Question about Sharp Aquos LC-37HV4U 37 in. LCD HDTV

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Lc-37hv4u blinking red light problem

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Sharp LC-37HV4U not turning on

hold down the input button and volume - while the MAIN POWER BUTTON IS OFF. Then turn on the main power button while those are held down, the light on the tv & avc box will turn green, then immediately let off the 2 buttons and press volume +. Next step is to repeat the process about 20-40 times & the TV WILL WORK!. I have read that this may have something to do with the energy star compliant commads that can changed through the serial port.

Posted on Aug 03, 2008

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Fixe_You
  • 1800 Answers

SOURCE: sharp aquos LC-37HV4U won't turn on just have a red light

when this occurs this is got only meaning: the Ignintion panel is faulty its the board/chip that gives the signal to the TV to start

to replace that part u must a serious soldering skill and and take to much risk cuz u might make more damage on that TV

plz do rate this post as good as u can

Posted on Oct 10, 2008

  • 1 Answer

SOURCE: Sharp Aquos LC-37HV4U red lights stay on and will not turn on

same problem...need help

Posted on Jun 12, 2009

  • 148 Answers

SOURCE: When I turned on my lc-37hv4u tv I got a blinking

The caps (capacitors) in the powerboard are going out. This is a very common problem in all class and price ranges of modern lcd and plasma tv's/ monitor's. I don't know if this problem has been like this for awhile or it just started, but either way, if the tv takes an abnormal amount of time to "warm" up then it most likely will go out all the way sometime in the (near) future. If you have a tiny bit of will and knowledge ypou can open the unit and get to the print board. Examine this for "popped" capacitors, they will have a buldging top instead of a flat one. Im gonna try to include a pic of them here, if i can get it this time, I've tried bfore lol. But you can google image a "popped" or "bad" capacitor and you would be able, with ease, to diagnose if you have any of these. Usually only one or two. Radioshack sells capacitors (couple anyway) for $1.59 each. MAKE SURE the replacement is of the SAME voltage or HIGHER, or you will be right back replacing those 2. Every capacitor has a negative pole marked with an (-) on the side of the capacitor(by one of the "legs", always puit the negative (-) "leg" of the new capacitor in the same hole in the printboard as where the previous negative (-) "leg" of the capacitor was ( a capacitor with the negative and positive "legs" put in backwards will result in the new piece "popping" as sson as you turn it on!!) make sure the "uf" rating (for example the most common popped capacitor is the 1000 uf) is the same as the one you are replacing. I needed 1000 uf, 105 c and 26v (volt) ratings for the 1 capacitor I needed to replace to fix my LG 19" lcd panel monitor I found by the trash that the light came on off, but it didn't come on. I replaced that capacitor with ; 1000uf, 85 c and 36 v (volts0...It works fine eventhough the volts and the temperature rating (36v and 85c) was not the same as the (26v(volt) and 105c ) capacitor I removed !! Further, I've replaced capacitors that had the celcius rating of 105 with the only ones Radioshack had, namely 85 c(celsius) they have been working great, but I'm not sure about any effect, nor have I heard or read (yet?) about that making an urgent difference. Many threads that I've read people have done the same, so we should be ok (my stuff has been running good for a while longer then most brand new ones!.............(all these ratings ; 'uf ' and 'c' etc are on the side of the capacitor you are replacing and on the side of the ones you are replacing them with)...For all this all you need is the cheapest solder gun u can find (I bought one for $7.99 at Radioshack), a camera (to take pictures as you go to remember how to reassemble the unit) and, once you have your materials, 20 minutes to replace 2 or 3 capacitors and you are good to go...Most monitors and tvs (lcd/plasma) I've seen you have to lay flat on the ground/bed/blanket etc, to work on (screen side down). Usually there are 2 or 3 screws (or a few more) to remove, then you will have to carefully (its comes off easily most times)insert a flat screwdriver inbetween the casing and gently pry it up as you go around the whole frame. Sometimes you have to remove the little washer arouind the cable input orso, just be gentle and you cant go wrong. Once insidet here will be a box with wires running to the sides etc...unplug, gently, these wires and open the box. Inside you will find 2 or 3 circuitboards, check them all for "popped" capacitors, replace, reassemble and plug it in....Have fun becoming an overnight tv mechanic lol! ...if this helped any (or not)please rate thank you!

Posted on Feb 03, 2010

lovejoy91
  • 691 Answers

SOURCE: My Sharp lc-37hv4u wont turn on. I just jave red

If you are a DIY then once you pull back off you will see power supply board and there are caps that goes bad in these sets. They bulge out and sometimes explode. You tube has video on how to fix some sets, this is the same procedure

Posted on Jan 03, 2011

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1 Answer

Sharp aquos LC-37HV4U won't turn on just have a red light. I have unplugged the display and the AVC system. Turned back on then get a blinking red light. Turn on at the display and to goes to solid red...


when this occurs this is got only meaning: the Ignintion panel is faulty its the board/chip that gives the signal to the TV to start

to replace that part u must a serious soldering skill and and take to much risk cuz u might make more damage on that TV

plz do rate this post as good as u can

Oct 10, 2008 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

2 Answers

Display powers of with power up of AVC


how many blinks does the red light give in a row? This would be an error code?

The problem for 7 blinks would be an Interface board. Apparently there is a glitch in the interface board that sends signals to the television. Basically the glitch shorts out the board and the t.v wont turn on and you will see the power light blink 7 times pause then 7 more. You can replace the board with a new one and update the software on the new interface board.


If is isn't 7, let me know and I will help you out with this

thanks

Apr 26, 2008 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

1 Answer

My Sharp lc-37hv4u wont turn on. I just jave red light. No image, no sounf


If you are a DIY then once you pull back off you will see power supply board and there are caps that goes bad in these sets. They bulge out and sometimes explode. You tube has video on how to fix some sets, this is the same procedure

Jan 03, 2011 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

1 Answer

My sharp aquos not working tv went off and wont


these flashing lights are error codes set by the manufacturer..
Call sharp...they will tell you the problem

Apr 26, 2010 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

1 Answer

Can I use the AVC system of a Sharp LC 30HV4U on a LC 37HV4U TV


i have the sharp lc-30hv4u but i dont have tha avc box i need buy the box if do you have i can buy call me 702 3280184 thanks

Oct 15, 2009 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

3 Answers

Sharp LC-37HV4U not turning on


hold down the input button and volume - while the MAIN POWER BUTTON IS OFF. Then turn on the main power button while those are held down, the light on the tv & avc box will turn green, then immediately let off the 2 buttons and press volume +. Next step is to repeat the process about 20-40 times & the TV WILL WORK!. I have read that this may have something to do with the energy star compliant commads that can changed through the serial port.

Dec 11, 2007 | Sharp Aquos LC-37HV4U 37 in. LCD HDTV

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