Question about Sharp 25R-S100 25" TV

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Sharp model 29V- FL250s

The problem no power, i replace ic TEA1507P and triac in the power supply but nothing happen still dead set.

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Ac supply track check this ic ac pals track on resister 240k or470k &diode check this track

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I want a sharp 29v 250s schematic diaghram pls

Posted on May 24, 2014

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My question about philips 21 ctv with ic tea1507p at power supply.when first time iplug in the set is run for few second but after that set dead.


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
Type in the brand name of your device, in the search box [at the top right] of the display window. It will make surf easy.

Jul 03, 2015 | Philips Televison & Video

1 Answer

I have sharp tv model 20v-r70m not power on the b+ is ok i try test 9v supply go to ic801 drop the 9v,then i try replace ic801 nothing happen, how to fix this


pls. check if there has 5v ic regulator... also check the open non- electrolytic colored yellow or orange tantallum capacitor near the talc switches and memory ic.if i'm not mistaken.... the capacitor value is 2.2uf 50v.

Jul 14, 2014 | Sharp Televison & Video

1 Answer

My motherboard is dead replaced power supply still nothing


you may got a power spike if so board bad look at the board the caps are they round or flat if rounded on top bad board

Jan 13, 2013 | HEWLETT-PACKARD Hewlett Packard GV34469001...

1 Answer

My TV will not power on but I here when it is plugged in that it has power it will click like it is wanting to power up but nothing happens. I had an electrical storm prior to my problem


The tv power supply board it is dead,u said had an electrical storm in ur area before this problems happen.Yes.Than the tv have a power surge by of the electrical storm already,the storm had a charge sent of an electrical magnatic statics to ur tv and now kills all those sensitive ICS on ur tv power suppply board already.The tv power supply board already dead that the board where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish power supply board for the replacement.

Jul 08, 2011 | Mitsubishi LT-52149 52 in. LCD HDTV

1 Answer

When I use the remote to turn the television on, nothing happens.


This problems happen to all LCD and Plasma tvs.In to 1 or 2 maybe 3 to 4 years old in used.The power supply board have these componnents parts call the capacitors,it will started to bulges up on it top,or puff up on it top.These capacitors are leaking gases and it dead.The tv will not power up and the LED power lite indicator start continuous flashing LED light.U know basic electronic's and soldering?Take the tv aparts where the power cord plug into it that ur power supply board.Searches all around the power supply board and it supporting boards,replaced all those dead gas leakage capacitors.Ur tv will power up normal again and work.Or Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

May 24, 2010 | Panasonic TH-42PD50U 42 in. Plasma EDTV

1 Answer

MITS VS-60609 HAS NO POWER AT ALL (DEAD)


Possible convergence IC loading power supply. Common. Big IC(s) with #s starting STK392(3).

Apr 17, 2010 | Mitsubishi VS-60609 60" Rear Projection...

1 Answer

Sylvania 6842pe blew fuse, replaced fuse, and nothing,no lights, noise, nada. replaced power supply board with the chord attattchment and still no power, no lights, and no noise. Was wondering could it be...


Yes,replaced all the boards that related to the power supply.Useally completely dead,it effect all the ICS in the boards,never able to tell which boards.U are not a tv tech.don't do this everyday's will not have skills or any idea which board is dead.

Apr 06, 2010 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

1 Answer

When the power button the red button flashes but nothing else hap


the red light flashing means the set is in auto shut down, could be a power supply problem or a convergence IC problem. tech should first check all diodes and caps in power supply then replace convergence IC's

Jan 11, 2009 | Panasonic PT-53WX42 53" Rear Projection...

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