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SERVICE MANUAL - Air Techniques

1. 36 Dryer baffles missing misaligned wash water inadequate 29 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 1 FILMS ARE TOO DARK or GRAINY A Confirm the following initial requirements for AT2000XR Automatic film processing 1 Proper X Ray exposure setting overexposure will create dark films Film is not outdated within manufacturer s recommended processing life or defective Film is stored in a warm environment Too hot conditions will increase base fog Film used is not Automatic Processing type Film screen combination is correct per manufacturer s specifications Intensifying screens are not worn outdated and or dirty Sr HU Chemistry is not contaminated and within recommended useful life Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 8 Chemistry listed is designed for roller transport processors B Confirm the DARKROOM requirements are met 1 Room temperature is below 80 F 2 Room has no light leaks Fogging is manifested from light leaking 3 Room SAFELIGHT is correct for automatic processing 15 watt Ruby Red safelite amp minimum 4 feet from 2000 C If films initially are dark immediately after chemical changing the cause can be attributed to high levels of chemical activity Add Starter to developer as needed See chemistry manufacturer s recommendation D Check the chemistry temperature for being too HOT o
2. 13 L FUNCTIONAL MODES 4 554 e ROLE 14 1 CHEMISTRY HEATER ABNORMAL CONDITIONS AND PROTECTION 15 1 TRAILING EDGE TO TRAILING EDGE FILM TIMES 19 HEATER PAD POWER CONTROL 16 1 REPLENISHER RATES FOR DEVELOPER AND FIXER 17 1 MEASURING REPLENISHER DISPENSING 18 MODE Speed CHANGE or RESULT NORMAL to ENDO to NORMAL Stand By CLOSED then OPEN for 4 seconds or more Process starts then stops at shutter closed and stays in selected mode Stand By CLOSED then OPEN for 4 seconds or more Process starts and continues to operate in selected mode Operating OPEN NORMAL to ENDO to NORMAL Operating CLOSED ENDO to NORMAL only Operating ENDO Cycle CLOSED then OPEN for 4 seconds or more ENDO will default to NORMAL then starts a new cycle Operating Normal Cycle CLOSED then OPEN for 4 seconds or more Remains in NORMAL mode and starts a new cycle Cleaning Manual CLOSED or OPEN NORMAL mode only Inhibits intial replenishment Shutter Action 1 Accumunlates film length for replenishment 2 Does not initiate process cycle End of ENDO Cycle CLOSED Restes to NORMAL mode End of Normal Cycle CLOSED Stays in NORMAL mode Power On CLOSED or OPEN Is in NORMAL mode Power On OPEN
3. Inhibits intial replenishment FUNCTION CHARTS FUNCTIONAL MODES Normal Temperature 77 to 81 F 77 to 81 F Developer Temperature Heatup Developer Temperature Heatup Developer Temperature Heatup Developer Temperature Rise Heatup Fast Temperature Rise Developer Temperature Heatup 82 F ADC 118 ADC 118 SEE NOTE 2 In Control Loop Guard Band Se E SEE NOTE 1 Developer Hot Developer Hot p Processing NORMAL 84 F Set Point 84 F Set Point Processing NORMAL Processing ENDO 84 F Set Point Processing ENDO 84 F Set Point Processing CLEANING Processing CLEANING Processing CLEANING shutter open fail 84 F Set Point 80 to 84 F READY NORM DEVTEMP DISPLAY LIGHT ARROW 84 F o 84 F ENDO ARROW EXER SHUTTER HEATER POWER EC SE SR 100 1st min Closed lt 100 to GC z OFF OFF z OFF z 2 2 2 z OFF Closed SEE NOTE 3 lt E ON z WE e to 20 amp 100 for 1 min z every ADC change if temp drops ES 2 ON as long as shutter is open SEE NOTE 4 ON as long as shutter is open SEE NOTE 4 ON as long as shutter is open SEE NOTE 4 ON as long as shutter is open SEE NOTE 4 2 Hi 2 eee Flashing SUDO short long s
4. N gt DESCRIPTION Cover Assembly with Electronic Module Base Assembly Developer Transport Fixer Transport Wash Dry Transport Leveling Base Assembly Leveling Feet PART NUMBER 45800 45200 45500 45505 45510 45100 43106 INTERNAL PARTS IDENTIFICATION PROCESSOR COVER ELECTRICAL PROCESSOR ABE COVER P N 45800 RAISED BOSS BAFFLE PLATES INNER BAFFLE ON LEFT END BOTTOM OF BAFFLE MUST PASS BELOW RAISED BOSS ON SIDE PLATE ACTIVATING SHUTTER WASH DRY RACK P N 45510 FIXER RACK RED P N 45505 DEVELOPER PN 39526 RACK BLACK P N 45500 WEEP HOLE FIXER DRAIN WASH DRY TUBE RED DRAIN TUBE DEVELOPER P N 43287 43270 DRIVE BLOCK ASS Y DRAIN TUBE P N 45240 BLACK FILL LINE P N 43286 RUBBER WATER WASHER LEVEL P N 43271 COVER 9 f SENSOR lt PIN 43258 A P N 45450 DEVELOPER TANK DRIVESHAFT DIN 43242 DEVELOPER RACK LATCH P N43254 WASHIDRY FILM 4 INLET H eg RACK Le 45 p ds FIXER RACK LATCHES P N 45567 Ka LATCH DIN 43256 LEVELING e PIN 43255 BASE 9 7 P N 45100 THERMISTOR PROBE P N 45790 LEVELING BUBBLE FEET SAFETY SWITCH ACTIVATOR P N 45323 LEVEL P N 43106 1 OPERATOR CONTROLS The following provides a brief summary description of the operating controls of the AT2000 XR Film Processor Refer to the Operator s Manual shipped with the
5. L Keep all attaching hardware and fastening screws together with the associated removed assembly If necessary use separate storage containers or envelopes for each hardware group Prior to removing any part or assembly note location and orientation of assemblies being removed Tag wires and associated mating connectors before disconnecting Use care when disconnecting mating connectors so as not to damage the connector keys and connection to the associated printed circuit board wire or cable Be aware of the damage impact of electrostatic discharge ESD on electronic devices and use ESD precautions when handling printed circuit boards and wiring comprising the Scanner L LL E PRODUCT OVERVIEW IEC CONNECTOR At Rear ADJUST SET TEMP PONER SWITCH OPERATOR CONTROLS FILM RECEPTACLE TRAY FILM INLET WITH ACTIVATING SHUTTER LEVELING LEVELING FOOT BASE BUBBLE 1 LEVEL REPLENISHMENT PUMP AND AGITATOR MOTOR DRAW LEVELING ELECTRICAL WATER FLOW WATER PRESSURE WATER CONNECTION WATER BACKFLOW PREVENTION WATER TEMP DRAIN DIMENSIONS WEIGHT VENTILATION Depth 25 Width SPECIFICATIONS 115VAC 60 Hz 8 AMPS Use a 15 AMP 3 prong grounded out let A separate dedicated 15 AMP line is recommended 1 2 gallon per minute water flow while processing film 80 PSI maximum 30 PSI minimum Water source must have a manual shut off near processor Va
6. Slowly lower each rack into its tank Match color coded end plates to color coded latches Do not splash fixer into Developer tank when installing Fixer rack Close all the latches Replace the cover and reconnect the cover electrical cable to the processor base 8 PROCESS A CLEANING FILM d d d Turn ON the power Process a new cleaning film at NORMAL SPEED after READY light illuminates If chemistry or water splashes onto the film inlet shelf wipe it up with a paper towel or sponge 54 MAINTENANCE QUARTERLY QUARTERLY CLEAN WITH Formula 2000 Plus Clean your A T2000 XR processor with Formula 2000 Plus Tank and Transport Cleanser every three months or whenever a black residue is evident on racks and or tank Formula 2000 Plus Part Number 43945 is available from your authorized Air Techniques Dealer Caution Turn POWER switch OFF before removing the cover the rack assembly or disconnecting any electrical cables Use Formula 2000 Plus INA WELL VENTILATED AREA 1 TURN OFF POWER AND CLOSE WATER SUPPLY VALVE Unplug the cover electrical cable from the processor base and remove the cover 2 REMOVE ALL RACK ASSEMBLIES RINSE AND SET ASIDE 3 PREPARE PROCESSOR FOR CLEANING WITH FORMULA 2000 Plus LI Unscrew and remove the Fixer Developer and Wash tank drain tubes and completely drain the tanks Replace the color coded drain tubes fill all three tanks with warm water then drain Repeat this drain fil
7. Important Opening the cover during the processing cycle or during CLEANING MODE cycle opens the safety switch and stops only the drive motor The rollers and drive gears stop rotating This is a safety feature of the A T2000 XR 55 MAINTENANCE QUARTERLY 4 RUN PROCESSOR a a Press and hold CLEANING MODE and turn on the power at the same time to activate the 10 minute cleaning cycle If deeper cleaning is required press CLEANING MODE again when the cycle ends Occasionally while the processor is running lift the cover and wipe the rollers and drive gears of each rack above the solution with a sponge to loosen any remaining deposits Use a separate sponge for each tank Close the cover so that rollers can resume rotating in the cleaning solution 5 CLEAN THE RACKS G 3 Turn OFF the POWER switch disconnect the cover electrical cable from the processor base and remove the cover Remove the rack assemblies and place them in a large sink Clean with a soft brush or sponge under warm water Rotate the gears and rollers while cleaning Remove all traces of Formula 2000 Plus to avoid contaminating the fresh chem istry 6 PRELIMINARY RINSE flushing Formula 2000 Plus d d 3 Make sure the POWER switch is OFF Remove the drain tubes and drain the tanks Dispose of the cleaning solution in accordance with local codes Replace the drain tubes Fill the tanks with water replace the cover and reconnect the
8. Off to 20 SIT z z 2 2 2 E 2 2 Open but no signal Closed Flashing short long x 1 Control loop 80 to 84 F during heat up and from above 84 F upon cool down 2 Set point temperature range is between 79 and 86 F ADC Analog to Digital Count 3 100 HEATER POWER for 1 minute when processor power is turn ON each time the ADC changes increases as temperature drops and every 4 minutes if temperature is below set point and ADC does not change 4 See page 17 for pump on times 14 FUNCTION CHARTS CHEMISTRY HEATER ABNORMAL CONDITIONS AND PROTECTION DEVICE STATE or HEATER DEVICE TEMPERATURE DISPLAY CONTROL HEATER Thermistor 15 F SEE NOTE 1 8 SEE NOTE 2 Developer Temp Thermistor Condition Plate Thermal Switches gt 130 F Thermistor Condition Bv Thermistor OFF Dev or Fix SEE NOTE 4 SEE NOTE 5 y Resetable Plate Thermal Fuse gt 305 F Thermistor Condition Be Thermistar OFF Plate Center SEE NOTE 6 SEE NOTE 5 y Blown Thermal Fuse Notes 1 There is only a developer thermistor There is no monitoring or control of the fixer temperature 2 Asensed temperature of lt 15 F produces a voltage that looks like an open circuit and the heater control turns off At 32 F the display shows approximately 37 F due to zener diode conduction This condition occurs only if there is no chemistry in one or both of the developer or fixer tanks for the
9. tank s containing no chemistry and the developer thermistor senses a temperature below the set point typically 82 for the heating control system has failed into being continuously on 5 The thermistor condition is the temperature that the thermistor senses or to which it defaults based on abnormal conditions 6 This condition occurs only if there both tanks and both thermal switches fail in the closed position and the developer thermistor is sensing a temperature below the set point typically 82 or the heating control system has failed into being continuously on 2 50 TRAILING EDGE TRAILING EDGE FILM TIMES SHUTTER X OVER to IN to DEV FIX FIX min sec min sec min sec in 0 18 0 28 7 CLEANING Notes 1 Trailing edge not in fixer by approximately 1 4 inch when speed goes slow and leading edge out of fixer by a 1 16 inch when speed goes to fast 2 CLEANING Mode is formally known as MANUAL Mode Keypad has changed General Notes 1 Drive motor gearbox has 21 tooth gear for ENDO and 52 tooth gear for NORMAL 2 Drive motor gearbox and worm shaft have 12 tooth sprockets 3 Drive motor has grade A insulation and a 1 8 uF capacitor 4 Shutter close to speed change fast to slow 41 seconds and speed change slow to fast is 23 or 64 seconds after shutter closes 15 FUNCTION CHARTS HEATER PAD POWER CONTROL General Note TEMPERATURE The theroetical heating rate of t
