Question about Optimus STA-795 Receiver

1 Answer

Only 2 channels working

Neither AM nor FM has ever worked, but I only wanted to use my turntable so it didn't matter. Had a tech look at it, he said only 2 channels were working and hooked up to those channels. I bought a new receiver but it would not power my speakers. That is the important point...I want to keep my speakers...12" woofers, 8" midrange, 3" tweeters. Man at Radio Shack said older turntables would not work with new receivers. I've talked to everyone in town, get a different info every time. Please Help. P.S. I have the user's manual and will send Xeroxes or fax.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 3,130 Answers
Re: Only 2 channels working

If your new reciver does not have a turntable input, you can purchase a phono preamp and simply plug the turntable into the preamp and the output of the preamp to an aux or tape input of the new reciver. they should have it or be able to get it at radio shack. Or look up online or build one as I had to do as im a cheap skate, but I know what I have now..Check this out. i included the preamp i built so i can still use my collection of vinal with my surround sound system. Good luck and please dont forget to rate this thread.

Posted on Oct 19, 2006

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

No sound output from turntable on sx-780 receiver

do you have in connected to a phono input? be sure you haven't connected it to another input..........turntables are low-level (20ma) output, cannoit drive high-level input (200ma).........good success, meder's tv service

Dec 18, 2012 | Pioneer Sx 780 Stereo Receiver

1 Answer

I have vestax 05pro2. Left channel works but out of one speaker. The turntable input is good. Im thinking Its either the channel fader, or the rca inputs for that side. Has anyone had this problem?

Here's a solution to see if you have a problem with either your receiver or turntable.
The turntable has 2 RCA's one red for right channel, and one white or black for left channel, which plug into the back of the amplifier.

  • Unplug both RCA from rear of amplifier.
  • Plug in a cd or dvd player into those inputs on the amplifier, the sound will be lower but it will give you an indication if the amplifier is ok or not.
  • If you have sound on both channels left and right then the amplifier is good
  • If you still only have sound on left channel, then there is a problem with the right channel input on the amp.
  • If your amp, is good, unplug the cd /dvd player.
  • Put a record on and start playing the record
  • Plug the white or black RCA from the turntable into the rear of the amplifier marked left, you should have sound.
  • now unplug it from the left and plug in into the right red RCA socket, if you have sound the amplifier is working fine.
  • if there is no sound there may be a problem with the stylus cartridge on the turntable
  • now lets reverse the test
  • unplug both RCA from amp.
  • Plug the red RCA into the left socket on amplifier, if there is sound, turntable is working fine, if no sound there is a problem with either the stylus cartridge or that red RCA cable.
  • now unplug the red RCA from the left side and plug it into the right side socket
  • if there is no sound there may be a problem with the stylus cartridge or RCA cable.
I hope this helps


Jul 15, 2011 | Audio & Video Receivers

1 Answer

I have an ONKYO TX-SR606 receiver and I am trying to listen to FM radio using more than just the center channels. I have gone through the setup screens for the tuner and only Analog choices are available....

In reality the correct way to listen to radio or any music source for that matter is in 2 channel stereo. What this means is that the front left and right will play and also the subwoofer. If you absolutely want all your speakers to play while listening to fm, than press the Multi channel button and set it to direct, or any other sound field that you may desire.
Good Luck

Jan 08, 2011 | Onkyo TX-SR606 Receiver

1 Answer

Don't have a manual or the remote for KLH audio video receiver model r5100. Cannot figure out how to program the presets on the am/fm radio. Can someone tell me how or do I have to have a rermote to...

There should be numbered buttons on the receiver.Set the channel to what you want to preset,then press and hold down the numbered button you want.The sound will probably go away for a couple of seconds but when it comes back on the channel is preset.If you press the band button while you're already on FM and it goes to another FM,you can also preset more channels for FM.There should only be one AM band,then it will switch back to FM.
Good luck! Greg

Aug 10, 2010 | KLH R5100 Receiver

1 Answer

Electronic hum

Hey there,
What I think is the problem here is that your A/V receiver may have a blown preamp for the turntable input. Or, although less likely, assuming that both channels sound normal when the receiver is set to a different input such as an FM tuner, there could be an impedance mis-match between the turntable's output and the reciever's input. But, the goal is to try simpler (and much more inexpensive), methods first. Try replacing the cable that connects your turntable to the receiver. If no difference is heard, then we should take another diagnoses.


Mar 25, 2009 | Pioneer Audio & Video Receivers

2 Answers

My turntable works on old reciever and not new one

A traditional turntable only works on Phono (which contains special preamplification and equalization circuitry designed to raise the the level and flatten out the response of a phono cartridge).

After you do that, iIf you're not having hum problems I wouldn't worry about the ground. Or try it again on the FM Ground.

Feb 20, 2009 | Sherwood RX-4105 Receiver

1 Answer

Tuner Omits No Sound - Onkyo TX-SR605 7.1 Channels Receiver

Make sure your receiver is hooked up to proper AM and FM antennae. Try switching to AM, scan stations. If you hear AM static and/or weak signals the problem could be antennas are not hooked up. FM has AFT which blocks out weak or noisey stations and you wont hear anything without ant.

May 06, 2008 | Onkyo TX-SR605 Receiver

1 Answer

SX-1600 + KD-491F

Appreciate the additional information.

To recap what you need is a receiver that can accommodate:
4 - Pioneer S-DF1-K (15-100W, 8 ohms)
1 - Pioneer PD-F407 25 Disc CD Player
1 - Pioneer CT-300 dual tape deck
1 - Kenwood KD-491F turntable

Possible choices are (keeping in mind that the power output should be less if not equal to 100 watts and a turntable/phono input):
i. Onkyo TX-8522 Stereo Receiver;
ii. Yamaha RX-397 100 Watt Natural Sound AM/FM Stereo Receiver;
iii. Sony STR DE695 AV receiver;
iv. Teac AG-790 200 Watt Stereo Receiver;
v. Denon AVR 888 - AV receiver - 7.1 channel.

Some of the above also includes feature(s) to hook up to your video system. Some may even require a fifth speaker (subwoofer).

Incidentally, you can also choose another brand/model even without a turntable/phono input. As initially posted, a turntable/phone to line level pre-amplifier is only required. Here are some examples:
a. XP200 Turntable Preamp - Nano Series;
b. Pyle® Pro PP999 Phono Preamplifier;
c. Pro-Ject Phono Box Turntable Preamplifier;
d. Radial J33 RIAA Turntable Preamp Direct Box

Good luck with your project.

Apr 29, 2008 | Audio & Video Receivers

1 Answer

Receiver Realistic STA 2700: no sound / signal argggh

Sounds like a power supply issue, maybe the transformer when bad, it may need replacing.

Sep 27, 2007 | Audio & Video Receivers

Not finding what you are looking for?
Audio & Video Receivers Logo

Related Topics:

166 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optimus Audio & Video Receivers Experts

Larry Stiles
Larry Stiles

Level 2 Expert

286 Answers


Level 3 Expert

56798 Answers


Level 2 Expert

232 Answers

Are you an Optimus Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides