Question about Hyundai ImageQuest HQL320WR 32 in. HD-Ready LCD Television

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VGA stopped workig, I keep getting "no signal"

My computer is connected to the VGA connector but I keep getting "no signal". It used to work before. I tried to connect another computer but got the same problem. I use the same resolution as before. Seems there is a HW problem with the VGA connector. How can I fix it?

The board model inside the TV is LTV1280B, any body know where can I buy a replacement and how much it should cost?

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  • AYBRB2U Mar 29, 2009

    I used a 10 foot M-M vga cable to connect my laptop with 1280X 768 resolution at 60 Mhz refresh rate to the LCD and pressed the hot key. I tried again with another laptop, different brand, the laptop recognized the new accessory, but still a No signal coming from the TV after having it on PC mode. It has never worked for me.

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You can use the DVI port and use DVI-VGA adapter.

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Hi Paul,

This problem is often the result of a loose video cable connection on the computer or an incorrect video signal selection. Most monitors use a cable with "VGA" connector on the end that mates to the computer video port. Other modern computers make use of an HDMI (like the ones used to connect a TV to a BluRay Disk player) or DVI connector instead - either way if it is loose you will get the same "No Signal" message on screen. Make sure these connectors are making good contact with the port on the computer by seating them fully (or better yet - remove and reinsert). In the case of the VGA connector, most have two screws to hold them in the port - you should make sure both are threaded all the way in. You do not need to crank them down, finger-tight is more than enough.

Many newer - flat screen types in particular - do not have the video cable permanently attached. Instead, they use the same cord and connector arrangement found on the computer. It is possible that the connector has become loosened on the monitor end - especially if the monitor is moved / adjusted frequently. You should check the connections at the rear of the monitor just as you checked at the computer, too.

When satisfied that the connections at the computer and monitor are good, check the monitor again. If the message is still present, the monitor may be able to select between an analog input and a digital input via a menu item accessible from the monitor. Check your monitor manual for instructions to change inputs if unsure. If you are using the "standard VGA cable" (the one with the two screws) you should select the analog input. If you're using an HDMI cable, you should select the digital input. If you're using an DVI connector the input may be either analog or digital. When making a change, wait 5 to 10 seconds between toggling between the analog / digital selections to allow the monitor to sync the signal for proper display.

If you're still unable to display the desktop, it is possible that that someone has changed the BIOS options to select a different video card (if more than one is installed) or that the cable is defective.

I hope this helps and good luck!

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Why will HP a6700f onboard VGA connector will not provide a signal ?


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I have a HP m7570n. How do I use a flat screen tv as a monitor


This depends on the TV's available inputs. The Pavilion m7570n has only a VGA output in the standard configuration.

Thus if the TV has a VGA port, turn off the computer and the TV. Then connect a standard VGA (RGB or D-sub 15-pin) m/m cable between the computer and the TV. To use the TV speakers, connect a 3.5 mm audio patch cable between the computers Line-out (green speaker port) to the VGA audio in. Turn on the TV and set the input to VGA (with the Source or Input button on the remote or the TV). Then turn on the computer. Windows XP should find the correct resolution to work with the TV. (If you turn on the TV after turning on the computer, you may get an unsupported signal. Press Ctrl-Alt-Del twice to restart the computer.) If it doesn't work, you may need to connect a different monitor and set the computer to a low resolution before connecting the TV and the computer.

If the TV only has composite or component video inputs, you will need a VGA to video converter (http://www.svideo.com/pctocomponent.html for example). A VGA to component cable will not work; those are for projectors that read an RGB input. TVs interpret YPbPr.

If you have added a video graphics card, you may have an HDMI and/or DVI port(s) on the card. In that case, check the specs of the TV. Some TVs will support HDMI or DVI-HDMI inputs from a computer. Others will not (since computer video signals are not the same as the signal from a set-top box). If you use a DVI-HDMI connector, make sure to use the HDMI port labeled for DVI and connect the audio cable as with the VGA connection. If you use an HDMI connection, you may need to set the sound properties to that of the HDMI port. (Find the control panel item for sound (under Hardware) and then select Manage Audio Devices. Set the Playback properties. If it doesn't work, use an audio patch cable.) Some TVs have RCA audio inputs for the HDMI-DVI connector. In that case, you will need a female 3.5 mm to RCA M/M adapter (if you use a 3.5 mm patch cable). There is a similar device if you want to use an RCA audio cable. You may need to enable the video ports on the graphics card before swapping monitors.

Some video cards have a TV out. In that case, connect the appropriate connector (should come with the video card). Then connect to the component, composite or S-video input on the TV.

Again turn off the TV and the computer before making any connections.

You will probably need to provide your own cables for must of these connection options.

I hope this helps.

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1 Answer

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Everything seems perfectly normal...

When you connect the computer to the monitor via an analog VGA cable, you get signal on the analog input.
When you connect them via a DVI cable, you feed the monitor's DIGITAL input, so the monitor doesn't get any signal on it's analog input, and informs you about it.
You have to select the digital input from the monitor's On Screen Menu, and then start the computer up - you should see the picture OK.
Also remember to set the display resolution on your computer to match the optimum (native) resolution of your monitor - this will give you optimum picture quality. In case of VA712B it will be 1280x1024.
Good luck and please come back with a testimonial if helped.

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1 Answer

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1 Answer

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You have tried the monitor on more than one known good computer, yes?

I believe about 4" inside this monitor in the back the vga cable or connector connects to a board with an in-line connector. Can you see if this connector (internal to the monitor) in connected?

Good luck...

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You might try cleaning the connector / plugs with acetone from finger polish remover or de=natured alcohol.
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1 Answer

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Keep us posted,
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