Polaroid Digital Microscope Camera Repair Manual Download Page 46

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DMC Repair Manual

Testing & Adjustment

Figure 3-1. Pretest equipment test setup

External Power

Supply (6 Vdc)

DMC

Camera

Test Fixture

(Nest)

1-Ohm

Resistor Box

Ribbon Cable - not shown

(Out to computer)

6 Vdc - Out to PC

Grn

Manual/LV (LabView)

Switch

6Vdc - In

(From external power supply)

1-Ohm

Resistor Box

Grn

Equipment

Setup

MacBeth Color

Checker Chart

Pretest Fixture

Power Supply

Power Computing

Power PC

Resolution

Chart

DMC Pretest

Target Fixture

Foil

LED (Red)

Camera

SCSI Cable

Summary of Contents for Digital Microscope Camera

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 Digital Microscope Camera September 1997...

Page 2: ...onandCleaning 17 Connectors 17 Screw Replacement Front and Rear Panels 17 Disassembly AssemblyofCamera 18 BottomExtrusion 18 Removal 18 Installation 19 Rear Panel and XSYNC Assembly 20 Removal 20 Inst...

Page 3: ...iew 40 Front Panel 40 Block Diagram 40 Icon Connector 41 Test Software 41 Tester Operation 41 Starting the Tester 41 Stopping the Tester 42 Quitting the Tester 42 Testing and Adjustment Guidelines 43...

Page 4: ...bly 20 2 4 Removing front panel and optic assembly 21 2 5 RemovingCCDimager 23 2 6 Removing optics assembly 26 2 7 Removing anti alias optical filter 27 2 8 Removingshutterassembly 30 2 9 Removing ele...

Page 5: ...1 Camera Overview...

Page 6: ...6 DMC Repair Manual Camera Overview 1 Camera Overview Contents Overview 7 Features 8 Specifications 11...

Page 7: ...to an IBM PC PowerMac or PowerPC compatible computer as high resolution 800 x 600 pixels or super high resolution 1600 x 1200 pixels TIFF images Figure 1 1 Digital microscope camera Using the Microsof...

Page 8: ...ter SCSI port via the provided SCSI cable SCSI Selector Sets the SCSI address of the camera Preset at 4 Note Do not use 7 or 0 which are customarily reserved for the host computer and for PowerMac Pow...

Page 9: ...camera and other SCSI devices Software Diskettes TWAIN driver for Windows 95 and Windows NT only Plug in software for PowerMac PowerPC systems and Polaroid DMC Direct camera utility software for Wind...

Page 10: ...5 C mount adapter because it will produce image vignetting dark corners Refer to the applicable microscope s instruction manual or contact the microscope manufacturer for more information about C moun...

Page 11: ...age 5 8 VDC 3 0A Operating Environment Operating Temperature 32 F 0 C to 120 F 48 C Optimum 60 F 16 C to 80 F 27 C Operating Relative Humidity 5 to 90 No condensation Preview Mode Black and white up t...

Page 12: ...ows 95 or NT Hardware Requirements Mac or Powerbook 486 or later processor witha Power PC or Pentium recommended later processor RAM 8 MB available 8 MB available 16 MB recommended 16 MB recommended H...

Page 13: ...2 Parts Replacement...

Page 14: ...Rear Panels 17 Disassembly AssemblyofCamera 18 BottomExtrusion 18 Removal 18 Installation 19 Rear Panel and XSYNC Assembly 20 Removal 20 Installation 20 Front Panel and Optics Assembly 21 Removal 21...

Page 15: ...5 DMC Repair Manual Parts Replacement Electronics Assembly Front End Back End Boards 32 Removal 32 Installation 33 VanityPanel 34 Removal 34 Installation 34 XSYNCConnector 35 Removal 35 Installation 3...

Page 16: ...ent Anti static mat ESD wrist strap Lenscleaningtissue Dust and static free wiping cloth Texwipe type TX309 RTV Sealant Dow Corning 3140 Cotton gloves or finger cots Standard tool kit Front panel fixt...

