Valleylab Force FX-C User manual

SERVICE MANUAL

Force FXTM-C

Electrosurgical Generator

with Instant Response™ Technology

Service Manual

Force FXTM-C Electrosurgical Generator

with Instant Response™ Technology

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 FXTM_C Electrosurgical Generator only. Additional information about using the generator is available in the Force FXTM-C

Electrosurgical Generator User's Guide.

Equipment covered in this manual:

Valleylab Force FX™-C Electrosurgical Generator vvith Instant Response™ Technology-

110-120 V ~ Nominal, 220-240 V ~ Nominal (auto selected)

The Force FX-C Electrosurgical Generator Service Manual consists of h-vo parts-the text (part 1 of 2) and a Schematics Supplement (part 2 of 2) which contains the schematics.

Valleylab Part Number: 945 103 064 (1 of 2)

Effective Date: September 2000

Patent Information: Protected by U.S. Pat. Nos. 4,416,276; 4,416,277; 4,658,820; 5,599,344; and 5,628,745.

Trademark Acknowledgments:

CUSATM, CUSA EXceFM, Force GSUTM, PolyHesiveT!l.1, REMTM, CEMTM, Force ArgonTM, Force FXTM, and Instant Response™ are trademarks of Valleylab; Teflon® is a registered trademark of E.I. DuPont de Nemours and Co., Inc.

Manufactured by:

Valleylab

Boulder, Colorado 80301-3299 USA

For information call:

1-800-255-8522/1-303-530-2300

Made in USA Printed in USA

©1999, 2000 Valleylab All rights reserved.

ii	Force F)(TM -C Service Manual

Conventions Used in this Guide

Warning

"'Important

Indicates an operating tip or maintenance suggestion.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

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.

Force FXTM-C Service Manual

iii

Table of Contents

Preface	ji
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			2·8
Rear Panel	2·9
Footswitch Receptacles				2·10
Monopolar Footswitch Receptacles 2·10
Bipolar Footswitch Receptacle							2·10
Power Entry Module			2·11
Activation Tone Volume Control						2·11
Option Panel	2·12
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

IV	Force FXTM·C Service Manual

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					3-5
High Frequency (RF) Leakage Current 3-6
Input Power	3-6
Standards and IEC Classifications				3-7
Class I Equipment(IEC 601-1)				3-7
Type CF Equipment (IEC 601-1)/Defibriliator Proof						3-7
Drip Proof (IEC 601-2-2)			3-7
Electromagnetic Interference 3-8
Electromagnetic Compatibility (IEC 601-1-2 and IEC 601-2-2)							3-8
Voltage Transients (Emergency Generator Mains Transfer)							3-8
Output Characteristics		3-9
Maximum Output for Bipolar and Monopolar Modes						3-9
Maximum Output for Ultrasonic Electrosurgery					3-9
Available Power Settings in Watts 3-10
Output Waveforms 3-11
Output Power vs. Resistance Graphs				3-13
Bipolar Graphs		3-13
Monopolar Cut Graphs			3·15
Monopolar Coag Graphs			3-16

Sec"lion 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/O Expansion		4-7
Keyboard Interface and Activation Inputs						4-7
Power Supply Supervisor Circuit					4-8
AID and D/A Conversion				4-8
Waveform Generation (T_ON ASIC)					4-8
T_ON Average Check			4-9
Audio Alarm		4-9

Force FXTM-C Service Manual

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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

vi	Force F)(TM-C Service Manual

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						5-21
Checking High Frequency Leakage Current						5-23
Calibrating the Force FX-C Generator				5-24
Preparing for Calibration			5-25
Entering Calibration Mode			5-25
Exiting Calibration Mode			5-26
Verify the Force FX-C 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		6-20
Correcting IC U6 Malfunctions		6-22

Correcting T__ON ASIC Malfunctions 6-24

Correcting Battery-Backed RAM Malfunctions 6-26

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Section 7. Replacement Procedures

