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I own an absolutely immaculate Realistic STA-2100D Receiver that I'm thinking of selling. Everything works including all the indicator lights and cosmetically is in near new condition. But it has one minor flaw, the right channel will intermittently go out, a turn back and forth of the function switch restores the channel. I'm thinking the function switch just needs to be cleaned? I welcome your thoughts and thanks in advance!

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  • Edmund Anaya
    Edmund Anaya Oct 10, 2013

    Thank you for your solution, yes there is a good possibility that the switch is bad and just needs replacement, thanks for your comment.

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Cleaning the function switch may not restore normal operation. More likely, the function switch is failing even though the receiver is in the condition you describe

Posted on Oct 10, 2013

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Posted on Jan 02, 2017

SOURCE: Receiver Realistic STA 2700: no sound / signal argggh

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

Posted on May 16, 2008

  • 3 Answers

SOURCE: I have a Realistic STA-2100

Tandy Consumer Services (Radio Shack's repair shop) can fix it for you. You can ask for an estimate first, so you'll have a good idea of the repair costs. I have one of these units myself, and I used to work for Tandy. They have all of the schematics and parts that they'll need to repair it. You could probably have it done for less than $200.

Posted on May 04, 2009

  • 128 Answers

SOURCE: I have a Marantz SR5004 AV Surround Receiver.

Hello First off i would determine if the same thing happens when the cable box is connected directly to the TV with the hdmi cable.

If the picture goes out get a new box from your cable company.

If it works fine then its time to call Marantz

My Denon avr 4310 does a similar thing and after a lot of research it seems that the problem is with how digital signals are sent through the HDMI cable and how the control board of your receiver processes those signals.

Here what I mean

HDMI is meant to simplify connections by transmitting video, audio and CONTROL signals through 1 cable.

The problem becomes when you introduce a "middleman" in this case your receiver the control signal doesn't always get interpreted correctly.

My TV has the capability to "turn off" the "control" signal coming through the cable if yours does try that first (i have a sharp 52" led) this solved some of the issues.

My receiver has the capability to accept different inputs and merge them so here is how I get around the problem.

1. I use HDMI for video signal but also use the optical for audio this allows me to send the "complete" hdmi signal through the receiver and to the TV this complicates things but also allows you to get audio through your tv speakers so if you want to watch something late at night you aren't waking people up when the receiver gets loud. This stopped things like the video flickering or turning off.

You will have to play with your menu's to see if you can do this on your unit.

How to fix this easily? Dump HDMI and use component (red, blue green RCA's) for video yes its still HD and yes you will have to run audio separately. but it eliminates all the digital processing issues that receiver manufacturers haven't worked out.

I was pretty upset when I spent $1500 for my Denon receiver and Denon then told me that HDMI doesn't always make anything better.

Hope that helps





Posted on Feb 19, 2010

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