Polaroid SprintScan SS35 Repair Manual
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Polaroid SprintScan SS35 Repair Manual

Polaroid SprintScan SS35 Repair Manual

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Repair Manual
SprintScan Slide Scanner
SS35, SS35 ES, SS35 PLUS
October 1997
Americas Business Center
Technical Services
201 Burlington Road
Bedford MA 01730
TEL: 1.781.386.5309
FAX: 1.781.386.5988

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Summary of Contents for Polaroid SprintScan SS35

  • Page 1 Repair Manual SprintScan Slide Scanner SS35, SS35 ES, SS35 PLUS October 1997 Americas Business Center Technical Services 201 Burlington Road Bedford MA 01730 TEL: 1.781.386.5309 FAX: 1.781.386.5988...

  • Page 2: Table Of Contents

    Slide Scanner Repair Manual Table of Contents Table of Contents Purpose of Manual ....................7 Manual Organization ....................7 Other Documents Required for Repair ..............7 Important Safety Instructions ................. 8 1. Scanner Overview ....................9 Description ......................11 Applications ......................12 Features .......................
  • Page 3 Slide Scanner Repair Manual Table of Contents Secondary Color Correction ASIC ..............47 Color Modes ....................48 Scanner Control ....................48 CCD Driver...................... 48 Transporter Driver ................... 48 LED Indicator Driver..................48 Filter Wheel Driver ..................49 System Interface ....................49 3.
  • Page 4 Slide Scanner Repair Manual Table of Contents Chassis Assembly ..................... 80 Removal ......................80 Installation ....................... 81 Power Supply PC Board ..................82 Removal ......................82 Installation ....................... 83 AC Inverter PC Board ..................84 Removal ......................84 Installation ....................... 85 Replacement of Components ................
  • Page 5 Slide Scanner Repair Manual Table of Contents Test Results ...................... 126 Stored Test Results ................... 127 Pausing or Stopping Scanner Test..............128 Pausing a Test in Progress ................128 Stopping a Test in Progress ................128 IPT Scanner Tests - Understanding Test Results ..........129 Initialization Test ....................
  • Page 6 Slide Scanner Repair Manual Table of Contents Uncorrected Light Uniformity Test ..............153 Illumination ......................155 Uncorrected Dark Uniformity Test ..............155 Bad Pixel Flag ....................155 Uniformity II Stand - Alone Test Control Panel ........... 156 6. System Diagrams ....................157 Power Supply Specification (Sheets 1 - 4) ............

  • Page 7: Purpose Of Manual

    Slide Scanner Repair Manual Table of Contents Purpose of this Manual This Repair Manual is intended as a training and reference guide for the Polaroid and Polaroid-authorized technical personnel servicing the SS35/SS35 ES/SS35 PLUS slide scanner's. Organization of this Repair Manual Scanner Overview.

  • Page 8: Important Safety Instructions

    Slide Scanner Repair Manual Table of Contents IMPORTANT SAFETY INSTRUCTIONS When using the Slide Scanner, basic safety precautions should always be followed including the following: • Read and understand all instructions before using. • Position the cord so that it will not be tripped over, pulled, or contact hot or sharp surfaces. •...

  • Page 9: Scanner Overview

    Slide Scanner Repair Manual Scanner Overview 1. Scanner Overview...
  • Page 10 Slide Scanner Repair Manual Scanner Overview 1. Scanner Overview 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: Description

    Slide Scanner Repair Manual Scanner Overview Description This section of the Repair Manual gives an overview of the SprintScan 35, the SprintScan 35 ES, and the SprintScan 35 PLUS slide scanner. It only provides the necessary information pertaining to features and specifications for each slide scanner. For detailed information pertaining to setting up the slide scanner, installing and starting their software, assigning SCSI ID's and checking SCSI connections, scanning transparencies, and using application software, refer to the applicable slide scanner User Guide.

  • Page 12: Applications

    Slide Scanner Repair Manual Scanner Overview Applications Table 1-1 indicates a partial list of applications for each slide scanner. For a more detailed list of applications for each slide scanner, refer to the applicable slide scanner User Guide. Table 1-1. Slide Scanner Applications Applications\User Groups SS 35/SS 35 ES SS 35 PLUS...
  • Page 13 Slide Scanner Repair Manual Scanner Overview SprintScan 35/35ES SprintScan 35 PLUS Figure 1-1. Slide scanners...

  • Page 14: Features

    Slide Scanner Repair Manual Scanner Overview Features Table 1-2 list and describes the features of the slide scanners (Figure 1-2). Table 1-2. Slide Scanner Features Feature Description Power LED Indicator This green LED indicator lights to indicate when the slide scanner power is turned on. Note: During power-up the slide scanner initiates its self-test mode.
  • Page 15 Slide Scanner Repair Manual Scanner Overview Table 1-2. Slide Scanner Features (Cont'd) Feature Description Power Receptacle Standard receptacle with ground. Power Cord Standard cord with ground. Power Fuse Receptacle The fuse receptacle contains two fuses: active and spare. (SS35 Only) The active fuse protects the slide scanner's electronics from any sudden surges or overloads.
  • Page 16 Slide Scanner Repair Manual Scanner Overview Table 1-2. Slide Scanner Features (Cont'd) Feature Description SCSI Receptacles SS35/SS35 ES: (Top and Bottom) Two (2) 50-pin standard SCSI receptacles. SS35 PLUS: One (1) 50-pin standard SCSI receptacle. One (1) 25-pin standard SCSI receptacle. SCSI Cable This cable (25-pin and 50-pin connector ends) connects the slide scanner to the host computer.
  • Page 17 Slide Scanner Repair Manual Scanner Overview Table 1-1. Scanner Features (Cont'd) Feature Description SCSI Terminator Warning: If the slide scanner is being added to an (Cont'd) existing SCSI device chain, make sure that only two SCSI terminators (internal or external) exist in the SCSI device chain. More than two SCSI terminators in the SCSI device chain can damage the host computer or the devices.
  • Page 18 Slide Scanner Repair Manual Scanner Overview Table 1-1. Scanner Features (Cont'd) Feature Description SprintScan 35 Software Included with the slide scanner. This software includes the SprintScan application and the Scanner Control Panel which is a TWAIN source driver. Note: TWAIN is a software protocol that allows applications to use image-acquisition devices, such as the SprintScan 35 Slide Scanner and other image digitizers.
  • Page 19 Slide Scanner Repair Manual Scanner Overview Front Power Access Slot LED Indicator Ready LED Indicator Side Access Slot Release Button Power SCSI Rear ID Selector Receptacle SCSI Receptacles Power On/Off (Top and Bottom) (1/0) Switch SS35/SS35 ES Fuse Receptacle SCSI Receptacles SCSI (Top and Bottom) Terminator Switch...

