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Service Manual
ViewSonic VX2739wm-1
VX2739wm-CN
Model No. VS12843
27” Color TFT LCD Display
(VX2739wm-1_VX2739wm-CN_SM Rev. 1a May. 2010)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright
Copyright © 2010 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.
Product disposal at end of product life
The lamp in this product contains mercury. Please dispose of in accordance with local, state or federal laws.
Revision History
Revision |
SM Editing Date |
ECR Number |
Description of Changes |
Editor |
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1a |
5/7/2010 |
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Initial Release |
Eden Chang |
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VX2739wm-1 |
ViewSonic Corporation |
i CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
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TABLE OF CONTENTS |
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1. |
Precautions and Safety Notices ....................................................................................... |
4 |
2. |
Specification ..................................................................................................................... |
8 |
3. |
Front Panel Function Control Description ................................................................... |
17 |
4. |
Circuit Description........................................................................................................... |
20 |
5. Adjusting Procedure ....................................................................................................... |
22 |
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6. |
Trouble Shooting Flow Chart.......................................................................................... |
68 |
7. |
Block Diagrams .............................................................................................................. |
74 |
8. |
Schematic Diagrams ...................................................................................................... |
75 |
9. PCB Layout Diagrams ................................................................................................... |
78 |
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10. Exploded Diagram And Spare Parts List ..................................................................... |
79 |
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11. Recommended Spare Parts List ................................................................................. |
80 |
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VX2739wm-1 |
ViewSonic Corporation |
ii CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
1. Precautions and Safety Notices
Safety Instructions
The symbol is intended to alert the user to presence of un-insulated “Hazardous Voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
This symbol is intended to alert the user that improper use of the product may result in product malfunction. The user should pay attention to avoid accidents or unnecessary problems.
Wet Location
Apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.
Outdoor Use
WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
Disconnect Device - The Mains Plug or An Appliance Coupler
The mains plug or an appliance coupler is used as the disconnect device for disconnection from the mains, the disconnect device shall remain readily operable.
Safety
Operate the Monitor on 100V and 120 V AC only.
Use the AC power cord specified by ViewSonic and suitable for the voltage where you use it.
The plug is designed, for safety purposes, to fit into the wall outlet only one way. If you are unable to insert the plug fully into the outlet, contact your dealer.
If any liquid or solid object should fall inside the cabinet, stop operating, unplug the Monitor immediately and have it checked by qualified service technician.
If you will not be using the Monitor for a long time, disconnect the power by pulling
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VX2739wm-1 |
ViewSonic Corporation |
4 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
the plug itself. Do not pull on the cord.
Carrying The LCD Monitor
To prevent dropping the Monitor and causing serious injury, you must follow these guidelines:
Disconnect all cables before carrying the Monitor.
Carrying the large size Monitor requires at least two or three people.
When you carry the Monitor, place your hands as illustrated and hold it securely. Do not put stress on the LCD panel and the frame around the screen.
When carrying the Monitor, do not subject it to shocks, vibration, or excessive force.
When lifting or moving the Monitor, hold it securely from the bottom. Place your palm directly under the panel.
Installed on the wall
Installed with stand
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VX2739wm-1 |
ViewSonic Corporation |
5 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
Leave at least this space around the set. Do not install the Monitor set as follows: Air circulation is blocked.
Broken pieces
Do not throw anything at the LCD.
Doing so may break the screen glass and cause serious injury.
If the surface of the LCD cracks, unplug the AC power cord before touching the LCD. Otherwise electric shock may result.
Handling of broken glass and liquid crystal leakage
If the LCD panel gets damaged, crystalline liquid leakage may occur, or scattered broken glass may result.
Do not touch broken glass or crystalline liquid which is toxic, with bare hands as cuts, poisoning or skin irritation may occur.
Also do not glass fragments or leaked crystalline liquid get into your eyes or mouth. Should either contacted your eyes or mouth, rinse the contacted area thoroughly with water and consult your doctor.
Note
This television includes a QAM demodulator, which should allow you to receive unscrambled digital cable television programming via subscription service to a cable service provider.
The type of programming and signal provided by your cable service provider will affect the availability of digital cable television programming in your area.
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VX2739wm-1 |
ViewSonic Corporation |
6 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
2. Product Specification
2.1 Product definition
Product Name |
ViewSonic VX2739WM |
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Model Number |
VS12843 |
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English |
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French |
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German |
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Spanish |
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Italian |
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OSD Languages |
Finnish |
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Russian |
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Japanese |
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Korean |
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Traditional Chinese |
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Simplified Chinese |
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TFT LCD Panel and Model # |
1st source : CMO M270H1-L01 |
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Scalar |
TSUMO88GDI-LF-1 |
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Input Signal |
D-Sub /DVI/HDMI |
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Sync Compatibility |
Separate Sync / Composite Sync / SOG |
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Adapter |
Internal Power Board |
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Power Cable (Refer to APPENDIX B) |
Yes |
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15 pin mini D-SUB Analog Cable (1.8 m, |
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black), with PC 2001. |
Yes |
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(Detached cable; refer the Appendix A) |
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DVI-D Cable(1.8m, black) with PC 2001 |
Yes |
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(refer to Appendix A) |
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Audio Cable(1.8m, black) with PC 2001 |
Yes |
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MIC Cable(1.8m, black) with PC 2001 |
No |
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USB Cable (V2.0) |
Yes |
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(1.8m, black) with PC 2001 |
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VX2739wm-1 |
ViewSonic Corporation |
7 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
2.2 Specification |
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Dimensions (with |
647 mm (W) x 490 mm (H) x 250 mm (D) |
stand) |
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Physical(W)x(H)x(D) |
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Weight |
6.8 kg |
LCD |
27" Color active matrix TFT LCD |
Pane |
CMO M270H1-L01 |
Contrast Ratio |
1200 :1 (Typ.) |
Display area |
597.89 mm (H) x 336.31 mm (V) |
Pixel Pitch |
0.3114 mm (H) x 0.3114 mm (V) pixel |
Native Resolution |
1920 x 1080 |
Speaker Output |
2W x 2 |
2.3 Front View and Rear View
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Name |
Photo |
Materials |
Piece |
Texture |
Color Scheme |
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o. |
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1 |
Front |
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ABS |
1 |
POLISH # |
Viewsonic black |
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8000 |
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Mold-Tech |
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MT-11020 |
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2 |
Back |
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ABS |
1 |
(Logo is |
Viewsonic black |
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POLISH # |
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8000) |
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VX2739wm-1 |
ViewSonic Corporation |
8 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
3 |
Power |
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ABS |
1 |
electroplate |
silver |
button ring |
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4 |
Neck |
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ABS |
1 |
POLISH # |
Viewsonic black |
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8000 |
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5 |
Key button |
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ABS |
1 |
Mold-Tech |
Viewsonic black |
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MT-11010 |
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6 |
base |
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ABS |
1 |
POLISH # |
Viewsonic black |
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8000 |
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7 |
base_ring |
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ABS |
1 |
electroplate |
silver |
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1. Black by |
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painting at |
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core-side |
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Transluce |
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surface. |
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Power |
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POLISH # |
2.Power icon by |
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nt |
1 |
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button |
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8000 |
Lacer-engravin |
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PC |
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g and then |
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painting |
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pantone # 427C |
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3. Blue LED. |
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VX2739wm-1 |
ViewSonic Corporation |
9 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
** ViewSonic Black_matt
L* |
a* |
b* |
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27.47 |
-0.06 |
-0.8 |
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*CIE1976; Polish level = 1200; Follow the Equipment in ViewSonic Lab
*1. The reference for the cabinet components is the color chip provided by ViewSonic.
*2. The color difference between any two panel head cabinet components shall be ∆E <0.8, in the 1976 CIE L*a*b Colorspace.
*3. The color difference between any two base cabinet components shall be ∆E <0.8, in the 1976 CIE L*a*b Colorspace.
