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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
LG 39LB5600-UZ Need help accessing Service Menu



New User

Oct 11, 2020, 4:23 PM

Post #1 of 2 (304 views)
LG 39LB5600-UZ Need help accessing Service Menu Can't Post

My 39 inch 2014 39 inch LG had both HDMI ports giving 'No Signal' message after a lightning storm. The Component/composite input worked fine.
I replaced the system board and the HDMI ports are now working, However the picture is rotated 180 degrees (upside down) . Everything I have searched says to enter 'Service Mode' and select the Mirror option and change it to Off. This TV does not have a set of switches on the TV, only a small Joy Stick at the base. None of the internet "secrete" ways to access the Service menu work.
A couple internet hits say I need a MKJ39170828 universal service remote.
Any help or direction would be greatly appreciated.
Bob D

New User

Oct 13, 2020, 10:33 PM

Post #2 of 2 (270 views)
Re: [bobdec] LG 39LB5600-UZ Need help accessing Service Menu [In reply to] Can't Post

Update.. Ordered the Universal Service Remote in previous post, cost $8.00 on Amazon, delivered in one day. Browsed a couple of foreign YouTube videos and figured out how to use it to reset the Mirroring setting. Actually mirroring was set to OFF and I had to set it to ON . All is good TV back to working condition total of $46.00 for the main board and the remote including shipping and tax. Plus I learned a bit also..
Bob D


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