tennsure/Young Shin, L=108.5, Green I
PCBA for , A190A2-H, A190A2-H-K3, 106-02, Rev.02, USI/ITC, ODM, Green II
Rear Assy, A190A2-H0C, ASSY, Black, Fuking, Green II
Bezel Assy, A190A2-H0C, ABS PA-757-J01, BLACK, Fuking, Dual, VSC, 1st, Green II
SCREW, M4, P=0.7 mm, L=15 mm, Round Head, Phillips Cross Recess, Zn(Black),
Screw with Washer, Hama Naka Motogawa/Shye Ching, Green I
Cover Hinge, A190A2-H05, ABS PA757N, Black(J91A11B5), Fuking, Green I
Stand Assy, A190A2-H0C, ASSY, Black, Cherng Jyieh, Green II
Customer Label for , A170E1-H0G, 15 mmx15 mm, Chang Huang, QC Pass Label_VSC_for China,
Green I
Panel Protector Film, A190A2-H05, XG-536 T=0.1, With_Print, Just Enter, Green II
Safety Label for , A190A2-H0C, 120 mmx50 mm, Chang Huang, VSC_VE1920wmb, Green II
Corner Protector, paper, 50 mmx50 mmx1850 mm, Green II
Separator, (AA), A190E2-H04, 1200 mmx1050 mmx11 mm, Shanghai Zhung Hao/Hua Sun Paper,
ACER, Non Green
Bag, 570 mmx600 mmx0.13 mm, Huang Jyii/Taiwan Hon Chuan/Suzhuo Hon Chuan, Default,
Green I
Module Label, A190E2-H03, 75 mm, 40 mm, Non Green
Tape, A170E1-H0P, 900 mmx50 mmx0 mm, Symbio, OPP
Customer Label for , A170E1-H0G, 180 mmx100 mm, Chang Huang, VSC_on Carton, Green I
Customer Label, A170E1-H0G, 130 mm, 80 mm, Green I
Pallet, N150X6, Wooden, KD-HT, 1200 mmx1000 mmx135 mm, Shanghai Hang Wei/Ming Li/Hua
Sun Paper, Green I
Seat Assy, A170E1-H0P, ASSY, Black, Cherng Jyieh, Green II
Cushion, A190A2-H0C, EPS, White, 464 mmx180 mmx220 mm, Telung, PS_Foam(Right), Green II
0.0022
0.0044
Shipping Package Information for , A190A2-H0C, Viewsonic
Cushion, A190A2-H0C, EPS, White, 464 mmx180 mmx220 mm, Telung, PS_Foam(Left), Green II
1
Warranty Card, A170E1-H0G, 143 mmx210 mm, Yi Ching/Car Tong Kunshan, VSC_VA712 Ver.2,
Green II
SN Label for , A190A2-H0C, 50 mmx25 mm, Chang Huang/Kunshan Hwakuan,
VSC VE1920wmb-2 for China, Green II
Carton Label for , A190A2-H0C, 76.2 mmx76.2 mm, Chang Huang/Kunshan Hwakuan,
VSC VA1920wmb-2, Green II
Carton, A190A2-H0C, 492 mmx186 mmx478 mm, Chen Yi Paper, VSC_VE1920wmb-2 5ms,
Green II
MENU for A190A2-H0C, Complex, 1C, Yi Ching/Car Tong Kunshan, VSC_VE1920wmb-2 CDROM, Green II
Software (BIOS), A190A2, 19A2LS1000, VSC, Checksum(0x8A47), VSC 19W TSUM,
DUAL+AUDIO/Analog+Audio for 5ms Panel, Green II
Software (EDID_D-SUB), A190A2, VSC501EAb0, VSC, Checksum(XX), VSC 19W Analog Port,
Green II
Software (EDID_DVI), A190A2, VSC501EDb0, VSC, Checksum(XX), VSC 19W Digital Port,
Green II
Accessory Cable, Audio, NONE, Black, Pins-Pins, Green I
