Agilent Technologies 6890 Series

1 of 6
Jun 2001
Electrical
Agilent 6890 Gas Chromatograph Service Manual
1225 Main Board, 6890N
General board layout
The test points on the G1530-60200 main board are shown in Figure 1225-1.
Some additional parts are included to assist in locating the test points.
Figure 1225-1 Main board test points and battery, 6890N
-24V
-15V
GND
+24V
+15V
+5V
-10V REF
GND
P2
F4 F5
+10 V test point
Ground
+24V ±10%
+15V ±5%
+5V ±2%
–24V ±10%
–15V ±5%
GND
Main test point group
Battery