10. 45201 49793 43437 45221 43859 44043 44041 44044 44042 44265 44209 44210 44211 49963 44206 43357 43885 30550 44361 44362 44363 45950 45436P 45437 45439 30535 30998 30549 30541 30431 30409 30668 30562 45043 45042 BASE ASSEMBLY Drive Block Assembly 45270 ITEM DESCRIPTION PART NUMBER 1 Bearing Shaft 43244 2 Drive Shaft Clamp Black 43223 3 Drive Shaft Clamp Red 43246 4 Main Drive Shaft 43242 5 Drive Gear Sprocket 12 tooth 43243 6 Water Level Sensor 45450 7 Capacitor Drive Motor 44275 8 Snap Ring 41127 9 Drive Motor Assembly 45472 10 Drive Motor Mounting Plate 43253 11 Molded Drive Block 43239 13 Drive Chain 43247 12 14 15 Rack Latch Black 43254 16 Thermistor 45970 17 Screw 30539 18 Hex Nut 30249 19 Screw 30463 20 Lockwasher 30263 21 Flatwasher 30052 CHAINADJUSTMENT 5 ADJUST 55 WORM SPROCKET 2 e MOTOR SPROCKET BASE ASSEMBLY Solenoid P N 43980 INSTRUCTIONS FOR WATER SOLENOID REPLACEMENT Phillips screwdriver required SOLENOID VALVE WATER INTLET DETAILA CONFIRM THAT THERE IS NOT A BLACK DISK FLOW RESTRICTOR PRESENT BEFORE INSTALLING INTO THE BASE IMPORTANT TURN OFF WATER SUPPLY BEFORE BEGINNING THE REPLACEMENT PROCEDURE 1 Turn unit upside down and remove Base Cover Panel 6 screws to access the water solenoid 2 Turn unit upside down and remove Base Cover Panel 6 screws to access the wa
11. Once attained re tighten the screws and verify the rack assembly is still sit ting flush re perform procedure if necessary Check all TRANSPORT RACKS in this manner to verify squareness 2 Check for damaged gears amp rollers on rack assemblies Replace if feasible as required 6 FILM HAS STREAKING RANDOMLY A Confirm the followng initial requirements for AT2000XR Automatic film processing 1 Chemistry is not contaminated and within recommended useful life Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems Film used is designed for Automatic Processing Chemistry used is designed for roller transport processors Check the wash drain tube and verify it DOES NOT have a rubber washer Check the solution levels are at the proper height HS B Check the CHEMISTRY REPLENISHMENT level control and pumping rate 1 Inspect the both developer amp fixer Drain Tube washer condition Must be in good condition 2 Confirm that both developer amp fixer Drain Tubes firmly seat in their drain sockets 3 Analyze the chemistry replenishment for insufficient amounts per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 REPLENISHER PUMP PROBLEMS provided on page 26 C Check the Agitators freely spin chemistry circulation Disassemble the agitator assembies as shown by the BASE ASSEMBLY section page 48 Analyze the agitator per the check sequence listed in TROUBLESHOOTING GUIDE SECTION
12. Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 2 Film used is designed for Automatic Processing 3 Shutter Bar amp Guard and Film Inlet are dry if not then wipe dry 4 Inletrollers of Developer Transport are dry if not then process a CLEANING FILM after the READY light illuminates NOTE For offices with DAYLIGHT LOADERS verify the lid is partially open when ever the unit is not being used any anticipated long periods of no use This prevents condensation onto the inlet rollers of the Developer Transport Rack Open lid no more than 1 4 in order to prevent chemistry oxidation B Check the levelness of the processor by making sure thet the Leveling frame Bubble indicates proper level of unit Adjust feet as necessary to position the Bubble in the center of the sight use 2Ft level across frame to check C Check the squareness of the Transport Racks as follows Place a transport rack independently onto a FLAT amp LEVEL surface the rack should rest evenly on it s side plates If it does not loosen but don t remove the screws and twist the rack assembly to get the assembly to sit flush Once attained re tighten the screws and verify the rack assembly is still sitting flush re perform procedure if req Check all TRANSPORT RACKS in this manner to verify squareness D Check the Baffle Plates in the Wash Dry Rack amp verify they are installed correctly as follows Refer to the detai
13. standing water in the P trap at the bottom of the pipe Hoses routed into the chemistry recovery containers must be cut so that the ends are 2 above the highest expected solution level in the recovery container 1 Chemistry recovery amp replenishment bottles must be placed below the processor under the counter REPLENISHER BOTTLES CANNOT BE ABOVE THE PROCESSOR WATER RECIRCULATION OPTION PLUMBING CONNECTIONS 1 2 Fill the container with fresh water to the bottom of the WATER label Cut the wash water drain hose so that when it is inserted into the water container it reaches to the bottom of the WATER label Insert the hose into the container Insert the wash water inlet hose all the way to the bottom of the water container See the illustration below for the correct installation WARNING THIS PLUMBING CONFIGURATION CANNOT BE CONNECTED TO A FRESH WATER SUPPLY LINE NOTE DRAIN HOSES MUST SLOPE DEVELOPER DOWNWARDS WITHOUT ANY U s OR UPWARD DRAIN HOSE BLACK BENDS AND SHOULD NOT BE FASTENED TO THE COUNTER TOP NEAR THE UNIT FIXER DRAIN HOSE RED DRAIN HOSE WHITE WASH WATER INLET HOSE INSERT TO DRAIN RINSE REFILL WITH FRESH WATER DAILY WATER HOSE END MUST BE AT BOTTOM OF CONTAINER CONTAINER CHEMISTRY CHEMISTRY REVOVERY CONTAINERS REPLENISHMENT Optional CONTAINERS THE MAXIMUM DISCHARGED FLUID LEVEL 2 MINIMUM MAJOR ASSEMBLIES AND PARTS NO OI
14. Assembly Top View 40 Base Assembly Bottom View 42 Base Assembly Drive Block Assembly P N 45270 44 Base Assembly Solenoid P N 43980 45 Base Assembly Heater Pad P N 45950 46 Base Assembly Internal Water Recirculation 48 Roller Transports 33225 vo Ms Pres Duka alas Sere Gites Sees Sisal Lees 49 Roller Transport ed rune EAR n Eon 50 Maintenance Weekly 52 Maintenance Monthly 53 Maintenance Quarterly 55 Daylight bodder s y a unos u upas apu T apa Y cta 57 Spare Darfs t Fe Ob Bete Ge ee dit oba 58 INTRODUCTION Purpose This document provides the instructions necessary to perform repair and maintenance of the AT2000 XR Automatic Film Processor It is intended for all recognizable field servicing of the unit and includes procedures to disassemble the unit to access internal components as well as steps necessary to perform preventive maintenance inspection cleaning troubleshooting and removal replacement of defective parts This manual is not intended for the routine use of the AT2000 XR Film Processo
15. C Check all the transport racks for squareness and inspect the gears for any broken parts 1 If NOT square place on level surface and loosen the tie rod screws but don t remove Firmly hold down the rack plates so they sit flat against the surface and retighten the screws 2 If any gears are broken replace the appropriate gear if feasible or the affected transport D Check the cleanliness of the transport racks Failure to maintain the processor per the requirements can cause the transport rollers to become slimy and allow the films to slip during processing If at all questionable clean the transports and reiterate that the AT2000XR requires routine main tenance which is fully described in detail in the USER S MANUAL E Reiterate if films are not fed straight when inserting into film inlet they can get caught in the transports NOTE Pedo films must be processed lengthwise F Check the process time for both speeds Hold Film Shutter open for 5 seconds then release 1 If ENDO speed processing time after releasing the shutter is LESS THAN 2 min 40 sec replace Electronics Module p n 45415 2 IF NORMAL speed processing time after releasing the shutter is LESS THAN 5 min 55 sec replace Module p n 45415 5 DRIVE MOTOR NORMAL SPEED DOES NOT RUN A Check that the Top Cover assembly is seated squarely on the Base If not the interlock switch may not be engaged which will prevent the transport drive motor from runni
16. Check voltage J9 if voltage is 103 5 126 5VAC replace the replenisher pump p n 44265 3 If voltage is NOT 103 5 126 5VAC replace the Electronics Module p n 45415 B Replenisher pumps are running but no suction to pull chemistry from bottles or pumps are using chemistries at different rates uneven dispensing from bottles Check that the pick up tubing in the bottles reach down BELOW the chemistry level Check that the bottle caps are loose a tight cap will diminish suction capability Check that the tubing is not crimped if so replace as required Check the poppet valves on the pumps if worn or broken replace with kit p n 49793 If all prior checks are satisfactory replace the replenisher pump p n 44265 OQ O N 9 CHEMISTRY AGITATOR PROBLEMS A Agitators are not spinning no chemistry circulation Disassemble the agitator assemblies as shown by the BASE ASSEMBLY section page 48 1 Check the condition of the magnet bushing and the teflon washer If any of the component conditions is are suspect i e worn black specs flaking broken etc replace as required 2 Clean all items with Spray 2000 Plus and warm water then thoroughly rinse and reassemble 3 Check the Circulator Drawer assembly is fully closed amp fastened in the Base 4 If all prior checks are satisfactory remove the Circulator Drawer screw and slide the assembly out of the Base Using the TEST POINT CHART amp SYSTEM SCHEMATIC page 19 a
17. Cleaning the A T2000 XR on a weekly monthly and quarterly basis is critical in maintaining quality processor performance We recommend the maintenance procedure outlined below using Spray 2000 Plus and Formula 2000 Plus cleansers especially formulated for the A T2000 XR This suggested maintenance schedule may have to be modified if your processor requires more frequent cleaning WEEKLY Clean Rack Assemblies Caution Turn POWER switch OFF before removing the cover the rack assembly or disconnecting any electrical cables 1 SLIDE THE LATCHES OPEN 3 d 1 Unplug the processor cover electrical cable from the processor base and remove cover Set aside Slide the latches open Lift each rack assembly straight up and move it directly to the side to avoid drip ping chemistry into the adjacent tanks 2 CLEAN RACK ASSEMBLIES Do not soak overnight d d d Place the rack assemblies in a large sink thoroughly moisten with Spray 2000 Plus or water Clean with a soft brush or use a sponge for each rack and warm running water to clean rollers and gears Be sure to rotate gears while cleaning rollers Rinse each rack assembly thoroughly and allow to dry When cleaning the gears a soft brush can be used to loosen and remove stubborn deposits Do not use soap detergents or abrasive cleaners Be sure to use a separate soft bristle brush or sponge for each rack Color coded sponges are supplied with each case of Air Tec
18. DE Lu gt LLI w DEVELOPER BASE ASSEMBLY 45200 DETAIL A DETAIL A 17A ON O Go N Sch c CX c N o 17 18 19 20 21 22 23 24 BASE ASSEMBLY VIEW DESCRIPTION Screw Drive Block Mount Interlock Post Drain Tube Washer Drain Tube Assembly Black includes item 2 Drain Tube Assembly Red includes item 2 Drain Tube Wash Screw Gear Cover Screw Gear Cover Gear Cover Molded Drive Block Assembly Screw Electrical Cover Electrical Compartment Cover Component Connector Plate Base Wiring Harness Complete Thumb Screw Circulator Cover Fixer Circulator Cover Red Developer Circulator Cover Black Circulator Magnet Teflon Washer Quantity 2 per tank magnet Bearing Ceramic Base Sub Assembly Circulator Drawer Assembly Circulator Drawer Replacement Kit Includes tank magnets and washers included Film Feeder Modified Bottom Plate Assembly Thermistor Assembly see Drive Block Assembly Water Level Sensor see Drive Block Component Detail Wash Tank Drain Tube Plug Kit used during cleaning 41 PART NUMBER 30569 45323 43271 43286 43287 43270 30568 30539 43258 45240 30562 43259 45445 45440 30552 43385 43384 43233 41286 43232 45201 45262 45691 45567 43885 45970 45450 43189 BASE ASSEMBLY VIEW FUSE Item 4 IS IN
19. Film Processor Use the tables along with the system schematic to check the operating values of each listed component Note All values listed are the normal operating parameters for that component Any different values measured during testing implies a problem with that component COMPONENT TESTPOINT TESTPOINT VOLTGAGE RANGE RESISTANCE RANGE Being Evaluated EE PIN No s dere Ohms WATER SENSOR PRIPIS Contacts 2 component side 4812 283 500 600 500 600 J1 J1 J3 component side J3 harness side J3 harness side 3 amp 5 Endo 3 amp 6 Endo 1 amp 2 1 amp 3 Endo 2 amp 3 Norm 103 5 126 5 103 5 126 5 N A 165 175 165 175 245 300 245 300 500 600 245 300 245 300 HEATER PAD J1 J4 harness side J4 component side 3 amp 10 1 amp 2 1 amp 2 N A 103 5 126 5 N A 52 5 60 5 N A 52 5 60 5 THERMISTOR J1 J5 component side REPLENISHERS J1 13 amp 14 1 amp 3 2 amp 3 N A N A 103 5 126 5 See Resistance Chart page 22 1225 1500 J9 harness side J9 1 amp 2 1 amp 2 103 5 126 5 103 5 126 5 N A 1225 1500 WATER SOLENOID J1 OR WATER RECIRCULATION PUMP 3 amp 9 103 5 126 5 103 5 126 5 505 615 RECIRCULATORS 103 5 126 5 103 5 126 5 Note All J1 measurements are made relative to base harness inside processor while module is connected Use needle nose
