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ProTrack
Prober
®
Models II, III, IIc, IIIc
USER'S MANUAL
P/N 21-1280
Rev. 11, 11/2005
Copyright
1996 Huntron, Inc. All rights reserved. Huntron, Tracker and Shortrack are registered trademarks of
Huntron, Inc. ProTrack I, Workstation for Windows and Personal Troubleshooting Workstation are trademarks of
Huntron, Inc.
All other names are trademarks or registered trademarks of their respective companies.
This document may not be copied in whole or in part, or otherwise reproduced except as specifically permitted under
U.S. copyright law, without the prior written consent of Huntron, Inc.,
15720 Main Street., Suite#100, Mill Creek, WA, 98012, USA.
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Related Manuals for Huntron ProTrack Prober II
Summary of Contents for Huntron ProTrack Prober II
- Page 1 P/N 21-1280 Rev. 11, 11/2005 Copyright 1996 Huntron, Inc. All rights reserved. Huntron, Tracker and Shortrack are registered trademarks of Huntron, Inc. ProTrack I, Workstation for Windows and Personal Troubleshooting Workstation are trademarks of Huntron, Inc. All other names are trademarks or registered trademarks of their respective companies.
- Page 2 Thank you for purchasing a Huntron ProTrack Prober! Contacting Huntron To obtain information about service, accessories and other products, contact: Huntron Inc. 15720 Main Street., Suite#100 Mill Creek, WA 98012 In North America, call 800-426-9265 or 425-743-3171. Huntron is also accessible by: ♦...
- Page 3 (1) year from the date of purchase. Huntron further warrants that the software will perform in substantial conformance with the system specifications of the Huntron ProTrack Prober at the time of purchase and for the period of one (1) year thereafter.
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Page 4: Table Of Contents
VISION SYSTEM FOR PROBER IIC AND IIIC..........2-3 HIGHER Z FOR PROBER IIC AND IIIC............2-3 Section 3 INSTALLATION 3-1. PC REQUIREMENTS..................3-1 3-2. INSTALLING THE HUNTRON WORKSTATION FOR WINDOWS SOFTWARE .....................3-2 3-3. INSTALLING THE HARDWARE ..............3-2 3-4. INSTALLING THE CAMERA INTERFACE CARD ........3-3 3-5. - Page 5 CUSTOM APPLICATIONS 7-1. CUSTOM SOFTWARE FOR EXTERNAL TESTERS........7-1 7-2. IMPORTING CAD DATA FROM PRINTED CIRCUIT BOARD ....LAYOUT SOFTWARE TO THE HUNTRON WORSTATION FORMAT ...7-1 7-3. HINTS & TECHNIQUES FOR PROBING SURFACE MOUNT COMPONENTS................7-2 7-4. PROBING BOARDS WITH COMPONENTS THAT ARE MORE THAN 3”...
- Page 6 User’s Manual...
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Page 7: What Is A Robotic Prober
INTRODUCTION What is a Robotic Prober? A Huntron Robotic Prober is a universal test fixture for accessing test points on printed circuit boards without the need for test clips and cables. When connected to the Huntron ProTrack I model 20 (hereafter referred to simply as ProTrack), the Prober allows fully automatic power off testing of surface mount, pin-grid-array, discreet through-hole components, DIPS, SIPS, QPFs, SOICs, and edge connectors on printed circuit boards. -
Page 8: Hardware Features
HARDWARE FEATURES A complete troubleshooting workstation consists of a PC, Robotic Prober and a ProTrack. The Prober Hardware features are discussed below. • The XYZ stages are stainless steel linear raceways providing an accurate means of moving a light load. •... - Page 9 • An emergency STOP switch allows immediate suspension of Prober operation. • There are 5 Common connectors accessible at the front panel which allows connection to the Printed Circuit Assembly signal reference points. The rear or side panel provides Trig-In and Trig-Out connectors for providing hardware handshaking with external test instruments other than the ProTrack.
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Page 10: Specifications Of The Prober Ii And Iii
SPECIFICATIONS OF THE PROBER II AND III The table below outlines the specific differences between each Prober model. Prober II Prober III Comments Physical 20” W, 24” D, 12” H. 36” W, 29” D, 14” H Dimensions (50.8 x 60.96 x 30.48 cm) (91.4 x 73.66 x35.56 cm) Max. - Page 11 Specification Prober II and Prober III Linear speed 4 inches/sec (10.16 cm/sec) Probing Accuracy +/- 0.004” (+/- 101.6 microns) Vision system CCD 192 by 165 pixels, Monochrome Light Source Dual red LED, 660nm, or dual white LED Power requirements 115VAC or 230 VAC line voltage. 60 W Max.
