Panasonic BT-4LH310 Parts List - Page 31

When the EEPROM data can not be save and write, 4-1. Use the original EEPROM

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5-4. When the EEPROM data can not be save and write Please execute the following procedures when the EEPROM data can not be saved and written. 5-4-1. Use the original EEPROM 1. Remove the EEPROM from the original circuit board and put it on a new board. 5-4-2. Perform setting and adjustment again NOTE: When the LCD MAIN P.C.Baord is replaced, the hour meter information is not reflected to the EEPROM on a replaced new board. Also, there is no means of writing the hour meter information into the EEPROM. So please be sure to confirm the hour meter information before the replacement and keep it together with the main unit's serial number. 1. Note down the setting values of the User menu and service menu. 2. Confirm the operation time of "OPERATION" and "LCD" on the Maintenance screen of service menu. 3. Replace the LCD MAIN P.C.Borad. 4. Input the noted setting values of the User menu and Service menu. 5. Execute the GAMMA measurement . (Please refer to item "2. LCD GAMMA measurement".) INF - 14

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INF - 14
5-4. When the EEPROM data can not be save and write
Please execute the following procedures when the EEPROM data can not be saved and written.
5-4-1. Use the original EEPROM
1. Remove the EEPROM from the original circuit board and put it on a new board.
5-4-2. Perform setting and adjustment again
NOTE:
When the LCD MAIN P.C.Baord is replaced, the hour meter information is not reflected to the EEPROM on
a replaced new board. Also, there is no means of writing the hour meter information into the EEPROM. So
please be sure to confirm the hour meter information before the replacement and keep it together with the
main unit’s serial number.
1. Note down the setting values of the User menu and service menu.
2. Confirm the operation time of
"OPERATION"
and
"LCD"
on the Maintenance screen of service menu.
3. Replace the LCD MAIN P.C.Borad.
4. Input the noted setting values of the User menu and Service menu.
5. Execute the GAMMA measurement . (Please refer to item
"2. LCD GAMMA measurement"
.)