Post The Led Backlights Your Fixing Here.

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

eBay item number:252492958756 C type LED

Cheers mate

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

Where did you get the leds for this?

I had the 32" version of the set smashed which used the same Leds so just unsoldered them and used on this set.

[flocko]

Re: Post The Led Backlights Your Fixing Here.

eBay item number:252492958756 C type LED

[Hamie]

Re: Post The Led Backlights Your Fixing Here.

Lg 42LB550 uses 5v type Leds with huge lenses, two open circuit oddly enough. Replaced with equivalents and stuck lenses on with hot glue set sorted and the image on the Lcd is nice and set the Bl to 30 and Lcd brightness to 60

Also done others but they were just Vestels so nothing worth listing

Where did you get the leds for this?

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

Lg 42LB550 uses 5v type Leds with huge lenses, two open circuit oddly enough. Replaced with equivalents and stuck lenses on with hot glue set sorted and the image on the Lcd is nice and set the Bl to 30 and Lcd brightness to 60

Also done others but they were just Vestels so nothing worth listing

[mmartell]

Re: Post The Led Backlights Your Fixing Here.

LG 50LN5300 had one open led in upper strip assembly. Repaired with a led from a Samsung strip.

Sharp Aquos 60" with suspected led problem up next.

[budm]

Re: Post The Led Backlights Your Fixing Here.

Thanks to the help of this forum and some videoes of Mrreeceyburger on youtube I succesfully replaced 4 smd diodes with a heatgun on a Panasonic TX-L42B6E tv (according to customer a little more than two years old).
The backlight was made by LG with a total of 50 diodes on strips.

The rectangular diodes I used I bought from Aliexpress.com:
Product: EVERLIGHT LED 3030 lamp beads 1W LCD TV Backlight Lamp beads 3V cool white With Zener Pressure 30cps

http://www.aliexpress.com/item/LED-3...8.0.104.S7FGQf

The diodes had reversed anode/cathode comparing to the original diodes.

The failed diodes was spread out and after replacement I could not see any lightspots or the like on the screen during my tests.

I charged 1400SEK and left only 1 month of guarantee because of the likelihood of more failing diodes.
Cheers

Thanks to the link for the LED. Do you know if the big pad is ANODE or CATHODE? It is very important info for how the LED will dissipate the heat.
SAMSUNG LED had large pad for CATHODE (I just use them for repairing SAMSUNG a couple days ago), and the LG LED has large pad for ANODE.
Too bad the link does not give the part number, details spec, and the foot print details.

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

Thanks to the help of this forum and some videoes of Mrreeceyburger on youtube I succesfully replaced 4 smd diodes with a heatgun on a Panasonic TX-L42B6E tv (according to customer a little more than two years old).
The backlight was made by LG with a total of 50 diodes on strips.

The rectangular diodes I used I bought from Aliexpress.com:
Product: EVERLIGHT LED 3030 lamp beads 1W LCD TV Backlight Lamp beads 3V cool white With Zener Pressure 30cps

http://www.aliexpress.com/item/LED-3...8.0.104.S7FGQf

The diodes had reversed anode/cathode comparing to the original diodes.

The failed diodes was spread out and after replacement I could not see any lightspots or the like on the screen during my tests.

I charged 1400SEK and left only 1 month of guarantee because of the likelihood of more failing diodes.
Cheers

Good work, glad to help

[egils]

Re: Post The Led Backlights Your Fixing Here.

Thanks to the help of this forum and some videoes of Mrreeceyburger on youtube I succesfully replaced 4 smd diodes with a heatgun on a Panasonic TX-L42B6E tv (according to customer a little more than two years old).
The backlight was made by LG with a total of 50 diodes on strips.

The rectangular diodes I used I bought from Aliexpress.com:
Product: EVERLIGHT LED 3030 lamp beads 1W LCD TV Backlight Lamp beads 3V cool white With Zener Pressure 30cps

http://www.aliexpress.com/item/LED-3...8.0.104.S7FGQf

The diodes had reversed anode/cathode comparing to the original diodes.

The failed diodes was spread out and after replacement I could not see any lightspots or the like on the screen during my tests.

I charged 1400SEK and left only 1 month of guarantee because of the likelihood of more failing diodes.
Cheers

[vinceroger69]

Re: Post The Led Backlights Your Fixing Here.

What would be good is a list of new leds that work ok and last, also the part numbers and company they was purchased from. Im sure the information would help us all.

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

Done alot, probably no point to keep posting nearly done 100 of them !

[budm]

Re: Post The Led Backlights Your Fixing Here.

They are only rated at 0.14W! 40mA max, 30mA recommended.
they need to be 300mA or more.

[citywidetvtech]

Re: Post The Led Backlights Your Fixing Here.

sorry, was digikey that had the cool white

http://www.digikey.com/product-searc...s=SM3527UWDC01

[vinceroger69]

Re: Post The Led Backlights Your Fixing Here.

I do at least one backlit LED TV per week, sometimes more. I have 3 alone waiting for me tomorrow when I get to the shop. Have given up on the strips, even shopjimmy strips fail in time so I have started just replacing the individual LED's so I know which ones are good. Charging customers 100 for labor because of how hard they are to get to, and 5 per LED which are cheap enough at Mouser.

have you got links the the mouser leds that you use thanks

[citywidetvtech]

Re: Post The Led Backlights Your Fixing Here.

I do at least one backlit LED TV per week, sometimes more. I have 3 alone waiting for me tomorrow when I get to the shop. Have given up on the strips, even shopjimmy strips fail in time so I have started just replacing the individual LED's so I know which ones are good. Charging customers 100 for labor because of how hard they are to get to, and 5 per LED which are cheap enough at Mouser.

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

Too many for me to count lol, did a 47" Lg this week no bl, 1 open 3 shorted. Apart from that it's the only one this week for me with Leds.

[london-freddie]

Re: Post The Led Backlights Your Fixing Here.

This week, LG 42LB5500 TV powering up, No backlight, image visible using torch, found one failed open led, replaced with one removed from smashed screen set, tv now working.
getting good now at removing and replacing these leds, i use air station
collecting two tvs today samsung and LG both led powering up with cracked screens, £10 each, why am I buying, easy to get the led strips from them

[mmartell]

Re: Post The Led Backlights Your Fixing Here.

UN55ES6100 consisting of a left and right edge strip. Each strip has 76 leds which are really two strips of 38 in parallel. The top half of the left strip has one open led. The bottom also has one open led in addition to 37 shorted leds. How the hell does that happen ? Haven't even checked the right strip...

These strips are damn near impossible to find and replacing that many leds that seem to be standing up on edge is more fun than I'm allowed.

May have to part this one out.

[Jackplug 123]

Re: Post The Led Backlights Your Fixing Here.

Hi Reece,
Finally got the update to load,now running Phoenix Vestel version on the Hitachi.
Thanks
Steve
BTW would you know of any Seiki 32" software updates ?

[ReeceyBurger123]

Re: Post The Led Backlights Your Fixing Here.

Yes
pretty sure what to do..
Format USB drive to FAT32,download zip file and open it to get folder.
folder contains file, upgrade_loader.pkg which is version V.0.8.4 and is 9329kb in size,transfer file only to USB drive,unplug tv from mains,connect USB drive,plug tv into mains,flashing led on tv,when flashing stops, software off USB is loaded,reboot tv and re-install channels.
Remember to set Backlight Led drive to LOW and dynamic contrast to HIGH.
Does that cover it?
BTW Is the Hitachi Logo startup retained?
Cheers
Steve

Yeah thats all good buddy, also the logo is remained but the menu system will be different