1. Manuals
  2. Brands
  3. Cablescan Manuals
  4. Test Equipment
  5. 256/PC
  6. Instruction manual

Cablescan 256/PC Instruction Manual

Continuity tester
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
CONTINUITY TESTER
MODEL 256/PC

Advertisement

Table of Contents
loading

Related Manuals for Cablescan 256/PC

Summary of Contents for Cablescan 256/PC

  • Page 1 CONTINUITY TESTER MODEL 256/PC...
  • Page 3 Model 256/PC Instruction Manual Page iii February 25, 2005 MODEL 256/PC INSTRUCTION MANUAL (Part Number 5900379) Cablescan A Eubanks Company 3022 Inland Empire Blvd. Ontario, California 91764 (909) 483-2436 Fax (909) 483-2463 www.cablescan.com...
  • Page 4 CABLESCAN (hereinafter “CABLESCAN”) products are warranted to the original owner for a period of twelve (12) months from the date of shipment from CABLESCAN’s factory, or in the first 2,080 hours of operation by the customer (whichever comes first), to be free from defects in material and workmanship for the use for which they are intended by CABLESCAN, under normal operating conditions and maintenance.

  • Page 5: Table Of Contents

    TABLE OF CONTENTS COPYRIGHT NOTICE....ERROR! BOOKMARK NOT DEFINED. WARRANTY........ERROR! BOOKMARK NOT DEFINED. CUSTOMER POLICY.....ERROR! BOOKMARK NOT DEFINED. SPECIFICATIONS ................. VIII THE MODEL 256/PC CONTINUITY TESTER..........1 Major Functions ................... 1 Tester Features ................... 2 Signature Codes ..................2 User Labels....................2 PC Interface and Control ................
  • Page 6 Test Commands ..................41 Build Commands ..................42 Print Commands ..................43 Program Commands.................. 44 MODEL 256/PC VERSUS MODEL 256 ...........46 MODEL 256/PC HARDWARE CHANGES..........48 Remote Output Signals................48 Scanner Board Jumpers ................49 CARE OF THE MODEL 256/PC ..............50 Cleaning.....................
  • Page 7 Model 256/PC Instruction Manual Page vii LIST OF FIGURES Figure Description Page Model 256/PC Continuity Tester..............1 Model 256/PC layout ...................4 Program Storage - Accommodations and Use ..........5 Simplified LEARN KNOWN GOOD Procedure ........6 Simplified TEST Procedure (Single Test) ..........7 Simplified LOOP TEST Procedure (Continuous Test) .......8 Simplified SAVE PROGRAM Procedure ...........9...

  • Page 8: Specifications

    Page viii Model 256/PC Instruction Manual SPECIFICATIONS TEST POINT CAPACITY 256 points; 64 points per connector OPERATING SPEED Test: : < 1 sec.; Self Test: < 5 sec.; Learn: < 1 sec. TEST PARAMETERS Short Threshold: < 100 Ohms Open Threshold: >...

  • Page 9: The Model 256/Pc Continuity Tester

    It is self-programming and can retain up to twenty-four programs at a time in memory. The Model 256/PC tests for both opens and shorts from one point to all other points in cables and harnesses of up to 256 connections. Circuit types that can be tested include flat ribbon cables, discrete wiring harnesses, and those having jumpers, daisy chains, and other interconnect devices.

  • Page 10: Tester Features

    Six-character User Labels can be assigned to test points for each wire list program stored in the Model 256/PC. Each User Label relates a harness connector/pin to a test point on the rear of the tester. When User Labels are assigned to point numbers, all displays and printouts will show User Labels in lieu of the point numbers.

  • Page 11: Pc Interface And Control

    Page 3 PC INTERFACE AND CONTROL The Model 256/PC does not have a built-in user label or wire list editor. Programming of user labels, as well as programming wire lists without learning a cable, is performed with a PC and Cablescan’s option PC DOS software program, TERM.
  • Page 12 250mA/250V CAUTION! For continued protection against risk of fire, replace only with same type and rating of fuse. Rear Panel Layout SEQ. RANDOM ERROR TEST RESET BUILD BUILD LIST MENU MODEL 256 Front Panel Layout Figure 2. Model 256/PC Layout...
  • Page 13 Model 256/PC Instruction Manual Page 5 INTERNAL MEMORY PROGRAM CARTRIDGE (RAM) EEPROM) PROGRAM #1 WORKING MEMORY PROGRAM #2 PROGRAM #1 PROGRAM #3 PROGRAM #2 PROGRAM #4 PROGRAM #8 PROGRAM #16 • Create Test or Assembly program in Working Memory during "Learn" procedure.

