Hitachi 31CX4B - Manual (Page 54)

PROGRAM
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Press CURSOR , to review more channels.
Press MENU to EXIT.
2
CHILD LOCK
This function will block out the picture and sound of the selected channel.
The code to set or cancel CHILD LOCK is a three digit key number. The factor preset key
number is 000.
The picture and sound will now be blocked out for this channel. Repeat the same steps to cancel
the CHILD LOCK.
To change the key number, select key number change. Enter the old number (factory preset 000
for first time use), then enter a new three digit key number you prefer.
If you forget your key number, use the factory code 777 to erase your key number. This will
reset the key number back to the factory preset 000.
VOLUME CORRECTION
Use this function to reduce the volume level of up to four TV channels that sound loud compared
to other TV channels.
Press the CURSOR , to select one of the four volume corrections.