Question about LG DLP Projector 1400Lum RD-JT30 Multimedia Projector

1 Answer

Projector and pc not picking each other up

I only have one cable (dvi)coming out of my pc to my projector....i connected from my video card dvi port to projector dvi port. both the pc and the projector are not picking each other up.....pls assist, i dont know if i need more cables or what

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers
Re: projector and pc not picking each other up

Hi, Normally your connection should work straight out. Pls verify that your dvi output is enabled/activated by checking your display properties. In a Windows based OS machine, right click on any clear area of your desktop, click on Properties. Click on the settings tab, Advanced button. Check on the different abs such as Monitor, display and others. There should be an indicator for dual view or enabling/activating your secondary display unit (which is your projector). Hope this be of some idea/help. Post back how things turn up or should you need further information. It may also be of help if you can provide info on your PC. Good luck and kind regards.

Posted on Sep 25, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Hooking up projector to laptop with only HDMI port

The PG-F320W has a DVI-I port between the VGA/Component input and the VGA output. You will need an HDMI to DVI cable or a HDMI to DVI adapter and either an HDMI or a DVI cable. If you use the audio input of the projector, you will also need the audio cable between the computer and the projector. (Make sure to disable the HDMI as the audio playback device. In Windows, go to the Hardware and Sound Control Panel. Then go down to Sound and Manage Audio Devices. Click on the Playback tab and check your output device. Click on Start for Windows 7 and earlier, Windows Key + X for Windows 8. Then select Control Panel.) has good prices for most cables. The HDMI to DVI cables are here: .

The manual for the PG-F320W is available here: . See page 21 for the DVI cable connection information. See page 61 for video resolutions that the projector can handle.

I hope this helps.

Cindy Wells

Dec 13, 2013 | Sharp PG-F320W Projector

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

Hi--my new Vivitek D5 projector is not connecting to my Macbook. I have a mini DVI converter attached to a vga to DVI video adapter, but the projector can't "find" the source.

Please check your port with another source to confirm the working of the PC. Now also try to see if the projector connects with another PC. This will confirm the culprit as it is possible that there is a signal mismatch to the source input and hence not detected.

Oct 14, 2011 | Vivitek D511 3D Projector

1 Answer


1. You will need a VGA or S-video cable and a 1/4 inch stereo plug that will go from the earphone jack to the EZpro then out to a amplified system for the sound.
2. I believe the EZpro has connections for HDMI which will supply sound as well as High definition video. You should have an adapter for the HDMI also if you

3. connections port as follows:
1. USB Connector (Connect to PC for Remote Mouse function)
2. RS-232 Connector
3. Audio Input Connector
4. S-Video Input Connector
5. DVI-I Input Connector
(PC Digital (HDCP)/PC Analog/Component Video Input)
6. VGA In/SCART Connector (PC Analog Signal/Component
Video Input, HDTV/SCART Input)
7. VGA Output Connector (Monitor Loop-through Output)
8. Power Socket
9. KensingtonTM Lock Port
Looking at the usb port go counter clockwise the numbers are in succession. 1- 9

1 Power Cord
2 VGA Cable
3 DVI-I to VGA Cable (Optional accessories)
4 Audio Input Cable (Optional accessories)
5 RS232 Cable (Optional accessories)
6 USB Cable (Optional accessories

Apr 24, 2010 | CTX Optoma EzPro 610 Multimedia Projector

1 Answer

I am trying to set up an InFocus LP400 projector with my computer. I followed the instructions using the CableWizard Lite cable for my laptop pc and get no projected image. I used the suggested port...


start the connecting all over again, by following the steps below:

1. Turn your computer off.

2. Connect the cable from the computer to the projector. If you want to have your monitor to be hooked up as well, connect a splitter to the video out port (DVI or VGA). You can also just hook the projector up to the second port on your video card (If you have one) or if you have a laptop, you can connect to the video out port on the back.

3. Turn the computer on and boot into your desktop.

4. Turn on the projector. Most projectors have an auto detect function, that will detect a video signal and auto configure the projector to display that signal. If you have a laptop, you have to hit a function key to activate the second display. Usually this is FN Key + F5 or one of the F Keys across the top of the laptop keyboard. It looks like two squares, one empty and one with something in it.

5. Adjust the focus, brightness, contrast, and color on the projector.

6. Aim the projector at something white. Try not to aim it at something highly reflective.

7. Step back ... Load up your favorite game or video ... and enjoy.

Your project should work, after following the above instruction.

Good luck.

Apr 07, 2010 | InFocus LP 400 Multimedia Projector

1 Answer

Hdmi connection problem

it does do dvi-d for computer, but does not handle high-definition video. it does not have the same resolution.

Mar 14, 2009 | InFocus Proxima DP6155 Multimedia...

1 Answer

Connecting Dell laptop to Infocus LP820

The USB cable doesn't transmit Video. You need to plug in the VGA cable. The "DVI" port on the LP820 is not a a DVI but a M1 Digital port and won't work with DVI unless you get a converter.

Nov 30, 2008 | InFocus LP 820 Multimedia Projector

1 Answer

Connecting a Sharp Multimedia Projector XR-40/30 Series Notevision 30X to a HP Pavilion Zd7000. I cannot get an imageMultimedia projector

use a vga to vga cable. if your HP has a 13 pin serial conector. (looks like a trapezoid), use that.
If not you may need a dvi to vga cable.
if not, the projector may have two ports on the back - use computer in - not monitor in.

Lastly, try the video settings on the HP to see if its picking up the projector as a second monitor as a primary
Makes a difference, NGK

Aug 07, 2008 | Toshiba TDP-S8 Multimedia Projector

1 Answer

DVI will not recognise now ?

Presumably, you're going directly from DVI port on computer to DVI port on Z2?. Here is a Q&A list based on all the possible sceanrios for this hook-up...

Q1: Is it DVI-D or DVI-I (with unencrypted DIGITAL output from graphics card)?
A1: Choose 'Input 2', then 'RGB(PC Digital)' on Z2.

Q2: Is it DVI-D or DVI-I (with HDCP-encrypted DIGITAL output from graphics card)?
A2: Choose 'Input 2', then 'RGB(AV HDCP)' on Z2.

Q3: Is it DVI-I or DVI-A (with ANALOGUE output from graphics card)?
A3: Choose 'Input 2', then select 'RGB(Analog)' on Z2.

After making sure the correct 'Input 2' is chosen to match the signal coming from the card's DVI port, make sure your card is outputting a suitable screen resolution that the PLV-Z2 can display correctly, e.g... 1280x720 (native, and preferable!); 640x480; 800x600; 1024x768 (choose this if you don't have 1280x720); 1280x1024, etc. Also, if you have multiple refresh rates availble for the resolutions, choose 60Hz.

You should end up with an image.

Sep 18, 2007 | Sanyo PLV-Z2 Multimedia Projector

Not finding what you are looking for?
Multimedia Projectors Logo

Related Topics:

121 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Multimedia Projectors Experts


Level 3 Expert

2236 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers


Level 1 Expert

27 Answers

Are you a LG Multimedia Projector Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides