Toshiba 19LV61K Service Manual page 58

WHEN REPLACING EEPROM (MEMORY) IC
CONFIRMATION OF CHECK SUM, POWER ON TOTAL HOURS AND MICON VERSION
Initial total of MEMORY IC, POWER ON total hours and MICON VERSIONcan 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".
Please refer to "CONFIRMATION OF INITIAL DATA" when SUM DATA is not corresponding.
1. Turn on the POWER, and set to the ALL mode. 1. Turn on the POWER, and set to the ALL mode.
2. Set the VOLUME to minimum.
3. Press both VOL. DOWN button on the set and Channel button (8) on the remote control for more than 2 seconds.
4. After the confirmation of each check sum, turn off the power.
NOTE: The each item value might be different according to each set.
Main Micon check Version.
EEPROM check Version.
Parameter check Picture Quality.
Parameter check Picture Size.
CONFIRMATION OF INITIAL DATA
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 INITIAL SETTING TABLE (Attached "INITIAL DATA").
1. Turn on the POWER, and set to the ALL 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.
ADDRESS and DATA should appear as FIG 2. ADDRESS and DATA should appear as FIG 2.
NOTE: No need to set data other position than 0D00~0EFF.
4. ADDRESS is now selected and should "blink". Using the UP/DOWN buton on the remote, step through the ADDRESS
until required ADDRESS to be changed is reached.
5. Press LEFT/RIGHT button to select DATA. When DATA is selected, it will "blink".
6. Again, step through the DATA using UP/DOWN button until required DATA value has been selected.
7. Pressing LEFT/RIGHT button will take you back to ADDRESS for further selection if necessary. 7. Pressing LEFT/RIGHT button will take you back to ADDRESS for further selection if necessary.
8. Repeat steps 4 to 6 until all data has been checked.
9. 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.
10. Turn on the Power.
11. Set the VOLUME to minimum.
12. Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 2 seconds.
13. 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.
CHECK SUM : 5230
LCD PWR ON : @@@@
DTV : CA09I91141
EEPROM : K52G03AM00
QUALITY :
@@@@.@@ (@@@@@@
SCALING :
@@@@.@@ (@@@@@@
FIG. 1
ADDRESS DATA
INIT : 0001 0099
DTV : CA09I91141
EEPROM : K52G03AM00 EEPROM : K52G03AM00
FIG. 2
C-4 C-4
Initial setting data check sum.
POWER ON total hours.
= (16 x 16 x 16 x thousands digit value) = (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)
@@:@@:@@)
@@:@@:@@)
26LV61K 26LV61K