Valleylab Force FX-8C User manual

Service Manual
Force FX ™ -8C
Electrosurgical Generator
with Instant Response ™ Technology

ii Force FX-8C Service Manual
Preface
This manual and the equipment it describes are for use only by qualified
medical professionals trained in the particular technique and surgical
procedure to be performed. It is intended as a guide for servicing the
Valleylab Force FX™-8C Electrosurgical Generator only. Additional
information about using the generator is available in the Force FX™-8C
Electrosurgical Generator User’s Guide .
Equipment covered in this manual:
Valleylab Force FX™-8C Electrosurgical Generator with
Instant Response™ Technology—
100–120 V ~ Nominal, 220–240 V ~ Nominal (auto selected)
The Force FX™-8C Electrosurgical Generator Service Manual consists of
two parts—the text (part 1 of 2) and a Schematics Supplement (part 2 of 2)
which contains the schematics.
Valleylab Part Number:
945 103 068
Effective Date:
September 2000
Trademark Acknowledgments:
Force GSU™ Argon System, PolyHesive™ Adhesive Conductor, REM™
Contact Quality Monitoring System, Force EZ™ Electrosurgical
Generator, Force Argon™ II-20 System, Instant Response™ Technology,
The EDGE™ Coated Electrode, ACCUVAC™ Smoke Evacuation
Attachment, and CUSA™ or CUSA EXcel™ Ultrasonic Surgical Aspirator
are trademarks of Valleylab.
Teflon is a registered trademark of E.I du Pont de Nemours and Company.
Patent Information:
Protected by U.S. Pat. Nos. 4,416,276; 4,416,277; 4,658,820; 5,599,344; and
5,628,745.
Manufactured by:
Valleylab,
a division of Tyco Healthcare Group LP
Boulder, Colorado 80301-3299 USA
Tyco Healthcare UK Ltd.
Gosport, PO130AS, UK
For information call:
1-303-530-2300
Made in USA
Printed in USA
©2000 Valleylab All rights reserved. Contents of this publication may not
be reproduced without the written permission of Valleylab.
Caution
Federal (USA) law restricts this device to sale by or on the order of a physician.

Force FX-8C Service Manual iii
Important
Conventions Used in this Guide
Indicates an operating tip or
maintenance suggestion.
Warning
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
Caution
Indicates a hazardous situation which, if not avoided, may result in minor or
moderate injury.
Notice
Indicates a hazard which may result in product damage.

iv Force FX-8C Service Manual
Table of Contents
Preface
ii
Conventions Used in this Guide
iii
List of Figures
x
Section 1. Introduction
General Description
1-2
List of Components
1-3
Service Personnel Safety
1-3
General
1-3
Fire/Explosion Hazards 1-4
Electric Shock Hazards
1-5
Servicing
1-5
Calibration 1-6
Cleaning
1-6
Section 2. Controls, Indicators, and Receptacles
Front Panel
2-2
Bipolar Controls
2-3
Bipolar Instrument Receptacle
2-4
Monopolar Cut Controls
2-5
Monopolar Coag Controls 2-6
Monopolar Instrument Receptacles
2-7
REM Alarm Indicator
2-7
Rear Panel
2-8
Footswitch Receptacles
2-9
Monopolar Footswitch Receptacles
2-9
Bipolar Footswitch Receptacle
2-9
Power Entry Module
2-10
Activation Tone Volume Control
2-10
Option Panel
2-11
Section 3. Technical Specifications
Performance Characteristics
3-1
General 3-1
Dimensions and Weight
3-2
Operating Parameters
3-2
Transport and Storage 3-2
Duty Cycle
3-3
Internal Memory
3-3
Audio Volume
3-3

