Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

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Works except for humming sound on audio

Worked fine until sudden developement of a humming sound on audio. Unplugged all connections to rule out feedback loop. Still humming. Is there a seperate sound board?

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I have the same problem> Only lasts for a few minutes, but, it hurts a little and its an incredible annoyance. Besides being annoying I'm afraid the tv is dying soon and the noise its its high pitched scream of pain agony as it slowly finds its way to its final resing place.t

Posted on Nov 07, 2008

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Sounds like you may have a bad transformer

Posted on Aug 18, 2008

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3 Answers

No sound


Sounds like a loose connection that has finally failed in the audio out circuit

Jun 04, 2008 | Hitachi 61HDX98B 61" Rear Projection...

1 Answer

My rca big screen tv sound suddenly stopped. Checked speakers and get humming sound.


Depending on model number and age humming sound indicates failure in the audio output circuit--shop repair in most cases.

Let me know if you have questions.

Mar 16, 2012 | Projection Televisions

1 Answer

Can not change "Device" input, no sound control,no remote control


I unplugged the manual switch electrical connection. Everything works just fine with the remote.
Not sure what is wrong with the switches just yet, but suspect a resistor problem. I have checked all voltages and have 5.04 v feeding the switch assembly on what I feel are the correct circuits
(5v, ksco, ksc1, man/reset). I have no voltage on the ground circuit with the board plugged in, so the ground circuit should be ok. I have tested all switches with ohmmeter, all switches work. I suspect a resistor problem as I have one with no voltage drop and one resistor with no voltage pass-thru. Would need a wiring schematic with values to pinpoint better.

May 16, 2009 | Mitsubishi WS-65711 65" Rear Projection...

1 Answer

Tv hums when hdmi is connected via dvd player


how do you have the audio hooked up for it if you are using componet cable (red,white) for sound they could be causing the humming you can either switch audio cables or use some other form of cable for sound

Jan 24, 2009 | Samsung HLN617W 61" Rear Projection HDTV

1 Answer

Possible sound card problem?


check the solder connections on the audio output ICs and also around the external sound connections often the ground trace will develope a solder crack and will cause a loss of sound.

Jun 30, 2008 | Hitachi 46BX01B 46" Rear Projection...

2 Answers

I have a 3 year old Panasonic CT-32HXC14J TV. It has been working fine until today. When I tried to turn it on the internal (6.3amp/125v fuse) blew. I went to get a new one and could only find a 4 pack...


Hello sjday62

It sounds as if you have a component that has changed value enough in value to cause a high current draw, but has not completely shorted out. this phrase from you "so I did a stupid thing and bypassed the internal fuse and it turned on and worked" Not as stupid as you would think because it confirms what I said above, the 6.3 amp fuse tells me that the current draw normally is about 3 amperes since the normal rule of thumb is to double the value of the current to select the type of fuse. a five amp fuse should as well as a 4 amp fuse (it's best and recommended to use the exact fuse type). Now back to your issue. I would suspect that a transformer in the power chain has developed a shorted winding, or a capacitor begun to develop a short or excessive absorption.

I would suggest that you have the set looked at by a qualified TV technician.

I hope this helps,

Thank you,

Shuttle83

May 01, 2008 | Draper Cineperm 132" 1.85:1 Projector...

5 Answers

No sound on hitachi 53sdx01b


The first thing to try is rescanning the Freeview channels as it may just be a software corruption...if you have the option of "1st time installation" pick that.Also let me know if there is any buzzing sound coming from the tv..

Oct 16, 2007 | Hitachi 53SDX01B 53" Rear Projection...

1 Answer

Flickering of screen (comes and goes) and weird DVD/reception problems


Depending on how old this set is, there might be a bad Hyper board bad. good Luck

Jun 29, 2007 | Toshiba 43H70 43" Rear Projection...

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