Page 17: ...path does not degrade its performance Connectors The connectors in the Digital Microscope Camera have locking tabs Figure 2 1 which secures the flex cable in place To remove a flex cable first pull b...

Page 18: ...should be taken throughout all disassembly and reassembly procedures never to smudge or soil the camera s anti alias optical filter or CCD imager Bottom Extrusion Figure 2 2 Removal 1 Remove the two...

Page 19: ...rusion onto the camera assembly making sure its tripod mount screw hole faces the front panel 2 Install and tighten the two 2 screws that secures the bottom extrusion to the rear panel 3 Install and t...

Page 20: ...e XSYNC cable leads from connector J4 on the back end board Figure 2 3 Removing rear panel and XSYNC assembly Installation 1 Reconnect the XSYNC cable to connector J4 on the back end board 2 Position...

Page 21: ...op extrusion Note Be careful not to break or damage the shutter or CCD imager flex scratch the front panel scratch or dirty the anti alias optical filter 4 Usingtweezersorasmalljewelers flatscrewdrive...

Page 22: ...er flex and connector J5 to secure the CCD imager flex 3 Position the front panel onto the top extrusion being careful not to pinch or grimp the shutter or CCD imager flex between the top extrusion an...

Page 23: ...front panel supports 5 Remove the CCD retainer and the backing pad 6 Gently lift off the CCD imager from the optical mount being careful not to scratch the CCD imager 7 Using tweezers or a small jewe...

Page 24: ...ager PC board making sure that the small and large tabs are properly positioned 5 Place the CCD retainer over the CCD imager and backing pad assembly making sure that the CCD imager is properly positi...

Page 25: ...ic mat 4 Remove the three 3 screws securing the optics assembly to its front panel supports 5 Remove the CCD retainer and the backing pad 6 Lift off the CCD imager from the optical mount being careful...

Page 26: ...pad over the CCD imager PC board making sure that the small and large tabs are properly positioned 4 Place the CCD retainer over the CCD imager and backing pad assembly 5 Install and tighten the three...

Page 27: ...CCD retainer and the backing pad 6 Lift off the CCD imager from the optical mount being careful not to scratch the CCD imager 7 Remove the optical mount and shutter asssembly from the front panel and...

Page 28: ...Note Make sure that the optical mount is inserted into the optical mount fixture with the threadsidefacingupandthemotorontheshutterfacingdown 2 Placetheanti aliasopticalassemblyintotheopticalmountmak...

Page 29: ...ver the CCD imager and backing pad assembly 10 Install and tighten the three 3 screws that secures the optics assembly to its front panel supports 11 Install the front panel and optics assembly onto t...

Page 30: ...ove the optical mount from the front panel and place it into the optical mount fixture 7 Removetheanti aliasopticalfilterassemblybeingcarefulnottoscratchordirtyit 8 Rotate the optical mount on the opt...

Page 31: ...ssemblytotheopticalmount 4 Rotatetheopticalmountontheopticalmountfixturetoaccessthefrontoftheopticalmount 5 Install the anti alias optical filter assembly 6 Hold the spanner nut securely while securin...

Page 32: ...star washers that secures the electronics assembly to the top extrusion supports 4 Slide out the electronics assembly from the top extrusion 5 Remove the rear panel and XSYNC assembly 6 Disconnect the...

Page 33: ...he notch on the base of the top extrusion Back end board slides into the channel of the the top extrusion Front end board rests above the supports of the top extrusion 3 Connect the XSYNC connector to...

Page 34: ...anel from the channel in the top extrusion Figure 2 10 Replacing vanity panel Installation 1 Slide the replacement vanity panel into the channel in the top extrusion 2 Install and tighten the four 4 s...

Page 35: ...mbly connector XSYNC cable and screw Nylonshoulderwasher 3 Usingthe XSYNCnutdriver removethenutandlugcableasssembly thatsecurestheXSYNC assemblytotherearpanel Note Nutandlugassemblyconsistsof nut Inne...