Force FX-8C Service Manual v
REM Contact Quality Monitor
3-4
Serial Port
3-5
RF Activation Port
3-5
Expansion Port
3-5
Low Frequency (50–60 Hz) Leakage Current
3-6
High Frequency (RF) Leakage Current
3-6
Input Power
3-7
Standards and IEC Classifications
3-8
Class I Equipment (IEC 601-1)
3-8
Type CF Equipment (IEC 601-1)/Defibrillator Proof 3-8
Drip Proof (IEC 601-2-2)
3-9
Electromagnetic Interference
3-9
Electromagnetic Compatibility (IEC 601-1-2 and IEC 601-2-2)
3-9
Voltage Transients (Emergency Generator Mains Transfer)
3-9
Output Characteristics
3-10
Maximum Output for Bipolar and Monopolar Modes
3-10
Maximum Output for Ultrasonic Electrosurgery
3-10
Available Power Settings in Watts
3-11
Output Waveforms
3-12
Output Power vs. Resistance Graphs 3-14
Bipolar Graphs
3-14
Monopolar Cut Graphs
3-17
Monopolar Coag Graphs 3-20
Section 4. Principles of Operation
Block Diagram
4-2
Functional Overview
4-3
Instant Response Technology
4-3
Ultrasonic Electrosurgery 4-3
Simultaneous Coag
4-3
REM Contact Quality Monitoring System
4-4
Control Board
4-5
Microcontrollers
4-5
Main Microcontroller
4-5
Feedback Microcontroller
4-6
Shared RAM
4-7
I/0 Expansion
4-7
Keyboard Interface and Activation Inputs
4-7
Power Supply Supervisor Circuit
4-8
A/D and D/A Conversion
4-8
Waveform Generation (T_ON ASIC)
4-8
T_ON Average Check
4-9
Audio Alarm
4-9

vi Force FX-8C Service Manual
Serial Interface
4-9
Dosage Error Algorithm
4-10
Instant Response Algorithm 4-11
Front Panel
4-12
Membrane Keyboard
4-12
Power Switch
4-12
REM Connector/Switch
4-12
CEM Mechanism Switch
4-12
Display Board
4-13
RF Indicator Lamps
4-13
REM Indicators
4-13
LED and Seven-Segment Display Drivers
4-13
CEM Switch Circuit
4-14
Mode Selection and Power Control Switches
4-14
Footswitch Board
4-15
Footswitch Decode Circuit
4-15
Audio Circuit 4-16
Power Supply/RF Board
4-17
Power Supply/RF Board Interfaces
4-18
High Voltage Power Supply 4-18
Low Voltage Power Supply 4-21
RF Output Stage 4-21
Spark Control Circuit 4-24
RF Leakage Reduction Circuit 4-25
REM Circuit 4-25
IsoBloc Circuit 4-25
Temperature Sense Circuits 4-26
Section 5. Setup, Tests, and Adjustments
Setting Up the Generator 5-2
Connections for Bipolar or Macrobipolar Surgery 5-4
Setting the Bipolar Output 5-5
Connections for Monopolar Surgery 5-6
Selecting Cut and Coag Modes 5-8
Simultaneous Coag 5-8
Using Two Generators Simultaneously 5-9
Connecting the CUSA Handpiece with CEM Nosecone 5-10
Setting the Output Power 5-11
Simultaneous Coag with a CUSA System 5-11
Changing the Mode 5-11
Changing the Power Setting 5-11
Activating the Surgical Instrument 5-12

Force FX-8C Service Manual vii
Periodic Safety Check 5-13
Recommended Test Equipment 5-13
Inspecting the Generator and Accessories 5-14
Inspecting the Internal Components 5-15
Testing the Generator 5-16
Verifying REM Function 5-17
Confirming Outputs 5-17
Check the Output for the Cut Modes 5-19
Check the Output for the Coag Modes 5-20
Checking Low Frequency Leakage Current and Ground Resistance 5-21
Checking High Frequency Leakage Current 5-23
Calibrating the Generator 5-24
Preparing for Calibration 5-25
Entering Calibration Mode 5-25
Exiting Calibration Mode 5-26
Verify the Generator Data 5-26
Adjust the Calendar 5-27
Adjust the Clock 5-28
Check and Adjust the REM Oscillator Frequency and Impedance 5-29
Check and Adjust the Current Sense Gain 5-30
Check and Adjust the Voltage Sense Gain 5-32
Check and Adjust the Reactance Gain 5-34
Check and Adjust the ECON Factor 5-36
Using the RS-232 Serial Port 5-40
Establish the Communications Link 5-40
Enter the Commands 5-41
Disconnect the Computer from the Generator 5-44
Section 6. Troubleshooting
Inspecting the Generator 6-1
Inspecting the Receptacles 6-2
Inspecting the Internal Components 6-3
Correcting Malfunctions 6-4
Responding to System Alarms 6-10
Correcting IC U3 Malfunctions 6-19
Correcting IC U6 Malfunctions 6-21
Correcting T_ON ASIC Malfunctions 6-23
Correcting Battery-Backed RAM Malfunctions 6-25
Section 7. Replacement Procedures
Interconnect Diagram 7-2
Battery Replacement 7-3

