Question about Sharp LC37SB24U 37 in. LCD TV

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My sharp LC37sb24u power light just keeps blinking. I have tried to unplug it.

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It is blinking because it is sensing shorts circuits some where or it has power supply failure.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

Posted on Oct 21, 2010

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Our sharp tv model # LC-42D72U power light flashes green but there is no sound or picture. Looking for your expert opinion on what could be wrong so we can get the part ordered. The board with the power...


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iFixitOct 3, 2014 - The Sharp LCD TV LC37SB24U set worked until off button on remote ...The green light is blinking any time power cord is plugged into the wall outlet. ... It does sound like either a bad inverter board or a bad power supply. .... On the clad sidethere is no connections or ribbons that indicate hard current draw ...

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Tv has no picture. When turned on, the OPC and power blinks. Can you tell me what the problem is?


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

Aug 01, 2014 | Sharp LC37SB24U 37 in. LCD TV

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Power, I can hear the relay keep clicking every 2 second. will not power up.Any idea as to what can cause that?


Sounds like main board fault. Contact the authorized service center. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/

Jun 17, 2014 | Sharp LC37SB24U 37 in. LCD TV

1 Answer

TV will not stay on


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating, to many popular brand TVs and other devices. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given.

Mar 10, 2014 | Sharp LC37SB24U 37 in. LCD TV

1 Answer

I am currently working on a Sharp Lc37sb24u. I was originally thinking it had a bad inverter board but now I am not so sure. When I turn the tv on the picture comes up with audio for about 2 seconds the...


Did you check the service manual troubleshooting guide yet. You can try disconnecting the power to the inverter board and see if it will stay on and have sound.
Service manuals:
http://elektrotanya.com/?q=showresult&what=Sharp%20LC37SB24U&kategoria=&kat2=all

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

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1 Answer

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This problems it not a fuse problems or u would have no power to the tv at all.If ur tv it is on plug into a power surger protector.Tries the tv unplug,replug it back about an hour later for the tv to do a resetting itself back to the factory setting.50/50 this tv will power up and work again.If the tv still have same problems,than the tv main tv Tuner signal board it is shorted and the causes and the problems.The tv main tv Tuner signal board it is the board that where the tv incomming broadcasting signal wire plug into it.You can do and have some basic mechanicals skills like take things aparts and putting it back togther wright?Yes,tries websites like Shopjimmy.com,Ebay.com to buy a refurbish tv main tv Tuner signal board for the replacement.

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2 Answers

TV will not turn on, the power light is blinking green


Unplug,replug the tv about an hour later.The tv now,it resetting itself back to factory setting and work now.Not,than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Sep 06, 2010 | Sharp LC37SB24U 37 in. LCD TV

1 Answer

Blinking power light on LC-32SB24U. Power light blinks green, but TV does not comeon


It may be detecting short circuits in the power supply or in the backlight inverter board, try disconnecting the power cable to the backlight inverter board to see it you can get it to come on without the pictures.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

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1 Answer

My sharp LC37sb24u power light just keeps blinking. I have tried to unplug it.


The sharp tv have a very common problems,couple years the Main Tuner signal board have problems or dead.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish Main Tuner signal board for the replacement.

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1 Answer

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The led blinking is an error code from the internal processor - defining the nature/area of the TV's internal problem.
A service manual (if available) will de-cipher the codes.
The tv will probably need to be repaired by a service technician.

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