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Page 12: Specifications Of The Prober Iic And Iiic
1-5 SPECIFICATIONS OF THE PROBER IIC AND IIIC Prober IIc and Prober IIIc models are different from the Prober II and Prober III. New features are listed below: 1) Color camera with color PCI frame grabber card. 2) White LED light source with adjustable intensity 3) New Z axis assembly with 4.2”(107mm) Z travel for Prober IIIc 4) Prober IIIc has an extra Printed Circuit Assembly slot User’s Manual... - Page 13 Specifications for the Huntron Prober IIc Prober IIc Comments Specification Physical Dimensions 20” W, 24” D, 14” H. (50.8 cm W, 60.96 cm D, 35.56 cm H) Maximum board-under-test 14.5” W by 14” D Max thickness is 100 mils (2.54mm) size (36.83 cm W by 35.56 cm D)
- Page 14 Specification for the Huntron Prober IIIc. Prober IIIc Comments Specification Physical Dimensions 36” W, 29” D, 15.7” H (91.44 cm W, 73.66 cm D, 39.88 cm H) Max. board-under-test size 22” W by 23” D Max thickness is 100 mils (55.88 cm W by 58.42 cm D)
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Page 15: Safety Information
SAFETY INFORMATION Symbols: The following symbols are used either in this manual or on the unit: CAUTION Refer to Manual Protective Ground (Earth) Terminal Line Fuse Replacement: Voltage Select/Line Fuse tray: The power entry module on all Probers includes the power switch (0 = OFF, 1 = ON), power cord connector, and a removable tray which selects the line voltage and holds the line fuses. -
Page 16: Weee And Rohs Status
WEEE and RoHS Status We, at Huntron are aware of the recycling needs for Waste Electronic and Electrical Equipment (WEEE) and Restriction of certain Hazardous Substances (RoHS) and are co-operating with systems established, worldwide for the collecting and recycling of our products. -
Page 17: Theory Of Operation
SECTION 2 THEORY OF OPERATION INTRODUCTION This section describes how various components of the Prober system work. The purpose of this section is to simply explain the functional characteristics of the main components of the Prober system. FUNCTIONAL OVERVIEW The following figure shows the components of the Prober system. The probe connected to the Z axis is directly connected to the BNC Signal connector located at the Prober back or side panel. -
Page 18: Stepper Motor Controller
STEPPER MOTOR CONTROLLER The Stepper Motor Controller receives ASCII commands from the PC. The controller applies direction pulses for clockwise or counter-clockwise rotation and step pulses at different frequencies to the motor driver. STEPPER MOTOR DRIVERS The purpose of the Motor Drivers is to supply sufficient and regulated current to each phase of the motor winding. -
Page 19: Vision System For Prober Iic And Iiic
The image from the camera system is displayed on the PC monitor. A PC mouse or trackball is used to point to a particular pixel on the camera image. The position of the pointer and the position of the motors provide accurate data for storing the position of each test point. Based on this data and the two user defined alignment points, it is possible to ensure accurate repeatability even when the board is not placed in the exact position as the original "golden"... -
Page 20: Installation
3-1 PC Requirements The following requirements are provided to assist you in purchasing the correct computer system to use with the Huntron Personal Troubleshooting Workstation These are the recommended minimum computer requirements: • IBM Compatible PC with Pentium class CPU. -
Page 21: Software
Power up your computer. Insert the software CD into the CDROM drive. To install the Huntron software, run the SETUP.EXE program on the CDROM. You can do this by clicking Start and then Run from Windows. Now type in D:\setup.exe if your CDROM drive is Drive D. -
Page 22: Installing The Camera Interface Card
POWER ENTRY MODULE FUSE, T500mA 250V FUSE, T250mA 250V 5X20mm 5X20mm FUSE TRAY 220-240VAC Voltage Selection. NOTE: The above voltage setting indicates 110-120V AC power (arrow pointing towards the — mark.) If your line voltage is 220–240VAC, you will need to change the Voltage Select/Line Fuse Tray setting. -
Page 23: Prober
Unpack the ProTrack as outlined in the unpacking instructions. Install the hardware as outlined in the ProTrack User’s Manual. Locate the Parallel IEEE cable included in the ProTrack package. Power off the computer and connect the parallel IEEE cable from the COMPUTER connector on the ProTrack to the primary Printer Port on the Computer. -
Page 24: Connecting The Prober Serial Interface To The Computer
3-7 Connecting the Prober Serial Interface to the Computer If your computer does not have a mouse port, you will need two serial ports, one for the Prober and the other for a serial mouse or trackball. If you have another type of port (USB) for the mouse, then you will need only 1 serial port for the Prober. - Page 25 For Windows 2000/XP Installation After the Windows Boot-up process has completed, Windows will detect the PCI Camera Interface Card and prompt you for driver installation. The driver will not be found. Finish without installing the driver. Start the Huntron Workstation software.
