Polaroid SprintScan SS35 Repair Manual Download Page 19

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Slide Scanner Repair Manual

Scanner Overview

Rear

Front

SCSI Receptacles

(Top and Bottom)

Power On/Off

(1/0) Switch

SCSI

ID Selector

Fuse

Receptacle

Power

Receptacle

Power

LED Indicator

Ready

LED Indicator

Top

Access Slot

Side

Access Slot

Release

Button

SS35/SS35 ES

SS35 PLUS

SCSI Receptacles

(Top and Bottom)

SCSI

Terminator Switch

Power

Receptacle

Power On/Off

(1/0) Switch

Figure 1-2. Slide scanner features

Polaroid SprintScan 35

SCSI

ID Selector

Fan

Summary of Contents for SprintScan SS35

Page 1: ...Repair Manual Americas Business Center Technical Services 201 Burlington Road Bedford MA 01730 TEL 1 781 386 5309 FAX 1 781 386 5988 SprintScan Slide Scanner SS35 SS35 ES SS35 PLUS October 1997...

Page 2: ...24 Scanning the Slide Film Strip 25 Self CheckRoutines 26 Self Test Power Up 26 Calibration 28 2 FunctionalDescription 31 Scanner Process Overview 33 Scanner Transporter 34 Scanner Optics 37 ScannerE...

Page 3: ...rge Warning 53 InspectionandCleaning 54 Checking Scanner Self Test Power Up 56 Adjustments 59 Power Supply 59 Focus Magnification 60 TransporterPhoto SensorAlignment 69 Filter Wheel Set Photo Sensor T...

Page 4: ...and Troubleshooting 96 Error Messages 99 Diagnostic Digital Hardware 100 Operational 101 Calibration 106 LabView Image Performance Test IPT Version 1 02 Mac 113 Scanner Tester w Front Panel 113 Image...

Page 5: ...Panel Controls 133 Test Report 134 Test Constraints 134 Analysis 134 Left and Right Misalignment Windows 137 Mag and Tilt Adjustment Effects 137 Motion Problem Examples 138 Uniformity II Test 140 Part...

Page 6: ...ty II Stand Alone Test Control Panel 156 6 System Diagrams 157 Power Supply Specification Sheets 1 4 159 AC Inverter PC Board 163 Image Sensor CCD PC Board Schematics Sheets 1 3 164 SS35 SS35 ES Main...

Page 7: ...or setup after component replacement Parts Replacement Step by step procedures for assembly and component level replacement Diagnostics and Troubleshooting Internal diagnostic software for help in di...

Page 8: ...of the slide scanner should be used Extension cords rated for less amperage may overheat Connect the slide scanner to a grounded outlet Always turn the host computer OFF and then the slide scanner OFF...

Page 9: ...Slide Scanner Repair Manual Scanner Overview 9 1 Scanner Overview...

Page 10: ...iew Contents Description 11 Applications 12 Features 14 Specifications 19 Operation 22 Setting up the Slide Scanner 22 Installing the Software 23 Starting the Software 24 Scanning the Slide Film Strip...

Page 11: ...and using application software refer to the applicable slide scanner User Guide The slide scanners are desktop fixed format high speed 35 mm transparency film scanners capable of scanning positive and...

Page 12: ...fer to the applicable slide scanner User Guide Table 1 1 Slide Scanner Applications Applications UserGroups SS 35 SS 35 ES SS 35 PLUS DigitalDesign GraphicDesigns Corporate Design Departments Advertis...

Page 13: ...Slide Scanner Repair Manual Scanner Overview 13 Figure 1 1 Slide scanners SprintScan 35 35ES SprintScan 35 PLUS Polaroid SprintScan 35 Polaroid SprintScan 35 PLUS...

Page 14: ...self test Upon completion this indicator lights steady to indicate that the slide scanner is ready to operate Top Access Slot The top access slot is used when scanning 35 mm slide transparencies Side...

Page 15: ...before replacing the blown fuse with the provided spare Replace the spare fuse with a new one as soon as possible Power Fuse Not user accessible Located on power supply PC SS35 PLUS board SCSI ID Sele...

Page 16: ...the 25 pin SCSI port at the rear of the host computer Adaptec AT to SCSI Host Adapter port for Windows version SCSI Terminator SS35 SS35 ES SCSI terminator connects to the bottom receptacle SS35 PLUS...

