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Polaroid Digital Microscope Camera User manual

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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
2
DMC Repair Manual Table of Contents
Table of Contents
1. Camera Overview .................................................................................................. 5
Overview ................................................................................................................ 7
Features ................................................................................................................. 8
Specifications ........................................................................................................ 11
2. Parts Replacement ................................................................................................ 13
Required Tools and Equipment............................................................................ 16
Cautions................................................................................................................. 17
Electrostatic Discharge Warning........................................................................... 17
Inspection and Cleaning........................................................................................ 17
Connectors ........................................................................................................... 17
Screw Replacement (Front and Rear Panels) ...................................................... 17
Disassembly/Assembly of Camera ....................................................................... 18
Bottom Extrusion ..................................................................................................... 18
Removal ................................................................................................................ 18
Installation ............................................................................................................ 19
Rear Panel and XSYNC Assembly .......................................................................... 20
Removal................................................................................................................ 20
Installation ............................................................................................................ 20
Front Panel and Optics Assembly ........................................................................... 21
Removal................................................................................................................ 21
Installation ............................................................................................................ 22
CCD Imager ............................................................................................................ 23
Removal................................................................................................................ 23
Installation ............................................................................................................ 24
Optics Assembly ..................................................................................................... 25
Removal................................................................................................................ 25
Installation ............................................................................................................ 26
Anti-Alias Optical Filter Assembly............................................................................ 27
Removal................................................................................................................ 27
Installation ............................................................................................................ 28
3
DMC Repair Manual Table of Contents
Shutter Assembly .................................................................................................... 30
Removal ................................................................................................................ 30
Installation ............................................................................................................ 31
Electronics Assembly (Front End /Back End Boards).............................................. 32
Removal................................................................................................................ 32
Installation ............................................................................................................ 33
Vanity Panel ............................................................................................................ 34
Removal ................................................................................................................ 34
Installation ............................................................................................................ 34
XSYNC Connector ................................................................................................... 35
Removal ................................................................................................................ 35
Installation ............................................................................................................ 36
3. Testing and Adjustments...................................................................................... 37
LabView.................................................................................................................. 40
Overview .............................................................................................................. 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
Testing and Adjustments...................................................................................... 44
Pretest.................................................................................................................. 44
Required Test Equipment and Tools .................................................................. 44
Equipment Setup................................................................................................ 44
Test Procedure .................................................................................................. 47
Calibration ............................................................................................................ 52
Required Test Equipment and Tools .................................................................. 52
Equipment Setup................................................................................................ 53
Test Procedure .................................................................................................. 57
Image performance .............................................................................................. 61
Required Test Equipment and Tools .................................................................. 61
Equipment Setup................................................................................................ 61
Test Procedure .................................................................................................. 62
4
DMC Repair Manual Table of Contents
Dust Test.............................................................................................................. 65
Required Test Equipment and Tools .................................................................. 65
Equipment Setup................................................................................................ 65
Test Procedure .................................................................................................. 66
Cleaning Anti-Alias Optical filter and CCD Window............................................... 69
Required Test Equipment and Tools .................................................................. 69
Equipment Setup................................................................................................ 69
Test Procedure .................................................................................................. 70
Changing Camera Serial Number .......................................................................... 72
Required Test Equipment and Tools .................................................................. 72
Equipment Setup................................................................................................ 72
Test Procedure .................................................................................................. 73
List of Illustrations
Figure Page
1-1 Digital micrscope camera................................................................................... 7
2-1 Typical flex circuit............................................................................................... 17
2-2 Removing bottom extrusion ................................................................................ 18
2-3 Removing rear panel XSYNC assembly ............................................................. 20
2-4 Removing front panel and optic assembly .......................................................... 21
2-5 Removing CCD imager....................................................................................... 23
2-6 Removing optics assembly ................................................................................. 26
2-7 Removing anti-alias optical filter ......................................................................... 27
2-8 Removing shutter assembly ............................................................................... 30
2-9 Removing electronic assembly (back/front end boards)..................................... 32
2-10 Replacing vanity panel........................................................................................ 34
2-11 Replacing XSYNC assembly .............................................................................. 35
3-1 Pretest equipment test setup ............................................................................. 46
3-2 Calibration test equipment setup ........................................................................ 54
3-3 Calibration test equipment setup (color and focus) ............................................ 54
3-4 Calibration test equipment setup (neutral density filter)...................................... 55
3-5 Image performance test equipment setup.......................................................... 62
3-6 Dust test equipment setup ................................................................................. 66
3-7 Cleaning test equipment setup ........................................................................... 70
3-8 Changing serial number test equipment setup .................................................... 73
List of Tables
Table Page
1-1 Camera features..........................................................................................