Accessory Cable, DVI, Black, Jceprocable, DVI-D(M) TO DVI-D(M), S/L, W/2F, Green I
Power Cord, CCC, 300/500V, 0.75mm2, 3C, PC-323+COC-01, L=1830+/-50mm, Black, Linetek,
18AWG, No Bag, Green I
Accessory Cable, D-Sub, BLACK, Jceprocable, A150X2, Green I
ViewSonic Corporation
1
0.4
4
2
1
1
1
1
4
1
1
1
1
1
0.083
0.021
1
0.021
0.058
1
1
0.021
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
41
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VE1920wmb-2
8. Exploded Diagram and Exploded Parts List
EXPLODED PARTS LIST (VE1920wmb-2)
ViewSonic Model Number: VS10866
Rev: 1a
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ViewSonic P/N
N/A
E-00005747
N/A
HW-00000553
B-00006039
B-00005705
HW-00000553
N/A
C-00006042
C-00006043
HW-00004042
C-00006044
C-00004284
C-00005847
Reference P/N
44-D003904
MJ0A10AK01
41-D004053
42A9930008
27-D003247
35-D005062
42A9930008
41-D002610
40-D010962
40-D008950
42-D000649
40-D008951
40-D004250
40-D008680
Description
BACKLIGHT ASSY
PANEL ASSY
BACKLIGHT FRONT COVER
SCREW M3*4L
POWER PCB ASSY
AD PCB ASSY
SCREW M3*4L
AD COVER
BEZEL ASSY
REAR ASSY
SCREW D3*8L
STAND ASSY
COVER HINGE
SEAT ASSY
Q'ty
1
1
1
2
1
1
7
1
1
1
4
1
1
1
ViewSonic Corporation
Model
Title
Date
ViewSonic Corporation
42
Confidential - Do Not Copy
VE1920wmb-2
Exploded chart
Rev:
PACKING PART LIST ( VE1920wmb-2 )
ViewSonic Model Number: VS10866
Rev: 1a
Item
1
2
3
4
5
6
7
8
9
10
11
12
ViewSonic P/N
N/A
P-00000595
P-00006049
P-00006050
N/A
N/A
CB-00004287
CB-00000544
N/A
N/A
N/A
N/A
Ref. P/N
VE1920wmb
7841919921
78-D009100
78-D009098
Different region (refer to BOM)
Different region (refer to BOM)
32F3018003
32F2818004
N/A
Different region (refer to BOM)
Different region (refer to BOM)
Different region (refer to BOM)
Location
LCD Monitor
PE Foam Bag
PS Foam (Right)
PS Foam (Left)
Carton
Power Cord
Monitor Cable
Audio Cable
DVI Cable
Menu (Quick Setup)
Menu (CD-ROM)
Warranty Registration Card
Q'ty
1
1
1
1
1
1
1
1
1
1
1
1
ViewSonic Corporation
Model
Title
Date
ViewSonic Corporation
43
Confidential - Do Not Copy
VE1920wmb-2
Packing Exploded chart
Rev:
9. Block Diagram
Speaker
OSD Key Pad / Audio Out
3.3V
5V
DVI-D
Digital Video
Main Board
12V
D-sub
Analog Video
Signal
LDO
DC-5V
AC Power
LCD Module
DC-12V
LIPS
Backlight
Audio In
ViewSonic Corporation
44
Confidential - Do Not Copy
VE1920wmb-2
10. Schematic Diagrams
B3
B6
DSUB_DET
SOG
DDCA_DAT
DDCA_CLK
RIN
GNDR
GIN
GNDG
BIN
GNDB
HSYNC
VSYNC
DSUB_DET
SOG
VGADDCA_DAT
V5A
DDCA_CLK
RIN
VGA_5V
GNDR
GIN
GNDG
BIN
GNDB
V5A_ESD
HSYNC
VSYNC
VGA_5V
V5A_ESD
BR2N
BR2P
BR1N
BR1P
BR0N
BR0P
