Sharp tv 70 inch wont turn on blinking 5 times fast 2 times slow

Sorry I don't work on Sharp sets so I don't know what the flash code means, do some searching online for what the issue is

This is an error code! Look in the manual as to the reason!

Throw away product like most modern sets

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.

I have a 70 inch aqua sharp tv. The model number is LC-70LE857U. The stand by light blinks 2 times slow, 5 times fast. Tried resetting the TV.. Nothing changed. Please help.

change the panel

Those 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/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

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/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
Some models of Sharp TV uses Philips main board. If your TV has such a board fitted, you should follow the blink count procedure for Philips. From your description itself, I do understand that your TV is fitted with such a board. The blinking code procedure seems so.
Counting of number of blinks to Philips TVs is entirely different to that of other brand TVs. It is not a direct count procedure. The site have details about how to count the number of LED blinks [Fault Codes] to Philips brand TVs are given; along with details of the faulty circuit location.

hold the menu and input buttons simultaneously for 5 seconds. the tv will blink an error code
Error Code Probable Cause
12 Normal Operation - No Error Detected
21 X-Ray Protect
22 Short Protect - likely convergence IC failure
23 Loss of Horizontal Deflection
24 Loss of Vertical Deflection

Fast Blink for 70 sec. After AC is applied = Normal - DM μPC is booting up
Fast Blink (doesn't stop) After AC is applied = TV μPC is running, but DM failed to boot up
Slow Blink Set is Off = Normal - Timer is set for Automatic Turn ON