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Question about RCA RT2390 System

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Surround help i have the rca rt2390 surround and i have been using tv/optical for television watching...all of a sudden i have no sound. the "l" and "r" speaker lights blink and are the only two that show up on the display screen. i think it happened by remote, since i dont use the receiver itself. there is sound if i change it to fm, but again its only the two front speakers instead of the full surround system. thank you...

Posted by renee marquez on



5 Answers


On my sound system my left and right speakers r blinking

Posted on Aug 01, 2008



**For the original question**
It sounds like you are talking about using digital optical output from the TV. Most likely, since a newer TV that would have optical output is most likely a flat screen plasma or LCD, they tend to try and 'detect' things.... kind of like with the HDMI connections...

Example: Panasonic actually uses HDMI cables for its 'easy sync' or "viera" link system, which only works with other Panasonic 'easy sync' products. Ex: Turning off the TV can turn off a receiver connected with HDMI, or turning on a compatible blue ray DVD player will turn on the TV and set it to the appropriate input based on the HDMI activity detected by the TV)

Another Example: Sometimes my cable box ( HDMI 1 input) won't send any signal even though it is on, unless I switch the TV input to HDMI 2 and back to HDMI 1. Only then is the input from the TV 'detected' by the cable box and Hi-Def signal begins transmission. Basically, I must turn my cable box on, before selecting the input. If I select the input and then turn on my cable box, the cable box seems to not realize the HDMI connection is active.
The receiver also has to 'detect' things...
for example the optical input could be receiving "AC3" aka Dolby Digital codec, or it could be receiving "PCM" data, which is when you transmit analog audio over digital media. The receiver has to know which type of data it is receiving in order to process Dolby Digital (which contains 5.1/7.1 sound encoded), or to process PCM (stereo) data, which is then encoded by the Dolby processors from 2-channel (stereo) to 5.1 (surround sound).

**Original Question (IF you are indeed using optical output from TV)**
This problem does not surprise me... ESPECIALLY if the source of audio INPUT (going into) your TV is not digital like the HDMI/optical input/coax digital inputs...
Using these digital inputs, the TV optical output is the same as the input (digital/AC3).
If you are using any analog type of input (cable tv coaxial, red/white RCA cables), then the data is transmitted digitally as PCM stereo data.
NOTE: PCM is how the '.wav' files are made.... it is non-compressed stereo signals that has been changed into digital format from an analog source.

**Original Question**
To save yourself time, I think you would be able to fix this by unpluging the optical cable... from the receiver or the TV (ONLY ONE END IS NEEDED)...
if that doesn't work, turning the receiver off, then plugging optical in after it is turned back on should work...
last option, unplug the receiver.

**FOR "answers" #1 AND #2 WHO ARE USING RCA AUDIO**
Most likely the same kind of issue.. I can select from my tv audio menu whether to use analog RCA or digital output for tv audio out.
Using RCA output means any digital audio input has to be converted from digtal to analog audio.
Even if no digital is involved, the receiver will try and detect whether the analog signal is stereo only or should be processed by the Dolby surround sound (which it eventually messes up and switches to stereo only, or cuts the sound completely upon receieving a different input type)
Fixing the RCA should be even easier, as i'd imagine you only need to disconnect the RCA cables, and then reconnect them. Again, you only need to disconnect the RCA cables on one end
Once reconnected, the receiver should realize the signal has 'changed' and switch back to the appropriate output mode you selected.
Also, restarting may be needed, but I have a feeling this will save some time when fixing this problem.

WHY YOU ONLY NEED TO DISCONNECT ONE END (I'd say just disconnect the receiver end, but really... whichever is easier to get to):
when you disconnect one end, it is 'seen' by the 'connected' device as disconnected at both ends... just like when you unplug an ethernet/LAN cable, if one end is unplugged, and the computer remains plugged in, the computer cannot tell the difference and shows the network cable is unplugged.

Posted on Apr 23, 2008



I own a rca rt2390, almost 2 years old and only used for rca dvd movies, I connect from rca hdw l&r analog. The first of this year, movie time, turned the unit on and it produced no audio. Doing my own troubleshooting, disconnecting and reconnecting audio inputs and outputs, power cord ect, the unit began to work as always, excellent, great sounding unit. I did not build a history on what exactly I did that got the unit working again. This weekend, movie time, the unit would not produce audio, this time I only giggled connections, nothing worked. I read your help, tv off-power cord on, rt2390 off-power cord off, removed l&r analog audio cable from tv and the unit. Took out the trash, that took about 5 minutes, I hooked every thing back up, turned the tv on, found a movie on usa, turned the rt2390 on, Walla, audio again!! Thanks, now I have a history on what to do the next time the unit fails to produce audio!!

