ViewSonic VS11307 Servise Manual

ViewSonic VX1935wm-1

Model No. VS11307

19” Color TFT LCD Display

(VX1935wm-1_SM Rev. 1a Sep. 2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

Service Manual

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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 ECR Number Description of Changes Editor

1a 9/18/2006 Initial Release Jamie Chang

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TABLE OF CONTENTS

1. Precautions and Safety Notices 1

2. Specification 4

3. Front Panel Function Control Description 8

4. Circuit Description 13

5. Adjustment Procedure 14

6. Troubleshooting Flow Chart 32

7. Recommended Spare Parts List 34

8. Exploded Diagram and Exploded Parts List 37

9. Block Diagram 40

10. Schematic Diagrams 41

11. PCB Layout Diagrams 51

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1. Precautions and Safety Notices

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) Disconnect the power plug from AC outlet if the product is not used for a long period of

time.

(5) If smoke, abnormal noise, or strange odor is present, immediately switch the LCD

display off.

(6) Do not touch the LCD panel surface with sharp or hard objects.

(7) Do not place heavy objects on the LCD display, video cable, or power cord.

(8) Do not use abrasive cleaners, waxes or solvents for your cleaning.

(9) Do not operate the product under the following conditions:

- Extremely hot, cold or humid environment.

- Areas susceptible to excessive dust and dirt.

- Near any appliance generating a strong magnetic field.

- Place 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. Power Supply Requirements

The external AC power operating range shall be from 90 to 264Vac

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5. LCD Module Handling Precautions

5.1. Handling Precautions

(1) Since front polarizer is easily damaged, pay attention not to scratch it.

(2) Be sure to turn off power supply when inserting or disconnecting from input

connector.

(3) Wipe off water drop 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 insure

human earth when handling.

(7) Do not open nor modify the Module Assembly.

(8) Do not press the reflector sheet at the back of the module to any directions.

(9) In case if a Module has to be put back into the packing container slot after once it was

taken out from 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 nor

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 nor bend the TFT Module even momentary. At designing the enclosure, it
should be taken into consideration that no bending/twisting forces are applied to the
TFT Module from outside. Otherwise the TFT Module may be damaged.

(12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please

follow local ordinances or regulations for disposal.

(13) Small amount of materials having no flammability grade is used in the LCD module.

The LCD module should be supplied by power complied with requirements of Limited
Power Source, or be applied exemption.

(14) The LCD module is designed so that the CFL in it is supplied by Limited Current

Circuit.

Do not connect the CFL in Hazardous Voltage Circuit.

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5.2 Handling and Placing Methods
Correct Methods: Incorrect Methods:

1.Take out the monitor with cushions 1.Taking out the monitor by grasping the LCD

panel. That may cause ”Mura”

2.Only touch the metal frame of the LCD panel

or the front cover of the monitor. Do not
touch the surface of the polarizer.

2.Surface of the LCD panel is pressed by
fingers and that may cause ”Mura”.

3.Place the monitor on a clean and soft foam
pad.

3.Placing the monitor on foreign objects. That
could scratch the surface of the panel or
cause “Mura”.

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2. Specification

FEATURES VX1935

Size 19 " wide
Luminance (Typ)

300 cd/㎡

Contrast Ratio (Typ) *1 700:1
Colors 16.2 M (6 bits + 2 bits FRC)
Response Time *1 5 ms (on/off)
Viewing Angle (H/V) 150 ° / 135 °@ CR>10

TFTLCD PANEL
1st
HSD
HSD190MGW1-A

Recommend resolution 1440x900@60Hz
Analog Yes (75ohms, 0.7/1.0 Vp-p)

Input Signal

Digital Yes
Separate Sync Yes
Composite Sync No

Sync
Compatibility

Sync on Green No
PC Yes
Power Mac Yes

Compatibility

TV Box (NextVision 6) Yes

Power Voltage AC 100-240V, 50/60Hz Yes

On Mode(Max) ≦ 36 W (Energy Star Ver4.0 Tier2)/ Power

Consumption

Off Mode (Max) ≦1 W

Audio 1.5W / THD 0.5% (Max) Yes

Tilt ( 20 ° - -5 °) Yes
Swivel No
Pivot No

Ergonomics

Height Adjust No

OSD Control [ 1 ] [ 2 ] [ ][▼] [▲] Yes

Physical (W x H x D) 450 x 434 x 210mm

Dimension

Package (W x H x D) 545*515*162mm
Physical (Net Weight) 5.6 Kg / 12.3 lbs

Weight

Package (Gross Weight) 6.6 Kg / 14.5 lbs
Temperature (℉/℃) 32℉-104℉ / 0℃-40℃

Operating
Condition

Humidity (%) 20 % - 80 %
Temperature (℉/℃) -4℉-140℉ / -20℃-60℃

Storage Condition

Humidity (%) 10% - 90 %

Regulation

CB ; MPR II ; UL ; CUL ; FCC-B (ICES) ; TUV-S IRAM ; NOM ;
Energy Star ; CE ; NEMKO ERGO ; GOST-R ; HYGIENIC (20
copies) ; SASO ; BSMI ; C-TICK ; PSB ; CCC ; WEEE ; ROHS

z Audio Interface (Speaker Specification)

Line input signal 1.0 Vrms
Line input impedance > 10 kOhm
Maximum Amp power output (Watt)

1.2 W (RL=8Ω)

Speaker Power rating(Ω/Watt) 8Ω/ 1.5 W (MAX)
THD ≦ 8% (Maxmum output @ 1KHZ)

Signal to Noise Ratio 50 dB
Frequency response 500 Hz – 20 Khz
SPL.

80 ± 3 dB / 10.W‧0.5m

Line input connection

3.5 mm stereo jacks

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Vibration

There should be no audible vibration
resonance at volume=100%(input
signal within 1.0 Vrms)

Screen image

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

SPEAKERS STAY ON WHEN THE
REST OF THE MONITOR IS IN
POWER SAVING
NOTE: THERE IS NO GUARANTEE <1
W AT POWER CONSUMPTION IN
ACTIVE OFF MODE, WHEN THE
AUDIO CABLE IS CONNECTED

z Panel Characteristics:

1st Source Panel

Model number HSD HSD190SGW1-A
Type TN TYPE WITH RSDS INTERFACE
Active Size 19” WIDE ; 408.24 (H) x 255.15 (V)
Pixel Arrangement RGB VERTICAL STRIPE
Pixel Pitch 0.2835(H) X 0.2835(H) MM
Glass Treatment ANTI GLARE (HARD COATING 3H)
# of Backlights 4 CCFL ; TOP & BOTTOM EDGE SIDE
Backlight Life 40,000 HOURS (MIN)
Luminance (5-point) –
Condition:
CT = 6500K, Contrast = Max,
Brightness = Max, Inverter
Current=6.5mA

300 CD/M2 (TYP)
240 CD/M2 (MIN AFTER 30 MINUTE WARM
UP)

Brightness Uniformity ≧70% ENTIRE AREA (MIN)
Contrast Ratio *1 700:1 (TYP), 450:1 (MIN)
Color Depth 16.2 MILLION COLORS (6 BITS + 2 BITS

FRC)

Viewing Angle (Horizontal) @ CR>10

Typical: 150º
Minimum: 130º
@ CR>5
Typical: 170º
Minimum: 150º

Viewing Angle (Vertical) @ CR>10

Typical: 140º
MINIMUM: 120º
@ CR>5
Typical: 160º

Minimum: 140º

Response Time *1
10%-90% @ Ta=25°C

Typical = 5ms (Tr =

1.5 ms,Tf =3.5 ms)

Maxmum = 10ms (Tr =3 ms,Tf =7 ms)

Panel Defects Please see Panel Quality Specifications.

*1 Test conditions: Inverter Current=6.5mA, Color Temp.=User Mode, OSD: Brightness=100%, Contrast=100%

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ELECTRICAL REQUIREMENT
Horizontal / Vertical Frequency

Horizontal Frequency 24 – 80 kHz
Vertical Refresh Rate 50 – 75 Hz.
Maximum Pixel Clock 135 MHz
Sync Polarity Independent of sync polarity.

Timing Table

fH fV Dot cloc

k

ync polarit

y

Horizontal (dot) Vertical (line)

Mod

e

Resolution (KHz) (Hz) (MHz) H V A B C D E O P Q R S

備註

1 640×350 @70Hz VGA31.46970.087 25.175 P N 800 96 48 640 16 449 2 60 350 37

2 640×350 @85Hz VGA37.86185.080 31.500 P N 832 64 96 640 32 445 3 60 350 32

Performance no
guarantee

3 640×400 @60Hz VGA31.46959.940 25.175 N P 800 96 48 640 16 525 2 73 400 50

Performance no
guarantee

4 640×400 @70Hz VGA31.46970.087 25.175 N P 800 96 48 640 16 449 2 35 400 12

5 640×400 @85Hz VGA37.86185.080 31.500 N P 832 64 96 640 32 445 3 41 400 1

Performance no
guarantee

6 640×480 @50Hz VGA24.68849.637 19.750 N P 800 64 80 640 16 497 4 10 480 3

Performance no

guarantee
7 640×480 @60Hz VGA31.46959.940 25.175 N N 800 96 48 640 16 526 2 33 480 11
8

40×480 @67Hz MAC35.00066.667 30.240 N N 864 64 96 640 64 525 3 39 480 3 SOG can support

9 640×480 @72Hz VGA37.86172.809 31.500 N N 832 40 128 640 24 520 3 28 480 9

10 640×480 @75Hz VGA37.50075.000 31.500 N N 840 64 120 640 16 500 3 16 480 1

11 640×480 @85Hz VGA43.26985.008 36.000 N N 832 56 80 640 56 509 3 25 480 1

Performance no

guarantee

12 720×400 @70Hz VGA31.46970.087 28.322 N P 900 108 45 720 27 449 2 35 400 12

13 720×400 @85Hz VGA37.92785.039 35.500 N P 936 72 108 720 36 446 3 42 400 1

Performance no

guarantee

fH fV Dot clock

Sync

polarity

Horizontal (dot) Vertical (line)

Mod

e

Resolution (KHz) (Hz) (MHz) H V A B C D E O P Q R S

備註

14 720x480@60Hz 31.469 59.940 27.000 N N 858 62 76 720 0 525 6 39 480 0

Performance no

guarantee

15 720x576 @50Hz 31.250 50.000 27.000 N N 864 64 12 720 68 625 5 5 576 39

Performance no

guarantee

16

800×600 @56Hz
SVGA

35.156 56.250 36.000 P P 1024 72 128 800 24 625 2 22 600 1

17

800×600 @60Hz
SVGA

37.879 60.317 40.000 P P 1056 128 88 800 40 628 4 23 600 1

18

800×600 @72Hz
SVGA

48.077 72.188 50.000 P P 1040 120 64 800 56 666 6 23 600 37

19

800×600 @75Hz
SVGA

46.875 75.000 49.500 P P 1056 80 160 800 16 625 3 21 600 1

20

800×600 @85Hz
SVGA

53.674 85.061 56.250 P P 1048 64 152 800 32 631 3 27 600 1

Performance no

guarantee

21

832×624 @74.6Hz
MAC

49.725 74.500 57.283 N N 1152 64 224 832 32 667 3 39 624 1 SOG can support

22 1024×768 @50Hz XGA 39.643 49.980 52.000 N P 1312 104 144 1024 40 793 4 18 768 3

Performance no

guarantee
23 1024×768 @60Hz XGA 48.363 60.004 65.000 N N 1344 136 160 1024 24 806 6 29 768 3
24 1024×768 @70Hz XGA 56.476 70.069 75.000 N N 1328 136 144 1024 24 806 6 29 768 3
25 1024×768 @75Hz XGA 60.023 75.029 78.750 P P 1312 96 176 1024 16 800 3 28 768 1

