Pfizer Valleylab Force 300 User manual

Service manual
Valleylab Force 300
Electrosurgical Generator
TED
JF
Valleylab.

Foreword
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
300
Electrosurgical
Generator
only.
| Caution o : sido a 圖
Federal
(USA)
law
restricts
this
device
to
sale
by
or
on
the
order
of
a
physician.
Trademark acknowledgments:
Force
GSU®,
IsoBloc®,
and
REM®
are
registered
trademarks
of
Valleylab Inc
Teflon
is
a
registered
trademark
of
E.
I.
duPont
de
Nemours
&
Co.,
Inc.
Equipment covered in this manual:
Valleylab Force 300 Electrosurgical Generator
110
-
120
V“
nominal,
220
-
240V~
nominal
(auto
selected)
Valleylab
Part
Number:
945
103007
|
Effective
Date:
November,
1995
Patents
Pending
Manufactured by:
Valleylab Inc
Pfizer Hospital Products Group
5920 Longbow Drive
Boulder, Colorado 80301 USA
For information call:
1-800-255-8522
/
1-303-530-2300
/
TWX
910-940-2514
Distributed in Europe by:
Valleylab Europe
Zaventem, BELGIUM
Distributed in Asia/Pacific by:
Valleylab Australia
Sydney, AUSTRALIA
CE
0086
Made in USA
Printed in USA
© 1995 Valleylab Inc All rights reserved.
225 120 100

low the Service Manual is Organized
The Force 300 Service Manual should contain the sections listed below.
If any section is missing, please contact Valleylab.
Description Part Number Page Count
Foreword 225 120 100 10
Table of Contents
Service Centers
1 Introduction 225 120 029 6
2 Controls, Indicators, and Receptacles 225 120 030 14
3 Technical Specifications 225 120 101 18
4 Principles of Operation 225 120 032 30
5 Setup, Tests, and Adjustments 225 120 102 32
6 Troubleshooting 225 120 103 30
7 Replacement Procedures 225 120 035 36
8 Repair Policy and Procedures 225 120 036 4
9 Service Parts 225 120 104 14
10
Board Drawings and Schematics 225 120 105 22
Warranty 225 120 070 2
onventions Used in this Guide
nportant
dicates an
erating tip or
aintenance
uggestion.
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.
225 120 100

Table of Contents
Service
CenterS
ee
ix
1 Introduction
General
Description
«conocemos,
1-2
List
Of
Component
...........ccccccesecsesessssssscssssesonscasssacesesessscssssenssscesse
1-2
Service
Personnel
Safety...
1-3
General
Precautions
re
1-3
Active
Accessories...
emen
13
Patient
Return
Electrodes
er
1-3
Fire/Explosion
HazardSs
..............
iii
1-4
Electric
Shock
Hazards
iene
1-4
SeTVicimg
iii
1-5
Calibration
eee
1-5
es
1-6
2 Controls, Indicators, and Receptacles
Front
Panel
.onoociciconroniosononinconos
„2-2
Bipolar
Control
2-3
Changing
the
Bipolar
Power
Setting
......................................
2-3
Monopolar
Cut
Controls
.
.2-4
Changing
the
Cut
Mode
and
Power
Setting..........................
2-4
Monopolar
Coag
ControlS
에
아아아
2-5
Changing
the
Coag
ModeandPowerSetting....................
2-5
Changing
the
Maximum
Voltage
for
the
Desiccate
Mode...2-6
Bipolar
Instrument
Receptacle
2-7
Monopolar
Πηδίγιπιοπί
Κεεθρίας]θ6........
οι.
eeeeeesenne.
2-8
Single-Pin
Monopolar
Receptacle
...........................................
2-8
Multipin
Monopolar
Receptacle.
2-8
Front
Panel
Footswitch
Receptacle
and
Button..........................
2-9
Using
the
Front
Panel
Footswitch
for
Bipolar
Output.........
2-9
Using
the
Front
Panel
Footswitch
for
Monopolar
Output
..2-9
Patient
ReturnElectrodeMonitoring.......................................
2-10
REM
Alarm
Indicator
sseneresererenne
2-10
RearPanel...........................
nine
2-11
Rear
Panel
Footswitch
Receptacles
ue
2-12
Bipolar
Footswitch
Receptacle….…....................
2-12
Monopolar
Footswitch
Receptacles
......................................
2-12
Footswitch
Activation
Diagram
iene
2-13
225 120 100

