Question about Koss KS2503 System

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Woke up turned the system on and have no sound

I turned on the system like I normally do it was on av2 like its supposed to be. No sound on dvd plus I cannot even open it. No sound on my camcorder on av1 no radio, Nothing seems to work is there a master reset or has my system just had it? Thank you and I look forward to hearing from you Koss won;t help

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Re: Woke up turned the system on and have no sound

I have no idea but it sounds like toast to me

Posted on Jan 02, 2007

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I have connected the audio optical cable from my TV, but I couldn't get the koss system to work. Are there any other settings need to be set? Which channel should i use to get the sound AV1 or AV2?

AV1 & AV2 are the Video Inputs from your external devices such as DVD Player, Freeview etc.

I presume you have something connected to your TV and want to get this sound from your TV to output through your Koss.

Their should be a menu to activate the Optical Input but I can't find the manual to advise the correct menu.

I'll keep looking for a manual so if you can't find the menu let me know and I'll see what I can do to guide you in the right direction.

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Sound only from left front and right front speakers possibly my projection screen tv is only 2.1 channel does this mean i cannot have surround

surround receivers are supposed to be able to turn a stereo signal into a surround signal.  if the surround unit is producing just a stereo sound, then the tv is most likely outputting in mono, and not stereo; or there is no surround sound to decode..

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I need a diagram of how to hook up my jvc 5.1 surround sound to my tv, dvd and cable box

I my self don't have that exact unit, but most are similar, and i have looked up the specifications which are:

1 x S-video input
1 x Composite Video Inputs
1 x Digital Audio (TOSLINK) Input
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document.write(neg_specification_newline('1 x S-Video Output
1 x HDMI Output')1 x S-Video Output
1 x HDMI Output
INPUTS (coming from devices to the system):
1) The unit already comes with a DVD player, correct? If so you don't need to connect it. If you do, connect your DVD play via an s-video input, since a normal DVD player doesn't need a higher quality/resolution input.

2) Connect your cable box to the home theater system via a composite cable (the one with Red green blue), if it has composite outputs ofcourse. If not, do it visa versa with the DVD, if your dvd has composite. So make the dvd via composite and cable box via s-video.

3) Audio from the dvd, this would be via Digital Audio (TOSLINK) Input or stereo audio input. the digial audio will give you true 5.1 surround sound, and the stereo will only give you left and right channels, like you would hear from anything else (like a normal cd, radio, etc).

4) audio from cable box, would be again depending what you want. If you cable provider gives you alot of programming that has 5.1 surround sound (mostly HD channels), you would be better off with the digital audio. But if you watch more via your DVD, then connect the cable box via the stereo input. Again, this is to your preference, and which one you want true 5.1 surround sound from. The system should be able to 'emulate' 5.1 surround sound via the stereo cable too, but if your watching a movie, it can't really tell if a sound is supposed to come from the left rear or the left front.

5)connect to tv via HDMI if available, or S-video.

HDMI is much higher resolution (HD quality) S-video is normal cable programing or 'dvd quality'.

And the Tv would be left on mute or volume=0 since no audio is connected to the tv! All the audio should now come from your system.

Sorry if this was too vauge, but I don't have the same system and dont know exactly what/where all the connections are. If you have any other questions let me know.

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1 Answer

Sound but not picture, a black screen

Hi gp63

you will need to change the settings of the tv to ensure that it is on the right mode. ie. av1, av2, dvd, what ever the settings you have used for your tv.

good luck


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1 Answer

Speaker mode AV2 retained?

No you will have to reprogram it over again maybe it will stay for, a while but not for long.good luck.

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