  • Page 20: Specifications

    Slide Scanner Repair Manual Scanner Overview Specifications Physical: Dimensions 5 x 7 x 10 inches (13 x 18 x 26 cm) Weight approximately 5.5 pounds (2.5Kg) Power: Operating Voltage 105 - 130 VAC @ 48 - 62 Hz (USA) 90 - 110 VAC @ 48 - 62 Hz (Japan) 190 - 210 VAC @ 48 - 62 Hz 210 - 260 VAC @ 48 - 62 Hz (Europe) Idle Power...
  • Page 21 Slide Scanner Repair Manual Scanner Overview Host Computer Platforms: Macintosh IBM PC or Equivalent Operating Systems - System 7.1 or higher MS Windows 3.1 or higher, Windows 95, Windows NT 4.0 Hardware Requirements - Power PC Mac, Mac II, Minimum 386SX @16Mhz Quadra or Centris with Recommended 486 @ 33Mhz floating point...

  • Page 22: Operation

    Slide Scanner Repair Manual Scanner Overview Operation The following operational flow diagrams (Figures 1-3 through 1-6) briefly describe how to setup the slide scanners, install and start their software, assign their SCSI ID value, and scan a mounted or unmounted 35 mm transparency using the SprintScan 35 application software. Each operational flow diagram is intended to be used only as a Quick reference for the repair person.

  • Page 23: Installing The Software

    Slide Scanner Repair Manual Scanner Overview Installing the Software Windows Version Mac Version Install Install Adaptec Adobe PhotoShop EZ-SCSI Lite/EZ-SCSI Software Software Adobe Photoshop: EZ-SCSI Lite/EZ-SCSI: • Automatically transfers • Configures host computer final scans into Adobe for SCSI adapter PhotoShop •...

  • Page 24: Starting The Software

    Slide Scanner Repair Manual Scanner Overview Starting the Software Windows Version Mac Version Click on Turn On Scanner, Click on Adobe PhotoShop then Host Adobe PhotoShop Click on Click on File Menu File Menu Click on Click on Import Import/Acquire Select Select Twain_32 Source,...

  • Page 25: Scanning The Slide/Film Strip

    Slide Scanner Repair Manual Scanner Overview Scanning the Slide/Film Strip Scan Unmounted Scan Mounted Slide Film Strip Insert Mounted Slide Open Carrier into Scanner Top Slot Place Unmounted Slide Film Strip into Carrier Insert Carrier into Scanner Right-Side Slot Scan Slide/Film Strip Note: Refer to the applicable slide scanner User's Guide for information pertaining to scanning a mounted slide, unmounted slide or film strip.

  • Page 26: Self-Check Routines

    Slide Scanner Repair Manual Scanner Overview Self-Check Routines The slide scanner provides two internal self-check software routines that are used to automatically check (verify) its operation. The two internal self-check software routines are: • Self-Test (Power-Up) • Calibration Self-Test (Power-Up) Routine When the slide scanner is turned on, the self-test (power-up) routine is automatically invoked.
  • Page 27 Slide Scanner Repair Manual Scanner Overview Self-Test Initializes (Resets) System Electronics Filter Transporter SCSI ASIC's Wheel Converters Transporter Seeks Calibration Window Self-Test Completed Ready LED Ready LED Lights Steady Continually Blinks Self-Test Self-Test Failed Passed Run LabVIEW Test (See Section 5 for Details) For SS35 PLUS, self-test of these components only occurs after the host software downloads (initializes) programmable code.

  • Page 28: Calibration

    Slide Scanner Repair Manual Scanner Overview Calibration For SS35/SS35 ES slide scanners, the first calibration is performed at the first requested scan. It is also performed when the slide scanner detects a specified amount of drift in the lamp or front end during subsequent scans.
  • Page 29 Slide Scanner Repair Manual Scanner Overview SS35/SS35 ES Calibration Routine Start Start First Scan Subsequent Scans Check Calibrate Drift in Lamp Front End Pass Fail Check and adjust, if necessary: • Base line integration time to ensure a minimum signal and mitigation of saturation •...
  • Page 30 Slide Scanner Repair Manual Scanner Overview SS35 PLUS Calibration Routine Start Scan Calibrate Check and adjust, if necessary: • Base line integration time to ensure a minimum signal and mitigation of saturation • Analog gain and offset for base line neutral settings •...

  • Page 31: Functional Description

    Slide Scanner Repair Manual Functional Description 2. Functional Description...
  • Page 32 Slide Scanner Repair Manual Functional Description 2. Functional Description Contents Scanner Process Overview ................33 Scanner Transporter ..................34 Scanner Optics ....................37 Scanner Electronics ................... 38 Power Supply PC Board ..................38 Main Controller PC Board Power Distribution ............ 40 AC Inverter PC Board ..................

  • Page 33: Scanner Process Overview

    Slide Scanner Repair Manual Functional Description Scanner Process Overview Upon command from the host computer, a scan operation is initiated. When this scan operation is initiated, the microcontroller on the main controller PC board coordinates all the slide scanner's electronic systems in digitizing, color-correcting and sharpening the image, then transmitting it to the host's memory (Figure 2-1).
  • Page 34 Slide Scanner Repair Manual Functional Description Table 2-1 gives a functional description of each of the blocks in the simplified scanning block diagram in Figure 2-1. For a more detailed description of the scanner PC boards refer to the following paragraphs in this section of the Repair Manual. Table 2-1.
  • Page 35 Slide Scanner Repair Manual Functional Description Table 2-1. Component Functions (Cont'd) Component Functions Image Sensor PC Board Provides biasing and clocking for the CCD array. It also buffers the CCD outputs and multiplexes them onto a single line. Video Signal The VSP processes the buffered analog signal.
  • Page 36 Slide Scanner Repair Manual Functional Description Table 2-1. Component Functions (Cont'd) Component Functions Secondary Color Secondary color correction is performed by this Correction ASIC ASIC. It performs operations based on the color pixel triplets, including color processing, adaptive sharpening, and color mode. SCSI Interface Used to communicate with the host computer, down loads signal processing parameters to the slide...

  • Page 37: Scanner Transporter

    Slide Scanner Repair Manual Functional Description Scanner Transporter The slide scanner transporter system consists of a 35 mm transparency holder, a transporter stepper motor and a photo-sensor located on the front of the main controller PC board. Upon command from the microcontroller, the transporter system drives the 35 mm transparency being scanned through the scanner's illuminated scanning area while the lamp and optics projects and focuses the image line-by-line onto the CCD sensor on the image sensor PC board.

