Service Mode List; Confirmation Of Hours Used - Toshiba MD20FM3 Service Manual

This unit 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 a standard time (second).
Remocon Key
Set Key
0
VOL. (-) MIN
VOL. (-) MIN 1
VOL. (-) MIN 3
VOL. (-) MIN 6
VOL. (-) MIN 8
VOL. (-) MIN 9
STOP 7
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 1 second.
3. After the confirmation of using hours, turn off the power.
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SERVICE MODE LIST

Standard Time
(seconds)
1 Releasing of V-CHIP PASSWORD.
Initialization of the factory on TV.
NOTE: Do not use this for the normal servicing.
1
If you set a factory initialization, the memories are reset such as
the channel setting, and the POWER ON total hours.
Initialization of the factory on DVD.
NOTE: Do not use this for the normal servicing.
The function will only work without the setting of DVD disc at
1
DVD mode.
While pressing the Remocon Key for more than the Standard
Time, press the Set Key simultaneously.
POWER ON total hours and PLAY/REC total hours are displayed on
the screen.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS"
1

(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.
1
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
1 Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display
Adjustment).
Releasing of PARENTAL LOCK.
Refer to the "PARENTAL CONTROL - RATING LEVEL".
3
NOTE: The function will only work without the setting of DVD disc at
DVD mode.
CONFIRMATION OF HOURS USED
C-1
Operations
ADDRESS DATA
Initial setting content of MEMORY IC.
INIT 00 F9
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)