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Bovie AARON 2250 Service Manual Download Page 18

Symbols on the Front Panel

2-4

Aaron Medical

SYMBOLS

DESCRIPTION

Cut Controls

Cut Mode

Blend Mode

Coag Controls

Coagulation Mode

Fulguration Mode

Bipolar Controls

Bipolar Mode

Indicators

Split Return Electrode

Solid Return Electrode

Regulatory Symbology

Read instructions before use.

Defibrillator proof type CF equipment

RF Isolated – patient connections are isolated from earth at high frequency.

Power Switch and Handpiece Connectors 

Return Electrode Receptacle

Caution High Voltage

Cut Mode

Coag Mode

Monopolar Handpiece Receptacle

Bipolar Mode

Bipolar Handpiece Receptacle

Summary of Contents for AARON 2250

Page 1: ...i Service Guide Aaron 2250 SERVICE GUIDE...

Page 2: ...ment In the unlikely event that your generator fails within one year of purchase date Aaron Medical will warranty the product and effect factory repairs Please refer to Appendix A Warranty for what is...

Page 3: ...ase refer to the User s Guide for standard operating precautions APPLICABLE SAFETY STANDARDS CSA C22 2 NO 601 1 M90 UL 2601 1 UL IEC 60601 2 2 2001 09 Part 1 2 CENELEC EN 60601 1 Part 1 IEC 60601 2 2...

Page 4: ...ntrols 2 7 Indicators 2 8 Power Switch and Receptacles 2 9 Rear Panel 2 10 Symbols on the Rear Panel 2 10 Technical Specifications 3 1 Performance Characteristics 3 2 Input Power 3 2 Duty Cycle 3 2 Di...

Page 5: ...5 1 Inspecting the Generator and Accessories 5 2 Service Personnel Safety 5 2 Installation and Placement 5 3 Functional Operational Checks 5 3 Operating the Unit 5 3 Preparing for Monopolar Surgery 5...

Page 6: ...et at Minimum 3 6 Figure 3 3 Output power versus impedance for Blend mode set at Maximum 3 7 Figure 3 4 Output power vs impedance for Coagulation mode 3 7 Figure 3 5 Output power vs impedance for Fulg...

Page 7: ...l Converter Circuit B 18 Request Sense Hand Cut Circuit B 19 Request Sense Hand Coag Circuit B 20 Request Sense Foot Cut Circuit B 21 Request Sense Foot Coag Circuit B 22 Request Sense Foot Bipolar Ci...

Page 8: ...viii Aaron Medical...

Page 9: ...Unit Description Safety Precautions when Repairing the Generator CAUTIONS Read all warnings cautions and instructions provided with this generator before using Read the instructions warnings and caut...

Page 10: ...ls Indicators and Receptacles Cut and Blend Controls The Blend mode improves the rate of targeted tissue desiccation without increasing the power delivered by the generator Two levels of coagulation P...

Page 11: ...t or repair the generator General Warnings Cautions and Notices WARNINGS Use the generator only if the self test has been completed as described Otherwise inaccurate power outputs may result The instr...

Page 12: ...ctivate the generator until the forceps have made contact with the patient Product damage may occur Fire Explosion Hazards WARNINGS Explosion Hazard Do not install the generator in the presence of fla...

Page 13: ...These potentials 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 bu...

Page 14: ...1 6 Aaron Medical...

Page 15: ...2 1 Service Guide Aaron 2250 CONTROLS INDICATORS AND RECEPTACLES This section describes The Front Panel Controls and Indicators Overview The Rear Panel...

Page 16: ...FRONT PANEL Figure 2 1 Layout of controls indicators and receptacles on the front panel 2 2 Aaron Medical...

Page 17: ...er Presets The front panel overlay contains 10 membrane switches Function Switches sometimes called matrix switches There is a membrane switch dedicated to each operational mode These switches toggle...

Page 18: ...Split Return Electrode Solid Return Electrode Regulatory Symbology Read instructions before use Defibrillator proof type CF equipment RF Isolated patient connections are isolated from earth at high fr...

Page 19: ...or Toggles between Cut and Blend modes Blend Amount Indicator Indicates the amount of blend added in the Blend mode More bars illuminated indicates more blend divided into 10 steps Blend Amount Contro...

Page 20: ...e Coagulation or Fulguration Coag power output in increments of 1 to 10 watts Coag Activation Indicator Illuminates when Coag mode is activated Fulguration and Coagulation Mode Selector Toggles betwee...

Page 21: ...r Power Display watts Indicates the power set for the Bipolar mode Displays error code in the event of an error Bipolar Power Control Buttons Increases or decreases the Bipolar power output in increme...