  • Page 38: Scanner Electronics

    Slide Scanner Repair Manual Functional Description Upon command from the host computer, a scan operation is initiated. Once the scan is initiated, the microcontroller on the main controller PC board coordinates all scanner functions (digitizing input image data, color correcting, and sharpening the input image data, etc.) and then transmits the image to the host computer.
  • Page 39 Slide Scanner Repair Manual Functional Description The regulated output voltages from this commercial low profile switching power supply are used to power: • Main Controller PC Board • AC Inverter PC Board • Image Sensor (CCD) PC Board Main Controller PC Board Digital Electronics •...

  • Page 40: Main Controller Pc Board Power Distribution

    Slide Scanner Repair Manual Functional Description Main Controller PC Board Power Distribution The main controller PC board contains voltage regulators that are used to power the RGB reference circuitry and the slide scanner's cooling fan. Table 2-1 shows function of each voltage regulator.

  • Page 41: Ac Inverter Pc Board

    Slide Scanner Repair Manual Functional Description AC Inverter PC Board The AC inverter PC board generates the necessary AC voltage to power the slide scanner's lamp. It consists of a switching inverter network (Q1 and Q2), a transformer (T1), and a lamp. Refer to simplified block diagram (Figure 2-4) and the AC inverter PC board schematic in Section 6 of this Repair Manual when reading the description of the AC inverter PC board.

  • Page 42: Image Sensor Pc Board

    Figure 2-5. Image Sensor PC board CCD Image Sensor The CCD image sensor is Polaroid's custom 4000 element tri-linear (RGB) time-delay integration device. It has built in dark reference pixels and independently addressable horizontal clocks. Lines of red, green, and blue image data are acquired simultaneously and clocked out sequentially in an order determined by the specified application.

  • Page 43: Associated Analog Signal Processing Support Circuitry

    Slide Scanner Repair Manual Functional Description Associated Analog Signal Processing Support Circuitry The CCD image sensor is clocked out on a line-by-line basis. Global timing signals (line sync, color sync, and color order) are controlled by the microcontroller on the main controller PC board.
  • Page 44 Slide Scanner Repair Manual Functional Description Sensor (CCD) Board (HCLKS, VCLKS, RG, SEL0, SEL1) SRAM Timing CSYNC LSYNC SYSCLK Secondary Primary Color Correction Data IN Correction ASIC ASIC DRAM (Buffer) Programming Communications SRAM MicroController SCSI Transporter Stepper Motor Transporter Photo-Interrupter SCSI 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4...

  • Page 45: Analog Signal Processing

    Slide Scanner Repair Manual Functional Description Analog Signal Processing The VSP (Figure 2-5) contains a preamplifier with voltage controlled gain, a correlated double sampler with offset adjustment, and an output amplifier. It also contains three individually controlled sample-and-hold amplifiers and two 3-to-1 multiplexers which facilitate dark level adjustment and white balance correction.

  • Page 46: Dram Controller (Buffer)

    Slide Scanner Repair Manual Functional Description The features of the primary correction ASIC in order of process are: • Dark Level Uniformity Correction pixel-by-pixel. • Brightness Correction with a potential correction range 0 to 1.99 (depending on implementation) with 2 resolution.

  • Page 47: Secondary Color Correction Asic

    Slide Scanner Repair Manual Functional Description as three FIFO buffers. The FIFO buffers are used for color realignment as well as a transfer buffer. In the event that the scanned image requires less than full buffer capacity, the FIFO buffer will be used for preview purposes as well, and may be re-transferred out, through the color correction circuitry multiple times to preview the effects of the post-processing.

  • Page 48: Color Modes

    Slide Scanner Repair Manual Functional Description Color Modes The main controller PC board nominally delivers 24-bit color to the host computer. Also available is an 8-bit gray scale and 8-bits with selectable drop-out color. Gray data is provided in the form of a luminance signal derived from the RGB triplets. Scan times are identical to full color scans at the same resolution, but SCSI data rates are 1/3 the rate of the same scan in 24-bit color.

  • Page 49: Filter Wheel Driver

    Slide Scanner Repair Manual Functional Description Filter Wheel Driver The main controller PC board provides a filter wheel driver that receives signals from the microcontroller. These signals directly drive the filter wheel stepper motor to its applicable position during scanning and calibration. A photo-sensor (U 4) provides the reference for properly positioning the filter wheel.

  • Page 50: Calibration And Adjustments

    Slide Scanner Repair Manual Calibration and Adjustments 3. Calibration and Adjustments...
  • Page 51 Slide Scanner Repair Manual Calibration and Adjustments 3. Calibration and Adjustments Contents Required Tools and Equipment ................. 52 Warnings and Precautions ................53 Voltages ....................... 53 Electrostatic Discharge Warning ................53 Inspection and Cleaning ..................54 Checking Scanner Self-Test (Power-Up) ............56 Adjustments ......................

  • Page 52: Required Tools And Equipment

    Slide Scanner Repair Manual Calibration and Adjustments Required Tools and Equipment 1. Tools: • Standard tool kit • 1.5mm and 2mm hex Allen wrench • Lens adjustment tool • Plastic tweaking tool • Dental pick or equivalent 2. Safety Equipment: •...

  • Page 53: Warnings And Precautions

    Slide Scanner Repair Manual Calibration and Adjustments Warnings and Precautions Voltages The adjustment and alignment procedures require that the slide scanner be powered with the top housing removed. Use extreme caution to avoid electrical shock from the points shown in Figure 3-1.

  • Page 54: Inspection And Cleaning

    Slide Scanner Repair Manual Calibration and Adjustments Inspection and Cleaning Whenever disassembling a slide scanner for adjustment or parts replacement, inspect the slide scanner for dust and debris. If necessary, clean the slide scanner to assure that dust in the optical path does not degrade its performance.
  • Page 55 Slide Scanner Repair Manual Calibration and Adjustments Table 3-1. Inspection (Cont'd) Component/Assembly Inspection Procedure Filter Wheel Check filter wheel to make sure: (For original SS35 and SS35 ES up to serial • Tab is properly positioned (top edge-to-top edge) in the no.

