GE AMX-II, Service Manual

Page 1: ...GE Medical Systems Technical Publications Service Manual SM A0654E Revision 3 1684 AMX IT X Ray Unit Product Operating Documentation...

Page 2: ...tions regarding claim procedure are found in section of the Policy Proce dure Bulletins If shipment was handled by moving van service uncrated call Traffic Milwaukee immediately when any damage is fou...

Page 3: ...LE OF CONTENTS CHAPTER 1 es OPERATING INSTRUCTIONS OM A0654E CHAPTER2 DOES NOT APPLY CHAPTER 3 INSTALLATION CHAPTER 4 ADJUSTMENT AND CALIBRATION CHAPTER5 FUNCTIONAL CHECK CHAPTER 6 THEORY AND SERVICE...

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Page 5: ...GE Medical Systems Technical Publications OPERATING MANUAL OM A0654E 3 1684 X Ray Unit Product Operating Documentation...

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Page 7: ...y expos ing themselves or others to radiation it is important that everyone hav ing anything to do with x radia tion be properly trained and fuily acquainted with the recommen dations of the National...

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Page 9: ...I X RAY UNIT 3 1684 OM A0654E VERTICAL COLUMN X RAY TUBE UNIT HV CABLES SENTRY COLLIMATOR TELESCOPING ARM X RAY CONTROL ACCESS COVER CASSETTE TRAY SAFETY BUMPER 23561 P 10 AMX II X RAY WITH TUBE UNIT...

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Page 11: ...before attempting to operate the AMX il X Ray Unit COMPONENT MODEL NUMBERS NAMEPLATE LOCATIONS Basic Unit Control Mobile Base Support Column 115V 50 60 Hz 46 165600G 10 G12 G14 Beneath exposure contro...

Page 12: ...nearby beds e Ask visitors to step outside the room during an exposure e Use gonadal shields for patients whenever possible EXPOSURE PROFILE Illustration 1 1A shows the iso exposure profile of the AMX...

Page 13: ...g Unauthorized persons should not remove the cassette tray shown in Illustration 1 1 The cassette tray should not be removed except by or in the presence of a person thoroughly familiar with safe nick...

Page 14: ...internal battery from any 115v or 230v 50 60 Hz power outlet receptacle The unit may not be driven or an x ray exposure cannot be made when the battery charger plug is in a power outlet receptacle Th...

Page 15: ...he KEY SWITCH at ON The Remote Exposure Contro Handswitch Illustration 1 3 has ROTOR and X RAY buttons Provided that the red UNIT ON fight is glowing depressing the rotor button will cause x ray tube...

Page 16: ...there will be a sustained tone WARNING If either the X RAY lamp glow or the tone signal continues longer than 3 seconds under any circumstances immediately release handswitch ROTOR and X RAY buttons...

Page 17: ...ioned The TELESCOPING ARM LOCK located beneath the middle section will secure the telescoping arm in any position The YOKE ROTATION LOCK allows the tube to be rotated 180 about the horizontal axis and...

Page 18: ...ined Dial numbers on the Calibrated Scale Drum Illustration 1 5 are for 40 48 60 and 72 inch source to image distances and standard film sizes of 5 through 17 inches 13 cm through 43 cm To select the...

Page 19: ...asurements have the tape tab on the end of the tape straight down not perpendicular to the tape Parallel tracks on the bottom of the collimator housing accept an optional extension cylinder Slide the...

Page 20: ...ol to increase speed 11 Steer the unit with the Brake Handle 12 To aid in climbing ramps or moving the unit onto thick carpeting press the Drive Assist Button with the left thumb while keeping the Bra...

Page 21: ...ndition Meter between exposures If the meter reads in the red region after one minute rest the batteries must be recharged as described below Turn the X RAY Generator Standby switch to OFF when comple...

Page 22: ...arger connected without damage to the equipment 5 To disconnect the charger turn the Standby Switch and the Main Power Circuit Breaker to OFF Remove the plug from the power outlet Pull the extension c...

Page 23: ...e Motor Drive Ratings The AMX 11 may be driven at speeds up to a maximum of 180 feet per minute 54 9 meter per minute on a smooth hard surfaced level floor Attainable speed will be reduced by inclines...

Page 24: ...given machine Represents the range of possible variation between exposures at fixed technic for any given machine KVP 50 KVP to 110 KVP 10 KVP 7 5 KVP 7 of dial reading after first 20 milliseconds of...

Page 25: ...e Manual SM A0654E MAS can be measured directly with a DC MAS Meter Fluke 8000A W MAS option or equivalent inserted into the tube current line as described in Chapter 4 of Service Manual SM A0654E Tub...

Page 26: ...is limited to more than 30 centimeters by the tracks on the bottom of the collimator for mounting the accessory Extension Cylinder Full 17 x 17 43 m x 43 m radiographic coverage at a 40 1 02 m source...

Page 27: ...ipment contains operating safeguards to provide maximum safety Before call ing for service be certain proper operating procedures are being used This equipment should be cleaned frequently particularl...

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Page 29: ...TECHNIC SELECTED MAS KVP PRIMARY VOLTS MA KVP TIME Sec...

Page 30: ...cal Systems GE Medical Systems Telex 3797371 P O Box 414 Milwaukee Wisconsin 53201 USA Asia Pacific Latin America North Amencaj GE Medical Systems Europe Telex 261794 Shortlands Hammersmith London WE...

Page 31: ...ntroduction ue 3 1 1 2 Compatibility Requirements for HEW Certification 3 1 1 3 Safety Precautions 3 1 1 4 Tools and Materials 3 2 1 5 Delivery Data 3 3 2 INSTALL TUBE SUPPORT ASSEMBLY a m 3 3A 2 1 In...

Page 32: ...COLLIMATOR HV CABLES HANDLE de 7777 X RAY CONTROL FRONT PANEL CABINET HOUSING HV TRANSFORMER AND BATTERY 23562 P10 ILLUSTRATION 3 1 COMPONENT NAMEPLATE LOCATION AMX I X Ray Unit Beneath the Handswitch...

Page 33: ...model number components Name plates for these components include the statement this product conforms to all applicable standards under 21CFR Sub Chap J A Basic Unit 46 165600G 10 G11 G12 G14 G15 H V...

Page 34: ...y compartment A hazardous situation will not develop where the outflow from this compartment is into a large or a well ventilated small room 6 An audible tone and or red x ray light indicated presence...

