Only the S-Video working,Composite video input not working

The Speco dome camera has a standard 75 ohm. composite video output so you should be able to connect it directly to your composite video input. It does however have a slightly higher and non-standard resolution (540i vs 480i) for composite video so it could be that the ViewSonic can't upscale it correctly as a true professional monitor can. If you can manipulate the composite input settings through the setup menu to upscale the inputs I'd give that a shot too.

Well, use the "Monitor Out" jack on the receiver, as that is what it's designed for.
Is there a jack labeled "Video 1 Input" or only "Video 1 Output"? It could be that the Harmon Kardon folks have a weird way of labelling so that "Video 1 Output" is actually an "input" to the amp that is then fed thru the "Monitor Out" jack. It will take some experimenting on your behalf. Some units will also NOT take an input or output thru the S-Video IF you have a composite cable connected to the (yellow) composite video jack for that same point, so make sure that is disconnected if you want to use the SVideo. Also, sometimes there is a menu setup in your monitor where you have to decide between Composite video or SVideo or Component Video, so check that in some cases as well.
Let me know what you find out.

You will need to purchase a scart to HDMI converter - available in the UK for about £40.

If you Google 'Scart to HDMI converter' you should find several options, which will be cheaper if you are in the US!

Unfortunately the Humax box you have only supports Scart A/V I/O, which is of course now obsolete.

MPN 770-10116-900

Adapter Type Video Capture
Interface with Host PCI
Video Input Composite Video • i.Link (IEEE1394)
Video Output Composite Video
Platform PC • Mac
Hey no problem....It is best for Video capture...the datails are this.... i still useing it.........
Technical Features

Audio Support Stereo

System Requirements

Operating System Apple MacOS 9.x or later • Microsoft Windows 2000• Microsoft Windows XP Home Edition • Microsoft Windows XP Professional

Warranty 3 Years

Included Accessories 1 x Firewire (IEEE1394) Cable • Composite to S-Video Cable

You need to connect a composite cable from the receiver. The receiver does not carry a composite signal over component cables.

I have the same amp. You have to have the same input as you do output for video...ie: s-video in/s-video out, composite video in/composite video out. I know it sucks but thats how NAD designed it.

hello you need the s-video/sound usually four pins in each end connect to s-video not composite video..saludos

Step 1
Shutdown your computer and look at the rear of the case to determine the type of video connections that your machine has. Nearly all computers will have the standard 15-pin VGA output port. In addition, you may also find that your computer has an S-video port, an RCA composite video port, a set of three component RCA video outputs or perhaps even an HDMI output port.
Step 2Determine the types of video inputs that are available on your plasma TV. There should be a standard RCA composite input, a three-jack RCA component input and an S-video input. In addition, you may also find a 15-pin VGA input, a DVI input or an HDMI input. Step 3 Select which type of connection you will use. HDMI and DVI represent the highest-quality connections, followed by VGA, Component, S-video, and composite. If your computer has only a VGA output and you will not using it solely to drive the plasma TV, you may want to invest in a video card upgrade. Most new video cards will offer dual monitor connections and possibly a separate TV connection. The first monitor connection is intended for the main computer monitor, and the second monitor connection, or the TV output, can be used for either a second monitor or a TV. Depending on the card, the TV output may be DVI, HDMI, component, S-video or composite. Step 4Purchase a video cable long enough to reach from your PC’s video output to your plasma TV. If the distance is over ten feet, you may want to invest in high-quality cables to ensure that the plasma TV receives a clean signal for the best possible picture. Cables over thirty feet in length, depending on the connection type, may result in poor video performance. Step 5Set your computer’s screen resolution to something that your plasma TV can accept, using the “Display” settings in the “Control Panel” in Windows. Refer to the owner’s manual of your plasma TV for the supported resolution and refresh rate. If you are using the S-video, composite or component outputs on your computer, this step may not be necessary. Step 6Connect your PC to your plasma TV using the appropriate cable. Start the computer up and it should recognize the attached display. In the “Display” settings, you will need to configure how the plasma TV is used if it is attached a second display. Most video cards support “Clone” or “Mirror” mode, which displays the same content on both displays. In addition, there is the “Extended” mode, where the second display will operate independently, and windows can be dragged from one screen to the other. If your plasma TV is the only monitor for the computer, you will not to configure the multiple display modes. Step 7Connect a cable from the sound output of your PC to your plasma TV using the appropriate audio adapters. Then relax on the couch and enjoy your videos on the big screen.

The input on your television monitor must be set to view the composite with the S video cable. You will not be able to view the component video unless you also have component video outputs going from the input selector to the television. After you have done that, you will also have to change your television input from "video 2" to whatever input you used for the component video hookup.

To save cost on this model, as with many others they are sharing the S-Video input circuits with the composite input circuits at the entry point. There is a kill switch incorporated with the S-Video jack in the set. Even if you put an external switch box to the set, the composite video will not work unless the S-Video plug is pulled. Your best solution is to get a TV set with a true multiple video input. The other alternative is to have a sat receiver with an external input for throughput feeding. Another alternative, but not as good quality as S-Video, is to use your sat receiver in the composite mode to the set, and have an external switch box to select one or the other.