Kenwood KVT-910DVD Service Manual page 39

MICROCOMPUTER'S TERMINAL DESCRIPTION
MASK Key Specification (E, W type)
q How to register MASK Key Code on the
line (Initial condition → Factory
specification)
1. Put the set in test mode by conducting the
following
G While short-circuiting CN30 on the side of B-
Box, press Reset button.
G While pressing VOL Down Key and Seek Up,
press Reset button.
2. Press V. SEL Key for a while longer and switch
to graphic screen.
3. Touch on Set UP Key, and display Set Up
Screen.
4. Touch on Security Key and display Mask Key
Code registration screen.
5. When the "1st" screen is displayed, press Mask
keyfor 0.5 seconds or longer.
6. When the "2nd" screen is displayed, press Mask
Key again for 0.5 seconds or longer.
7. When MASK Key registration screen is released
and Set upscreen is displayed, registration is
completed.
w How to give permission for MASK Key
Code (Factory specification → Permission
condition)
1. Touch on Set UP Key from the graphic screen,
and display Set Up Screen
2. Touch on Security Key and display MASK Key
Code permission screen.
3. When "1st" screen is displayed, press MASK
Key for more than two seconds. (Until bar
display is completed.)
4. When "2nd" screen is displayed, press MASK
Key again for more than two seconds. (Until bar
display is completed.)
5. After "OK"is displayed, MASK Key permission
screen is released. When Set Up screen is
displayed, permission condition has been
achieved.
At this point, Srcurity Key in the Set UP
screen cannot be selected. (Gray screen)
e
How to input Mask Key at Security On
(Permission condition → Release
condition)
1. In Mask Key permission condition, turn power on
after Reset or turning backup OFF.
Mask Key input screen is displayed.
2. When "1st" screen is displayed, press Mask Key
for more than two seconds. (Until bar display is
completed.)
3. When "2nd" screen is displayed, press Mask
Key again for more than two seconds. (Until bar
display is completed.)
4. After "OK" is displayed, Mask Key input screen
is released. When Menu screen is displayed,
Security is released.
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At this point, Security Key in the Set UP
screen cannot be selected. (Gray screen)
r How to initialize Mask Key (Permission
condition → Factory condition)
1. In Mask Key permission condition, turn power on
after Resetor turning backup OFF.
Mask Key input screen is displayed.
2. When "1st" screen is displayed, press Mask Key
for more than two seconds.
(Until bar display is completed.)
3. When Mask Key input screen is released and
Menu screen is displayed, Factory Condition is
achieved.
At this point, Security Key in the Set UP
screen can be selected.
t How to clear all Mask Key (Factory
condition → Initial condition)
1. Put the set in the Test Mode by conducting the
following.
G While short-circuiting CN30 on the side of B-
Box, press Reset button.
G While pressing both VOL Down Key and Seek
Up, press Reset.
2. Press V.SEL Key for a while longer and switch
to graphic screen.
3. Touch on Set Up Key, and display Set Up
Screen.
4. Touch on Security Key and display Mask Key
Code registration screen.
5. When the "1st" screen is displayed, press Mask
Key for 0.5 seconds or longer.
6. When Mask Key registration screen is released
and Set up screen is displyaed, initial condition
is achieved.
Code Security Specification
(K,R,H,X,C,M type)
How to clear Security Code
1. When in Security On condition, after resetting or
turning backup off, turn the power on.
Then, Security Code input screen is displayed.
2 Using Audio remote control (custom code B946),
input the code in the following procedure.
Procedure 1: "K"input (Press Ten Key ttwice.)
Procedure 2: Input "C" (Press Ten Key wthree
times.)
Procedure 3: Input "A" (Press Ten Key wonce)
Procedure 4: Input "R" (Press Ten Key utwice)
When making a mistake in the above
procedure, Press any other remote control key,
and then start from the Procedure 1 again.
3 When Security Code input screen is released
and Menu screen is displayed, the Security Code
is cleared.
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