Page 35: ...signs 0 5K 2 w potentiometer wired as variabie resistor Torque wrench 0 4 ft b or 0 50 in Ilb with 9 64 hex drive Snap on Tools Model TSQ 4 torque wrench with TMA 4 1 2 9 64 hex drive or equivalent T...

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Page 37: ...ole in the bottom of the support plate and the column rotates freely 1809 each side of center Install six 5 16 18 unc x 3 4 hex socket cap screws in the bearing retainer ring at the base of the column...

Page 38: ...TTON 5 16 x 18 SPRING TENS ION ADJUST 18698 P10 ILLUSTRATION 3 2 3 A second man must place the bracket over the top of the arm and fasten but do not tighten with three 5 16 18 unc x 1 2 hex soc hd scr...

Page 39: ...ter two or three movements of the carriage CABLE GUIDE 23570 P 10 ILLUSTRATION 3 2A Continue to check on the cable until the x ray tube unit is mounted and the counterbalance system is properly adjust...

Page 40: ...ighten the lower screws c Tighten the upper screw of the left half d o If there is excessive drag as the tube unit is rotated install another spacer washer e Install the lock knob at the upper joint o...

Page 41: ...vertical carriage until the x ray tube unit port is about 4 feet 1 2 m from the floor 5 Locate the four HV cable clamps See Illustration 3 4 Sd i 18700 P10 ILLUSTRATION 3 4 6 Install the HV cable plug...

Page 42: ...ps as shown in Illustration 3 5 18701P10 ILLUSTRATION 3 5 11 Secure each clamp with two 6 32 unc x 1 screws 12 Lay the protected ends of the HV cables on the mobile base until the HV Transformer is in...

Page 43: ...athode HV cable Use rubber straps to fasten the stator and collimator cable to the HV cable and hold it in the properly draped position 8 Leave enough excess collimator cable to make connection to the...

Page 44: ...T HV TRANSFORMER TERMINAL COVER i BATTERY RETAINER MYLAR Pace 9 _ GR6539 ILLUSTRATION 3 8 2 Remove the HV transformer oil filler cap shown in Illustration 3 9 3 Insert point of punch into holes in cap...

Page 45: ...on 3 8 9 Locate the HV transformer terminal cover and a plastic bag containing four 3 76 2 mm long spacer studs Install the spacers on the four screws protruding out of the HV transformer Connect the...

Page 46: ...long the main harness to the other side of the HV Transformer Pull the cable through to take up the slack Remove rear cover and remove screws holding x ray con trol cover and remove cover 3 Route the...

Page 47: ...d Collimator End Lead Color Lead Mark Terminal No 4P2 Black 14 8TS1 14 C White 13 8TS1 13 A Red 5 8TS1 5 K Blue 6 8TS1 6 H Green 13 8751 13 A Additional leads Orange 14 8TS1 14 C added to 6 con ductor...

Page 48: ...th Inspect for correct spread of pin ends Remove excess solder if any on the pins that would prevent full insertion into the receptacles c Place the tapered rubber gasket over the HV terminal and agai...

Page 49: ...logs F3560 3 Unpack the three 30 cell groups that comprise the battery and place them on the floor The battery does not have a charge However a DC meter placed across the input and output terminals of...

Page 50: ...UNIT GENERAL ELECTRIC MEDICAL SYSTEMS SM A0654E 7 1576 PROTECTIVE BARRIER VENT CAP LINK 21288 D10 ILLUSTRATION 3 13 VENT CAP ASSEMBLY INTERCONNECTING LINK 30 CELL BATTERY PACK mm 12291 P 10 ILLUSTRATI...

Page 51: ...nents inside the cabinet User charging in the working range does not generate as much heat and the cabinet is to remain closed Connect a digital voltmeter across the battery plus to minus terminals Th...

Page 52: ...UED TIME FROM STEP 10 VOLTAGE END OF INTERVAL AMP HOURS AMP HOURS _ 6 27 12 07 0 0 117 4 _ 2 5 12 37 0 5 122 1 2 1 1 05 1 05 13 07 1 0 122 6 2 5 1 25 2 30 13 37 1 5 123 0 2 4 1 2 3 50 14 07 2 0 123 4...

Page 53: ...recording on 1 2 hour intervals until a battery voltage of 131 to 132 is realized When battery voltage reaches 131 to 132 V slowly adjust 441R30 clockwise until the charger stops and the charge compl...

Page 54: ...then remove lamp load Allow the battery to discharge for a total of 16 hours with each cell shorted Remove the faulty cell group from the battery and replace with a new cell group repeat the initial...

Page 55: ...ection Every 3 Years 5 Extension Arm Lubrication Every Year 6 Brake Chain and Linkage Lubrication Every 3 Years 7 Battery Servicing Every 6 Months 8 Equ lization Cycle Every Year 9 Sentry Collimator L...

Page 56: ...Battery or Line Current Overtoad Every 6 Months 12 Low Filament Voltage Check Every 6 Months 13 Three Second Back up Every 6 Months 14 Indicating Lights Every 6 Months 15 Extension Arm Assembly Every6...

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Page 58: ...6 2 before proceeding with this check 2 Use the furnished wrench to remove the caps Turn each cap 1 4 turn counterclockwise only then lift it out 3 Using a bright light flash light with non metallic...

Page 59: ...her 30 cell group into the left side of the battery compartment Before pushing it all the way in install the protective barriers then connect the lead on the side of the main power circuit breaker tha...

Page 60: ...2 6 Check High Voltage Transformer Primary and Battery Voltage nderlLoad 2 7 Motor Drive Speed Control Check and Adjustment 3 INSTALL SENTRY COLLIMATOR 3 1 Prepare Collimator Required only for collim...

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Page 62: ...on Mobile Unit replacement of Collimator X Ray Test 6 Chapter 4 Audibie tone required On installation and pre F 3382 Control Sec 2 6 for x ray exposure ventive maintenance calls Chapter 5 Sec 5 1 Tub...

Page 63: ...moved first With x ray control cover removed extreme safety should be excersized to prevent the possibility of electrical shock 21 Adjust Battery Condition Meter 5M1 If battery was recently charged th...

Page 64: ...l O to 150 ma DC milliammeter 1 2 accuracy with plus lead in the MA end and the minus lead in the MA 3 Connect the 7TB1 P1 and 7TB1 P2 leads at the HV transformer 4 Turn the x ray tube port up and cov...

