My sony that i bought used has a parental block. dont know the code. no remote!!

These are the steps to unlock Apex TVsApex TVs have parental locks that allow you to block certain programs based on
their rating. When this feature is no longer needed and you want your TV to display all programming no matter its rating, you must unlock your TV. Unlocking your Apex TV is done completely from your remote control and does not require any tools. The process takes less than 5 minutes.
• Press the "Menu" button on the remote control and use the arrow buttons to scroll down to the "Parental Guide" option, then press the "Enter" button.
Type in the default parental code "6688" if you have not set your own code. If you have set your own code, type it in. If you set your own code and forgot it, override it by using "6688."
Use the arrow keys to switch the parental lock to "OFF." This allows all programs to be viewed no matter the rating. Press the "Exit" button on the remote and start watching all your channels.

Apex TVs have parental locks that allow you to block certain programs based on
their rating. When this feature is no longer needed and you want your TV to display all programming no matter its rating, you must unlock your TV. Unlocking your Apex TV is done completely from your remote control and does not require any tools. The process takes less than 5 minutes.
• Press the "Menu" button on the remote control and use the arrow buttons to scroll down to the "Parental Guide" option, then press the "Enter" button.
Type in the default parental code "6688" if you have not set your own code. If you have set your own code, type it in. If you set your own code and forgot it, override it by using "6688."
Use the arrow keys to switch the parental lock to "OFF." This allows all programs to be viewed no matter the rating. Press the "Exit" button on the remote and start watching all your channels.

Try factory reset in the main menu. Or try code 000. You can do factory reset in the main menu by using channel up/down and volume up/down buttons on the panel.

Try code 0000 or 1234 to reset it.

Otherwise try leaving the set unplugged overnight to see if the internal memory will reset.

Good luck and comment back if this was helpful.

try this.
do the following in this order:
press 'select' button-->enter 7444-->enter new code--> re-enter new code-->optional: scroll down to select parental level.
hope this helps :D
please rate solution

This is what I found in the instruction manual on this and I posted it here for you. Try using 3355 for the code and everything else listed here. If that doesn't work, try the very last tip which tells you how to do a factory reset and repeat the first step using the 3355 as the code.

Here's the instructions from manual:

Parental Control
Parental Control allows you to block certain channels or programs so children cannot view
programs that are not age appropriate.
To enter the Parental Control menu, you need an
access code. The first time you enter, use access
code 3355. See "Setting an Access Code" on
page 33 for information on creating a new access
code.
You can set the following options to block
content:
• Channel Lock — Blocks selected channels
• Movie Rating — Blocks movies based on their rating (G, PG, PG-13, R, NC-17, and X)
• TV Ratings — Blocks TV shows based on their rating
• Block Options — Turns on or off all your parental control settings
NOTE: You can use Clear All to unblock the channels and programs that you have set.
NOTE: If the Block Control in the Parental Control menu is enabled, all the sub screens in POP (POP1,
POP3 and POP12) mode will be blank



Setting an Access Code m
After you enter the Parental Control menu for the first time, you can set your own four-digit access
code. If for any reason you lose or forget your access code, you can use the default code.
1 In the Parental Control menu, select Change Code.
2 Using the number pad on the remote control, enter a new access code.
3 Select Exit.




Reset the original factory defaults. Press Menu on the remote
control, select Setup, and then select Factory Reset

All u have to do is.................................Turn off ur ps2 and then enter the dvd press yes when it asks u if u want to upgrade parental are what ever and then press select and enter 7444 then for a easy pass werd enter 0000 and.............................walla u got it fixed

Click Sony Support, type model number of your TV there, hit Enter and download required user manual.

Ok first try 0 1 2 3 because that is the preset code for the ps2 or if that dont work insert any dvd movie, go to setup and access the parental control settings(press select) When asked for your code enter "7444"; It will prompt you again to type in your password. Type "0000" and then scroll down to the movie rating options and choose "off". Hope it helps you out!

You can try these codes 2211 or 3308 if they do not work you will need to reset the unit. You will need to unplug it for 45 minutes that will reset the TV to factory settings. Then the pass codes I provided should work.