Page 17: ...Adapter slide scanner and host computer communicate WindowsVersionONLY Notes The adapter is preset at the factory for default interrupts and port address values Host adapter not included with all mod...

Page 18: ...Slide Scanner and other image digitizers The software allows the scanned image to be manipulated Manipulation includes rotating cropping zooming re sizing and changing the output image For more detail...

Page 19: ...ector Fuse Receptacle Power Receptacle Power LED Indicator Ready LED Indicator Top AccessSlot Side AccessSlot Release Button SS35 SS35 ES SS35 PLUS SCSI Receptacles Top and Bottom SCSI Terminator Swit...

Page 20: ...ronmentalConditions Operating Temperature 50 F 10 C to 104 F 40 C Optimum 60 F 16 C to 80 F 27 C Storage Temperature 20 F 30 C to 160 F 70 C OperatingRelativeHumidity 20 to 80 Optimum 30 to 60 Media T...

Page 21: ...Monitor VGA Color Monitor and VGA Color Monitor and Video Card Video Card Recommended True Color Recommended True Color Video Card 24 bit color Video Card 24 bit color with at least 800 x 600 with at...

Page 22: ...starting its software assigning its SCSI ID and checking the SCSI connection and scanning a 35 mm transparency using SprintScan refer to the applicable slide scanner User s Guide Setting Up the Slide...

Page 23: ...SCSI Lite EZ SCSI Configureshostcomputer for SCSI adapter Provides additional driver files for SCSI interface AdobePhotoshop Automaticallytransfers final scans into Adobe PhotoShop Provides digitized...

Page 24: ...on File Menu Scanner Control Panel Displays Scan Slide Film Strip C Turn On Scanner then Host Windows Version Mac Version Click on Adobe PhotoShop Click on File Menu Select SprintScan 35 Click on Impo...

Page 25: ...plicable slide scanner User s Guide for information pertaining to scanning a mounted slide unmounted slide or film strip Scan MountedSlide Open Carrier Insert MountedSlide into Scanner Top Slot Scan S...

Page 26: ...fer to the simplified flow diagram shown in Figure 1 7 for the necessary steps to self test the slide scanner during power up Upon completion passed self test the transporter returns to its home posit...

Page 27: ...y Self Test Passed Self Test Failed Run LabVIEW Test See Section 5 for Details Ready LED ContinuallyBlinks Transporter SCSI ASIC s A D Converters Filter Wheel Figure 1 7 Self Test simplified flow diag...

Page 28: ...line integration time to ensure a minimum signal and mitigation of saturation Analog gain and offset for base line neutral settings Digital uniformity offset calibration Digital uniformity gain calibr...

Page 29: ...igitaluniformity offsetcalibration Digitaluniformity gaincalibration Badpixelidentification Drift test Figure 1 8 Calibration simplified flow diagram Calibration Completed Ready LED Lights Steady Fail...

Page 30: ...r base line neutral settings Digitaluniformity offsetcalibration Digitaluniformity gaincalibration Badpixelidentification Drift test lamp front end Figure 1 9 Calibration simplified flow diagram Calib...

Page 31: ...Slide Scanner Repair Manual FunctionalDescription 31 2 Functional Description...

Page 32: ...bution 40 AC Inverter PC Board 41 Image Sensor PC Board 42 CCD Image Sensor 42 Associated Analog Signal Processing Support Circuitry 43 Main Controller PC Board 43 AnalogSignalProcessing 45 Digital Si...

Page 33: ...ASIC then sends uniformity corrected image data to the preview image buffer When the host computer requests the image data the preview image buffer applies it through the secondary color correction AS...

Page 34: ...5 mm transparency through the illuminatedscanningarea Filter Wheel Used as a shutter for dark calibration It also houses a neutral density filter that is used to attenuate the lampwhilescanning Note U...

Page 35: ...ssed analog signal from the VSP A D Converter into a digital RGB image signal Note 10 bit A D converter for SS35 SS35 ES 12 bit A D converter for SS35 PLUS Primary Correction ASIC Primary correction i...

Page 36: ...and color mode SCSI Interface Used to communicate with the host computer down loads signal processing parameters to the slide scanner and to send processed image data to the host computer Host Compute...

Page 37: ...ning and calibration The transporter photo sensor U1 provides the referenceforproperlypositioningthetransporterassembly Scanner Optics The slide scanner optical system consists of a florescent lamp a...

Page 38: ...ower to operate the slide scanner The following paragraphs describes how the operating power is generated and how the different voltage levels are achieved Refer to simplified block diagram Figure 2 3...