Page 65: ...ulator adjusted correctly Lower Trace Filament voltage too low and ma regulator pulling up cr filament voltage normal but regulator pulling up improperly 18775 P10 ILLUSTRATION 4 1 2 5 Test the Timer...

Page 66: ...eter to read HV transformer primary voltages because of the dif ferences in response of the various meters to the square wave voltages and because of poor damping which results in needle oscillation d...

Page 67: ...s G 60 kvp 8 mas PROBE 2TB1 P1L GND 2TB1 P2L H 10 ms div V 5v div x 10 Probe TRIG INT DC Set Point ILLUSTRATION 4 4 Motor Drive Speed Control Check and Adjustment Check that the battery voltage is in...

Page 68: ...ull Speed FWD 8A1R15 76 5 54 2 Do not exceed 80 vdc average under any conditions 8 W voltage and RPM values of Table 1 do not agree remove the voltmeter and take the unit off the wooden block Connect...

Page 69: ...e Allen wrench furnished 46 165137P1 Lift off carefully to avoid hitting the projecting lead fingers 2 Remove the nuts holding the finger guard in place Discard the nuts finger guard and adapter plate...

Page 70: ...l X RAY UNIT 1 981 SM A0654E A Indicates Change FINGER GUARD INTERFACE PLATE 21049 P10 ILLUSTRATION 4 5 FRONT OF COLLIMATOR A 3 10 24 unc x 3 4 SOC HMS 9 64 T HANDLE ALLEN WRENCH FURNISHED 21371 D11 A...

Page 71: ...EAD GLASS MINIMUM LEAD CONTENT 2 3MM LEAD EQUIVALENT AT 150 KVP ALREADY MOUNTED AT THE BOTTOM OF THE FIXTURE MAKES IT SAFE TO LOOK INTO THE FIXTURE WITH THE NAKED EYE HOWEVER AS WITH ANY X RAY EXPOSUR...

Page 72: ...T 7 1576 SM A0654E 0 TUBE UNIT MOUNTING SURFACE INTERFACE PLATE 4 9 16 A F HEX ECCENTRICS with 4 10 32 unf x 1 2 HEX HD SCREWS MOUNTING 1 DIRECTLY COMPATIBLE WITH HRT 09N 16062 D11 ILLUSTRATION 4 7 M...

Page 73: ...locked positively at 09 15 30 45 and 90 from the front position by detents 7 Check that the measuring tape in the bottom of the collimator housing extends smoothly and freely 8 Install connector hous...

Page 74: ...RAY UNIT 7 1576 SM AO654E SCREWS TO REMOVE SCALE BRACKET 18728 P10 NOTE Trim Cover And Frame Removed For Clarity ILLUSTRATION 4 9 SCREWS TO REMOVE TIMER SWITCH ASSEMBLY NOTE Trim Cover Removed For Cl...

Page 75: ...ew Check for free rotation and proper index of the scale drum 17 Replace the dial assembly nameplate and knobs 4 2 Time Interval Adjustment The field light timer is for 15 to 20 seconds the user desir...

Page 76: ...imer button for desired timing 3 Replace nameplate and knobs SEC 5 COLLIMATOR CHECKS AND ADJUSTMENTS General The collimator blade and shutter assemblies were factory aligned Realignment in the field i...

Page 77: ...SING MAY BE HOT 5 Slightly loosen the two socket head screws on the bottom of the light housing 6 Slide the entire Bucky light lens assembly until the proper position is obtained 7 Re tighten the scre...

Page 78: ...inish Fully close the transverse set of blades With this set of blades full closed the lead finger spacing measured at the top edge should be between 5 32 3 96 mm and 3 16 4 76 mm and centered If the...

Page 79: ...onnected to the Blue Tap A shift to an adjacent 8T1 tap will change lamp voltage by approximately 0 5 v rms If necessary select the lowest voltage tap of 871 that provides at least the minimum voltage...

Page 80: ...e and attach RAT to collimator using RAT holding fixture e Use Collimator Lamp note and record where edges of light field appear on RAT grid pattern 4 4 af Exposure and develop film recommend 4 MAS at...

Page 81: ...and repeat the alignment procedure 5 If the indicated versus actual field size does not fail within specifications adjust the appropriate pointer or pointers as follows a Remove the blade contro knob...

Page 82: ...exposure and measure radiation total R for integrating meters with no added filters This represents 100 transmission level Record readings and terminate exposure Place standard absorber 46 173632G1 in...

Page 83: ...Check that there is no jumper between 4A1 7 and 4A1 8 If a jumper is present remove it Complete battery service log forms F3560 and piace in holder on back of cassette drawer Install the cover over t...

Page 84: ...l exposure indicators Give the two x ray control panel door keys and the six stand by on off switch keys to the customer Advise that the former should be given only to a qualified serviceman and the l...

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Page 86: ...ING ARM ASSEMBLED TO THE VERTICAL COLUMN TABLE OF CONTENTS SECTION TITLE PAGE 1 PRE NSTALLATION s n 1 1 1 Introduction tee eee t eee 1 1 2 Product Identification 1 1 3 Safety Precautions 2 1 4 Deliver...

Page 87: ...14 COLLIMATOR FUNCTIONAL CHECKS AND ADJUSTMENTS 33 14 1 Cross Hair Position Check and Adjustment 33 14 2 Extension Cylinder Optional Accessory Alignment Check 34 14 3 Large Field Size Check 35 14 4 F...

Page 88: ...Pulse Board Board 4A1 Battery Charger Board Board 4 Battery Charger Panel 5 Operator Panel Panel 6 Major Assembly Panel 7 HV Transformer Panel 8 interconnect Board 8A1 Motor Drive Board Panel 8A2 Ori...

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Page 90: ...quirements regarding beam quality exposure MAS minimum filtration beam collimation and source to skin distance the sensitive componeonts making up the AMX are identified with the nameplate statement t...

Page 91: ...thermore the serviceman should not leave the x ray unit unattended with the battery compartment cover and the cassette tray removed unless adequate warning signs and safety measures to limit access to...

Page 92: ...NOT CUT THE STRAP OR RELEASE THE VERTICAL LOCK UNTIL INSTRUCTED TO DO SO IN THE INSTAL LATION PROCEDURE THE VERTICAL COLUMN HAS BEEN COUNTERBALANCED FOR WEIGHT OF TUBE UNIT AND COLLIMATOR WHICH HAVE B...