2.4 Audio Interface (Speaker Specification)
Line input signal |
1.0 |
Vrms @1kHz |
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Line input impedance |
10 Kohm |
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Maximum Amp power output (Watt) |
2.4 W @ SPKVDD=5V 4OHM |
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Amp -THD |
< 10 % THD @1kHz |
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Speaker Power rating(Ω/Watt) |
4Ω/ 2 W |
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Signal to Noise Ratio |
50 db |
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Frequency response |
Fo – 20kHz |
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SPL. |
91 dB (at 0.1w/0.1m) |
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FO |
820 |
Hz |
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Line input connection |
1. 3.5 mm stereo jack |
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2. HDMI |
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There should be no audible vibration |
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Vibration |
resonance at volume=100% & any |
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Freq. |
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Screen image |
There should be no affect on the screen |
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image stability under any conditions |
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Connector PC99 requirement Audio in |
Lime Green pantone # 577C |
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Cable type / length |
3.5mm stereo cable / 1.8m length |
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Audio DPMS |
Speakers stay off when the rest of the |
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monitor is in power saving |
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VX2739wm-1 |
ViewSonic Corporation |
10 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
2.5 Electrical Requirement
Horizontal / Vertical Frequency
Horizontal Frequency |
24 – 83 |
KHZ |
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Vertical Refresh Rate |
50 – 76 |
HZ |
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Maximum Pixel Clock |
Analog : 210 MHz |
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Digital : 180 MHz |
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Sync Polarity |
Independent of sync polarity. |
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Support Timing Table
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Analog |
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TMDSDigital |
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Item |
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Timing |
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Separated |
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Composite |
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SOG |
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Remark |
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640 x 350 |
@ |
70 Hz, |
31.5 |
KHz |
v |
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v |
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v |
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v |
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DMT. |
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For Separated SOG and |
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Composite sync, switch |
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1. |
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640x350@70,640x400@70, |
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and720x400@70 by [1]+[2] |
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short cut key ( primary = |
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720x400@70) |
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640 x 400 |
@ |
60 Hz, |
31.5 |
KHz |
v |
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v |
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v |
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v |
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DMT |
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For Separate, Composite |
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and SOG sync, switch |
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2. |
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640x400@60Hz and |
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640x480@60Hz by [1]+[2] |
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short cut key (primary = |
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640x480@60Hz) |
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640 x 400 |
@ |
70 Hz, |
31.5 |
KHz |
v |
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v |
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v |
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DMT |
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For Separated SOG and |
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Composite sync, switch |
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3. |
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640x350@70,640x400@70, |
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and720x400@70 by [1]+[2] |
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short cut key ( primary = |
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720x400@70) |
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ViewSonic Corporation |
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CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
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4. |
640 x 480 |
@ |
50 Hz, |
24.7 |
KHz |
v |
v |
v |
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CVT |
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640 x 480 |
@ |
60 Hz, |
31.5 |
KHz |
v |
v |
v |
v |
DMT |