1. Camera Overview
6
DMC Repair Manual Camera Overview
1. Camera Overview
Contents
Overview............................................................................................................. 7
Features.............................................................................................................. 8
Specifications..................................................................................................... 11
7
DMC Repair Manual Camera Overview
Overview
This section of the Repair Manual gives an overview of the Digital Microscope Camera (DMC).
It only provides the necessary information pertaining to features and specifications for the
camera.
Note: For detailed information pertaining to setting up the camera, installing and starting its
software, assigning SCSI ID's and checking SCSI connections, and using application
software, refer to the DMC User Guide.
This camera (Figure 1-1) is used to capture high-quality digital color images from light
microscopes and other optical instruments. It uses a unique, million-pixel, 12.5mm CCD
(charge coupled device) to capture pictures with up to 16.7 million colors. The camera
transfers these pictures in seconds 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 Microsoft Windows or PowerMac/PowerPC software provided with the camera, you
can display a viewfinder image on a computer screen, choose resolution and other options,
enhance color balance, brightness, contrast and sharpness, then transfer the picture to an
image-processing application or a disk drive.
The camera has a SCSI-2 connection requiring no frame-grabber or other special hardware or
software. It also includes a SCSI-2 adapter board for adding a SCSI port to a computer.
Using a standard .63, 1:1, or larger C-mount adapter, the camera attaches easily to
microscopes for most types of transmitted-light and reflected-light microscopy.
The camera also features a tripod mount and Xsync connection for use with standard C-mount
lenses on a copystand.
8
DMC Repair Manual Camera Overview
Features
Table 1-1 list and describes the features of the camera.
Table 1-1. Camera Features
Feature Description
Power Switch Turns the camera on and off.
Strobe X-sync Connector Connector for electronic flash, if used with the camera.
Termination Selector Turns camera SCSI termination on or off.
SCSI Connector One (1) 25-pin standard SCSI connector. Connects to
the host computer 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/PowerPC hard drives.
If possible, avoid SCSI ID 3, which is often
used for internal CD-ROM drives.
Power Connector Connection for the AC power adapter.
WARNING
Always connect the camera to AC power when it is
connected to the computer. If the camera or any other
SCSI device turns off while connected, it could corrupt
data on your hard disk.
Power Indicator LED Lights green to indicate that the camera is powered on.
9
DMC Repair Manual Camera Overview
Table 1-1. CameraFeatures (Con't)
Feature Description
Not Shown in Figure 1-2:
Power Adapter Provides surge-protected 5.8 Vdc, 3-amp power for the
camera from 110-240 Vac power outlets.
SCSI Cable (2 meter) Connects the camera to a PowerMac/PowerPC
and DB25/50 Pin computer or the PC SCSI-2 adapter.
Centronics Adapter
SCSI Host Adapter Adapter board for adding a SCSI port to a computer for
communicating with the 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
Windows 95, Windows NT, and PowerMac/ PowerPC
systems.
DMC TWAIN Driver :
Using the TWAIN driver requires an image-processing
application (not provided) compatible with the TWAIN
specification.
DMC Direct Software:
If you do not have an image-processing application
compatible with TWAIN, DMC Direct software can be
used to transfer pictures from the camera to the host
computer.