20. TEMP button on the keypad and rotate the potentiometer until 83 is displayed Once reaching 83 slowly rotate counterclockwise until 82 is achieved The processor s heat control and display can be reviewed FUNCTION MODES FUNCTION CHART page 14 D Chemistry temperature is either too HOT or too COLD and the display pre set is 82 F Analyze the heat control components one by one using the TEST POINT CHART CONNECTOR DIAGRAMS and the SYSTEM SCHEMATIC page 19 1 Check the resistance value of the THERMISTOR PROBE J5 pins 1 amp 3 on thermistor s connector side and refer to the resistance vs temperature chart The measured value on the probe must be within 1 of the chart value If not replace Thermistor probe p n 45970 2 Check the resistance value of the wiring harness for continuity J1 pins 13 amp 14 and refer to the resistance vs temperature chart The measured value must be within 1 of the chart value If NOT inspect the wiring harness for corrosion on connector pins or poor lugging 3 Check the resistance value of the HEATER PAD 0 J4 pins 1 amp 2 on heater s connector side The measured value must be 52 5 60 ohms if NOT replace Heater Pad p n 45950 as shown by the BASE ASSEMBLY HEATER PAD section page 54 4 Check the resistance value of the wiring harness for continuity J1 pins 3 amp 10 The measured value must be must be 52 5 60 ohms If NOT inspect the wiring harness for corrosion on co
21. Wash water runs all the time in STAND BY mode 1 Standard Processor a Check for any dirt or debris buildup in the coil of the solenoid and clean the parts as required in order to allow proper solenoid functioning b Check the electronics integrity using the TEST POINT CHART as follows Check voltage J1 pins 3 amp 9 c If voltage is 103 5 126 5VAC replace the Electronics Module p n 45415 2 Internal Water Recirculator Processor 45009 amp 45009CUL a Check and verify there is NOT a fresh water supply hose connected The water lines are designed to operate from a water container for recirculation page 9 28 TROUBLESHOOTING SECTION 2 AT2000 XR Film Quality Troubleshooting This trouble shooting section is intended for the diagnosis issues relating to film processing anomalies for the AT2000XR film processors The itemized list below is a summary of issues for the complete diagnosis and or repair of the issue exhibiting refer to the subsequent pages as identified NOTE A major problem contributing to poor film processing quality is the contamination of the processor chemistry See AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems T FILMS ARE TOO 2555556 et EE eet Soy 30 Exposure setting incorrect chemistry s not within usage range 2 FILMS ARE TOO LIGHT sessed ue Rie a ots 31 Exposure setting incorrect chemistry s not within usage
22. and Checking of Heating Pad procedure Heater Pad Removal Procedure 1 Drain and rinse chemistry compartments carefully turn the unit over to expose the base assembly and remove the Base Assembly to access the Heater Pad see page 42 item 27 2 Slip the blackwires out of the purse lock tie wrap leave fastener in place to use to hold the black wires of the replacement Heater Pad 3 Disconnect the Circulator Replenisher Drawer remove one 1 Phillips screw flip drawer upside down and lay it to the left onto the internal clear drain hose 4 Disconnect the ground connector green yellow wire from the ground lug on the Heater Pad 5 Remove the four 4 Heater Pad retainer discs unscrew the four 4 Phillips screws Each retainer disk may or may not have a flat washer between it and the post to which it is attached Discard these washers if present and use the washers supplied in the kit when reinstalling the retainer discs 6 Pull the clear developer drain hose up and the orange white and ground wires to the side so that the Heater Pad can easily be removed Note The orientation of the Heater Pad so that the replacement Heater Pad is installed the same way Heater Pad Installation Note Prior to installing the new Heater Pad inspect its electrical resistance It must be between 52 5 and 60 ohms If necessary clean and wipe the tank surfaces that will be in contact with the Heater Pad to be sure that the Heater Pad lies fl
23. be between 52 5 and 60 0 Ohms 6 If the resistance is within this range the Heater Pad is good and the source of the heating problem is something else If the resistance falls outside of this range it is defective 7 Once the Heater Pad assembly is shown defective perform the procedures provided on page 47 to replace the Heater Pad assembly If the problem is not the Heater Pad reconnet wires removed above and replace racks and covers 8 Perform the procedures of TROUBLESHOOTING GUIDE SECTION 1 CHEMISTRY TEMPERATURE CONTROL PROBLEMS provided on page 27 as necessary BLACK WIRES LEADING EDGE OF PURSE LOCK RAD wa HEATER PAD p f CAN z I CLEAR DEVELOPER DRAIN HOSE HEATER PAD RETAINER DISKS GROUND CONNECTOR ORANGE WHITE amp GROUND WIRES T EE d DISK WITH CRITICAL ORIENTATION Note Above illustration shows bottom view of Base Assembly See illustration on page 42 item 27 for Heater Pad location 46 BASE ASSEMBLY Heater Pad P N 45950 Notes Perform the Evaluation and Checking of Heating Pad procedure page 46 prior to replacing Heater Pad The covers and racks have been removed and the Heater Pad plug disconnected from the J4 header per the Evaluation
24. cover electrical cable Press and hold CLEANING MODE and turn ON the power at the same time to run the processor for a few minutes then lift the cover and drain CAUTION Do not turn ON the power when the Developer and Fixer tanks are empty Be sure to remove the washer covering the weep hole in the Wash tank drain tube if you cleaned the Wash tank Save the washer for reuse 7 FINAL RINSE d d L Reinstall the drain tubes and fill the tanks with water Turn ON the processor water supply Turn ON the POWER switch The replenisher pumps will run and purge any Formula 2000 Plus that may have gotten in the replenishment lines Turn OFF the POWER switch after 2 minutes Lift the cover and drain the tanks Drain refill the Developer and Fixer tanks with water and drain again Wipe the Developer and Fixer tanks dry with a paper towel Use a separate towel for each tank Fill the Fixer and Developer tanks with chemistry reinstall the rack assemblies and process a new cleaning film See MONTHLY MAINTENANCE 6 7 8 on page 62 56 DAYLIGHT LOADER IMPORTANT Be sure that the Daylight Loader fits snugly to the front of the processor Process an unexposed film to test for light leaks When processing extra oral films be sure that the sliding cover is closed HARDWARE KIT 43114 HARDWARE LIST Description C Brackets Screws 8 32 x 1 1 4 Flat Washer 8 Lock Washer 8 Nut 8 32 MOUNTING INSTRUCTIO
25. is not stuck on the Developer Transport rack entry roller if so 1 Inspect transport for squareness 2 f Shutter Guard is bent and contacts the transport restore as required to eliminate contact Check the Film Shutter assembly freely pivots and is not jammed Remove Cover Tray for service 1 If difficult to pivot clean shutter hinges with a moist sponge and thoroughly 2 Ifjammed or abnormally bent try to re shape the shutter flag and align as depicted by DETAIL B and DETAIL C in the COVER ASSEMBLY section page 46 With shutter in closed position the flag must be fully inserted into the PCB optic sensor With shutter in open position the flag must be fully out of the PCB optic sensor 3 If Film Shutter is uncorrectable replace the component p n 43584 Check the PROCESS If it s flashing refer to troubleshooting item 2C above 24 TROUBLESHOOTING AT2000 XR Operation amp Function Troubleshooting 4 PROCESSOR STOPS IN MID CYCLE Stops before film exits the dryer A Check for a low voltage condition due to another large motor i e refrigerator compressor on the same circuit If the other motor starts during a process cycle it can draw too much voltage and interrupt the cycle causing the AT2000XR to reset to stand by Ifon a shared circuit relocate to another circuit dedicated circuit to eliminate problem B Check for a temporary power outage End results will be same as in item A
26. probes when for measurements COMPONENT CONNECTOR LIST J1 MODULE CONNECTOR 14 PIN ROUND CONNECTOR ON REAR OF PROCESSOR J2 WATER LEVEL SENSOR 95 DEVELOPER THERMISTOR PROBE J3 DRIVE MOTOR J9 REPLENISHER PUMPS 94 CHEMISTRY HEATER PAD TB4 CIRCULATOR DRAWER 19 SYSTEM SCHEMATIC AT2000XR SYSTEM SCHEMATIC FAN PANEL PIN 43330 ELECTRONICS ASSY PIN 45415 FILM SENSOR PIN 44482 E14 E12 El E8 E7 EQ EIO E2 E5 E4 lt BLU INTERLOCK SWITCH BLK m PIN 45910 WATER LEVEL SENSOR P N 45450 DEVELOPER TERMISTOR PIN 45970 GROUND TERMINAL NEUTRAL TERMINAL REPLENISHER PIN 44265 CIRCULATOR DRAWER PIN 45262 or PIN 45261 w Tank Magnets 20 CONNECTOR DIAGRAMS CONNECTOR COMPARTMENT COVER REMOVE TO ACCESS J2 J3 J4 J5 J1 MEASUREMENTS HERE TO TEST COMPONENT VOLTGAGE RESISTANCE PER j TEST POINT CHART J5 THERMISTOR J2 WATER SENSOR J4 HEATER PAD f 93 21 THERMISTOR RESISTANCE CHART 39 s Ce ams 2 Notes To accurately measure the thermistor s resistance Ohms immerse the probe into a bath of water with known temperature A minimum of 2 minutes immersion time is required to acclimate the probe to the bath Measure the resistance at the connector points F Resistance o f Bath
27. product for detailed operation informaion for the AT2000 XR Film Processor INDICATOR LIGHTS FIG OPERATOR CONTROLS POWER TEMPERATURE ENDO SPEED Illuminates when the POWER switch located on top DISPLAY INDICATOR is in the ON position READY Ge Illuminates when chemistry has reached SET TEMP operating temperature factory Pre set at 82 F 28 C When READY illuminates chemistry is at the TEMPERATURE PROCESS POWER ON proper temperature to process films leche w n when a film has been inserted and is being m transported through the process cycle PROCESSING flashes regularly when the film is feeding past the film inlet shutter and for 5 seconds after the shutter closes When processing extraoral films wait until PROCESSING stops flashing before inserting the next film to prevent films from overlaping When the processor is in a stand by mode ready to accept films for processing the PROCESSING light will not be illuminated When the CLEANING is selected the PROCESSING light flashes short long IMPORTANT ENDO is intended to process a single periapical size film and by default if anoth er film is attempted to process after the shutter closes from the 1st film the process cycle will change to NORMAL Mode KEY PADS ENDO SPEED The arrow indicator to the left of the keypad flashes when the A T 2000XR is in the ENDO SPEED mode Fil
28. the measured voltage is NOT between 103 5 and 126 5VAC replace IEC RFI filter p n 45975 2 PROCESS CYCLE WILL NOT START When inserting a film into film inlet No drive dryer etc A B Check that the Top Cover assembly is seated squarely on the Base If not the interlock switch may not be engaged which will prevent the transport drive motor from running Check the Film Shutter assembly freely pivots and is not jammed Remove Cover Tray for service 1 If difficult to pivot clean shutter hinges with a moist sponge and thoroughly 2 If jammed or abnormally bent try to re shape the shutter flag and align as depicted by DETAIL B and DETAIL in the COVER ASSEMBLY section page 46 With shutter in closed position the flag must be fully inserted into the PCB optic sensor With shutter in open position the flag must be fully out of the PCB optic sensor If Film Shutter is uncorrectable replace the component p n 43584 Check electronics function and using the SYSTEM SCHEMATIC Remove Electronics Module from top cover but leave connected J1 Disconnect J8 green blue yellow wires amp depress the CLEANING CYCLE button on keypad 1 If difficult to pivot clean shutter hinges with a moist sponge and thoroughly 2 If processor DOES NOT start replace Electronics Module p n 45415 3 PROCESS CYCLE WILL NOT STOP Process cycle continues indefinitely A Check the Film Shutter assembly
