Question about Sharp LC-15AV4U 15 in. LCD Television

2 Answers

Sharp 20mu14 tv powers up with a burst of eht then shuts down right after(trying to find some schematic or service info but to no avail)

Posted by on

  • Anonymous Feb 15, 2008

    Turn it works fine for 5 seconds then shuts down. Top of display screen is darker than the rest of the screen too.

  • Dharmatma Feb 28, 2008

    I have a 40" Toshiba Theatre wide TV, I bought in the 1998 . The TV turns on, plays for few minutes, then goes off leaving the red on indicator light blincking which can not be turned off by the remote control or the manual swicth on the TV. I have to unplug the power source then it turns off. Some times it workd good for few hrs and again the same problem. Has any one any clue to fix the problem? Plz help. I am intending to buy a new TV at the moment..atelast for the next two years. Mahesh (Mack) Lad email add data_max_99@yahoo.com














×

Ad

2 Answers

I have a tv sharp lc-15av4u

Posted on Mar 06, 2008

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 4 Answers

PROFESSIONAL REPAIRER OF:
* cd-vcd-dvd-ld player.
* colour tv, Lcd/plasma tv.
* projection tv.
* prologic AMPS
* Grill/microwave oven's
* Digital proffesional camera.
* Digital camcorders.
* LCD/Digital projector.
* Hi-Fi music system.
* FAX machine.
* printer/scanner/copier.
* play station (PS1-PS2).
* X-BOX360.
DIAL..........: 9820380682

Posted on Jan 23, 2008

  • sajid shaikh Jan 23, 2008

    PROFESSIONAL REPAIRER OF:
    * cd-vcd-dvd-ld player.
    * colour tv, Lcd/plasma tv.
    * projection tv.
    * prologic AMPS
    * Grill/microwave oven's
    * Digital proffesional camera.
    * Digital camcorders.
    * LCD/Digital projector.
    * Hi-Fi music system.
    * FAX machine.
    * printer/scanner/copier.
    * play station (PS1-PS2).
    * X-BOX360.
    DIAL..........: 9820380682

  • sajid shaikh Jan 23, 2008

    PROFESSIONAL REPAIRER OF:
    * cd-vcd-dvd-ld player.
    * colour tv, Lcd/plasma tv.
    * projection tv.
    * prologic AMPS
    * Grill/microwave oven's
    * Digital proffesional camera.
    * Digital camcorders.
    * LCD/Digital projector.
    * Hi-Fi music system.
    * FAX machine.
    * printer/scanner/copier.
    * play station (PS1-PS2).
    * X-BOX360.
    DIAL..........: 9820380682

×

Ad

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,
A 6ya expert can help you resolve that 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.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
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

Need a downloadable manual for this piece. Lightning struck house now have a fried part...


What model TV is it from ? The Powers Supply schematics are usually found in the TV service manuals. The information in the service manuals is very limited and you most likely won't be able to get a full schematic of the PS.
Alternativly buy a replacement board. They seem to be widely available.
- http://www.ebay.com/sch/sis.html?_nkw=Sharp%20ADTVA2415SA4%20LC42SB48UT%20Power%20Supply%20Board&_itemId=360718249225 -
It may be the cost effective answer as service manuals are quite often, not cheap.

Nov 03, 2014 | Sharp ADTVA2415SA4 Power Supply

1 Answer

What str used in sharp tv


If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/Pull up older posts. Power supply schematics to many popular brand TVs are given. Sharp itself uses many STRs. You can compare the schematics and can get the details.

Dec 31, 2013 | Sharp Televison & Video

1 Answer

Sharp tv power supplay ok no EHT what is the probleb?


Possible a Dry joint- have you tried hitting the TV-

Does it come on intermitently?

If not it could be a problem with the FBT.

This will be an obsolete part if so.

Hope this helps

Welly 250

Jul 02, 2012 | Sharp Televison & Video

1 Answer

Vizio E421VA shuts down immediately after turn on


They are not usually available except by authorized service centers as no parts are really sold and only circuit boards are available in most cases.