26

1024×768 @75Hz
MAC

60.150 74.720 80.000 N N 1330 96 168 1024 42 805 3 31 768 3

27 1024×768 @85Hz XGA 68.677 84.997 94.500 P P 1376 96 208 1024 48 808 3 36 768 1

Performance no

guarantee

28

1152×864 @75Hz
SXGA

67.500 75.000 108.000 P P 1600 128 256 1152 64 900 3 32 864 1

29 1152×870 @75Hz MAC 68.681 75.062 100.000 N N 1456 128 144 1152 32 915 3 39 870 3 SOG can support

30 1280×768@50Hz 39.593 49.929 65.250 N P 1648 128 184 1280 56 793 7 15 768 3

Performance no

guarantee
31 1280×768 @60Hz 47.396 59.995 68.250 P N 1440 32 80 1280 48 790 7 12 768 3
32 1280×768 @60Hz 47.776 59.870 79.500 N P 1664 128 192 1280 64 798 7 20 768 3
33 1280×768 @75Hz 60.289 74.893 102.250 N P 1696 128 208 1280 80 805 7 27 768 3

34 1280×768 @85Hz 68.633 84.837 117.500 N P 1712 136 216 1280 80 809 7 31 768 3

Performance no

guarantee

35 1280×960 @50Hz 49.405 49.853 83.000 N P 1680 128 200 1280 72 991 4 3 960 3

Performance no

guarantee
36 1280×960 @60Hz 60.000 60.000 108.000 P P 1800 112 312 1280 96 1000 3 36 960 1

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fH fV

Dot

clock

Sync

polarity Horizontal (dot) Vertical (line)

Mod

e

Resolution (KHz) (Hz) (MHz) H V A B C D E O P Q R S

備註

37 1280×960 @75Hz 74.592 74.443 128.895 P P 1728 136 224 1280 88 1002 3 36 960 3

38 1280×1024 @50Hz SXGA 52.679 49.838 80.500 N P 1680 128 200 1280 72 1057 7 23 1024 3

Performance no

guarantee
39 1280×1024 @60Hz SXGA 63.981 60.020 108.000 P P 1688 112 248 1280 48 1066 3 38 1024 1
41 1280×1024 @72Hz SXGA 76.020 71.448 130.223 P P 1712 133 248 1280 51 1064 2 38 1024 0
42 1280×1024 @75Hz SXGA 79.976 75.025 135.000 P P 1688 144 248 1280 16 1066 3 38 1024 1
43 1360×768 @60Hz WXGA 47.712 60.015 85.500 P P 1792 112 256 1360 64 795 6 18 768 3

44

1400×1050 @50Hz WXGA
+

54.113 49.965 100.000 N P 1848 144 224 1400 80 1083 4 26 1050 3

Performance no

guarantee

45

1400×1050 @60Hz WXGA
+

64.744 59.948 101.000 P N 1560 32 80 1400 48 1080 4 23 1050 3

46

1400×1050 @60Hz WXGA
+

65.317 59.978 121.750 N P 1864 144 232 1400 88 1089 4 32 1050 3

47

1400×1050 @75Hz WXGA
+

82.278 74.867 156.000 N P 1896 144 248 1400 104 1099 4 42 1050 3

48

1440×900 @60Hz WXGA
+

55.469 59.901 88.750 P N 1600 32 80 1440 48 926 6 17 900 3

49

1440×900 @60Hz WXGA
+

55.935 59.887 106.500 N P 1904 152 232 1440 80 934 6 25 900 3

50

1440×900 @75Hz WXGA
+

70.635 74.984 136.750 N P 1936 152 248 1440 96 942 6 33 900 3

*1. Tolerance ± 2kHz.≧
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without

blanking.
*3. The image quality of 85Hz mode might be worse than 75Hz. (Display quality is not guaranteed because the LCD
panel supports upto 75Hz)

Primary Presets

1440x900 @ 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

Image Adjust” time

● Under DOS mode (640 x 350, 720 x 400 & 640 x 400), it should recall factory setting when

execute “Auto Image Adjust”

● The monitor needs to do “Auto Adjust” the first time when a new mode is detected(See

section “0-Touch™ Function Actions”)

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3. Front Panel Function Control Description

3.1 Short Cuts Function from the button(s)

[1] Main Menu
[2] Input toggle (Analog or Digital)

[▼] or [▲] To immediately activate Brightness /Contrast menu.

Hot Keys for Function Controls

[▼]+ [▲] Recall Contrast or Brightness while in the Contrast or

Brightness adjustment, or recall both of Contrast and
Brightness when the OSD is not on.

[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400

or 640x400 mode

[1] + [▼] + [▲]

(hold for 3 sec)

White Balance. White Balance should set the screen on
the pure black and white pattern with 640*480@60Hz
resolution.

[1] + [▼]

(hold for 10 sec)

Power Lock (Unlock). User won’t be able to turn off the
monitor.

[1] + [▲]

(hold for 10 sec)

OSD Lock (Unlock). It will lock all functions.

[2] + [ ]

with signal (hold for 3 sec)

Factory Mode (Press [ ] exit factory mode. )
Inter Factory Mode adjust white balance and setting Burn
in Mode (On or Off) .

Remark : All the short cuts function are only available while OSD off

3.2 Front Panel Hardware Controls

Power Switch (Front Head) Power Control, soft Power Switch.
Power LED (Front Head) Blue – ON

Orange – Active Off

Dark = Soft Power Switch OFF
Front Panel Controls (Head)
[ 1 ] [ 2 ] [ ] [▼] [▲]

[ 1 ] Button 1

[ 2 ] Button 2

[ ] Power

[▼] Down Arrow Button

[▲] Up Arrow Button

Note: Power Button, Button 1 and Button 2

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

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3.3 OSD Menu Controls

Select the menu items shown below by using the up [▲] and down [▼] buttons.

z Main Menu :

z Auto Image Adjust :

To automatically adjust H./ V. Position, Phase adjust and Clock adjust.

REMARK: There may need to select “Fine Tune” function on “Manual Image Adjust” to

optimized Performance for various VGA tolerance.

z Contrast / Brightness :

To adjust the Contrast of the video and the backlight currency.

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z Input Select :

To select the signal sources of the Analog or Digital.

z Audio Adjust :

To adjust the audio volume and mute.

z Color Adjust :

To select the color temperature sRGB, 9300°K, 7500°K ,6500°K, 5400°K or user color.

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z Information:

To display the data about Horizontal / Vertical frequency, Pixel clock, Resolution ,

Model number and Serial No. of the monitor.

z Image Adjust:

Horizontal Size: To adjust the horizontal pixel clock of the video.

H./V. Position: To adjust the horizontal and vertical position of the video.

Fine Tune: To adjust the delay time of data and clock.

Sharpness: To select the picture sharpness of display.

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z Setup Menu::

Language Select: To select one of eight languages.(English, French, German, Italian,

Spanish, Finnish, Japanese, Traditional Chinese, and Simplified
Chinese)

Resolution Notice: Enable (on) : OSD will notify the best picture quality resolution change

the resolution to 1440 x 900

OSD Position: To set OSD position.

OSD Timeout: To set the displaying time of OSD.

OSD Background :To select video background brightness.

z Memory Recall:

Restore default settings of Clock, H./V. Position, Phase, Contrast, Brightness, Color
temperature, OSD position, OSD timeout and Sharpness, Volume.

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4. Circuit Description

1. Power supply (DC/DC Converter)

This brick convert is the 110-220AC input voltage to 12V AND 5V output for inverter,

audio, panel and system controller use.

It consists of a PWM IC (CM0565R, U101)

2. Scaling controller

The ADC is to convert RGB analog signal to digital signal that scaling chip can

acknowledge.

The HSYNC input receives a logic signal and provides the frequency reference for

pixel clock generation.

The scaling IC is to converts the input signal ranging from VGA to WXGA into WXGA

resolution that panel can acknowledge.

GENERAL DESCRIPTION

The TSUM17AK is a high performance, and fully integrated graphics processing IC solution
for LCD monitors with resolutions up to WXGA. It is configured with an integrated triple-ADC/PLL,
a high quality scaling engine, an on-screen display controller, a built-in output clock generator,
and LVDS display interface. To further reduce system costs, the TSUM17AK also integrates
intelligent power management .

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5. Adjustment Procedure

1. Function Test

1.1 Product

- 19” LCD Monitor

1.2 Test Equipment

- Color Video Signal & Pattern (or PC with WXGA resolution and a sound card)

1.3 Test Condition

Before function test and alignment, each LCD Monitor should be run-in and warmed

up for at least 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=43.27kHz, V=85Hz)
800*600 (H=53.7kHz, V=85Hz)
1024*768 (H=68.67kHz, V=85Hz)
1280*1024 (H=79.97kHz, V=75Hz)
1440*900 (H=70.63kHz, V=75Hz)

1.4 Test Display Modes & Pattern

1.4.1 Compatible Modes
Digital Analog

1. 640 x 480 @ 60Hz, 31.5kHz

2. 640 x 480 @ 67Hz, 35.0kHz

3. 640 x 480 @ 75Hz, 37.5kHz

4. 640 x 480 @ 72Hz, 37.9kHz

5. 640 x 480 @ 85Hz, 43.27kHz

6. 720 x 400 @ 70Hz, 31.5kHz

7. 800 x 600 @ 56Hz, 35.1kHz

8. 800 x 600 @ 60Hz, 37.9kHz

9. 800 x 600 @ 75Hz, 46.9kHz

10. 800 x 600 @ 72Hz, 48.1kHz

11. 800 x 600 @ 85Hz, 53.7kHz

12. 832 x 624 @ 75Hz, 49.7kHz

13. 1024 x 768 @ 60Hz, 48.4kHz

14. 1024 x 768 @ 70Hz, 56.5kHz

15. 1024 x 768 @ 72Hz, 58.1kHz

16. 1024 x 768 @ 75Hz, 60.0kHz

17. 1024 x 768 @ 85Hz, 68.67kHz

18. 1280 x 1024 @ 60Hz, 63.4kHz

19. 1280 x 1024 @ 75Hz, 79.97kHz

20. 1440 x 900 @ 75Hz, 70.63kHz

1. 640 x 480 @ 60Hz, 31.5kHz

2. 640 x 480 @ 67Hz, 35.0kHz

3. 640 x 480 @ 75Hz, 37.5kHz

4. 640 x 480 @ 72Hz, 37.9kHz

5. 640 x 480 @ 85Hz, 43.27kHz

6. 720 x 400 @ 70Hz, 31.5kHz

7. 800 x 600 @ 56Hz, 35.1kHz

8. 800 x 600 @ 60Hz, 37.9kHz

9. 800 x 600 @ 75Hz, 46.9kHz

10. 800 x 600 @ 72Hz, 48.1kHz

11. 800 x 600 @ 85Hz, 53.7kHz

12. 832 x 624 @ 75Hz, 49.7kHz

13. 1024 x 768 @ 60Hz, 48.4kHz

14. 1024 x 768 @ 70Hz, 56.5kHz

15. 1024 x 768 @ 72Hz, 58.1kHz

16. 1024 x 768 @ 75Hz, 60.0kHz

17. 1024 x 768 @ 85Hz, 68.67kHz

18. 1280 x 1024 @ 60Hz, 63.4kHz

19. 1280 x 1024 @ 75Hz, 79.97kHz

20. 1440 x 900 @ 75Hz, 70.63kHz

1.4.2 Function Test Display Pattern

Item Test Content Pattern Specification Remark

1 Frequency &

Tracking

Fine Line Moire Eliminate visual wavy

noise.

