Service Mode List; Confirmation Of Hours Used - Akai CFTD2052 Service Manual

This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote
control for more than the standard time in the appropriate condition. (See below chart.)
Set
Set Key
Condition
VOL. DOWN
TV mode
(Minimum)
VOL. DOWN
TV mode
(Minimum)
DVD mode VOL. DOWN
(No disc)
(Minimum)
VOL. DOWN
TV mode
(Minimum)
VOL. DOWN
ALL mode
(Minimum)
DVD mode
STOP
(No disc)
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to "0".
1. Turn on the POWER, and set to the TV mode.
2. Set the VOLUME to minimum.
3. Press both VOL. DOWN button on the set and Channel
button (6) on the remote control for more than 1 second.
4. After the confirmation of using hours, turn off the power.

SERVICE MODE LIST

Remocon Standard
Key Time
0 1 sec.
1 1 sec.
4 1 sec.
6 1 sec.
9 1 sec.
7 3 sec.

CONFIRMATION OF HOURS USED

Releasing of V-CHIP PASSWORD.
Initialization of factory data on TV.
NOTE: If you set factory initialization, the memories are reset
such as the channel setting, and the POWER ON total
hours.
Initialization of factory on DVD data.
NOTE: The function will only work without the setting of DVD disc
at DVD mode.
POWER ON total hours are displayed on the screen.
Refer to the "CONFIRMATION OF HOURS USED"
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display
Adjustment).
Releasing of PARENTAL LOCK.
Refer to the ÒPARENTAL CONTROL - RATING LEVELÓ.
NOTE: The function will only work without the setting of DVD disc
at DVD mode.
INIT 00 25
LCD ON 0010
FIG. 1
C-1
Operations
Initial setting content of MEMORY IC.
POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)