Interconnect Diagram		7-2
Battery Replacement		7-3
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 Reinsta" the Front Panel Components										7·9
Insta" 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

viii	Force F)(TM-C Service Manual

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

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

Appendix B. Board Drawings and Schematics

Force FXTM-C Service Manual

ix

List of Figures

Figure 3-1.	Output power versus impedance for the Precise bipolar mode			3-13
Figure 3-2.	Output power versus impedance for the Standard bipolar mode			3-14
Figure 3-3.	Output power versus impedance for the Macrobipolar mode 3-14
Figure 3-4.	Output power versus impedance for the Low cut mode		3-15
Figure 3-5.	Output power versus impedance for the Pure cut mode		3-15
Figure 3-6.	Output power versus impedance for the Blend cut mode		3-16
Figure 3-7.	Output power versus impedance for the Desiccate coag mode			3-16
Figure 3-8.	Output power versus impedance for the LCF Fulgurate
	coag mode	3-17
Figure 3-9.	Output power versus impedance for the Spray coag mode 3-17
Figure 3-10.	Output power versus impedance for the Fulgurate coag mode			3-18
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 using 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 9-1.	Generator Assembly Illustrated Parts	9-2
Figure 9-2.	Generator Assembly Illustrated Parts-continued		9-3
Figure 9-3.	Front Panel Assembly Illustrated Parts	9-6
Figure 9-4.	Front Panel Assembly Illustrated Parts-continued		9-7

x	Force F)(TM-C Service Manual

Figure 9-5.	Power Supply/RF Board Assembly Illustrated Parts 9-14
Figure 9-6.	Power Supply/RF Board Assembly Illustrated
	Parts-continued 9-15

Schematic Supplement

Schematic 1.	Control board layout 8-1
Schematic 2.	Control board schematic, page 1 of 3	8-2
Schematic 3.	Control board schematic, page 2 of 3	8-3
Schematic 4.	Control board schematic, page 3 of 3	8-4
Schematic 5.	Display board, page 1 of 4 8-5
Schematic 6.	Display board schematic, page 2 of 4	8-6
Schematic 7.	Display board schematic, page 3 of 4	8-7
Schematic 8.	Display board schematic, page 4 of 4	8-8
Schematic 9.	Footswitch board, page 1 of 3 8-9
Schematic 10.	Footswitch board schematic, page 2 of 3		8-10
Schematic 11.	Footswitch board schematic, page 3 of 3		8-11
Schematic 12.	Power Supply/RF board, page 1 of 8	8-12
Schematic 13.	Power Supply/RF board schematic. page 2 of 8			8-13
Schematic 14.	Power Supply/RF board schematic, page 3 of 8			8-14
Schematic 15.	Power Supply/RF board schematic, page 4 of 8			8-15
Schematic 16.	Power Supply/RF board schematic, page 5 of 8			8-16
Schematic 17.	Power Supply/RF board schematic, page 6 of 8			8-17
Schematic 18.	Power Supply/RF board schematic. page 7 of 8			8-18
Schematic 19.	Power Supply/RF board schematic, page 8 of 8			8-19

Force F)(TM-C Service Manual

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Notes

xii	Force FXTM-C Service Manual

Introduction

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

Force F)(TIfLC Service Manual

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General Description

General Description

The Force FX-C generator is an isolated output electrosurgical generator that provides the appropriate power for cutting, desiccating, and fulgurating tissue during bipolar and monopolar surgery.

Features include:

•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 VaUeylab REM Contact Quality Monitoring System

•Support for ultrasonic electrosurgery using the Valleylab

CUSA System 200 or CUSA EXcel 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, R5-232 serial port, and expansion port

•Force GSU system and Force Argon system compatibility.

1-2	Force F)(TM-C Service Manual

List of Components

List of Components

The Force FX-C 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 pmver 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 p,mel components-volume control; three foots\,v1tch receptacles; pmver 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 po.ver supply; fan; and heat sinks.

A handle is located on the tmderside of the chassis.

