Question about Sharp Aquos LC-30HV4U 30 in. LCD HDTV

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Lc -30hv4u whenturning the tv on with remote the acv stays in standby with steady red light on the acv box. tv comes on the blus picture and green lights in display. I tried reset feature and does not work. So I unplug tv and acv for 20 min and plug back in and it all works. Any suggestions?

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Re: lc -30hv4u

This is just the beginning, it will happen more often and at some point in time you will have the same problem some of us are having, it will click the monitor power light will lite up green and the ACV box light will come on green for a second and then go red again and the lcd screen will go blue. Unit will not power up. I have this problem and it has started the same way, I did the same thing and nursed it for about 6-8 months now no matter what I do it wont come on, I have tried no power for a day, cleaning, banging acv around tapping, slapping cursing and still nothing. So if you ever find this problem I would love to know what the fix is and who can perform it, I live on disability now and cannot afford just to let somebody charge me out the wazoo and say they cannot find the problem or tell me something like it needs a whole new ACV just because they don't know what to do. If I learn anything I will let you know also.

Posted on Dec 02, 2007

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Sharp LC-30HV4U with only steady red lights on Display and AV unit; when pressing vol/chan/power on Display, it will go into "service mode" - what should I check next? and how do I exit service...

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Hi, I bought an aquos lc-30hv4u and it has no rca jack etc, only two plug ins labled display input 1 and 2. I am guessing its just a pc monitor. How would I use it for cable tv video games etc

There are lots of inputs on the back behind the cover. Three inputs (1, 2, 3) have an S-video, composite video (A/V) and component video jacks. The cover will come off if you press the two top hook at the top of the cover. Then rotate the cover towards you. There are also a DVI-D port and 2 coax (antenna in) jack. The tuners included are for NTSC (analog OTA) and CATV (analog cable). The front of the PC (VGA) and a S-video or composite (A/V) video input (called Input 4).

Composite and component video jacks are all RCA jacks (as are the associated audio jacks for the input). Composite cables uses three RCA plugs on each end - yellow for video, red and white for Right and Left audio. Component video cables have three plugs on each end that just carry video (red, blue and green); the audio is wired separately with just 2 RCA red/white plugs. Match your colors from the device out to the TV input.

Changing inputs can be done with the remote or the input button on the top of the TV. The input button is to the left of the power and Main Power buttons.

Connecting your game system, cable system and all will depend on the units. For the best picture, use component video cables for mose set top box. Some cable boxes have a DVI port - use that if the box has that option. If they do not have component video out, then use composite or S-video cables.

The owner's manual is available from Sharp as a pdf: . Use the drop down menus as follows > LCD TV, Model not listed, LC-30HV4U then click Search. The picture of the inputs are on page 10.

I hope this helps.

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Dec 15, 2010 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

1 Answer

My sharp aquos lc-30hv4u will not power on?the box is blinking red then green but the tv will not power on at all?

It can be the power supply module or shorted out backlight inverter board which will cause the power supply to go into safety shutdown mode, those are the two areas you need to check. Right now the 5VDC standby is working.
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Please see my basic troubleshooting guide here:

Capacitors kit:

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Issues with the auto screen control. Check the set up and see if all the adjustments are out of wack.Try bringing them ito normal picture manually. If this does not wor it is tech time

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Nov 02, 2009 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

3 Answers

Sharp Aquos LC-30HV4U

replace the supply board
or repair it *** there's problem with supply

Jun 13, 2008 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

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