Page 93: ...ack for AMX li consisting of 3 46 152812P1 Cell group Model 43B011TB01 Extension Cylinder Optional accessory to AMX I1 The installation procedure is written on the basis that the battery pack for this...

Page 94: ...X10 probes A Tektronix type 422 scope is satisfactory where troubleshooting is not required 1 gallon 3 8 litres Diala AX transformer oil for H V Transformer or H V Divider Can of 75 25 cleaning solven...

Page 95: ...30 mas 27 mas 2 21 32 mas 28 mas 2 5 to4 14 39 mas 30 mas 5 to 8 8 40 mas 32 mas 10 7 40 mas 32 mas 12t0 300 7 to 10 KVP Accuracy KVP 50to 110 10 KVP 7 5 KVP 7 of dial reading after first 20 millisec...

Page 96: ...1 or 46 194759G1 Collimator Set of cards for each of the following components 46 165600G1 AMX H Basic 46 155750G3 Tube Housing 46 125686G6 Tube Insert 46 150625G1 H V Transformer 46 177399G1 Sentry Co...

Page 97: ...e of delivery If damage is apparent have notation of bad order placed by the delivering driver on all copies of the freight or express bill If damage is of a concealed nature notify transportation age...

Page 98: ...after the Tube Unit is mounted to the trunnion fork 3 Check the Tube Unit for an oil leak or a broken insert Look for tell tale oil slick on the housing indicating an oil leak In the event an oil slic...

Page 99: ...roups at this time From a safety standpoint they should be unpacked only when ready for installation in the unit 5 Save all packing materials until the installation is completed and all parts accounte...

Page 100: ...ach of the three screws NOTE 2 Check that the trunnion contact surfaces of the fork and Tube Unit are smooth and free of paint A 3 Apply a light coat of Waymat oil to the inside surfaces of the lower...

Page 101: ...both 8 32 unc screws and if required to the 3 3 8 9 53mm WASHERS 1 4 20 unc screw on the left trunnion If trun 21984011 nion is too loose with the rotation lock tightened LEFT FORK remove spacer wash...

Page 102: ...inal strip to match the black green and white stator leads Place the red and blue leads on unused terminals Tighten the cabie clamp and reinstall the rear trim cover on the Tube Unit 12 Rotate the Tub...

Page 103: ...that it is approximately 3 ft 0 9 m off the floor Relock the arm tightly 21987 P10 7 Release the Telescoping Arm Lock and press the arm interlock button to extend the Telescoping Arm Pull out and dis...

Page 104: ...reinstal lation NOTE Do not lose the spacers on each pivot shaft 2 21989 D12 5 Remove 3 7 16 HHCS on top skirt of kick panel and 2 7 16 HHCS one at each support for the rear casters Remove the kick pa...

Page 105: ...llow caps with the red spray caps furnished in a bag with the battery The red caps have three small holes for venting Yel low caps are for shipping only 3 Check that the Main Power Circuit Breaker on...

Page 106: ...1 4 220 mm x 413 mm red insulator 220mm x 413mm boards furnished between the right and center RED INSULATOR BOARDS and two others between the left and center cell groups These are to prevent the batt...

Page 107: ...nd to reset the oil level Otherwise proceed to Step 2 COVER CAP CORK GASKET DISCARD 2 Remove the terminal cover over the H V Transformer primary leads It is mounted with 4 No 10 32 unc x 1 2 B H M S S...

Page 108: ...and charged val OFF i e Remove x ray control cover Leave cover aus off for remainder of tests 60400 3781 28 4AiR9 470 instrumentation 4 a Connect 0 5K 2 watt potentiometer in A series with Gray lead...

Page 109: ...h the x ray window 3 Again depress the handswitch Rotor Button while 2 21994910 looking into the x ray tube window The x ray tube anode shou d accelerate to a stable speed ILLUSTRATION 4 11 19 within...

Page 110: ...lights check functioning of 3A2V5 Schematic Reference 24 F 8 Turn circuit breaker and keyed switch OFF Reconnect Stator lead to 3TB1 39 9 Record on F3316 Functional Check No 1 and No 2 NOTE Leave the...

Page 111: ...165137P1 2 Rotate the tube unit and collimator for port down x ray beam and raise the horizontal telescoping arm for a suitable working height 9 2 Connect Collimator Cable 1 Unscrew and push the Rota...

Page 112: ...N RIGHT HAND SIDE collimator and locks securely in place a 2 If installation requires metric field size scale TT perform the scale label modification of Chapter CALIBRATED 4 Part I Section 4 1 SCALE D...

Page 113: ...balance t is prop erly adjusted when it requires the same force about 5 to 13 lbs 2 3 to 5 9 kg to move the arm up or down The Tel escoping Arm should balance at any point except the top most 2 50 8 m...

Page 114: ...nished in Bag No 1 If adjustment is required raise the vertical car riage to the top of its travel and securely lock the carriage Loosen the two 5 16 x 18 unc nuts at the back of the carriage Have an...

Page 115: ...cable recepticals of the H V Divider and silicone insulating compound G635 at the tube X10 PROBES i unit Apply silicone compound per Direction EDS NDE Ol Hi 13871A Follow standard procedures for insta...

Page 116: ...ve the jumper with banana plugs from MA and MA terminals of panel 3 Connect 0 150 DCMA Meter 1 29 accuracy to MA and MA Meter filament transformer primary voltage Connect 0 150 VAC iron vane meter acr...

Page 117: ...d adjustment battery must be at full charge With power off locate leads at main power circuit breaker 6CB1 B heavy lead Remove leads from 6CB1 B and connect a 10 ohm 100 Watt adjustabie resistor and s...

Page 118: ...or Int DC T meter from Section 11 or Y NOTE Deep discharge pulses as shown above appear on scopes with faster writing rates 12 1 Timer Check And Adjustment Older scopes wil appear as in Ill 4 11 34 1...

Page 119: ...ke an exposure at 80 KVP 200 MAS and note battery voltage drop between standby stator load and x ray load 3 Voltage drop from standby to stator load should be from 1 to 1 5 volts and from standby to x...

Page 120: ...eaker and keyed switch ON Measure battery voltage Battery voltage will depend on state of charge For this test it must be between 110 and 120 voits 4 4 Make an x ray exposure at 80 KVP 4 MAS Measure K...