Details about the interaction of the main components and circuit board descriptions are provided in Section -i, 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 it 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.

Do not stack equipment on top of the generator or place the generator on top of electrical equipment (except a Force GSU unit or Force Argon 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.

Do not turn the activation tone down to an inaudible level. The activation tone alerts the surgical team when an accessory is active.

Force FXTfILC Service Manual

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Service Personnel Safety

Active Accessories

Patient Return Electrodes

Warning

Fire!Explosion Hazards

1-4	Force F)(TM-C Service Manual

Service Personnel Safety

Electric Shock Hazards

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.

Servicing

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

Force FXTM-C Service Manual

1-5

Service Personnel Safety

Ca libration

Cleaning

1-6	Force FXTM-C Service Manual

Controls, Indicators, and Receptacles

This section describes the front and rear panels, including all controls,

indicators, receptacles, the fuse drawer, and ports.

Force FX-CTM Service Manual

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Front Panel

Front Panel

Recall button

Pressing this button sets the generator to the most recently used mode and power settings.

REM alarm indicator

CEM indicator

Bipolar controls

Cut controls

Coag controls

'a/IevIab",

BIPOLAR

IMACROI BB

POWER

I

Bipolar Instrument receptacle

Power switch

This switch supplies power to the generator.

Press (0) to turn off the generator. Press ( I ) to turn on the generator.

Monopolar 1/CEM Instrument receptacle

Monopolar 2 Instrument receptacle

Patient return electrode receptacle

For monopolar electrosurgery, connect a patient return electrode to this receptacle.

2-2	Force FX-CTM Service Manual

Bipolar Controls

Bipolar Controls

Bipolar indicator

Wilen you activate bipolar, tllis indicator illuminates blue and an activation tone sounds.

Bipolar display

Shows the power setting, in watts,

for the selected mode.

BIPOLAR

Power buttons

Press ~ to increase the power. Press v to decrease the power.

Mode indicators

Illuminate green when you press the corresponding mode button.

Precise mode button

Select for fine bipolar tissue desiccation.

Precise Standard

MACRO

Macro mode button

Select for macrobipolar output.

Standard mode buDon

Select for standard bipolar tissue desiccation. This is the default bipolar mode.

Force FX-CTM Service Manual

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Bipolar Instrument Receptacle

Bipolar Instrument Receptacle

o o o

o

BIPOLAR

You can connect either a footswitching or handswitching bipolar instrument to the Bipolar receptacle.

Connect a footswitching instrument with a two-pin connector.

or

Connect a handswitching instrument with a three-pin connector.

2-4	Force FX-CTM Service Manual

Monopolar Cut Controls

Monopolar Cut Controls

Cut indicator

When you activate cut, this indicator illuminates yellow and an activation tone sounds.

Power buttons

Press .6. to increase the power. Press v to decrease the power.

CUT

C/CICI

'_1'_1'_1

Cut display

Shows the power setting. in watts, for the selected mode.

Mode indicators

Illuminate green when you press the corresponding mode button.

Low mode button

Select for a cut with little or no sparking.

	LOW		PURE		BLEND

Blend mode button

Select for slower cutting and additional hemostasis.

Pure mode button

Select for an even cut with little or no hemostasis.

This is the default monopolar cut mode.

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Monopolar Coag Controls

Monopolar Coag Controls

Coag indicator

When you activate coag, this indicator illuminates blue and an activation tone sounds.

\

Power buttons

Press Ll to increase the power. Press V to decrease the power.

COag display

Shows the power setting, in

watts, for the selected mode.

---------

COAG

,-,,-,,-,	",-=a~---J		Mode indicators
,-,,-,,-,	[V]	]	Illuminate green when you press
- - -		DOWN	the corresponding mode button.

~

Desiccate Fulgurate

~B MED

Desiccate mode button

Select to desiccate the area of tissue that is in direct contact with the active electrode.

Fulgurate mode button

Select to fulgurate an area of tissue with aspray of sparks.

