Table of Contents
& List of Illustrations
Section Title
Page
TM
3.0
Theory of Operation ................................................................................... 3-1
3.1
Mode Descriptions .................................................................................................. 3-1
3.1.1
Cut Major Modes ..............................................................................................................................3-1
3.1.2
COAG Major Modes .........................................................................................................................3-1
3.1.3
Bipolar Major Modes ........................................................................................................................3-2
3.1.4
Advanced Specialty Modes ................................................................................................................3-2
3.2
System Overview ..................................................................................................... 3-2
3.2.1
High Voltage Power Supply (HVPS) ................................................................................................3-3
3.2.2
RF Amplifier and Transformer ..........................................................................................................3-4
3.2.3
Electrosurgical Outputs .....................................................................................................................3-5
3.2.4
Activation Command Sensing ...........................................................................................................3-5
3.2.5
Automatic Return Monitor (A.R.M.™) .............................................................................................3-5
3.2.6
Low Voltage Power Sources ..............................................................................................................3-5
3.2.7
System Controllers and Monitor .......................................................................................................3-5
3.2.8
Low Voltage Power Monitoring ........................................................................................................3-6
3.2.9
Operator Control Panel .....................................................................................................................3-6
3.2.10
Activation Tones ................................................................................................................................3-6
3.2.11
Activation Relay Connector ...............................................................................................................3-7
3.3
Optional System Configurations ............................................................................. 3-7
4.0 Maintenance ................................................................................................ 4-1
4.1
General Maintenance Information ........................................................................... 4-1
4.2
Maintenance Personnel ............................................................................................ 4-1
4.3
Assembly Breakdown/Parts Access .......................................................................... 4-1
4.3.1
Top Cover Removal and Replacement ...............................................................................................4-1
4.3.2
Bezel Removal and Replacement .......................................................................................................4-2
4.3.3
Processor Board Removal and Replacement ......................................................................................4-3
4.3.4
Transformer Board Removal and Replacement ..................................................................................4-3
4.3.5
Output Board Removal and Replacement .........................................................................................4-4
4.3.6
RF Amp Board Removal and Replacement .......................................................................................4-4
4.3.7
Low Voltage Power Supply Module Removal and Replacement ........................................................4-5
4.3.8
High Voltage Power Supply Removal and Replacement ....................................................................4-6
4.3.9
Rear Panel with Board Removal and Replacement ............................................................................4-6
4.3.10
Back Panel Board Removal and Replacement ....................................................................................4-7
4.3.11
Display Boards Removal and Replacement ........................................................................................4-7
4.3.12
Power Transistor Replacement ...........................................................................................................4-8
4.4 Cleaning ................................................................................................................. 4-8
4.5
Periodic Inspection.................................................................................................. 4-8
4.6
Periodic Performance Testing ............................................................................................................4-9
4.6.1
Chassis Ground Integrity ...................................................................................................................4-9
4.6.2
Displays, Alarms and Commands ......................................................................................................4-9
4.6.3
Output Power ...................................................................................................................................4-9
4.6.4
RF Leakage Measurement ...............................................................................................................4-10
4.6.5
Line Frequency Leakage ..................................................................................................................4-12
4.6.7
Output Coupling Capacitor Check ..................................................................................................4-14
4.7
System Calibration ................................................................................................ 4-14
4.7.1
Calibration Preliminaries .................................................................................................................4-14
4.7.2 Selecting the Mode to Calibrate ......................................................................................................4-16
4.7.3
Calibrating a Monopolar Mode .......................................................................................................4-16