DSUB_DET
SOG
DDCA_DAT
DDCA_CLK
RIN
GNDR
GIN
GNDG
BIN
GNDB
HSYNC
VSYNC
BG2N
BG2P
BG1N
BG1P
BG0N
BG0P
B4
DDCD_CLK
DDCD_DAT
R+
RG+
GB+
BCLK+
CLK-
V5A_ESD
DDCD_CLK
DDCD_DAT
V5A
R+
RDVI
G+
GDVI_5V
B+
BCLK+
CLK-
DVI_5V
B1
BB2N
BB2P
BB1N
BB1P
BB0N
BB0P
DDCD_CLK
DDCD_DAT
R+
RG+
GB+
BCLK+
CLK-
FR2N
FR2P
FR1N
FR1P
FR0N
FR0P
FG2N
FG2P
FG1N
FG1P
FG0N
FG0P
OSD
LED_OR
LED_GL
TURBO
MENU
LEFT
RIGHT
AUTO
POWER
LED_OR
LED_GL
TURBO
MENU
LEFT
RIGHT
AUTO
POWER
V33C
AUDIORAUDIOR+
AUDIOLAUDIOL+
LED_OR
LED_GL
TURBO
MENU
LEFT
RIGHT
AUTO
POWER
AUDIO_ON
INV_ON/OFF
DCDC_ON/OFF
PANEL_ON/OFF
VCM_PWM
VOL_ADJ
INV_ADJ
AUD_DET
AUDIORAUDIOR+
AUDIOLAUDIOL+
AUDIO_ON
INV_ON/OFF
DCDC_ON/OFF
PANEL_ON/OFF
VCM_PWM
VOL_ADJ
INV_ADJ
AUD_DET
DVI_5V
SCALER
FB2N
FB2P
FB1N
FB1P
FB0N
FB0P
FCKN
FCKP
FSTH
BCKN
BCKP
BSTH
STB
POL
CPV
STV
OE
B8
BR2N
BR2P
BR1N
BR1P
BR0N
BR0P
PANEL_INTERFACE
BR2N
BR2P
BR1N
BR1P
BR0N
BR0P
BG2N
BG2P
BG1N
BG1P
BG0N
BG0P
BG2N
BG2P
BG1N
BG1P
BG0N
BG0P
BB2N
BB2P
BB1N
BB1P
BB0N
BB0P
BB2N
BB2P
BB1N
BB1P
BB0N
BB0P
FR2N
FR2P
FR1N
FR1P
FR0N
FR0P
FR2N
FR2P
FR1N
FR1P
FR0N
FR0P
FG2N
FG2P
FG1N
FG1P
FG0N
FG0P
FG2N
FG2P
FG1N
FG1P
FG0N
FG0P
FB2N
FB2P
FB1N
FB1P
FB0N
FB0P
FB2N
FB2P
FB1N
FB1P
FB0N
FB0P
FCKN
FCKP
FSTH
FCKN
FCKP
FSTH
BCKN
BCKP
BSTH
BCKN
BCKP
BSTH
STB
POL
STB
POL
CPV
STV
OE
CPV
STV
OE
B5
VCTRL
B2
V5A
INVERTER I/F
AUDIOL-
DVI_5V
AUDIOR+
Vref
Vref
VGA_5V
AUDIOR-
VOL_ADJ
V12A
V5A
AUDIOL+
V12A
V18C
V33C
Vref
V5A
GVOFF
GVOFF
GVOFF
VCM_PWM
PANEL_ON/OFF
DCDC_ON/OFF
V12A
VOL_ADJ
POWER
AUDIO_ON
LED_GL
V18C
AUD_DET
V33C
AUD_DET
VCTRL
V33P
V33P
V33P
V5A
VCM_PWM
PANEL_ON/OFF
DCDC_ON/OFF
V12A
V33P
V5A
V33C
V18C
V5A
V33C
V12A
INV_ON/OFF
INV_ADJ
V12A
INV_ON/OFF
INV_ADJ
ViewSonic Corporation
Model
Title
Date
ViewSonic Corporation
45
Confidential - Do Not Copy
VE1920wmb-2
SYSTEM DIAGRAM
Rev:
VCC33
VDPP
L10
VDDC
12
97
117
68
WP
WP
0603/100n/25V/7
C80
1206/10u/16V/X/PbF
TSUM57AK
U2
C90
8
7
3
4
GND
VDD
HOLD#
WP#
VSS
SDO
CE#
SCK
SDI
2
1
6
5
70
71
72
73
R116
0603/10K/5%
32
C94
0603/22p/50V/N
Y1
14.31818MHz
C93
0603/22p/50V/N
33
GND
98
99
100
101
105
106
FG0N
FG0P
FG1N
FG1P
FG2N
FG2P
BA1P/NC/BA2
BA1N/NC/BA3
BA2P/NC/BA4
BA2N/NC/BA5
BA3P/NC/BA6
BA3N/NC/BA7
89
90
91
92
93
94
FR0N
FR0P
FR1N
FR1P
FR2N
FR2P
RB1P/NC/RB2
RB1N/NC/RB3
RB2P/NC/RB4
RB2N/NC/RB5
RB3P/NC/RB6
RB3N/NC/RB7
9
10
15
16
17
18
BB0N
BB0P
BB1N
BB1P
BB2N
BB2P
GB1P/NC/GB2
GB1N/NC/GB3
GB2P/NC/GB4
GB2N/NC/GB5
GB3P/NC/GB6
GB3N/NC/GB7
2
3
5
6
7
8
BG0N
BG0P
BG1N
BG1P
BG2N
BG2P
118
119
120
121
122
123
124
125
126
127
128
1
FCKP
FCKN
BCKP
BCKN
CLKAP/LVB3P/LHSYNC
CLKAN/LVB3M/LVSYNC