29. 1 CHEMISTRY AGITATOR PROBLEMS provided on page 26 33 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 7 FILM HAS SPOTS APPEAR DIRTY A Confirm the following initial requirements for AT2000XR Automatic film processing Make sure to use the proper handling of pre processed films The films must not come in contact with any wet surface ie hands counter surface etc and should be handled along edges 1 2 3 4 5 6 Intensifying screens are not worn outdateds and or dirty Film used is designed for Automatic Processing Confirm that a CLEANING FILM has been processed after the READY light illuminates This done at the daily start up and every 2 hours of idle time Chemistry used is designed for roller transport processors Check the wash drain tube DOES NOT have a rubber washer Check the solution levels are at the proper height B Check the TRANSPORT ASSEMBLIES for Caked deposits 1 2 09 Deposits only DEVELOPER TRANSPORT Rack Silver and or gray staining gears Developer chemistry is contaminated Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to clean Deposits only on FIXER TRANSPORT Rack Silver deposits present Fixer chemistry is exhausted Change the chemistry Thoroughly clean the rack assembly per the MAINTENANCE requirements in the USER S MANUAL Confirm the Replenishment Bottles did not run dry if so then change the chemistry and reiterate Moni
30. A T2000 AUTOMATIC FILM PROCESSOR SERVICE MANUAL A Air TECHNIQUES lt Z MLPRO IMAGING FDA GMP COMPLIANT TABLE OF CONTENTS a A Tue am Reha Meal wR eee 3 Product OvervieW CE 4 ue eo SUS eed Cea 5 Plumbing Connections Option 1 Plumbing Connections Option 2 7 Plumbing TEE 8 Water Recirculation Option 9 Major Assemblies and 10 Internal Parts Identification 11 Oper tor rnn e EEN E Sn E on ee 12 FACE ONS Charis 13 Measuring Replenisher Dispensing 18 Electrical Diagrams and Test Points 19 Troubleshooting s sal kese eee tert n BORE edat HOT eana ROS 23 Section 1 Operation and Function Troubleshooting 23 Section 2 Film Quality Troubleshooting 29 Avoiding Chemistry Contamination 37 Gov rn Assembly suso ress r uu E Gu 38 Base
31. AR REPLACEMENT KIT 43736 28 36 60 TOOTH GEARS SPARE PARTS DEVELOPER RACK DEDICATED PARTS PART No DESCRIPTION 43502 END PLATE BLACK 43516 HANDLE FIXER RACK DEDICATED PARTS 43507 END PLATE RED 43516 HANDLE WASH DRY RACK DEDICATED PARTS 41307 INNER AIR BAFFLE FLAT 43512 END PLATE GRAY 43518W PLASTIC ROLLER WASH DRY ONLY 43520 GEAR 60 TOOTH 43526 OUTER AIR BAFFLE U SHAPE DAYLIGHT LOADER COMPONENT PARTS 40153 CUFF ASS Y ONE PER UNIT 40154 CUFF GASKET 40155 CLOTH FILM BAG 43114 HARDWARE PACK FOR MOUNTING 43117 1 FOAM GASKET 44637 VIEW GLASS AMBER 44647 VIEW GLASS RED 45630 COVER W RED VIEW GLASS 59 S Air lechniques and ALLPRO Imaging are leading manufacturers of fine dental medical and veterinary equipment from air and vacuum systems and X ray film processors to an impressive line of new products incorporating the most recent technological advances These new products vital components of the innovative professional practice include intraoral cameras digital imaging systems which utilizes phosphor plate technology and most recently an intraoral digital X ray system using sensor technology Air Techniques and ALLPRO Imaging have been manufacturing quality products for the dental medical and veterinary professional since 1962 Air Techniques and ALLPRO Imaging products are distributed only through authorized dealers Refer to www airtechniques com or www allproim
32. Check that the fan blade s are not stuck on the motor s release if there is interference b Check that the motors operate when the CLEANING MANUAL mode is started if NOT c Check for power at circulator terminal block If voltage is 103 5 126 5VAC TB4 pins 1 amp 2 replace the Circulator Drawer p n 45262 d If voltage is NOT 103 5 126 5VAC replace the Electronics Module p n 45415 26 TROUBLESHOOTING AT2000 XR Operation amp Function Troubleshooting 10 CHEMISTRY TEMPERATURE CONTROL PROBLEMS A Verify the wash water temperature is 55 F 80 F if NOT adjust as required and continue 1 Cooler than 55 F water results in thermal heat transfer from the adjacent Fixer tank 2 Warmer than 80 water results in damaged film and temperature rise in chemistry B Check the room temperature Above 82 F air temperature adds to processor chemistry heating 1 If higher than 82 F exists advise that additional ventilation is required to lower room temp 2 Advise a minimum of 10 room volume air changes per hour are required C Chemistry temperature is either too HOT or too COLD optimum temp setting of 82 F NOT achieved Preview the processor s temperature setting as follows POWER ON push and hold the DISPLAY SET TEMP button on the keypad The value displayed will start flashing if NOT 82 then readjust as follows Open the flip lid on the top side of the Electronics Module push and hold the DISPLAY SET
33. DE doesn t have initial replenishment L Shut OFF the power after two minutes Disconnect the cover electrical cable from the base remove the processor cover and drain all three tanks Thoroughly wipe up any standing water with a clean paper towel or separate sponges Any water remaining in the tanks will dilute the chemistry Reinstall the color coded drain tubes D L 5 MAINTENANCE MONTHLY 5 CLEAN RACK ASSEMBLIES a d d d Place rack assemblies in a large sink thoroughly moisten with Spray 2000 Plus or water then clean with a soft brush or sponge under warm running water Important When cleaning rack assemblies only use a soft bristle brush A hard bristle brush may score and scratch the rollers leaving undesirable markings on the film Do not use soap detergents or abrasive cleaners Rotate the gears and rollers while cleaning Be sure to use a separate soft brush or sponge for each rack Color coded sponges are supplied with each case of Air Techniques Developer and Fixer Thoroughly rinse the racks and drain 6 REFILL THE TANKS WITH CHEMISTRY G d Fill the Fixer tank with fixer to the fill line POUR SLOWLY Do not splash or splatter If fixer is splashed into Developer tank wipe up completely with clean moistened towel or sponge Fill the Developer tank with developer to the fill line POUR SLOWLY Add 2 oz of Starter 7 REINSTALL RACK ASSEMBLIES 3 d d
34. E ASSEMBLY Internal Water Recirculation ITEM DESCRIPTION PART NUMBER 1 Pump Oscillating 45070 2 PCB Internal Recirc Pump Starter 45985 3 Tubing Clear 47347 4 Bushing Grommet 49144 CIRCULATOR DRAWER ASSY MOVE AWAY TO ACCESS RECIRC PUMP 2 SEE DETAIL FOR WIRE CONNECTIONS DETAIL A 6 geg FROM MAIN HARNESS HEH TO RECIRC PUMPPCB 2 48 ROLLER TRANSPORTS gt E oo O2 55 222 lt lt lt 49 FIXER TRANSPORT P N 45505 DEVELOPER TRANSPORT P N45500 ROLLER TRANSPORT PARTS RAISED BOSS ON LEFT END BOTTOM OF BAFFLE MUST PASS BELOW RAISED BOSS ON SIDE PLATE BAFFLE PLATES ES B No PN 45505 ES RACK PN 45500 DESCRIPTION Solenoid Assembly Spacer Washer Drive Gear 14 Tooth 3 16 Thick Shaft Gear Axel Shaft End Plate Modified End Plate Red End Plate Black Space Bar Baffle Plate Flat Baffle Plate U Shaped Spacer Retainer Handle Roller Plastic Roller Rubber Washer White Washer Black Gear 28 Tooth Gear 36 Tooth Gear 60 Tooth Idler Gear 14 Tooth Screw Screw Nylon Spacer Screw 5 ROLLER TRANSPORT PARTS PART NUMBER 43980 43524 43513 43509 43508 43512 43507 43502 41285 43852 43851 43517 43516 43518 43519 41284 41821 43503 43504 43520 43514 30567 30595 45501 31006 MAINTENANCE WEEKLY
35. INSERT WITH LIGHT SEAL MAJOR ASS Y COMPONENT PARTS 45100 45200 45230 45415 45425 45500 45505 45510 45800 LEVELING BASE ASS Y BASE ASS Y STANDARD AT2000XR BASE ASS Y INTERNAL WATER RECIRC ELECTRONICS MODULE STND AT2000XR ELECTRONICS MODULE AT2000XR CUL DEVELOPER RACK ASS Y FIXER RACK ASS Y WASH DRY RACK ASS Y COVER ASS Y ALL AT2000XR s 58 45550 45691 45920 43931 45935 45950 45970 45975 49165 49793 49963 45910 44041 44042 44043 44044 44063 44064 44206 44209 44210 44211 44265 44361 44362 44363 45042 45043 45201 45221 45240 45258 45262 45278 45323 45380 45440 45445 45450 45567 PROCESSOR SPARE PART KITS PART No DESCRIPTION PRESSURE REGULATOR KIT CIRCULATOR DRAWER REPLACE KIT LINE CORD REPLACE 115V IEC PLUG SOLENOID VALVE amp FITTING ASSS KIT REPLENISHER ASSEMBLY WITH CIRCULATOR DRAWER HEATER PAD ASS Y REPLACEMENT KIT THERMISTOR REPLACEMENT KIT EMI RFI FILTER REPLACEMENT IEC POWER ENTRY WATER HOSE POPPET VALVE KIT 2 VALVES amp 2 O RINGS CLAMP TANK DRAIN INTERLOCK SWITCH REPLACE KIT REPLENISHER FIXER OUTLET TUBING RED REPLENISHER DEVELOPER OUTLET TUBING BLK REPLENISHER FIXER INLET TUBING RED REPLENISHER DEVELOPER INLET TUBING BLK DEVELOPER TUBE amp CAP ASS Y FIXER TUBE amp CAP ASS Y DRAIN MANIFOLD MOLDED TUBING DEVELOPER DRAIN TUBING FIXER DRAIN TUBING WATER DRAIN REPLENISHER ASS Y DRAIN HOSE DE
36. NOT 103 5 126 5VAC replace the pump Starter Circuit PCB p n 45985 B Wash water intermittently runs ON and OFF Standard Processor 1 Standard Processor Check that the water drain hose is properly installed in drain see PLUMBING page 6 Improper drainage causes water to rise setting off water level sensor fault and turning the water off As water partially drains the water level sensor fault clears and water flow resumes b Check solenoid valve filter screen Turn OFF water supply before inspecting If clogged or dirty clean as required c Check that the water drain hose and or drain tube is NOT clogged d Check the water drain tube DOES NOT have a rubber washer e Check the water supply pressure If above 60psi install pressure regulator p n 45550 C Wash water does not fill in 2 minutes from empty tank 1 Standard Processor Check the water supply pressure If below 30psi a LOW pressure condition exists which will not dispense 2 gal min rate requirement 2 Internal Water Recirculator Processor 45009 amp 45009CUL a Check that the water drain hose is properly installed in drain see PLUMBING page 9 b Refer to Electrical Diagrams and Test Points on page 19 and check the Water Recirculation Pump integrity as follows Check voltage J1 pins 3 amp 9 If voltage is 103 5 126 5VAC replace the Recirculation Pump p n 45070 If voltage is NOT 103 5 126 5VAC replace the pump Starter Circuit PCB p n 45985 D
37. NS Remove the existing nuts and screws from the film inlet discard this hardware and reassemble as shown below with the parts provided 57 SPARE PARTS PART No 29207 30539 30550 30552 30562 30568 30569 41286 41914 43189 43220 43232 43233 43238 1 43258 43259 43270 43271 43286 43287 43357 43384 43385 43578 43859 43885 43980 44039 DESCRIPTION CABLE CLAMP SCREW GEAR COVER SCREW BOTTOM PLATE THUMB SCREW CIRCULATOR COVER SCREW ELECTRICAL COVER SCREW GEAR COVER SCREW DRIVE BLOCK MOUNT TEFLON WASHER FUSE SLO BLO 8 AMP 5 WASH TANK DRAIN TUBE PLUG KIT MOTOR CRCULATOR AGITATOR BUSHING AGITATOR MAGNET FILM FEEDER GUIDE BLOCK GEAR COVER MOLDED ELECTRICAL COMPARTMENT COVER DRAIN TUBE ASS Y WASH DRAIN TUBE WASHER DRAIN TUBE ASS Y DEVELOPER BLACK DRAIN TUBE ASS Y FIXER RED DRAIN HOSE STRAP DEVELOPER AGITATOR COVER BLACK DEVELOPER AGITATOR COVER BLACK FAN CIRCULATOR MOTOR HEATER PAD HOLD DOWN BOTTOM PLATE SOLENOID VALVE NO FLOW RESTRICTOR REPLENISHER TUBING CLAMP COVER ASSEMBLY COMPONENT PARTS 43309 1 43330 43343 1 43530 43584 43587 43658 43811 44422 44482 45301 45351 FILM RECEPTACLE DIVIDER DRYER HEATER AND FAN PANEL ASS Y CABLE ASS Y DENTAL FAN PANEL DRYER FAN FILM SHUTTER ASS Y HINGE BLOCK MOLDED SHUTTER GUARD AIR HEATER ASS Y POWER SWITCH FILM SENSOR ASS Y MOLDED COVER W HARDWARE INSERTS COVER
