Technical data

Installation 1
Agilent Multimode for 6210/6220 TOF Installation and Maintenance Guide 11
Step 3. Change the firmware chips on the Analyzer and
Power Distribution Boards
The Main PLCC Firmware chip U129 must be changed on the Analyzer 3 PCA
for source identification (p/n G1978-80067). Two chips on the power
distribution board U6 (p/n G1978-80100) Programmed ROM MM LON and U18
Chip EPROM (p/n G1978-80200) will also be changed.
1 Locate the Firmware Upgrade Kit, MM (part number G1978-60156) in the
upgrade kit parts box.
2 Locate the Analyzer board that was removed in “Step 2. Remove the TOF
E-Tub Electronics” on page 10. Place the Analyzer Board on a static free
surface.
3 On the Analyzer Board, locate the U129 socket. See Figure 1.
Figure 1 Location of the U129 socket
4 Look at the chip in the socket. Note the orientation of the chip in the socket.
Using the chip removal tool, carefully remove the logic chip from the U129
socket. Be very careful when using the tool because you can damage the
chip socket.
NOTE
Note
You only need to insert the very tip of the tool under the chip. Using more of the tool under
the chip to pry or remove the chip will lead to damage of the socket. See Figure 2.