Question about ViewSonic VA712B 17" Flat Panel LCD Monitor

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No digital signal but analog works fine

I've got both a mac and pc with digital connectors to test the connection, tried switching dvi cables, and fiddled with every setting, but for some reason can't get a digital signal to appear. Only analog. When there's nothing but a dvi connection then I get a "No Signal" Message on the screen. When both analog and digital are connected, the display switches to analog after I try selecting digital. The digital connection worked fine until about a week ago.

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Seems like this was already answered? But once you've checked against the owner's manual and ruled out the PC, I would suspect the signal / video board inside the monitor. May have gotten a surge or static, etc.

Posted on Jan 12, 2007

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Posted on Jan 02, 2017

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1 Answer

How to install a female DVI to my computer


If you are trying to connect a monitor that has only DVI connections to an older PC that only has VGA-15 pin, the easiest solution is to buy a replacement video board that has DVI capability. However, ensure that the DVI is of the same TYPE as the monitor. There are a number of different DVI configurations, and they are not all compatible with each other. There are VGA-to-DVI adapter cables, but they only work if the DVI is DVI-A or DVI-I, since the VGA port is analog and not digital.

Here is a link to the different DVI configurations. You can compare them to the connector on your device to see what type you need. If it is a digital-only type, you will need either a new video card that supports digital or you need to get a analog-to-digital converter cable. They are more than just an adapter; they have electronics that convert the signal.


https://www.l-com.com/multimedia/tips/tip_dvi_config.pdf

Oct 27, 2016 | Computers & Internet

4 Answers

Playing blue ray movies on jvc dla sx21 projector


It should work right away. Try again, restart the projector and ps3 make sure everything is connected and the input on the projector is on dvi.

May 17, 2008 | JVC DLA-SX21U Multimedia Projector

1 Answer

How to switch from analog to digital mode


Any contemporary monitor is able to switch analog/digital mode automatically if connection from signal source to monitor is set up properly.

Connect digital output from your graphic card to DVI input of the monitor. Disconnect any other signal cables from monitor and switch on both devices (PC & monitor). Wait a while. Monitor checks its inputs and a activates digital DVI, because it is only one active input on it.

If none picture excluding error message of monitor is displayed, go through these steps:
1) Check whether your monitor is set for automatic input selection. If monitor buttons have no response try to use analog input to activate screen (any picture, desktop background...) and then get monitor menu access by pressing menu button.

2) Find out what connector type has your graphics card in PC. Possibilities are: DVI, HDMI, DisplayPort and some their options. See Wikipedia for connector look if you are not sure.
Remember that blue D-SUB (VGA) connectors are analogue and you cannot activate digital mode through analog VGA cable.

3) Use appropriate cable to connect monitor to PC.
Example: Your PC has HDMI output. Use HDMi-to-DVI cable. Your monitor input is DVI and common DVI-DVI cable is not suitable in case you have PC with the HDMI.
Note that DVI-to-DVI, DisplayPort-to-DVI etc. cables are available. You must buy right one.

Be aware that "Auto" button is inactive in digital mode of monitor.

Nov 18, 2013 | Belinea 1930 S1 Monitor

1 Answer

How can i use dvi port


DVI stands for (D)igital (V)ideo (I)nterface.

DVI is a new form of video interface technology made to maximize the quality of flat panel LCD monitors and high-end video graphics cards. It is a replacement for the P&D Plug & Display standard.

you can connect high definition monitor , LCD projector , LCD T.V to a DVI port

There three kind of DVI connector
1. DVI-D (Digital)
2. DVI-A (Analog)
3. DVI-I (Integrated Digital/Analog)

DVI-D format is used for direct digital connections between source video (namely, video cards) and digital LCD (or rare CRD) monitors

DVI-A - High-Res Analog
DVI-A format is used to carry a DVI signal to an analog display, such as a CRD monitor or and HDTV

DVI-I - The Best of Both Worlds
DVI-I format is an integrated cable which is capable of transmitting either a digital-to-digital signal or an analog-to-analog signal, but it will not work transmitting a digital-to-analog or analog-to-digital signal.


How to Recognize These three types of DVI Cable
There are two variables in every DVI connector cable, and each represents one characteristic.

The flat pin on one side denotes whether the cable is digital or analog:
A flat pin with four surrounding pins is either DVI-I or DVI-A
A flat pin alone denotes DVI-D

The pinsets vary depending on whether or not the cable is single- or dual-link:
A solid 27-pin set (rows of 8) for a dual- link cable
Two separated 9-pin sets (rows of 6) for a single-link cable

Jul 12, 2011 | Computers & Internet

1 Answer

Hdmi will not work only use of component cables will.


Hello

The HDMI[1] input on your TV receives digital audio

and uncompressed digital video and audio from an

HDMI device or uncompressed digital video from a

DVI[2] device.

This input is designed to accept HDCP[3] program

material in digital form from EIA/CEA-861/861B-

compliant[4] consumer electronic devices (such as a settop

box or DVD player with HDMI or DVI output).

The HDMI input is designed for best performance

with 1080i high-definition video signals, but will also
accept and display 480i, 480p, and 720p signals.

To connect an HDMI device, you will need:

• one HDMI cable (type A connector)

For proper operation, it is recommended that you use

a short HDMI cable. You should not encounter

difficulty if you use an HDMI cable shorter than 16.4

ft (5m).

HDMI cable transfers both video and audio.

Separate analog audio cables are not required (see

illustration below). Some CDVs (video CDs) may

not output digital audio signals. In that case, you

may hear sound by connecting analog audio cables.

However, if you connect analog audio cables with

this connection, the HDMI terminal on the TV will

not receive the HDMI digital audio signal and you
will hear analog audio only.