38. RT NUMBER 1 Electonics Module 45415 2 Dryer Heater Assembly 43330 3 Dryer Fan 43530 4 Air Heater Assembly 43811 5 Molded Cover 45360 6 Cover Insert w Light Seal 45351 7 Shutter Assembly 43584 8 Film Sensor Assembly 44482 9 Shutter Guard 43658 10 Hinge Block 43587 11 Interlock Switch Assembly 45910 12 Vapor Barrier 43121 13 Grommet 43122 UNDERSIDE VIEW OF COVER Note Use this screw to mount vapor plate under heater Detail 7 amp 9 See Details B amp C on page 40 11 under cover 38 COVER ASSEMBLY DETAIL B DETAIL C Film Sensor Optic Switch Adjustment Screws for PCB Cross Section View NOTE Film shutter flag item 7 must reside in optic sensor on PCB when inactive see detail C for view Improper alignment results in STAYS INPROCESS MODE DETAIL D Assembled Interlock Main Bracket Switch and Bracket Switch P N 45331 Assembly P N 94312 Item 11 P N 45910 2 56 x 5 16 Screw P PIN 305831 Sx 4 40 x 7 16 Screw y 2 31331 Front Plate P N 45332 NOTE The illustrations above represent the Interlock Switch Assembly design for all AT2000XR Film Processors It superseeds any previous version designed and is a drop in replacement to all vintage units The actual switch is the same part in all units onlt the mounting bracket and hardware may differ 39 BASE ASSEMBLY VIEW OVERHEAD VIEW
39. SIDE SINGLE FUSE CONFIGURATION 42 BASE ASSEMBLY VIEW Solenoid Assembly Fuse Holder Line Cord IEC Connector w EMI Filter Fuse Delayed Action 8 Amp Box of 5 Mounting Panel Fuse Double Fuse Mount s n 460457 amp up Mounting Panel Fuse Single Fuse Mount up to s n 460456 Replenisher Tubing Clamp Cable Clamp Base Sub Assembly Poppet Valve Kit inudes 2 valves amp 2 O Rings Receptacle 3 Pin Connector Plug Water Inlet Tube Assembly Heater Pad Hold Down Replenisher Fixer Inlet Tubing Red 96 inches 8 feet Replenisher Fixer Outlet Tubing Red 18 inches Replenisher Developer Inlet Tubing Black 96 inches 8 feet Replinisher Developer Outlet Tubing Black 26 inches Replenisher Assembly Tubing Developer Drain 36 inches Tubing Fixer Drain 12 1 2 inches Tubing Water Drain 9 3 4 inches Clamp Tank Drain Drain Manifold Molded Drain Hose Strap Bottom Plate not illustrated Screw Bottom Plate not illustrated Drain Hose Developer Black 72 inches 6 feet Drain Hose Fixer Red 72 inches 6 feet Drain Hose Water White 72 inches 6 feet Silicone Heater Pad Assembly Exterior IEC Mounting Plate Interior IEC Mounting Plate Terminal Block Mounting Plate Screw Nylon Push Rivet Screw Screw Screw Screw Screw Screw Nut Replenisher Pump Elbow Rplenisher Pump 43 DESCRIPTION PART NUMBER 43980 90219 45975 41914 45278 45258 44039 41771
40. TANDPIPE DRAIN INSTALLATION INCORRECT CORRECT il e Drain hoses must fit loosely into PVC standpipe to allow drain ventilation PLUMBING CONNECTIONS CONNECT TO PLUMBING See Plumbing Connections OPTIONS 1 amp 2 1 Match color coded drain hoses to corresponding color coded label on barbed fittings at the rear of the unit Mount the hose end onto the barbed fitting by rotating the hose clockwise while pushing Push the hose flush up against the barbed fitting leaving no space If removal of the hose is necessary rotate clockwise while pulling the hose No clamps are required as the hose is self clamping 1 If routing the drain lines replenishment lines and water inlet hose through the counter top drill a 2 1 2 diameter hole through the countertop See Plumbing Connection illustrations For routing replenishment lines through the counter unscrew the retain ing nut under cap to remove the cap assembly Cut the replenishment lines to appro priate length OPTION 1 Route water white drain hose to a vertical 1 1 2 PVC standpipe Route Developer black and Fixer red drain hoses to chemistry recovery con tainers under the counter OPTION 2 Route all three drain hoses into a vertical 1 1 2 PVC standpipe NOTE Hoses must always slope downward to drain pipe or recovery containers without any U s or upward bends in the hose Hoses routed into the drain pipe must be cut so that the ends are at a min 6 above the
41. Temp Thermistor Bath Temp Thermistor Bath Temp Thermistor F Resistance F Resistance F Resistance Any other resistance value found at the corresponding temperature which is not within the high and low limit curves is considered Out of Spec and deemed faulty THERMISTOR CURVE TRACKING 0 9 F 9 8 7 6 wi DA 5 4 3 c 2 1 0 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 TEMPERATURE F 22 TROUBLESHOOTING AT2000 XR troubleshooting guide is provided in two categories for quick access to problems that are specifically electro mechanical in nature and problems specifically relating to film quality Other equipment faults can also be resolved using the troubleshooting section provided in the processor User s Manual Section 1 Intended for the diagnosis and or repair of faults relating to electro mechanical operation function for the AT2000 XR Film Processor The itemized list below is a summary of those issues considered for the complete diagnosis and or repair of the issue exhibiting refer to the subsequent pages as identified Section 2 Intended for the diagnosis and or corrective actions of film quality component staining and chemistry issues Refer to page 29 for a summary of section 2 filim troubleshooting SECTION 1 AT2000 XR Operation amp Function Troubles
42. VELOPER BLACK DRAIN HOSE FIXER RED DRAIN HOSE WATER WHITE RIGHT ANGLE CAP DEVELOPER REPLENISHER LOCKING RING FOR P N 45042 BASE W HARDWARE INSERTS amp DRAIN ELBOWS WATER INLET J TUBE DRIVE BLOCK ASS Y PLATE SINGLE FUSE HOLDER CIRCULATOR DRAWER ASS Y PLATE DUAL FUSE HOLDER STANDOFF INTERLOCK ACTUATOR FILM INLET ASS Y INCLUDES P N 45567 amp 43238 1 BASE WIRING HARNESS COMPLETE CONNECTOR PLATE ETCHED WATER LEVEL SENSOR FILTER INLET SILKSCREENED DRIVE BLOCK COMPONENT PARTS PART No DESCRIPTION 41127 SNAP RING 43223 DRIVE SHAFT CLAMP BLACK 43241M DRIVE BLOCK MACHINED 43242 DRIVE SHAFT 43243 DRIVER GEAR 12 TOOTH 43244 BEARING DRIVE SHAFT 43246 DRIVE SHAFT CLAMP RED 43247 DRIVE CHAIN 43253 DRIVE MOTOR MOUNTING PLATE 43254 RACK LATCH BLACK 43255 RACK LATCH RED 43256 RACK LATCH NATURAL 44275 CAPACITOR DRIVE MOTOR 45472 DRIVE MOTOR ASS Y RACK ASSEMBY COMMON PARTS PART No DESCRIPTION 30567 SCREW 30595 SCREW DEVELOPER amp FIXER RACKS ONLY 31006 SCREW 41284 RUBBER ROLLER SPACER WHITE 41285 SPACER BAR 41292 IDLER GEAR 14 TOOTH 41821 RUBBER ROLLER SPACER BLACK 43503 GEAR 28 TOOTH 43504 GEAR 36 TOOTH 43508 AXLE SHAFT 43509 SHAFT GEAR 24 TOOTH 43513 DRIVE GEAR 14 TOOTH 43517 SPACER RETAINER 43518 PLASTIC ROLLER 43519 RUBBER ROLLER 43524 SPACER WASHER 43527 GUIDE ROLLER 45501 NYLON SPACER RACK ASSEMBY PART KITS 43694 GEAR REPLACEMENT KIT 14 TOOTH GEAR GE
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44. are to sample the replenishment rate with the stopwatch Position the end of the drain hose into the 250ml beaker ready the stopwatch turn the power switch ON and start the stopwatch together Atthe end of the initial replenishment cycle 90 seconds turn power switch OFF and view the liquid volume in the beaker The replenished volume must be between 120ml to 130ml Reinstall the developer drain hose in its catch Check Fixer Pumping rate 1 2 Repeat the developer replenishment procedure except use the fixer red drain hose The replenished volume must be between 120ml and 130ml DONE ELECTRICAL DIAGRAMS AND TEST POINTS AT2000 XR Electrical Diagrams amp Test Points Wiring test point and thermistor resistance information for the AT2000 XR Film Processor is provided in this section The associated charts diagrams identify all serviceable features and provide the required parameters to facilitate equipment troubleshooting Refer to the appropriate information as required to quickly identify and resolve the equipment fault issue TESRPOINT CHARE 24 moe uot Ee 19 Q SYSTEM SCHEMATIC lee wei eure pha 20 1 CONNECTOR DIAGRAMS 21 1 THERMISTOR RESISTANCE 22 The following test point chart lists the test point and expected voltage and resistance value for the associated component of the AT 2000 XR
45. at on these surfaces for optimum heat transfer 1 Install the replacement Heater Pad in the reverse sequence that the old one was removed Be sure first to slip the leading edge under the chemistry replenishment fittings and avoid bending or flexing the Heater Pad Pull the clear developer drain hose up and work the orange white and ground wires around the Heater Pad corner to allow the Heater Pad to be lowered into place without bending or flexing it The leading edge is the one that has the black wires and ground lug to its left when viewed from the orange side 2 Carefully place the four 4 washers supplied with the kit on the four 4 attachment posts and then reinstall the four 4 Heater Pad retainer discs onto the posts with the washers Be sure that washers do not fall off while installing the retaining discs The only disc whose orientation is critical is the one nearest the developer drain elbow Rotate the disc so that the notch aligns with the gate on the molded base and the corresponding hole in the Heater Pad 3 Reinstall and securely tighten the four 4 Phillips screws holding the Heater Pad retaining discs 4 Reinstall ground wire to ground lug on Heater Pad Secure the two 2 black wires into the purse lock tie wrap Install Base Assembly 6 Reconnect the Heater Pad plug into the J4 header located on the Connector Mounting Plate page 21 Refill tanks with chemistry and replace racks and covers e 47 BAS
46. c film processing 1 Film is not outdated within manufacturers recommended processing life or defective 2 Film used is designed for Automatic Processing 3 Chemistry is not contaminated amp within recommended useful life Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 4 WASH WATER is above 55 F 5 WASH WATER is ON valve is open B Check the chemistry temperature for being too COLD optimum temp setting of 82 F NOT achieved Preview the processor s temperature setting as follows POWER ON push and hold the DISPLAY SET TEMP button on the keypad The value displayed will start flashing if NOT 82 then perform re adjustment as follows 1 Open the flip lid on the top side of the Electronics Module push and hold the DISPLAY SET TEMP button on the keypad and rotate the potentiometer until 83 is displayed 2 Once reaching 83 slowly rotate counterclockwise until 82 F is achieved The processor s heat control amp display can be reviewed FUNCTION MODES FUNCTION CHART page 15 3 If chemistry temperature is below 82 F and the display pre set is 82 F Analyze the heat control components the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 CHEMISTRY TEMPERATURE CONTROL PROBLEMS Item D provided on page 27 C Check the CHEMISTRY REPLENISHMENT level control and pumping rate 1 Inspect the fixer Drain Tube washer condition Must be in good condition amp seats well 2 Ana
47. cedure if it is not within that range Turn the unit s power switch OFF and unplug the processor from the outlet Important Avoid spillage or cross contamination of chemistry Gain access to the processor chemistry drain lines each will have to be removed from respective drain catches to perform this procedure and then reinstalled upon completion Confirm that there is an adequate amount of replenishment chemistry in the replenishment containers bottles and that the processor chemistry level is at or near the overflow tube weir level before proceeding If any of the levels are low fill to required levels Check Developer Pumping rate 1 6 Remove the developer black drain hose from is drain catch and position it where the sample to be measured can be collected with the beaker Be sure that the drain hose does not have any uphill bends in it the hose should be on a continuous downward slope or at worst lying horizontally flat between the processor and the open drain hose end Plug the processor line cord into the outlet and position the open end of the drain hose into the 250ml beaker Turn the power switch ON wait for the initial replenishment pumping of chemistry to be completed This takes 90 seconds This ensures that the liquid in the processor is at its high and overflow level and the liquid in the drain line has been primed Turn power switch OFF discard the chemistry in the beaker and prep
