20 Most Recent Sharp LC52LE640U 52 inch 120hz AQUOS LED TV [LC-52LE640U] Questions & Answers

hi does your tv have usb port if so, go to the sharp website look enter the model number of your tv look for firmware for your tv download it, then load it on to a usb flash drive, thanks shaun

The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size. 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/ http://electro-medical.blogspot.com/ Blinking codes details of many popular brand TVs are given. Surf the site with patience. Some models Sharp TVs uses Philips kit. If yours is such, the blink count procedure is entirely different. It is not direct. 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. 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.

I would start by checking power supply voltages which should be printed near the output connectors.

http://www.pandora.com/restricted Try this link to know more. Electro help

It's probably one of the cathodes going to hell

Question edited for a lot more clarity! All questions need full 'make model (what it is)' please.Question moved to Sharp Aquos category.This is their support page which is pretty bad. There is an email link. You don't say WHY you want a firmware update, but firmware in not supplied for televisions according to our Fixya television expert Larry. Firmware updating is fraught with danger and should not be undertaken lightly even when it is available. Sharp only supply software updates, no firmware.https://www.sharpusa.com/Support/ProductDetail.aspx?model=LC-60E78UNSOFTWARE updates are here in the manual on this page and continues in detail on the next page.https://www.manualslib.com/manual/318507/Sharp-Aquos-Lc-60e78un.html?page=24..

Page 29 has mention of it, but nothing regarding text size. http://files.sharpusa.com/Downloads/ForHome/HomeEntertainment/LCDTVs/Manuals/40LE653U_32LE653U_OM_EN.pdf There is a video here that mentions customizing. https://www.google.com/search?q=Sharp+Aquos+TV+LC-32LE653U%2C+change+subtitle+size .. ..

Go to Menu select function or Service and checked auto demo is on. If it is on make it OFF

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/ Blinking codes details to many popular brand TVs are given. Surf the site with patience.

Best advice here. Don't try to repair it yourself. https://www.fixya.com/support/r29790007-repairing_own_television ..

I found this.

LCD TV Repair Tutorial - LCD TV Parts Overview, Common ...

https://kzblack.info > green > lcd-tv We are going to be giving a general overview of LCD TV Repair in this video ... now recently started showing message "Do not turn off scan" and never ends.

No, you just told the television to format the USB into its own formatting format. It doesn't back it up for you. You should have purposely made a back up of everything on the USB memory stick to your computer. If you haven't done that, you can put the USB stick into the computer and use 'Undelete' software. Recuva is pretty good and the ones that normally say 'Free', mean they are free to see what is can find, but not to restore is back. https://www.google.com/search?q=%27Undelete%27+software Recuva https://www.ccleaner.com/recuva Everyone should have CCleaner! ..

Not sure you can

https://elektrotanya.com/cgi-bin/download2.cgi?dk=wgzgtxz9xfakb6w5s2gbjalr7l6hmh579r0th7lfiongeyjc&fid=105643&file=sharp_aquos_lc32_40_46_52le700un.pdf Should be the faulty memory IC. Download its service manual by the above link, and refer it. If you wish to get some details; check the sites linked here. https://elektrotricks.blogspot.com/ https://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault. Search the site by type in the Brand Name of your set, in its search bar at the right side column, and press enter. See it in by Webview with mobile or by desktop. Mobile View has no search box. Screen-shots to defective LCD panels are given. You can see and compare to that to your TVs', and can make sure about the fault to an extent.

This model was known for bad capacitors in the power board, have you tested them and or power supply voltages?