Page 36: ...ly 4 Assemble the XSYNC cable assembly and the XSYNC lug cable assembly to the rear panel asfollows Place the XSYNC cable assembly and white nylon washer into its recessed support hole at the front of...

Page 37: ...3 Testing and Adjustment...

Page 38: ...ting the Tester 42 Testing and Adjustment Guidelines 43 Testing and Adjustments 44 Pretest 44 Required Test Equipment and Tools 44 EquipmentSetup 44 Test Procedure 47 Calibration 52 Required Test Equi...

Page 39: ...tment Cleaning Anti Alias Optical filter and CCD Window 69 Required Test Equipment and Tools 69 EquipmentSetup 69 Test Procedure 70 ChangingCameraSerialNumber 72 Required Test Equipment and Tools 72 E...

Page 40: ...ce It serves as an interactive interface for supplying inputs to and observing outputs from the instrumentation system LabView makes creating a front panel as simple as drawing a picture and gives the...

Page 41: ...era tests At the completion of the specified test a report file is generated by the Tester indicating whether or not the tested functions passed Pass or failed Fail It also list the current parameters...

Page 42: ...the mouse on the stop box to completely stop the DMC s test sequence The black arrow changes to a white arrow indicating that the run time version of LabView stopped running 2 To restart the Tester j...

Page 43: ...and dialog boxes appear and disappear throughout the test process Use the following test guidelines to perform the requested user tasks Yes No Click on appropriate response Yes or No DialogBoxes Messa...

Page 44: ...nt Setup Figure 3 1 1 Attach the Navitar CCTV 12 5mm C mount lens onto the camera lens 2 Set the lens to f stop 8 at 4 feet 3 Place the camera onto the test fixture camera nest 4 Connect the SCSI cabl...

Page 45: ...as follows Power Computing Power PC On Off 0 1 switch to On 1 0 10 Vdc external power supply On Off switch to On Adjust power supply output to 6 Vdc Set the 1 ohm resistor box Manual LV switch to LV L...

Page 46: ...t 1 Ohm Resistor Box Ribbon Cable not shown Out to computer 6 Vdc Out to PC Grn Manual LV LabView Switch 6Vdc In From external power supply 1 Ohm Resistor Box Grn Equipment Setup MacBeth Color Checker...

Page 47: ...D icon The HD windows appears 3 Double click on the DMC folder The DMC window appears 4 Double click on the Pretest folder The Pretest window appears 5 Double click on the Pretest VI icon This action...

Page 48: ...ck on the Power button The Power Test screen appears prompting you to turn on the DMC camera Click on the OK button The Pretest VI panel reappears SCSI Communications Test Click on the SCSI Communicat...

Page 49: ...he Set Defaults screen appears Click on the Defaults button The action sets the EEPROM test defaults Snap Test Click on the Snap test button A window appears on the Pretest VI panel indicating that th...

Page 50: ...approximately 1 foot in front of the camera to check for dark spots this test also checks foil for flair bloom Once white paper is placed in front of the camera click on the OK button A white screen a...

Page 51: ...check the image for noise and horizontal streaks Click the appropriate button Yes or No SCSI ID Switch Click on the SCSI ID Switch button The SCSI ID Switch panel appears Click on the applicable SCSI...

Page 52: ...Power Supply Camera SCSI Cable Camera Test Fixture Nest Keithly 485 AutoRanging Picoammeter or Equivalent Polaroid Model B Light Source DMC Blue Box with Photodiode attached to glass Diorama Test Benc...

Page 53: ...rash 4 Connect the power adapter cable to the camera s external power connector 5 Place the camera onto the test fixture 6 Center the camera in front of the Model B light source making sure the test f...

Page 54: ...r and focus Camera Power Supply Power Computing Power PC Camera SCSI Cable Model B Light Box Camera Nest Picoammeter DMC Camera Photodiode Camera Power Supply Power Computing Power PC DMC Camera Camer...

Page 55: ...ibration test equipment setup neutral density filter Camera Power Supply Power Computing Power PC DMC Camera Camera SCSI Cable Diorama Camera Nest Diorama Bench Auxiliary Strobe Neutral Density Filter...