May 23, 2012 | Vizio E421VA 42 in. LCD TV

3 Answers

Tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light position...


tda9380ps /n3/3/1664 using in sharp tv power supply ok ,but no EHT ,the power LED are glowing red light press program key to change green light to return in few miniutes to standby in red light

Aug 30, 2011 | Sharp 21" Multi System Stereo TV

1 Answer

When I open my RCA TV 25648 it shut down after a few second. Is there any way to fix it ? Thanks


IF LED IS BLINKING then............. usually after 4 or 5 yrs EHT ( transformer that supplies voltage to tube ) becomes weak - then TV won't get ON.. means no picture no sound ..but LED blinks - in some TVs along with EHT 1 or 2 components like resistor, transistors, etc will also gets deffective ..........IF LED IS ALSO OFF then on main board in power section area some component is deffective ... MAIN BOARD SHOULD BE CHECKED COMPLETELY........ so solution is TV circuit board has to be checked to find whether only EHT is deffective or other components are also deffective - price of EHT will be between Rs.250 (US$ 5) to Rs.600 ( US$ 12) ........iam from bangalore (09986222774, sathyavijayasarathibabu@ymail.com ) .....i don't have any idea about EHT component's price & service charge in your area........this problem cannot be solved by user unless user is a technical person having idea about components (resistors, transistors,diodes,...etc..), having multimeter , soldering iron & other tools...so my suggestion call TV service engineer or contact RCA service centre.........

Apr 21, 2011 | RCA F25648 25" TV

1 Answer

X-flat, silver white 21inch. it shows power light but no picture


usually after 4 or 5 yrs EHT ( transformer that supplies voltage to tube ) becomes weak - then TV won't get ON.. means no picture no sound but LED blinks - in some TVs along with EHT 1 or 2 components like resistor, transistors, etc will also gets deffective - so solution is TV circuit board has to be checked to find whether only EHT is deffective or other components are also deffective - price of EHT will be between Rs.250 (US$ 5) to Rs.600 (US$ 12) - iam service engineer (computers, laptops, printers,etc) - bangalore - domlur - 09986222774 - sathyavijayasarathibabu@ymail.com - if you are in bangalore then you can call me for service - i think you are living somewhere in america/australia/.... - problem is simple but i don't have any idea about EHT COMPONENT's price & service charge in your place.......i have only 1 suggestion for you - call tv service engineer from near by area ..iam sure he can solve within 3days...if he fails to repair then you think about buying NEW TV

Apr 13, 2011 | Sharp Televison & Video

1 Answer

When we try to turn on the tv, it chirps and shuts off


Power supply (switched mode) is shutting down due to either a fault within the power supply itself, or a problem in the line stage (EHT) and the current protection circuit is shutting down to prevent further damage. Flyback diode often fails shutting the power supply down.

A circuit diagram is required in order to repair this.

Sep 12, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Rca truflat tv goes blank after 30 minutes, then I can't get a


When this goes off is there a loud crack? If so perhaps the B+ supply is increasing increasing the the EHT to the CRT and the crack is the voltage across the spark gap in the crt base jumping to chassis/earth shutting down the TV. Or perhaps just a dusty/dirty eht cap, again EHT discharge, or could be a eht tripler being faulty. Further investigation with the aid of a service manual is required I am afraid.

Sep 12, 2009 | RCA 32F531T 32" TV

1 Answer

Tv set won't start up


as your reg. output is 40v & you have checked every possible things responsible for it. my suggetion is that first you isolate power supply from hor.section & see if power supply output is ok. if it is ok then check for short & leakage in h/output like 1 hor.output tr. 2 diode or cap in eht winding. 3 check for print near eht transformer. 4 disconnect yoke connector & check . 5 & finally eht or flyback transformer.

Sep 29, 2007 | Philips Magnavox 27MS343S 27" TV

Not finding what you are looking for?
Sharp LC-15AV4U 15 in. LCD Television Logo

383 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sharp Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75311 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...