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For Separate, Composite |
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and SOG sync, switch |
5. |
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640x400@60Hz and |
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640x480@60Hz by [1]+[2] |
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short cut key (primary = |
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640x480@60Hz) |
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6. |
640 x 480 |
@ |
67 Hz, |
35 |
KHz |
v |
v |
v |
v |
For MAC |
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7. |
640 x 480 |
@ |
72 Hz, |
37.9 |
KHz |
v |
v |
v |
v |
DMT |
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8. |
640 x 480 |
@ |
75 Hz, |
37.5 |
KHz |
v |
v |
v |
v |
DMT |
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720 x 400 |
@ |
70 Hz, |
31.5 |
KHz |
v |
v |
v |
v |
DMT |
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For Separated SOG and |
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Composite sync, switch |
9. |
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640x350@70,640x400@70, |
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and720x400@70 by [1]+[2] |
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short cut key ( primary = |
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720x400@70). |
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720 x 480 |
@ |
60 Hz, |
31.5 |
KHz |
v |
v |
v |
v |
DTV, For Analog sync, the |
10. |
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information OSD shows |
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640x480 |
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11. |
720 x 576 |
@ |
50 Hz, |
31.3 |
KHz |
v |
v |
v |
v |
DTV |
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12. |
800 x 600 |
@ |
56 Hz, |
35.2 |
KHz |
v |
v |
v |
v |
DMT |
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13. |
800 x 600 |
@ |
60 Hz, |
37.9 |
KHz |
v |
v |
v |
v |
DMT |
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14. |
800 x 600 |
@ |
72 Hz, |
48.1 |
KHz |
v |
v |
v |
v |
DMT |
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15. |
800 x 600 |
@ |
75 Hz, |
46.9 |
KHz |
v |
v |
v |
v |
DMT |
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16. |
832 x 624 |
@ |
75 Hz, |
49.7 |
KHz |
v |
v |
v |
v |
MAC |
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1024 x 768 |
@ |
50 Hz, |
39.6 |
KHz |
v |
v |
v |
v |
CVT |
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For Separated and |
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Composite sync, Switch |
17. |
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1024x768@50Hz and |
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1280x768@50Hz by [1]+[2] |
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short cut key (primary = |
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1024x768@50Hz) |
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18. |
1024 x 768 |
@ |
60 Hz, |
48.4 |
KHz |
v |
v |
v |
v |
DMT |
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19. |
1024 x 768 |
@ |
70 Hz, |
56.5 |
KHz |
v |
v |
v |
v |
DMT |
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20. |
1024 x 768 |
@ |
72 Hz, |
58.1 |
KHz |
v |
v |
v |
v |
DMT |
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21. |
1024 x 768 |
@ |
75 Hz, |
60 |
KHz |
v |
v |
v |
v |
DMT; |
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VX2739wm-1 |
ViewSonic Corporation |
12 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
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For Separated , Composite |
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and SOG, |
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Switch 1280x768@75Hz |
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and 1024x768@75Hz by |
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[1]+[2] short cut key |
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(primary = |
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1280x768@75Hz) |
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22. |
1024 x 768 |
@ |
75 Hz, |
60.2 |
KHz |
v |
v |
v |
v |
For MAC |
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23. |
1152 x 864 |
@ |
75 Hz, |
67.5 |
KHz |
v |
v |
v |
v |
DMT |
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24. |
1152 x 870 |
@ |
75 Hz, |
68.7 |
KHz |
v |
v |
v |
v |
For MAC |
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25. |
1152 x 900 |
@ |
67 Hz, |
62.5 |
KHz |
v |
v |
v |
v |
For SUN |
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26. |
1280 x 720 |
@ |
50 Hz, |
37.5 |
KHz |
v |
v |
v |
v |
DTV |
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27. |
1280 x 720 |
@ |
60 Hz, |
45 |
KHz |
v |
v |
v |
v |
DTV |
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1280 x 768 |
@ |
50 Hz, |
39.6 |
KHz |
v |
v |
v |
v |
DMT |
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For Separated and |
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Composite sync, Switch |
28. |
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1024x768@50Hz and |
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1280x768@50Hz by [1]+[2] |
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short cut key (primary = |
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1024x768@50Hz) |
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1280 x 768 |
@ |
60 Hz, |
47.8 |
KHz |
v |
v |
v |
v |
DMT; |
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For Composite and SOG, |
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Switch 1280x768@60Hz |
29. |
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and 1360x768@60Hz by |
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[1]+[2] short cut key |
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(primary = |
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1280x768@60Hz) |