Page 39: ...el Stepper Motor Lamp MainController PC Board 15 Vdc 90 260 Vac 43 63 Hz J 9 J 4 J 1 21 V rms 5 Vdc J 1 Image Sensor CCD PC Board J 3 Vdd Vee Vcc J 8 12 Vdc U 16 U 17 U 25 6 Vdc 6V NEG 6 V Power Suppl...

Page 40: ...erence circuitry on the main controller PC board U25 Generates a regulated 12 Vdc voltage that is used to power the slide scanner s cooling fan R133 Resistor R133 generates unregulated 12 Vdc that is...

Page 41: ...ON Off 1 0 switch is set to its ON 1 position 5 Vdc is applied through connectorJ1 on the power supply PC board to the input of the switching network Q1 andQ2 on the AC inverter PC board The switching...

Page 42: ...sor which generates electrical signals proportional to the intensity of the light The CCD image sensor functions so that the magnitude of the electrical signal is linearly proportional to the intensit...

Page 43: ...tal A D converter a primary correction ASIC DRAM based buffer memory a secondary color correction ASIC a microcontroller a SCSI interface and its support electronic circuitry Refer to simplified block...

Page 44: ...23456789012345678901234 I O Lines Ready Yellow LED TransporterPhoto Interrupter Filter Wheel Photo Interrupter Transporter Stepper Motor Power On Green LED MicroController UC Host Computer SCSI Bus SR...

Page 45: ...t is fed into the A D converter to avoid aliasing The analog signal is then converted at 10 bits per sample for SS35 SS35 ES or at 12 bits per sample for SS35 PLUS Digital Signal Processing Digital si...

Page 46: ...supported Horizontal Area of Interest control VerticalAreaOfInterestunderdirectmicrocontrollercontrol Programmable realignment for an arbitrary number of lines per color spacing 2 Mbytes per second s...

Page 47: ...k between the data generation rate out of the synchronous CCD and primary color correction ASIC and then into the host computer controlled SCSI port The microcontroller monitors how full the buffer is...

Page 48: ...1 8 resolution modes is performed in the imager on demand Transporter Driver The main controller PC board provides a transporter driver that receives signals from the microcontroller These signals di...

Page 49: ...the host computer The SCSI interface provides SS35 SS35 ES Two standard 50 pin female Centronics connectors to connect the host computer via the provided SCSI cable SS35 PLUS One standard 50 pin fema...

Page 50: ...50 Slide Scanner Repair Manual Calibration and Adjustments 3 Calibration and Adjustments...

Page 51: ...nt 52 Warnings and Precautions 53 Voltages 53 Electrostatic Discharge Warning 53 Inspection and Cleaning 54 Checking Scanner Self Test Power Up 56 Adjustments 59 Power Supply 59 Focus Magnification 60...

Page 52: ...ush Can of compressed air Cotton gloves or finger cots Cleaninginstructions 4 Test Equipment LabVIEW Runtime Test Software w Concept VI License for Mac Voltmeter Fluke 8026B or equivalent Dual Trace O...

Page 53: ...3 1 Also use caution when handling test leads which may carry high voltage when the slide scanner is powered Figure 3 1 Scanner high voltage danger points Electrostatic Discharge Warning Slide scanne...

Page 54: ...ure With Power Off AssemblyMounting Check all assembly mounting screws to make sure each screw Screws is tight PC Boards Check to make sure Mounting screws properly secures PC board Cables and connect...

Page 55: ...late without getting stuck Light Tunnel Check to make sure there is a 1 mm clearance between the face of the light tunnel and slide carrier Holder assembly Power On Power On Off 0 1 Check to make sure...

Page 56: ...4 Upon completion passed self test the transporter returns to its home position and theReady LED lights steady to indicate that the slide scanner is ready to operate Notes If the yellowReady LED cont...

Page 57: ...TransporterSeeks Calibration Window Self Test Completed Ready LED Lights Steady Self Test Passed Self Test Failed Run LabVIEW Test See Section 5 for Details Ready LED ContinuallyBlinks Transporter SCS...

Page 58: ...ion Analog gain and offset for base line neutral settings Digital uniformity offset calibration Digitaluniformitygain calibration Bad pixel identification Drift test Calibration Completed Ready LED Li...

Page 59: ...t the voltmeter to pin 1 of connector J6 on the main controller PC board Figure 3 4 The voltmeter should read 5 0 0 1 Vdc 3 If the voltage reading at pin 1 of connector J6 is incorrect adjust as follo...