Page 22: ...lectrode alarm condition Solid Return Electrode Indicator Illuminates when the system detects a solid return electrode Split Return Electrode Indicator Illuminates when the system detects a split retu...

Page 23: ...witching Receptacle Accepts cables or adapters equipped with standard Aaron 12 active plugs Connect footswitching accessories Bipolar Receptacle Accepts standard cables for bipolar handpieces Connect...

Page 24: ...ear Panel 2 10 Aaron Medical SYMBOLS DESCRIPTION Equipotential Ground Stud Non ionizing Radiation Volume Control Danger Explosion Risk If Used With Flammable Anesthetics Fuse Enclosed Relay Connector...

Page 25: ...TECHNICAL SPECIFICATIONS All specifications are nominal and subject to change without notice A specification referred to as typical is within 20 of a stated value at room temperature 25 C 77 F and a...

Page 26: ...e should be stored and used in a room temperature of approximately 770 F 250 C 3 2 Aaron Medical Ambient temperature range 34 to 65 C 29 to 149 F Relative humidity 0 to 75 non condensing Atmospheric p...

Page 27: ...justable 70 dB 5dB Frequency 2 kHz 1 2 seconds 1 kHz 1 2 seconds Duration 2 seconds Solid Trip resistance 0 to 5 3 Continuous measurement Once the system establishes the solid return electrode resista...

Page 28: ...does not wet electrical insulation or other components which when wet are likely to affect adversely the safety of the generator Electromagnetic Interference When other equipment is placed on or bene...

Page 29: ...e Aaron 2250 Mode Output Power Output Frequency Repetition Rate Vp p max Crest Factor Rated Load Cut 200 W 300 490 kHz 5 kHz N A 2500 V 1 6 20 Blend Max 200 W 300 490 kHz 5 kHz 30 kHz 5 kHz 3300 V 3 5...

Page 30: ...he curves that follow depict the changes for each mode at specific power settings Figure 3 1 Output power vs impedance for Cut mode Figure 3 2 Output power versus impedance for Blend mode set at Minim...

Page 31: ...Figure 3 3 Output power versus impedance for Blend mode set at Maximum Figure 3 4 Output power vs impedance for Coagulation mode 3 7 Service Guide Aaron 2250 Coagulation...

Page 32: ...Figure 3 5 Output power vs impedance for Fulguration mode Figure 3 6 Output power vs impedance for Bipolar mode 3 8 Aaron Medical Fulguration...

Page 33: ...ide Aaron 2250 Output Waveforms The following figures are the output waveforms as viewed on an oscilloscope Figure 3 7 Cut set to 200 W at no load open Figure 3 8 Cut set to 200 W actual power 200 W a...

Page 34: ...Figure 3 9 Blend minimum set to 200 W at no load open Figure 3 10 Blend minimum set to 200 W actual power 200 W at 300 ohm load 3 10 Aaron Medical...

Page 35: ...Figure 3 11 Blend maximum set to 200 W at no load open Figure 3 12 Blend maximum set to 200 W actual power 200 W at 300 ohm load 3 11 Service Guide Aaron 2250...

Page 36: ...Figure 3 13 Coagulation set to 120 W at no load open Figure 3 14 Coagulation set to 120 W actual power 120 W at 500 ohm load 3 12 Aaron Medical...

Page 37: ...Figure 3 15 Fulguration set to 80 W at no load open Figure 3 16 Fulguration set to 80 W actual power 80 W at 500 ohm load 3 13 Service Guide Aaron 2250...

Page 38: ...Figure 3 17 Bipolar set to 80 W at no load Figure 3 18 Bipolar set to 80 W actual power set to 200 W load 3 14 Aaron Medical...

Page 39: ...ervice Guide Aaron THEORY OF OPERATION This section contains the following information Block Diagram Functional Overview of Key Circuits Controls and Indicators Aaron 2250 Control Signal Inputs and Ou...

Page 40: ...ade up of a Colpitts Oscillator operating at approximately 50kHz and a level detection circuit In a non activation status the Colpitts Oscillator operates at its set operating frequency and presents a...

Page 41: ...nce or absence of the monopolar and bipolar footswitch The footswitch sensors circuits are made up of a Colpitts Oscillator operating at approximately 50 kHz and a level detection circuit In a non act...

Page 42: ...ply Circuit SMPS This circuit generates the high current voltage necessary to deliver the output power Auxiliary Relay The Auxiliary Relay Circuit is used to control the relay connection on the rear o...

