Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > General Electronics Technical Discussion
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 12-13-2016, 09:41 AM   #1
capwizard
Badcaps Veteran
 
capwizard's Avatar
 
Join Date: Jun 2016
City & State: Arizona
My Country: USA
I'm a: Knowledge Seeker
Posts: 928
Default Sharp LG Vizio edge led tv repair tips.

Sharp LG Vizio edge led tv repair tips.

Sharp LC60LE660U power does not turn on. Because the protection circuitry has been activated three times consecutively by edge LEDs failure. Push Vol down, channel up to reset.

Easy as 1-2-3. (for PRO only)

1. make sure the problem is Eled strips.
By push Vol down, channel up and power trick to start it, you will see the screen blink briefly. Dummy tester at post #7
http://www.badcaps.net/forum/showthread.php?t=58769

2. Used 852D hotair gun change the bad LEDs. Temp: 475F air:2

3.reset again & update the TV .


Conclusion: Not knowing the TV at shutdown mode, as a module Tech am I , I ordered the all boards still not fix the TV. I am hoping someone does not make the same mistake like I did. After this lesson, I've fixed more than 10 of them.

service manual LC-52LE640U,C6400ULC-60LE640U pdf
http://diagramasde.com/diagramas/otr...c-80le844u.pdf
Attached Images
File Type: jpg 20161211_103633.jpg (459.9 KB, 20 views)
File Type: jpg 20161212_114723.jpg (414.8 KB, 16 views)
File Type: jpg 20161212_121052.jpg (331.0 KB, 17 views)
File Type: jpg 20161212_140609.jpg (399.0 KB, 16 views)
File Type: jpg 20161212_140613.jpg (339.5 KB, 13 views)
File Type: jpg 20161213_075445_Burst01.jpg (460.3 KB, 16 views)

Last edited by capwizard; 12-13-2016 at 10:17 AM..
capwizard is offline   Reply With Quote
Old 08-05-2018, 03:39 PM   #2
rddube
Aspiring Expert
 
Join Date: Jun 2013
City & State: Montreal, Quebec
My Country: Canada
Line Voltage: 120VAC
I'm a: Knowledge Seeker
Posts: 413
Default Re: Sharp LG Vizio edge led tv repair tips.

Hello Capwizard,

I wonder if you can help me. I have a Sharp LC60LE660U that doesn't power on and I suspect it is the same problem you describe here. How much dissassembly is required to access the leds and change the bad ones? Also which leds do I need to get? I checked the service manual but it doesn't say.

Any help you can provide would be greatly appreciated. Thank you!
rddube is offline   Reply With Quote
Old 08-05-2018, 03:59 PM   #3
sam_sam_sam
Badcaps Veteran
 
Join Date: Jul 2011
City & State: Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 1,028
Default Re: Sharp LG Vizio edge led tv repair tips.

This where a 50 volt @ 5 amp Lab power supply comes in handy I bought one about a year ago because I had a LED module I need to test because I thought it might be the power supply problem and I was right
__________________
9 PC LCD Monitor
6 LCD Flat Screen TV
30 Desk Top Switching Power Supply
10 Desk Top Power Supply
10 Battery Charger Switching Power Supply for Power Tool
6 18v Lithium Battery Power Boards for Tool Battery Packs
1 XBox 360 Switching Power Supply and M Board
25 Servo Drives 220/460 3 Phase
6 De-soldering Station Switching Power Supply 1 Power Supply
1 Dell Mother Board
15 Computer Power Supply
1 HP Printer Supply & Control Board * lighting finished it *


These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

1 Over Head Crane Current Sensing Board
2 Hem Saw Computer Stack Board

All of these had CAPs POOF
All of the mosfet that are taken out by bad caps
sam_sam_sam is offline   Reply With Quote
Old 08-06-2018, 02:55 PM   #4
rddube
Aspiring Expert
 
Join Date: Jun 2013
City & State: Montreal, Quebec
My Country: Canada
Line Voltage: 120VAC
I'm a: Knowledge Seeker
Posts: 413
Default Re: Sharp LG Vizio edge led tv repair tips.

ok, I checked the leds (finally dug in) and to my surprise, none of them are bad. I powered the tv without the panel and they all come on bright and stay on. So my problem is not the leds.

What do you think it could be, as when I power on, all I get is a flash of the backlights and then the power on led stays on white without blinking of any sort. I can even turn the tv off with the remote control. What else could it be?
rddube is offline   Reply With Quote
Old 08-06-2018, 03:03 PM   #5
sam_sam_sam
Badcaps Veteran
 
Join Date: Jul 2011
City & State: Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 1,028
Default Re: Sharp LG Vizio edge led tv repair tips.

Can you please provide some pictures of the the boards in this tv
sam_sam_sam is offline   Reply With Quote
Old 08-06-2018, 03:06 PM   #6
rddube
Aspiring Expert
 
Join Date: Jun 2013
City & State: Montreal, Quebec
My Country: Canada
Line Voltage: 120VAC
I'm a: Knowledge Seeker
Posts: 413
Default Re: Sharp LG Vizio edge led tv repair tips.

Absolutely, I will have to put it back together first and then I will take photos of the boards and post them. Should I start another thread? Tks Sam!
rddube is offline   Reply With Quote
Old 08-06-2018, 03:31 PM   #7
rddube
Aspiring Expert
 
Join Date: Jun 2013
City & State: Montreal, Quebec
My Country: Canada
Line Voltage: 120VAC
I'm a: Knowledge Seeker
Posts: 413
Default Re: Sharp LG Vizio edge led tv repair tips.

Here are the photos Sam. If you think they are not sharp enough, let me know and I will take better pictures in daylight (it's getting dark here in Canada)

Tks,

Ray
Attached Images
File Type: jpg P1000740.jpg (622.7 KB, 7 views)
File Type: jpg P1000741.jpg (690.6 KB, 6 views)
File Type: jpg P1000742.jpg (634.1 KB, 5 views)
File Type: jpg P1000743.jpg (773.7 KB, 6 views)
File Type: jpg P1000744.jpg (592.5 KB, 2 views)
rddube is offline   Reply With Quote
Old 08-06-2018, 06:08 PM   #8
rddube
Aspiring Expert
 
Join Date: Jun 2013
City & State: Montreal, Quebec
My Country: Canada
Line Voltage: 120VAC
I'm a: Knowledge Seeker
Posts: 413
Default Re: Sharp LG Vizio edge led tv repair tips.

Sam, I started a new thread in the right forum here:

https://www.badcaps.net/forum/showthread.php?t=71144
rddube is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2018
Powered by vBulletin ®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 03:14 AM.

Did you find this forum helpful?