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Page 26: Installing The Pci Drivers For The Color Camera
Huntron Workstation software. For Windows 2000/XP 1) Insert the Huntron Workstation CD in your CD drive. If you have installed the Huntron Workstation Software (Section 3-2) and then installed the PCI Color Interface card (Section 3-4), you are now ready to install the drivers. -
Page 27: Camera Offset Routine
3-10 Camera Offset Routine This routine is necessary for setting up the distance between the camera center and the probe tip. Refer to Section 4-3 for camera image adjustments. Set up a sample board for the Top slot. Refer to the “Tree Building” section in the Help Menu for details on how to setup a board. -
Page 28: Optional) Sample Board Setup
3-11 (OPTIONAL) Sample Board Setup This procedure is intended to teach you the basic procedure for setting up a board and scanning the components for testing. More details are provided in the Help section of the Software. Choose a sample board that has 4 DIP type components. This procedure assumes that each component consists of 28 pins. - Page 29 camera image will be updated. Always press Set to record the new position. Press OK to exit the Align screen. Setup the XY positions of U1 (first component) Click Control, then click Teach to set up the XY locations of the component pins. Setup the XY locations of U1.
- Page 30 Ensure that the common cable is connected to the Common node on the your sample board. The banana plug of this cable should be plugged into “COM” terminal on the prober front panel. Click Control and then select Scan Component. Type in a serial number and click OK. The probe will move to pin 1 of U1 and the signature will be recorded.
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Page 31: Help On Help
Whenever you need detailed information, click Help in the appropriate screens. The help feature is context sensitive, so you can click on the green highlighted text to get additional information on related topics. If you need further assistance, call the Huntron Technical support at 1-(800)-426-9265 or (425) 743 3171 email: support@huntron.com NOTES: User’s Manual... -
Page 32: General Hardware Maintenance
SECTION 4 GENERAL HARDWARE MAINTENANCE 4-1 RAIL LUBRICATION The linear raceways have to be lubricated using the supplied “linear lube” which is included in your Tool kit. Do not experiment with any other lubricant. Turn the Prober power off. Apply a generous amount of lubricant along each side of the rail as shown below. - Page 33 4-2 CAMERA IMAGE ADJUSTMENTS (FOR ISA CAMERAS ONLY) This procedure allows you to adjust the Camera system's brightness and contrast parameters so that an adequate image is produced on the PC monitor. Note: Each system is calibrated to factory specifications. However, the image quality on various computers and monitors may differ at the customer site.
- Page 34 Open the computer so that you have access to the top part of the Camera interface card. There are two potentiometers on the top end. Do not remove the card. You will need to adjust these potentiometers while running the Prober software. Clamp the darkest pcb that you have in the top slot of the Prober clamping system.
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Page 35: Camera Image Adjustments (For Isa Camera Only)
Turn the LED intensity to the maximum level and check the image quality. It should be bright at the maximum LED intensity. Turn the LED intensity down 1/4 turn and ensure that a clear image is displayed. If it was necessary to rotate R9, always check R8 for a 1.9 Volts reading. If you still are getting an unsuitable image, try to adjust R9 so that TP1 reads between 1.6 and 1.9 volts. - Page 36 Clamp the darkest PCB that you have in the top slot of the Prober clamping system. b) Check the Camera image. From the Huntron Workstation for Windows software, click Control, then Manual, then Prober. Select the Motor OFF switch. The screen should look like this: User’s Manual...
