Service Mode List - Toshiba 20HL85 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 the standard time (second).
Set
Set Key
Condition
VOL. DOWN
TV mode
(Minimum)
VOL. DOWN
TV mode
(Minimum)
VOL. DOWN
TV mode
(Minimum)
VOL. DOWN
ALL mode
(Minimum)
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 2 seconds.
4. After the confirmation of using hours, turn off the power.

SERVICE MODE LIST

Remocon Standard
Key Time
0 2 sec.
1 2 sec.
6 2 sec.
9 2 sec.
CONFIRMATION OF HOURS USED
MICON Version
Releasing of V-CHIP PASSWORD.
Initialization of factory date.
NOTE: If you set factory initialization, the memories are reset such as
the channel setting, and the POWER ON total hours.
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).
ADDRESS DATA
INIT 000 3F
LCD ON 0000
OEC7133A_060
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)