Mitsubishi FREQROL-SFJ, Руководство по обслуживанию

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2.
3.
4.
To install a new card, perfo rm the
Disengage connectors 1
0
Disengage all card locks
float the card.
Disengage connectors 4
0
in this order.
verse
steps.
5 Replacement of ROM
and
to let
and
ROMs should be handled in pair; ROM1 and ROM2
Replace a pair of ROMs.
Procedure:
Remove the FR-SFJ front panel (remove 4 panel mounting
screws).
(2) ROMs.
To the ROMs, be sure to use a ROM remover and
disengage each ROM from socket.
not to bend ROM pins.
new ROMs.
To load, identify each ROM (see ROM No.) and check
on.
it is loaded, visually check for condition.
Example of ROM loading failure
of loading failure
ROM tilts and its pins are not put into the socket
securely.
b o a r d
60