Tripod Mount Standard mount for attaching the camera to a
copystand or tripod.
10
DMC Repair Manual Camera Overview
Table 1-1. CameraFeatures (Con't)
Feature Description
C-mount Accepts standard C-mount adapter for attachment to
microscopes, other optical instruments and C-mount
lenses.
Note: Attaching the camera to amicroscope requires .
a 63 or 1:1 C-mount adapter (not provided)
compatible with your microscope.
Do not use a .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-mounts.
Caution
Before attaching a C-mount adapter or lens to
the camera, verify that the threaded end of the
adapter does not exceed 0.195 inches (5mm).
Longer C-mount adapters may damage the
camera.
Figure 1-2. Camera features
Strobe X-sync
Connector
Power Switch
Termination Selector
SCSI Connector
Power Connector
Power Indicator LED
SCSI Selector
11
DMC Repair Manual Camera Overview
Specifications
Camera Type: - Microscope-mounted, computer-controlled
digital camera
Physical Dimensions:
Height - 7.8 inches (19.8cm)
Length - 4.6 inches (11.7cm)
Width - 2.2 inches (5.6cm)Height
Weight - 2.6 pounds (1.2 kg)
External Power Adapter: - IEC universal power adapter, Class II, double-
insulated UL, SA, CE, DVE approved
Input (Operating) Voltage - 100 - 240 VAC, 0.38A @ 50 - 60 Hz (Surge
Protected)
Output Voltage - +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 to 5 frames/second
Sensor Resolution and Size: - Polaroid one million pixel, 12.15 CCD
Output Formats:
Super High Resolution - 1600 x 1200 pixels, 24-bit color
16.7 million colors, 5.6 MB file
High Resolution - 800 x 600 pixels, 24-bit color
16.7 million colors, 1.4 MB file
Black and White Resolution - 1600 x 1200 pixels, 8-bit gray scale
256 gray scale levels, 450KB file
Image Transfer Speed: - SCSI data transfer at 2 MB/Sec or greater
12
DMC Repair Manual Camera Overview
Computer Interface: - SCSI-2
Equivalent Film Speed: - ISO rating 25, 50, 100
Shutter Speed: - Selectable, 1/500 to 1 second
Shutter: - Scanning aperture, microprocessor-controlled
Host Computer Platforms: Macintosh IBM PC or Equivalent
Operating Systems
- System 7.5 or higher MS Windows 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)
Hard Drive - 10 MB available 10 MB available
SCSI - N/A ASPI compliant SCSI
adapter card
Digitized Image
- Tiff Tiff
Formats
Software: (Included with Camera)
- Polaroid Direct Photo Polaroid Direct Photo
Image Capture Image Capture
- Camera Utility Camera Utility
- PhotoShop Compliant Twain Compliant
Plug-in Plug-in
2. Parts Replacement
14
DMC Repair Manual Parts Replacement
2. Parts Replacement
Contents
Required Tools and Equipment ........................................................................ 16
Cautions ............................................................................................................. 17
Electrostatic Discharge Warning .................................................................... 17
Inspection and Cleaning.................................................................................. 17
Connectors ..................................................................................................... 17
Screw Replacement (Front and Rear Panels) ................................................ 17
Disassembly/Assembly of Camera ................................................................... 18
Bottom Extrusion ............................................................................................ 18
Removal ....................................................................................................... 18
Installation ................................................................................................... 19
Rear Panel and XSYNC Assembly ................................................................. 20
Removal....................................................................................................... 20
Installation ................................................................................................... 20
Front Panel and Optics Assembly .................................................................. 21
Removal....................................................................................................... 21
Installation ................................................................................................... 22
CCD Imager ................................................................................................... 23
Removal....................................................................................................... 23
Installation ................................................................................................... 24
Optics Assembly ............................................................................................ 25
Removal....................................................................................................... 25
Installation ................................................................................................... 26