3 Technical Specifications
Performance CharacteristCS re rzici onice reni ioninioninne 3-1
General usines 3-1
DimensionsandWeight.............................. 3-1
Operating Parameters re eersereeeereaaeareeacararrranes 3-2
Transport and Storage... ss 3-2
Duty Cycle iii 3-2
Imternal Memory eeeeeeeé 3-3
Audio Volume ss 3-3
Activation Tone .pe 3-3
INC A 3-3
REMContactOualityMonitor.......................... 3-4
Acceptable Resistance Range........................ n 3-4
Low Frequency (50-60 Hz) Leakage Current......................... 3-4
High Freguency (RF) Leakage Current „er 3-4
InputPower.......... emer 3-5
Standards and IEC Classifications .......... ur srrrireriziiz iii ez ozene 3-6
Class I Equipment iii 3-6
Type CF Equipment... iii 3-6
DripProot......................... ere 3-6
Electromagneticinterference.............................. 3-7
ElectromagneticCompatibiliy.................... 3-7
Voltage Transients 5. 3-7
DefibrilHlator Proof iii 3-7
Output CharacterlsticS ни ионов иоииинонозионезиеиньнно 3-8
AvailablePowerSettingsinWatts................................... 3-8
Bipolar sus 3-8
Monopolar Cut: Pure ss 3-8
Monopolar Cut: Blend... essere 3-8
Monopolar Coag: Desiccate and Fulgurate....................... 3-8
Maximum Output for Force 300 Modes................................. 3-9
Output Waveforms .pp iii 3-10
Bipolar eee 3-10
MonopolarCut..................... neee 3-10
Monopolar Coag ss 3-10
Output Power vs. Resistance Graphs.….....................… 3-11
Bipolar CTraph ss 3-11
Monopolar Cut GraphS ии 3-12
MonopolarCoagGrapls.................. 3-13
Output Power vs. Generator Зе 185............. линии, 3-15
200V Desiccate @ 300 Ohms... 3-15
300V Desiccate 20300Ohms...................... enn 3-15
Fulgurate @ 500 Ohms iii 3-16
Blend@300 OhmS renerne 3-16
Bipolar 21000Ohm$..................... 3-17
Pure Cut @ 100 Ohms eee 3-17
225 120 100

4 Principles of Operation
Block
Diagram
iii
aso
4-2
Functional
OvVerVie
Wense
4-3
EffectMode.....................................
0...
4-3
The
REM
Contact
Quality
Monitoring
System
.....................
4-3
REM
Alarm
Activation
линии
4-4
Electrodes
Without
the
REM
Safety
Feature...................
44
Control
Board
nr
4-5
MicrocontrollerS…
in
4-5
Main
Microcontroller
iii
4-5
MainMicrocontroller
Memory..............................
4-6
Battery-BackedRAM......................................
4-6
FeedbackMicrocontroller.............................................
4-6
Feedback
Microcontroller
Memory..................................
4-6
Shared
RAM
.........
ecran
4-7
I/O
Expansion
eee
4-7
Keyboard
Interface
and
Activation
Inputs
............................
4-7
Power
Supply
Supervisor
Circuit...
4-7
A/DandD/AConversion...............................
um.
4-8
Waveform
Generaton
(T_ON
ASIC)
………………………………………
4-8
TONAverageCheck...............................................
4-9
Audio Alarm
men
4-9
Serial
interface
μμ”
4-9
Dosage
Error
Algorithm.................
4-10
Effect
Mode
Algorithm
..............
eia
4-11
High
Impedance
Effect
Mode
Operation
......................
4-11
Analog
to
Digital
Saturation
n
4-11
Display
Board
„4-12
Bipolar,
Cut,
and
Coag
Power
Setting
Encoders.................
4-12
RF
Indicator
Lamps.…..........................................
4-12
LED
and
Seven-Segment
Display
Drivers
...........................
4-13
Mode
Selection
Switches
er
4-14
REM
Switch
Circuit...
iii
4-14
FrontPanelFootswitehhCircuit........................
4-15
Footswitch
Board
rennes
4-16
Power
Supply/RF
Board
sn
4-17
Power
Supply
/RF
Board
Interfaces...............................
4-17
High
Voltage
Power
Supply
eee
4-18
Power
Entry
Circuit
iii
4-18
Auto
Mains
Switching
Circuitry
iii
4-18
AC/DC
Converter...
4-19
DC/DCSwitchingRegulator....................................
4-19
Low
Voltage
Power
Supply...
4-21
225 120 100

