SmartSeis
TM
Maintenance Manual
13
Figure 3. Cables and connections on an OMNI board and relative position of the IDE hard
drive and top acquisition board.
Table 2. OMNI board connector numbers and corresponding cable connections.
OMNI board
connector no.
Cable connection
J1
External monitor
J2
Front LCD panel
J3
Serial port
J4
Parallel port
J5
Floppy drive
J6
IDE hard drive
J7
Power distribution board
J8
Speaker port on motherboard
J9
Not used
J10
Trigger
To remove an OMNI board:
1. Confirm that the power is off and the cable disconnected from the seismograph.
2. Remove the four Philips screws and the retaining bracket holding the OMNI board in
place.
Front LCD panel cable (J2)
Parallel port cable (J4)
Serial port cable (J3)
IDE hard drive cable (J6)
Floppy drive cable (J5)
IDE hard
drive and
mounting
nuts
Power cable (J7)
External monitor cable (J1)
Speaker port cable (J8)
Acquisition
board