This unit is equipped with an additional fulgurate mode which incorporates a lower crest factor (LCF) than the factory default fulgurate mode. Details about this additional fulgurate mode, LCF fulgurate, are provided later in this manual.

This is the default monopolar coag mode. However, the default coag mode can be changed to either Desiccate or Spray through the serial port on the rear panel; contact your institution's Biomedical Engineering Department.

Spray

[ HIGH I

~button

Select to evenly coagulate awide area of tissue with a spray of sparks; penetration is shallower and tissue area is larger than in fulgurate mode.

2-6	Force FX-CTM Service Manual

Monopolar Instrument Receptacles

Monopolar Instrument Receptacles

Warning

		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.
		You can connect a footswitching or handswitching monopolar instrument
		to the monopolar receptacles. Some footswitching instruments may
		require a single-pin adapter (E0502 Series), available from Val1eylab.
C§:ooo I		Connect one monopolar instnlment to the Monopolar IjCEM instrument
		instrument
		receptacle:
		• A single-pin footswitching instrument or a three-pin handswitching
		or
MONOPOLAR 11CEM		• A four-pin CUSA handpiece with CEM nosecone. (The CEM indicator
		in the upper right of the front panel iHminates green. Refer to
		Connecting thr CUSA Handpircc with CE1Vf Noseconc in Section 5.)

o

Connect one monopolar instrument to the Monopolar 2 instrument receptac1e:

•A single-pin foots,·vitching instrument or a three-pin handswitching instrument

MONOPOLAR2

Force FX-CTM Service Manual

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REM Alarm Indicator

REM Alarm Indicator

REM Alarm

LJtJ

This indicator illuminates red until you properly apply a REM patient rehlrn electrode to the patient and connect it to the generator. Then the indicator illuminates green. (When you connect an electrode without the REM safety feahrre, the indicator does not illuminate.)

If the REM system senses an alarm condition, the indicator flashes red until you correct the alarm condition-then the indicator illuminates green. (If you are using a return electrode without the REM safety feature, the red indicator light is extinguished when you correct the alarm condition.)

2-8	Force FX-CTM Service Manual

Rear Panel

Rear Panel

Line fuse locator

Volume control

Power entry module

Monopolar Footswitch receptacles

Option panel

War'..-ng RmkafFire Fi."'PlaalFuse a~ Markoo 250V, Fd.OA 1,110 12~:

:i'5CV, HOA(Z<'JJ-240:,

~DANGER

El!pkJ!llOrl rlsj( if USa<] with 1'Ia!TlmaOle a"e-'.lthf.ltlC~

Rmque D'F...xpIOslOIl.Ne pal> cmp~)'('r ell pr6!u,Inoo d'~nesthestque$ ln11a~i)bl:es

. I

Equipotential grounding lug

Use to connect the generator to earth ground.

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Footswitch Receptacles

Footswitch Receptacles

The rear panel contains three footswitch receptacles: two for monopolar and one for bipolar.

MONOPOLAR1

FOOTSWITCH

o

MONOPOLAR2

FOOTSWITCH

o

Monopolar Footswitch Receptacles

You must connect a monopolar footswitch if you connect a monopolar footswitching instrument to the generator.

Connect a two-pedal monopolar footswitch to the Monopolar 1 Footswitch receptacle.

The connected footswitch activates monopolar output for the instrument that is connected to the Monopolar 1/CEM Instrument receptacle on the front panel.

Connect a two-pedal monopolar footswitch to the Monopolar 2 Footswitch receptacle.

The connected footswitch activates monopolar output for the instrument that is connected to the Monopolar 2 Instrument receptacle on the front panel.

BIPOLAR

FOOTSWITCH

C

Bipolar Footswitch Receptacle

You must connect a bipolar footswitch if you connect a bipolar footswitching instrument to the generator.

Connect a single-pedal bipolar footswitch to the Bipolar Footswitch receptacle.

The connected footswitch activates bipolar output for the instrument that is connected to the Bipolar Instrument receptacle on the front panel.

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