- Page 37 This will turn the X and Y axis motor power off so that you can manually move the Z-axis over the PCB. Click the Camera button. An image of your PCB will be displayed. An example screen is shown below: Click Live to display a live image of the PCB.
- Page 38 make the overall image brighter but may introduce unwanted grays. Click Image or Live to see the effect of your change The PCI camera also has Gain and Bias adjustments. The Gain setting modifies the signal gain from the CCD. The maximum is 999. The default for Gain is 100. A too high Gain value will make the image appear blurred and noisy with too many bright areas and white pixels.
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Page 39: Spring Contact Test Probes
4-4 SPRING CONTACT TEST PROBES The Prober uses a spring loaded probe for making contact with a test point. Various probe styles are available depending on the type of components tested. These probes are commonly used in bed-of-nails fixtures and are readily available from a large number of manufacturers. Since the probe fits into a specific receptacle, only specific probe sizes can be used. -
Page 40: Replacing Broken Probe Tips
4-6 REPLACING BROKEN PROBE TIPS It is not necessary to disassemble any parts for this operation. The probe tip may break off from the probe holder in such a way that you are unable to remove the entire part with needle nose pliers. A small drill bit is provided in the Tool kit. -
Page 41: Probe Styles
Use this probe for fine pitched devices. (tip diameter = 18 mils) Best pointing accuracy of any probe. IDI part number ICT-S25UR-5.5DGD-S (Huntron P/N 07-2112) FLEX TIP SPEAR PROBE Used for testing contaminated boards or conformal coatings. Fine pitch devices can also be tested with this probe. - Page 42 Extended length for densely packed components. IDI part number SR25B-6.3D (Huntron P/N 07-2106) TRI-NEEDLE PROBE Used to test contaminated boards or pierce conformal coatings. Best for 100 mils or wider spaced leads or pads.
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Page 43: Specifications For The Probe Receptacle
Phone: (913) 342-5544 FAX: (913) 342-7043 *IDI part numbers are subject to change. If any of the above probes are not available, contact IDI for an equivalent or better part. To order from Huntron, please use the Huntron part number. User’s Manual... -
Page 44: Using The Burn-In/Offset Board To Check For Proper
If the same pins fail consistently, you may have to check if the original pins were setup correctly. If the Prober misses pins randomly and is unable to make at least 10 passes, then call Huntron Technical Support for more troubleshooting tips. - Page 45 4-11 Focus and Aperture adjustment on Prober models IIc and IIIc The camera lens on the color camera have separate Focus and Adjustment rings. These adjustment rings can be locked via locking screws. The aperture setting is factory set to between 8 and 16 and will be locked.
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Page 46: Prober Test Board Support Accessories
Prober. The description of each accessory includes an illustration and some examples of typical uses. Huntron part numbers are shown at the end of this section. -
Page 47: Crossbar
CROSSBAR The Crossbar is normally used to hold the front side of the test board. (1 Crossbar is included in the Prober package) User’s Manual... -
Page 48: Slide Bar
5-3 SLIDE BAR The Slide Bar mounted on a Crossbar holds the left front corner of the test board. The front of a Slide Bar on a Crossbar can hold the Printed Circuit Assembly away from the Crossbar to allow components on the front edge of the board to be reached by the probe tip. -
Page 49: Extended Slide Bar
5-5 EXTENDED SLIDE BAR A Crossbar in the middle slot underneath the test board with an Extended Slide Bar can give support to the unsupported side of the test board. Also, a Crossbar in the middle slot is the main support for holding Printed Circuit Assemblies in the top slot that protrude from the front of the Prober. - Page 50 This figure shows how to mount either an irregularly shaped board or a long and narrow board. The additional Crossbar and Extended Slide Bar hold the middle of the unsupported edge of the board and prevent the board from flexing while being probed.
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Page 51: Support Kit For Large Boards
5-6 SUPPORT KIT FOR LARGE BOARDS Two blocks are included in the Prober III Package. The block can hold three different length pins which are used to prevent large boards from flexing. The 3” pin is used for boards mounted in the top slot. The 2”... -
Page 52: Auxiliary Probe Accessory Kit
Huntron Prober. Introduction A Huntron Prober has a spring loaded test probe attached to the Z axis. This probe is directly connected to a flexible coaxial cable which is terminated with a BNC connector at the Prober back panel. - Page 53 Figure 1. Installation of the Auxiliary Probe Kit on Prober II User’s Manual...