Figure 1

2 Contrast/Brightness 16 Gray Scale 16 gray levels should be

distinguishable.

Figure 2

3 Boundary Horizontal &

Vertical
Thickness

Horizontal and Vertical position
of video should be adjustable to
be within the screen frame.

Figure 3

4 RGB Color

Performance

RGB Color
Intensities

Contrast of each R, G, B, color
should be normal.

Figure 4, 5,
6

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5 Screen Uniformity

& Flicker

Full White Should be compliant with the

spec.

Figure 7

6 Dead Pixel/Line White Screen &

Dark Screen

The numbers of dead pixels
should be compliant with the
spec.

Figure 7, 8

7 White Balance White & Black

Pattern

The screen must have the pure
white and black pattern, no other
color.

Figure 9

Fine Line Morie Pattern (Figure1) Gray Scale Pattern (Figure2)

Horizontal & Vertical Thickness Pattern

(Figure 3)

R. Color Pattern (Figure 4)

G. Color Pattern (Figure5) B. Color Pattern (Figure 6)

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Full White Patter (Figure 7) Dark Screen Pattern (Figure 8)

Black-White Pattern (Figure 9)

1.5 Function Test and Alignment Procedure

1.5.1 Memory Recall

You should do “Memory Recall” first. This action will allow you to erase all

end-user’s settings and restore the factory defaults.

1.5.2 Auto Image Adjust

Please select and enter “Auto Image Adjust” function on Main Menu to see if it is

workable.

The “Auto Image Adjust” function is aimed to offer a better screen quality by

built-in ASIC. For optimum screen quality, the user has to adjust each function
manually.

1.5.3 Firmware

Test Pattern: Burn In Mode (Refer to Chapter 3-1. Hot Keys for Function Controls)

- Make sure the F/W is the latest version.

1.5.4 DDC

Test Pattern: EDID program

- Make sure it can pass test program.

1.5.5 Fine Tune and Sharpness

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Test Signal: 1440x900@60Hz
Test Pattern: Line Moire Pattern

- Check and see if the image has noise and focus performs well. Eliminate visual line

bar.

- If not, readjust by the following steps:
(a) Select and enter “Fine Tune” function on “Manual Image Adjust” to adjust the

image

to eliminate visual wavy noise.

(b) Then, select and enter “Sharpness” function to adjust the clarity and focus of the

screen image.

1.5.6 Boundary

Test Signal: 1440x900@60Hz
Test Pattern: Horizontal & Vertical Line Thickness Pattern

- Check and see if the image boundary is within the screen frame.

- If not, readjust by the following steps:
(a) Select and enter “Manual Image Adjust” function on OSD Main Menu.
(b) Then, select and enter “Horizontal Size” or “Horizontal/Vertical Position”

function to adjust the video boundary to be full scanned and within screen frame.

1.5.7 White Balance

Test Signal: 1440x900@60Hz
Test Pattern: White and Black Pattern

1.5.8 R, G, B, Colors Contrast

Test Signal: 1440x900@60Hz
Test Pattern: R, G, B, Color Intensities Pattern and 16 Gray Scale Pattern

- Check and see if each color is normal and distinguishable.

- If not, please return the unit to repair area.

1.5.9 Screen Uniformity and Flicker

Test Signal: 1440x900@60Hz
Test Pattern: Full White Pattern

- Check and see if it is in normal condition.

1.5.10 Dead Pixel and Line

Test Signal: 1440x900@60Hz
Test Pattern: Dark and White Screen Pattern

- Check and see if there are dead pixels on LCD panel with shadow gauge and filter

film.

- The total numbers and distance of dead pixels should be compliant with the spec.

1.5.11 Mura

Test Pattern: White, RGB, Black, & Grey
Test Tool: 8% ND Filter

- Check if the Mura can pass 8% ND Filter.

1.5.12 Audio

Test Signal: Voice signal (optional, depend on model)
Test Pattern: liberty

- Make sure there is audio output.

- Make sure that audio function (volume≦80%) is working without noise and

resonance.

- Make sure that the sound of right and left speakers are in balance.

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1.5.13 Check for Secondary Display Modes

Test Signal:
Analog / Digital:

640*350@70Hz 640*480@60HZ / 75HZ 720*400@70Hz
800*600@60HZ / 75HZ 832*624@75Hz 1024*768@60HZ / 75HZ
1280*1024@60 / 75Hz

- Normally when the primary mode 1440x900@60Hz is well adjusted and compliant
with the specification, the secondary display modes will be great possible to be
compliant with the spec. But we still have to check with the general test pattern to
make sure every secondary is compliant with the specification.

1.5.14 Memory Recall

After final QC step, we have to erase all saved changes again and restore the

factory defaults. You should do “Memory Recall” again.

1.5.15 Power Off Monitor

Turn off the monitor by pressing “Power” button.

2. Firmware Upgrade Procedure

When you receive the returned monitor, please check whether the firmware version is the

latest.

If not, please do the following procedures to upgrade it to the latest version.

2.1 Equipment Needed

- VX1935WM Monitor

- Fixture for Firmware Upgrade

- VGA Cable

- PC (Personal Computer)

- ISP Tool

- Firmware Upgrade Program

- One additional monitor for checking the program execution

z ISP tool instruction

15 pin D-Sub LPT cable

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ISP tool Use 12V adapter

z ISP Download program procedure
¾ Hardware Connect status:

ISP connect method

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¾ Version update

1. Check : Monitor model

2. Check : Firmware version

Factory Mode :
a. Hold on [2] + [ ] with signal (hold for 3 seconds) into the factory mode.
b. Press [ ] key exit factory mode.

3. Update final firmware version
Example : ( VX1935WM follow the same setting procedure )

1. Check : Monitor model : HC154

2. Check : Firmware version : HC154_AL_150MX17A01R30.2 (ps)

3. Update final firmware version : HC154_AL_150MX17A01R30.3
(ps) HC154_AL_150MX17A01R30.2

AL : Analog / LVDS
DL : Analog + Digital / LVDS
AR : Analog /RSDS
DR : Analog + Digital / RSDS

Panel type : 150MX17A01
Firmware version : R30.2

¾ Change Panel (Version update)

1. Check : Monitor model

2. Check : Firmware version

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Factory Mode :

a. Hold on [2] + [ ] with signal (hold for 3 seconds) into the factory mode.
b. Press [ ] key exit factory mode.

3. Check : Panel type.

4. Change Panel.

5. Update final firmware version.

6. Update EDID code.

Example : ( VX1935WM follow the same setting procedure )

1. Check : Monitor model : HC154

2. Check : Firmware version : HC154_AL_150MX17A00R30.2 (ps.1)

3. Check : Panel type : HSD150MX17A00.

4. Change Panel. (ps.2)
(ps.1) HC154_AL_150MX17A00R30.2

AL : Analog / LVDS
DL : Analog + Digital / LVDS
AR : Analog /RSDS
DR : Analog + Digital / RSDS

Panel type : 150MX17A01
Firmware version : R30.2

(ps.2) If change panel : (Form HSD150MX17A00 change to HSD150MX17A01)
Panel type : 150MX17A00 => 150MX17A01
Firmware change : HC154_AL_150MX17A00R30.2 =>

HC154_AL_150MX17A01R30.2

5. Update final firmware version : HC154_AL_150MX17A01R30.3

6. Update EDID code : HC154_150MX17A01_EDID_A.txt

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¾ Change Scaler Board (Version update)

1. Check : Monitor model

2. Check : Firmware version

Factory Mode :
a. Hold on [2] + [ ] with signal (hold for 3 seconds) into the factory mode.
b. Press [ ] key exit factory mode.

3. Change scaler board.

4. Update final firmware version.

5. Update EDID code.
Example : ( VX1935WM follow the same setting procedure )

1. Check : Monitor model : HC154

2. Check : Firmware version : HC154_AL_150MX17A01R30.2 (ps)
(ps) HC154_AL_150MX17A01R30.2

AL : Analog / LVDS
DL : Analog + Digital / LVDS
AR : Analog /RSDS
DR : Analog + Digital / RSDS

Panel type : 150MX17A01

Firmware version : R30.2

3. Change scaler board.

4. Update final firmware version : HC154_AL_150MX17A01R30.3

5. Update EDID code : HC154_150MX17A01_EDID_A.txt

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¾ Mstar scaler ISP function

1. Enforce Mstar ISP_Tool program.

2. After Enforcing Mstar ISP_Tool Program, open Utility Window.

3. Enforce Mstar ISP Utility Window's Connect function, and Device Type's Dialog
window will be opened ,then press "Sure " on Dialog window.

4. Enforce Mstar ISP Utility window 之 Read function.

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5. Enforce Mstar ISP Utility window's "Read" , and choose the path and the file of Binary

code.

6. Choose the path and file of Binary code ,and Program Bin Ready Dialog window will

be opened, then press "Sure" on Dialog window.

7. Enforce Mstar ISP Auto function of Utility window.

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8. Enforce Mstar ISP Utility window "Run"and write in the data .

9. After writing in the data , Enforce Dis Connect function of Mstar ISP Utility window and

the burn in procedure will be completed.

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¾ DDC Key In Procedure

Note:

1. Every time after replacing the main board, you have to do the DDC key in.

2. If you find the DDC does not conform to the monitor, you have to do the DDC key in.

Equipment Needed

- VX1935 Series Monitor

- DDC Card

- PC

- RS232 cable

- VGA Cable or DVI Cable

DDC Card (D8330)

RS-232 Cable VGA Cable
Step 1 : Select VA903b in Working Model column to show EDID data on left

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Step 2 : Modify the column of Week of Manufacture and Year of Manufacture and ID serial

Number then press “2B” button for changing serial number data.

Step 3 : You will see the result as follows.