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1280 x 768 |
@ |
75 Hz, |
60.3 |
KHz |
v |
v |
v |
v |
DMT; |
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For Separated , Composite |
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and SOG, |
30. |
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Switch 1280x768@75Hz |
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and 1024x768@75Hz by |
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[1]+[2] short cut key |
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(primary = |
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1280x768@75Hz) |
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31. |
1280 x 800 |
@ |
60 Hz, |
49.7 |
KHz |
v |
v |
v |
v |
DMT |
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32. |
1280 x 800 |
@ |
75 Hz, |
62.8 KHz |
v |
v |
v |
v |
DMT |
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33. |
1280 x 960 |
@ |
50 Hz, |
49.4 |
KHz |
v |
v |
v |
v |
DMT |
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|
VX2739wm-1 |
ViewSonic Corporation |
13 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
34. |
1280 x 960 |
@ |
60 Hz, |
60.0 |
KHz |
v |
v |
v |
v |
DMT |
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35. |
1280 x 960 |
@ |
75 Hz, |
75.2 |
KHz |
v |
v |
v |
v |
DMT |
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36. |
1280 x 1024 @ |
50 Hz, |
52.7 |
KHz |
v |
v |
v |
v |
DMT |
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37. |
1280 x 1024 @ |
60 Hz, |
64 |
KHz |
v |
v |
v |
v |
DMT |
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38. |
1280 x 1024 @ |
75 Hz, |
80 |
KHz |
v |
v |
v |
v |
DMT |
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1366 x 768 |
@ |
60 Hz, |
47.7 |
KHz |
v |
v |
v |
v |
DMT |
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For Composite and SOG, |
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Switch 1280x768@60Hz |
39. |
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and 1360x768@60Hz by |
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[1]+[2] short cut key |
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(primary = |
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1280x768@60Hz) |
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40. |
1440 x 900 |
@ |
60 Hz |
55.9 |
KHz |
v |
v |
v |
v |
DMT |
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41. |
1440 x 900 |
@ |
75 Hz |
70.6 |
KHz |
v |
v |
v |
v |
DMT |
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1400 x 1050 @ |
60 Hz |
65.3 |
KHz |
v |
v |
v |
v |
DMT; |
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For Separated , Composite |
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and SOG, |
42. |
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Switch 1400x1050@60Hz |
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and 1680x1050@60Hz by |
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[1]+[2] short cut key |
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(primary = |
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1680x1050@60Hz) |
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43. |
1400 x 1050 @ |
75 Hz |
82.3 |
KHz |
v |
v |
v |
v |
DMT |
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44. |
1600 x 1200 @ |
60 Hz |
75.0 |
KHz |
v |
v |
v |
v |
DMT |
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45. |
1680 x 1050 @ |
60 Hz |
64.7 |
KHz |
v |
v |
v |
v |
DMT |
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1680 x 1050 @ |
60 Hz |
65.3 |
KHz |
v |
v |
v |
v |
DMT; |
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For Separated , Composite |
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and SOG, |
46. |
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Switch 1400x1050@60Hz |
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and 1680x1050@60Hz by |
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[1]+[2] short cut key |
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(primary = |
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1680x1050@60Hz) |
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47. |
1920x1080 |
@ |
60 Hz |
67.5 |
KHz |
v |
v |
v |
v |
DMT |
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48. |
480i |
@ |
60 Hz |
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9 |
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49. |
480p |
@ |
60 Hz |
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9 |
9 |
9 |
9 |
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50. |
576i |
@ |
50 Hz |
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9 |
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51. |
576p |
@ |
50 Hz |
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9 |
9 |
9 |
9 |
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|
VX2739wm-1 |
ViewSonic Corporation |
14 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
52. |
720p |
@ |
50 Hz |
9 |
9 |
9 |
9 |
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53. |
720p |
@ |
60 Hz |
9 |
9 |
9 |
9 |
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54. |
1080i |
@ |
50 Hz |
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9 |
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55. |
1080i |
@ |
60 Hz |
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9 |
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56. |
1080p |
@ |
50 Hz |
9 |
9 |
9 |
9 |
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57. |
1080p |
@ |
60 Hz |
9 |
9 |
9 |
9 |
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*1. Tolerance ±2KHz. (if no over lapping issue)
*2. Any timing not in the list, it should display as normal or show on “OUT OF RANGE” OSD message without blanking
|
VX2739wm-1 |
ViewSonic Corporation |
15 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
3. Front Panel Function Control Description
3.1 Front Panel Hardware Controls
Power Switch |
