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Rear Panel Functions

3-6

Force 2 Service Manual

Rear Panel Functions

On/Off Switch

– Press the toggle up to turn power on and down to shut

power off.

The Force 2 generator uses a universal type power entry module but is not
voltage selectable. Line fuse replacement is the following:

250V

110-120V generators (-2 PCH)

250V

6.3A

220-240V generators (-8 PCH)

Bipolar Footswitch Receptacle

– This three-pin receptacle accepts a single-

pedal bipolar footswitch connector.

Monopolar Footswitch Receptacle

– This four-pin receptacle accepts a two-

pedal monopolar footswitch connector.

Equipotential Lug

– You can connect this lug to earth ground with an

equipotential grounding cable.

Audio Volume Control

– When the generator activates, it produces cut, coag,

and bipolar mode indicator tones. You adjust the volume of the tones
with this control. The volume of the audio alarm is not adjustable.

Содержание Force 2-2 PCH

Страница 1: ...Service Manual Force 2 Electrosurgical Generator...

Страница 2: ...ice 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 945 103 106 1 of 2 Effective date October 2004 Force 2...

Страница 3: ...ution Indicates a hazardous situation which if not avoided may result in minor or moderate injury Notice Indicates hazard which may result in product damage ATTENTION Refer to the accompanying documen...

Страница 4: ...212181 Fax 39 02 2640059 Tyco Healthcare Spain S L C Fructuos Gelabert 6 8 planta 8a 08970 Saint Joan DESPI Barcelona SPAIN Ph 34 93 680 3370 Fax 34 93 680 2457 Tyco Healthcare Belgium B V Generaal D...

Страница 5: ...Grounding 2 3 Perform a System Check 2 3 Section 3 Description of Controls Indicators and Receptacles Controls 3 3 Indicators 3 4 Alarms 3 5 Receptacles 3 5 Rear Panel Functions 3 6 Section 4 Technic...

Страница 6: ...and RMOTE Indicators 5 3 RF Indicators 5 3 External Memory 5 4 Interface 5 5 Power Supply 5 6 RF Output 5 7 Section 6 Maintenance Procedures Routine Maintenance and Inspections 6 1 Cleaning Instructio...

Страница 7: ...and Other Subassemblies 7 2 Section 8 Service Parts List Ordering Replacement Parts 8 1 Monopolar Control Display Board 8 2 Bipolar Display Board 8 4 Interface Board 8 5 Power Supply RF Board 8 8 Hea...

Страница 8: ...d 6 11 Figure 6 4 Blend 3 300 Load Low Voltage Coag 300 Load 6 11 Figure 6 5 Coag 300 Load 6 12 Figure 6 6 1 Cut Bipolar 2 Blend 1 3 Blend 2 4 Blend 3 LV Coag 5 Coag 6 13 Figure 6 7 1 Cut Bipolar 2 Bl...

Страница 9: ...play board layout S 27 Schematic 25 Monopolar Control Display board page 1 of 13 S 28 Schematic 26 Monopolar Control Display board page 2 of 13 S 29 Schematic 27 Monopolar Control Display board page 3...

Страница 10: ...Notes x Force 2 Service Manual...

Страница 11: ...wiring or conductive surface while the generator is disassembled and energized Never wear a grounding strap when working on an energized generator Keep the handset electrode away from personnel Use t...

Страница 12: ...t boards by their nonconductive edges Use an antistatic container for transport of electrostatic sensitive components and circuit boards Electric Shock Hazard Special caution should be used when worki...

Страница 13: ...rator or when returning it for service If you have any questions concerning the contents contact Valleylab Customer Service at 1 800 255 8522 or your Valleylab representative Responsibility of the Man...

Страница 14: ...esigned to operate at 220 240 Vac nominal 50 60 Hz Check the Power Connector The Force 2 generator is supplied with a hospital grade power cord and a three prong power connector If using the generator...

Страница 15: ...low from the cabinet in the event of internal electrical failure Do not use extension cords or three prong or two prong electrical adapters Undesirable leakage currents are affected by the polarizatio...

Страница 16: ...Notes 2 4 Force 2 Service Manual...

Страница 17: ...Force 2 Service Manual 3 1 3Description of Controls Indicators and Receptacles This section describes the controls indicators and receptacles for accessories located on the front panel of the Force 2...

