Service Mode List; Confirmation Of Hours Used - Toshiba 21S23N Service Manual

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This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter the Service Mode, press both set key and remote control key for more than 2 seconds.
Set Key Remocon Key
VOL. (-) MIN 0
VOL. (-) MIN 1
VOL. (-) MIN 6
VOL. (-) MIN 8
VOL. (-) MIN 9
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. Set the VOLUME to minimum.
2. Press both VOL. DOWN button on the set and Channel
button (6) on the remote control for more than 2 seconds.
3. After the confirmation of using hours, turn off the power.

SERVICE MODE LIST

Reset the user setting items (PICTURE, VOLUME, LANGUAGE and NICAM AUTO/
OFF) to the initial state for delivery.
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
If you set a factory initialization, the memories are reset such as the channel
setting, and the POWER ON total hours.
POWER ON total hours is 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".
Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).

CONFIRMATION OF HOURS USED

C-1
Operations
ADDRESS DATA
Initial setting content of MEMORY IC.
INIT 01 00
POWER ON total hours.
CRT ON 0010
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
FIG. 1
+ (ones digit value)