Agilent Technologies 6890 Series Service Manual page 439

430 Power/Electronics Replacement
Installing an MIO card (6890A and 6890 Plus)
Beeper
P11 P1
P2
GND
P12
GND
Oven Access
Cutout
P13
P17
3V
Lithium
battery
4 ROM
Sockets
Figure 430-6
4. Screw the hexagonal metal standoff provided with the MIO kit into the
hole vacated by the T-10 screw. Use a 3/16-inch nut driver to tighten the
standoff 1⁄ 8 turn past finger-tight.
5. Route the oven sensor wires (P16) and the main power wire harness (J7)
underneath the standoff.
6. Plug the jumper board from the MIO kit into the P15 socket on the main
board. Make sure the P7 connector on the jumper card points toward the
back of the instrument.
7. From the back of the instrument, insert the metal bracket into the MIO
card slot.
8 of 26
P21
P16
P22
DSP
Gate
F2 F1
Array
CPU
+15V
–15V
+5v
Gate
Capacitor
Array
Location for MIO bracket standoff
Mainframe
Agilent 6890 Gas Chromatograph Service Manual
P3
P15
J8
P18
F4 F3
Hole for
transformer
cable
–24V
Capacitors
+24V
J1
J2
JP1
JP2
J4
J6
J5
Jun 2001