viii Force FX-8C Service Manual
Control Board Replacement 7-4
Display Board Replacement 7-5
Remove the Display Board 7-5
Install the Display Board 7-6
Display Board Seven-Segment LED Replacement 7-7
Fan Replacement 7-8
Footswitch Board Replacement 7-8
Front Panel Replacement 7-9
Remove the Front Panel Assembly 7-9
Remove and Reinstall the Front Panel Components 7-9
Install the Front Panel Assembly 7-10
Front Panel REM Module Replacement 7-11
Front Panel Power Switch Replacement 7-12
Fuse Replacement 7-13
Replacing Fuses in the Fuse Drawer 7-13
Replacing the Fuse on the Power Supply/RF Board 7-14
Left Front Heat Sink and Component Replacement 7-15
Remove the Left Front Heat Sink 7-15
Replace Left Front Heat Sink Components 7-16
Install the Left Front Heat Sink 7-16
Left Rear Heat Sink and Component Replacement 7-17
Remove the Left Rear Heat Sink 7-17
Replace Left Rear Heat Sink Components 7-18
Install the Left Rear Heat Sink 7-19
Right Heat Sink and Component Replacement 7-20
Remove the Right Heat Sink 7-20
Replace Right Heat Sink Components 7-21
Install the Right Heat Sink 7-22
Low Voltage Power Supply Replacement 7-23
Remove the Low Voltage Power Supply 7-23
Install the Low Voltage Power Supply 7-24
Power Entry Module Replacement 7-25
Remove the Power Entry Module 7-25
Install the Power Entry Module 7-26
Power Supply/RF Board Replacement 7-27
Remove the Power Supply/RF Board Assembly 7-27
Remove Components from the Old Board 7-28
Install Components on the New Board 7-29
Install the Power Supply/RF Board Assembly 7-30

Force FX-8C Service Manual ix
Section 8. Repair Policy and Procedures
Responsibility of the Manufacturer 8-1
Returning the Generator for Service 8-2
Obtain a Return Authorization Number 8-2
Clean the Generator 8-2
Ship the Generator 8-3
Returning Circuit Boards 8-3
Service Centers 8-4
Section 9. Service Parts
Ordering Replacement Parts 9-1
Generator Assembly 9-2
Parts List 9-4
Front Panel Assembly 9-6
Parts List 9-8
Control Board Components 9-9
Display Board Components 9-10
Footswitch Board Components 9-11
Power Supply/RF Board Assembly 9-14
Parts List 9-16
Power Supply/RF Board Components 9-18
Appendix A. Warranty
Schematics Supplement. Board Drawings and Schematics

xForce FX-8C Service Manual
List of Figures
Figure 2-1. Layout of controls and indicators on the front panel 2-2
Figure 2-2. Buttons and indicators for bipolar controls 2-3
Figure 2-3. Buttons and indicators for cut controls (monopolar) 2-5
Figure 2-4. Buttons and indicators for coag controls (monopolar) 2-6
Figure 2-5. Controls and receptacles on the rear panel 2-8
Figure 2-6. Components in the power entry module 2-10
Figure 2-7. The three ports behind the option panel 2-11
Figure 3-1. Output power versus impedance for Precise bipolar mode 3-14
Figure 3-2. Precise bipolar mode—output power vs. peak voltage 3-14
Figure 3-3. Output power versus impedance for Standard bipolar mode 3-15
Figure 3-4. Standard bipolar mode—output power vs. peak voltage 3-15
Figure 3-5. Output power versus impedance for Macrobipolar mode 3-16
Figure 3-6. Macrobipolar mode—output power vs. peak voltage 3-16
Figure 3-7. Output power versus impedance for Low cut mode 3-17
Figure 3-8. Low cut mode—output power vs. peak voltage 3-17
Figure 3-9. Output power versus impedance for Pure cut mode 3-18
Figure 3-10. Pure cut mode—output power vs. peak voltage 3-18
Figure 3-11. Output power versus impedance for Blend cut mode 3-19
Figure 3-12. Blend cut mode—output power vs. peak voltage 3-19
Figure 3-13. Output power versus impedance for Desiccate 1 coag mode 3-20
Figure 3-14. Desiccate 1 coag mode—output power vs. peak voltage 3-20
Figure 3-15. Desiccate 2 coag mode—load resistance vs. output power 3-21
Figure 3-16. Desiccate 2 coag mode—output power vs. peak voltage 3-21
Figure 3-17. Desiccate 3 coag mode—load resistance vs. output power 3-22
Figure 3-18. Desiccate 3 coag mode—output power vs. peak voltage 3-22
Figure 3-19. Output power versus impedance for Fulgurate coag mode 3-23
Figure 3-20. Fulgurate coag mode—output power vs. peak voltage 3-23
Figure 3-21. Output power versus impedance for LCF Fulgurate mode 3-24
Figure 3-22. LCF Fulgurate mode—output power vs. peak voltage 3-24
Figure 3-23. Output power versus impedance for Spray coag mode 3-25
Figure 3-24. Spray coag mode—output power vs. peak voltage 3-25