CLKBP/LVBCKP/LCK_ODD
CLKBN/LVBCKM/LDE
NC/LVB2P/NC
NC/LVB2M/NC
BB1P/LVB1P/BB2
BB1N/LVB1M/BB3
BB2P/LVB0P/BB4
BB2N/LVB0M/BB5
BB3P/NC/BB6
BB3N/NC/BB7
SDO
SCZ
SCK
SDI
Pm25LV512
19
GA1P/NC/GA2
GA1N/NC/GA3
GA2P/NC/GA4
GA2N/NC/GA5
GA3P/LVA3P/GA6
GA3N/LVA3M/GA7
REFP
REFM
RST
ESP
OSP
GPO0
GPO1
GPO2
GPO3
GPO4
GPO5
GPO6
XIN
XOUT
GND
GPIO_P22
GPIO_P23
GPIO_P03
VCC33
R0603/OPEN
R0603/OPEN
102
104
GPIO_P16/PWM2
GPIO_P15/PWM0
PWM2/GPIO_P24
GPIO_P27/PWM1
MODE[0]
MODE[1]
GPIO_P12
PWM1/GPIO_P25
R114
0603/10K/5%
R115
0603/10K/5%
R118
R119
RSTN
GPIO_P00/SAR1
GPIO_P01/SAR2
GPIO_P02/SAR3
GPIO_P06
GPIO_P07
PWM0/GPIO_P26
GPIO_P13
GPIO_P14
GND
C58
0603/100n/25V/7
C59
0603/100n/25V/7
C60
0603/100n/25V/7
FB0N
FB0P
FB1N
FB1P
FB2N
FB2P
FB0N
FB0P
FB1N
FB1P
FB2N
FB2P
1
POL
R103
R104
20
21
INV_ON/OFF
INV_ADJ
22
23
24
25
27
28
29
30
31
SAR1 R110
SAR2 R117
R121
1
TP
C75
0603/100n/25V/7
Close to respective power Pins
VPLL
L13
VPLL1
1
2
1
VDDC
TP
VCC18
VDDC1
L17
C76
1206/10u/16V/X/PbF
1
V18C
C77
0603/100n/25V/7
2
1
C84
1206/4.7u/16V/Y
Close to respective power Pins
GND
1
C78
1206/10u/16V/X/PbF
C86
0603/100n/25V/7
C87
0603/100n/25V/7
GND
TP
C79
0603/100n/25V/7
V12A
V5A
GND
GND
R120
MENU
LEFT
RIGHT
Close to respective power Pins
V5A
DVI
0603/0R/5%/open
R214
0603/10K/5%
DVI_5V
C88 0603/100n/25V/7
DSUB
LED_GL
LED_OR
VOL_ADJ
0603/100R/5%
1
VCC33
AUD_DET
AUTO
POWER
GND
0603/100R/5%
0603/100R/5%
0603/100R/5%
AVDD1
2
C85
0603/100n/25V/7
TP
Close to respective power Pins
AVDD
L14
LED_GL
LED_OR
R105
VMPLL1
HCB2012KF-420T40
2
GND
BSTH
VCC33 VCC33
FSTH
GVOFF
STB
STV
CPV
OE
VCM_PWM
PANEL_ON/OFF
C67
0603/100n/25V/7
Close to respective power Pins
C74
1206/10u/16V/X/PbF
BR0N
BR0P
BR1N
BR1P
BR2N
BR2P
0603/100R/5%
0603/100R/5%
TP
VMPLL
L12
1
FCKP
FCKN
BCKP
BCKN
POL
AUDIO_ON
C66
0603/100n/25V/7
GND
BG0N
BG0P
BG1N
BG1P
BG2N
BG2P
75
74
26
1
C65
1206/10u/16V/X/PbF
BB0N
BB0P
BB1N
BB1P
BB2N
BB2P
TP
VDVI1
2
TP
FR0N
FR0P
FR1N
FR1P
FR2N
FR2P
BSTH
FSTH
GVOFF
STB
STV
CPV
GPO51
OE
VDVI
L11
1
FG0N
FG0P
FG1N
FG1P
FG2N
FG2P
BR0N
BR0P
BR1N
BR1P
BR2N
BR2P
80
81
88
87
86
85
84
83
82
35
69
78
79
Close to respective power Pins
R112
V5A
61
C57
0603/100n/25V/7
TP
GND
0603/10K/5%/OPEN
62
C91
0603/100n/25V/7
C56
0603/100n/25V/7
VCTRL
107
108
109
110
111
112
113
114
R210
VCC33
11
0603/30K/5%
VDDC
VDDC
VDDC
VDD_OTP
60
14
67
95
103
115
VDDP
VDDP
VDDP
VDDP
VDDP
52
AVDD_PLL
REXT
VCTRL
NC/LVACKP/NC
NC/LVACKM/NC
RA1P/LVA2P/RA2
RA1N/LVA2M/RA3
RA2P/LVA1P/RA4
RA2N/LVA1M/RA5
RA3P/LVA0P/RA6
RA3N/LVA0M/RA7
R113
0603/10K/5%
R124 0603/390R/1%
51
AVDD
1
GND
R209
DDCD_DAT
DDCD_CLK
