GE LOGIQ P9 Service Manual page 436

GERAFT
D 5604324, R
IRECTION EVISION
8-17-11 Handling EEPROM on MCB Board
EEPROM on MCB board contains vital information.
A) System Serial Number that is matched against stored software option key.
B) ComExpress Functional REV that is monitored for sub-system compatibility.
Therefore, when MCB board is replaced, EEPROM must be moved from one board to the other to make
sure vital information pertaining to the system is transferred to the new MCB board.
EEPROM must be moved.
1) Locate EEPROM on MCB Board.
2) Gently lift up EEPROM from its socket by using a chip-puller or a small straight blade screwdriver.
NOTE: Be sure not to bend "legs" of EEPROM. They are fragile.
8-110
11 DRAFT (J
MCB Board being replaced
Figure 8-122 EEPROM
Figure 8-123 Location of EEPROM (example)
Section 8-17 - Replacement around Nest Box
24, 2019)
ANUARY
New MCB Board
LOGIQ P9/P7
S M
ERVICE ANUAL