Removing The 500 Circuit Board, The Microprocessor - Kodak X-Omat 270 RA PROCESSOR Service Manual

Removing the 500 CIRCUIT BOARD, the Microprocessor

ESD
Possible damage from electrostatic discharge.
SCREW (8)
Keyed corner
of PROM
Keyed corner
of SOCKET
SM3058-3 – May 1996
500 CIRCUIT
BOARD
[1] De-energize the PROCESSOR.
[2] Using EXTRACTION TOOL TL-4430, remove
and transfer the 4 PROMS/EEPROMS U17, U18,
U19, and U20 from the existing 500 CIRCUIT
BOARD:
(a) Move the 4 PROMS/EEPROMS U17, U18,
(b) Place each EEPROM carefully on the
(c) Check that the keyed corners are aligned.
(d) Press the EEPROM firmly into the
[3] Check that the EEPROMS are installed in the
H104_0312ACA correct SOCKETS.
[4] Remove the BATTERY from the existing 500
CIRCUIT BOARD and install the BATTERY on
the new 500 CIRCUIT BOARD.
BATTERY
CONNECTOR (9)
ELECTRICAL
BOX
COVER
U19, and U20 to the new 500 CIRCUIT
BOARD.
SOCKET.
SOCKET.
Electrical
EEPROM
H104_0500HCA
H104_0500HA
19