Страница 18: ...Front View Figure 3 2 PCH Generator Rear View MONOPOLAR FOOTSWITCH BIPOLAR FOOTSWITCH FOREIGN EQUIVALENTS AND U S PATENTS 4416276 4416277 4632109 4658819 4658820 4827927 WARNING RISK OF FIRE REPLACE F...

Страница 19: ...this button to select the bipolar output when using the monopolar footswitch Power Up Press this button to increase power in the selected mode A single press of the button increases the power setting...

Страница 20: ...s to show the selected cut mode Power Setting Display The digital power setting display is visible on the generator in the ready mode The displayed number indicates the nominal power in watts When you...

Страница 21: ...e Accessory This receptacle has two output receptacles It accepts three pin handswitching active accessories or standard one pin accessories which you can activate with the monopolar footswitch You ca...

Страница 22: ...enerators 8 PCH Bipolar Footswitch Receptacle This three pin receptacle accepts a single pedal bipolar footswitch connector Monopolar Footswitch Receptacle This four pin receptacle accepts a two pedal...

Страница 23: ...ns of Measurement Unless otherwise specified all measurements are specified at an ambient temperature of 21 C 70 F and 760 torr Operating Parameters Storage and Shipping Temperature Range 10 C 50 F to...

Страница 24: ...lend 3 510 kHz bursts of sinusoid at 25 duty cycle recurring at 31 kHz Coag 510 kHz damped sinusoidal bursts with a repetition frequency of 31 kHz Low Volt Coag 510 kHz bursts of sinusoid at 25 duty c...

Страница 25: ...tts whichever is greater Force 2 8 PCH Generator Between 170 and 270 volts input output power into nominal load will vary no more than 15 or 5 watts whichever is greater Maximum Operating Range 85 135...

Страница 26: ...lar RF leakage current 150 mA per IEC 601 2 2 Source current normal polarity intact chassis ground 10 A Source current normal polarity ground open 25 A Source current reverse polarity ground open 25 A...

Страница 27: ...lassification Type CF Equipment per IEC 601 1 The Force 2 generator provides a high degree of protection against electrical shock particularly regarding allowable leakage current and has a CF type iso...

Страница 28: ...put measurements are made using the setup referred to in IEC 601 2 2 Figure 104 Figure 4 1 PCH Generator Typical Output Power vs Load Monopolar Cut Modes Pure Cut Blend 1 Generator Power Setting Gener...

Страница 29: ...e 2 Service Manual 4 7 Figure 4 2 PCH Generator Typical Output Power vs Load Monopolar Cut Modes continued Blend 2 Blend 3 Generator Power Setting Generator Power Setting Output Power watts Impedance...

Страница 30: ...rvice Manual Figure 4 3 PCH Generator Typical Output Power vs Load Monopolar Coag Modes Coag Low Voltage Coag Generator Power Setting Generator Power Setting Output Power watts Impedance ohms Impedanc...

Страница 31: ...Manual 4 9 Bipolar measurements are made using bipolar forceps on the insulating surface referred to in IEC 601 2 2 Figure 104 Figure 4 4 PCH Generator Typical Output Power vs Load Bipolar Mode Bipola...

Страница 32: ...Notes 4 10 Force 2 Service Manual...

Страница 33: ...volume potentiometer and a full volume alarm sounds The Monopolar Control Display board contains this circuitry Monopolar Control Display The Monopolar Control Display board also known as the CPU boa...

Страница 34: ...erforms the major display functions of the Monopolar Control Display board The device is a universal eight digit LED driver system It contains all the circuitry necessary to interface a microcontrolle...

Страница 35: ...amplifier stage comprised of U5F and U5G A second analog switch when enabled increases the net capacitance of the audio oscillator timing elements thereby lowering the frequency A filter consisting o...

Страница 36: ...log converters DACs on the data bus U21 and U19 These are write only devices The U21 DAC generates the power supply control voltage ECON The U19 DAC generates the RF current limit analog voltage ICON...

Страница 37: ...vated A latch U18A sets when the generator is activated and resets when the activation ends The Q output of this latch goes to an interrupt input Port 33 of the microcontroller Resetting this latch aw...

Страница 38: ...lectrodes The third comparator provides a hard wired alarm limit at 20 ohms for single pad electrodes The fourth comparator generates a pulse width modulated waveform by comparing the return electrode...

Страница 39: ...a current limit circuit Gate drive is direct at a 12V level The drains have diodes in series to allow the output transformer primary voltage to swing negative in coag The cut waveform drive is at a 50...