RX2P
RX2N
RX1P
RX1N
RX0P
RX0N
RXCKP
RXCKN
DDCD_SDA
DDCD_SCL
2
C55
1206/10u/16V/X/PbF
OPEN/R0603
R+
39
R40
G+
42
G43
B+
45
B46
CLK+ 48
CLK- 49
DDCD_DAT 36
DDCD_CLK 37
R+
RG+
GB+
BCLK+
CLK-
RIN0P
RIN0N
GIN0P
GIN0N
SOGIN0
BIN0P
BIN0N
HSYNC0
VSYNC0
DDCA_SDA/RS232_Tx
DDCA_SCL/RS232_Rx
C92
0603/100n/25V/7
R122
0603/10K/5%/open
DDCA_DAT
DDCA_CLK
59
58
56
55
57
54
53
63
64
65
66
AVDD_ADC
RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSYNC
VSYNC
AVDD_MPLL
AVDD_MPLL
RIN
GNDR
GIN
GNDG
SOG
BIN
GNDB
HSYNC
VSYNC
DDCA_DAT
DDCA_CLK
GND
AVDD_DVI
AVDD_DVI
U1
4
34
44
50
0603/100n/25V/7
VDPP1
1
V33C
DSUB
AVDD VDPP
R111
0603/10K/5%
VMPLL VPLL
C68
0603/20K/1%/OPEN
R79
DVI
VDVI
0603/0R/5%/open
R213
GND
DSUB_DET
VCC33
TURBO
GND
7
WP
A1
SCL
A2
SDA
GND
R102
1
0603/4.7K/0.1%/RoHS
2
Q7
MMBT3904-F
DCDC_ON/OFF
C89
0603/100n/25V/7
2
need to modify, the SAR is
6 bits and the max voltage
is 1.8V
DCDC_ON/OFF
3
13
38
41
47
96
116
R1000603/100R/5%
R101 0603/100R/5%
C81
0603/100n/25V/7
U7
AT24C16AN-10SU-2.7/RoHS
8 VCC
A0 1
R109
0603/10K/5%
77
76
R106
0603/10K/5%
R107
0603/10K/5%
GND
GND
GND
GND
GND
GND
DDCROM_SCL
DDCROM_SDA
R108
0603/10K/5%
VCC33
6
5
3
4
GND
GND
U5
VCC33
PIN
VOLTAGE
VCC33
4
RIGHT
1.77V
NC
C152
C150
0.47V
GND
SAR1
R128
0603/23.2K/1%/OPEN
LEFT
1.77V
TP
SAR11
MENU
1.24V
R200
0603/10M/5%/RoHS/OPEN
TURBO
R127
0603/20K/1%/OPEN
5
0805/10u/6.3V/5/open
GND
SAR2
LEFT
1
AUTO
1
1.24V
SAR21
0.47V
R67
0603/12.1K/1%/OPEN
MENU
R137
0603/20K/1%/OPEN
C70
0603/10n/25V/7/RoHS
R138
0603/23.2K/1%/OPEN
CD
3
2
OUT
1
GND
Vref
VCC33
RN5VD40AA/RoHS
R212
0603/1K/5%
RIGHT
GND
TP
0805/10u/6.3V/5/open
POWER
VSS
VDD
R201
0603/10M/5%/RoHS/OPEN
R134
TURBO
0603/3.3K/1%/OPEN
R139
POWER
0603/12.1K/1%/OPEN
R140
AUTO
0603/3.3K/1%/OPEN
WP
ViewSonic Corporation
GND
RIGHT
+LEFT
+POWER
SR1(1.77) SR2(0.93)
GND
Model
Title
Date
ViewSonic Corporation
46
Confidential - Do Not Copy
VE1920wmb-2
SCALER
Rev:
0603/1K/5%/RoHS V33C
R12
V33C
V33C
R9
V5A
0603/10K/5%/RoHS
3
1
2
1
0603/4.7K/5%/RoHS
R14
TP
TP
LP2
FBMJ2125HS420/PbF
LP3
FBMJ2125HS420/PbF
LP4
FBMJ2125HS420/PbF
INV_ON/OFF1
INV_ADJ
0603/4.7K/5%/RoHS
3
Q1
2N7002/RoHS
0603/1u/10V/Y/open
V5A1
VIN_12V1
VIN_12V
R13
C7
1
C8
0603/0.1u/25V/open
Q2
2N7002/RoHS
R10
1
2
GND
INV_ON/OFF 1
TP
INV_ADJ
INV_ON/OFF
1
GND
[GND_INV]
INV_ADJ1
0603/4.7K/5%/RoHS
TP
R11
0603/10K/5%/OPEN
V5A
LP1
GND
V5A
FBMJ2125HS420/PbF
CP3
CP1 1206/10u/16V/5/RoHS
UWT1E101MCL1GS/RoHS
1210/4.7u/25V/5/RoHS
GND
R181
0603/10K/5%/RoHS
VOL
MUTE
AUDIORAUDIOR+
AUDIOLAUDIOL+
CN4
Header2X8FR2.54
0603/0R/5%/RoHS/OPEN
AUD_Shutdown
R22
R182
MUTE