Force FX-8C Service Manual xi
Figure 5-1. Bipolar or macrobipolar connections—footswitch activation and a
handswitching or footswitching instrument 5-4
Figure 5-2. Bipolar or macrobipolar connection—handswitching
instrument 5-5
Figure 5-3. Monopolar connection—footswitch activation and a footswitching or
handswitching instrument using Monopolar 1 Footswitch receptacle
and Monopolar 1/CEM Instrument receptacle 5-6
Figure 5-4. Monopolar connection—footswitch activation and a footswitching or
handswitching instrument using Monopolar 2 Footswitch receptacle
and Monopolar 2 Instrument receptacle 5-7
Figure 5-5. Monopolar connection—handswitch activation and a monopolar
handswitching instrument using either Monopolar Instrument
receptacle 5-7
Figure 5-6. Connections for simultaneous coag—two handswitching
instruments 5-9
Figure 5-7. Connection for simultaneous coag—two footswitching
instruments 5-9
Figure 5-8. Connections for combined monopolar/ultrasonic surgery 5-10
Figure 5-9. Leakage current test circuit per IEC 60601-1 5-21
Figure 7-1. Removing and disconnecting the power switch 7-12
Figure 7-2. Replacing fuses in the fuse drawer 7-13
Figure 7-3. Replacing left front heat sink components 7-16
Figure 7-4. Components of the left rear heat sink 7-18
Figure 7-5. Components of the right heat sink 7-21
Figure 7-6. Low voltage power supply 7-24
Figure 7-7. Cable connections on the power entry module 7-26
Figure 9-1. Generator assembly 9-2
Figure 9-2. Generator assembly – continued 9-3
Figure 9-3. Front panel assembly 9-6
Figure 9-4. Front panel assembly – continued 9-7
Figure 9-5. Power Supply/RF board assembly 9-14
Figure 9-6. Power Supply/RF board assembly – continued 9-15
Schematics Supplement
Schematic 1. Control board layout S-1
Schematic 2. Control board schematic, page 1 of 3 S-2
Schematic 3. Control board schematic, page 2 of 3 S-3
Schematic 4. Control board schematic, page 3 of 3 S-4
Schematic 5. Display board layout S-5

xii Force FX-8C Service Manual
Schematic 6. Display board schematic, page 1 of 3 S-6
Schematic 7. Display board schematic, page 2 of 3 S-7
Schematic 8. Display board schematic, page 3 of 3 S-8
Schematic 9. Footswitch board layout S-9
Schematic 10. Footswitch board schematic, page 1 of 2 S-10
Schematic 11. Footswitch board schematic, page 2 of 2 S-11
Schematic 12. Power supply/RF board layout S-12
Schematic 13. Power supply/RF board schematic, page 1 of 7 S-13
Schematic 14. Power supply/RF board schematic, page 2 of 7 S-14
Schematic 15. Power supply/RF board schematic, page 3 of 7 S-15
Schematic 16. Power supply/RF board schematic, page 4 of 7 S-16
Schematic 17. Power supply/RF board schematic, page 5 of 7 S-17
Schematic 18. Power supply/RF board schematic, page 6 of 7 S-18
Schematic 19. Power supply/RF board schematic, page 7 of 7 S-19

SECTION
1
Force FX-8C Service Manual 1-1
1Introduction
This manual provides instructions for servicing the Valleylab Force FX-8C
Electrosurgical Generator with Instant Response Technology. This section
introduces the features and components of the generator and reviews the
precautions associated with generator repair.

