Question about Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

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Sharp 20" LC-20B4U-SM

No sound on following channels - 5,6,8,10,12,13,23,24,25,28,34,35,48, video OK. Please advice. Thanks. Sasha.

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Re: Sharp 20" LC-20B4U-SM

I cannot say pariculary for this model, but on some models of TV sets, if the channels are not programed as part of the channel list, they are muted.

Turn on the TV, and perform the channel auto setup.

Jerry G.

Posted on Apr 12, 2008

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I have sound but no picture on my tv sharp aquos 20 inch

if you mean have sound but no Pic.or no raster, horizontal section is the culprit. most problem is at the Horizontal output section that drives the Flyback transformer. Pull out that HV cap & test them to ground if there is some arc coming out. No arc means failed output section or the flyback transformer need to be replace..

Sep 25, 2013 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

Looking for a stand for Sharp Aquos LC-2084U-SM

Go to and get a universal stand. It attaches to the back of the TV just like a wall mount

Nov 08, 2012 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

The tv viewing of TV shows and movies seem fake. The camera angles don't seem movie like but more like a video camera. What setting do I need on my 60" LCD sharp

Try cycling through all of the av modes by pressing the av mode button on your remote to see if you like movie or standard. You are most likely in av mode dynamic fixed at the moment.

Sep 20, 2011 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

My tv stoped working out of the blue and i checked the power cord an thats not it what could it be

No lights on thwe front panel at all?
The power supply may be dead, or you get sound but no pictures then the backlights inverter board may be bad. You need to open it up and check the voltages and components inside. To have it repaired in the shop will not be worth it.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic troubleshooting guide here:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 18, 2011 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

Varous tv channels do not have sound. It is NOT a

TO: rdh041: I don't have the solution to you problem, but we have the exact same problem with our Sharp AQUOS 20" LC tv. Different model than yours, but same age and same perplexing issue. Several channels suddenly have no sound. If you've found a solution, would you please post it? I'll do the same. Thanks.

Jul 15, 2010 | Sharp Aquos LC-20B6U/LC-20B6E 20 in....

1 Answer

6 yr old 30 sharp equos. When I turn on red light flashs green and turns back to red immediately and no picture.

I have the exact same problem. Check to make sure the AC power box isn't making a ticking noise. It could indicate a faulty box. I'm getting mine checked out asap. I'll let you know how it goes!

Jun 19, 2010 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

There is no screen is on

Hi my name is Roety,
I can help you with your issue ,
 If the TV menu works then you have a bad source or the Tv wrong source is selected
Reboot all devices and check the connections and make sure the TV is on the correct input source
If I have helped you with your issue
If you have more questions you can still respond
I will reply asap

Jan 29, 2010 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

Were can i buy a replacement powr cord

Are you looking for power adaptor or just a power cord?
Part number for adaptor : UADP-0243CEPZ
Part number for ac cord : QACCD3097CEPA
Both parts are available from Sharp.

Nov 30, 2009 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

1 Answer

Screen went black while watching, now ony have sound

Look at the venting grills, you should see whit lights inside the set. If not, the backlight inverter board may have gone out or the power supply supplying the power to the inverter board may have gone out. Those are the two places to look first. It may have bad capacitors in the power supply.

Nov 06, 2009 | Sharp Aquos LC-20B4U-S 20 in. LCD EDTV

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