Page 121: ...may be required to compensate for re moval of H V Divider and 5 foot cables 9 Turn keyed switch and circuit breaker OFF Remove the tube current test meters and reinstall the MA to MA jumper Do not dis...

Page 122: ...tton on the collimator Field Light should energize and remain on for 15 to 20 seconds unless modified per Chapter 4 Part Section 3 2 Light pattern should be of uniform brightness no shadows or blotche...

Page 123: ...n the cassette should show ecual sectors of light on either side of the cross hair shadows 3 If adjustment is necessary proceed as follows a Loosen the eight cone track screws b Shift and or shim the...

Page 124: ...age Check To meet HEW requirements the voltage at the collimator lamp socket must be at least 19 6 VAC RMS at a minimum battery voltage of 110 VDC This is an indirect test of illumination level NOTE B...

Page 125: ...00 VAC 110 19 0 21 0 scale 5 Compare no load battery voltage with collimator lamp voltage To provide required illumination lamp voltage must be no less than value listed in the table Too high a voltag...

Page 126: ...d 72 1 83 m SID Load a 14 x 17 35 5 cm x 43 2 cm cassette and place on floor Position tube unit and col limator for a vertical x ray beam at a SID of 40 1 016 m Use collimator light to carefully cente...

Page 127: ...the four edges Total misalignment of either the two length of two width edges must not exceed 1 8 of SID Repeat Steps 1 through 7 for a SID of 72 1 83 m If edge to edge light field and x ray field ali...

Page 128: ...s actual field size does not fail within specifications adjust the appropriate pointer or pointers as follows a Remove the Blade Control Knobs and the nameplate Refer to Section 14 1 b Gently bend the...

Page 129: ...d so that reading in step 4 is approximately 3 4 scale sa 4 Make an exposure and measure radiation total R with no added filters This represents 100 transmission level Record readings sa 5 Place stand...

Page 130: ...trol Knob The slow speed should begin with some pre travel of the speed lever 3 Check Brake Handle The brake handle limit switch should be actuated when the Brake Handle is depressed within 3 8 9 53 m...

Page 131: ...unit off the wooden block a Connect a pull scale to a rigid member of the AMX Set 6S2 the Forward Reverse switch to OFF b With the brake handle depressed measure the force required to move the unit i...

Page 132: ...heck 4A1R30 setting a Turn keyed switch OFF and wait for battery voltage to drop below 130 volts b Turn keyed switch to CHARGE and note voltage when Charge Complete Lamp lights c Charge Complete Lamp...

Page 133: ...holes of the kick panel line up Place the three completed Battery Service Logs F3560 in the plastic envelope on the rear surface of the cassette drawer Re install the cassette drawer and replace the r...

Page 134: ...ield with lead 4 4 Take one exposure every minute for 10 minutes Do not run rotor more than 6 seconds per exposure Record battery voltage after each exposure After the series of 10 exposures allow bat...

Page 135: ...may be transported manuaily if the user desires to or if the drive feature fails Explain that if the motor drive is used very extensively the batteries will require more frequent charging Explain tha...

Page 136: ...of Product Locator Cards File District set green stripe Mail Installation Set red stripe in salmon envelope Complete and file PMS Data Record F3316 HEW Data Record F3382 Complete Assemblers Report Fe...

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Page 138: ...n Form F3382 Systems Field Tests for HEW Compliance and or on Form F 3316 PMS Data Record Mobile Generator Note that all HEW Field Tests except Test 5 Test Set W Application and Function and Test 13 I...

Page 139: ...3382 Alignment Test Set F Sec 5 6 agree with actual field maintenance calls and when Actual vs Chapter 5 size within 1 8 of SiD ever repairing or replacing indicated Sec 4 4 collimator X Ray Field In...

Page 140: ...ach end 0 5 k 2 w Potentiometer wired as a variable Resistor SEC 2 MOBILE UNIT MECHANICAL CHECKS Tube Unit and Collimator Initial conditions Main power circuit breaker OFF X ray generator Standby swit...

Page 141: ...screws securing the telescoping arm lock and moving the lock forward or backwards to tighten or loosen the chain respectively See Chapter 8 Section 3 2 2 3 Column and Vertical Carriage Assembiy Initi...

Page 142: ...panels Covers and doors should fit properly The cassette door should be properly aligned and open and close without mechanical interfer ence The magnetic latches should be en gaged and have egual hold...

Page 143: ...rake handle is de pressed within 3 8 9 53 mm of its bottom brake released position The front safety bumper should depress completely without binding and spring return The drive power should be de ener...

Page 144: ...ed after charging See Chapter 4 Sec 2 OPERATION RESULTS EXPECTED SERVICE REFERENCE aa Connect 0 5K 2 watt potentiometer in series with Gray lead from 3TB1 26 Connect Digital Voltmeter 0 200 vdc scale...

Page 145: ...nerator standby switch ON Battery charge indicator Green band Charger cord disconnected OPERATION RESULTS EXPECTED SERVICE REFERENCE la Depress the hand switch ROTOR button Do not press X ray button b...

Page 146: ...ollimator blades and cover collimator port with a 1 8 3 175 mm thick lead sheet d Turn circuit breaker and standby switch ON Select 80 KVP 200 MAS 2 second exposure e Take an exposure and read the ma...

Page 147: ...h accurately calibrated horizontal sweep as shown in IHustration 5 1 lb Make an exposure at 10 MAS at 80 KVP measure exposure duration from scope waveform Make asecond exposure at 100 MAS 80 KVP Measu...

Page 148: ...MA Jacks on Panel 3 Connect 0 200 DCV Digital Voltmeter to 3TB1 27 and 3TB1 5 b Turn circuit breaker and stand by switch ON Note battery voltage 2 4 Discharge or charge battery for a voltage between...

Page 149: ...P 200 MAS Readjust 3A2R34 if reguired for MA value of step e Battery voltage should be between 110 and 120 volts MA should be 100 MA A KVP should be within 10 KVP 5 5 KVP 5 of selected value MA should...

Page 150: ...EAD SHEET A A FOR LONG RUNS USE TWISTED PAIR CABLE Belden No 8422 two cond twisted shielded 18mmfd ft X10 PROBES u WITH GROUNDED EU To KEEP CAPACITANCE EFFECTS AT A MINIMUM SHIELDS 0 r O CHI O cup GRO...