  • Page 56: Checking Scanner Self-Test (Power Up)

    Slide Scanner Repair Manual Calibration and Adjustments Checking Scanner Self-Test (Power-Up) 1. Setup the slide scanner and host computer as explained in the provided User's guide. WARNING • When turning on the system always make sure that the slide scanner is turned on first and then the host computer. •...
  • Page 57 Slide Scanner Repair Manual Calibration and Adjustments Self-Test Initilizes (Resets) System Electronics 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 Filter 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6...
  • Page 58 Slide Scanner Repair Manual Calibration and Adjustments Calibration First Scan Subsequent Scans Check First Calibration Drift in Lamp Front End Pass Fail Check and adjust, if necessary: • Base line integration time to ensure a minimum signal and mitigation of saturation •...

  • Page 59: Adjustments

    Slide Scanner Repair Manual Calibration and Adjustments Adjustments Power Supply Note: The +15 Vdc and -15 Vdc voltages are dependent on the load that is being drawn on the +5 Vdc line. To make sure that the operating voltage are properly set, the +5 Vdc power supply voltage must be adjusted to +5.0 +/- 0.1 Vdc.

  • Page 60: Focus/Magnification

    Slide Scanner Repair Manual Calibration and Adjustments Focus and Magnification Initial Test Setup To perform a focus adjustment, the slide scanner video signal processor (VSP) must be turned on. Normally, it shuts down 15 minutes after initial power-up if the slide scanner is not in use. To keep the VSP turned on, perform the following steps.
  • Page 61 Slide Scanner Repair Manual Calibration and Adjustments Focus (Non-Uniformity) Adjustment 1. Setup the dual trace oscilloscope as follows: • Time Base - 200 usec/div • Amplitude - 500 mv/div 2. Connect the dual trace oscilloscope to the applicable main controller board test points (Figure 3-5) as follows: Note: Figure 3-6 displays the RGB raw output of the VSP before the focus target is inserted in the light path.
  • Page 62 Slide Scanner Repair Manual Calibration and Adjustments Figure 3-6. RGB raw output of VSP 3. Place the focus/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.
  • Page 63 Slide Scanner Repair Manual Calibration and Adjustments Figure 3-8. Expanded red waveform 4. Manually rotate the lead screw of the chassis assembly until the focus/magnification target is properly positioned (Figure 3-9) in the viewing area of the slide scanner. Note: Figure 3-8 displays an expanded Red waveform after the target is inserted. The oscilloscope time base settings are adjusted to view only the Red portion of the VSP output.
  • Page 64 Slide Scanner Repair Manual Calibration and Adjustments 6. Set oscilloscope to intensify the left side (1,2 & 3) of the waveform (Figure 3-10). Figure 3-10. Left waveform intensified 7. Intensify the left and then the right side (4, 5 & 6) of the waveform (Figure 3-11). 8.
  • Page 65 Slide Scanner Repair Manual Calibration and Adjustments Notes: • If the slide scanner is properly focused, the oscilloscope displays the waveform signal (Figure 3-12) of the focus and magnification target for one color channel. Amplitude of all line pair sets should all be uniform. •...
  • Page 66 Slide Scanner Repair Manual Calibration and Adjustments 9. If not focused properly, adjust lens as follows: • Using a 1.5mm hex wrench, loosen the setscrew (Figure 3-13) that secures and positions the lens in its lens block assembly. • Using your fingers, slightly reposition the lens in or out until the amplitude of all line pair sets in the waveform signal are uniform (Figure 3-12).
  • Page 67 Slide Scanner Repair Manual Calibration and Adjustments Magnification Adjustment Note: To check magnification, measure the delta time between the single vertical lines between each set of line pairs of the waveform signal. Use the dual time delay function of the oscilloscope.
  • Page 68 Slide Scanner Repair Manual Calibration and Adjustments SS35/SS35 ES Remove Controller Board Lens Block Screws Optical Block Screw Note: For original SS35 and SS35 ES up to serial no. B6xxxxxxD. SS35 PLUS Remove Controller Board Lens Block Screws Optical Block Screw Note: For SS35 ES from serial no.

  • Page 69: Transporter Photo-Sensor Alignment

    Slide Scanner Repair Manual Calibration and Adjustments Transporter Photo-Sensor Tab Alignment Note: This alignment procedure must be performed each time the main controller board is removed during disassembly or when it is replaced. 1. Manually rotate the lead screw of the chassis assembly until the transporter photo-sensor tab is properly centered inside the middle of the transporter's photo-sensor (U1) on the main controller PC board (Figure 3-15) .

  • Page 70: Filter Wheel Set Photo-Sensor Tab Alignment ( Only For Slide Scanner With Filter Wheel)

    Slide Scanner Repair Manual Calibration and Adjustments Filter Wheel Photo-Sensor Tab Alignment (Only for Slide Scanner with Filter Wheel) Notes: • Filter Set Assembly w/Stepper Motor used on original SprintScan 35. Also used on SprintScan 35 ES up to serial no. B6xxxxxxD. •...
  • Page 71 Slide Scanner Repair Manual Calibration and Adjustments Filter Wheel Photo-Sensor Main Controller PC Board Figure 3-16. Filter wheel photo-sensor tab alignment...

  • Page 72: Parts Replacement

    Slide Scanner Repair Manual Parts Replacement 4. Parts Replacement...
  • Page 73 Slide Scanner Repair Manual Parts Replacement 4. Parts Replacement Contents Required Tools and Equipment ................74 Electrostatic Discharge Warning................. 74 Inspection and Cleaning ..................74 Disassembly/Assembly of Electrical and Mechanical/Optical Assemblies ..75 Top Housing ...................... 75 Removal......................75 Installation ...................... 77 Main Controller PC Board..................

  • Page 74: Required Tools And Equipment

    Slide Scanner Repair Manual Parts Replacement Required Tools and Equipment • Anti-static mat and wrist strap • Lens cleaning tissue • Dust and static free wiping cloth (Texwipe Type TX309 - Manufacture: Texwipe Co., Upper Saddle River, N.J., Phone 201-327-5577 / 800-284-5577) •...

  • Page 75: Disassembly/Assembly Of Electrical And Mechanical/Optical Assemblies

    Slide Scanner Repair Manual Parts Replacement Disassembly/Assembly of Electrical and Mechanical/Optical Assemblies This section of the Repair Manual describes slide scanner disassembly/assemblies procedures. Before performing any of the procedures described in this section , make sure that the slide scanner has been turned off and that the power cord has been disconnected. To prevent any chance of electric shock, 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.
  • Page 76 Slide Scanner Repair Manual Parts Replacement 3. Remove the scanning lamp (Figure 4-2). Lamp 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. The front door latch at the base of the top housing may fall off - Do not loose the front door latch.

  • Page 77: Installation

    Slide Scanner Repair Manual Parts Replacement Installation 1. Install the front door latch making sure it is properly seated in the top housing (Figure 4-3). 2. Install the top housing making sure that the tabs on the base of the upper housing align with the slots at the front and rear of the bottom case.