LP5
FBMJ2125HS420/PbF
2
1
3216FF/1206/3A/RoHS
TP0610K/PbF
V12A
1
V12A
Q16
LV470M025E055R
CP4
3
FP1
2
VIN_12V
Q18
2N7002/RoHS
3
AUD_DET
1
GND
2
GND
GND_INV
AUD_DET
V5A
0603/10K/5%/RoHS
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1
LED_GL
2
CP2
+
CP5
CP6
1210/4.7u/25V/5/RoHS
1210/4.7u/25V/5/RoHS
C161
0603/100n/25V/Y/RoHS
R183
0603/1K/5%/RoHS
GND
GND
GND
GND
AUD_Shutdown
V5A
R19
0603/1K/5%/RoHS
1
1
C4
TP0610K/PbF
Q3
3
R18
Q5
1
2N7002/RoHS
2
VOL_ADJ
0603/10K/5%/RoHS
R17
OPEN/0603
VOL
C6
1206/10u/16V/5/RoHS
1
Q4
2N7002/RoHS
3
OPEN/0603
3
R15
0603/10K/5%/RoHS
VOL1
2
VOL_ADJ1
V5A
Low: MUTE OFF
1
AUDIO_ON
2
V5A
C3
0603/100n/25V/Y/RoHS
C5
0603/100n/25V/7/RoHS
R16
0603/1K/5%/RoHS
GND
GND
GND
MUTE
R20
GND
0603/0R/5%/RoHS/OPEN
ViewSonic Corporation
Model
Title
Date
ViewSonic Corporation
47
Confidential - Do Not Copy
VE1920wmb-2
INVERTER INTERFACE
Rev:
V18C
D7
BAV70W/open
V18C
Q8
3
V33C1
B
GND
4
E
C
2
1
1
C160
0805/4.7u/16V/Y
H2907AS
R203
0603/2K/1%
2
TP
C42
1206/22u/16V/Y/RoHS
Vref
1
B240A-F
LM1117MPX-3.3/RoHS
2
4
V33C
VOUT
VOUT
C44
C43
0603/100n/25V/7/RoHS
1206/22u/16V/Y/RoHS
V18V1
D35
1N4148WS-F
V33C
(SCALER VCC)
GND
1
VIN
1
U4
3
GND
L18
V5A
FBMJ2125HS420/PbF
D9
1
2
TP
3
2
0603/0R/5%/open
DVI_5V
VGA_5V
1 0603/0R/5%/open
R1 R5
VCTRL
R202
0603/51R/1%
R204
C45
0603/100n/25V/7/RoHS
0603/100R/1%
Heat-Sink
GND
(POWER FOR SCALER)
L9
U6
FBMJ2125HS420/PbF
3
VIN
LM1117MPX-3.3/RoHS
2
4
V33P
VOUT
VOUT
V33P
(Panel VCC)
1
GND
V5A
1
TP
V33P1
C50
1206/22u/16V/Y/RoHS
C51
0603/100n/25V/7/RoHS
C52
1206/22u/16V/Y/RoHS
C53
0603/100n/25V/7/RoHS
GND
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Model
Title
Date
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POWER
Rev:
R35
DDCA_DAT
0603/0R/5%/OPEN
11
1
6
2
7
3
8
4
9
5
10
12
13
14
15
R78
R30
R29
0603/75R/1% 0603/75R/1% 0603/75R/1%
R21
0603/56R/1%
C9
0603/47n/16V/7/RoHS
R34
0603/56R/1%
C10
0603/47n/16V/7/RoHS
R23
0603/56R/1%
C11
0603/47n/16V/7/RoHS
R24
0603/470R/1%
C15
0603/1n/16V/7
RIN
GIN
BIN
SOG
CN7
89263-6762
R25
D1
1
R144
0603/0R/5%/OPEN
D2
D24
1
BAV99W/RoHS
1
D25
BAV99W/RoHS
C157
0603/100n/25V/X/RoHS
DDCA_CLK
L20
2
HSI
GND
2
C159
0603/100n/25V/X/RoHS
0603/0R/5%/RoHS
R57
R55
C124
0603/47n/16V/7/RoHS
R27
0603/100R/1%
C125
0603/47n/16V/7/RoHS
GNDR
GNDG
GNDB
0603/1K/1%/RoHS
HSYNC
C128
C126
0603/33p/50V/N/RoHS 0603/33p/50V/N/RoHS/open
0603/2.2K/5%/RoHS
1
0603/100R/1%
V5A_ESD
C158
0603/100n/25V/X/RoHS
D32
UDZSF-5.6B/PbF
R26
GND
V5A_ESD
2
GND
0603/47n/16V/7/RoHS
D5
BAV99W/RoHS
2
0603/10p/varistor/OPEN
0603/10p/varistor/OPEN
C123
3
3
3
GND
0603/100R/1%
