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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What is the value of r718 in the power supply of sharp crt tv 29v-ft95s?


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
http://schematicscom.blogspot.com
Circuit diagrams of many popular brand TVs and other devices are given.

Sep 13, 2016 | Sharp Standard (CRT) Televisions

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I HAVE SHARP COMPANY 21 INCHES CRT MY FRIEND TV SET PROBLEM IS SET DEAD IN POWER SUPPLAY TRANSISTER 1886 REPLACED AFTER POWER SUPPLAY IS OK FBT ARCKING THEN IMMEDIATLY SET SWITCH OFF SET IN CIRCUIT R6


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/

Nov 21, 2014 | Sharp Standard (CRT) Televisions

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 Standard (CRT) Televisions

1 Answer

Power supply problam solution


What is the number of regulator IC uses with the power supply to this set? If you wish to get details about how to troubleshoot SMPS power supplies, check this link. There is a recent post about it. Check it.

Mar 21, 2013 | Sharp Standard (CRT) Televisions

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Hi I have the sharp 60inch, when i power on there is nothing on the screen, so it is the MB problem or one of the Resistor is opened or the LED are burned. Thanks


your explanation is saying that you have a dead set.it can be what you mention.but check your power regulator.or the following componets.horizontal output transistor,flyback,10 mf cap in the power supply and there is another 10mf at the input of the flyback along with a diode.there is also a resistor in the same area that you need to check.if that does not not solve your problem take out the microchip the number on the board is 506 when that is damage it can cause your set to dead.around that same ic there is a diode and a little transistor check them if they are shorted they can be the culprit that damage your microchip ic.

Mar 06, 2011 | Sharp Standard (CRT) Televisions

1 Answer

Have Ge model 52GW945 tv, it went blank no picture, nothing, I checked fuse its ok what next


Check the swithed mode power supply section. Some sets uses Ics for control the power regulation, while others uses transistors as oscillators and choppers. If the power to the oscillator section of the SMPS is absent, the supply system won't wake up. So many reasons are there. You just check the resistor, usually connected from main DC rectified supply, to energise the oscillator section of the SMPS. In most sets it may be two resistors in serial, usually 270k 1W*2. If any one of this get opened, the power supply will not start up. Check it first and preceed. If the set uses Ic as regulator controller, check the positive supply voltage at the respective pin of the Ic.

Oct 15, 2010 | GE Standard (CRT) Televisions

2 Answers

Sharp TV 29V-J200S Schematic Diagram


what kind of schematic are you looking for? I did find this one here but i don't know if it is what your looking for. try this website:
http://www.nodevice.com/manual/sharp/70ES04S_CD_GBpdf/get42400.html#
it is a circuit diagram hope it helps you out

Tom

Dec 19, 2008 | Orion1934 19" TV

1 Answer

Sharp colored tv


check the b+ supply of your flyback if they have check the horisontal transistor. check also if they have 5v supply in the system and 9v in the chroma ic or replace the memory ic.please reply.

Aug 08, 2008 | Sharp 25R-S100 25" TV

1 Answer

Sharp-model-29v-j200s


did you ever check the jungle ic supply? that is 5volt if the 7805 ic is over voltage replace it!

Sep 28, 2007 | Standard (CRT) Televisions

1 Answer

Sharp 27N-S300 TV problems


This could be several things, but most likely a burned loose resistor or bad solder joint. All of which causes an inoperative power supply with the result of having a "dead" set. It would have to be checked out to find the problem. Stargazer

Jan 11, 2007 | Sharp 27N-S300 TV

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