  • Page 78: Main Controller Pc Board

    Slide Scanner Repair Manual Parts Replacement Main Controller PC Board Removal 1. Remove the top housing. 2. Disconnect all electrical connectors/cables from the main controller PC board. Lift out the main controller PC board (Figure 4-5). Electrical cables to be disconnected: SS35 SS35 ES SS35 PLUS...

  • Page 79: Installation

    Slide Scanner Repair Manual Parts Replacement 3. Remove all screws securing the main controller PC board to the bottom case (Figure 4-6). For the SS35 PLUS, remove the four (4) fasteners securing the two (2) SCSI connectors Main Controller Main Controller PC Board PC Board SCSI...

  • Page 80: Chassis Assembly

    Slide Scanner Repair Manual Parts Replacement Chassis Assembly Removal 1. Remove the top housing. 2. Remove the main controller PC board. 3. Remove the transporter spring. 4. Remove the three (3) screws securing the chassis assembly to the bottom case (Figure 4-7). 5.

  • Page 81: Installation

    Slide Scanner Repair Manual Parts Replacement Installation 1. Install the chassis assembly. 2. Install and tighten the three (3) screws that secures the chassis assembly to the bottom case. 3. Reconnect the transporter spring. 4. Install the main controller PC board. 5.

  • Page 82: Power Supply Pc Board

    Slide Scanner Repair Manual Parts Replacement Power Supply PC Board Removal 1. Remove the top housing. 2. Remove the main controller PC board. 3. Remove the chassis assembly. 4. If applicable, remove the power supply shield. 5. Disconnect all electrical connectors/cables from the power supply PC board. Electrical cables to be disconnected: •...

  • Page 83: Installation

    Slide Scanner Repair Manual Parts Replacement Installation 1. Install the power supply PC board. 2. Install and tighten the four (4) screws that secures the power supply PC to the bottom case. 3. Connect all electrical connectors/cables of the power supply PC board . Electrical cables to be reconnected: •...

  • Page 84: Ac Inverter Pc Board

    Slide Scanner Repair Manual Parts Replacement AC Inverter PC Board Note: The AC inverter PC board contains its own fuse to protect it from electrical surges. Refer to the replacement procedures in this Section of the Repair Manual for details on how to remove and replace it. Removal 1.

  • Page 85: Installation

    Slide Scanner Repair Manual Parts Replacement Installation 1. Reconnect the four (4) electrical cables from the scanning lamp (Blue - BL, White - WH, Red - RE, Orange - OR) to the applicables pins on the AC inverter PC board. 2.

  • Page 86: Replacement Of Components

    Slide Scanner Repair Manual Parts Replacement Replacement of Components Scanning Lamp Note: The scanning lamp should be replaced when: • Begins to flicker or becomes dim • Edges become blackened • Center becomes spotty • Ready LED fails to come on and a lamp error message appears during an attempted scan or preview.

  • Page 87: Power Supply Pc Board

    Slide Scanner Repair Manual Parts Replacement Power Supply PC Board Fuse 1. Remove the top housing. 2. Remove the main controller PC board. 3. Using fuse pullers, remove the blown fuse (Figure 4-10) and then replace it with a new one.

  • Page 88: Ac Inverter Pc Board

    Slide Scanner Repair Manual Parts Replacement AC Inverter PC Board Fuse 1. Remove the top housing. 2. Remove the AC inverter PC board. 3. Unsolder the AC inverter fuse (Figure 4-11) and then replace it with a new one. Notes: •...

  • Page 89: Scsi Interface (Terminator Power )

    Slide Scanner Repair Manual Parts Replacement SCSI Interface (Terminator Power) Fuse 1. Remove the top housing. 2. Unsolder the SCSI interface fuse (Figure 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.

  • Page 90: Filter Wheel Stepper Motor (Only For Slide Scanner With Stepper Motor)

    Slide Scanner Repair Manual Parts Replacement Filter Wheel Stepper Motor (Only for Slide Scanner with Filter Wheel) Note: For original SS35 and SS35 ES up to serial no. B6xxxxxxD. 1. Remove the top housing. 2. Disconnect connector J4 from the main controller PC board. 3.

  • Page 91: Transporter Stepper Motor

    Slide Scanner Repair Manual Parts Replacement Transporter Stepper Motor 1. Remove the top housing. 2. Remove the main controller PC board. 3. If applicable, remove the two (2) screws that secures the light tunnel to the chassis mount and then lift off the light tunnel. 4.
  • Page 92 Slide Scanner Repair Manual Parts Replacement SS35/SS35 ES Nut Guide Note: For original SS35 and SS35 ES up to serial no. B6xxxxxxD. Transporter Stepper Motor Lead Screw Nut Chassis Assembly SS35 ES/SS35 PLUS Note: For SS35 ES from serial no. Nut Guide B6xxxxxxE and SS35 PLUS Transporter...

  • Page 93: Ccd Board

    Slide Scanner Repair Manual Parts Replacement CCD Board Caution The CCD sensor PC board is particularly sensitive to static discharge. Be sure to use an anti-static mat and a wrist strap during this procedure. 1. Remove the top housing. 2. For SS35/SS35 ES Remove the two (2) screws that secures the back plate to the bottom case.
  • Page 94 Slide Scanner Repair Manual Parts Replacement CCD Mounting Block Lens Block Assembly Sensor PC Board Figure 4-15. Replacing CCD sensor PC board 9. Install the replacement CCD sensor board onto the CCD mounting block . Notes: • Use a diagonal pattern tightening method when installing the CCD sensor PC board onto the CCD mounting block.
  • Page 95 Slide Scanner Repair Manual Parts Replacement 13. Connect the slide scanner to the host computer and run the Stand-Alone Motion test that is part of the LabVIEW IPT test. 14. Using the tilt number test result (from the Motion test) make a fine adjustment (up or down) to the CCD sensor PC board to achieve correct tilt.

  • Page 96: Diagnostics And Troubleshooting

    Slide Scanner Repair Manual Diagnostics and Troubleshooting 5. Diagnostics and Troubleshooting...
  • Page 97 Slide Scanner Repair Manual Diagnostics and Troubleshooting 5. Diagnostics and Troubleshooting Contents 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 Quality Test Outline ...................
  • Page 98 Slide Scanner Repair Manual Diagnostics and Troubleshooting 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 1 ........................