Page 60: ...on 3 Turnontheslidescanner 4 Perform the focus procedure For SS35 PLUS 1 Removethetophousing 2 Set the SCSI ID switch to 8 This action keeps the VSP turned on 3 Connect the slide scanner via the SCSI...

Page 61: ...nts Figure3 5 asfollows Note Figure 3 6 displays the RGB raw output of the VSP before the focus target is inserted in the light path Oscilloscope SS35 SS35 ES SS35 PLUS External Ext BNC J7 pin 2 LSYNC...

Page 62: ...us magnification target with surface image facing lens into the top access slot Figure 3 7 of the slide scanner Marks on target indicates which side faces the slide scanner lens Slide Scanner cover sh...

Page 63: ...cilloscope time base settings are adjusted to view only the Red portion of the VSP output Figure 3 9 Focus magnification target 5 Examine the Red channel output of image produced by the target Figure...

Page 64: ...intensified 7 Intensify the left and then the right side 4 5 6 of the waveform Figure 3 11 8 After both sides of the waveform are intensified and expanded position them on top of one another Position...

Page 65: ...oscope displays the waveform signal Figure 3 12 of the focus and magnification target for one color channel Amplitude of all line pair sets are not uniform Table 3 2 lists and defines the causes of no...

Page 66: ...he waveform signal are uniform Figure 3 12 Hint One method of adjusting the position of the lens is by using two pencils Place one eraser tip on the left side of the lens and the other on the right si...

Page 67: ...lockassembly Figure3 14 tothecontroller PCboard 2 Loosen the two 2 screws that secures the lens block assembly to its bracket 3 Slightly move the lens block assembly in or out 4 Tighten the two 2 scre...

Page 68: ...ssembly adjustment SS35 SS35 ES SS35 PLUS Optical Block Screw Remove Controller Board Lens Block Screws Optical Block Screw Remove Controller Board Lens Block Screws Note For SS35 ES from serial no B6...

Page 69: ...ncontroller PC board Figure 3 15 2 If the transporter photo sensor tab is not properly centered loosen the screws that secures the main controller PC board to thechassis and back plate assemblies and...

Page 70: ...fterthesystemelectronicsstopsapplyingpulsestothefilterwheelsteppermotor the transporter goes to its top position and then jams This is OK Wait until the Ready LED indicatorflashesand thenreleasethefil...

Page 71: ...71 Slide Scanner Repair Manual Calibration and Adjustments Figure 3 16 Filter wheel photo sensor tab alignment U4 Filter Wheel Photo Sensor Tab Main Controller PC Board...

Page 72: ...72 Slide Scanner Repair Manual Parts Replacement 4 Parts Replacement...

Page 73: ...7 Main Controller PC Board 78 Removal 78 Installation 79 ChassisAssembly 80 Removal 80 Installation 81 Power Supply PC Board 82 Removal 82 Installation 83 AC Inverter PC Board 84 Removal 84 Installati...

Page 74: ...Standard tool kit Solder sucker Fusepuller Electrostatic Discharge Warning Slide scanner circuitry can easily be damaged by small static discharges Always use an anti static mat and a wrist strap when...

Page 75: ...ock the slide scanner s housing should only be opened by a qualified service person and only after the slide scanner has been disconnected from its power source Note Care should be taken throughout al...

Page 76: ...2 Figure 4 2 Removing scanning lamp 4 Remove the four 4 screws securing the bottom case to the top housing Lift off the top housing Thefrontdoorlatchatthebaseofthetophousingmayfalloff Donotloosethefro...

Page 77: ...ethatthetabsonthebaseoftheupperhousingalignwiththe slots at the front and rear of the bottom case Snap the top housing into the bottom case 3 Install and tighten the four 4 screws that secures the top...

Page 78: ...Filter Wheel Stepper Motor Cable J4 N A N A Power Supply Cables J5 J6 J5 J6 J5 J6 CCD Sensor Ribbon Cable J3 J3 J3 Fan Assembly Cable J9 J9 J8 SCSI Interface Ribbon Cable J10 J10 N A SCSI Select Swit...

Page 79: ...the bottom case 3 Connect all electrical connectors cables to the main controller PC board Electrical cables to be reconnected SS35 SS35 ES SS35 PLUS Transporter Stepper Motor Cable J1 J1 J1 Filter W...