Anti-Alias Optical Filter Assembly................................................................... 27
Removal....................................................................................................... 27
Installation ................................................................................................... 28
Shutter Assembly ........................................................................................... 30
Removal ....................................................................................................... 30
Installation ................................................................................................... 31
15
DMC Repair Manual Parts Replacement
Electronics Assembly (Front End /Back End Boards)..................................... 32
Removal....................................................................................................... 32
Installation ................................................................................................... 33
Vanity Panel ................................................................................................... 34
Removal ....................................................................................................... 34
Installation ................................................................................................... 34
XSYNC Connector .......................................................................................... 35
Removal ....................................................................................................... 35
Installation ................................................................................................... 36
16
DMC Repair Manual Parts Replacement
Required Tools and Equipment
• Anti-static mat
• ESD wrist strap
• Lens cleaning tissue
• Dust and static free wiping cloth (Texwipe type TX309)
• RTV Sealant (Dow Corning 3140)
• Cotton gloves or finger cots
• Standard tool kit
• Front panel fixture
• Optical mount fixture
• Spanner nut tool
• XSYNC nut driver
• Tweezers
17
DMC Repair Manual Parts Replacement
Cautions
Electrostatic - Digital Microscope Camera circuitry can easily be damaged by small
Discharge static discharges. Always use an anti-static mat and an ESD wrist-
Warning strap when disassembling, assembling or repairing the camera with
the bottom extrusion removed.
Inspection and - Whenever disassembling a Digital Microscope Camera for parts
Cleaning replacement, inspect it for dust and debris. If necessary, clean the
camera to assure that dust in the optical 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 back the two (2) locking tabs and pull the flex cable free
of the connector. To install a flex cable, align it in the connector and
make sure it is fi\ully seated befor pushing in the two (2) locking tabs.
Figure 2-1. Typical flex connector
Screw - Do not reuse the front and rear panel screws. Always use new
Replacement screws (PH PA 4-40 x .75) when reinstalling the front and rear
(Front /Rear panels. These screws are coated to prevent them from backing
Panels) out.
Locking Tab
Locking Tab
Flex Cable
Connector
18
DMC Repair Manual Parts Replacement
Disassembly/Assembly of Camera
This section of the Repair Manual describes the Digital Microscope Camera's disassembly and
assembly procedures. Before performing any of the procedures described in this section, make
sure that the camera has been turned off and that its power pack has been unplugged.
Note: Care 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 (2) screws securing the bottom extrusion to the front panel.
Note: Bottom extrusion has the tripod mount screw hole.
2. Remove the two (2) screws securing the bottom extrusion to the rear panel.
3. Lift off the bottom extrusion from the camera assembly.
Figure 2-2. Removing bottom extrusion
Bottom Extrusion
Tripod Mount
Screw Hole
Rear Panel
Front Panel
19
DMC Repair Manual Parts Replacement
Installation
1. Position the bottom extrusion 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 tighten the two (2) screws that secures the bottom extrusion to the front panel.
20
DMC Repair Manual Parts Replacement
Rear Panel and XSYNC Assembly (Figure 2-3)
Removal
1. Remove the bottom extrusion.
2. Remove the two (2) screws that secures SCSI connector J5 to the rear panel.
3. Remove the two (2) screws securing the rear panel to the top extrusion.
4. Gently pull off the rear panel from the top extrusion being careful not to break the XSYNC
soldered cable leads from the XSYNC assembly.
5. Disconnect the 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 the rear panel onto the top extrusion being careful not to pinch or grimp the
XSYNC cable leads between the top extrusion and the rear panel.
3. Install and tighten the two (2) screws that secures the rear panel to the top extrusion.
4. Install and tighten the two (2) screws that secures SCSI connector J5 to the rear panel.
5. Install the bottom extrusion.
SCSI Connector
(J4)
Top Extrusion
Rear Panel
XSYNC Assembly
XSYNC Cable
/