Page 43: ...tch supplies the AC mains current to the generator AARON 2250 CONTROL SIGNAL INPUTS AND OUTPUTS The following table lists the important input and output signals From a troubleshooting standpoint the a...

Page 44: ...l from the cut monopolar hand sense circuit This signal is generated by a colpitts oscillator located on the display board and an isolation transformer located on the main board When an activation req...

Page 45: ...ors ENTER This is an input signal to the system logic to initialize the NEM calibration routine DISP_BIP_SEL_0 DISP_BIP_SEL_2 These are output signals from the system logic to control the bipolar disp...

Page 46: ...re wave for activating the alarm siren This signal is used by the audio circuit AUX_RLY This is an output signal from the system logic that controls the accessory relay on the back panel FULG_EN This...

Page 47: ..._0 This is an output signal from the system logic to the display circuit for controlling the LED s on the Blend bar BLEND_LED_SEL_1 This is an output signal from the system logic to the display circui...

Page 48: ...age sensor to the control logic Used to monitor the output voltage of the unit L_TRANS_1 This is an input signal from the impedance sensor to the control logic Used to monitor the output voltage of th...

Page 49: ...OPERATING THE AARON 2250 This section covers the following topics Inspecting the Generator and Accessories Service Personnel Safety Installation and Placement Functional operational Checks Operating...

Page 50: ...between the electrosurgical generator and other electronic equipment such as monitors An activated electrosurgical generator may cause interference with them Nonfunction of the generator may cause in...

Page 51: ...f space from the sides and top of the generator for cooling Normally the top sides and rear panel are warm when you use the generator continuously for extended periods of time 3 Plug the generator pow...

Page 52: ...ustment is preformed by pressing the up or down buttons next to the Cut display This selection should advance the power display numbers in 1 to 5 watt increments Verify that the Cut mode can be adjust...

Page 53: ...cator graph 3 Monopolar Coag select the mode of operation for coagulation Coagulation or Fulguration then select the coagulation power settings by pressing the up and down buttons next to the Coag pow...

Page 54: ...5 6 Aaron Medical...

Page 55: ...6 1 Service Guide Aaron 2250 MAINTAINING THE AARON 2250 This section covers the following topics Cleaning Periodic Inspection Fuse Replacement...

Page 56: ...lidated infection control procedure Do not allow fluids to enter the chassis Do not sterilize the generator PERIODIC INSPECTION Every six months visually inspect the Aaron 2250 for signs of wear or da...

Page 57: ...ower Cable Receptacle on the rear panel 3 Remove the six screws that secure the cover panel to the unit 4 Lift off the top cover panel 5 Remove the two fuses using a fuse pulling tool 6 Replace the fu...

Page 58: ...6 4 Aaron Medical...

Page 59: ...7 1 Service Guide Aaron 2250 TROUBLESHOOTING This section includes error code descriptions and actions to take to resolve them...

Page 60: ...e error condition Inspecting the Generator If the Aaron 2250 malfunctions check for obvious conditions that may have caused the problem 1 Check the generator for visible signs of physical damage 2 Ver...

Page 61: ...ck the Return Electrode receptacle on the front of the unit for a broken pin or an obstruction 12 Insert a return electrode cable into the return electrode receptacle Verify a secure fit If the return...

Page 62: ...imultaneous activation of the cut and coagulation modes The activation mode is first come first served This means that whichever mode is selected first will be the function the unit is activated to di...

Page 63: ...ion signal lost on main board Sensing circuit malfunction Replace the Footswitch connector assembly 1 Check connect loose cable 2 Replace the main board Replace the display board Continuous monitor in...

Page 64: ...oard malfunction Display board malfunction Relay board malfunction Disconnected or faulty handpiece Disconnected or faulty footswitch s Check the display for an error code Note the number and refer to...

Page 65: ...surgical site 2 Make sure the current path from the surgical site to the return electrode does not pass through the vicinity of the heart or the site where the pacemaker is implanted 3 Always monitor...

Page 66: ...ard malfunction Main board malfunction Relay board malfunction NEM alarm 1 Turn off the generator Check and correct all accessory connections 2 Turn on the generator 3 Replace the accessory if it cont...

Page 67: ...V Ground TP9 12 VDC TP10 LV Ground TP12 Relay Ground TP13 Ground TP14 VAUX_SMPS TP15 RF Drive 2 TP16 Turns Ratio T14 TP19 Ground TP20 Power Ground TP21 Ground TP22 Turns Ration T14 TP23 RF Drive 1 TP2...

Page 68: ...7 10 Aaron Medical...