To ensure that the HDMI or DVI device is reset

properly, it is recommended that you follow

these procedures:

• When turning on your electronic components,

turn on the TV first, and then the HDMI or

DVI device.

• When turning off your electronic components,

turn off the HDMI or DVI device first, and
then the TV.

To connect a DVI device, you will need:

• one HDMI-to-DVI adapter cable

(HDMI type A connector)

For proper operation, the length of an HDMI-to-

DVI adapter cable should not exceed 9.8 ft (3m).

The recommended length is 6.6 ft (2m).
• one pair of standard analog audio cables
OK

Dec 16, 2010 | Toshiba 30HF84 30" TV

1 Answer

I have a Sony DAV-HDX275 Theater System that I'm trying to connect to an old 17 LCD Dell Monitor. The cable I have is a HDMI to DVI connector. My monitor will pick to the digital signal but nothing appears...


This is because it is transmitting an compressed encrypted signal and the monitor is made to recieve uncompressed signals,You can sometime get around this by changing the output to vga or analog on the theater system.

Aug 25, 2010 | Sony BRAVIA DAVHDX275 Theater System

1 Answer

Just received Refurbished Advent CBE 1401. It is being replaced because power switch is faulty - but I have questions about machine. 1. When initially switched on the switch turned red is this normal? I...


1) No. The switch color should have been Green

2) No Signal on the monitor, indicates the monitor is not receiving a Video Signal from the computer.

A) Could be due to a faulty monitor cable.
Monitor cable is used on a working computer for a test,
Or,
working computer's monitor cable is used on the Advent for a test.

B) Could be due to the graphics 'engine' on the motherboard, or on the graphics card is bad.

[Graphics 'engine'.
GPU
Graphics Processing Unit.

http://en.wikipedia.org/wiki/GPU ]

If the computer is using Integrated Graphics, the GPU is on the motherboard.

(Integrated Graphics is also referred to as OnBoard Graphics. Meaning On the motherBoard)

You will know if it's Integrated Graphics, because the monitor cable will be plugged into the VGA connector, on the motherboard

http://en.wikipedia.org/wiki/VGA_connector

Since you indicate an adapter was included, to adapt to a different port (Connector), it could be a VGA to DVI adapter, or a DVI to VGA adapter.

Your monitor may just have a VGA connector on the monitor cable.
Hence you would use a female VGA to Male DVI adapter.

Your monitor may be an LCD flat screen monitor, and has a DVI connector on the monitor cable.
Hence you would use a female DVI to Male VGA adapter.

DVI
Digital Visual Interface

http://en.wikipedia.org/wiki/Digital_Visual_Interface

VGA monitors are Analog.
LCD monitors are Digital.

A computer puts out a digital signal.

If a VGA monitor is used, the computer has to alter the Digital signal to an Analog one.
This slows down the video signal.

If your monitor (In any case. Not just this one), is an LCD flat screen monitor, it is best to use a DVI monitor cable, and plug into a DVI port on the computer, if available.

If your monitor is a VGA (CRT. Cathode Ray Tube), monitor, and you have a DVI connection on your computer, using the adapter will do you no good.

The adapter just uses the contact pins for VGA, that are present in that DVI adapter, and hence the DVI connection on the computer.

You're still just getting an Analog VGA signal.

Example of a female VGA to male DVI adapter,

http://www.directron.com/dvi.html

If the Integrated Graphics are suspected to be bad, a graphics card is used in the appropriate expansion slot, for a test.

If the graphics work then, the graphics card is left in service.

After I test the monitor cable my next procedure is to suspect the Power On switch, or the Power Supply, and go to the graphics next.

The reasoning is that Power Supply failure, is the number one cause of computer failure.
The next is the Power On switch, then Electrolytic Capacitors used on the motherboard.

(Specifically, any Electrolytic Capacitors used in the motherboard Voltage Regulator Circuit)

If the Power On switch is bypassed, the diagnosis will reveal if the problem is the switch, or Power Supply.

Bypass the Power On switch, and the Power Supply comes on?
Problem is the Power On switch.

[One Power On switch I have found to fit a lot of computers. The Power On switch goes into the plastic Power On button,

http://www.directron.com/atxswitch.html ]

Bypass the Power On switch, and the Power Supply does Not come on?
The problem is the Power Supply.

The Power On switch is bypassed using a jumper wire, from the green Soft Power On wire, to ANY black Ground wire. The contact made is a brief momentary one.

The jumper wire is used at the back, of the 20, or 24-pin ATX main power cable connector.

To be continued in an additional Comment.


Jun 04, 2010 | Computers & Internet

1 Answer

DVI won't work


WOW! I have that monitor too on one of my systems!

Strange thing is it HATES the SVGA connection ~ but works FINE with the DVI... wish I could tell you why?

I've tried a array of 'new drivers' but none help... STRANGE thing too is OTHER monitors work FINE (with the VGA port) so I'm fairly confident it's not that...

I CAREFULLY inspected the pins on the male connectors to assure none are pushed back into the connector body and tried new cables too... still NO GO?

PLEASE let US know if you found a solution!

Anthony

Dec 12, 2017 | Samsung SyncMaster 214T Monitor

1 Answer

I have a HP media Centre m487.uk desktop PC and when connecting a new samsung monitor with the DVI cable, get a blank screen. The analog signal works fine though. There must be a setting that needs to be...


Most monitors with both analog and dvi have a switch to change. So on the monitor, look to see if you have a setting for which connector to use. it should be in one of the menus on the monitor osd

Apr 29, 2008 | Computers & Internet

2 Answers

Analog output works fine, but no signal for digital output


is ther option on screen it self dvi mode and anlog mode .

Jan 24, 2008 | Sun - XVR-100 Graphic Card

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