430 Power/Electronics Replacement
Replacing ROMs on the main board (6890A and 6890 Plus)
12 of 26
Jun 2001
Mainframe
Agilent 6890 Gas Chromatograph Service Manual
Inserting a ROM
Caution Before inserting a ROM (new or used), make sure that all of the prongs are
straight. Straighten any bent prongs with a small flat-blade screwdriver or a
small pair of needle nosed pliers before continuing.
ROMs are supplied in sets of two:
• The lower part number goes in socket 0.
• The higher part number ROM goes in socket 1.
If the positions are reversed, the system will not boot up.
To insert a ROM, align the flattened corner of the chip with the upper right
corner of the socket (a small dot and the word AMP mark it). Check to make
sure all the prongs are aligned with their appropriate slots, then push the
chip into the socket until it is firmly seated and level.
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