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¾ Packing For Shipping And Disassembly Procedure

Packing For Shipping

1. Packing Procedure

1.1 Put the monitor in the PE bag and seal the bag with tape. (Figure 1 ~ 2)

(Figure 1) (Figure 2)

1.2 Put the cushions on the monitor. (Figure 3) 1.3 Put the Cables in the PE bag. (Figure 4)

(Figure 3) (Figure 4)

1.4 Place the monitor into the carton and then put all the accessories into the carton. At last,
close the carton and seal it with tape. (Figure 5 ~ 6)

(Figure 5) (Figure 6)

Power Code /
Audio Cable

D-Sub/ DVI
cables

User’s manual / Warranty card / CD package

D-Sub cable DVI cable Power code

Audio cable

Base short side turn upward

Panel side forward

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1.2 Remove the ARM cover.

1.3 Unfasten six screws to remove the ARM.

2. Disassembly of Front Cover and Rear Cover

2.1 Unscrew ten screws to remove Rear Cover.

Disassembly Procedure

1. Disassembly of Stand unit from Monitor

1.1 Detach Base Unit from the monitor.

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2.3 Unfasten six screws to remove the D-sub / DVI connector and Power socket.

2.4 Unfasten five screws and disconnect Inverter cables from panel to remove the shielding.

2.2 Unfasten four screws to remove Hinge folder bracket.

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2.5 Unfasten four screws to remove the Keypad board.

2.6 Unfasten eight screws to remove Power Inverter board and D-sub/DVI connect board.

Power Inverter Board D-sub/DVI connect board Cables

2.7 Remove the Front Bezel.

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6. Troubleshooting Flow Chart

Q1

Q2

Q3

Q4

Q5

NO POWER

Please check if power cable is
connected properly

Change P/I/A board (ps)

YES

NO

Please reconnect power
cable

NO DISPLAY

Please check if signal cable is
connected properly

Change Panel

Please reconnect signal
cable

YES

NO

Display panel have horizontal
line or vertical line

Please change panel

The backlight is OFF

Please check inverter
wire if properly connected

1

2

Please change panel or
P/I/A board (ps)

Display panel have block bar Please change panel

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Q6

Q7

(ps) : P/I/A board Î Power/Inverter/Audio board

Display panel with missing
color

Please check signal cable if
connected properly and
check all pins are good

without bent

1

Please check if panel wire is

loose connection or not

2

Please change panel

3

Audio output error

Please change P/I/A
board (ps)

7. Recommended Spare Parts List

Serial No. Prefix: Q8Y Rev: 1a

Item ECR/ECN ViewSonic P/N Ref. P/N Location Universal number#

1

Power Cord - 250V/10A 1.8M 3C BLK (China)

A-00008038

33-E3980005G000

2

Power Cord - 125V/10A 1.8M 3C BLK (USA)

A-00008039

33-E3980000G000

3

Power Cord - 250V/10A 1.8M 3C BLK (Europe)

A-00008040

33-E3980003G000

4

SoftWare Packing assy (china)

A-00008042

72-01193502G000

5

PC Board Assembly:

Key Board (Lead Free)

B-00008074

70-VX193500G000

6

Front Panel (B + Button)

C-00008105

45-VX190117G350

7

Back Cover

C-00008106

45-VX190213G350

8

Front Cover ( Silver)

C-00008107

40-05010019G000

9

Back Cover (Arm - Silver)

C-00008108

40-05010020G000

10

Cover (Silver)

C-00008109

40-11010001G000

11 Cables:

Video Cable D/15P-15P(M)

CB-00008001

33-00090501G000

12 Audio Cable (SZE33261B) CB-00008003

33-00070500G000

13 Energy Star Label DC-00008001

62-07000009G000

14 Hi-Pot Pass Label DC-00008003

62-07000011G000

15

Label (5ms sticker)

DC-00008098

62-07000012G000

16

Label (Mylar 425*275*0.1)

DC-00008099

42-01260011G000

17 Speaker 1.5W/8R RIGHT E-00008004

30-V9031R50G000

18 Speaker 1.5W/8R LEFT E-00008005

30-V9031R51G000

19

LCD Module (HSD190SGW1-A)

E-00008073

190SGW1-A00

20

Miscellaneous:

Bird Logo Brand For Viewsonic M-00008001

42-04260007G000

21

PE BAG 225*400MM

P-00008004

61-03000003G000

22

PE BAG 500*650mm

P-00008005

61-03000007G000

23

Craft Box (TWN)

P-00008085

60-01000032G000

24

Craft Foam - Left

P-00008086

61-01000029G000

25

Generic Foam Set

P-00001347

30833

26

Generic Box

P-00002515

20653

27

Craft Foam - Right

P-00008088

61-01000034G000

28

Plastics:

Name plate Brand for Viewsonic PL-00008002

42-04170008G000

29

Pedestal Base (Black-C)

PL-00008024

40-06010019G000

Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items.
Remark 2:

Accessories:

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.

RECOMMENDED SPARE PARTS LIST (VX1935wm-1)

Description

ViewSonic Model Number: VS11307

Cabinets:

Documentation:

Electronic
Components:

Packing Material:

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ViewSonic Model Number: VS11307
Serial No. Prefix: Q8Y
Rev: 1a

Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

1

A-00008042

72-01193502G000 VX1935 China Packing assy 1

2

N/A

72-01193501G000 VX1935 USA Packing assy 1

3

B-00008074

70-VX193500G000 VX1935 KEY BOARD ASS’Y (Lead Free) 1

4

N/A

62-07000017G000 Viewsonic POP sticker 1

5

N/A

62-07000015G000 ViewSonic Customer label 180*100mm (China) 1

6

N/A

62-07000014G000 Customer label (China) 1

7

DC-00008098

62-07000012G000 5ms sticker 1

8

DC-00008003

62-07000011G000 Hi-Pot Pass Label 1

9

DC-00008002

62-07000010G000 QC-Pass Label (china) 1

10

DC-00008001

62-07000009G000 Energy Star Label 1

11

N/A

62-06000006G000 Barcode label 35*4mm (China) 4

12

N/A

62-06000005G000 BARCODE LABEL 25*12MM 1

13

N/A

62-06000004G000 BARCODE LABEL 50*25MM 1

14

N/A

62-06000003G000 BARCODE LABEL 76.2*76.2MM 1

15

N/A

62-05000027G000 VX1935 ID LABEL TAIWAN 1

16

N/A

62-04000012G000 VX1935 CD User Guide 1

17

N/A

62-03000020G000 ViewSonic Warranty USA 1140*900 1

18

N/A

62-03000018G000 ViewSonic Warranty China 1

19

N/A

62-02000024G000 VX1935 Quick Start Taiwan 1

20

N/A

62-02000022G000 VX1935 Base Guide 1

21

N/A

61-03000011G000 PE bag 750*700mm (China) 1

22

P-00008005

61-03000007G000 PE BAG 500*650mm 1

23

P-00008004

61-03000003G000 U171 PE BAG 225*400MM 1

24

P-00008088

61-01000034G000 VX1935 END CAP-R EPS 1

25

P-00008086

61-01000029G000 VX1935 END CAP EPS 1

26

P-00008085

60-01000032G000 VX1935 Carton Viewsonic Taiwan 1

27

C-00008106

45-VX190213G350 VX1935wm Back Cover Sub-Assy 1

28

C-00008105

45-VX190117G350 VX1935wm Bezel-B + Button-B Sub-Assy 1

29

N/A

43-90000072G300 SCREW M4x10 PH SW+W NI ME 4

30

N/A

43-90000066G410 SCREW M3x8 PHW LW CR3/BL TAP 4

31

N/A

43-04030802G010 SCREW M3*8 FLAT NI TAP 4

32

N/A

43-02040602G000 Screw M4*6 Wafer Head Black-Ni Me 4

33

N/A

43-01030802G110 SCREW M3x8 PAN WASHER NI TAP 12

34

N/A

43-01030402G000 Screw M3*4 Pan Head Ni Me 2

35

M-00008001

42-04260007G000 Bird Logo Brand for Viewsonic AL+PC 1

36

PL-00008002

42-04170008G000 Name plate Brand for Viewsonic AL 1

37

C-00008005

42-02110008G000 Back cover of ESD rubber-2 Black φ7*1.5 4

38

PL-00008001

42-02110002G000 HU171 Rubber Foot Black 7

39

DC-00008099

42-01260011G000 Mylar 425*275*0.1 for 19”W 1

40

N/A

41-07010015G000 VX1935wm Hinge SECC 1

41

N/A

41-03010061G000 VX1935wm speaker bracket SECC 4

42

N/A

41-03010052G000 VX1935M KEY LOCK BRACKET SECC 1

43

N/A

41-03010043G000 VX1935wm Hinge Sup. BKT SECC 1

44

N/A

41-03010042G000 VX1935wm Base BKT SECC 1

45

N/A

41-03010037G000 HX191_WALL MOUNT_BRACKET 2

46

C-00008109

40-11010001G000 VX1935wm Base_cover ABS-HB Silver 1

47

N/A

40-09010004G000 VX1935wm Cable Clipper DownABS-HB Silver 1

48

N/A

40-09010003G000 VX1935wm Cable Clipper Up ABS-HB Silver 1

49

PL-00008024

40-06010019G000 VX1935wm Base ABS-HB Pantone Black-C 1

50

C-00008108

40-05010020G000 VX1935wm Arm_Back cover ABS-HB Silver 1

51

C-00008107

40-05010019G000 VX1935wm Arm_front cover ABS-HB Silver 1

52

N/A

40-04020010G000 VX1935wm Power LENS PC 1

53

N/A

40-03010031G000 VX1935wmButton 2-KeyABS-HB Pantone Black 1

54

N/A

40-03010030G000 VX1935wmButton 3-KeyABS-HB Pantone Black 1

55

N/A

40-02010024G000 VX1935wm Back cover ABS-HB Black 1

56

N/A

40-01010055G000 VX1935wm Bezel ABS-HB Pantone Black-C 1

BOM LIST ( VX1935wm-1 )

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Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty

57

N/A

39-VX193500G000 VX1935 Key Board PCB Ver : 2.0 1

58

N/A

34-04170017G000 AL Foil W40*L200*T0.1mm 1

59

N/A

33-R3910506G000 CABLE STEREO PHONE(JHEN VEI) 1

60

N/A

33-R3910503G000 DVI CABLE 1800MM(JHEN VEI) 1

61

N/A

33-R3910501G000 CABLE SIGNAL D/15P-15P(M)1800MM-JHEN VEI 1

62

A-00008038

33-E3980005G000 PWR CORD CHN 250V/10A 1.8M 3C BLK"Linetek" 1

63

N/A

33-B1540503G000 DVI CABLE 1800MM WHITE SZE60288B(GLET) 1

64

CB-00008001

33-00090501G000 CABLE SIGNAL D/15P-15P(M)1800MM 1

65

A-00008003

33-00080002G000 PWR CORD CHINA 250V/10A 1800MM LF 1

66

N/A

33-00080000G000 PWR CORD AMERICAN(UL/CSA) 125V/10A 1800m 1

67

CB-00008003

33-00070500G000 CABLE STEREO PHONE SZE33261B 1

68

N/A

32-31012085G000 CONN W TO B 12P P*2.0 C1U2X-XX0VX(TACT) 1

69

N/A

32-31002083G000 CONN W TO B 2P P*2.0 C1U2X-XX0VX(TACT) 2

70

N/A

31-10400100G000 SW TACT 160GF DIP TSAC-2L 5

71

E-00008005

30-V9031R51G000 VA903 SPEAKER 1.5W/8R LEFT 1

72

E-00008004

30-V9031R50G000 VA903 SPEAKER 1.5W/8R RIGHT 1

73

E-00008004

30-V9031R50G000 VA903 SPEAKER 1.5W/8R RIGHT (China) 1

74

N/A

20-9MB04139G040 LED BLUE/Orange3P DIP (ENGYA) 1

75

E-00008073

190SGW1-A00 LIQUID CRYSTAL DEVICE HSD190SGW1-A 1

76

N/A

06-Y3352200G000 Bin Code VX1935_ DR_HSD190SGW1A00R30.2 1

77

N/A

04-1VX19GW1G100 EDID VX1935WM_190MGW1_EDID_D 1

78

N/A

04-1VX19GW1G000 EDID VX1935WM_190MGW1_EDID_A 1

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8. Exploded Diagram and Exploded Parts List