Страница 40: ...the output resembles a constant voltage source Below 300 ohms load the current limit circuitry enforces a constant current characteristic All eight output FETs must be the same type The bipolar contro...

Страница 41: ...repairs Repair parts and information are available from Valleylab Refer to Section 8 Service Parts List for additional information Cleaning Instructions Clean the Force 2 generator using standard hosp...

Страница 42: ...akage currents accidental capacitive or inductive coupling may cause order of magnitude error in the observed values Perform the leakage current and ground resistance tests before returning the genera...

Страница 43: ...deband Current Transformer Dale NH250 1 Noninductive Load Resistors Line Frequency Leakage Current Test Load 1k ohm parallel 0 15 F 30 pF 20 6kV Ceramic Capacitor Power Up Self Test Plug the generator...

Страница 44: ...the 40 pin interconnect cable The meter should read 5 V 0 25 V 5 V Supply Connect the digital multimeter between pin 7 and pins 1 or 2 on the 40 pin interconnect cable The meter should read 4 75 V 0 2...

Страница 45: ...Calibration a Adjust R61 R62 R63 and R101 fully clockwise b Attach a 300 ohm load to the generator output c Set coag power setting display to 30 W activate and adjust R76 ECON for approximately 37 W 3...

Страница 46: ...counterclockwise Activate the generator and observe output reading Continue this inactivated activated calibration in 1 4 turn increments until the output is approximately 20 W 26 W 70 mA 80 mA Verify...

Страница 47: ...and coag Monopolar Accessory Active RF Leakage Connect the 200 ohm load and RMS voltmeter in series from accessory active to chassis ground and connect a 30 pF capacitor between PATIENT receptacle an...

Страница 48: ...generator To calculate the leakage current use the formula I E R where R 1k ohms and E is the voltage across the resistor The maximum acceptable voltage across the 1k ohm resistor for 10 A leakage is...

Страница 49: ...ttaching a meter to the right MICROBIPOLAR receptacle and attaching the 30 pF to the left MICROBIPOLAR receptacle No reading shall exceed 150 mA Use short leads Monopolar Procedure 1 Connect the 200 o...

Страница 50: ...Typical Output Waveforms 6 10 Force 2 Service Manual Typical Output Waveforms Figure 6 1 Pure Cut 300 Load Bipolar 100 Load Figure 6 2 Blend 1 300 Load...

Страница 51: ...Typical Output Waveforms Maintenance Procedures Force 2 Service Manual 6 11 Figure 6 3 Blend 2 300 Load Figure 6 4 Blend 3 300 Load Low Voltage Coag 300 Load...

Страница 52: ...Typical Output Waveforms 6 12 Force 2 Service Manual Figure 6 5 Coag 300 Load...

Страница 53: ...e 2 Service Manual 6 13 TT on Waveforms at TP12 on PSRF Board RF Drive Waveforms at TP7 10 on PSRF Board Figure 6 6 1 Cut Bipolar 2 Blend 1 3 Blend 2 4 Blend 3 LV Coag 5 Coag 1 2 3 4 5 Figure 6 7 1 Cu...

Страница 54: ...Clamp Waveform at TP11 on PSRF Board 6 14 Force 2 Service Manual Clamp Waveform at TP11 on PSRF Board Figure 6 8 Open Circuit 120W Coag...

Страница 55: ...ent having a weight in excess of 14 18 g 1 2 oz by means other than the leads 6 Properly insulate all component leads which are or could be forced into a shorting condition with another component lead...

Страница 56: ...Notes 6 16 Force 2 Service Manual...

Страница 57: ...r a Return Authorization Number or call your Valleylab representative for assistance Have the following information ready Hospital clinic name customer number Telephone number Department address City...

Страница 58: ...packing container with double wall construction Place a plastic bag over the generator Use nonabrasive packing material that will not damage the surface of the unit Use four crossed straps to secure t...

Страница 59: ...enerator Serial number located on the rear of the generator Valleylab part number All components must be replaced with parts of identical construction and value Replacement part ratings and tolerances...

Страница 60: ...5 1 4W 234 024 068 R14 33k 5 1 4W 234 024 099 R15 18 75 5 1 2W 234 014 086 R19 100 5 1 4W 234 024 039 R23 130k 5 1 4W 234 024 114 R20 29 49 4 7k 5 1 4W 234 024 079 R32 33 37 41 51 5 1 2W 234 014 083 R...

