Pressure
Controller/Calibrator
Module Guide Rails
33
8. Use a #2 Phillips screwdriver to remove the two M3 x 6 screws
from the
COMM tray
and remove the tray from the chassis.
5
6
hxn207.eps
Figure 15. Remove the Communications Tray
The CPU
To remove the CPU, see Figure 16:
1. Make sure the Product is off and disconnect the mains power cord.
2. Shut off the supply pressure and vent the system.
3. Remove the top panel, see
Top Panel.
4. Remove the COMM tray. See
Communications Tray
.
5. Disconnect the system cable from CPU PCA J31
.
6. Disconnect the switch test cable from CPU PCA J1
.
7. Use a #2 Phillips screwdriver to remove the six M3 x 6 screws
.
8. Use a 7 mm nut driver to remove the two RS-232 connector jack screws
.
9. Use a 9/32 in nut driver to remove the two IEEE connector jack screws
.
10. Separate the CPU
from the COMM tray
.
Note
To avoid damage to the surface-mount components on the bottom
side of the PCA, use care when you separate the PCA from COMM
tray.
Summary of Contents for 6270A
Page 6: ...6270A Service Manual iv...
Page 26: ...6270A Service Manual 20 2 1 3 hxn212 eps Figure 7 PMM and PCM Removal...
Page 30: ...6270A Service Manual 24 1 2 3 hxn205 eps Figure 9 Manifold Installation...
Page 32: ...6270A Service Manual 26 2 1 1 hxn202 eps Figure 10 Remove Feet and Tilt Stands...
Page 40: ...6270A Service Manual 34 hxn208 eps Figure 16 Remove the CPU...
Page 43: ...Pressure Controller Calibrator Module Guide Rails 37 8 9 10 hxn219 eps Figure 18 Dock Assembly...
Page 64: ...6270A Service Manual 58 1 2 3 4 5 7 6 hxn210 eps Figure 32 Remove Latch Assembly...
Page 67: ...Pressure Controller Calibrator PCM Assembly 61 2 1 hxn401 eps Figure 34 Module Components...