Page 56: ...ve HD windows appears 3 Double click on the DMC folder The DMC window appears 4 Double click on the Calibration icon The Calibration icon window appears 5 Double click on the Calibration icon This act...

Page 57: ...on the white arrow Arrow changes to black indicating that the test program is running 9 Click on the Start button to automatically start the selected LabView VI test program A message appears prompti...

Page 58: ...0 Cd Ft2 candles per foot click on the Start button This action starts the selected LabView vi calibration program 15 Upon completion of the ambient portion of the calibration test program a message a...

Page 59: ...on the Yes button The screen displays the message Is this image noisy with horizontal streaks 23 Click on the NO button The screen displays the message Is this image noisy with horizontal streaks agai...

Page 60: ...een displays the Cal Archive window indicating whether or not a particular calibration test passed Pass or failed Fail Note If any of the calibration tests failed Fail refer to the Calibration Trouble...

Page 61: ...the host computer SCSI connector to the camera SCSI connector Note When connecting or disconnecting SCSI cables always make sure that the computer is OFF If the computer is ON reading or writing to th...

Page 62: ...s follows If applicable set the SCSI ID to 4 Set the Termination Selector to Off 0 Set Power Switch to On 0 Figure 3 5 Image performance test setup Kyoritso Light Box DMC Camera Camera SCSI Cable Powe...

Page 63: ...ble click on the hard drive HD icon The HD windows appears 3 Double click on the DMC folder The DMC window appears 4 Double click on the Image Performance folder The Image Performance window appears 5...

Page 64: ...rrow should change to black This action automatically starts the selected LabView VI test program 7 Upon completion of the image performance procedure the screen displays a panel indicating whether or...

Page 65: ...SCSI connector Note When connecting or disconnecting SCSI cables always make sure that the computer is OFF If the computer is ON reading or writing to the internal hard drive while connecting or disco...

Page 66: ...ter user password 2 Double click on the hard drive HD icon The HD windows appears 3 Double click on the Dust Buster folder The Dust Buster window appears HD Icon Dolan Jenner Light Source DMC Camera C...

Page 67: ...LabView VI test program is loaded the front panel appears indicating that the selected LabView VI test program is waiting for run instructions 6 Click on the white run arrow Arrow should change to bl...

Page 68: ...eed to step 10 Should be less than 2 dust particles in the window If more than 10 dust particles appear in the window area clean the Anti alias filter and CCD window as explained in the cleaning proce...

Page 69: ...computer SCSI connector to the camera SCSI connector Note When connecting or disconnecting SCSI cables always make sure that the computer is OFF If the computer is ON reading or writing to the interna...

Page 70: ...ser password 2 Double click on the hard drive HD icon The HD windows appears 3 Double click on the collimation folder The Collimation window appears 4 Double click on the Collimation VI icon This acti...

Page 71: ...10 Should be less than 2 dust particles in the window If more than 10 dust particles appear in the window area clean the Anti alias and CCD window as explained in the cleaning procedure To save the sc...

Page 72: ...ble Universal Camera Test Fixture Nest Equipment Setup Figure 3 8 1 Connect the SCSI cable from the host computer SCSI connector to the camera SCSI connector Note When connecting or disconnecting SCSI...

Page 73: ...st Procedure 1 If applicable enter user password 2 Double click on the hard drive HD icon The HD windows appears 3 Double click on the DMC Serial folder The DMC Serial window appears HD Icon DMC Camer...

Page 74: ...Manual Serial front panel appears 7 Enter Serial Number exactly as shown on Camera label Format MMYYDD cc CCC MM Month Jan Dec 01 12 YY Year 96 97 DD Day Decimal 1 31 Daily camera count 0 255 cc Confi...

Page 75: ...ble click on the LabView Preferences box The Find local file Desktop window appears 10 Select and double click on the Hard Drive box The Find local file Hard Drive window appears 11 Select and double...

Page 76: ...e serial number to be entered Notes If the serial number to be entered is correct click on OK If the serial number to be entered is incorrect click on cancel and then repeat this procedure to enter th...

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