Page 69: ...8 1 Service Guide Aaron 2250 REPAIR POLICY AND PROCEDURES Refer to this section for information on Responsibility of the Manufacturer Returning the Generator for Service...

Page 70: ...Hospital clinic name customer number Telephone number Department address city state and zip code Model number Serial number Description of the problem Type of repair to be done Step 2 Clean the Genera...

Page 71: ...ion discloses to Aaron Medical s satisfaction that the product is indeed defective This warranty does not apply to any product or part thereof which has been repaired or altered outside Aaron Medical...

Page 72: ...price for the goods sold by Aaron Medical to the customer There are no warranties which extend beyond the terms hereof Aaron Medical disclaims any liability hereunder or elsewhere in connection with t...

Page 73: ...B 1 Service Guide Aaron 2250 BOARD DRAWINGS SCHEMATICS ASSEMBLIES...

Page 74: ...10 088 001 Frame Side Support 10 087 001 Frame Lower Support 10 083 002 Upper Frame Support 10 084 003 Base Plate 05 039 005 Rubber Feet 0 78125 Outer Diameter 10 086 003 Outer Cover 10 087 002 Lower...

Page 75: ...Plug Assembly 25 046 003 5 Inch Ground Cable 1 4 Insulation 25 046 001 5 Inch Ground Cable 3 16 Connector 21 141 001 Power Harness IDS MISC P N Description 07 044 001 On Off Switch DPST Blk Snap Moun...

Page 76: ...PCB ITEM 5 JP2 DISPLAY PCB ITEM 6 CABLE ITEM 42 JP3 MAIN PCB ITEM 5 JP10 DISPLAY PCB ITEM 6 JP11 MAIN PCB ITEM 5 JP9 DISPLAY PCB ITEM 6 CABLE ITEM 43 JP4 MAIN PCB ITEM 5 JP23 DISPLAY PCB ITEM 6 CABLE...

Page 77: ...Main Board Schematic Block Diagram B 5 Service Guide Aaron 2250...

Page 78: ...Power Factor Circuit B 6 Bovie Medical...

Page 79: ...Power Supply Circuit B 7 Service Guide Aaron 2250...

Page 80: ...SMPS Circuit B 8 Bovie Medical...

Page 81: ...Power Generator Circuit B 9 Service Guide Aaron 2250...

Page 82: ...High Voltage Relays Circuit B 10 Bovie Medical...

Page 83: ...Current Voltage Sensors Circuit B 11 Service Guide Aaron 2250...

Page 84: ...Current Voltage Sensors Backup Circuit B 12 Bovie Medical...

Page 85: ...Audio Amplifier Circuit B 13 Service Guide Aaron 2250...

Page 86: ...Display Block Diagram B 14 Bovie Medical...

Page 87: ...System Logic Circuit B 15 Service Guide Aaron 2250...

Page 88: ...Display Control Circuit B 16 Bovie Medical...

Page 89: ...Neutral Electrode Monitoring Circuit B 17 Service Guide Aaron 2250...

Page 90: ...Analog to Digital Converter Circuit B 18 Bovie Medical...

Page 91: ...Request Sense Hand Cut Circuit B 19 Service Guide Aaron 2250...

Page 92: ...Request Sense Hand Coag Circuit B 20 Bovie Medical...

Page 93: ...Request Sense Foot Cut Circuit B 21 Service Guide Aaron 2250...

Page 94: ...Request Sense Foot Coag Circuit B 22 Bovie Medical...

Page 95: ...Request Sense Foot Bipolar Circuit B 23 Service Guide Aaron 2250...

Page 96: ...Foot Monopolar Contact Circuit B 24 Bovie Medical...

Page 97: ...Foot Bipolar Contact Circuit B 25 Service Guide Aaron 2250...

Page 98: ...Silkscreen for Main PCB for Component Locations B 26 Bovie Medical...

Page 99: ...Silkscreen for Top of Display PCB for Component Locations B 27 Service Guide Aaron 2250...

Page 100: ...Silkscreen for Bottom of Display PCB for Component Locations B 28 Bovie Medical...

Page 101: ...Silkscreen for Relay PCB for Component Locations B 29 Service Guide Aaron 2250...

Page 102: ...Final Assembly Overview B 30 Bovie Medical...

Page 103: ...Cabling in Assembly Refer to page B 4 for list of cables B 31 Service Guide Aaron 2250...

Page 104: ...Mechanical Front Panel Assembly B 32 Bovie Medical...

Page 105: ...Mechanical Back Panel Assembly B 33 Service Guide Aaron 2250...

Page 106: ...Cabling Back Panel Assembly B 34 Bovie Medical...

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