Toshiba 13A26 Service Manual - Page 13

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This unit is 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

POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.

NOTE: If you set factory initialization, the total hours is reset to "0".

Set the VOLUME to minimum.

Press both VOL. DOWN button on the set and Channel

button (6) on the remote control for more than 2 seconds.

After the confirmation of using hours, turn off the power.

NOTE: The each item value might be different

according to each set.

If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to

ensure correct data settings while making reference to TABLE 1.

INI

Enter DATA SET mode by setting VOLUME to minimum.

While holding down VOLUME button on front cabinet, press key (6) on remote control for more than 2 seconds.

ADDRESS and DATA should appear as FIG 1.

ADDRESS is now selected and should "blink". Using the VOL. +/- button on the remote, step through the ADDRESS until

required ADDRESS to be changed is reached.

Press ENTER to select DATA. When DATA is selected, it will "blink".

Again, step through the DATA using VOL. +/- button until required DATA value has been selected.

Pressing ENTER will take you back to ADDRESS for further selection if necessary.

Repeat steps 3 to 6 until all data has been checked.

When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.

After the data input, set to the initializing of shipping.

Turn on the POWER.

10.

Set the VOLUME to minimum.

11.

While holding down VOLUME button on front cabinet, press key (1) on remote control for more than 2 seconds.

12.

After the finishing of the initializing of shipping, the unit will turn off automatically.

The unit will now have the correct DATA for the new MEMORY IC.

SERVICE MODE LIST

Releasing of V-CHIP PASSWORD.

Initialization of factory data.

NOTE: Do not use this for normal servicing.

If you set factory initialization, the memories are reset such as the clock

setting, the channel setting, 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".

Display of the Adjustment MENU on the screen.

Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).

CONFIRMATION OF HOURS USED

WHEN REPLACING EEPROM (MEMORY) IC

Operations

ADDRESS DATA

INIT

CRT ON 0010

FIG. 1

Table 1

C-1

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)