Cant watch any channel's

Zenith TV unlock [Child lock]
Tune the television to a channel blocked by a child lock. The words "Enter Lock Code" will appear on the screen with four dashes underneath
Press the numbers on the remote control to enter the child lock pass code to unlock your Zenith television. When the code is entered correctly, the blocked channel becomes visible. The words "Enter Lock Code" remain on the screen if the password is not correct

Enter "0000" if you did not change the password on the television prior to enabling the child lock feature. This number is the default pass code for the child lock.
Push "7777" if you changed the pass code for the television but no longer remember the code. This number allows you to bypass the child lock and watch the programming.
Key lock
Press the "Menu" button on the remote control to access the "Main Menu" screen on the television.
Scroll to "Special" using the up or down arrow buttons and press the right arrow button to access the "Special" sub-menu.
Push the up or down arrow button to highlight "Key Lock" and then press the right arrow button.
Press the up or down arrow button to change "Key Lock" to "No" and then press the "Menu" button to save the setting.
Wish to get more? http://electrohelponline.blogspot.com/

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.

When an Insignia TV is locked, it keeps you from watching all of your channels by only displaying a black screen. Insignia TVs are locked from a single button command on the remote control, so it is easy for you to lock the TV by accident. Since Insignia TVs can be locked so easily, it's important to know how to undo this command and unlock the TV yourself. So, unlock your Insignia TV with the push of a button and once again enjoy watching your favorite programs.
• Find the lock button on the Insignia remote control. The lock button is located on the third column from the left on the second row from the top of the remote.

•Stand within operating range of the Insignia TV, then aim the remote at the TV's receiver and press the "Lock" button on the remote control.

• Aim the remote at the TV and press the channel buttons to make sure the TV is unlocked. When the TV is locked, it shows a black screen and does not allow you to view anything else. If the screen remains black, press the "Lock" button again. If this doesn't work, change the batteries in the remote and start over at step .

Hello
When an Insignia TV is locked, it keeps you from watching all of your channels by only displaying a black screen. Insignia TVs are locked from a single button command on the remote control, so it is easy for you to lock the TV by accident. Since Insignia TVs can be locked so easily, it's important to know how to undo this command and unlock the TV yourself. So, unlock your Insignia TV with the push of a button and once again enjoy watching your favorite programs.
· Find the lock button on the Insignia remote control. The lock button is located on the third column from the left on the second row from the top of the remote.

·Stand within operating range of the Insignia TV, then aim the remote at the TV's receiver and press the "Lock" button on the remote control.
· Aim the remote at the TV and press the channel buttons to make sure the TV is unlocked. When the TV is locked, it shows a black screen and does not allow you to view anything else. If the screen remains black, press the "Lock" button again. If this doesn't work, change the batteries in the remote and start over at step
OK

try to check the settings of your tv if all ok. if ok its a problem in your TV circuit board try to resolder maybe some sections is cold solder. if not its a service mode. trust me!

Can you find the rest button on it and give that a try
gon on the web page for it.

Manual Library you should find all you need here:
http://www.techlore.com/group/2/list_downloads

Hope that helps, good luck

ALSO:
I searched a Magnavox manual for the lock feature here is what I found...
The following functions are disabled during SDM (and enabled after leaving SDM):
· Parental lock
· Blue mute
· Hospitality Mode
· No-ident Timer (normally the set is automatically switched off when no video signal (IDENT) is received for
15 minutes).
All other controls operate normally.
Entering Service Default Mode
To enter the Service Default Mode, press the following key sequence on the remote control transmitter:
0-6-2-5-9-6-MENU
Do not allow the display to time out between entries while keying the sequence.
Upon entry into the Service Default Mode, the letters “SDM” will be displayed at the upper right corner of the screen.

ALSO:
- Line 7 : “CHANNEL BLOCKED”
Indicates that all channels are locked except the selected channel.
The following complaints may be generated due to locked channels:
- TV cannot be switched on from standby with the local keyboard buttons.
- “CH+” and “CH-“ buttons on local keyboard do not function.
To disable the LOCK feature:
Select ”FEATURE” menu (with the Remote Control).
Select “LOCK” (with the Remote Control).
Set to “OFF”

I need a code to unlock my TV its a VS-5004R mitsubishi TV?

I found this online somewhere and it cleared my problem.

(my problem was a blue screen that said my input was locked enter in your code using the 10 key pad. Both inputs were locked, I used the steps below and it cleared it. We are now watching a dvd for the first time in months!) Thank you Bob Waterman whoever you are!)


MITSUBISHI CS3114R

Parental Lock



This system can lock each channel or different channels on ANT A and ANT B
as well as locking each of the EXT inputs, so you should confirm what is
locked before trying to unlock.

1 On the remote, set the TV/VCR switch to the TV position
Or . Depending on which remote is being used
Press the TV mode button at the top.

2. Turn on the TV and using the SCAN buttons (or 10 KEY FAD) and the INPUT
buttons check each channel and input to establish which channels and inputs
are locked. The screen will tell you if the channel or input is locked.

3. Press the button labeled MENU. The screen will show the main TV menu.

4. Press the #5 button (channel lock option).
The screen will change to show the channel lock System Menu. This screen
will indicate that the lock system is either ON or OFF.

IF THE SCREEN INDICATES LOCK IS ON, GO TO STEP 5
OR:
IF THE SCREEN INDICATES THE LOCK IS OFF, GO TO STEP 5A

5. Press the #3 button. (SELECT CHANNELS TO LOCK option). The screen will
ask for the code number. Press the #9 and QV buttons at the same time.

Notes: The screen will change to show an information display that will show
the selected antenna and channel or input. The display is superimposed over
the picture. This display will indicate that the channel or input is either
locked or unlocked. In the lower middle will be instructions to use the
10-key pad or SCAN buttons to select the desired channels (or the INPUT
button to change antennas or select the EXT inputs). At the bottom of the
screen will be instructions on how to change the current LOCK status (if
unlocked use the ENTER button to lock, or if locked use the CANCEL button to
unlock).

NOW GO TO STEP #6.

5a. Press the #1 button (channel lock ON option). The screen will ask for a
code number. Use the 10-KEY PAD to enter a new code number (We suggest 1111)
and then press the ENTER button.

Notes: The screen will change to show an information display that will show
the selected antenna and channel or input. The display is superimposed over
the picture. This display will indicate that the channel or input is either
locked or unlocked. In the lower middle will be instructions to use the
10-key pad or SCAN buttons to select the desired channels (or the INPUT
button to change antennas or select the EXT inputs). At the bottom of the
screen will be instructions on how to change the current LOCK status (if
unlocked use the ENTER button to lock, or if locked use the CANCEL button to
unlock).

NOW GO TO STEP #6.

6. Use the 10 KEY PAD or SCAN buttons to select the channels that are
locked, or, use the INPUT button to select the external inputs that are
locked.

7. At each locked channel or input press the CANCEL button.
The screen will indicate that the channel or input is either locked or
unlocked.

8. When all of the channels and/or inputs are unlocked, press the MENU
button again. TV main menu will be displayed.

9. Press the #5 button (CHANNEL LOCK option).

10. Press the #2 button (channel lock OFF option). The screen will now ask
for a code number again.

11. Press the #9 and QV buttons at the same time. The screen will return
to the CHANNEL LOCK MENU and indicate that the lock is OFF

12. Press the MENU button twice to return to normal viewing.

The parental lock is now entirely cancelled.

---------------------------------------------------------------

Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com

Without the code, you must get an original remote and press the "QV" and the "9" buttons together to unlock the TV.