ViewSonic Model Number: VS11307
Rev: 1a

Serial No. Prefix: Q8

Y

Item ViewSonic P/N Ref. P/N Description Q'ty

1 E-00008004 30-V9031R50G000 VA903 SPEAKER 1.5W/8R RIGHT 1
2 E-00008005 30-V9031R51G000 VA903 SPEAKER 1.5W/8R LEFT 1
3 N/A 40-09010003G000 VX1935wm Cable Clipper Up ABS-HB Silver 1
4 N/A 40-09010004G000 VX1935wm Cable Clipper Down ABS-HB Silver 1
5 N/A 41-03010042G000 VX1935wm Base BKT SECC 1
6 N/A 41-03010043G000 VX1935wm Hinge Sup. BKT SECC 1
7 N/A 41-07010015G000 VX1935wm Hinge SECC 1
8 C-00008005 42-02110008G000 Back cover of ESD rubber-2 Black φ7*1.5 4

9 B-00008074 70-VX193500G000 VX1935 KEY BOARD ASS’Y (Lead Free) 1
10 N/A 43-90000072G300 SCREW M4x10 PH SW+W NI ME 8
11 PL-00008001 42-02110002G000 HU171 Rubber Foot Black 7
12 N/A 40-01010055G000 VX1935wm Bezel ABS-HB Pantone Black-C 1
13 N/A 40-02010024G000 VX1935wm Back cover ABS-HB Black 1
14 N/A 40-03010030G000 VX1935wmButton 3-KeyABS-HB Pantone Black 1
15 N/A 40-03010031G000 VX1935wmButton 2-KeyABS-HB Pantone Black 1
16 N/A 40-04020010G000 VX1935wm Power LENS PC 1
17 C-00008107 40-05010019G000 VX1935wm Arm_front cover ABS-HB Silver 1
18 C-00008108 40-05010020G000 VX1935wm Arm_Back cover ABS-HB Silver 1
19 PL-00008024 40-06010019G000 VX1935wm Base ABS-HB Pantone Black-C 1
20 C-00008109 40-11010001G000 VX1935wm Base_cover ABS-HB Silver 1
21 N/A 41-03010037G000 HX191_WALL MOUNT_BRACKET 2
22 N/A 41-03010052G000 VX1935M KEY LOCK BRACKET SECC 1
23 PL-00008002 42-04170008G000 Name plate Brand for Viewsonic AL 1
24 N/A 43-01030802G000 SCREW M3x4 PAN,NI,ME 10
25 N/A 43-01040604G000 SCREW M4*6 PAN BZ ME 2
26 N/A 43-04030802G010 SCREW M3*8 FLAT NI TAP 4
27 N/A 43-90000066G410 SCREW M3x8 PHW LW CR3/BL TAP 4
28

E-00008073

190SGW1-A00 LIQUID CRYSTAL DEVICE HSD190SGW1-A 1

EXPLODED PARTS LIST (VX1935wm-1)

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ViewSonic Model Number: VS11307
Rev: 1a

Item ViewSonic P/N Ref. P/N Location Q'ty

1

N/A

62-04000012G000 VX1935 CD User Guide

1

2

N/A

33-R3910501G000 CABLE SIGNAL D/15P-15P(M)1800MM-JHEN VEI

1

3

N/A

33-R3910503G000 DVI CABLE 1800MM(JHEN VEI)

1

4

N/A

33-R3910506G000 CABLE STEREO PHONE(JHEN VEI)

1

5

A-00008004

33-E3980011G000 PWR CORD TWN 125V/7A 1.8M 3C BLK "Linetek"

1

6

P-00008005

61-03000007G000 PE BAG 500*650mm

1

7

P-00008004

61-03000003G000 U171 PE BAG 225*400MM

1

8

P-00008086

61-01000029G000 VX1935 END CAP EPS

1

9

P-00008088

61-01000034G000 VX1935 END CAP-R EPS

1

10

DC-00008099

42-01260011G000 Mylar 425*275*0.1(Protective Film) for 19”W

1

11

P-00008085

60-01000032G000 VX1935 Carton Viewsonic Taiwan

1

12

DC-00008098

62-07000012G000 5ms sticker

1

13

N

/A

62-06000003G000 BARCODE LABEL 76.2*76.2MM

1

PACKING PART LIST (VX1935wm-1 )

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

40

9. Block Diagram

AC
INPUT
100V~240V

SW Power
12V
5V

AUDIO
U501
TDA7496

DC-DC
U401-1084-33PM

3.3V

SPEAKER

VDD+5

SCALAR
U1
TSUM17AK

INVERTER
MP 1038EY

DC-DC
U402-1084-18PM

1.8V

PANEL
DISPLAY

AUDIO
INPUT

H、SYNC
V、SYNC

BL_EN
BL-BRIGHT

R、G、
BINPUT

H、V SYNC
VGA D-SUB

SCL、SDA
VGA 5V

EEPROM
U3
24C16

DDC
U501
24C02

OSC 12M

Y1

TMDS SYNC
SCL_DVI、SDA_DVI

DVI5V

DDC
U601
24C02

Flash
U2
SST25VH010

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

41

10. Schematic Diagrams

R4

C26

C18

R16

C24

C28

Vin

GND

R26

R27

C3

R21

1

2.3

8

5

4

6.7

T1

VCC

R25

C2

R15

C29

C1

R1

S1

1

G1

2

S2

3

G2

4

D1

8

D1

7

D2

6

D2

5

U3

C25

C27

S1

1

G1

2

S2

3

G2

4

D1

8

D1

7

D2

6

D2

5

U2

C30

R11

BRC

9

BRS

10

DBRT

11

ABRT

12

ENSYNC

13

LOK

14

PRR

15

BTR

16

SI

1

LI

2

LV

3

COMP

4

AG

5

FT

6

LCS

7

LCC

8

UGR

17

OUTR

18

VCCR

19

LGR

20

PRL

22

PGR

21

PGL

28

LGL

27

VCCL

26

OUTL

25

UGL

24

BTL

23

U1

R9R3R10

C6

IC_VCC

IC_VCC

R17

G

DS

Q2

C23

D14

C19 C20

R28

R29

R22

R30

R31

R23

R32

R33

R24

LI LI

FB4

FB3

FB2

C14

FB1

C15

C16

C17

LV1

LV2

LV3

LV4

C22

R18

R7

1
2

CN1A

LV4

LV3

LV2

LV1

C31

FB1

FB4

C32

C34

FB2

FB3

C33

C4

D1

D2

D3

D4

D6

D5

D8

D7

C21

R8

ON/OFF

R5

R2

G

D S

Q1

C5

R6

D15

R34

C9

R35

C10

R36

C11

R37

C12

D10 D12

D11

D13

IC_VCC

DBRT

R12

R19

R41

C8

R40

Q3

C35

C36

C37

R43

3
4

CN1B

CN1

3
4

CN2B

1
2

CN2A

CN2

LI

R20R39R38

2

1

4

3

JP10

C7

Model

Title

Date Rev:

ViewSonic Corporation

INVERTER

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

42

Model

Title

Date Rev:

ViewSonic Corporation

OPEN FRAME

CY103

+

C114

D110

T101

R112

C115

1

3

6

5

D120

R120R121

L120

C260

R260B

D260

R234

C231

R232

R233

A K

R

IC230

R230

12

PC201A

+12V

R231

R263

+

C261

7.8

INVERTER

3 4

PC201B

C120

+

C123

ZD120

+5.2V/3A

+5.2V

D240

R240B

C240

+

C244

L240

+

C242

RTN

9.10

ZD121

11.12

F101

CX101

CY101

VA101

1

4

2

3

LF102

TH101

3

2

4

1

BD101

L

N

FG

CN100

R101

CY102

R102

1

4

2

3

LF101

R241

ZD260

R264

C243

C264

+

C241

R113

CY104

ZD110

R123

R124

R122

C124

Drain

1

GND

2

Vcc

3

FB

4

Ilimit

6

NC

5

U101

R235

R260A

R240A

R262

+

C232

R114

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

43

Model

Title

Date Rev:

ViewSonic Corporation

AUDIO

AUDIO_STBY

Volume

AUDIO_MUTE

SPL

SPR

+

C504

R503

R504

C506

C510

+

C502

+

C503

GND1GND2GND

3

INL

4

VAROUT_L

5

VOLUME

6

VAROUT_R

7

NC

8

INR

9

SVR

10

STBY

11

MUTE

12

GND

13

OUTR

14

VS15VS

16

OUTL

17

GND18GND19GND

20

U501

R510

C505

R505

C509

R507

R501

C508

R511

R506

+

C501

C507

R502

FB504

FB502

R509R508

C512C511

1
2
3
4
5

CN501

FB501

FB503

R512

AUDIO_MUTE

AUDIO_STBY

Volome

SPL
SPR

+5V

+12V

Q501

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

44

Model

Title

Date Rev:

ViewSonic Corporation

SCALER

3.3V

1.8V

3.3V

3.3V

AVDD

VDDC

3.3V

VMPLL

VDVI

VMPLL

3.3V

3.3V

VPLL

5V

AVDD

3.3V

3.3V

VDDP

3.3V

5V

VDVI

3.3V

VDDP

1.8V

VPLL

VDDC

AVDD

5V

5V

5V

5V

5V

3.3V

DDC_WP

OE

R_IN+

BL_BRIGHT

SW5_MENU

STV1

DDC_SDA

SW4_VOL+

G_IN+

LP

HSI

R_IN-

PWR_LEDG

B_IN+

B_IN-

STH_B

STH_F

POL

AMP_MUTE

CPV

AMP_STBY

DDC_SCL

BL_EN

PWR_LEDB

VOLUME

PWR_EN

VSI

DVI_R+

G_IN-

SOGI

DVI_R-

DVI_G-

DVI_G+

DVI_B-

DVI_CLK-

DVI_CLK+

DVI_B+

DVI_SCL

DVI_SDA

VGA_DET

DVI_DET

PWR

RA[0..5]

GA[0..5]

BA[0..5]

RB[0..5]

GB[0..5]

