The computer doesn't appear to have audio input capability,or its not configuerd correctly

The RCA Model # 8530 appears to be a stereo receiver, which means it does not have the capability to directly burn a CD from a tape.
To convert a tape to a CD format, you would typically need a separate device called a cassette deck with a built-in CD recorder or a computer with the appropriate hardware and software.
If you have access to a cassette deck with a CD recorder, you can connect the RCA Model # 8530's tape output to the input of the cassette deck and then use the cassette deck's CD recording function to transfer the audio from the tape to a blank CD.
If you have a computer, you can use an analog-to-digital converter to connect the RCA Model # 8530's tape output to the computer's audio input. You can then use audio recording software on the computer to capture the audio from the tape and save it as a digital file. Once you have the digital file, you can use CD burning software to create a CD from the captured audio.
It's important to note that the specific steps and equipment required may vary depending on the exact models and setup you have. It's recommended to consult the user manuals for your devices and, if needed, seek additional guidance from the manufacturer or a knowledgeable audio technician.

You may have the wrong input source selected. There are a number of different source connections on the back of today's TV sets. Using the remote's SOURCE button, cycle through the different inputs until you find the one that your input device is attached to. It is common for users to inadvertently cycle off the correct input when pushing remote buttons.

if your desktop doesn't have a standard vga socket then you can get a dvi adapter that fits onto the end of a vga lead. you will still need a seperate cable for audio as a dvi connection only does video.

If you are feeding video from your pc to your TV from the pc video card, then no audio will go to the tv unless that is connected also from your pc audio output.
HDMI (Multimedia Interface) means it connect both mediums: i.e.audio and video.

I think you need to install the included recording software. It does everything for you.

You can connect this to your computer if you have an S-Video output on your computer. This is the only supported connection on your TV. This model doesn't have a VGA, DVI, or HDMI port.

Hope that helps!

This could be many things:

A. Your monitor is capable of receiving more than one kind of video signal - like a TV - and you need to change the input source (see manual).

B. Your computers video card is capable of outputting more than one type of video signal, and needs to be set for your monitor (Control Panels).

C. You are plugging the monitor into the wrong video port.

install/reinstall you audio driver
to check current device status

chek you device manager for any sound car driver

1. Click Start, click Control Panel, click Performance and Maintenance, and then clickSystem.
2. On the Hardware tab, click Device Manager.

if you see somthing like this you will need to install the device driver

Have you checked that the input you are using is enabled in the recording section of "Volume Control", and that the volume level that set correctly?

A sound card (also known as an audio card) is a computer expansion card that facilitates the input and output of audio signals to/from a computer under control of computer programs. Typical uses ofsound cards include providing the audio component for multimediaapplications such as music composition, editing video or audio,presentation/education, and entertainment (games). Many computers havesound capabilities built in, while others require additional expansioncards to provide for audio capability.

There is more information on this here
http://en.wikipedia.org/wiki/Sound_card