General Description
1-2 Force FX-8C Service Manual
General Description
The Valleylab Force FX-8C is an isolated output electrosurgical generator
that provides the appropriate power for cutting, desiccating, and
fulgurating tissue during bipolar and monopolar surgery.
It includes the following features:
• Instant Response Technology
• Three bipolar modes: precise (low), standard (medium), and macro
(macrobipolar)
• Three monopolar cut modes: low, pure, and blend
• Three monopolar coag modes: desiccate (low), fulgurate (medium),
and spray (high)
• Support for simultaneous coagulation
• The Valleylab REM Contact Quality Monitoring System
• Support for ultrasonic electrosurgery using the Valleylab CUSA
System 200 or CUSA EXcel system and a CUSA handpiece with a
CUSA electrosurgical module (CEM) nosecone
• Handswitch or footswitch activation
• Recall of most recently used mode and power settings
• Adjustable activation tone volume
• An RF activation port, RS-232 serial port, and expansion port
• Force GSU system and Force Argon system compatibility.

List of Components
Introduction
Force FX-8C Service Manual 1-3
List of Components
The Force FX-8C generator is a self-contained unit, consisting of a main
enclosure (cover and base) and power cord. The main components of the
generator are the following:
• Front panel components—power switch; controls for setting the modes
and output power; a button for recalling the power settings and modes
that were used last; receptacles for connecting electrosurgical
accessories; and indicators that alert you to the current settings and
patient return electrode status.
• Rear panel components—volume control; three footswitch receptacles;
power entry module; equipotential grounding lug; and three ports
(serial port, RF activation port, and expansion port).
• Internal components—control (microcontroller) board; display board;
footswitch board; power supply/radio frequency (RF) board; low
voltage power supply; fan; and heat sinks.
A handle is located on the underside of the chassis.
For details about the interaction of the main components and circuit board
descriptions, refer to Section 4, Principles of Operation.
Service Personnel Safety
Before servicing the generator, it is important that you read, understand,
and follow the instructions supplied with it and with any other equipment
used to install, test, adjust, or repair the generator.
General
Warning
Use the generator only if the self-test has been completed as described.
Otherwise, inaccurate power outputs may result.
The instrument receptacles on this generator are designed to accept only one
instrument at a time. Do not attempt to connect more than one instrument at a
time into a given receptacle. Doing so will cause simultaneous activation of the
instruments.
Caution
Do not stack equipment on top of the generator or place the generator on top of
electrical equipment (except a Force GSU unit, a Force Argon unit, a CUSA
System 200, or a CUSA EXcel unit). These configurations are unstable and/or do
not allow for adequate cooling.
Provide as much distance as possible between the electrosurgical generator and
other electronic equipment (such as monitors). An activated electrosurgical
generator may cause interference with them.

Service Personnel Safety
1-4 Force FX-8C Service Manual
Active Accessories
Patient Return Electrodes
Fire/Explosion Hazards
Do not turn the activation tone down to an inaudible level. The activation tone
alerts the surgical team when an accessory is active.
Notice
If required by local codes, connect the generator to the hospital equalization
connector with an equipotential cable.
Connect the power cord to a wall receptacle having the correct voltage.
Otherwise, product damage may result.
Warning
Electric Shock Hazard Do not connect wet accessories to the generator.
Electric Shock Hazard Ensure that all accessories and adapters are correctly
connected and that no metal is exposed.
Caution
Accessories must be connected to the proper receptacle type. In particular,
bipolar accessories must be connected to the Bipolar Instrument receptacle only.
Improper connection may result in inadvertent generator activation or a REM
Contact Quality Monitor alarm.
Set power levels to the lowest setting before testing an accessory.
Notice
During bipolar electrosurgery do not activate the generator until the forceps have
made contact with the patient. Product damage may occur.
Warning
Using a patient return electrode without the REM safety feature will not activate
the Valleylab REM Contact Quality Monitoring System.
Warning
Danger: Explosion Hazard Do not install the generator in the presence of
flammable anesthetics, gases, liquids, or objects.
Fire Hazard Do not place active accessories near or in contact with flammable
materials (such as gauze or surgical drapes). Electrosurgical accessories that
are activated or hot from use can cause a fire. Use a holster to hold
electrosurgical accessories safely away from personnel and flammable materials.
Fire Hazard Do not use extension cords.
Caution