48. e 11 KNOCKING THUMPING NOISES DURING PROCESS CYCLE 27 Transport and or drive train is jammed or out of adjustment 12 WASH WATER PROBLEMS 22 abe pes 28 Water solenoid does not turn ON or OFF or intermittent ON amp OFF 23 TROUBLESHOOTING AT2000 XR Operation amp Function Troubleshooting 1 PROCESSOR IS TOTALLY INACTIVE No Lights A B C D E Check that the power switch is turned ON Check that the line cord is connected both the Base amp wall outlet Check that the Electronics Module cable connector J1 is properly attached Check the fuse If blown replace with 8 250V 5mm Slow Blow type p n 41914 Check for loose connections and or wires in Base and using the TEST POINT CHART on page 19 1 Check the voltage at connector J1 pins 1 amp 3 on the Base If the voltage is between 103 5 and 126 5VAC replace Electronics Module p n 45415 2 If voltage is detected check the output side of the IEC RFI filter for voltage Unplug the line cord from the processor remove the two fastening screws and slide out the IEC RFI filter Plug line cord back into the filter and check for voltage across the black hot and white neutral leads a If the measured voltage is between 103 5 126 5VAC unplug line cord and check for continuity between black hot on filter amp pin 1 J1 and continuity between white neutral on filter and pin 3 at J1 b If
49. e the Fixer Developer and sun qas bushing Wash tank drain tubes and completely drain the Keyed Bearing PIN 43232 tanks Replace the color coded drain tubes fill Shaft all three tanks with warm water then drain Repeat this drain fill drain sequence 4 times all Agitator Assembly together 1 Locate the chemistry agitators in the bottom of the Fixer and Developer tanks These agitators mix the chemistry in the tanks preventing crystallization and optimizing chemistry performance To make sure that the agitators move freely and to prevent the agitator screws from seizing the agitators must be disassembled and cleaned regularly Remove the thumb screw plastic cap magnet washer and ceramic post Clean all the parts with Spray 2000 Plus and warm water Rinse thoroughly and set aside While the chemistry agitators are disassembled wipe down the tanks with sponges to eliminate any chemistry residue Use a separate sponge for each tank Reassemble the chemistry agitators as shown in Agitator Assembly drawing above Refill all tanks with warm water to the fill line Reinstall the drain tubes Fill all the tanks with warm water to the fill line 4 FLUSH AGITATORS Replace the processor cover reconnect the cover electrical cable to the base press and hold CLEANING MODE and turn ON the power at the same time When CLEANING MODE is pressed the agitators rotate and are rinsed by the warm water in the tanks CLEANING MO
50. eck sequence listed in TROUBLESHOOTING GUIDE SECTTION 1 WASH WATER PROBLEMS provided on page 28 D Check the CHEMISTRY REPLENISHMENT level control and pumping rate 1 Inspect the fixer Drain Tube washer condition Must be in good condition amp seats well Analyze the chemistry replenishment for insufficient amounts per the check sequence listed in TROU BLESHOOTING GUIDE SECTION 1 REPLENISHER PUMP PROBLEMS provided on page 26 E Check the air temperature and air movement exiting the dryer at the film exit by verifying that the air exiting is warm and blowing out If not perform procedures listed in TROUBLESHOOTING GUIDE SECTION 1 DRYER FAN AIR HEATER PROBLEMS provided on page 26 35 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 11 FILM EMULSION IS PEELING OFF A Confirm the following initial requirements for AT2000XR Automatic film processing 1 2 3 4 Film is not outdated within manufacturer s recommended processing life or defective Chemistry is not contaminated amp within recommended useful life WASH WATER temperature is below 55 to 80 F Film used is designed for Automatic Processing B Check the CHEMISTRY REPLENISHMENT level control and pumping rate 1 2 3 Inspect the both developer amp fixer Drain Tube washer condition Must be in good condition Rubber washers present amp in good shape and inner bore is unobstucted Confirm the both developer amp fixer Drain Tubes firml
51. ed before the Outer Baffle 36 AVOIDING CHEMISTRY CONTAMINATION Contamination of developer chemistry is one of the most common problems associated with x ray film processors The source of contamination must be identified to prevent this problem from happening again Once contaminated developer is diagnosed tanks and rack assemblies must be cleaned with Formula 2000 Plus Part Number 43965 See Quarterly Cleaning pages 63 and 64 for proper cleaning procedure How To Diagnose Contaminated Developer One or more of these symptoms indicates contamination Ammonia smell Dark or black developer Black deposits on bottom of developer tank Gray stains on white gears on side of developer rack Black streaks or smudges on films Poor film density blacks are only dark gray Poor film clarity Sources of Contaminated Developer One or more of these actions can cause contamination 1 Splashing a drop of fixer into Developer tank when filling Fixer tank 2 Dripping a drop of fixer into the Developer tank when removing racks for cleaning 3 Washing both Developer and Fixer tanks with the same sponge or same brush Use separate sponges or brushes for each tank 4 Failing to thoroughly rinse off Spray 2000 Plus when cleaning rack assemblies 5 Use of soap detergents etc to clean racks or tanks Only use recommended cleaner 6 Use of Spray 2000 Plus to clean the Developer tank Only use on racks since it is very d
52. ed is designed for Automatic Processing Film screen combination is correct per manufacturer s specifications Films are PROCESSED AFTER READY LIGHT ILLUMINATES Chemistry used is designed for roller transport processors o N B Check the chemistry agitators freely spins chemistry circulation Disassemble the agitator assemblies as depicted in the BASE ASSEMBLY section page 48 Analyze the agitator per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 CHEMISTRY AGITATOR PROBLEMS C Check the chemistry temperature for being too COLD temp setting of 82 F NOT achieved Preview the processor s temperature setting as follows POWER ON push and hold the DISPLAY SET TEMP button on the keypad The value displayed will start flashing if NOT 82 then a readjustment must be made as follows 1 Open the flip lid on the top side of the Electronics Module push and hold the DISPLAY SET TEMP button on the keypad and rotate the potentiometer until 83 is displayed 2 Once reaching 83 slowly rotate counterclockwise until 82 F is achieved The processor s heat control amp display can be reviewed FUNCTION MODES FUNCTION CHART page 15 3 If chemistry temperature is below 82 F and the display pre set is 82 F Analyze the heat control components per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 CHEMISTRY TEMPERATURE CONTROL PROBLEMS Item D provided on page 27 D Check the CHEMISTRY REPLENISHMENT le
53. ge is NOT 103 5 126 5VAC replace Electronics Module p n 45415 E Check the interlock switch functionality by verifying continuty between the switch leads when tripped Refer to the SYSTEM SCHEMATIC page 20 to test at J10 pins 1 amp 2 25 TROUBLESHOOTING AT2000 XR Operation amp Function Troubleshooting 7 DRYER FAN AIR HEATER PROBLEMS A Fan motor is not operating Check the electronics function and using the SYSTEM SCHEMATIC page 20 Remove Electronics Module from top cover but leave connected J1 Disconnect J7 black white green wires connector and measure voltage output 1 If voltage is 103 5 126 5VAC replace the Fan Panel Assembly p n 43330 2 If voltage is NOT 103 5 126 5VAC replace Electronics Module p n 45415 B Fan is operating but blows cool air Check connections between Air Heater amp Fan by removing the Fan Panel Assembly as depicted in the COVER ASSEMBLY section page 45 1 If connections are valid replace the Air Heater p n 43811 8 REPLENISHER PUMP PROBLEMS A Replenisher pumps not pumping Remove the Circulator Drawer screw and slide the assembly out of the Base and using the TEST POINT CHART amp SYSTEM SCHEMATIC check if it functions as follows Turn power OFF wait 5 seconds then turn power ON Pump is intended to run for 90 seconds see REPLENISHER RATES FUNCTION CHART page 17 1 If pump does NOT operate check the J9 connector is properly attached and continue on 2
54. he chemistry is approximately 0 7 F min 1 F min The actual heating of chemistry may be different due to thermal inertia HEATER POWER PERCENTAGE For Heating rate SEE NOTE 1 s ue x s o x s s u x s o uo NN 20 LAMP FLASHES SEE NOTE 4 SEE NOTE 3 20 SEE NOTE 4 30 SEE NOTE 4 40 SEE NOTE 4 50 SEE NOTE 4 60 SEE NOTE 4 70 SEE NOTE 4 80 SEE NOTE 4 90 SEE NOTE 4 0 44 F min 1 F min is a selected reduced power control condition to prevent temperature overshoot Set point 82 F A D count 118 1 Volt ON flash duration is proportionate to the HEATING POWER percentage 100 HEATER POWER for 1 minute when processor power is turn ON each time the ADC changes increases as temperature drops and every 4 minutes if temperature is below set point and ADC does not change DEVELOPER NEON TEST LAMP Placed Across A D Count Leads of Heater 84 114 84 115 83 116 83 117 82 118 SEE NOTE 2 82 119 81 120 LAMP FLASHES 80 121 LAMP FLASHES 80 122 LAMP FLASHES 79 123 LAMP FLASHES 79 124 LAMP FLASHES 78 125 LAMP FLASHES 78 126 LAMP FLASHES 77 127 LAMP FLASHES LAMP ON STEADY 77 128 76 to 32 Notes 2 3 4 LAMP ON STEADY FUNCTION CHARTS REPLENISHER RATES FOR DEVELOPER AND FIXER STANDARD DOMESTIC AT2000 XR FILM PROCESSOR FILM SHUTTER PUMP LENGTH Open Time FLUID POWER Tu
55. hniques Developer and Fixer 3 REINSTALL RACK ASSEMBLIES E d d Slowly lower each rack into its tank Match color coded end plates to color coded latches Do not splash fixer into Developer tank when installing Fixer rack Close all the latches 4 PROCESS A CLEANING FILM d d Turn ON the power Always process a new cleaning film after cleaning the rack assemblies at NOR MAL SPEED after READY light illuminates 52 MAINTENANCE MONTHLY MONTHLY CHANGE CHEMISTRY If the bottom of the Developer tank is coated with black residue and or the white gears on the side of the Developer rack are stained grey or black the developer has been contaminated The Developer tank and rack must be cleaned with Formula 2000 Plus Caution Do not turn ON power when the Developer and Fixer tanks are empty Turn on the POWER switch OFF before removing the cover the rack assemblies or disconnecting any electrical cables Important Do not use Formula 2000 Plus in Fixer Tank 1 REMOVE COVER L Disconnect the cover electrical cable from the processor base and remove the cover Thumb Screw P N 30552 2 REMOVE RACK ASSEMBLIES KR LJ Remove all the rack assemblies taking care not E 29 to drip fixer into the Developer tank Red PIN 43385 3 DRAIN AND CLEAN TANKS Z Magnet Caution Be sure to dispose of any chemistry and chem 2 2 Teflon Washers istry laden water in accordance with local codes P N 41286 Unscrew remov
56. hooting Diagnosis of Electro Mechanical Components Note To assure proper diagnosis and servicing of the AT2000XR it is strongly recommended that the use of all charts and diagrams provided in this manual accompany the service performed as required 1 PROCESSOR IS TOTALLY INACTIVE eae ie 24 No Lights or activity with power switch ON 2 PROCESS CYCLE WILL NOT START 24 Film shutter not activating when inserting a film No Drive Dryer Etc 9 PROCESSOR DOES NOT STOP nes E 24 Process cycle continues indefinitely 4 PROCESSOR STOPS MID CY CLE 25 Process cycle stops before film exits 5 DRIVE MOTOR NORMAL SPEED DOES RUN 25 Motor does not function in NORMAL speed mode 6 DRIVE MOTOR ENDO SPEED DOES NOT RUN 25 Motor does not function in ENDO speed mode 7 DRYER HEATER PROBLEMS 26 Fan motor not working or blows cool air 8 REPLENISHER PUMP PROBLEMS 26 Replenisher not operating not suctioning using too much chemistry 9 CHEMISTRY AGITATOR PROBLEMS 26 Agitators not spinning clogged motors not running 10 CHEMISTRY TEMPERATURE CONTROL PROBLEMS 27 Chemistry not at 82 and or display reads error cod