Page 80: ...rterspring 4 Remove the three 3 screws securing the chassis assembly to the bottom case Figure 4 7 5 Lift out the chassis assembly Figure 4 7 Removing chassis assembly ChassisAssembly BottomCase SS35...

Page 81: ...bottom case 3 Reconnectthetransporterspring 4 Install the main controller PC board 5 If applicable check the alignment of the filter wheel assembly as explained in Section 3 of thisRepairManual Note...

Page 82: ...eld 5 Disconnect all electrical connectors cables from the power supply PC board Electrical cables to be disconnected Green ground spade lug AC input cable AC inverter power cable Maincontroller PC bo...

Page 83: ...power supply PC to the bottom case 3 Connect all electrical connectors cables of the power supply PC board Electrical cables to be reconnected Green ground spade lug AC input cable AC inverter power c...

Page 84: ...ace it Removal 1 Removethetophousing 2 Remove the screw that secures the AC inverter PC board to the bottom case Figure 4 9 Figure 4 9 Removing AC inverter PC board 3 Disconnect all electrical connect...

Page 85: ...e scanning lamp Blue BL White WH Red RE Orange OR to the applicables pins on the AC inverter PC board 2 Install the AC inverter PC board 3 Install and tighten the screw that secures the AC inverter PC...

Page 86: ...AC inverter PC board SCSI interface terminator power Note The system AC power fuse SS35 SS35 ES only is the only fuse that can be replaced by the user See User s Guide All other fuses power supply AC...

Page 87: ...he main controller PC board 3 Using fuse pullers remove the blown fuse Figure 4 10 and then replace it with a new one Note FuseRating 2 5A 250V US T2 5A 250V Europe Figure 4 10 Replacing fuse on power...

Page 88: ...then replace it with a new one Notes The AC inverter fuse is soldered to the AC inverter PC board When replacing it be very careful not to damage the AC inverter PC board FuseRating Type 1 Type 2 2 5A...

Page 89: ...gure 4 12 and then replace it with a new one Notes The SCSI fuse is soldered to the main controller PC board When replacing it be very careful not to damage the main controller PC board FuseRating 2 5...

Page 90: ...PC board 3 Remove the setscrew that secures filter wheel stepper motor to the lens block assembly Figure 4 13 4 Lift out the filter wheel stepper motor and then replace it with a new one 5 Reconnect c...

Page 91: ...TOPS ON THE BALL SLIDE 5 Remove the three 3 screws securing the transporter stepper motor to the chassis 6 Gently pull down the transporter stepper motor and then lift it out Replace it with a new one...

Page 92: ...r motor SS35 SS35 ES SS35 ES SS35 PLUS ChassisAssembly ChassisAssembly Transporter Stepper Motor Note For original SS35 and SS35 ES up to serial no B6xxxxxxD Note For SS35 ES from serial no B6xxxxxxE...

Page 93: ...ove the two 2 screws that secures the back plate to the bottom case 3 If applicable remove the light tunnel 4 Remove the four 4 screws securing the CCD sensor PC board and mounting block assembly to t...

Page 94: ...le assembly taken from an old non repairable slide scanner or fabricated in house to the controller PC board Using a separate cable prevents the weight of the back panel cable assembly from holding th...

Page 95: ...en down two 2 of the screws that secures the CCD sensor PC board to its mounting block Once the final tilt adjustment is made tighten all four 4 screws that secures the CCD sensor PC board to its moun...

Page 96: ...96 SlideScannerRepairManual Diagnostics and Troubleshooting 5 Diagnostics and Troubleshooting...

Page 97: ...Setup Complete Image Performance for LabVIEW Version 4 121 Entering Test Parameters 123 Entering Optional Test Parameters 124 Starting Test 124 Auto Reference Finding Origin for GMT and CT Targets 12...

Page 98: ...45 CCDConfiguration 146 Determining CCD Configuration Using Scanner Tester 146 IPT Scanner Test Descriptions 147 Motion and Color Registration Test 147 Static Color Registration 147 Mean Vertical 147...

Page 99: ...e grouped as four 4 consecutive hexadecimal bytes in least significant byte LSB to most significant byte MSB Refer to conversion Table 5 1 to translate displayed hexadecimal error messages The example...

Page 100: ...agnostics controllerPCboard controllerPCboard 00 00 00 04 ESCPD fake scan test Defectivemain Replacemain failureduringdiagnostics controllerPCboard controllerPCboard 00 00 00 08 Primary correction fak...