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AC Power Switch on the back cover |
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Soft Power Switch on the front bezel |
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Power LED (Front Head) |
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Blue – ON |
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Amber – Active Off |
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Dark = Soft Power Switch OFF |
|
Front Panel Controls (Head) |
[ ] Power |
||
[ 1 ] [ 2 ] [ ] [▲] [▼] |
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[ 1 ] Button 1 |
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[ 2 ] Button 2 |
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[▲] Up arrow button |
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[▼] Down arrow button |
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Note: Power Button, Button 1 and Button 2 |
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must be one-shot logic operation. (i.e. there |
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should be no cycling) |
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Reaction Time |
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OSD must fully appear within 0.5s after |
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pushing Button 1 |
|
3.2 Short Cuts Function from the button |
|||
[1] |
Main Menu |
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(refer to segment 4-6-3) |
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[2] |
Input toggle (Analog or DVI or HDMI; refer to refer to |
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EDID Text) |
|
|
[▼] |
To immediately activate Audio Adjust menu. |
|
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[▲] |
To immediately activate Contrast / Brightness OSD |
|
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Menu. |
|
|
[▼]+ [▲] |
1. In the Audio mode, recall both of Volume and Mute |
|
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to default without OSD message.( Under Volume |
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adjust sub-menu, recall Volume to default without |
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OSD message.) |
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2. In the BT / CR mode, recall both Contrast and |
|
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Brightness to default in its menu without OSD |
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message. (Under Contrast or Brightness adjust |
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sub-menu, recall Contrast or Brightness to its default |
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without OSD message.) |
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* While OSD menu off, recall CR/ BT/ Audio volume |
|
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|
VX2739wm-1 |
ViewSonic Corporation |
16 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
and mute to default without OSD message
[1] + [2] Toggle 720x400 and 640x400 mode when input 720x400 or 640x400 mode
* Default = 720 x 400
[1] + [▼] + [▲] White Balance (Keep pushing 5 sec)
1.It will not shown on user’s guide
2.OSD message as below,
(Image = no blanking)
3.Recommend environment
3.1.Optical (Best) input timing = 640 x 480 @
60Hz;
Following timing modes also recommended,
800 x 600 @ 60 Hz
1024 X 768 @ 60 Hz
3.2.Pattern as below,
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[1] + [▲] |
OSD Lock / Unlock (refer to segment 4-6-4) |
||||
[1] + [▼] |
Power Lock / Unlock (refer to segment 4-6-5) |
||||
[2] + [▼] |
Toggle DDC/CI and DDC/2B (DDC/CI enable/disable) |
||||
|
and show following message for 3 seconds, |
||||
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When switch to DDC/CI |
||||
When switch to DDC/2B
|
VX2739wm-1 |
ViewSonic Corporation |
17 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
Default = DDC/CI
Signal + [2] + [ ] |
Factory Mode |
Remark : All the short cuts function are only available while OSD off
|
VX2739wm-1 |
ViewSonic Corporation |
18 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
4. Circuit Description
CON5 |
CON6 |
J6 |
CON1 |
|
|
CON3
CON7 |
|
J4 or |
J3 |
|
CON8 |
CON2 |
J7 |
||
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||||
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Power Circuit
Power board provided +5VD(CON1.1~CON1.2) and +5V (CON3~CON4),Which +5V is for system and LCD Panel,+5VD provided for Audio AMP.
At AC power on status,Power off mode and standby mode,Power source only provided +5V to TSUMO88GDI,Monitor total power consumption will be less the 1W.
The status for +5VD and +5V as below
+5V will provide
1.via Q4 Q3 VLCD(for LCD panel)
2.via U9 transferred to +3.3V(for TSUMO88GDI audio AMP and system related parts)
3.via U9 transferred to +1.8V(for TSUMO88GDI)
|
VX2739wm-1 |
ViewSonic Corporation |
19 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
+5VD will provide
1.via Q3 +5VA(for audio AMP)
2.via J6 to USB HUB(for GL805G)
Backlight Control
CON1.9 is inverter on/off control pin,which 5V is ON,0V is OFF CON1.10 is Brighthess control pin,control way is PWM,0% is darkest,100% is brilliant.
LCD panel power and signal
CON5 is FFC connector which provided for LCD panel LVDS,the LVDS singnal sent from TSUMO88GDI.
AUDIO
The outputs for Audio are CON7 CON6 J4 J3, CON7 is I2S digital signal, which proceed to TSUMO88GDI, transferred to internal signals, to U12(Audio AMP),to speaker via CON6, or earphone via J4.
VIDEO
The outputs for video are CON7 CON8 CON2 as below CON7 HDMI
CON8 DVI CON2 D-SUB
These signals will transmit to TSUMO88GDI,transferred to LVDS, to LCD Panel via CON5 for programming.
KEYPAD & LED DISPLAY
CON3 is KEY and LED board connector, controlled way for key board is from ADC, build in TSUMO88GDI. When user press the buttons, identified by TSUMO88GDI fordifferent voltage to control the right action by TSUMO88GDI.
