Stereo hook up to my 51h84c toshiba

Replace the speakers, or use external speakers if there is a place to connect them.
It would be unusual for more than 1 speaker to go bad at the same time.
I would suspect the sound amplifier inside the TV. If the TV has Audio output connections, you can hook them to anything in your house that has an audio input.(stereo, boombox, computer, etc)

This TV is not designed to plug speakers into it. You must hook to an amplifier( home theater system/ stereo) with digital optical connection.

You probably have to use the TV remote,go into the sound settings,and change it from stereo to whatever options there may be for surround.Good luck! Greg

Since you have it hooked up to the stereo system, you need to go to on screen audio set up and turn off the TV built-in speakers (you will be listening the TV sound through your stereo system speakers), then go to the audio output set up and set it to 'variable' so the audio output of the TV's RCA audio out put will vary with the volume control of the TV (not all TV will alow this function), you will need to set the stereo volume to certain level (around 9~10 O'clock setting) since the sound coming from the TV will be controlled by the TV remote volume control. You can otherwise set the TV output to be at 'fixed' level, which means the sound output of the TV will not be controlled by the TV remote volume control, you will use the stereo remote volume control to adjust the sound level instead. I hope this is clear to you.

i got everything hook -up stereo works but my tv surround does't i push test button it works but no surround from tv

What cables are you using? Some TV's and DVD players have options to set your audio source. My DVP5982 I have to set it to HDMI digital audio, check to see if you have that on your TV.

if it is a stereo tv, there should be rca jacks on the back of the tv [red,white yellow] try connecting the rca outputs to a stereo system and see if the volume is any different.there might be a loose connection to the tv speakers inside.if you have a cable box hooked up to your tv, check the connections in back. you can also try bypassing the cable box by connecting the cable wire directly into the tv to see if it's the tv. if it is the cable box try unplugging it for a minute then hook it up again.i had the same problem with my cable box. hooking it up to a stereo system sounds like a pain, but at least you will have sound.
good luck
wg

you might of overloaded your sound card , take it out turn your computer on .turn it off again reconect your sound card and try using your sound.your computer needs to reset the sound devices.Remember your soundcard isnt like amps found in souped up cars,

Possibly Replace Attenna CABLE

you may have a blown fuse. check that first. Very if it still has a power.