BB[0..5]

CLKAN
CLKBP
CLKBN

CLKAP

SW1_AUTO

SW2_VOL-

WP

LEDG

SDA

WP

SCL

LEDB

VCTRL

LEDG

VCTRL

LEDB

GA3

RB1

GB5

GB1

RB5

RB0

GB2

RB4

RB3

GA5

GA1

GA4

GB0

GB3

RB2

GB4

BA4

BA0
BA1
BA2
BA3

BA5

GA0

GA2

RA4

RA0

RA3

RA2

RA1

RA5

CLKBN

CLKAN

CLKAP

CLKBP

BB0
BB1
BB2
BB3
BB4
BB5

ESP
OSP

U1

TSUM17AK

59

56

57
54

58

55

53
63
64

51

62

61

70

72

71

73

79

21

108

32

33

109
110
111
112
113
114

118
119
120
121
122
123
124
125
126
127

107

106

105

41

47

39
40
42
43

44

45
46
48
49

3896116

67

12

104

102

11

14

68

65
66

36
37

29

50

97

69
78

20

22
23
24

27
28

30
31

35

76

77

19

100
101

98
99

93
94

91
92

89
90

9
10
15
16
17
18

2
3
5
6
7
8

128
1

80
81
88
87
86
85
84
83
82

25

26

75
74

52344

95

103

115

117

60

13

RIN0P

GIN0P

SOGIN0
BIN0P

RIN0N

GIN0N

BIN0N
HSYNC0
VSYNC0

REXT

REFP

REFM

SDO

SCK

SCZ

SDI

GPIO_P27/PWM1

PWM1/GPIO_P25

NC/LVACKM/NC

XIN

XOUT

RA1P/LVA2P/RA2

RA1N/LVA2M/RA3

RA2P/LVA1P/RA4

RA2N/LVA1M/RA5

RA3P/LVA0P/RA6

RA3N/LVA0M/RA7

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

NC/LVACKP/NC

GA3N/LVA3M/GA7

GA3P/LVA3P/GA6

GND

GND

RX2P
RX2N
RX1P
RX1N

AVDD_DVI

RX0P
RX0N
RXCKP
RXCKN

GND

GND

GND

VDDP

VDDC

MODE[1]

MODE[0]

VCTRL

VDDP

VDD_OTP

DDCA_SDA
DDCA_SCL

DDCD_SDA
DDCD_SCL

PWM0/GPIO_P26

AVDD_DVI

VDDC

GPIO_P15

PWM2/GPIO_P24

GPIO_P16

GPIO_P17/SAR0
GPIO_P00/SAR1
GPIO_P01/SAR2

GPIO_P06
GPIO_P07

GPIO_P13
GPIO_P14

GPIO_P16

DDCROM_SDA

DDCROM_SCL

RST

GA2P/NC/GA4

GA2N/NC/GA5

GA1P/NC/GA2

GA1N/NC/GA3

BA3P/NC/BA6

BA3N/NC/BA7

BA2P/NC/BA4

BA2N/NC/BA5

BA1P/NC/BA2

BA1N/NC/BA3

RB1P/NC/RB2

RB1N/NC/RB3

RB2P/NC/RB4

RB2N/NC/RB5

RB3P/NC/RB6

RB3N/NC/RB7

GB1P/NC/GB2

GB1N/NC/GB3

GB2P/NC/GB4

GB2N/NC/GB5

GB3P/NC/GB6

GB3N/NC/GB7

BB3P/NC/BB6

BB3N/NC/BB7

ESP

OSP
GPO0
GPO1
GPO2
GPO3
GPO4
GPO5
GPO6

GPIO_P02/SAR3

GPIO_P03

GPIO_P22
GPIO_P23

AVDD_PLL

AVDD_MPLL

AVDD_MPLL

VDDP

VDDP

VDDP

VDDC

AVDD_ADC

GND

R618NC/4.7K 1/16W

R45 10K 1/16W

H3

1

R16 NC

Q3

PMBS3906

H12

1

R61 220K 1/16W

C5

0.1uF/16V

TP9

D1

LL4148WP

TP6

R619 39K 1/16W

R3

2K 1/16W

R57 15K 1/16W

R17 NC

Q1

CHT2907

C

B

E

FB3

600 OHM

1 2

R9 NC

R38 22 1/16W

C17

0.1uF/16V

R34 39K 1/16W

C10

0.1uF/16V

C12

0.1uF/16V

TP10

R7 100 1/16W

C11

0.1uF/16V

POL

R27 100 1/16W

R46 47 1/16W

C26

0.1uF

C4

0.1uF/16V

LP

C28

0.1uF/16V

H13

1

H4

1

C13

0.1uF/16V

+

C3

10uF/16V

R1

100 1/16W

R43

NC/4.7K 1/16W

FB6

600 OHM

1 2

TP2

C29

0.1uF

C24 0.047uF

C8

0.1uF/16V

R55 4.7K 1/16W

R35 39K 1/16W

C32

NC/0.1uF/16V

C15

0.1uF/16V

L2

80ohm

TP12

L3

80ohm

TP1

H11

1

Y1

14.318MHZ

R19 10K 1/16W

R60 1K 1/16W

D3

NC/UDZS5.6B

1 2

H5

1

R54 4.7K 1/16W

STH_B

C20 0.047uF

C16

0.1uF/16V

C34

0.1uF/16V

FB5

600 OHM

STH_F

TP8

R11 NC

R26 100 1/16W

C9

0.1uF/16V

R49 47 1/16W

TP4

C19 0.047uF

R25 22 1/16W

C18

0.1uF/16V

L11

80ohm

C7

0.1uF/16V

R30 4.7K 1/16W

L12

80ohm

L10

80ohm

R39 NC/22K 1/16W

R41 10K 1/16W

D4

NC/UDZS5.6B

1 2

U3

AT24C16N-10SC-2.7

1
2
3
45

6

7

8

A0
A1
A2

GNDSDA

SCL

WP

VCC

U2

SST25VH010

1

2

3
4 5

6

7

8

CE#

SDO

WP#
VSS SDI

SCK

HOLD#

VDD

R37 22 1/16W

R28 100 1/16W

R31 4.7K 1/16W

H6

1

FB2

600 OHM

1 2

R21 22 1/16W

TP3

R10 390 1%

C22 0.047uF

L4

80ohm

R40 10K 1/16W

Q5
PMBS3904

FB4

600 OHM

1 2

C6

0.1uF/16V

H7

1

R22 22 1/16W

R33 4.7K 1/16W

H10

1

R42NC/10K 1/16W

R29 100 1/16W

R52 100 1/16W

R20 10K 1/16W

C21 0.047uF

R23 22 1/16W

Q2
NC/PMBS3904

R32 4.7K 1/16W

R44 10K 1/16W

R50 4.7K 1/16W

C33 0.1uF/16V

R18
NC/ 1M 1/16W

R13

10K 1/16W

H8

1

D2

LL4148WP

R58 NC

C30 22pF

R59 4.7K 1/16W

R2

51 1/16W

R53 100 1/16W

C23 0.047uF

R24 22 1/16W

R51 4.7K 1/16W

R14

10K 1/16W

R62

NC/100 1/16W

FB1

1000 OHM

1 2

L6

80ohm

H2

1

L5

80ohm

H9

1

H1

1

L1

80ohm

+

C1

4.7uF/35V

TP7

R47 47 1/16W

R48 47 1/16W

R63 0 1/16W

+

C2
10uF/16V

TP5

R56 4.7K 1/16W

C31 22pF

C25 0.047uF

Q4

PMBS3906

TP11

R15

NC

R8 NC

L8

80ohmL980ohm

R621 100 1/16W

C14

0.1uF/16V

R620 0 1/16W

+

C27

10uF/16V

R12 NC

R6 100 1/16W

R36 4.7K 1/16W

R622 4.7K 1/16W

L7

80ohm

RSDS/LVDS/TTL

STHB,F SWAP 10/06

Del R4 R5 CN1
06/01/06

RB SWAP NP

有和

SWAP

的功能

iris suggestion
2005/01/11

iris suggestion
2005/01/11

Modify 060424

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

45

Model

Title

Date Rev:

ViewSonic Corporation

DC-DC

VDDA

VDD+5

VGH

VDDA

VGL

VGH_M

CPV

IN

VGH_MVGH

VGL

VGH

VGH_M

IN

VGH

IN

CPV

FBP

FBN

FBN

REF

REF
FBP

VGH

C116

0.1uF/25V(0603)

C122

0.1uF(0603)

C127

0.1uF(0603)

C117

1uF(0603)

C10710uF/16V

C10510uF/16V

R107

200K(0402) 1%

R110

22.1K

(0402) 1%

R109

24.9K(0402) 1%

C103

NC

R106 0

R111

3.32K(0402) 1%

D101

SSM5819SPT

1 2

R124

2K(0603) 1%

Q102

MMBT3904

312

C115

0.1uF(0402)

C120

4.7uF/16V

(1206)

D102

BAT54WSPT

2

3

1

C108

0.1uF(0402)

C119

0.22uF/25V

C102

10uF/16V

R108

NC (0603)

R116
0 (0603)

R117
15K (0603)

R104

102K (0402) 1%

R113

20K(0402) 1%

C113

0.1uF(0603)

C126

47pF(0402)

R123

NC(0603)

C125

NC (0603)

D104

BAT54WSPT

2

3

1

R119

1K(0402) 1%

D103

BAT54WSPT

2

3

1

R118

1K

(0402) 1%

U101

MAX1748

1
2
3
4
5
6
7
8 9

10

11

12

13

14

15

16

/RDY
FB
INTG
IN
GND
REF
FBP
FBN /SHDN

DRVN

SUPN

DRVP

SUPP

PGND

LX

TGND

C118

0.1uF(0402)

C123

0.1uF(0603)

U102

KIA3820FK

1
2
3
4 5

6

7

8

VGH
VGH_M
RE
CE VDD

VDPM

GND

VFLK

D105

BAT54WSPT

2

3

1

R122 15K(0402) 1%

C112

0.1uF (0402)

R112

348K(0402) 1%

VGL

L101

LK.CD032.A01

R121

13K (0603)

R105

0 1/16W

C124

0.1uF(0603)

R103

10.7K (0402) 1%

R114 0 1/16W

R101

0 1/16W

Q103 MMBT3906

1

3 2

C1040.1uF(0402)

Q101
AO3404L

G

D

S

C109

470pF/50V

VDDA

R102

NC (0402)

R120

1K(0402) 1%

C110

0.1uF/10V

C114 0.1uF(0402)

C101

10uF/16V

R115

1K (0603)

C111

10uF/16V

C10610uF/16V

VGH

C121

0.1uF(0402)

VDDA(+13.4V)

VGH(23V)

VGL(-10V)

1206

1206

1206

iris suggestion
2005/01/10

iris suggestion
2005/01/10

iris suggestion
2005/01/10

iris suggestion
2005/01/10

iris suggestion
2005/01/12

iris suggestion
2005/01/11

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

46

Model

Title

Date Rev:

ViewSonic Corporation

VGMA

VCOM

VDDA

VDDA

VCC

V[1..7]

