Question about Sharp Televison & Video

1 Answer

My Sharp Aquos 70 inch tv will not turn on. The little chevron shaped light on the front bottom center of the tv keeps flashing 2 slow blinks followed by 2 fast blinks?

Sharp Aquos 70 inch LED tv won't power on? The power supply board was replaced this past December tv worked up until a few days ago but now it won't power on and the little chevron light on the front of the tv is flashing 2 slow blinks followed by 2 fast blinks? Any body known what the flash codes mean? Could this be another PS issue? Please help!

Posted by Chris on

Ad

1 Answer

Ramona Ameen

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Thank you Much. I called SHARP for service code reading with absolutely NO help. Was told to call a service tech. I can fix this and at least know what to look for.

Posted on Jan 27, 2020

Ad

5 Related Answers

Anonymous

  • 148 Answers

SOURCE: Sharp Aquos LC30HV4U stopped working

You are in luck!..The units poowerboard is overheating and since you have it taken apart already this is the fix for you!...Check the popped capacitors in the metal box you find on the back of the actual screen inside the unit...This is a very common problem,m so I've helped many this way and wrote a general post on the how to's of diagnosing and repairing the problem, follow these steps and your tv ill be good as new for less than $5.00 before feb 5 th!! :P...Here it goes (please rate if this works out :D).....................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 has helped anyone (or not) then please rate, thank you!

Posted on Feb 03, 2010

Ad

Anonymous

  • 1 Answer

SOURCE: Philips 42PF7220A/37 42'' TV (LED flashes red 7 times)

Five buck solution; If you have any tek skills at all and are feeling adventurous; UNPLUG THE POWER, remove the back panel; You will be faced with the mainboard. In the lower right quadrant you will see two small capacitors, like tiny yellowish coke cans. If these are bulging, there lies your problem. These must be replaced. If you have no soldering skills, take only the mainboard to a fixit shop and have them solder in the two capacitors easily found on line. No guarantee's but worth a try

Posted on Dec 14, 2009

Anonymous

  • 53 Answers

SOURCE: No POWER

How many times does the POWER led flash per second? (Dont worry about the OPC).

1x (steady constant blink) = Lamps or inverters
2x = Power Supply
3x = Main Unit

If i am reading it correctly, looks like the POWER led is flashing 2x, which means it is a power supply failure. Either way, your TV needs to have a board replaced, there isn't anything you can do to fix it yourself. Try locating your local sharp authorized service center to repair your TV (1-800-237-4277)

Posted on Mar 16, 2008

Anonymous

  • 138 Answers

SOURCE: philips 42pf7321d/37 blinking power board question

The probleis with one of the maina boards and trouble shooting would have to be done to see which board is bad.

Posted on Aug 19, 2008

Chi Chu

  • 8457 Answers

SOURCE: We have a Sharp Aquos LCD TV 42 inch. When I

Call Sharp for warrenty repair.This problem very common in Sharp tv.Picture will come on turn power on/off button few times will work.But still under Wareenty call to Sharp to replaced the main Tuner Signal board.

Posted on Jan 15, 2010

Testimonial: "Have tried turning on/off a few times but still doesn't work. thanks anyway"

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Sharp aquos tv chevron flashing but tv wont come 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 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.
http://electro-medical.blogspot.com/
If blinks continue without any pause, the main board is faulty.
0helpful
1answer

Power light comes on along with OCP light. No screen or sound. internal switching noises coming from inside the tv

Sharp TV - Flashing OPC & Power Lights - YouTube

? 0:50
https://www.youtube.com/watch?v=BH1OcQ6dIEE
Jul 1, 2011 - Uploaded by Tweetssun
Sharp Aquos TV flashing a OPC & Power Lights in a pattern of 3 flashes, ... Sharp Aquos LC-32D44 - One blink lamp error - Nopicture or sound - Diagnosis ... Repairing Flat Screen TV - Blacked out with blinking red light ...Missing: 32dv22u

Sharp lcd tv power button flashing - HDTV - Streaming Video & TVs ...

www.tomsguide.com/forum/54708-4-sharp-power-button-flashing

Feb 8, 2012 - 7 posts - ‎3 authors
We have owned a Sharp 32" LCD TV for about two years. ... However a quick Bing search shows that the blinking green light usually means a bad power board, which seems ... No picture, no sound, just a black screen and two blinking green ... a cable surge block on the coax where it comes into the house. Sharp lcd tv power button flashing - Digital TV
19 posts
Oct 14, 2012
Sharp hd tv blinking power no picture - Digital TV
2 posts
Jan 7, 2012
More results from www.tomsguide.com
Missing: 32dv22u

Sharp Aquos LC 42DH77: Inverter, Backlight, Power and ...

www.normsweb.com/tektips/42dh77.shtml

0helpful
1answer

The picture on my sharp aquos tv will not display. The power light just flashes and the tv remote and power button will not turn on the screen. Menu on both will not work either

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.
http://electronicshelponline.blogspot.com/
http://electro-medical.blogspot.com/
Blinking codes details of many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.
0helpful
1answer

Have a sharp aquos Quattro 70 " that won't come on. Power light on front is flashing a quick flash then a little longer flash. Any ideas?

We call that one fast and one slow. The only way to know the cause is going into the service menu if possible. To do that you need to "force" the TV on. These are things a repair shop should do. Going into the service menu without knowledge could permanently damage the TV.
1helpful
1answer

Tv flashing lights

Blinking codes to Sharp TV is described in detail by this site. Check it. http://electronicshelponline.blogspot.com/
0helpful
1answer

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
5helpful
1answer

We have a Sharp Aquos LCD TV 42 inch. When I

Call Sharp for warrenty repair.This problem very common in Sharp tv.Picture will come on turn power on/off button few times will work.But still under Wareenty call to Sharp to replaced the main Tuner Signal board.
7helpful
1answer

No POWER

How many times does the POWER led flash per second? (Dont worry about the OPC).

1x (steady constant blink) = Lamps or inverters
2x = Power Supply
3x = Main Unit

If i am reading it correctly, looks like the POWER led is flashing 2x, which means it is a power supply failure. Either way, your TV needs to have a board replaced, there isn't anything you can do to fix it yourself. Try locating your local sharp authorized service center to repair your TV (1-800-237-4277)
Not finding what you are looking for?
Televison & Video Logo

Related Topics:

2,845 views

Ask a Question

Usually answered in minutes!

Top Sharp Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76823 Answers

Cindy Wells

Level 3 Expert

6394 Answers

Ekse

Level 3 Expert

13435 Answers

Are you a Sharp Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...