Service Personnel Safety
Introduction
Force FX-8C Service Manual 1-5
Electric Shock Hazards
Servicing
Fire Hazard For continued protection against fire hazard, replace fuses only with
fuses of the same type and rating as the original fuse.
Warning
Connect the generator power cord to a properly grounded receptacle. Do not use
power plug adapters.
Do not connect a wet power cord to the generator or to the wall receptacle.
To allow stored energy to dissipate after power is disconnected, wait at least five
minutes before replacing parts.
Always turn off and unplug the generator before cleaning.
Do not touch any exposed wiring or conductive surfaces while the generator is
disassembled and energized. Never wear a grounding strap when working on an
energized generator.
When taking measurements or troubleshooting the generator, take appropriate
precautions, such as using isolated tools and equipment, using the “one hand
rule,” etc.
Potentially lethal AC and DC voltages are present in the AC line circuitry, high
voltage DC circuitry, and associated mounting and heat sink hardware described
in this manual. They are not isolated from the AC line. Take appropriate
precautions when testing and troubleshooting this area of the generator.
High frequency, high voltage signals that can cause severe burns are present in
the RF output stage and in the associated mounting and heat sink hardware
described in this manual. Take appropriate precautions when testing and
troubleshooting this area of the generator.
Caution
Read all warnings, cautions, and instructions provided with this generator before
servicing.
The generator contains electrostatic-sensitive components. When repairing the
generator, work at a static-control workstation. Wear a grounding strap when
handling electrostatic-sensitive components, except when working on an
energized generator. Handle circuit boards by their nonconductive edges. Use an
antistatic container for transport of electrostatic-sensitive components and circuit
boards.
Notice
After installing a new low voltage power supply, verify that the voltages are
correct.
Warning

Service Personnel Safety
1-6 Force FX-8C Service Manual
Calibration
Cleaning
Caution
To avoid inadvertent coupling and/or shunting of RF currents around the resistor
elements, keep the resistors at least 10.2 cm (4 in.) away from any metal surface
including tabletops and other resistors. This is especially true if several resistors
are connected in series or parallel to obtain a specified value. Do not allow the
resistor bodies to touch each other.
Notice
After completing any calibration step, proceed to the next step to save the values
from the completed calibration step.
Do not activate the generator with any load resistor higher than 10 ohms while
calibrating the current sense gain. Otherwise, product damage will result.
Do not activate the generator with any load resistor lower than 1000 ohms while
calibrating the voltage sense gain for bipolar output. Otherwise, product damage
will result.
Do not activate the generator with any load resistor lower than 3000 ohms while
calibrating the voltage sense gain for the Low and Pure cut modes. Do not
activate the generator with any load resistor lower than 2000 ohms while
calibrating the voltage sense gain for the Blend mode. Otherwise, product
damage will result.
Do not adjust the current sense gain (I factor), the voltage sense gain (V factor),
or the reactance (Z factor) gain while the generator is activated.
After calibration, the generator will be ready to use only after you initiate the
internal self-test by turning the generator off, then on.
Calibrate the generator after you install a new battery. Calibration values are lost
when the battery is replaced.
Calibrate the generator after you install a new control board. Otherwise, the
default calibration values are used.
Calibrate the generator after you install a new heat sink or replace components
on the heat sink. Component differences may affect output waveforms.
Calibrate the generator after you install a new power supply/RF board.
Component differences may affect output waveforms.
Notice
Do not clean the generator with abrasive cleaning or disinfectant compounds,
solvents, or other materials that could scratch the panels or damage the
generator.

SECTION
2
Force FX-8C Service Manual 2-1
2Controls, Indicators, and Receptacles
This section describes the front and rear panels, including all controls,
indicators, receptacles, the fuse drawer, and ports.

Front Panel
2-2 Force FX-8C Service Manual
Front Panel
Figure 2-1.
Layout of controls and indicators on
the front panel
Recall button
Pressing this button sets the
generator to the most recently
used mode and power settings.
Bipolar controls Cut controls Coag controls
CEM
indicator
Bipolar instrument
receptacle
Monopolar 1/CEM
instrument receptacle
Monopolar 2
instrument receptacle
Power switch
This switch supplies power
to the generator.
Patient return electrode
receptacle
For monopolar electrosurgery,
connect a patient return
electrode to this receptacle.
To turn on the generator, press (|).
To turn off the generator, press (O).
REM alarm
indicator