  • Page 99: Error Messages

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Error Messages The scanner is capable of generating four (4) types of error messages: • Diagnostic (Digital Hardware) • Operational • Calibration • Miscellaneous The generated error messages are displayed cumulatively in hexadecimal by the host computer. They are grouped as four (4) consecutive hexadecimal bytes in least significant byte (LSB) to most significant byte (MSB).

  • Page 100: Diagnostic (Digital Hardware)

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Diagnostic (Digital Hardware) The two (2) hexadecimal digits assigned to diagnostic (digital hardware) type errors indicate that the main controller (PC) board is defective. To correct this problem, replace the main controller (PC) board. Refer to Table 5-2 for a list and definition of all diagnostic (digital hardware) type error codes.

  • Page 101: Operational

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Operational The two (2) hexadecimal digits assigned to operational type errors indicate a failure in the scanning process. Refer to Table 5-3 for a list and definition of all operational type error codes. Table 5-3.
  • Page 102 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-3. Operational Error Messages (Cont'd) Hex Code Error Definition Probable Cause Action 00 00 08 00 Image flow incorrect. Conflict between host Check for: Host asked for more and slide scanner data than slide concerning amount of •...
  • Page 103 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-3. Operational Error Messages (Cont'd) Hex Code Error Definition Probable Cause Action 00 00 40 00 SCSI timed out while Missed communication Check for: sending data to host between host computer computer. and slide scanner.
  • Page 104 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-3. Operational Error Messages (Cont'd) Hex Code Error Definition Probable Cause Action 00 00 80 00 (Cont'd) • Improperly connected cable from power supply to J5 on main controller PC board. • Improperly connected ribbon cable from main controller PC board to sensor (CCD) PC board.
  • Page 105 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-3. Operational Error Messages (Cont'd) Hex Code Error Definition Probable Cause Action 20 00 00 00 DSPBSYERROR: Defective Main Replace Main DSP busy when it Controller PC Board. Controller PC Board. should not. 40 00 00 00 DSPCHKSVERROR: Missed communication...

  • Page 106: Calibration

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Calibration The two (2) hexadecimal digits assigned to calibration type errors indicate a failure of the slide scanner's self-test (calibration) diagnostics routine. The first calibration is performed at the first requested scan. It is also performed when the slide scanner detects a specified amount of drift in the lamp or front end during subsequent scans.
  • Page 107 Slide Scanner Repair Manual Diagnostics and Troubleshooting Video Signal (Calibration Position) Video Signal (Dark Level Position) Figure 5-1. Video signal...
  • Page 108 Slide Scanner Repair Manual Diagnostics and Troubleshooting It should be checked with: • SCSI ID set to 8 (Keeps video signal turned on - SS35 PLUS only) Note: The SCSI ID setting is not relevant to SS35/SS35 ES to keep video signal turned on.
  • Page 109 Slide Scanner Repair Manual Diagnostics and Troubleshooting Video Output Signal Shows Irregularities Check for: • Obstructions in Optical Path • Lamp Brightness and Uniformity • Transporter Movement 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 •...
  • Page 110 Slide Scanner Repair Manual Diagnostics and Troubleshooting Replace Main Controller PC Board Rescan No Calibration Calibration Bad Pixel Error Error Error Slide Scanner Replace Sensor (CCD) Assembly Re-adjust Focus and Magnification (See Section 3 of Repair Manual) LabVIEW Test Figure 5-3. Calibration error flow diagram...
  • Page 111 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-4. Calibration Error Messages Hex Code Error Definition Probable Cause Action 00 01 00 00 Light source or front end Defective lamp. Replace Lamp. can not be corrected during slide scanner's initial calibration.
  • Page 112 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-4. Calibration Error Messages (Cont'd) Hex Code Error Definition Probable Cause Action 00 10 00 00 Light source too dim. Check lamp, ND filter, and optical path for (Cont'd) any obstructions. If necessary, replace lamp.

  • Page 113: Labview Image Performance Test (Ipt) Version 1.02-Mac

    (VI’s). A number VI’s are combined to acquire data from 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.
  • Page 114 Measurements window on the front panel. Refer to Table 5-4 at the back of this section for a detailed explanation of the Scanner Tester front panel designed by Polaroid’s engineering group using the LabVIEW software and the Concept VI Image Processing Library (Graftek).
  • Page 115 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-5. Scanner Tester Panel Item Box Description Scanner SN Used to enter the serial number (ID) of the slide scanner to be tested. Station Name If applicable, used to enter the test station name. CCD Configuration Allows the user to update or leave unchanged, the CCD configuration.
  • Page 116 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-5. Scanner Tester Panel (Cont’d) Item/Box Description CT Test Sequence P/F (Pass/Fail) - Indicates whether or not a selected image (Cont’d) quality test passed (P) or failed (F). Show Image Used to show the test scans as the Scanner Tester operates. If selected, a window appears showing the test scans as the Scanner Tester operates.
  • Page 117 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-5. Scanner Tester Panel (Cont’d) Item/Box Description Stop Clicking the mouse on this box completely stops the slide scanner's test sequence. The black arrow changes to a white arrow indicating that the run-time version of LabVIEW stops running.

  • Page 118: Image Quality Test Outline

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Image Quality Test Outline When the Scanner Tester is invoked, it performs and verifies the following image quality tests: Geometric Type Test using GMT Target • Dist & Mag (Distortion and Magnification) • L (Left) Resolution •...

  • Page 119: Changes To Ipt Test Since Labview Version 3.1 (Summary)

    Test results are automatically stored in a spreadsheet format file folder Reporting named Polaroid Test Results. A single row in the spreadsheet is given to each run of a test. The data is compatible with MS Excel. An upgrade is added to the test to improve the setting and reporting of Configuration the CCD Configuration.

  • Page 120: Using Scanner Tester (W)

    True Color Video Card (24-bit color) with at least 800 x 600 resolution Software: LabVIEW Run-Time IPT test version 1.02 or higher Test Targets and Related Documents: • Geometric (GMT) target P/N 1E6682A • Color (CT) target P/N 1E4316A • Polaroid SS35 and SS35 Plus Image Performance Specification...

  • Page 121: Initial Setup - Complete Image Performance For Labview Version 4

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Initial Setup - Complete Image Performance for LabVIEW Version 4 1. Insure scanner SCSI ID is set to 6 and properly terminated on the SCSI bus. 2. Turn on the Slide Scanner. 3. Turn on the host computer 4.
  • Page 122 Slide Scanner Repair Manual Diagnostics and Troubleshooting 7. Select Scanner Tester (w) to perform all IPT tests or, select one of the following stand-alone tests that are listed above and below the Scanner Tester (w) choice: • Uniformity II.subVI - Tests Dark and Light Non Uniformity •...

