Question about Sharp LC-13AV4U 13 in. EDTV-Ready LCD Television

4 Answers

Turns itself off

Sharp LC-13AV4U - turn it on and in ten seconds it turns off. Happens every time. In 10 sec I can't even get to/through menu. Anu Ideas?

Posted by on

  • 6 more comments 
  • Anonymous Nov 29, 2007

    SHARP LC13AF4U LCD TV NEW OUT OF BOX..NO AF NO RASTER NO CLICK



    REMOVED BACK..VISUAL..NO SMELL, NO BURNT, WIGGLED THINGS, CHECKED B+ ...165VDC, WW RES OK, PWR SW CONTINUITY OK,

    NO SCHEMATICS AVBL USUAL SOURCES...MFR REFUSES LITERATURE.

  • Anonymous Dec 16, 2007

    Mine turns it's self off after about 10 sec everytime you turn it on. anyone know why?

  • FrunobulaxD May 08, 2008

    Having the exact same problem here too after about 13 months of operation. Local repair shops claim about $100 to repair but won't give any clue as to what module is blown.

  • millerjp Jul 15, 2008

    Same problem, set turns itself off in about 10 secods- it also appears the screen is dim, like the backlight is an issue or the circuitry driving the back light.

  • Anonymous Aug 07, 2008

    Same problem! Love the little TV and it just started turning it self off after a few seconds. Happens every time.

  • JoanRN Sep 12, 2008

    Also having the same problem. Turns itself off after 5 sec.

  • Anonymous Dec 07, 2008

    Same problem, plays 10 seconds and powers off.

  • Anonymous Mar 25, 2014

    it turn off and on in seconds

×

Ad

4 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

Sharp LC-13AV4U - turn it on and in ten seconds it turns off.
Happens every time.
Any Ideas?
-----------------------------------------------
DO THIS AT YOUR OWN RISK!
This is NOT a fix, this is a permanent band-aid.
All you need is a phillips head and tiny diagonal cutters....
Heck, even a nail clipper would do it.
Just disable that faulty protection shut-down circuit!
Remove all the screws from the back cover
and look at the main board with the
unplugged! power cord towards you.
In the upper right corner of the board, you will find
a tiny red-striped zener diode, labeled as D409.
It is to the right of an electrolytic capacitor marked C403.
Snip this diode, at either end, or snip both ends and discard it.
Re-assemble the TV.....and you just got your tv back!.
I only run mine when I am sitting in front of it,
I never leave it running unattended....just in case!
Don't blame me it yours burns up....but mine is just fine.
The Robot Doctor.

Posted on Dec 13, 2008

  • 4 more comments 
  • nascunce May 05, 2011

    THANK TO THE PERSON THAHT HELP OTHERS WHITH THE INFORMATION THATH THEY HAVE THANK YOUUUUUUUUU

  • Mike S Aug 08, 2011

    This worked for me as well. Just snipped D409 and it now is running fine. I just garbage picked this two hours ago. I'll run it awhile and monitor it. Thanks.

  • Teresa W. Apr 03, 2012

    Thank you so much!!! Just did it and worked like a charm!!! Hardest part was getting the back off--finding all the screws. Really appreciate it! Was going to pay an online technician or buy new TV, so you saved me some money!!! Awesome!

  • slukas9020 Aug 07, 2012

    This "repair" was spot on! seems to trouble with these units. Mine has been working for months now and no troubles to report. Thanks Doc!!

  • Lee Lutterman
    Lee Lutterman Nov 13, 2013

    Amazing what the internet can do! typed in the model number of my tv with the similar problem of shutting down after 10 secs, and within in 5 minutes I had it fixed....Thankyou!

  • luis42178
    luis42178 Jan 28, 2014

    Thanks doc! You were spot on! Works like a charm. Saved me having to remodel my kitchen to accommodate a larger monitor! I will heed your precautionary advice regarding not leaving the TV on unattended... Just in case.

