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Sharp 70 LC-70C6600U...plug and automatically get frozen vertical bars on screen...

Nothing changes image...unplug to turn off...led tester shows backlights/voltages ok...main or tcon?...or both?...

Posted by Matt Durrin on

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5 Related Answers

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: Sharp Aquos LC-C3242U power issues

Do you get any indicator lights at all, if you do, then the 5v standby circuit is working, if you get nothing at all, then the main power supply will be the first palce to look, blown fuse? capacitors?

Posted on Nov 06, 2009

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budmrtn

Bud Martin

  • 11361 Answers

SOURCE: Sharp lc-32sh12u...no picture

It can be either the LCD panel driver board, or the worst case is bad LCD panel.

Posted on Nov 19, 2009

Testimonial: "Thanks for the response. I found a PWB board, a Power board and an AV board. Would one of these fix the problem?"

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Anonymous

  • 3 Answers

SOURCE: my sharp lc 32d42u shut off and won't turn back on

IF YOU STILL HAVE SOUND I AM PRETTY SURE WHAT THE PROBLEM IS...

Posted on Nov 20, 2009

Chi Chu

  • 8457 Answers

SOURCE: My sharp LC-37d62u display problem

This problem very common in sharp tv.The POWER,OPC flashes.First turn on have power LED indicator light stable at all? Tries the power again couple times will have backlight come back on,than it will work.Not at all more than 5-6 times than ur main turner signal board is the problem,must replaced.

Posted on Jan 05, 2010

Testimonial: "Took a part back panels looking at the circuit board power capacitors, plugged in TV to power outlet, and powered up normally."

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: Sharp Aquos LC-42DH77E 42" LCD TV TV appears to

The PNL-POW (LCD panel Power) and the PS-ON will be 0V until the main board send out the signal to turn them on, it is working.
Do you get backlights?
Did you check the fuses on the Inverter board? You power supply is working.
This service manual may match your chassis:
http://elektrotanya.com/?q=showresult&megnev=Sharp&megnev2=LC-42DH77E&kategoria=&kat2=all

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 pictures: 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.

Posted on Jun 01, 2011

Testimonial: "Helpful"

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1 Answer

When I turn on my Sharp TV the picture comes on for a second then goes black. The sound is working but the picture stays black.


hi quick test, in a dark room shine a flashlight on the screen, if you a can see an image, bring the menu up if you can see it the led or leds in panel may blown, thanks

shaun

Feb 15, 2017 | Televison & Video

1 Answer

Sharp LC-50LE442U does not turn on. RED standby LED is lit, when I try to turn it on, the LED turns green but screen stays black. LED then stays green, won't go back to red when turning off.


You cannot tell if capacitors are bad just by looking at them. they need to have a meter called an ESR meter to test them, I can tell you with almost certainty that it is a capacitor in the power supply that has failed. The whole board is Sharp 9JY0950CTN02000 Power Supply Board (09-50CTN020-00) LC-50LE440U LC-50LE442U

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1 Answer

When tv is turned on you get poicture and sound but there are broken horizontal lines from top to bottom of screen. this occurs on all hdmi inputsincluding roku and dvd player.


How to fix lcd lines on Sharp tv screen, hdmi video board ...

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https://www.youtube.com/watch?v=cHki4D0EwOo
May 24, 2014 - Uploaded by Tampatec
How to fix LCD lines on Sharp TV screen, hdmi video board easy ... Make Money From Your Broken Cracked LCD LED PLASMATV ... TV Repair Help for Vertical & Horizontal Lines on Your TV Screen ... Sharp Aquos LC-32 37 46 52DH65E 66E 77E - NoPic/Sound with ... Get video URL at current time.

comments on LCD Display Symptoms and causes. - YouTube

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We have frequent outages causing the TV to turn on from standby mode when power returns. (These ..... Sharp LC-70LE650U 70-Inch Aquos TV TURNS ON WITH PERFECT PICTURE AND ..... It has thin horizontal lines on the top quarter of thescreen. ..... hey there, bought a 52lg60-ua had no image/picture but had sound.

LCD Display Symptoms and causes. - YouTube

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Jan 28, 2016 | Sharp aquos 52 in lcd 1080p aquos 52...

1 Answer

I have a 70'' sharp LED TV Model number LC-70C6400U, the screen turned black and multiple green lines on the images, there is power and can hear the voice.


If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Jul 10, 2015 | Sharp Televison & Video

1 Answer

I have a sharp aquos lc-70le650u, will not turn on, power light flashes rapidly 2 times then 5 times


I'm not sure about this one since I never worked on 1 of them.. But I did find a link that you can check on. http://www.badcaps.net/forum/showthread.php?t=41773. Good luck on it

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2 Answers

Sharp aquos LC70LE650U 5 short flashes 2 long, no display


Try unplugging the unit and hold the volume up and channel down buttons down and plug the unit in. Let go of the buttons and the unit should come on up the service mode. There will be a small k on the screen. With the remote press the channel up button . This should bring up a menu that will show a lamp error line. If the lamp error is = to 5 the unit is in lamp error shut down. Use channel down to highlight that line and the curser right arrow to highlight the lamp error #. Hit the enter button to clear the lamp errors. Now unplug the unit and let it sit for a minute and plug back in. If the unit does not come on by doing this or if it does and you do not find lamp errors the power supply pcb may have been damaged .

Nov 20, 2014 | Sharp AQUOS LC-70LE650U 70" 1080p LED-LCD...

1 Answer

Vertical lines showing up after being on for awhile


Eh, I can't be too sure, but it sounds like it's either a heat issue, a signal issue, or a backlight issue. Either way, if it's still under warranty I'd send it in.

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3 Answers

My sharp LC-37d62u display problem


This problem very common in sharp tv.The POWER,OPC flashes.First turn on have power LED indicator light stable at all? Tries the power again couple times will have backlight come back on,than it will work.Not at all more than 5-6 times than ur main turner signal board is the problem,must replaced.

Jan 05, 2010 | Sharp LC 37D62U 37 in. LCD HDTV

1 Answer

Green vertical line on the right side of screen


Warranty still alive?
Hope so; the problem could be an expensive one.

The screen appearance is controlled by allowing light from a backlight through by turning pixels off and on.
This switching is done by a matrix that turns on vertical and horizontal pixels of the right shade at the right time to produce the image you see.
One of the control elements for the vertical that controls the transmission of green light from the backlight, has died (no longer switching off and on when told) and these are normally a part of the LCD screen assembly itself and not easily replaceable.

I would be talking to Sharp - this shouldn't happen in 6-7 months of use.

Jul 09, 2008 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

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