GND
0603/0R/5%/RoHS
D33
UDZSF-5.6B/PbF
GND
R129
1
0603/2.2K/5%/RoHS
GND
GND
R64
0603/100R/5%/RoHS
R131
0603/100R/5%/RoHS
R54
GND
0603/1K/1%/RoHS
VSYNC
C127
0603/33p/50V/N/RoHS/open
C100
R66
2
VSI
0603/220p/50V/N
GNDGND
GND
HSYNC1 TP
1
HSYNC
VSYNC1 TP
1
VSYNC
DDCA_CLK
DDCA_DAT
DSUB_DET
D6
C129
0603/100n/25V/X/RoHS
D30
BZT52-C5V6S/RoHS
3
0603220KV05T/RoHS
V5A
D31
BAV70W/RoHS
2
D29
0603220KV05T/RoHS
1
D10
0603220KV05T/RoHS
V5A
1
L8
R133
BK1608LL121/PbF 0603/10R/5%/RoHS
2VGA_5V
VGA_5V
U15
1
2
3
4
GND
R136
NC
VCC 8
VGA_5V
NC
VCLK 7
NC
SCL 6
GND
SDA 5
AT24C02-10TU-1.8/RoHS
GND
0603/3.9K/5%/RoHS
R68
0603/10K/5%/RoHS
R135
0603/10K/5%/RoHS
C23
0603/100n/25V/7/RoHS
GND
R60
GND
0603/47K/5%/RoHS
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Model
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VGA
Rev:
V5A_ESD
CON1
DDCD_DAT
R39
R37
0603/0R/5%/RoHS
R38
0603/0R/5%/RoHS
2 L6
1
DVI_5V
3
0603/100n/25V/7 0603/100n/25V/7 0603/100n/25V/7 0603/100n/25V/7
D17
UDZSF-5.6B/RoHS/OPEN
GND
3
3
D4
BAV99W/RoHS BAV99W/RoHSBAV99W/RoHS
1
1
1
BAV99W/RoHS
1
C35
2
C34
2
C33
2
C32
2
2
C31
3
BAV99W/RoHS
1
2
2
C30
2
3
BAV99W/RoHS
1
1
2
BAV99W/RoHS
1
C29
GND
B+
0603/10R/5%/RoHS
BR42
0603/10R/5%/RoHS
G+
R43
0603/10R/5%/RoHS
GR44
0603/10R/5%/RoHS
R+
R45
0603/10R/5%/RoHS
RR46
0603/10R/5%/RoHS
CLK+
0603/10R/5%/RoHS
D20
D21
D22
D23
D3 R47
CLK-
3
3
3
C28
V5A_ESD
C27
1206/10u/16V/5/RoHS
D19
GND
3
R41
2DS-0342-001
BAV99W/RoHS
1
AT24C02-10TU-1.8/RoHS
0603/10R/5%/RoHS
D18
2
2
C26
BAV70W
C25
0603/100n/25V/Y/RoHS
R50
R51
D15
U10
0603/3.9K/5%/RoHS
0603/100n/25V/Y/RoHS
UDZSF-5.6B/PbF
R48
0603/10K/5%/RoHS
1 NC
VCC 8
R49
0603/47K/5%/RoHS
0603/10K/5%/RoHS
2 NC
7
VCLK
3 NC
6
SCL
4 GND
SDA 5
UDZSF-5.6B/PbF
R40
D16
1
D14
UDZSF-5.6B/PbF
C162
C163
1
V5A
D13
0603/100p/50V/N
0603/100p/50V/N
L5
V5A 0603/0R/5%
DVI_5V
V5A
0603/10K/5%/RoHS
GND
DDCD_DAT
BK1608LL121/RoHS
2
DAT0+
DAT0DAT1+
DAT1DAT2+
DAT2DAT3+
DAT3DAT4+
DAT4DAT5+
DAT5clk+
clk-
18
17
10
9
2
1
13
12
5
4
21
20
23
24
DDCD_CLK
1
1/3shield
2/4shield
0/5shield
clk shield
11
3
19
22
DDCD_CLK
DDCD_DAT
2
25
26
27
29
28
8
15
6
7
14
16
DDCD_CLK
1
R
G
B
RGB GND
HSYNC
VSYNC
SYNC GND
DDC SCL
DDC SDA
+5V
HPD
V5A_ESD
0603/100n/25V/7 0603/100n/25V/7 0603/100n/25V/7 0603/100n/25V/7
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GND
Model
Title
Date
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DVI
Rev:
5
6
7
8
5
6
7
8
4
3
2
1
RP46
0603*4/10K/5%/RoHS
4
3
2
1
V33C
RP47
0603*4/10K/5%/RoHS
Bead Array LP8,LP9,LP11=>modified RoHs
MENU
LEFT
RIGHT
TURBO
AUTO
LED_O
LP6 1
2
3
4
LP7 1
2
3
4
