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

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Hi my sharp aquos lc-30hv4u keep's blowing the main ac fuse 3.15amp 250v. i looked at the main power board it looks good. is there something i can look for? thanks for any help.

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  • Sharp Master
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On the power board look at the electrolytic capacitors . The top of them should be flat. If they are domed on top or have leaked out the bottom then they need to be replaced.

Posted on Dec 31, 2014

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Posted on Jan 02, 2017

SOURCE: LC-37D62U Sharp Aquos HDTV Settings

lost sound on Sharp Aquos 37LCD62U

Posted on Jan 25, 2008

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SOURCE: Sharp Aquos LC 37HV4U - problems with AVC

I have a fully functioning lc37hv4u box & cable that I will sell for 200$ my lcd got cracked. let me know psxpirate25@hotmail.com

Posted on Aug 01, 2008

  • 2 Answers

SOURCE: Sharp Aquos LC-30HV4U

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

Posted on Nov 11, 2008

  • 1779 Answers

SOURCE: power supply bad on Sharp Aquos LC - bad board - schematic to ID?

Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.

Let me know how you do Kathy ?

Posted on May 17, 2009

  • 8457 Answers

SOURCE: Sharp aquos LC-42D62U. Have audio but no picture.

Ur LCD inverter is dead,must replaced to get the picture back.

Posted on Dec 02, 2009

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Sharp aquos LC-30HV4U red light on , does not power up , any ideas ?


I have not had that exact problem, I'm sure you have tried powering off for more than 10 minutes, for some reason that has alway fixed my issues with the same model you have. Good luck!

May 27, 2014 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

1 Answer

What is the reason for the ceramic fuse in the power board blowing?


Something downstream is drawing excessive current, Disconnect boards to isolate.
Look at capacitors to see if any have bulging tops

May 13, 2014 | Sharp Aquos LC-52SE94U 52 in. LCD HDTV

1 Answer

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...


Good day!!!

If you have lit red lights on your TV every attempt to power ON..
That problem is usually cause of bad power supply board or main board..

If you need a step by step procedure on how to troubleshoot your TV you can go to this link and get service..
LCD HDTV ASSUMED TO FIX

Thank you for using fixya...

Nov 04, 2011 | Sharp AQUOS LC-40C32U 32 in. LCD TV

1 Answer

Hi my lc-30hv4u will not turn on is the fuse inside the black box marked 224 above were the power cord connects? thanks


The main AC fuse (3.15A 250V, soldered in the board) is the red round component on the power supply board AC inlet connector, see the picture here: http://assets.shopjimmy.com/media/catalog/product/cache/1/image/5e06319eda06f020e43594a9c230972d/s/j/sjrdenca009wjn3.jpg

There are also other fuses on the board also.

Boards: http://www.shopjimmy.com/catalogsearch/result/?q=Sharp++LC-30HV4U

You need to do indepth troubleshooting.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

Jan 27, 2011 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

1 Answer

I have a Sharp Aquos LC-26D40U. I have connected my sat box via hdmi and I get nothing. I have tried several hdmi cables and hdmi equipment nothing works.Its looking like I need to replace the HDMI signal...


Hi:
You can try partstore.com or a cheaper solution is to go to ebay and input your model number for a search, there you might find refurbished boards and new boards that shops are selling for sets that had broken PDP panels etc.. (BAD LCD SCREENS)

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

1 Answer

Can I use the AVC system of a Sharp LC 30HV4U on a LC 37HV4U TV


i have the sharp lc-30hv4u but i dont have tha avc box i need buy the box if do you have i can buy call me 702 3280184 thanks

Oct 15, 2009 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

2 Answers

Can't find 2A 125v fuse replacement for on-off will 250v be OK?


There is no difference between a 125v and 250v fuse. The most important thing is the 2Amp. This fuse is probably the line fuse and could be the only trouble and may have blow with a line surge. Make sure the 2A you use is a Fast Blow Type. If it does blow again you most likely have a internal power supply failure.

Apr 19, 2009 | Sharp Aquos LC-20B2U 20 in. LCD Television

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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