Tables - Mallinckrodt Nellcor N-20PA Service Manual

CONTENTS
Figure 9-18: CPU Memory Circuit ......................................................................................................................... 9-17
Figure 9-19: Input Port Circuit................................................................................................................................. 9-18
Figure 9-21: Real-Time Clock Circuit ..................................................................................................................... 9-19
Figure 9-22: Audio Output Circuit........................................................................................................................... 9-20
Figure 9-24: User Controls Circuit........................................................................................................................... 9-23
Figure 9-27: Analog Reference Voltage Circuit....................................................................................................... 9-26
Figure 9-28: Ambient Light Circuit.......................................................................................................................... 9-27
Figure 9-29: Ambient Temperature Circuit.............................................................................................................. 9-27
Figure 9-30: Battery Voltage Circuit........................................................................................................................ 9-28
Figure 9-31: Battery Type Circuit ........................................................................................................................... 9-28
Figure 9-8: LED Drive Circuit ................................................................................................................................ 9-31
Figure 9-10: N-20PA HSO Timing Diagram .......................................................................................................... 9-31
Figure 9-13: AC Variable Gain Control Circuit...................................................................................................... 9-31
Figure 9-15: CPU Circuit ........................................................................................................................................ 9-31
Figure 9-20: Output Port Circuit ............................................................................................................................. 9-31
Figure 9-23: Display Control Circuit ...................................................................................................................... 9-31
Figure 9-25: Power Supply Circuit ......................................................................................................................... 9-31
Figure 9-26: Power Control Circuit......................................................................................................................... 9-31
Figure 9-32: Printer Interface Circuit...................................................................................................................... 9-31
Figure 9-33: Printer Flex Circuit............................................................................................................................. 9-31
Figure 9-34: N-20PA Main PCB Schematic Diagram ............................................................................................ 9-31
Figure 9-35: N-20PA Auxiliary PCB Schematic Diagram...................................................................................... 9-31
Figure 9-36: N-20PA Flex Circuit Schematic Diagram .......................................................................................... 9-31

TABLES

Table 4-1 : Troubleshooting the N-20PA.................................................................................................................. 4-2
v