57. ifficult to thoroughly rinse Spray 2000 Plus out of tanks thereby contaminating new chemistry 7 Running of endo films back through the processor Endo films are never properly washed and contain enough fixer residue to contaminate the Developer tank 8 Use of a cleaning film more than once or use of one that looks dirty do not reuse cleaning film 9 Scrubbing of cleaning film with soap and water so it can be used again do not reuse cleaning film 10 Running of cleaning film at ENDO speed then reusing cleaning film do not reuse cleaning film 11 Running of cleaning film with wash water turned OFF then reusing cleaning film do not reuse cleaning film 12 Failing to thoroughly rinse developer tank after using Formula 2000 Plus including for getting to run developer agitator while rinsing 13 Failing to purge replenishment lines after using Formula 2000 Plus 14 Incorrectly installed drain lines 15 Accidentally bumping processor causing fixer to spill over into the Developer tank 16 Interchanging replenishment bottles connecting fixer to developer and developer to fixer Use 4 gallons of warm water to clean out pumps and lines 17 Mixing different brands of chemistry together Example Brand A in the tanks Brand B in replenishment bottles NOTE IF CHEMISTRY IS Contaminated FOLLOW CLEANING PROCEDURE DETAILED IN QUARTERLY CLEANING PAGES 55 and 56 37 COVER ASSEMBLY COVER ASSEMBLY 45800 ITEM DESCRIPTION PA
58. ilm jams films stuck in racks if so Allieviate the jam as necessary to get the rack s working 27 TROUBLESHOOTING AT2000 XR Operation amp Function Troubleshooting 12 WASH WATER PROBLEMS A Wash water does not fill into tank in process mode 1 Standard Processor a Check that the water hose is connected amp water supply is opened to processor b Check solenoid valve filter screen Turn OFF water supply amp disconnect the water hose to check If clogged or dirty clean as required c Check the Water Sensor integrity using the TEST POINT CHART amp CONNECTOR DIAGRAMS Remove the J9 connector turn POWER ON and depress the Film Shutter If the water begins to flow replace Water Sensor p n 45450 otherwise d Check the Solenoid Valve integrity using the TEST POINT CHART as follows Check voltage J1 pins 3 amp 9 If voltage is 103 5 126 5VAC replace the Solenoid Valve p n 43980 e If voltage is NOT 103 5 126 5VAC replace the Electronics Module p n 45415 2 Internal Water Recirculator Processor 45009 amp 45009CUL a Check that the water inlet hose reaches down BELOW the water level in the container b Check that the water drain hose is properly installed in drain see PLUMBING page 9 c Check the Water Recirculation Pump integrity using the TEST POINT CHART as follows Check voltage J1 pins 3 amp 9 If voltage is 103 5 126 5VAC replace the Recirulation Pump p n 45070 d If voltage is
59. l drain sequence 4 times all together 1 Wash tank 1 If the Wash tank is not dirty or shows no evidence of contamination reinstall the drain tube and the Wash Dry rack assembly 2 If the Wash tank is dirty or contaminated cleaning with Formula 2000 Plus is recommended 3 Follow the same procedure as for the Developer tank as described below but it is necessary to block the drain tube weep hole with the special washer that is included with the processor This washer prevents the tank from draining during cleaning When cleaning is completed remember to remove the washer and save it for reuse Caution NEVER USE FORMULA 2000 PLUS IN THE FIXER TANK L Fixer Tank Install the Fixer tank drain tube fill the Fixer tank with water install the rack assembly Developer tank Install the drain tube 1 Pour Formula 2000 Plus Component 1 into the empty Developer tank 2 Fill the tank with cold water to the fill line 3 Cut open the Formula 2000 Plus Component 2 powder packet and sprinkle the contents evenly over the tank The effervescent action of Formula 2000 Plus will begin as soon as Component 2 is added Some odor and vapor will be evident Do this in a well ventilated area 4 Before placing the Developer rack in the tank dip each end into the Formula 2000 Plus solution to dissolve any build up and deposits on the gears and end plates 1 Replace the cover and reconnect the cover electrical cord to the processor base
60. l view of assembly in the ROLLER TRANSPORT PARTS illustration page 50 and note that the Inner Baffle is installed before the Outer Baffle 32 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 5 FILM HAS STREAKING CONSISTENTLY REPEATING A Confirm the following initial requirements for AT2000XR Automatic film processing 1 Chemistry is not contaminated and within recommended useful life Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 2 Film used is designed for Automatic Processing 3 Confirm that a CLEANING FILM has been processed after the READY light illuminates This is done at the daily start up and every 2 hours of idle time 4 Check the wash drain tube and verify it DOES NOT have a rubber washer 5 Check the solution levels are at the proper height 6 Check amp verify the drive motor continually runs during a processing cycle B Check the leveiness of the processor by making sure that the leveling frame Bubble indicates proper level of unit adjust feet as necessary C Check the cleanliness of the Transport Racks Clean the racks if necessary per the MAINTENANCE requirements in the USER S MANUAL D Check the squareness of the Transport Racks 1 Place a transport rack independently onto a FLAT amp LEVEL surface the rack should rest evenly on it s side plates If it does not loosen but don t remove the screws and twist the rack assembly to get it to sit flush
61. lved 3 4 male garden hose fitting near rear of processor 6 hose with standard female garden hose fittings provided A vacuum breaker is not normally required because the proces sor has a 1 air gap between water supply inlet and the maximum possible water level height 55 F 13 C to 80 F 27 C 1 1 2 vertical PVC standpipe open at top DO NOT DRAIN INTO COPPER OR BRASS The top of the standpipe must be 6 below the bottom of the countertop 18 H x 15 W x 25 D with leveling base 90 165 with water and chemistry 75 105 empty Room air temperature must be below 80 F 27 C during pro cessing Because heat is generated during processing adequate ventilation is required to maintain darkroom temperature 8 12 volume room air changes per hour 22 Height 16 gt lt 4 Minimum Clearance A 23 1 2 DIMENSIOND PLUMBING CONNECTIONS OPTION 1 Chemistry recovery and wash water sewer disposal connection If permitted by local code FRESH WATER VALVE x DEVELOPER Gi DRAIN HOSE BLACK 6 FT WATER INLET HOSE HOSE RED U U 2 DRAIN HOSES MUST SLOPE 1 5 lt DOWNWARDS WITHOUT ANY We SS U s OR UPWARD BENDS WASH WATER Ee BI DRAIN HOSE L Bs WHITE aww E A Ww Seel CKKKKKLILLLLLLLLLLLLLLLLLLLLLLLILLILLL I aa a a e a a a C A a DEVELOPER REPLENISHMENT LINE BLACK El 6
62. lyze the chemistry replenishment for insufficient amounts per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 REPLENISHER PUMP PROBLEMS provided on page 26 D Check the FIXER Agitator freely spins chemistry circulation 1 Disassemble the agitator assemblies as shown by the BASE ASSEMBLY section page 48 2 Analyze the agitator per the check sequence listed in the TROUBLESHOOTING GUIDE SECTION 1 CHEMISTRY AGITATOR PROBLEMS provided on page 26 10 FILM IS WET TACKY AFTER PROCESSING A Confirm the following initial requirements for AT2000XR Automatic film processing 1 Film is not outdated within manufacturer s recommended processing life or defective 2 Film used is designed for Automatic Processing 3 Chemistry is not contaminated amp within recommended useful life Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 4 Chemistry used is designed for roller transport processors 5 The room should be properly vented and below 80 F 6 Verify there is a minimum of 10 room volume air changes per hour in the room B Check the baffles in the Wash Dry rack verify they are installed correctly Refer to the detail view of assembly in the ROLLER TRANSPORT PARTS illustration page 50 and note that the Inner Baffle is installed before the Outer Baffle C Check the WASH WATER for inadequate or no flow of water into wash tank by analyzing the wash water for insufficient amounts per the ch
63. m is processed in 2 1 2 minutes NORMAL SPEED The arrow indicator to the left of the keypad illuminates steady when the A T 2000XR is in the NORMAL mode Film is processed in 5 1 2 minutes DISPLAY SET TEMP The selected chemistry set point temperature flashes on the TEMPERATURE display when the keypad is pressed and held Otherwise the TEMPERATURE display indicates actual chemistry temperature If the keypad is pressed and the display does not flash a different value the set point and actual chemistry temperatures are the same and READY is illumi nated If this is not the case see TROUBLE SHOOTING or contact your authorized Air Techniques Dealer The SET TEMP is factory pre set at 82 F 28 C CLEANING MODE Use this keypad only during cleaning procedures CLEANING MODE activates an extended 10 minute process cycle PROCESSING indicator light flashes short long when in this mode 12 FUNCTION CHARTS AT2000 XR FUNCTION amp OPERATION CHARTS The AT2000 XR Film Processor s function and status conditions as designed are separated into six categories listed below The charts associated will provide insite to required processor operation and expedite any trouble shooting if applicable Refer to the appropriate Function Chart as required to quickly identify and resolve the issue at hand FILM SHUTTER FUNCTIONS PROCESSING STATE Stand By SHUTTER STATE CLOSED FILM SHUTTER FUNCTIONS
64. min MIN SINK SIZE REQUIRED 1 6 CLEAN RACKS IN SINK 14 LX91 2W 1 1 2 min lt PVC DRAIN PIPE DIA m IMPORTANT See detail A below AN AIR GAP OF AT LEAST Co 6 IN IS REQURED BETWEEN ENI ALI OF DRAIN HOSE AND WATER 90 LEVEL INSIDE DRAIN S nnen D n a A THE MAXIMUM DISCHARGED FLUID LEVEL INDEPENDENT STANDPIPE DRAIN INSTALLATION DETAIL A CORRECT INCORRECT Drain hose must fit loosely into PVC standpipe to allow drain ventilation PLUMBING CONNECTIONS OPTION 2 Chemistry recovery and wash water sewer disposal connection If permitted by local code FRESH WATER VALVE DEVELOPER Q DRAIN HOSE BLACK 6 FT WATER INLET HOSE FIXER DRAIN ASSEMBLY HOSE RED EE ws EJ WASH WATER DRAIN HOSE H WHITE LLLILLLLLLILLLLLLLLLLLL LL LLL LLL LLL LLL LLL LLL LLLLLLLLON L DRAIN HOSES MUST SLOPE DOWNWARDS WITHOUT ANY U s OR UPWARD BENDS HEI 2 2 ch min MIN SINK SIZE REQUIRED TO Lo Lo CLEAN RACKS IN SINK 1 1 2 min S NS 14 LX 91 2 W FIXER lt REPLENISHMENT LINE RED n IMPORTANT ett AN AIR GAP OF AT LEAST 6 mi 6 IN IS REQURED BETWEEN END See getat A below OF DEAN HOSE AND WATER d 1 DEV TE sink STANDPIPE TRAP TRAP REPLENISHMENT CHEMISTRY DETAIL A INDEPENDENT S
65. ng B Check all the transport racks gears for any broken parts If any gears are broken replace the appropriate gear if feasible or the affected transport C Check that the Drive Motor connector J3 is properly attached inside the connector compartment D Check electronics function and using the TEST POINT CHART page 19 Connect a voltmeter to J3 pins 2 amp 3 and depress the CLEANING CYCLE button on keypad 1 If voltage is 103 5 126 5VAC replace the Drive Motor p n 45472 2 If voltage is NOT 103 5 126 5VAC replace Electronics Module p n 45415 E Check the interlock switch functionality by verifying continuty between the switch leads when tripped Refer to the SYSTEM SCHEMATIC page 20 to test at J10 pins 1 amp 2 6 DRIVE MOTOR ENDO SPEED DOES NOT RUN A Check that the Top Cover assembly is seated squarely on the Base If not the interlock switch may not be engaged which will prevent the transport drive motor from running B Check all the transport racks gears for any broken parts 1 If any gears are broken replace the affected transport or the appropriate gear if feasible C Check that the Drive Motor connector J3 is properly attached inside the connector compartment D Check electronics function and using the TEST POINT CHART page 19 Connect a voltmeter to J3 pins 1 amp 3 and depress the CLEANING CYCLE button on keypad 1 If voltage is 103 5 126 5VAC replace the Drive Motor p n 45472 2 If volta
