Cannot lock in Custom picture setting

If you have forgotten the code lock for your Sonic TV and cannot retune it, you may be able to reset it back to factory settings by performing a factory reset. However, please note that this will erase all custom settings and data, and revert the TV to its original state.
To perform a factory reset on your Sonic TV, follow these steps:

1. Turn off the TV using the power button.
2. Unplug the TV from the power outlet.
3. Press and hold the power button on the TV for 15-20 seconds.
4. While still holding the power button, plug the TV back into the power outlet.
5. Continue holding the power button for another 15-20 seconds, then release the button.
6. The TV should now reset to factory settings.

Please note that the steps may vary depending on the specific model of your Sonic TV. If you are unsure or if this method does not work, you may want to consult the instruction manual for your TV or contact the manufacturer for further assistance.

reset the tv by pressing the reset button.

Check your setting in "Custom Functions". Sounds like your "-" (or more specifically your "*" button) has had a feature enabled. I had my "*" button set for focusing - under Focus Settings in Customs Functions. If in doubt reset all Custom Functions to their default.

To reset the parental lock password or disable the parental lock, follow these easy steps

Step 1

Turn on your PS2 and choose the menu screen where you would normally enter the password. Instead of entering a password, go to the DVD setup menu. Go to "custom setup" and choose "parental controls".

Step 2

When you are asked for the code or password, press the select button on your controller and enter the number "7444". Now set the parental lock to "off".

Step 3

Press "reset" on the front of the game console to save your settings. When the system reboots, you should be able to view your previously censored games or DVDs. You will also have the opportunity to choose your own password, allowing you to turn the parental lock on and off, either manually or automatically by game or movie ratings.

this happens when the electricity is fully discharged

I'm not sure if you are talking about the quick view of a picture just taken, or using playback mode to view shots taken. Either way, I suggest changing batteries so they are fresh.
There are 3 different LCD choices when in "Shooting Mode."
Press "DISP."
The display mode will change each time you press this button.
1- Standard (no info displayed, just pic)
2- Detailed (infor displayed)
3- Off
If you have tried this, then you may want to perform a reset to the cam. This will reset any screen/LCD settings that may have been changed.
Goto the Setup Menu and select "Reset All." Select "OK" and press "Func. Set."
This reset WILL NOT reset the following:
-Current Shooting Mode
-Date/Time, Language, & Video System settings
-White Balance Data (of you have custom settings changed in the custom white calance function)

This function will block out the picture and sound of the selected channel or video input.
It can also be used to keep the TV from being viewed for a scheduled time period that you set.
The code to enter the Locks feature is a four digit secret code number. The factory preset code is 0000.
Use the number buttons to select access code.

Use CURSOR G or H to highlight function and then press the SELECT button.
To change the access code number, select Change Access Code. Enter a new four digit key number you prefer.
Select CHANGE ACCESS CODE to change factory preset code (0000) to your preference.
When ENGAGE LOCK is selected, SET CHANNEL LOCK, SET INPUT LOCK, and SET FRONT PANEL LOCK can be set individually.
When SET CHANNEL LOCK is turned on, the picture and sound for the chosen channel will be blocked out.
When SET INPUT LOCK is turned on, the picture and sound for all video inputs and the picture and sound for channels 3, 4 will be
blocked out.
When FRONT PANEL LOCK is turned on, all buttons on the Front Panel will be deactivated, except the Power button.
When TV TIME LOCK is turned on (r TIME LOCK) you can set the BEGIN and END times (CURSOR E) and the TV
cannot be viewed during that time period (Set clock first). Use CURSOR G or H to highlight ONCE (TV will time out one time
only), DAILY (TV will time out every day), WEEKLY - SUN~WEEKLY - MON (TV will time out one time a week) or OFF (to disable
this function).
When MOVIE RATINGS is selected, you can block various types of movies and video tapes based on motion picture ratings. Picturein-
Picture will also be blocked automatically (see page 45).
When TV RATINGS is selected, various types of television programming based on a parental guide ratings will be blocked.
Picture-in-Picture will also be blocked automatically
If you forget your secret code, use the factory code 7777 to erase your key number. This will reset the secret code number back to the
factory preset 0000.
Press EXIT to quit the menu.

i have the e-500 and can only register one at a time. once you set the white balance using the one touch button, it stays that way until you one touch again or custom reset. however it may be possible to save to 'my mode' 1 or 2 ... or even 'custom reset' 1 or 2. according to the manual on page 119, it saves your wb setting and most of the other changes you have made.

reset camera... soft reset. Mode Dial to P, press Menu, right arrow (AF button), to card setup, down to custom reset, right to custom reset, OK, up to YES, the OK

The exposure compensation stays where you leave it unless you do a full reset or a custom reset, and except when you're using scene modes. But you don't need to do a reset to cancel out an exposure compensation -- simply use the exposure compensation button to adjust the compensation back to 0.0EV.

First, put the mode dial to "P". Now you can use the menu to do a "CUSTOM RESET" (see p.118 of the printed manual).