Controlled way for LED board is from GPIO, Power off LED is dark, Power on LED is blue light, standby mode LED is orange light, which controlled by TSUMO88GDI.
|
VX2739wm-1 |
ViewSonic Corporation |
20 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
5. Adjusting Procedure
5.1 Function Control Description
5.1.1 Main Menu OSD Table
Main Menu |
1. Key button definition: |
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||
|
[1]: OSD off |
|
||
|
[2]: Execute the selected function |
|
||
|
[Up]: Rolling up the slider |
|
||
|
(When push the button on the top position, |
|||
|
the slider shall go down to the bottom item) |
|||
|
[Dn]: Rolling down the slider |
|
||
|
(When push the button on the bottom |
|||
|
position, the slider shall go down to the top |
|||
|
item) |
|
||
|
2. Under sRGB or DCR mode, the |
|
||
|
Contrast/Brightness shall be disabled with |
|||
|
fate-out color. And it should not be selected. |
|||
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|
Level 1 |
Level 2 |
|
|
Level 3 |
Auto Image Adjust |
|
|
|
|
1.Background = blanking
2.The message OSD position is at the center.
3.After auto tune, OSD shall be off
4.Only for analog mode
|
VX2739wm-1 |
ViewSonic Corporation |
21 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
Contrast/Brightness
Key button definition:
[1]: Back to previous OSD status
[2]: select to adjust value setting.
[Up]: Move up the slider [Dn]: Move down the slider
Contrast
1.Adjust range = 0 to 100
2.Default = 70
3.Key button definition:
[1]= Back to Main Menu or OSD off
(depend on previous
status)
[Up] = Increase the OSD value setting
[Dn] = Decrease the OSD value
[Up]+[Dn]: Recall to default
Brightness
1.Adjust range = 0 to 100
2.Default = 100
3.Key button definition:
[1]= Back to Main Menu or OSD off
(depend on previous
status)
[Up]: Increase the OSD value setting
[Dn]: Decrease the OSD value
[Up]+[Dn]: Recall to default
|
VX2739wm-1 |
ViewSonic Corporation |
22 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
Input Select
1.Show on existing input port by white-background color
2.Key button definition:
[1]: Back to previous OSD status
[2]: Change to the selected input port
[Up]: Move up the slider [Dn]: Move down the slider
D-SUB
Step 1: Turn off OSD.
Step 2:
1.Target video input port = Analog
2.If signal detected from target port, change to target port.
3.If no signal detected from target port, keep existing input port.
Step 3: Show on Input Message OSD at the right-top corner of screen for 1 second.
DVI
Step 1: Turn off OSD.
Step 2:
1.Target video input port = Digital
2.If signal detected from target port, change to target port.
3.If no signal detected from target port, keep existing input port.
Step 3: Show on Input Message OSD at the right-top corner of screen for 1 second.
|
VX2739wm-1 |
ViewSonic Corporation |
23 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
HDMI PC
Step 1: Turn off OSD.
Step 2:
1.Target video input port = HDMI PC
2.If signal detected from target port, change to target port.
3.If no signal detected from target port, keep existing input port.
Step 3: Show on Input Message OSD at the right-top corner of screen for 1 second.
|
VX2739wm-1 |
ViewSonic Corporation |
24 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
HDMI AV
Step 1: Turn off OSD.
Step 2:
1.Target video input port = HDMI AV
2.If signal detected from target port, change to target port.
3.If no signal detected from target port, keep existing input port.
Step 3: Show on Input Message OSD at the right-top corner of screen for 1 second.
Note: HDMI input default setting is HDMI AV, and user can change to HDMI PC and saved.
|
VX2739wm-1 |
ViewSonic Corporation |
25 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
Audio Adjust
1.The selected icon in Mute will be highlighted
2.Key button definition:
[1]: Back to previous OSD status
[2]: selected audio setting [Up]: Move up the slider [Dn]: Move down the slider
3. No signal, no output
Volume
1.Adjust range = 0 to 100
2.Default = 50
3.Key button definition:
[1]: Back to Audio Adjust OSD [Up]: Increase the volume
setting
[Dn]: Decrease the volume setting
|
VX2739wm-1 |
ViewSonic Corporation |
26 CONFIDENTIAL – DO NOT COPY VX2739wm-CN |
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