×

Ad
  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

My sharp LC-AV134U Had the turn itself off symptom. I tried freezing and heating the board but I could not pin point the bad component. After a few cycles I could no longer replicate the problem and the set was working. This lasted about 2 weeks at that point suddenly the set was dead with a slight ticking sound. I found D631 was shorted I replaced it with an NTE 506. It has been running for 3 weeks now no problems. I suggest that everyone try a new D631.

Posted on Oct 21, 2008

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Hi, all found this out: If you hold a channel up or down button while you press power, the set powers on without the backlight on and will stay on as long as you hold the button.
On the top left of the main circuit board is a capacitor C403. If you short the + lead to ground then push the power button, the set will stay on! There is a Zener diode D409 next to the cap with it's cathode connected to the + lead. I think this may be part of a protection circuit for the backlight circuit. When the voltage on the cap reaches .6, the set shuts off. Must be turning on a transistor but could not trace due to white paint on board.

Posted on May 30, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Carampman,

Holding channel up/down didn't work for me. First lost power after multiple seconds of power on. Local authorized dealer could not fix it. Sent this lemon with it's 90 day labor 1 year parts after three months. $140.00 labor, $40.00 return shipping charge and it still failed. Returned it again and it
was fixed. Now after 2 years since purchase, the same problem.

Sharp must have known this was a lemon and made the labor warranty quite short to cover them selves on this lemon.

Posted on Jun 28, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

WHEN I TURN TV ON IT SHUTS OFF IN LESS THAN 10 SECONDS


These sets have a tendency to have bad power supply boards. They have to be replaced as a complete assembly. you should only call out, or take this set to an authorized Sharp repair center my friend. Good Luck

May 25, 2007 | Sharp LC-13AV4U 13 in. EDTV-Ready LCD...

1 Answer

Sharp LC-13AV4U - turn it on and in ten seconds it turns off. Happens every time.


Hello
There is some short with the inside circut of your TV. The short usually occurs with the inverter transformer for backligh bulbs of with video processing section. These tw sections should be checked throrughly to find out the actual short. You must have sound knoledge in digital electronics, skill to work with these section, good quality digital multimeter [analogue multimeter or low quality digital multimeters should not be touched with LCD circuits]. Actually this is not a user repairable fault. If you have all facilities mentioned above check these sections for short. OK.

Jul 02, 2011 | Sharp LC-13AV4U 13 in. EDTV-Ready LCD...

2 Answers

Sharp LC-13av4u will only stay on for about 8 sec.. I ahve checked the caps, on power board


Hi


Thanks for using FixYa. If you have already checked the capacitors on the power supply board and they seem to be fine then it can be a circuit protection issue. If that is the case the unit either turns off after sometime or the sound remains there. To check what is the issues inspect the diodes as they are part of the protection circuit if the backlight misfires. You can also test the components by a voltmeter however, it is only recommended if you have knowledge of internal circuitry. Please note that the TV components consists high voltages even when in off position. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

May 27, 2010 | Televison & Video

1 Answer

Samsung lcd 40 in turns itself off all the time on digital 10


1. check you menu to see if you have the TV in hibernation mode if not. you have a TV that has heat build up after so many minutes. You didn't provide the model number for this unit.

Apr 24, 2010 | Sharp Aquos LC-45GD6U 45 in. LCD HDTV

1 Answer

Lc-13av4u Shuts down 10 seconds


some projection tv's will do this if you do not touch another button within 10 seconds. Power your tv on then change the volume or channel. This should let your tv know that it was not an accidental power on. Hope this helps.

Sep 11, 2008 | Sharp Televison & Video

1 Answer

Aquos Turns off by itself


no. It goes black, then about 5-10 seconds, it turns itself back on.

Jan 01, 2008 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

2 Answers

No picture, but power is on...


How many times does the POWER led blink per sec? (dont worry about the OPC)

2x = power supply (not as expensive to fix)
3x = Main board (expensive to fix)

Oct 20, 2007 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

Not finding what you are looking for?
Sharp LC-13AV4U 13 in. EDTV-Ready LCD Television Logo

849 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75767 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jaime Hernandez

Level 3 Expert

2336 Answers

Are you a Sharp Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...