Страница 61: ...ammed 210 730 211 U5 27 2803A 210 800 002 U6 74LS165 210 520 165 U7 10 74LS85 210 520 085 U8 ICM7218 210 700 001 U11 24 MC14584B 210 212 106 U12 4068B 210 210 068 U13 30 4071B 210 210 071 U14 4011B 21...

Страница 62: ...022 D2 3 4 9 10 11 HDSP7501 239 750 119 D5 6 8 HLMP2755 239 750 033 D7 13 HLMP2855 239 750 039 D12 HLMP2655 239 750 042 Miscellaneous Y1 Oscillator 8 192 MHz 250 010 025 L1 2 EMI Ferrite Bead 251 100...

Страница 63: ...R73 11k 1 1 8W 234 201 389 R10 13 20 28 33 63 3 6k 5 1 4W 234 024 076 R42 48 52 820 5 1 4W 234 024 061 R60 62 2 4k 5 1 4W 234 024 072 R21 41 53 68 10k 5 1 4W 234 024 087 R40 3 3k 5 1 4W 234 024 075 R...

Страница 64: ...1 8W 234 201 284 R69 19 1k 1 1 8W 234 201 412 R70 33k 5 1 4W 234 024 099 Capacitors C58 61 0 22 F 10 250V 204 400 120 C16 17 59 0 0047 F 20 10kV 204 200 243 C60 0 0047 F 20 6kV 204 025 050 C2 5 10 11...

Страница 65: ...1B 210 210 011 U11 4066 210 200 022 U5 LM358AN 210 300 013 Transistors Q6 7 VN10KM 239 200 012 Q1 3 5 2N3904 239 015 000 Q2 2N2907A 239 100 012 Diodes CR1 3 5 8 11 13 15 1N4148 239 014 000 CR2 6 7 16...

Страница 66: ...43 120k 5 1 2W 234 014 124 R16 3 9 5 1 4W 234 024 005 R86 10 5 1 4W 234 024 015 R1 2 4 5 7 11 125 22 5 1 4W 234 024 023 R120 36 5 1 4W 234 024 028 R109 110 10 5 1 2W 234 014 068 R134 138 139 141 51 5...

Страница 67: ...3 115 128 132 143 144 10k 5 1 4W 234 024 087 R24 105 24k 5 1 4W 234 024 096 R18 30k 5 1 4W 234 024 098 R77 33k 5 1 4W 234 024 099 R106 43k 5 1 4W 234 024 102 R104 117 47k 5 1 4W 234 024 103 R85 82k 5...

Страница 68: ...36 39 43 45 47 50 51 58 61 66 71 77 80 82 84 1 F 20 50V 204 200 460 C7 16 17 37 38 44 52 53 55 57 62 65 1 F 20 50V 204 200 464 C54 59 033 F 10 100V 204 200 503 C60 47 pF 5 100V 204 200 533 C1 3 8 10 2...

Страница 69: ...F 5 500V 204 105 036 Integrated Circuits U8 LM306 210 016 002 U17 LM 324N 210 022 000 U10 12 14 18 4066 210 200 022 U13 4001B 210 210 001 U7 4011B 210 210 011 U9 15 LM339AN 210 300 015 U20 3526 210 30...

Страница 70: ...0 016 Miscellaneous F1 Force 2 2 PCH Fuse 6A 250V 215 005 039 F1 Force 2 8 PCH Fuse 6 3A 250V 215 100 041 K1 4 pole relay 230 007 002 RT1 Thermistor 5 6A 240 003 005 L2 Inductor 0 75 mH 251 100 107 L1...

Страница 71: ...on Valleylab Part Number CR21 24 MUR 8100E 239 850 033 R142 150 20W TO 220 234 400 251 Reference Designator Description Valleylab Part Number CR25 28 FET N Channel 500V 8A 239 200 022 R133 50 20W TO 2...

Страница 72: ...e Assembly 8 14 Force 2 Service Manual Generator Base Assembly 202 701 448 Reference Designator Description Valleylab Part Number REM Adapter 202 701 063 Monopolar Keyboard 207 500 147 Bipolar Keyboar...

Страница 73: ...tors One Year from date of shipment Mounting Fixtures all models One Year from date of shipment Footswitches all models One Year from date of shipment Patient Return Electrodes Shelf life only as stat...

Страница 74: ...solving disputes arising under or relating in any way to this warranty is the District Court for the County of Boulder State of Colorado Valleylab its dealers and representatives reserve the right to...

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