V[8..14]

XAO

VGMA2

V1

V7

VGMA9

V3

V12

V8

VGMA6

VGMA6

VGMA13

VGMA2

V14

V10

V5

VGMA13

V11

VGMA9

V4

V5

V1

V3

V6
V7

V4

V2

V14

V11

V9

V13

V8

V10

V12

V2
V6
V9

V13

V5
V6

V12

V2

V9

V3
V4

V10
V11

V7

V8

V14

V1

V13

V5
V6
V7

V8
V9
V10
V11
V12

C239

1uF/16V(0805)

V13
V14

R218

95.3

C201

0.1uF/16V(0402)

R204 10 1/16W(0402)

C216

0.1uF/16V

U201

AAT7203

1
2
3
4
5
6
78

13

14

9

10

12
11

VDD
OUT1
OUT2
OUT3
OUT4

OCOM

GNDGND

IN1

VDD

ICOM

IN4

IN2
IN3

C211

0.1uF/16V

R209

23.2 1%

C208

0.1uF/16V(0402)

R202

1K 1/16W(0603)

R212

56.2

C217

0.1uF/16V

C2321uF/16V(0805)

R219

54.9

C205

0.1uF/16V(0402)

R207 10 1/16W(0603)

C218

0.1uF/16V

C210

0.1uF/16V(0402)

R214

69.8

R217

169

R203 10 1/16W(0402)

C219

0.1uF/16V

R220

57.6

C2381uF/16V(0805)

R210

107

C202

0.1uF/16V(0402)

C2371uF/16V(0805)

U202

G674L240T1U

1
2
3 4

5

RESET
VCC
GND NC

CD

C2301uF/16V(0805)

C220

0.1uF/16V

R216

26.7

C2351uF/16V(0805)

R206 10 1/16W(0402)

R208

22.6K 1/16W(0402)

C2341uF/16V(0805)

R221

182

C2361uF/16V(0805)

C212

0.1uF/16V

R211

178

C2271uF/16V(0805)

C221

0.1uF/16V

C2291uF/16V(0805)

C213

0.1uF/16V

C206

0.1uF/16V(0402)

C2281uF/16V(0805)

VR201

PVZ3K103E01R00

13

2

C2331uF/16V(0805)

C204

10uF/16V(1206)

R213

45.3

C2311uF/16V(0805)

C222

0.1uF/16V

C203

10uF/16V(1206)

R223

20

C2261uF/16V(0805)

C214

0.1uF/16V

R205 10 1/16W(0402)

C223

0.1uF/16V

C207

0.1uF/16V(0402)

R201

34.8k(0402)

R215

162

V1

C209

0.1uF/16V(0402)

C215

0.1uF/16V

C2251uF/16V(0805)

C224

0.1uF/16V

R222

95.3

V2
V3
V4

Layout , U201

時 麻請靠近

iris suggestion 2005/01/10

5pin IC, confirm

原本就是 的 請

iris suggestion
2005/01/10

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

47

Model

Title

Date Rev:

ViewSonic Corporation

X1-X6

3.3V

VDDA

VCOM

VDDA_X

VCOM

VCOM

VCOM

VDDA_X

VCC

VGL

VGH_M

VDDA_X

VCOM

VCOM

VDDA_X

VCOM

VCOM

VCOM

VDDA_X

VCOM

VDDA_X

VCOM

VCOM

VDDA_X

3V3_X

VCC

3V3_X

3V3_X

3V3_X

3V3_X

3V3_X

3V3_X

3V3_X

3V3_X

3V3_X 3V3_X

3V3_X

3V3_X

3V3_X

3V3_X

3V3_X3V3_X

3V3_X

3V3_X

RB[0..5]

RA[0..5]

V[1..7]

V[8..14]

V[1..7]

V[8..14]

CLKAP
CLKAN

CLKBN

CLKBP

OE

XAO

STV1

CPV

LP

POL

DINV

LP

POL

DINV

CLKAN

LP

POL

V[1..7]

DINV

RA[0..5]

V[8..14]

CLKAP

CLKAN

LP

POL

V[1..7]

DINV

RA[0..5]

V[8..14]

CLKAP

LP

DINV

V[1..7]

POL

CLKBN

CLKBP

RB[0..5]

V[8..14]

LP

DINV

CLKBN

V[8..14]

POL

RB[0..5]

V[1..7]

CLKBP

STH_F

STH_B

DINV

BB[0..5] BB[0..5]

GB[0..5]

GA[0..5] GA[0..5]

BA[0..5]

GB[0..5]

GA[0..5]

BA[0..5] BA[0..5]

BB[0..5]

GB[0..5]

RA2

RA4

RA0

RA3

RA1

RA5 RA5

RA1

RA3
RA4

RA2

RA0

RA5

RA1

RA3
RA4

RA2

RA0

BA4

GA4

GA0

BA0

RA1

RA5

GA3

BA1

RA3

GA1

GA5

BA3

BA5

RB0

RB2

RB4

GB2

BB4

GB0

BB0

GB4

BB2

CLKAN

CLKAP

CLKBP

RA4

RA0

RA2

GA2

BA2

GB1

BB1

CLKBN

RB3

BB5

GB5

GB3

BB3

RB1

RB5

V5

V1

V6V6

V4

RB1

V2

V12

RB4

V1

V3

V9

V13

V13

V11

V10

RB1

V11

RB4

V6

V3V3

RB0

V5

V10

V4

V2

RB3

V3

V14

RB4

V9

V5

RB0

V3

V14

V12

V13

V12

V7

V11

RB3

V1

RB2

V10

V10

RB3

RB5

V8

V8

V12

V9

V7

V6

V4

V2

V13

V6

V1

RB5

V12

V9

V1

V4

V2

V14

V3

RB1

V1

V6

V14

V5

RB0

V11

V8

V5

V4

RB5

V13

V8

V12

V7

V5

V10

V2

V14

RB2 RB2

V7

V11V11

V8V8

V9

V14

V7

V13

V9

V7

V10

V4

V2

BA0

GA0

GA3

BA3

GA4

GB3

BA1

GA5

BB1

BA4

BA1
BA2 BA2

GA1
GA2

BA2

GA3 GA3

GB1

GA5 GA5

BA1

GA0

BB2

GB0

BA0

GA0
GA1

BA0

BA3

GA4 GA4

GB4

GA1

BA3

BB4

GB2

BA4

BA5 BA5

BB0

GB5

BB3

BB5

GA2 GA2

BA4
BA5

GB0

GB4

BB2

BB5

BB3

GB2

GB5

GB3

BB1

GB1

BB4

BB0

GB0

GB4

BB2

BB5

BB3

GB2

GB5

GB3

BB1

GB1

BB4

BB0

6TP2C

1TP2B

BB2

3S1

GA0

C320

0.1uF

/16V(0402)

4TP1B

OE1

C318

10 uF

/16V

VCOM

2S720

3TP2C

RB5

L302
B0603/300

R316 100 1/16W

RA5

C304 0.1uF/16V

5TP2C

6TP2A

CLKAP

6S720

R323 100 1/16W

6TP2B

1TP2A

X305

X_IC

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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

TP1A
TP1B
TP1C
XAO
OE
CPV
STV
VSS
VDD
VGL
VGH
COM1
COM1
S1
RPI1
RPO1
NC
NC
VSSD
VDDD
EIO1
D00N
D00P
D01N
D01P
D02N
D02P
POL20
POL
TP1
CLKN
CLKP
VSSD
GMA1
GMA2
GMA3
GMA4
GMA5
GMA6
GMA7
NC
NC
GNDA
GNDA
VDDA
VDDA
GMA8
GMA9
GMA10
GMA11
GMA12
GMA13
GMA14
NC
NC
VDDD
NC
D10N
D10P
D11N
D11P
D12N
D12P
D20N
D20P
D21N
D21P
D22N
D22P
EIO2
VDDD
VSSD
NC
NC
S720
COM2
COM2
TP2C
TP2B
TP2A

GA4

GB2

VGH_M

R315 100 1/16W

3RPI

6RPI

CLKBN

R317 100 1/16W

R310 100 1/16W

R322 100 1/16W

R311 100 1/16W

C316

0.1uF

/16V

1TP1C

2TP2B

4TP2C

GB4

1TP2C

C325

0.1uF

/16V(0402)

C319

0.1uF

/16V

C309

10 uF

/16V

C314

0.1uF

/16V

R308 100 1/16W

R326 100 1/16W

5RPI

4TP1A

5S720

BA3

4TP2A

1TP1B

L301
B0603/220

X303

X_IC

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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

TP1A
TP1B
TP1C
XAO
OE
CPV
STV
VSS
VDD
VGL
VGH
COM1
COM1
S1
RPI1
RPO1
NC
NC
VSSD
VDDD
EIO1
D00N
D00P
D01N
D01P
D02N
D02P
POL20
POL
TP1
CLKN
CLKP
VSSD
GMA1
GMA2
GMA3
GMA4
GMA5
GMA6
GMA7
NC
NC
GNDA
GNDA
VDDA
VDDA
GMA8
GMA9
GMA10
GMA11
GMA12
GMA13
GMA14
NC
NC
VDDD
NC
D10N
D10P
D11N
D11P
D12N
D12P
D20N
D20P
D21N
D21P
D22N
D22P
EIO2
VDDD
VSSD
NC
NC
S720
COM2
COM2
TP2C
TP2B
TP2A

C322

0.1uF

/16V(0402)

GB0

1TP1A

C313

0.1uF

/16V

GB5

R309 100 1/16W

C308

0.1uF

/16V

GA3

C323

0.1uF

/16V(0402)

R320 100 1/16W

BA2

3TP2A

3TP1C

RA4

RB1

6TP1C

RB2

3TP1A

2S1

2TP2C

BA0

GA5

R319 100 1/16W

C306

0.1uF

/16V

5TP1B

1RPO

3TP1B

BB3

CLKBP

4S720

2RPI

3RPO

RA2

C326

0.1uF/16V(0402)

BA4

GA1

R305
NC(0402)

1RPI

5S1

C331

0.1uF/16V(0402)

C324

0.1uF

/16V(0402)

X301

X_IC

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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

TP1A
TP1B
TP1C
XAO
OE
CPV
STV
VSS
VDD
VGL
VGH
COM1
COM1
S1
RPI1
RPO1
NC
NC
VSSD
VDDD
EIO1
D00N
D00P
D01N
D01P
D02N
D02P
POL20
POL
TP1
CLKN
CLKP
VSSD
GMA1
GMA2
GMA3
GMA4
GMA5
GMA6
GMA7
NC
NC
GNDA
GNDA
VDDA
VDDA
GMA8
GMA9
GMA10
GMA11
GMA12
GMA13
GMA14
NC
NC
VDDD
NC
D10N
D10P
D11N
D11P
D12N
D12P
D20N
D20P
D21N
D21P
D22N
D22P
EIO2
VDDD
VSSD
NC
NC
S720
COM2
COM2
TP2C
TP2B
TP2A