Page 101: ...is controllerboard automatically reset to factory defaults when this error occurs Includes CCD configuration 00 00 02 00 Transporter timed out Transporteroperation Replacetransporter while returning t...

Page 102: ...00 Slidescanner sinternal Microcontrolleron Replacemain serialcommunication main controller PC controllerPCboard malfunctionsduring boarddefective operation 00 00 20 00 Filter wheel does not Filterwh...

Page 103: ...roller PC board 00 00 80 00 Unable to locate Transportermalfunctions Check transporter to make sure calibrationwindow it functions during power up duringinitialization Iftransporterfunctionsproperly N...

Page 104: ...Controller PC Board Controller PC Board to slide scanner timed out 02 00 00 00 DSPFLTERROR Defective Main ReplaceMain DSPcommunications Controller PC Board Controller PC Board to slide scanner has fau...

Page 105: ...ROR Missedcommunication Check for DSP has a Status betweenhostcomputer error from last and slide scanner Proper SCSI connection operation andtermination Voltage at SCSItermination power diode D1 Shoul...

Page 106: ...integration time adjustments to accommodate white points requested by the host or film tables as a function of the specific calibration algorithms A drift check is performed with each scan to verify...

Page 107: ...107 SlideScannerRepairManual Diagnostics and Troubleshooting Video Signal Calibration Position Video Signal Dark Level Position Figure 5 1 Video signal...

Page 108: ...p video signal turned on If video signal turns off for SS35 SS35 ES cycle power off and then on to regain video signal Transporter in its home calibration position Also check the video output signal F...

Page 109: ...ide Scanner OK Calibration Error Video Output Signal Shows Irregularities A Check for Obstructions in Optical Path Lamp Brightness and Uniformity Transporter Movement Filter Wheel Alignment Filter Whe...

Page 110: ...gure 5 3 Calibration error flow diagram No Calibration Error Slide Scanner OK Rescan Replace Main Controller PC Board Calibration Error Replace Sensor CCD Assembly Re adjust Focus and Magnification Se...

Page 111: ...ght during initial calibration Over saturated at nominal for one or more colors ND filter position incorrect Check ND filter position If necessary correct position of ND filter 00 08 00 00 Light sourc...

Page 112: ...D Note If this error stills persists after the necessary action is taken replace sensor CCD PC board Light source too dim Check lamp ND filter and optical path for any obstructions If necessary replac...

Page 113: ...rom the Polaroid SprintScan 35 35 ES and 35 Plus slide scanners These same VI s are used to analyze the collected data and present the results graphically Scanner Tester w Front Panel The front panel...

Page 114: ...the desired VI by clicking on the Start Test button LabVIEW performs the test and displays its results in the Measurements window on the front panel Refer to Table 5 4 at the back of this section for...

Page 115: ...ality tests that are sequenced when the Geometric GMT test target is being used 1 Do test Allows the user to select all or a particular image quality test The tester default is all tests selected One...

Page 116: ...operator etc Constants Displays the test file to be used by the scanner tester Note The first time a slide scanner is tested the scanner tester prompts the user to select an Aims and Tolerances file A...

Page 117: ...urs this button will stop the scanner tester To restart the scanner tester just click the mouse on the white arrow the arrow becomes black again and the scanner tester resumes the selected image quali...

Page 118: ...fications If the report file indicates that all or a particular image quality function failed the repair person can compare the current parameters with the image quality specifications to determine ho...

Page 119: ...dark and light non uniformity of the slide scanner Dark Noise Changed The old target based Noise Test has been replaced by Dark Noise II to provide statistical and Fourier noise performance of dark r...

Page 120: ...ed MAC with floating point coprocessor RAM Recommended At least 32 MB Monitor VGA Color Monitor and Video Card True Color Video Card 24 bit color with at least 800 x 600 resolution Software LabVIEW Ru...

Page 121: ...puter 4 Double click on the LabVIEW 4 Icon The Choose the VI to open dialog box appears 5 Select the correct LabVIEW Runtime Version 4 software to start the program A dialog box Figure 5 5 appears wit...

Page 122: ...tion CR Res Tests Motion Color Registration ProgramXilinx Dsp gotoHiRes vi Scanner initialization and code download for scanner internal programmable logic 8 After the Scanner Tester software loads a...

Page 123: ...he type of CCD in use This option typically is only for factory use Repair centers will need to select the option when a slide scanner CCD is changed to the new modified blue filter type The Update op...

