Part I: Control Unit Maintenance 5
Part I: 5-3
Teledyne Analytical Instruments
Preamp
0OK
1 Zero too high
2 Amplifier output doesn't match test input
3 Both Failed
5.3 Major Internal Components
The major components in the Control Unit are shown in Figure 5-3.
Figure 5-3: Control Unit Major Internal Components
Outer Door
Inner Door
Main PCB
PreampPCB
Display PCB
Doors shown rem oved
for clarity
Electrical Connector Pane
Box Subassembl
(Gas Connector
Panel not shown.