  • Page 123: Entering Test Parameters

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Entering Test Parameters From the Scanner Tester Panel: (Figure 5-8). Figure 5-8. Scanner test panel 1. Click the mouse in the Scanner SN box and enter the slide scanner’s serial number (identification). 2. Click the mouse on the Station Name box and then enter the computers’ name or, a work station name.

  • Page 124: Entering Optional Test Parameters

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Entering Optional Test Parameters 1. Click the mouse on the Show Image pushbutton. 2. If selected, windows appear showing the test scan images and graphs as the tester goes through its sequence. Starting Test 1.

  • Page 125: Auto Reference Finding Origin For Gmt And Ct Targets

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Auto Reference Finding Origin for GMT and CT Targets All the image quality tests send specific 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 corner of the surrounding black frame.
  • Page 126 Slide Scanner Repair Manual Diagnostics and Troubleshooting Loading Geometric Test (GMT) Target Loading Color Test (CT) Target Figure 5-9. Loading applicable test target...

  • Page 127: Error Reporting

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Error Reporting The scanner error message dialog automatically interprets any hardware error codes as appropriate to the slide scanner type under test. For additional diagnostic information on the error codes, refer to Error Messages in this Section of the Repair Manual. Test Results Test results are displayed in the Measurements box on the Scanner Tester (w) panel.

  • Page 128: Pausing Or Stopping Scanner Test

    The test results are stored in a spreadsheet file, with a single row given to each run of the test. The format of the data is similar to the output of the original tester. The tester automatically creates a folder named Polaroid Test Results and files data in two categories: results_ss35 for the SprintScan 35 or ES...

  • Page 129: Ipt Scanner Tests - Understanding Test Results

    Slide Scanner Repair Manual Diagnostics and Troubleshooting IPT Scanner Tests - Understanding Test Results Initialization Test The LabVIEW test cycle begins by checking scanner configuration and circuit operation. This portion of the test is done before the Distortion and Magnification tests. Failure of any of the initialization tests results in an abort of the test in progress and repairs must be made before continuing with the image performance tests.

  • Page 130: Left, Center, Right Resolution Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting horizontal size differs by more than 1% an error is reported. Table 5-8 interprets the results of the Distortion and Mag Test. Table 5-8. Interpreting Measurements Provided by the Distortion & Mag Test Test Name Specification Suggested Repair...

  • Page 131: Motion And Color Registration Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Motion and Color Registration Test Motion/Color registration is a single test which checks for color fringes on the edges of the chevron section of the GMT target. Test results highlight opto-mechanical misalignments and irregularities in the carriage’s transport motion.

  • Page 132: Motion Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting ball-slide, but the operator should be warned that doing so will add an equal tilt to the carriage, and may make the problem worse. Notes: • A tilt of the carriage on the ball slide does not affect static horizontal color registration.

  • Page 133: Interpreting Measurements Of The Color Registration & Motion Tests

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Interpreting Measurements of the Color Registration & Motion Tests Introduction If a slide scanner fails the Motion and or Resolution portion of the complete IPT test, it is suggested that you run the stand alone version of the Motion Test. Table 5-10 interprets the measurements of the Color Registration and Motion Tests.

  • Page 134: Test Report

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Test Report The Test Report is a window with a scrolling menu that by default shows the Resolution Test results. These results will be useful as a double-check that resolution tests “pass” after mag and focus adjustments are made to solve color registration problems.
  • Page 135 Slide Scanner Repair Manual Diagnostics and Troubleshooting Figure 5-12. Chevron test pattern 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 panel this misalignment is also called Mean offset.
  • Page 136 Slide Scanner Repair Manual Diagnostics and Troubleshooting Mean Vertical Misalignment - The derived vertical component of misalignment caused by misadjustment of aspect ratio. In our example this is -0.04 pixels which is within the spec of 0.64 pixels. The test result is the vertical offset caused by the fixed lead screw pitch.

  • Page 137: Left And Right Misalignment Windows

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Left and Right Color Misalignment Windows The graphical representation of color misalignment is shown on right side of the test panel. This shows the misregistration data from the top to bottom left and right sides of the chevron pattern that’s part of the GMT target used in this test.

  • Page 138: Motion Problem Examples

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Motion Problem Examples Example 1 - Figure 5-13 shows an example with a problem leadscrew. Two things stand out in this example. One is the large peak swing graphically illustrated at approximately line #1200. This large swing indicates a point defect with the leadscrew or the guide rail.
  • Page 139 Slide Scanner Repair Manual Diagnostics and Troubleshooting Example 2 - Figure 5-14 shows an example of a scanner needing both mag and tilt adjustments. The peak misalignment of 1.93 pixels is out of spec by almost a full pixel. Looking at the graphs you see fairly well balanced sinusoids but, the right side is shifted up from the ideal of 0.0 to 1.29.
  • Page 140 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-10. Interpreting Measurements of the Color Registration & Motion Tests Test Name Specification Suggested Repair SS35 ES & Plus Mean R->B Less than 0.64 pixels Refer to Motion Analysis and Results in Vert Offset the previous paragraphs.

  • Page 141: Uniformity Ii Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Uniformity II Test This test provides statistical information about the uncorrected dark and light non-conformity of the slide scanner. Table 5-11 interprets the measurements of the Uniformity II Tests. Note: A stand-alone version of this test can be run to provide graphical feedback of actual profiles of the lamp output and the location of the defects and additional information.

  • Page 142: Part 3

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Part 3 This portion of the test provides a 5-point measurement which is taken at equally spaced points, left to right across the CCD. The results of this test lists a 5-point profile of the uncorrected uniformity data for each channel of the CCD.
  • Page 143 Slide Scanner Repair Manual Diagnostics and Troubleshooting Table 5-12. Interpreting Measurements of the Uniformity Tests (Cont’d) Test Name Specification Specification Suggested Repair SS35ES SS 35 Plus Green Light Min = 64% Min = 64% • Replace lamp. Uniformity • Obstruction in optic path such as dust, dirt or hair in the light tunnel.

  • Page 144: Dark Noise Ii Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Dark Noise II Test Note: A stand-alone version of this test can be run to provide graphical feedback and additional information. This test provides statistical and Fourier noise performance of dark response. The test analyzes the slide scanner’s performance for noise and streaks in the dark.

  • Page 145: Negative Calibration

    Error Codes. Test Result Folder/Directory Test results are automatically stored in a spreadsheet format file folder named Polaroid Test Results. A single row in the spreadsheet is given to each run of a test. The data is compatible with MS Excel.

