How do i unlock child lock on my jvc tv LT26DY8ZY without remote?

SOURCE: Un lock child Lock.

Press and hold the DISP button on your remote for 3 secs.

SOURCE: Un lock child Lock.

HAL DIE EPROME YT SIT AN TV VIR EEN SEC EN SIT EPROM TRIG EN SIT TV AN

SOURCE: How to turn off child lock without remote on LG tv.

hi..To do a Child Lock, follow these steps:

1. Turn on your TV.
2. On the remote, press the Menu button. The Set-Up Menu appears.
3. Scroll to the Key Lock function and set function to Off.
4. Press the Exit button to exit....

SOURCE: child lock is on lg tv and have lost the remote

My child lost the tv remote and we have the child lock on so we can;t change the channel or the volume. Do you know how to turn it off without the remote?

SOURCE: I have the child lock on and the remote control is broken. How can I turn the tv on without the remote control

The power button on the TV doesn't work because of the child lock?
I went over the copy of your manual for your TV. It must be the child lock timer problem.
I would try leaving the TV unplugged for 30 mins and see if that reset the TV and releases the lock.
If it doesn't work, the remote needs to be replaced. A universal remotes aren't really universal when you need to use special buttons. The remote made for the TV is the best.
If your TV is the model 47PFL7403D, here's the cheapest place to buy a replacement.
http://www.philips.newremotecontrol.com/catalog_item.php?catnum=313922852812