ΕΕ Output Stage... nen 4-22
Primary Sense Circuits... renere 4-22
RedundantSenseCircuits................................... 4-23
Output Relays ............ ii gene 4-23
Вро]аг Мосе............... terrace areais 4-23
Cut Modes ie 4-24
¡ATACA A 4-24
Spark Control Circuit ss esse 4-25
RF Leakage Sensing and Reduction Circuits 4-26
REM Circuit inner 4-26
REM Oscillator iii 4-26
IsoBloc Circuit iii 4-27
ОзсШаю............ nn 4-27
Power Supply... sun 4-27
Optoisolators een 4-27
Audiolircuit................... een 4-28
Footswitch Decode Circuit eee 4-29
Temperature Sense Circuit .pe 4-30
Thermal Sensing een 4-30
5 Setup, Tests, and Adjustments
Setting Up the Generator ....5-2
Periodic Safety Check 5-3
Inspecting the Generator and Accessories ............................. 54
Inspecting the Internal Components иене 5-6
Testing the Gemerator iii 5-7
Verifying REM Function.............. лилии иен 5-8
Confirming Outputs................... iii 5-9
Checking Leakage Current and Ground Resistance........... 5-12
Calibrating the Force 300 5-14
Preparing for Calibration iii 5-15
Entering Calibration Mode... 5-15
Exiting Calibration Mode een: 5-16
6 Troubleshooting
Inspecting the Generator... rss ovn 6-1
Correcting Malfunctions irene 6-2
Responding to System Alarms rien 6-11
Correcting IC U3 Malfunctions............ iii 6-23
Correcting IC U6 Malfunctions.…................................. 6-24
Correcting T_ON ASIC Malfunctions.….....................… 6-27
Correcting Battery-Backed RAM Malfunctions .................. 6-29
225 120 100

7 Replacement Procedures
IMmterconnectDiagram.......................0...
....7-2
Battery
Replacement
이
이
이
아
아
아
아 아 이
아
아
아
아 아 아 아 아
아
아 아 어 이
아
아 나 이 이 이 이 이 이
이
에
이니
7-3
Control
Board
Replacement..….….................
7-4
Display
Board
Replacement
ene
7-5
Display
Board
Seven-Segment
LED
Replacement....................
7-6
Footswitch
Board
Assembly
Replacement................................
7-7
Front
Panel
Replacement
7-8
Front
Panel
Footswitch
Receptacle
Replacement....................
7-10
Front
Panel
Knob
Replacement
.
7-11
Front
Panel
Power
Switch
Replacement
.....................
nn
7-12
Front
Panel
REM
Lever
Replacement.........................
errare
7-13
Fuse
Replacement
see
7-14
Replacing
Fuses
in
the
Fuse
Drawer.....................................
7-14
Replacing
the
Fuse
on
the
Low
Voltage
Power
Supply
.....7-15
Replacing
the
Fuse
on
the
Power
Supply
/RF
Board..........
7-17
Handle
Replacement
7-18
Left
Front
Heat
Sink and
Component
Replacement...............
7-19
Left
Rear
Heat
Sink
and
Component
Replacement
................
7-21
Right
Heat
Sink
and
Component
Replacement.......................
7-24
Low
VoltagePowerSupplyReplacement.................................
7-27
PowerEntryModuleReplacement...........................................
7-29
PowerSuppiy/RFBoardReplacement.......................................
7-31
8 Repair Policy and Procedure
Responsibility of the Manufacturer 0000000000. 8-1
Obtaining a Return Authorization Number............................... 8-2
Returning Circuit Boards... essseeseeer 8-2
Returning the Generator for Service... лишили 8-3
Clearimg the Generator eee nenene ené 8-3
Shipping the Generator... renee 8-3
225 120 100 vil

9 Service Parts
Ordering ReplacementParts...................- een 9-1
Force 300 Assembly . et 9-2
Force 300 Illustrated Parts (Drawing 1 of 2) eee 9-2
Force 300 Illustrated Parts (Drawing 2 of 2) ини 9-3
Force 300 Parts List... 9-4
Control Board Components sense 9-7
Footswitch Board Components 9-7
Power Supply/RF Board ComponentS иен 9-8
10 Board Drawings and Schematics
Control Board …10-3
Display Board …10-7
Footswitch Board 10-11
Power Supply/RE Board ns ολο 10-13
Warranty
225 120 100