  • Page 146: Ccd Configuration

    Slide Scanner Repair Manual Diagnostics and Troubleshooting CCD Configuration At present, this feature is not being used. When this feature is implemented, a bulletin will be generated detailing its options and use. Determining CCD Configuration Using Scanner Tester 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.

  • Page 147: Ipt Scanner Test Descriptions

    Slide Scanner Repair Manual Diagnostics and Troubleshooting IPT Scanner Tests Descriptions Motion and Color Registration Test Motion/Color registration is a single test using color fringes on the edges of the chevron section of the GMT target. Test results highlight opto-mechanical misalignments and irregularities in the carriage’s transport motion.

  • Page 148: Dynamic (Motion Effects)

    Slide Scanner Repair Manual Diagnostics and Troubleshooting of the CCD as well. Very small tilt adjustments can sometimes be made by loosening the mounting screws and rotating the fixed rail of the ball-slide, but the operator should be warned that doing so will add an equal tilt to the carriage, and may exacerbate dynamic affects.

  • Page 149: Dark Noise Ii Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Dark Noise II Test The dark noise test analyses the statistical and fourier noise patterns in a scanned image of the dark calibration target in the scanner. The dark calibration target is the back of the scanner’s carriage.

  • Page 150: Dark Uniformity Response (Noise)

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Part two of this test checks for the min or max variation from the dark set point. Any single pixel which deviates a large amount from the calibrated dark is expected to produce a streak.

  • Page 151: Dark Uniformity Response (Fourier)

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Dark Uniformity Response (Fourier) Part three of the test checks for fixed frequency sources of noise in the dark response. Fixed frequency sources tend to create highly objectionable artifacts such as streaks and diagonal lines.

  • Page 152: Control Panel

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Control Panel Figure 5-18 shows the control panel of the Noise IIw power subVi, which may be run as a stand-alone test. When run as a stand-alone test, the program will ask for the location of the test constants file, so that the same limits can be used in the stand-alone as in the standard test.

  • Page 153: Uncorrected Light Uniformity Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting non-uniformity for each of the three RGB sensors. These profiles are tested to find potential borderline calibration problems which might cause problems in the field once the lamp ages slightly or is replaced. Pixels flagged as “bad pixels” in the normal calibration are ignored in the uniformity analysis.

  • Page 154: Illumination

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Part one of the Uniformity test checks for dust or dirt on the CCD. Dust is identified as deviations from a polynomial curve fit to the illumination profile that exceed the Fine_uniformity_tolerance set in the constants file (initially at 9%). Failure of this test will occur for a single violation of the threshold, and will generally require removal and cleaning of the CCD sensor.

  • Page 155: Uncorrected Dark Uniformity Test

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Uncorrected Dark Uniformity Test The dark portion of the test is based on the offset uniformity profile of the slide scanner. The dark performance of the CCD is tightly specified and tested due to the limited correction range of the SprintScan 35ES.

  • Page 156: Uniformity Ii Stand-Alone Test Control Panel

    Slide Scanner Repair Manual Diagnostics and Troubleshooting Uniformity II Stand-Alone Test Control Panel Figure 5-21 shows the test panel of the subVi, which may be run as an independent test. When run as an independent test, the program asks for the location of the test constants file, so that the same limits can be used in the stand-alone as in the complete test.

  • Page 157: System Diagrams

    Slide Scanner Repair Manual System Diagrams 6. System Diagrams...

  • Page 158: Power Supply Specification (Sheets 1 - 4)

    Slide Scanner Repair Manual System Diagrams 6. System Diagrams Contents Power Supply Specification (Sheets 1 - 4) ..........AC Inverter PC Board Schematic ............Image Sensor (CCD) PC Board Schematics (Sheets 1 - 3) ....SS35/SS35 ES Main Controller PC Board Schematics (Sheets 1 - 8) .. SS35 PLUS Main Controller PC Board Schematics (Sheets 1 - 9) ..
  • Page 159 Slide Scanner Repair Manual System Diagrams Power Supply Specification (Sheet 1 of 4)
  • Page 160 Slide Scanner Repair Manual System Diagrams Power Supply Specification (Sheet 2 of 4)
  • Page 161 Slide Scanner Repair Manual System Diagrams Power Supply Specification (Sheet 3 of 4)
  • Page 162 Slide Scanner Repair Manual System Diagrams Power Supply Specification (Sheet 4 of 4)

  • Page 163: Ac Inverter Pc Board

    Slide Scanner Repair Manual System Diagrams AC Inverter PC Board...
  • Page 164 Slide Scanner Repair Manual System Diagrams Image Sensor (CCD) PC Board (Sheet 1 of 3)
  • Page 165 Slide Scanner Repair Manual System Diagrams Image Sensor (CCD) PC Board (Sheet 2 of 3)
  • Page 166 Slide Scanner Repair Manual System Diagrams Image Sensor (CCD) PC Board (Sheet 3 of 3)
  • Page 167 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 1 of 8)
  • Page 168 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 2 of 8)
  • Page 169 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 3 of 8)
  • Page 170 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 4 of 8)
  • Page 171 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 5 of 8)
  • Page 172 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 6 of 8)
  • Page 173 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 7 of 8)
  • Page 174 Slide Scanner Repair Manual System Diagrams SS35/SS35 ES Main Controller PC Board (Sheet 8 of 8)
  • Page 175 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 1 of 9)
  • Page 176 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 2 of 9)
  • Page 177 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 3 of 9)
  • Page 178 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 4 of 9)
  • Page 179 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 5 of 9)
  • Page 180 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 6 of 9)
  • Page 181 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 7 of 9)
  • Page 182 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 8 of 9)
  • Page 183 Slide Scanner Repair Manual System Diagrams SS35 PLUS Main Controller PC Board (Sheet 9 of 9)

  • Page 184: Appendix

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

  • Page 186: Ss35 & 35 Es Firmware/Hardware Update History

    Slide Scanner Repair Manual Appendix SS35 & 35ES Firmware/Hardware Update History Firmware Change Description Effect of Change Suffix Version None None First generation firmware. None Improves uniformity correction. Reduced high frequency noise in scanned image. None • Improves uniformity correction. •...
  • Page 187 Slide Scanner Repair Manual Appendix SS35 & 35ES Firmware/Hardware Update History (Cont’d) Firmware Change Description Effect of Change Suffix Version Added power supply metal Shields system electronics against shield. power supply and inverter induced analog noise. Eliminates streaks in scans that was caused by the noise. 1.00 Began use of mask Added hardware diagnostics.

This manual is also suitable for:

Sprintscan ss35 esSprintscan ss35 plus

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