Posted on Oct 30, 2007


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I have had this problem with mine. Neither your reciever nor tv is broken. But the tv is the problem. What i do is... Turn off the TV. Unplug Left and Right hookups from reciever and tv. Wait about a minutes. Plug them back in. Start the tv.

Posted on Sep 14, 2007

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Hmm. let me see if I get U correctly. you use u'r theater system with a TV and the audio is fed via optical or U have DVD player that you can feed the audio via optical or coax. I think it is the later, if it is U could be having trouble with sound decoding setting of the DVD player itself. It's like mpeg out or PCM out instead of full DTS or 5.1 dolby digital decoding. If this is the case just use u'r dvd remote and check the audio play back settings. If this does not solve u'r problem, pls state u'r set up briefly, so tht I can understand the type of connection u use. Happy troubleshooting Rifaa

Posted on Sep 07, 2007

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Related Questions:


RCA model rtd3266

Quick and dirty:

From the back of the RCA unit make sure you are using the auxiliary input jacks to connect to the output jacks on the TV.

You will need to go into the setup menu on your TV to select an external sound system and finally you'll need to select auxiliary on the RCA unit to hear the sound from your TV.

Hope this helps,

The Tinker


Hi,here is the solution......
Since you successfully connected your
DVD /Receiver to play video on TV (one way only ) ,here is the second reverse action to listen your TV on DVD /Receiver
** you need to connect "Audio Output " as can either be : RCA jacks or "Optic cable output" or "SCART "connector " of your TV ,
** to "TV input "or "AUX input" or "Optic Cable input"
of your DVD /Receiver (whichever you want based on the necessary cables on your hand )
** than just switch to respective mode on
DVD /Receiver corresponding the connector you have used on the back of DVD /Receiver ..
You can use "HDMI" connections as well but sometimes HDMI creates problem on Audio..

There you go..Both Tv and Xbox sound are on the
DVD /Receiver as SURROUNDING SOUND .By this means ,whatever you watch on the TV will come thru your DVD /Receiver SURROUNDING SOUND .

Hope this helps!..if more help requires pls let me know.
Take care and please
Remember to rate/vote and give me 4 Thumbs Up for me to
continue f
or Helping out the Community :)

I am attempting to attach a Samsung Sound Bar to my 42 inch LCD 1080P Polaroid Television. I can not seem to get sound from the Television connected to the Sound Bar. Thoughts?

Connect the audio out RCA jacks (white and red) on the TV to the white and red RCA input jacks on the sound bar for analog stereo sound or connect the black digital audio output jack (typically optical) on the TV rear panel to the sound bar's optical digital audio input jack for surround sound. Use an optical cable. There may be some user settings on the TV for audio.

I want surround sound. How do I hook up my audio 5.1 RVC-884VBK, with my HDbox and LCD TV? It's too confusing. What hooks to what? Currently the HD box and blueray DVD is hooked straight to TV ...

Does you television have an "Optical Audio Output"? This would be the best and easiest way to get surround sound from your system. If your TV has an optical output the you can use an Optical Cable to connect the TV to the reciver. This way whatever you are watching from the TV will be in surround sound. The HDMI connection sends a surround sound signal from each device to the television. If you connect it to this output on the TV then make sure the optical output is turned on in you telivison's menu. If your TV does not have an Optical Audio Output then you will need to connect each optical output from the blu-ray and HDbox to your reciever. Your reciever will need to have two Input channels(one for each device). Then you can select that input to the device(blu-ray or HDbox) that you are using. The optical cable is the best way to go for surround sound because it is pure digital and produces the best sound. If the HDbox or Blu-Ray does not have an optical output then you will need the six rca jacks to get the surround sound. Let me know further info on what you have so I can assist you more.

I have a LG plasma, do i need a optical digital audio out cord to use surround sound?

In order to get true 5.1 surround sound you need to use either digital optical (fiber optic) cord or digital coax cord(RCA style ends) to link between your TV and your digital source such as DVD,digital cable box,digital satelitte receiver.You can route the audio through the TV but that's not the best way to go,I recommend going directly from the digital source to your surround sound receiver for optimum sound. Good luck !

My surround sound will not work through the TV, only the DVD

If your tv and surround has an optical input/output.Then you can connect with an optical lead.This will then play the sound from whatever you are watching.You normaly select dig1 or input1 on the surround system.

Rca rt2390 lost remote 5 years later lost electricity reciever reset and no optical input designated cannot designate optical to input source without remote...help

I found somewhere called newremotecontrol.com they have the remote for less then $20 bucks ... I lost my remote 3 years ago
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