Page 124: ...e scanner test sequence Scanner Tester Status window prompts the user to load the applicable test target Figure 5 9 Please insert GMT target or Please insert CT target 2 The scanner tester starts the...

Page 125: ...scanning areas of interest AOI s to the scanner The AOI s arecomputed with respect to target references or fiducial marks For GMT target The reference finding origin is located in the upper left corn...

Page 126: ...Slide Scanner Repair Manual Diagnostics and Troubleshooting 126 Loading Geometric Test GMT Target Loading Color Test CT Target Figure 5 9 Loading applicable test target Red...

Page 127: ...canner Tester w panel Sub Vi tests list results in essentially the same way The Measurements box has a scrolling list that changes to show individual portions of the test results Table 5 6 shows how t...

Page 128: ...and CT PASS indicate whether the color patch test was performed and passed respectively The data in these columns will be used to sort the data into appropriate groups before analysis Stopping a Scan...

Page 129: ...e if the host computer is receiving the correct SCSI ID number SCSI cable defective Cold solder joints in path from SCSI connector to SCSI IC SCSI ID switch defective or if SS35 Plus switch is not con...

Page 130: ...onger flat or the carriage assembly is bad Horz Mag 0 8079 1 Failure of this test suggests Mag adjustment is needed See Mag Adjustment procedure Left Center and Right Resolution Test This test checks...

Page 131: ...lts as the Mean Offset and displayed in units of pixels The test breaks the static misalignment into two pieces vertical and horizontal The Mean Vertical offset is typically caused by errors in aspect...

Page 132: ...interaction with the follower nut and the guide rail Point defects are isolated disruptions in the carriage travel which are typically associated with burrs or dirt on the lead screw guide rail or wi...

Page 133: ...ed to blue misalignment and how to correct the problem Misalignment shows up on scanned images as color fringing seen on horizontal elements Figure 5 11 shows the panel after running a test on a scann...

Page 134: ...alysis report provides information on the data gathered and the corrective actions to take after running a Motion and Color Registration test An experienced user will be able to analyze the results an...

Page 135: ...RSS Mean Misalignment result 0 04 Pixels which is within the spec of less than 707 pixels This number is a combination of the vertical and horizontal static misalignments Note that in the main test pa...

Page 136: ...e the misalignment is derived as 0 01 pixels If this number is high the CCD tilt is also typically a high number Estimated CCD Tilt degrees The derived number that reports to the operator how much and...

Page 137: ...rtain spots example a burr or dirt in one spot on the leadscrew within the ball slide or on the guide rail In practice the point defect will be seen in a scanned image as a color fringe that always sh...

Page 138: ...ls When 2 33 is compared to the Peak misalignment limit of 1 10 it is more than twice as large The result means that mag or tilt adjustments alone will not fix this problem You must deal with carriage...

Page 139: ...deal of 0 0 to 1 29 A tilt adjustment will bring the left side up to the 0 6 point and the right side down to 0 6 The mag adjustment will shift both the left and right sides down even closer to the id...

Page 140: ...tion Analysis and Results in Horiz Offset the previous paragraphs Pixels Mean Offset Less than 0 707 pixels Refer to Motion Analysis and Results in RSS Pixels the previous paragraphs Peak R B 1 1 pixe...

Page 141: ...ons example hair in the calibration window or entrance of the light tunnel Part 2 The illumination portion of this test fails if the scanner is 10 over saturated or if the slide scanner is operating 1...

Page 142: ...35 Plus In all cases it is checked to be no more than a specified amount above the uncorrected calibration target For the SS35 ES that target is 16 digital numbers 16 dn For the SS35 Plus it is 68 dig...

Page 143: ...st dirt or hair in the light tunnel Blue Light Min 64 Min 64 Replace lamp Uniformity Obstruction in optic path such as dust dirt or hair in the light tunnel Mean Max 26 dn Max 86 dn Check alignment of...

Page 144: ...urements of the Dark Noise Tests Test Name Specification Specification Specification Suggested Repair SS35 w Filter Wheel SS35ES SS 35 Plus Min Fixed Dark 13 5 Same Dark Set Pt R G B Mean Fixed Dark 1...

Page 145: ...See Calibration Error Message Error Reporting The slide scanner error message dialog automatically interprets the hardware error codes as appropriate to the SprintScan 35 ES or SprintScan 35 Plus For...

