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

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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)

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Re: sharp 20mu14 - Sharp LC-15AV4U 15 in. LCD Television Flat Panel Televisions

I have a tv sharp lc-15av4u

Posted on Mar 06, 2008

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Re: sharp 20mu14

* 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

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Samsung pn50c490 loud pop and shut down

Very difficult to go on as little as this. Not sure you are technical enough, but if you know anything about electronics and a slodering iron, perhaps you could manage this one.
Often in power supplies a electrolytic capacitor will burst and can't work correct, shutting the power supply (and everything connected) down.
When you know how to open the flat screen, perhaps you can see what capacitor plopped.

If you don't have any electronic or electric skills, please don't open the machine. It can be very dangerous, even when you unplugged he flat screen. That is something you always must do before working on an electric or electronic device.
But even if you see a defective part and you don't know exactly what it is, you can't replace it.
I did find schematics and pictures of several flat screens on the net, just by googeling the right name. Helped me several times by repairs, and I did not need the full service manual, because of that.

PLEASE if you are not skilled in electric or electronics, don't open the thing and goto a repair store.

Oct 27, 2013 | Flat Panel Televisions

1 Answer

I want EHT number. i lost my t.v EHT number

If by eht you mean high voltage transformer, Google the model number with "parts" to see what is available or contact Philips.

Jul 19, 2013 | Philips Flat Panel Televisions

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

1 Answer

I have a problem about eht damage in hyundai colour tv model no. CTVHY22FW01 so many times. And bigger problem is eht no. is not available in your company's service station. So how to solve this problem?...

Your question is not clear.
However if the main EHT drive transistor failing often check all the diodes and capacitors. Sometimes you can not check the diodes for reverse leakage. Better replace the diode with identical type and part no.

If your EHT coil is failing, buy a similar coil with identical coil resistance value. Generaly new EHT coil can not fail in a short span.

Take care while handling E H T areas. It is more than 25,000 volts A C & DC.
Extreme caution needed while disconnecting the suction cup on the
picture tube. Switch off wait for few minutes every time you attempt.

Aug 10, 2010 | Flat Panel Televisions

1 Answer

Standby light flashes twice

The power supply board may have been damaged. Try leaving the TV unplugged overnight so the Tv can discharge and reset itself. If this doesn't work, the power supply board may need to be looked into by a TV repair shop.
If you have some electronic experience and wish to try to fix it yourself, you can most times find a Service Manual for your TV over the internet for less than $20. It will have schematics, diagrams and parts list for your TV.

Aug 21, 2009 | Sony Bravia KDL-40V5100 40 in. LCD HDTV

1 Answer

Need schematic for Vizio VW37L Hdtv

Im having the same problum with my Vizio VW32L
My back light stays on just no picture.. It only turn off if i unplug it.

I need to get a new main board $149

What your tv repair man needs is a Parts & Service manual you can find that here..

The Manual will have the schematics and block diagrams..

If your repair man needs you to find this info, then maybe you should find a new one?

Dec 16, 2008 | Vizio L37 Television

1 Answer

Frozen digital screen

Set TV to standby and press Info, menu, mute then power. The set should turn on with the service menu available scroll down until you select reset press right hand arrow next to enter and then enter. TV will turn off. When switched on it goes into Plug and Play mode to reset the analogue and digital tuner. Allow a full reset then you should be ok.

Dec 21, 2007 | Samsung LE26R74BDX 26 in. HD-Ready LCD...

2 Answers

Panasonic Viera Plasma TH-42PV7HS- Shutting down


Oct 30, 2007 | Sony KLV-S23A10 23 in. LCD HDTV

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