- Page 54 NOTES: This page is intentionally left blank. User’s Manual...
- Page 55 Installation of the Auxiliary Probe kit. (Refer to Figure 1) 1. Install the Auxiliary Probe Holder using the 2 supplied screws. 2. Insert your oscilloscope probe (not supplied with this kit) into the clamp hole of the Auxiliary Probe Holder and tighten the Thumb Screw Knob. The oscilloscope probe should now be firmly attached to the Prober Z axis.
- Page 56 6. Connect the other end of the Coaxial Cable Assembly to the BNC connector on the right side of the Z Axis Cover. 7. Attach the Spiral Wrap to the oscilloscope cable by twisting it so that it wraps around the cable as shown.
- Page 57 Please use these Huntron part numbers for ordering additional accessories. Prober I Prober II Prober III Prober IIIc and IIc Board Spacer 98-0221 98-0111 98-0111 98-0292 Cross Bar w/Locks 98-0222 98-0110 98-0119 98-0019 Slide Bar 98-0109 98-0109 98-0109 98-0109 Slide Bar Extension...
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Page 58: Application Notes
SECTION 6 APPLICATION NOTES 6-1 HOW TO USE THE FRONT PANEL COMMONS The Prober front panel commons are marked Common, COM1, COM2, COM3 and COM4. These common terminals are used for applications requiring more than one Common connection to the board-under-test. For example, you may want to setup a board so that some components are tested with respect to the Ground terminal and others with respect to Vcc or any other power supply rail. -
Page 59: Using The Common Clip Cable With The Ferrite Noise
USING THE COMMON CLIP CABLE WITH THE FERRITE NOISE SUPPRESSER One of the Common cables supplied has a Ferrite suppresser looped around one end of the cable. Use this Common cable if you are testing at low voltages (below 3V). Low voltage testing is sensitive to external noise being coupled into the test system. -
Page 60: Hardware Handshaking
HARDWARE HANDSHAKING The Prober hardware also provides a TTL type output and input for allowing hardware handshaking with external testers. The Prober Trigger-Out and Trigger-In signals are available via BNC connectors at the Prober back panel. PROBER TRIG IN/OUT SIGNALS Prober Trigger-Out signal The Trigger-Out signal is a 5 volt or 0 volt signal which can be used to indicate to the external tester to execute it’s test routine. -
Page 61: Example Of A Conceptual External Tester
• The XY positions of 64 test pins are set up using the Align, and Teach routines from the Huntron Workstation for Windows software. • The appropriate parameters in the Settings and External menus are setup. Refer to the Help Menu for specific details on External Settings. - Page 62 • The voltmeter, upon detecting this signal, takes the reading and after the value is stored, set it’s Trigger-Out to a Low state. • The Prober detects it’s Trigger-In as Low, indicating that the voltmeter is done taking the reading. The probe moves Up and then to the next test point, making contact with it. The Prober’s Trigger-Out then goes High indicating to the voltmeter to take the next reading.
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Page 63: Custom Applications
Huntron software can interpret. This format is a custom Huntron ASCII CAD file created by third party data conversion software. A detailed description of the entire import process is discussed in the software Help file under the keyword “Import”. -
Page 64: Hints & Techniques For Probing Surface
HINTS AND TECHNIQUES FOR PROBING SURFACE MOUNTED COMPONENTS Probing fine pitched devices can be difficult. The pins of these devices are sometimes smaller than the width of the test probe. J-leaded pins bend underneath the component, so no reliable access is available for probing at the pcb level. Some devices have Metric number spacing, thus forcing the software to round off the spacing numbers to the nearest 1/1000 of an inch leading to inaccurate calculations. - Page 65 Some boards have components like capacitors, heat sinks, and transformers that are more than 3 inches high. Probing the component side of these boards is difficult due to the limited Z axis up/down travel. These boards have to be probed on the solder side. However, the component may be in the way when you try to clamp it into the board slot.
- Page 66 Sometimes, the common connections to the board-under test is difficult. The additional clearance may also make it easier to access the Common connections. Re-install plate when this feature is not needed. Prober II End of document User’s Manual...
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