Page 146: ...er Always select Do not Update Currently no configuration is written into the slide scanner but the slide scanner s configuration code will be read and displayed in the CCD Config Data array display l...

Page 147: ...to two primary causes each of which can be corrected out by a step in the manufacturing or repair process Mean Vertical The Mean Vertical offset is typically caused by errors in aspect ratio i e the...

Page 148: ...pically occur once or twice per motor revolution which is equivalent to 200 lines They are caused by wobble in the lead screw or in its interaction with the follower nut and the guide rail Point defec...

Page 149: ...d area of interest In the scanner functional tester the column average is done on a 64 line sample In the stand alone version this fixed pattern dark response is plotted vs pixel number as shown in Fi...

Page 150: ...esponse is plotted vs pixel number as shown in Figure 5 16 Similar to the test of the column means against the dark set point the standard deviations are recorded in terms of the A D converter s LSB s...

Page 151: ...above It reports which frequency had the largest response the Max peak fixed freq and checks that the size of the response at that frequency is less than the limit in power units Typical peak response...

Page 152: ...Figure 5 18 Noise IIw power control panel Uniformity II Test The Uniformity II test looks at the uncalibrated response of the CCD under light and dark illumination to test the quality of the sensor a...

Page 153: ...nner The light signals to the CCD is typically lower at the edges than in the center due to non uniformity in the lamp as well as the cosine 4 field losses of the lens Both of these factors tend to va...

Page 154: ...ponse from the curve fit It is not tested against limits but provides a metric of the uniformity of the CCD s response Slide scanner s which pass the scanner s built in calibration but fail either the...

Page 155: ...D signal has received analog offset adjustment to properly place the sensor s dark reference pixels The Uncorrected Dark Standard Deviation checks the standard deviation of the uncorrected dark profil...

Page 156: ...pixel flags Additional statistics on the uncorrected dark response If the Force New Cal option is selected or a successful calibration has not been performed since the slide scanner was last powered...

Page 157: ...157 Slide Scanner Repair Manual System Diagrams 6 System Diagrams...

Page 158: ...s Contents Power Supply Specification Sheets 1 4 159 AC Inverter PC Board Schematic 163 Image Sensor CCD PC Board Schematics Sheets 1 3 164 SS35 SS35 ES Main Controller PC Board Schematics Sheets 1 8...

Page 159: ...159 Slide Scanner Repair Manual System Diagrams Power Supply Specification Sheet 1 of 4...

Page 160: ...160 Slide Scanner Repair Manual System Diagrams Power Supply Specification Sheet 2 of 4...

Page 161: ...161 Slide Scanner Repair Manual System Diagrams Power Supply Specification Sheet 3 of 4...

Page 162: ...162 Slide Scanner Repair Manual System Diagrams Power Supply Specification Sheet 4 of 4...

Page 163: ...163 Slide Scanner Repair Manual System Diagrams AC Inverter PC Board...

Page 164: ...164 Slide Scanner Repair Manual System Diagrams Image Sensor CCD PC Board Sheet 1 of 3...

Page 165: ...165 Slide Scanner Repair Manual System Diagrams Image Sensor CCD PC Board Sheet 2 of 3...

Page 166: ...166 Slide Scanner Repair Manual System Diagrams Image Sensor CCD PC Board Sheet 3 of 3...

Page 167: ...167 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 1 of 8...

Page 168: ...168 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 2 of 8...

Page 169: ...169 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 3 of 8...

Page 170: ...170 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 4 of 8...

Page 171: ...171 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 5 of 8...

Page 172: ...172 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 6 of 8...

Page 173: ...173 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 7 of 8...

Page 174: ...174 Slide Scanner Repair Manual System Diagrams SS35 SS35 ES Main Controller PC Board Sheet 8 of 8...

Page 175: ...175 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board Sheet 1 of 9...

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Page 184: ...Slide Scanner Repair Manual Appendix 184 Appendix...

Page 185: ...Slide Scanner Repair Manual Appendix 185 Appendix Contents SS35 35ES Firmware Hardware Update History 186...

Page 186: ...A 82 Fix for timing problem in Eliminates scanner hang up new ASIC s during scanning Filter wheel change Changed filter wheel neutral density filter from 0 5 to 0 6 to ensure scanning uniformity with...

Page 187: ...shield power supply and inverter induced analog noise Eliminates streaks in scans that was caused by the noise D 1 00 Began use of mask Added hardware diagnostics programmed firmware E 1 00 Added lig...

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