NEC PF-68T31 Service Manual page 13

V901
B C
0.5 44.1
V906
B C
5.5 0
*********************** Special Function ************************************
Special Setup for limited purpose.
This TV has special setup for TV locking function. From normal operation select "CHILD
LOCK" and...
Receiving [LOCK] key command, CHILD-LOCK menu
will be appeared.
On this situation, received [LOCK] key again, over
3 seconds,
i) All front panel keys will be disabled.
ii) Only by remote control, TV can be operated.
By receiving over 3 seconds [LOCK] key command, lock situation will be changed as ON or
OFF.
If {PANEL LOCK} system, describe later, set to ON, even with above command can not turn
to OFF.
In this mode, if receiving numeric command "9999", CHILD LOCK mode will be changed to
"LOCK FUNCTION" mode. "9999" will not be displayed on screen.
In this mode, cursor can be moved up/down
by [CH+]/[CH-] keys.
Setting status can be changed by
[VOL+]/[VOL-] keys.
After setting to "ON", the program can not be
accessed by [CH+]/[CH-] keys.
By [LOCK] key command, mode can be exit.
CH PRESET LOCK
If this item were set to "ON";
i) Automatic Search and Memory function were disabled.
ii) Manual Search function were disabled.
iii) Fine Tuning function were disabled.
E B
0 -0.1
E B
5.6 0.7
.
V902
C E
128.6 0
V908
C E
1.4 0
LOCK FUNCTION
CH PRESET LOCK
VOLUME LIMIT
AV LOCK
PANNEL LOCK
13
V905
S D G
0 16.0 4.0
CHILD LOCK
ON
OFF
33
OFF
ON