GB1

C307

10 uF

/16V

5TP1A

R312 100 1/16W

VDDA_X

C303 0.1uF/16V

4TP2B

BB0

RA0

C311

10 uF

/16V

1S1

6S1

STV1

3S720

RA3

3V3_X

5TP2B

R324 100 1/16W

X306

X_IC

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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

TP1A
TP1B
TP1C
XAO
OE
CPV
STV
VSS
VDD
VGL
VGH
COM1
COM1
S1
RPI1
RPO1
NC
NC
VSSD
VDDD
EIO1
D00N
D00P
D01N
D01P
D02N
D02P
POL20
POL
TP1
CLKN
CLKP
VSSD
GMA1
GMA2
GMA3
GMA4
GMA5
GMA6
GMA7
NC
NC
GNDA
GNDA
VDDA
VDDA
GMA8
GMA9
GMA10
GMA11
GMA12
GMA13
GMA14
NC
NC
VDDD
NC
D10N
D10P
D11N
D11P
D12N
D12P
D20N
D20P
D21N
D21P
D22N
D22P
EIO2
VDDD
VSSD
NC
NC
S720
COM2
COM2
TP2C
TP2B
TP2A

BB1

5TP2A

C321

0.1uF

/16V(0402)

C317

0.1uF

/16V

C310

0.1uF

/16V

BB4

STH3_F

C305

10 uF

/16V

4S1

R307 100 1/16W

X302

X_IC

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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

TP1A
TP1B
TP1C
XAO
OE
CPV
STV
VSS
VDD
VGL
VGH
COM1
COM1
S1
RPI1
RPO1
NC
NC
VSSD
VDDD
EIO1
D00N
D00P
D01N
D01P
D02N
D02P
POL20
POL
TP1
CLKN
CLKP
VSSD
GMA1
GMA2
GMA3
GMA4
GMA5
GMA6
GMA7
NC
NC
GNDA
GNDA
VDDA
VDDA
GMA8
GMA9
GMA10
GMA11
GMA12
GMA13
GMA14
NC
NC
VDDD
NC
D10N
D10P
D11N
D11P
D12N
D12P
D20N
D20P
D21N
D21P
D22N
D22P
EIO2
VDDD
VSSD
NC
NC
S720
COM2
COM2
TP2C
TP2B
TP2A

3TP2B

5RPO

CLKAN

6TP1A

GB3

RB0

R306

3.3K 1/16W(0402)

4RPI

2TP2A

2TP1C

C315

0.1uF

/16V

6RPO

BA1

C302

0.1uF

/16V

C327

0.1uF/16V(0402)

1S720

R314 100 1/16W

X304

X_IC

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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80

TP1A
TP1B
TP1C
XAO
OE
CPV
STV
VSS
VDD
VGL
VGH
COM1
COM1
S1
RPI1
RPO1
NC
NC
VSSD
VDDD
EIO1
D00N
D00P
D01N
D01P
D02N
D02P
POL20
POL
TP1
CLKN
CLKP
VSSD
GMA1
GMA2
GMA3
GMA4
GMA5
GMA6
GMA7
NC
NC
GNDA
GNDA
VDDA
VDDA
GMA8
GMA9
GMA10
GMA11
GMA12
GMA13
GMA14
NC
NC
VDDD
NC
D10N
D10P
D11N
D11P
D12N
D12P
D20N
D20P
D21N
D21P
D22N
D22P
EIO2
VDDD
VSSD
NC
NC
S720
COM2
COM2
TP2C
TP2B
TP2A

STH2_F

C301 0.1uF/16V

C328

0.1uF

/16V(0402)

BB5

2TP1A
2TP1B

6TP1B

BA5

RB4

STH3_BSTH2_B

2RPO

XAO

4TP1C

CPV1

GA2

RB3

C329

0.1uF

/16V(0402)

C330

0.1uF/16V(0402)

R325 100 1/16W

5TP1C

R318 100 1/16W

RA1

C312

10 uF

/16V

4RPO

R313 100 1/16W

VCC

R321 100 1/16W

Closed to X1~X6

Closed to X1~X6

0402 TYPE

0402 TYPE

X304-X306
B Port

X304-X306
B Port

X301-X303
A Port

X301-X303
A Port

0402 TYPE

0402 TYPE

iris suggestion
2005/01/10

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

48

Model

Title

Date Rev:

ViewSonic Corporation

POWER

3.3V5V

5V

5V

5V

VDD+5

5V

VCC

VDD+5

5V

5V

5V

VOLUME

PWR_LEDG

PWR_LEDB

PWR_EN

AMP_MUTE

AMP_STBY

BL_EN

BL_BRIGHT

SW4_VOL+
SW5_MENU

PWR

SW1_AUTO
SW2_VOL-

BK_EN

VOLUME

LED_G

LED_B

SW3_POWER

STBY

MUTE

BL_ON/OFF

BL_ADJBK_PWM

STBY

MUTE

BL_ON/OFF

BL_ADJ

SW4_VOL+
SW5_MENU

SW1_AUTO
SW2_VOL-

R408

10K 1/16W

C408 0.1uF/16V

U402

G1117-33

3

1

2

4

VIN

GND

VOUT

VOUT

Q403
PMBS3904

R427 4.7K 1/16W

C404

0.1uF/16V

R417 1K 1/ 16W

C416

0.1uF/16V

D4023.6V

R415

4.7K 1/16W

C422

10uF/16V

C403

0.1uF

C406 0.1uF/16V

U401

AIC1084-33PM

3

1

2

VIN

GND

VOUT

C418

0.1uF/16V

R403 100 1/16W

R412

NC

C411 0.1uF/16V

Q405

NC

R410
NC

C407 0.1uF/16V

C612 0.1uF/16V

C613 0.1uF/16V

VDD+5

5V

3_3V

R418 1K 1/ 16W

+

C405

100uF/16V

C420

0.1uF/16V

C413

10uF/16V

R425
0 1/16W

C415

0.1uF/16V

R424
0 1/16W

R429
10K 1/16W

R428
NC

C414

10uF/16V

R411 4.7K 1/16W

R407

0 1/16W

R406 22 1/16W

C410 0.1uF/16V

Q402
PMBS3904

R404 47 1/16W

+

C402
47uF/16V

R420
NC

R426 NC

R405 22 1/16W

C421

0.1uF/16V

R413 4.7K 1/16W

Q401
NC

Q406
PMBS3904

R422

10K 1/16W

Q404
AO3401

G

D

S

R416 NC

R409
NC

R423

51K 1/16W

C409 0.1uF/16V

R419 4.7K 1/16W

C417

0.1uF/16V

CN401

CONN

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

D4013.6V

C412 0.1uF/16V

C419

1uF/16V

R421

4.7K 1/16W

C401

0.1uF

R414 NC

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Model

Title

Date Rev:

ViewSonic Corporation

VGA INPUT

DDC_VDD

DDC_VDD

5V

VGA-VDD

5V

VGA_DET

DDC_SDA

DDC_SCL

B_IN-

R_IN+

B_IN+

R_IN-

G_IN-

G_IN+

SOGI

DDC_WP

VSI

HSI

DB_R+

DB_B+

DB_G+

DDC_SCL

VGA_CONN

DB_B-

DDC_SCL

DDC_SDA

24C02_WP

DDC_SDA

VGA_HS

VGA_VS

DB_G-

DB_R-

DB_B+

DDC_VDD

VGA_HS

DB_R+

DB_R-

DB_G+

VGA_VS

DDC_SDA

VGA_CONN

DB_G-

DDC_SCL

DB_B-

R504

75 1/16W

C508

220pF

D511

BAV99

3

1

2

R506 100 1/16W

FB503

120ohm

C510
NC

R512

NC/4.7K 1/16W

D509UDZS5.6B

1 2

R519 100 1/16W

U501
AT24C02

1
2
3
4 5

6

7

8

A0
A1
A2
GND SDA

SCLK

WP

VCC

R507 56 1/16W

R517

4.7K 1/16W

D510UDZS5.6B

1 2

R516 1K 1/16W

R509

4.7K 1/16W

CN501

CONN

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

R513

2.2K 1/16W

FB501

0 ohm

R502 56 1/16W

R520 56 1/16W

FB502

0 ohm

D512
UDZS5.6B

1 2

D508
BAV70

C504

0.22uF
D507

BAV99

3

1

2

D501

BAV99

3

1

2

FB504

0 ohm

C511

0.1uF

R501

75 1/16W

R508

4.7K 1/16W

D505
UDZS5.6B

1 2

D503
UDZS5.6B

1 2

R515 1K 1/16W

C503

0.1uF

R505 100 1/16W

R518

75 1/16W

D504
UDZS5.6B

1 2

D502

UDZS5.

6B

1 2

R511 100 1/16W

C502
NC

R521 100 1/16W

R503
1K 1/16W

R510 100 1/16W

D506
NC/UDZS5.6B

1 2

C507

33pF

R514

2.2K 1/16W

C506

0.1uF/16V

C509

0.22uF

C501

0.22uF

C505
NC

R522 0 1/16W

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Model

Title

Date Rev:

ViewSonic Corporation

DVI-IN

DVI5V

DVI5V

5V

5V

DVI_R-

DVI_SCL

DVI_G-

DVI_B-

DVI_B+

DVI_SDA

DVI_CLK-

DVI_G+

DVI_R+

DVI_CLK+

DVI_DET

DCLK+

DVI5V
HPD

SCL_DVI

DCLK+

SCL_DVI
SDA_DVI

DCLK-

DAT0-

DVI5V
HPD

DAT1+

SDA_DVI

DCLK- DAT0+

DAT2-

DAT1+

DAT2+

DAT2-

DAT1-

DAT2+

DAT0-

DAT1-

DAT0+

C602

0.1uF

D608
BAV99

3

1

2

C605

NC/0.1uF

C608

NC/0.1uF

D605
BAV99

3

1

2

R603NC

CN601

CONN

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

D603
MLL5232B 5.6V

R611

10K

R604 NC

R613 10

C610

NC/0.1uF

D601
MLL5232B 5.6V

D609
BAV99

3

1

2

C607

NC/0.1uF

R609 10

R602 100

D610
BAV99

3

1

2

D607
BAV99

3

1

2

R601 100

R607 10

C611

0.1uF

R615

4.7K 1/16W

R610 10

D612
BAV99

3

1

2

U601

AT24C02N-10SC

1
2
3
45

6

7

8

A0
A1
A2

GNDSDA

SCL

WP

VCC

C604

NC/0.1uF

C603

NC/0.1uF

C601

0.1uF

C606

NC/0.1uF

D602
MLL5232B 5.6V

D611
BAV99

3

1

2

D613

UDZS5.6B

D604
BAT54C-GS08

3

1

2

R608 10

R612

10K

R605 10

R614 10

R606 10

D606
BAV99

3

1

2

C609

NC/0.1uF

R616 NC
R617 NC

DVI5V

TOP SIDE

11. PCB Layout Diagrams

ViewSonic Corporation

Confidential - Do Not Copy VX1935wm-1

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BOTTOM

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SILKSCREEN-BOTTOM

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SILKSCREEN-TOP

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MASK-TOP

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

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MASK-BOTTOM

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

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SMD-TOP

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

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DRILL DRAWING

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ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

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ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1

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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
([e-mail])