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

 
Thread Tools Display Modes
Old 10-27-2020, 12:13 PM   #41
nomoresonys
Badcaps Veteran
 
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 5,979
Default Re: LG 55LW5600 No Video No Sound

List the panel number of the tv and we'll see what we can figure out.
nomoresonys is offline   Reply With Quote
Old 10-28-2020, 03:07 PM   #42
engyshe
New Member
 
Join Date: Jan 2015
City & State: Kitchener
My Country: Canada
I'm a: Knowledge Seeker
Posts: 14
Default Re: LG 55LW5600 No Video No Sound

Tv model is 47LW5700
LA12C is assembly number
main board EAX64344102(1)
engyshe is offline   Reply With Quote
Old 10-29-2020, 02:27 AM   #43
nomoresonys
Badcaps Veteran
 
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 5,979
Default Re: LG 55LW5600 No Video No Sound

Panel number should be on the back metal chassis on a sticker.
nomoresonys is offline   Reply With Quote
Old 10-29-2020, 12:03 PM   #44
engyshe
New Member
 
Join Date: Jan 2015
City & State: Kitchener
My Country: Canada
I'm a: Knowledge Seeker
Posts: 14
Default Re: LG 55LW5600 No Video No Sound

I see. I will look when I get home. None of my pictures cought that detail.
I have been reading service and training manuals, but could not figure out how to determine if backlite diodes are fine if there is no mainboard 3.3V to supply TCON board and other controls. Unless it is this 220ohm to ground test. In that case, should I disconnect cables between main and TCON board (LVDS/power)?
engyshe is offline   Reply With Quote
Old 10-29-2020, 02:21 PM   #45
engyshe
New Member
 
Join Date: Jan 2015
City & State: Kitchener
My Country: Canada
I'm a: Knowledge Seeker
Posts: 14
Default Re: LG 55LW5600 No Video No Sound

Here is the panel number LC470EUF (SD) (F2)
engyshe is offline   Reply With Quote
Old 10-29-2020, 10:42 PM   #46
nomoresonys
Badcaps Veteran
 
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 5,979
Default Re: LG 55LW5600 No Video No Sound

This appears to be a good list of substitute mainboards for your 47 LW5700, might need to put LG in front of them if searching:

EBR73360903
EBR74261202
EBR74261207
EBT61409804
EBT61410005
EBT61804804
EBT61804905
EBT61804907
EBT61804912
EBT61804913

Last edited by nomoresonys; 10-29-2020 at 11:56 PM..
nomoresonys is offline   Reply With Quote
Old 10-29-2020, 11:54 PM   #47
nomoresonys
Badcaps Veteran
 
Join Date: Jan 2013
City & State: midwest
My Country: U.S.
I'm a: Knowledge Seeker
Posts: 5,979
Default Re: LG 55LW5600 No Video No Sound

Your best bet might be one of the repair services, I would try to get one that has a good rep. and offers at least a 6 month guarantee: https://www.ebay.com/sch/i.html?_fro...10008&_sacat=0
nomoresonys is offline   Reply With Quote
Old 10-30-2020, 02:09 PM   #48
engyshe
New Member
 
Join Date: Jan 2015
City & State: Kitchener
My Country: Canada
I'm a: Knowledge Seeker
Posts: 14
Default Re: LG 55LW5600 No Video No Sound

I will contact repair shops and send my board out. I will verify that panel LEDS are fine first and then do that. Thank you for the help and your time. Cheers
engyshe 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 - 2020
Powered by vBulletin ®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 04:27 PM.
Did you find this forum helpful?