Toshiba 20A43 Service Manual - Page 41
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IC199 memory data
INITIAL
0A
How to Change memory data
1.
Enter DATA SET mode by setting 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.
ADDRESS and DATA should appear as FIG 1.
3.
ADDRESS is now selected and should "blink". Using the SET +/- button on the remote, step through the
ADDRESS until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using SET +/- button until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
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.
9.
Turn POWER on.
10.
Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 1 second.
11.
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.
WHEN REPLACING EEPROM (MEMORY) IC
From
T o
Change of MICON IC.
AA
00
ADDRESS DATA
INIT
00
00
CRT ON 0010
FIG. 1
Cause