66. nnector pins or poor lugging 5 Check voltage J4 pins 1 amp 2 If voltage is NOT 103 5 126 5VAC or if all prior checks are satisfactory replace the Electronics Module p n 45415 11 KNOCKING THUMPING NOISES DURING PROCESS CYCLE A Transport and or drive train is jammed or out of adjustment Remove the transport rack assembly as depicted in the ROLLER TRANSPORT section page 57 1 Check the baffles in the Wash Dry rack verify they are installed correctly Refer to the detail view of assembly in the Roller Transport Parts illustration page 58 Note the inner baffle is installed before the outer baffle 2 Check transport racks for a Properly seated on worm gear amp latched in place Reseat amp latch if dertermined so b Transport racks do not have broken gears Replace rack if broken gears are found c Latches are broken or dislodged from the drive block Rectify problem as required d Racks are square not twisted when resting on a flat surface if not then adjust as mentioned in Film Sreaking Troubleshooting page 32 3 Check for thumping sounds coming from the front top of the processor if so then check shutter guard it may be bent inward slightly and is rubbing against the inlet rollers of the Developer Transport Rack If this is the case re adjust as necessary to alleviate the interference by loosening the retaining screws amp pivoting the bar Re tighten the screws when adjustment is complete 4 Check for f
67. ptimum temp setting of 82 F NOT achieved Preview the processor s temperature setting as follows POWER ON push and hold the DISPLAY SET TEMP button The value displayed will start flashing if NOT 82 then a readjust 1 Open the flip lid on the top side of the Electronics Module push and hold the DISPLAY SET TEMP button on the keypad and rotate the potentiometer until 83 is displayed Once reaching 83 slowly rotate counterclockwise until 82 is achieved The processor s heat control amp display can be reviewed on FUNCTIONAL MODES FUNCTION CHART page 15 2 If chemistry temperature is above 82 F and the display pre set is 82 F Analyze the heat control components per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 CHEM ISTRY TEMPERATURE CONTROL PROBLEMS Item D provided on page 27 E If this is a Daylight Loader application check the DLL for light leaks 1 Confirm the view glass is closed when the user handles films 2 Check the condition of the cuffs Worn torn loose etc 3 Check the mounting onto the processor 4 Check seal around the lid Cover wi view glass 30 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 2 FILMS ARE TOO LIGHT A Confirm the following initial requirements for AT2000XR Automatic film processing 1 Proper X Ray exposure setting underexposure will create light films Film is not outdated within manufacturer s recommended processing life or defective Film us
68. r Refer to the Operator s Manual shipped with the product for all processor operation It is further understood that repair and maintenance information provided herein is to be performed by a trained servicing technician Power Removal Prior to performing the procedures contained in this document turn off power switch by placing the rocker switch on the top of the unit to the OFF 0 position Also disconnect the line cord from the wall outlet and the communication cable from the Scanner Warnings and Caution Statements In these instructions the following definitions Apply for all WARNINGS and CAUTION Statements Warnings Any operation procedure or practice which if not strictly observed may result in injury or long term health hazards to personnel or patients Cautions Any operation procedure or practice which if not strictly observed may result in destruction of equipment or loss of treatment effectiveness Task Guidelines Personnel performing maintenance and repair tasks contained in this manual should follow standard industry guidelines for working on electronic equipment as necessary These include the following Always use a clean well lit work area with ample space required for the size of the job L Always make sure to protect finished surfaces from scratches or other damage by using cushioning material such as a soft cloth or packaging material between the finished surfaces and the area that may cause damage
69. range 3 FILM DENSITY CONTRAST IS POOR 32 X RAY setting chemistry s not within range 4 FILM HAS STREAKING AT ONE END ONLY 32 Developer rack not square or wet inlet rollers processor not level 5 FILM HAS STREAKING CONSISTENTLY REPEATING 33 Developer rack not square or needs cleaning processor not level 6 FILM HAS STREAKING RANDOMLY 33 Chemistry agitators not operating inadequate chemistry s 7 FILM HAS SPOTS 7 APPEARS DIRTY 34 Film handling processor cleanliness inadequate wash water 8 FILM HAS BRANCH LIKE ARTIFACTS SMUDGES 34 Static electricity discharge 9 FILM HAS SILVER GREEN BROWN COLOR 35 Liquid levels low fixer agitator not operating premature processing and chemistry replenishment 10 FILMS IS WET TACKY AFTER PROCESSING 35 Poor room venting dryer baffles chemistry s not within usage range 11 FILM EMULSION IS PEELING OFF 36 Wash water too hot chemistry s not within usage range wrong film type 12 DEVELOPER TRANSPORT STAINING DEPOSITS 36 Contaminated chemistry 13 FIXER TRANSPORT STAINING DEPOSITS 36 Contaminated chemistry 14 WASH DRY TRANSPORT STAINING DEPOSITS
70. rn ON CLEANING Mode SHUTTER OPEN CLEANING Mode i CANADIAN CUL 2000 XR FILM PROCESSOR SHUTTER Open Time POWER Turn ON CLEANING Mode FLUID VOLUME SHUTTER OPEN CLEANING Mode Notes 1 CLEANING Mode is formally known as MANUAL Mode Keypad has changed General Notes 1 2 There is replenishment CLEANING Mode but standard replenishment occurs if the shutter is opened for the prescribed times Algorithm for replenisher turn on time is Replenisher start time NORMAL shutter OPEN time 2 X ENDO shutter OPEN time MEASURING REPLENISHER DISPENSING The following provides an approach to verifying the replenisher pump output flow rate for developer and fixer chemistry This technique will aid in solving replenisher related problems Equipment needed 250ml Graduated Beaker and Stopwatch Initial Procedure 1 Verify the electronics are operating as required before starting replenishment rate examination Upon powering up the processor an initial replenishment of chemistry lasts 90 seconds this can be confirmed by listening for the pump sound near the circulator drawer will be the only sound heard from the processor Ready the stopwatch turn the power switch ON and start the stopwatch together Allow the initial replenishment pumping of chemistry to be completed The replenishers must pump for a time period between 88 and 92 seconds discontinued this test pro
71. ter solenoid NOTE Before installing verify that the solenoid does not contain a flow restrictor view through the screen filter See Detail A 3 Disconnect the power leads 2 ground wire 3 and water inlet tube 4 from solenoid Remove existing solenoid and replace with new assembly 6 using machine screws 7 lock washers 8 and flat washers 9 supplied in kit 4 Turn base over and re connect the new water inlet tube 4 to the solenoid connector Tighten as required toassure an adequate seal but do not overtighten or cross thread 5 Reconnect power leads and ground wire to the new solenoid Re assemble unit 45 BASE ASSEMBLY Heater Pad P N 45950 EVALUATION AND CHECKING OF HEATER PAD A If there is a heating problem with the processor and a defective Heater Pad is suspected be sure that the Heater Pad assembly 45950 is actually defective before replacing it Perform the followsteps below B Steps to take to check if Heater Pad is defective 1 Remove cover from processor 2 Carefully remove transport wash dry rack avoiding contamination of chemistry 3 Remove the black cover unscrew two 2 Phillips head screws in the left rear compartment 4 In the left rear compartment Unplug the white connector with the two 2 black wires labeled HEATER PAD pinch the two side tabs while pulling on the connector Measure the resistance across the two metal terminals in the white connector The value must
72. toring of levels in the bottle are necessary and the chemistry level should never be below 1 from the bottom of it s respective bottle Deposits on either FIXER TRANSPORT or WASH DRY TRANSPORT Rack for any white staining on Fixer Rack exit or Wash Dry entry rollers Check the baffles in the Wash Dry rack verify they are installed correctly Refer to the detail view of assembly in the Roller Transport Parts illustration page 58 Note the inner baffle is installed before the outer baffle C Check the CHEMISTRY REPLENISHMENT level control and pumping rateby analyzing the chemistry replenishment for insufficient amounts per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 REPLENISHER PUMP PROBLEMS provided on page 26 D Check the WASH WATER for inadequate or no flow of water into wash tank by analyzing the wash water for insufficient amounts per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 WASH WATER PROBLEMS provided on page 28 8 FILM HAS BRANCH LIKE ARTIFACTS SMUDGES A Static electricity discharges onto the film and imposes an artifact Reiterate safeguards 1 2 3 Removal of films and film wrappers slowly from cassettes and boxes The room should have appropriate floor covering Increase the humidity level in the room 34 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 9 FILM HAS SILVER GREEN BROWN COLOR A Confirm the following initial requirements for AT2000XR Automati
73. vel control and pumping rate 1 Inspect the both developer amp fixer Drain Tube washer condition Must be in good condition 2 Confirm that both developer amp fixer Drain Tubes firmly seat in their drain sockets 3 Analyze the chemistry replenishment for insufficient amounts per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 REPLENISHER PUMP PROBLEMS provided on page 26 31 TROUBLESHOOTING AT2000 XR Film Quality Troubleshooting 3 FILM DENSITY CONTRAST IS POOR A Confirm the following initial requirements for AT2000XR Automatic film processing 1 Proper X Ray exposure setting Film is not outdated within manufacturer s recommended processing life or defective Film used is designed for Automatic Processing Film screen combination is correct per manufacturer s specifications Intensifying screens are not worn outdated and or dirty Chemistry used is designed for roller transport processors Chemistry is not contaminated Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 8 Check the developer chemistry is at 82 F 9 Check the Replenisher Pumps are adding chemistry when the Film Shutter opens 10 Check the wash water temperature is between 55 F and 80 F 4 FILM HAS STREAKING ONE END ONLY A Confirm the following initial requirements for AT2000XR Automatic film processing 1 Chemistry is not contaminated and within recommended useful life
74. y seat in their drain sockets Analyze the chemistry replenishment for insufficient amounts per the check sequence listed in TROUBLESHOOTING GUIDE SECTION 1 REPLENISHER PUMP PROBLEMS provided on page 26 12 DEVELOPER TRANSPORT STAINING DEPOSITS A Deposits only on DEVELOPER TRANSPORT Rack Silver and or gray staining on gears 1 2 Check developer chemistry for contamination Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems Clean per the MAINTENANCE requirements in the USER S MANUAL 13 FIXER TRANSPORT STAINING DEPOSITS A Deposits only on FIXER TRANSPORT Rack Silver deposits present 1 2 3 Fixer chemistry is exhausted Change the chemistry Thoroughly clean the rack per the MAINTENANCE requirements in the USER S MANUAL Confirm the Replenishment Bottles did not run dry if so then change the chemistry and reiterate Monitoring of levels in the bottles are necessary and the chemistry level should never be below 1 from the bottom of it s respective bottle 14 WASH DRY or FIXER TRANSPORT DEPOSITS A Problem with deposits on either FIXER TRANSPORT or WASH DRY TRANSPORT Rack or white staining on the Fixer Rack exit or Wash Dry entry rollers indicate a transport assembly problem Check the baffles in the Wash Dry rack verify they are installed correctly Refer to the detail view of assem bly in the ROLLER TRANSPORT PARTS illustration page 58 and note that the Inner Baffle is install

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