LED_G
POWER
CN3
8 BK32164M121
7
6
5
8 BK32164M121
7
6
5
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
L1
AUDIOR-
1
2
MPZ1608S221/RoHS
AUDIOR+
CP7
CP8
0603*4/100n/25V/RoHS 0603*4/100n/25V/RoHS
V33C
R62
0603/10K/5%/RoHS
5
6
7
8
R36
0603/1K/5%/RoHS/OPEN
R7
5
6
7
8
V33C
4
3
2
1
4
3
2
1
L2
V33C
AUDIOL-
1
2
MPZ1608S221/RoHS
HEADER 10_2/RoHS
L3
1
2
MPZ1608S221/RoHS
GND
3
2
L4
1
TP0610K/PbF
Q12
Q13
AUDIOL+
1
1
2
MPZ1608S221/RoHS
LED_OR
2
3
2N7002/RoHS/OPEN
0603/0R/5%/RoHS
C2
0603/100n/25V/Y/RoHS/OPEN
R3
0603/249R/1%/RoHS
GND
GND
GND
LED_O
V33C
V33C
R2
0603/1K/5%/RoHS/OPEN
3
1
3
TP0610K/PbF
Q14
R8
Q15
2N7002/RoHS/OPEN
0603/0R/5%/RoHS
1
LED_GL
2
2
R63
0603/10K/5%/RoHS
R4
0603/249R/1%/RoHS
C1
0603/100n/25V/Y/RoHS/OPEN
ViewSonic Corporation
LED_G
GND
GND
Model
Title
Date
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OSD
Rev:
VCC
STV
CPV
FSTH
FB2P
FB2N
FB1P
FB1N
FB0P
FB0N
OE
STB
BB2P
BB2N
BB1P
BB1N
BB0P
BB0N
FSTH
BG2P
BG2N
BG1P
BG1N
BG0P
BG0N
FG2P
FG2N
FG1P
FG1N
FG0P
FG0N
POL
BCKP
BCKN
FCKP
FCKN
PANEL_ON/OFF
STB
POL
BR2P
BR2N
BR1P
BR1N
BR0P
BR0N
STB
POL
FR2P
FR2N
FR1P
FR1N
FR0P
FR0N
DCDC_ON/OFF
V33P
OE
CPV
STV
GND
VCM_PWM
BSTH
BSTH
OE
CPV
STV
V5A
GND
V5A
GVOFF
VCM_PWM
DCDC_ON/OFF
PANEL_ON/OFF
GVOFF
VCM_PWM
DCDC_ON/OFF
PANEL_ON/OFF
VCC
V33P
GVOFF
V12A
GND
GND
V12A
FSTH
BSTH
GND
S Board
X Board
RA N/P -->
BA P/N
GA N/P -->
GA P/N
BA N/P -->
RA P/N
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Title
PANEL INTERFACE
Date
Rev:
11. PCB Layout Diagrams
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VE1920wmb-2
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* Reader’s Response*
Dear Readers:
Thank you in advance for your feedback on our Service Manual, which allows continuous improvement
of our products. We would appreciate your completion of the Assessment Matrix below, for return to
ViewSonic Corporation.
Assessment
A. What do you think about the content of this Service Manual?
Unit
Excellent
Good
Fair
Bad
1. Precautions and Safety Notices
2. Specification
3. Front Panel Function Control Description
4. 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 Diagrams
B. Are you satisfied with this Service Manual?
Item
Excellent
Good
Fair
Bad
1. Service Manual Content
2. Service Manual Layout
3. The form and listing
C. Do you have any other opinions or suggestions regarding this service manual?
Reader’s basic dada:
Name:
Title:
Company:
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
([email protected])
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VE1920wmb-2