Page 151: ...Accuracy have been met YES Requirements of Sec 19 2 KVP Accuracy have been met Li YES e NO Requirements of Sec 19 2 Linearity have been met J NOT APPLICABLE The following data table substantiates the...

Page 152: ...apter 4 Sec 4 2 collimazor blades Light pattern should be of uniform brightness no shadows or blotches with sharply defined edges approx square with floor 2a Remove the blade To provide required illum...

Page 153: ...gnment Check Optional Accessory Initial conditions Same as Section 4 1 OPERATION RESULTS EXPECTED SERVICE REFERENCE ta Position the tube unit and coilimator to project the light field on a smooth refl...

Page 154: ...6 9 mm inches for a 12 304 8 mm field size at 48 SID 1 2 m 3 Mark light field Total misalignment of either length Chapter 4 Section 5 6 step 1c on x ray film or width edges must not exceed 0 86 and me...

Page 155: ...onnect battery and remove the three cell groups e Use furnished wrench remove vent caps and check electrolyte level in each celi using syringe f Replace vent caps reinstall battery and cover panels g...

Page 156: ...des and shield with lead Take one exposure every minute for 10 min Do not run rotor more than 6 seconds per exposure Record battery voltage after each exposure Battery voltage should be at least 112 v...

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Page 158: ...ut Couplers 42 500 Hz Inverter Driver Output Couplers INVERTERS ve X RAY TUBE FILAMENT SUPPLY AND CONTROL CIRCUITS X RAY EXPOSURE CONTROL 7 1 Off To Ready 7 2 Ready To Exposure Start EXPOSURE TERMINAT...

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Page 160: ...hich steps voltage down to supply the X ray tube filament The 509 Hz inverter output feeds on autotransformer which is controlled by the knob on the kvp selector The autotransformer feeds the primary...

Page 161: ...DICAL SYSTEMS _ SM AO654E 7 1576 LINA AVEX IWXWY JO WYHEDVIG M2018 q ITdWIS 1 9 NOLLVHISNTTI HAWHOJSNVHL AH HIWHOJSN YHL 01nv HILHIANI ZH 00S TN MV 11 SSN DGA OEL OLL AHILIV E HILINN H39UYVH I AHILIVE...

Page 162: ...7 1576 SM A0654E BATTERY CONDITION INDICATOR BATTERY CHARGER 3 pl BRIDGE CONTROL SCR me RECTIFIER 4CR3 5 A BATTERY CHARGE le BATTERY ON LEVEL INDICATOR SENSOR 1 CHARGE COMPLETE INDICATOR 18793 010 BLO...

Page 163: ...5 B and stopping the charging operation Contact 4A1K23 A 8 F opens to increase the emitter base voltage of 44107 Consequently the battery will not charge again until it has discharged about 3 volts b...

Page 164: ...ation 6 3 The UJT oscillator provides a source of short precisely timed negative pulses with a period determined by C21 and R18 plus R22 R18 is adjusted to obtain 500 Hz The pulses are coupled to the...

Page 165: ...ELECTRIC MEDICAL SYSTEMS 6 978 SM A 0654E SNYUL INdINO 9 NOILVHISNT1I HIAIHO HILHIANI ZH 005 HOLVYBIALLINW ZH 001 HO1VTWISO 100 1 20 evo IT 129 eu dk a Sb pi p ADN 3N03U4 pus EL biy _ 34 OGH9 LON L 60...

Page 166: ...GENERAL ELECTRIC MEDICAL SYSTEMS AMX II X RAY UNIT 6 978 SM A 0654E 4 5V mm He 40 80 u SEC DELAY I 22 02 ms sl ILLUSTRATION 6 4 6 7...

Page 167: ...ature SCR having an anode gate instead of the usual cathode gate and a built in avalance diode between the gate and cathode As voltage across the SUS rises to the switching voltage point 7 9 volts for...

Page 168: ...23A or B Capacitor C 6 charges to peak voltage through CR2 and R3 This voltage appears as an SCR gate trigger spike when 07 turns on as shown in W 24 A peak voltage as high as 100V is needed for gate...

Page 169: ...uare wave AC signal alternately to 2CR3 and 2CR6 Therefore one or the other SCR gate will be positive when the inverter is turned on Assume that 2CR3 turns on first Then 2CR6 will remain in a blocking...

Page 170: ...9 NOILVHISNITI IWXWV 3H1 30 HIWHYOJSNVHL AH ZH 009 3HL H3MOd OL G3SN Sv 1109419 H 1LH ANI 9 SSV19 SLINGNOD 9896 N HA IN3ddn9 NOH19313 SLONGNOD CHOC N3SHM LN3YYND NO81931 ax Tit OC A 6 11 itil 9496 UJA...

Page 171: ...38N1 AVH X 89 NOILVHISNTT 3801 1 AVH X ISNVHI OL INIMWVIHI ELE SX AAA HILHIANI ZH 09 OL AL AZI 390148 OHVA JOHLNOJ 3SVHd ONISNIS VW V943 O1 28 19 194 3 Z 1 VW OL YVNOILHOS 1 Od 894 9g4 JOVLIOA 1 1 LA...

Page 172: ...82 18791010 ILLUSTRATION 6 9 When a change in tube current causes V2 to vary Q60 collector voltage wili change That portion of collector voltage picked off by R30 is applied to C22 which then takes mo...

Page 173: ...he filament control voltage during warm up is adjusted as close as possible to that required to give a tube current of 100 ma during exposure 3 The X ray tube filament transformer receives power form...

Page 174: ...K1 A B C 13 8 3AK22 B 14 0 36 B 500 HZ INVERTER DRIVER 60 HZ INVERTER DRIVER 1 Y 60 HZ 1K1 A B 500 HZ INVERTER 37 C INVERTER FILAMENT AND mi 2 5 SEC 3A4K2 B READY ROTOR INTERLOCKS DELAY 81 B LIGHT y 3...

Page 175: ...K7 A 86 F 38 E X RAYS ARE WANTED 500 HZ SYNCH SHUT OFF SYNCH PULSE CAPACITOR CHARGE PULSE GATE GATE GENERATOR 91 F 91 500 HZ SHUT OFF DRIVER CAPACITOR IS HAS CHARGED STARTED EXPOSURE START PULSE TRIGG...

