Hi mark
To answer your question;
Try to hold the "action" and "power" buttons at the same time for more than 10 secs.
Another one is:If you can get into the menu under "game guard" there might be a lock code , try 333
This works on panasonic tv of the same model, but then quasar is panasonic.
Don`t forget to rate this answer if its helpful
Press the
"Menu" button to set the lock code for your JVC TV. A padlock icon
will appear on the menu display.
Press "Zero"
to access the lock code function then use the left and right arrows to select
the four-digit number for your code. Use the up and down arrows to move to the
next area of the display.
Select the up or down
arrow to finish your lock code then use the left or right arrow to save your
lock code settings and exit the menu. You can return to this display if you
forget your four-digit lock code and set another code.
Write your four-digit
lock code down and keep it in a safe, private area.
Select the locked TV
channel you desire to watch or want to unlock. A message will appear on the
display requesting you to enter your lock code to unlock the channel.
Unlock your JVC TV by entering your lock code on the 10-key pad. The message "Invalid Lock Code!" will appear on the screen if you enter the wrong lock code.
Press the
"Menu" button to set the lock code for your JVC TV. A padlock icon
will appear on the menu display.
Press "Zero"
to access the lock code function then use the left and right arrows to select
the four-digit number for your code. Use the up and down arrows to move to the
next area of the display.
Select the up or down
arrow to finish your lock code then use the left or right arrow to save your
lock code settings and exit the menu. You can return to this display if you
forget your four-digit lock code and set another code.
Write your four-digit
lock code down and keep it in a safe, private area.
Select the locked TV
channel you desire to watch or want to unlock. A message will appear on the
display requesting you to enter your lock code to unlock the channel.
Unlock your JVC TV by
entering your lock code on the 10-key pad. The message "Invalid Lock
Code!" will appear on the screen if you enter the wrong lock code.
Locate
the manual for your television. Though slightly embarrassing, accidentally
turning on the child lock to a TV is a common problem. The section In the
manual about how to set the child lock feature will also explain how to unlock
it.
Try
a few "universal methods" for unlocking the child lock. Some
televisions have a universal code built in for disabling the child lock --no
matter what your code is. A common code is "0000."
Unplug your television for a few minutes. The internal battery of the TV
is what helps remember what your code. If the TV is unplugged for an extended
period of time, it clears the internal memory, which in turn will reset your
child lock code.
•
Look at the screen. If you see a red key on the bottom of the screen,
press "Function" and "Mute" on the remote at the same time.
This will unlock the channel. Do this if you want to bypass the lock to watch a
certain show or channel while leaving the TV locked. All other channels will
remain locked and the TV will lock again when it is turned off.
• Unlock all of the channels on the TV by
entering 0711 or 3308. These are the Jensen factory reset codes that will reset
the TV to the original factory settings. By doing this, you will loose any
information that you have stored in the TV, such as channel labels and
schedules. You will have to program the TV again by going through the entire
initial set up.
•Call the technical support service number
in your owner's manual if neither of those codes work. A technician can help
you troubleshoot the television as the problem may not be the parental lock
feature. Have the model number and serial number of the TV available when you
call.
• Take your television to a TV repair shop if
neither of the codes work and the TV locked by itself while it was turned on.
In this case, the TV may need to be rewired.
Press the
"Menu" button to set the lock code for your JVC TV. A padlock icon
will appear on the menu display.
Press "Zero"
to access the lock code function then use the left and right arrows to select
the four-digit number for your code. Use the up and down arrows to move to the
next area of the display.
Select the up or down
arrow to finish your lock code then use the left or right arrow to save your
lock code settings and exit the menu. You can return to this display if you
forget your four-digit lock code and set another code.
Write your four-digit
lock code down and keep it in a safe, private area.
Select the locked TV
channel you desire to watch or want to unlock. A message will appear on the
display requesting you to enter your lock code to unlock the channel.
Unlock your JVC TV by entering your lock code on the 10-key pad. The message "Invalid Lock Code!" will appear on the screen if you enter the wrong lock code.
Press the
"Menu" button to set the lock code for your JVC TV. A padlock icon
will appear on the menu display.
Press "Zero"
to access the lock code function then use the left and right arrows to select
the four-digit number for your code. Use the up and down arrows to move to the
next area of the display.
Select the up or down
arrow to finish your lock code then use the left or right arrow to save your
lock code settings and exit the menu. You can return to this display if you
forget your four-digit lock code and set another code.
Write your four-digit
lock code down and keep it in a safe, private area.
Select the locked TV
channel you desire to watch or want to unlock. A message will appear on the
display requesting you to enter your lock code to unlock the channel.
Unlock your JVC TV by entering your lock code on the 10-key pad. The message "Invalid Lock Code!" will appear on the screen if you enter the wrong lock code.
Press the "Menu" button to set the lock code for your JVC TV. A padlock icon will appear on the menu display.
Press "Zero" to access the lock code function then use the left and right arrows to select the four-digit number for your code. Use the up and down arrows to move to the next area of the display.
Select the up or down arrow to finish your lock code then use the left or right arrow to save your lock code settings and exit the menu. You can return to this display if you forget your four-digit lock code and set another code.
Write your four-digit lock code down and keep it in a safe, private area.
Select the locked TV channel you desire to watch or want to unlock. A message will appear on the display requesting you to enter your lock code to unlock the channel.
Unlock your JVC TV by entering your lock code on the 10-key pad. The message "Invalid Lock Code!" will appear on the screen if you enter the wrong lock code.
Locate the manual for your television. Though slightly embarrassing, accidentally turning on the child lock to a TV is a common problem. The section In the manual about how to set the child lock feature will also explain how to unlock it.
Try a few "universal methods" for unlocking the child lock. Some televisions have a universal code built in for disabling the child lock --no matter what your code is. A common code is "0000."
Unplug your television for a few minutes. The internal battery of the TV is what helps remember what your code. If the TV is unplugged for an extended period of time, it clears the internal memory, which in turn will reset your child lock code.
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