Sony KD-43X7 G Series Service Manual page 127

4.9 Serial Number Edit
5) If NO is selected, the input data is not saved into
EEPROM. The model name that has been
input is displayed. User still can edit the Model
Name.
* The font color of NO is change to black when it is
selected
* Model Number clear:
Model Number can be set 5 times
times, Model Number cannot be clear & will
keep the last Serial Number.
Step:
i) Enter Self diagnosis history >Self Check
ii) Press <6> <0>
* Warning please don't reset the serial number unnecessarily.
Always check the input data is correct before rewrite. When data is
clear, it affect both Model number & serial number.
only. After limit 5
127
SYS SET