Page 176: ...to Exposure Start The sequence of events that occur to produce an exposure are shown in Illustration 6 13 These events presume the unit is in the READY state as described in Sec 7 1 When 3A1CR28 85 E...

Page 177: ...ng it on illustration 6 15 Capacitor 1C2 will discharge through 1C1 2CR2 and 2CR1 This forces more current through 2CR2 in the reverse direction than was flowing in the forward shutting it off The rev...

Page 178: ...1 and disconnect the battery from all circuits 8 3 Termination Due to Release of the Handswitch X Ray or Rotor Button Schematic reference sheet 9 Chapter 7 Release of the X ray button closes the 3A1K7...

Page 179: ...1 b 8K1 4 6 25 D allows exposure by closing the circuit for relay 1K1 Relay 1K1 applies battery power to the 500 Hz inverter d 8K1 7 9 25 D allows rotation of the tube rotor when collimator light swit...

Page 180: ...power to the motor drive system and start 8A102 96 F oscillating W 51 The sawtooth output of 8A1Q3 w 52 is combined with the DC voltsge from 6R1 Speed Control and 8A1R15 max speed adjust to provide pu...

Page 181: ...mps If a fault in the drive system occurs 8A2 R2 R3 R4 prevent excessive motor current and limit the amount of torque dev eloped When the operator selects reverse 6GS2 switches in an additional 10Q re...

Page 182: ...ltage across 60 Hz inverter driver pilot SCR s CH1 PROBE Collector of 3A5019 CH2 PROBE Collector of 3A5Q20 GND 3TB1 5 H 2 ms div V S v div x 10 probe TRIG INT DC Set Trig Voltage across 60 Hz inverter...

Page 183: ...J5 21 is the sum E of two shown above varying 40 v above AE ei and below O v W4 A Upper W4 B Lower 19 E 60 Hz inverter SCR gate signals CHL PROBE 3TS1 3 CH2 PROBE 3TS1 1 GND 3TS1 2 H 5 ms div 1l v div...

Page 184: ...be filament transformer Press ROTOR button tc operate 3TB1 8 3TB1 14 CHI scope as for W A Power to main winding of x ray tube stator Press ROTOR button to operate 3TB1 30 3TB1 28 CHI 5 ms div 10 v div...

Page 185: ...ent power control SCR Press ROTOR button to operate WLL B is same except 180 out of phase Cathode of 3A2CR23 Anode of 3A2CR23 5 ms div 05 v div x 10 probe INT DC Set Point Trigger voltage at gates of...

Page 186: ...a 0 2 sec div 0 2 v div x 10 probe INT DC Set Point Same as W13 A except H is 5 ms div to show waveform during run conditions X Ray tube filament transformer 7T2 primary voltage Press ROTOR button to...

Page 187: ...0 5V or more X Ray exposure turn off signal at gate of 2CR1 Depress ROTOR and X RAY buttons to operate 3A6 5 3a6 6 CHL S ms div 0 l v div x 10 probe Only the end of the 40 ms exposure of W15 is shown...

Page 188: ...I PROBE Collector of 3A3045 CH2 PROBE Collector of 3A3049 GND 3TB1 5 rov H 5 ms div 2 v div x 10 probe TRIG INT DC Set Point Waveforms A and B must be 180 out of phase as shown and with the time per 1...

Page 189: ...ttom of 3A3R16 or 17 l ms div 1 0 v div x 10 probe CH1 INT DC Set Point Voltage for base of 3A3Q55 Press ROTOR Button to operate Top of 3A3R57 3TB1 11 l ms div 0 5 v div x 10 probe INT DC Set Point Vo...

Page 190: ...of 3A3R8 Bottom of 3A3R28 2TB1 4 1 ms div 0 2 v div x 10 probe INT DC Set Point Output of 500 Hz inverter Select 80 kvp 10 mas Depress ROTOR and X RAY button to operate 2TB1 7 2TB1 9 2TB1 2 1 ms div...

Page 191: ...kvp 8 mas 60 kvp 8 mas 2TBI PIL 2TB1 P2L 10 ms div 5 v div x 10 probe INT DC Set Point Power Supply for x ray ON light circuit Press ROTOR button to operate Anode of 3A2CR37 Cathode of 3A2CR38 Cathode...

Page 192: ...ess ROTOR and X RAY buttons to operate Bottom of 3A2R40 Base of 3A2Q39 al sec div 0 02 v div x 10 probe Voltage across 5DS5 x ray ON light 3TB1 25 3TB1 9 l sec div 5 v div x 10 probe Voltage proportio...

Page 193: ...correct and ma regulator adjusted correctly Filament voltage too low and ma regulator pulling up or filament voltage normal but regulator pulling up improperly Signal proportional to ma for ma regulat...

Page 194: ...v div x 10 probe INT DC AUTO Signal that shut off capacitors are charged Press ROTOR and X RAY buttons Square top pulses show voltage during ROTOR run up Bottom line is voltage after exposure Base of...

Page 195: ...tages CAUTION DO NOT REVERSE SCOPE CONNECTIONS EXPOSURE MAY NOT TERMINATE W36 A 82 F RE NE 3 W37 Interval Timer adjustment MN nu W37 A Exposure interval for 50 kvp 10 MAS selection W37 B Exposure inte...

Page 196: ...V bleeder and scope Anode Terminals on HV Cathode bleeder Ground 0 1 sec div and 5 ms div 2 v div x 10 probe x 1000 bleeder Algebriac addition INT DC Set Point Press ROTOR and X RAY buttons to operate...

Page 197: ...ppear as battery charges Small square wave appears just before the solid top line indicates charge complete Base voltages of 4A1Q7 Base of 4A1Q7 Cathode of 4ALCR22 H and V as for W4i A Lower trace of...

Page 198: ...letter W followed by a number identifies the point in the circuit at which the voltage appears on page 10 of the schematics in Chapter 6 w 51 1K Hz sawtooth from UJT oscillator 8A1 02 Ch 1 probe Plus...

Page 199: ...1 5 GND 8 1 1 H 0 5 mx div V 0 5 v iv x 10 probe Trig Int AC Set Point Speed Control 53 A max 53 B slow Spikes shoule expand to the right as speed is increased W 54 Comparing the input and output of Q...

Page 200: ...obe Collector of 8Al 06 GND SAl 1 H 0 5 ms div 0 5 V div x 10 probe Trig Int AC Set Point Brake Handle down W 56 Voltage across load resistor 8A1 R23 for different speeds Ch l Probe Junction of R21 an...

