ConMed 7550 - Table of Contents

Table of Contents
& List of Illustrations
Section Title Page
1.0 General Information ...........Refer to Operator’s Manual (P/N 60-7551)
2.0 System Components .................................... Refer to Operator’s Manual
3.0 Operation .................................................... Refer to Operator’s Manual
4.0 Operator Service ......................................... Refer to Operator’s Manual
5.0 Technical Information ................................. Refer to Operator’s Manual
6.0 Circuit Descriptions .......................................................................... 6-1
6.1 Introduction ........................................................................................................ 6-1
6.2 Display Panel Assembly [A5] ............................................................................... 6-1
6.2.1 General Information ..........................................................................................................6-1
6.2.2 Mailbox [U19] ..................................................................................................................
6-1
6.2.3 Power Adjustments [U16 & U33] ..................................................................................
6-1
6.2.4 Activation Requests [U16 & U33] ....................................................................................
6-2
6.2.5 Mode Select Encoders [U31 & U32] ................................................................................
6-2
6.2.6 Display Drivers - Seven Segment
[U14, U20, U39, U40, U41, & U17] .........................6-3
6.2.7 Indicator Driver [U34] .....................................................................................................
6-3
6.2.8 Firmware [U28 & U1] ......................................................................................................
6-3
6.2.9 RAM [U2 -6116] ..............................................................................................................
6-3
6.2.10 A/D Inputs [Control Microcontroller] ..............................................................................
6-3
6.2.11 A/D Inputs [Monitor Microcontroller] .............................................................................
6-4
6.2.12 EEPROM & Driver [U37, U27] ......................................................................................
6-4
6.2.13 D/A Converter [U12] .......................................................................................................
6-4
6.2.14 Keyboard Scanner [U5] ....................................................................................................
6-5
6.2.15 5V Monitoring [U29] .......................................................................................................
6-5
6.2.16 Output PIA [U21] ............................................................................................................
6-5
6.2.17 T_MON [U35] .................................................................................................................
6-5
6.3 Power Control Assembly [A4] ............................................................................. 6-5
6.3.1 Power Control - Full Bridge Amplifier ..............................................................................6-6
6.3.2 RF Logic [U7 on the Power Control Assembly] ...............................................................
6-7
6.3.3 Power Control - I/O Signals ..............................................................................................6-8
6.3.4 ABC
™ Arc Sense ...............................................................................................................6-8
6.4 High Voltage Power Supply [A7] ........................................................................ 6-9
6.4.1 Power Supply Topology ....................................................................................................6-9
6.4.2 Phase Control Output ......................................................................................................
6-9
6.4.3 HVPS Isolation Components ..........................................................................................
6-10
6.4.4 HVPS Low Voltage Components ...................................................................................
6-11
6.5 HV/Flow Control Assembly [A1] ..................................................................... 6-11
6.5.1 Line Synchronization Circuit ...........................................................................................6-11
6.5.2 HV Regulation Control Loop .........................................................................................
6-12
6.6 Argon Flow Control [A1] ................................................................................. 6-13
6.6.1 Pneumatic Circuit ............................................................................................................6-13
6.6.2 Mass Flow Rate Regulation ............................................................................................
6-14
6.6.3 Smart Sense .....................................................................................................................
6-15
6.7 Full Bridge Amplifier [A8] ................................................................................ 6-15