Page 201: ...D 8A1 1 H 0 5 ms div 05 V div x 10 probe Trig Int AC Set Point ri i r H i 1 i A i i ia Brake Handle down W 59B Lower max speed W 59A Upper slow E d W 60 Output voltage to drive motor 6B2 Ch 1 Probe 8A...

Page 202: ...4 W 61 Overload protection circuit Wave form shows circuit during normal operating condition Ch l Probe Base 8 1 01 GND Collector of 8A1 04 H 0 5 ms div V 1 0 V div x 10 probe Trig Int AC Set Point Br...

Page 203: ......

Page 204: ...NVERTER CIRCUIT Models 46 165600G10 Thru G12 M eres 2 TUBE STATOR FILAMENT COLLIMATOR LIGHT ALL MODELS 3 500 Hz INVERTER ON OFF SWITCHES ALL MODELS 4 500 Hz INVERTER CIRCUITS ALL MODELS 5 MA CIRCUITS...

Page 205: ...verload Board 3A1 Filament MA Regulator Board 3A2 500 Hz Inverter Driver Board 3A3 Time Delay Board 3A4 60 Hz Inverter Driver Board 3A5 Pulse Board 3A6 BATTERY CHARGER ASSEMBLY 4 Battery Charger CKT B...

Page 206: ...ndswitch A Opens supply voltage to 1K1 after 25 C safety turn off X ray button 3 seconds 83 D 3A1K7 X Ray exposure start Depressing handswitch A Remove the short across gate 86 F 24 VDC X RAY button t...

Page 207: ...battery when battery 12 E 9 E 60 E current drain is excessive 32 0 9 0 12 F 72 E Charge Rate 35 D 35 F 94 F Excessive 72 0 32 E 94 D 8K1 Collimator light Depressing handswitch D Prevents exposures wh...

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Page 212: ...O 1 J 1 46 1884946G1 A NOT USED 1 402 10 24V L 4ai 6 S TO 4 _ 120V 581 415 3A R8 CRS 300 R14 RISO P IA 1N5221B 913 oye TP 1 S06 TP2 2N3417 R7 CR9 SMI 4 1N4148 CR6 3 1N935 9 0V CR12 19 1K 1N823 196 6 2...

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Page 214: ...4DSI CTRA COLLIMATOR 8 3A2TIB LIGHT 4 PRIMARY 3 o 3A2R15 2 Sik 2 1 6CBI POLLY NY NY Nem 3A2T 18 i TO 7 A m SEC 2 O 7TBI XC TB 7 A i 3A2RI9 1 ANA 8F2 IK MODELS 46 165600GI0Q thur G12 i BA 1 WII C 3A2CR...

Page 215: ...TO 3J6 3 165 IR6 SEE 87 G Nir 9 ANN S RU 27K 27K 3A6R4 120 V 2w 1 2W 100 WIE EXPOSURE STOP BATTERY 1CR2 1CR1 2C2 SIGNAL FROM TIMER A408 A408 O MFD PR OF 4 36 7 1N1186 1N1186 3J6 6 EE 87 fa ICI IC 2 3R...

Page 216: ...3 B CAN 005 MFD e E 60 W2I B PULSE GATE o 2 343020 L SEE 91 F M NL 75304 SS IO 2N525 TM 33 35 m 03 23 2N 4990 O 55 3A3RI7 1 DCS SEE OIF 3A3R5 1OK 3A 3Q59 3A3055 md AAA W 26 2N4990 Sa ww D 2N697 3J3 27...

Page 217: ...AGE WITH THE 10 OHM RESISTO SHORTED SWITCH RELEASED IF DIFFERENCE IN VOLTAGE IS MORE THAN 1 VOLT ADJUST 3A2R27 REPEAT CHECKS AND ADJUSTMENTS WITH THE 10 OHM RESISTOR IN AND OUT UNTIL THE CHANGE IS LES...

Page 218: ...TUBE UNIT FAST Mao Fon AMX ALL MODELS REVISIONS A iB 3TB1 39 24 E NY N TPLI 3TBI 28 3TBI 29 24 F 24 E 7CR2 7CR4 125 KVP 125 X RAY TUBE HRT 1 0mm 15 7CRI 7CR3 125 KVP 125 KVP ANTPL2 7PL2 A TO _ 3TB 18...

Page 219: ...S3A4R4 120 34 5 znak 27 ATTI 2N697 34442 UNITS ABOVE o SN 326500 3 SEPT 75 7 a 5 TO ITB2 SASRIS 39925 S3A4R29 op 3J2 21 OF SALI G K 2 2K 215K 75K S 150K FILAMENT 3A4RI7 1 o 6 ee eee le TO 2TBI 2 _ VE...

Page 220: ...OWN AT 82 A 3AICR39 3A1048 47 MFD PROCEDURE NO E INSO59 2N2646 3AIR32 N 3AIC25 X TO 3CRI 15 IR2 YEL AT 92 8 S 3AIR6 ANN ES sk O 47MFD WHT AT 14 8 553 2 330 3AICR47 8 2K 373 313 FRI 3AIR2 3AICR5 C6B E...

Page 221: ...B SEC 3 POWER FOR MA OVERLOAD TIMED OPEN 1 0 3A1CRi3 IN5059 yore 35VRMS CIRCUIT FROM 60 HZ 25 C IN5059 B 60 HZ INVERTER sumos SA YEL BLK To 3CR2 3AIC3 A4 foi meo 3AicR44 2 3AIR43 SIGNAL PROPORTIONAL 4...

Page 222: ...068 3A1CR66 100 4 7K S 24V z 261864 2k 3A1RS JAR Se 3TB1 21 341 19 3A1CR48 SS38 13 At14B SALCRIS 3n1CR10 3K3 EC 14505 14505 TIMED OPEN HAS SELECTOR PRIMARY t SHOWN AT 82 A 371 s 166 L SEE a B D E F 8...

Page 223: ...Si Z 5n 100W 5n 100W 10n 100W p IN 4 4 BAZCRI 7 BAZKI 2 R29 c 8TSI 9 IN50604 103 C 7 25 W 8A2KI B A APTSI 8F2 BA2TSI I BA2R3 95 0 C3 GFF REV a 5n 100W 8 EMI 9 C6 DIRECTION i 6CBI 022 SELECTOR A R30 MF...