  • Page 14: Using The Model 256/Pc

    After becoming properly acquainted with the Model 256/PC, the user can refer to the abbreviated procedures illustrated in Figures 4 through 12. Detailed procedures are provided in the Operations section.
  • Page 15 Load program (Figure 8). Connect harness to be tested. Press TEST, and the Model 256/PC will perform one test scan. For a successful test, the display will show: Passed XXXX/YYYY Where XXXX is the number of tests that have passed and YYYY is the number of tests that have been run.
  • Page 16 Page 8 Model 256/PC Instruction Manual FOOTSW ITCH P R O B E E N A B L E P R IN T E R /S E R IA L 1 2 7 1 2 8 2 5 5 1 9 3...
  • Page 17 Model 256/PC Instruction Manual Page 9 FOOTSW ITCH P R O B E E N A B L E P R IN T E R /S E R IA L 1 2 7 1 2 8 2 5 5 1 9 3...
  • Page 18 Page 10 Model 256/PC Instruction Manual FOOTSW ITCH P R O B E E N A B L E P R IN T E R /S E R IA L 1 2 7 1 2 8 2 5 5 1 9 3...
  • Page 19 Model 256/PC Instruction Manual Page 11 FOOTSW ITCH P R O B E E N A B L E P R IN T E R /S E R IA L 1 2 7 1 2 8 2 5 5 1 9 3...
  • Page 20 Connect printer per setup instructions in "Preparation" section. 4. Press ERROR LIST. The Model 256/PC will perform a test of the harness, and all errors will be printed, or "Passed XXXX/YYYY" will be printed for a successful test. (Where XXXX is the number of tests that have passed and YYYY is the number of tests that have been run.)
  • Page 21 Model 256/PC Instruction Manual Page 13 FOOTSW ITCH P R O B E E N A B L E P R IN T E R /S E R IA L 1 2 7 1 2 8 2 5 5 1 9 3...
  • Page 22 Page 14 Model 256/PC Instruction Manual FOOTSW ITCH P R O B E E N A B L E P R IN T E R /S E R IA L 1 2 7 1 2 8 2 5 5 1 9 3...

  • Page 23: Preparation

    If such is found, notify Cablescan and the carrier at once. Save the shipping carton and packing materials for later use. INITIAL HOOKUP When shipped from the factory, the Model 256/PC is set for operating from one of the following power sources: 104 to 126 VRMS at 50/60 HZ.

  • Page 24: Power Turn-On And Self Test

    Turn power on at the unit by moving the power switch on the rear panel to ON; the display will light up and the tone will sound. For self test of the basic Model 256/PC, verify that no circuits are connected to the interface connectors on the rear panel.

  • Page 25: Printer Hookup

    Printer Cable The printer connector on the Model 256/PC is also used for external control signals that are not printer related. Therefore, a fully loaded 25-pin printer cable should not be used. The pin assignments for the printer are as follows:...
  • Page 26 Page 18 Model 256/PC Instruction Manual NOTE Pin #11 is used to indicate when the printer is ready to receive data. In Okidata printers, the signal name is "Supervisory Send Data," it may also be referred to as "Printer Busy." The printer sets this signal HIGH to indicate the print buffer is full and to stop sending data.

  • Page 27: Pc Interface

    Cablescan provides an optional PC software program (TERM) which can be used to control and transfer programs between the Model 256/PC and the PC. The software can also be used to transfer programs between the Model 256/PC and other Cablescan testers.

  • Page 28: Changing Power Setting

    Page 20 Model 256/PC Instruction Manual CHANGING POWER SETTING The Model 256/PC can be set to the other alternate power by opening the unit and changing an internal switch as follows: Disconnect power cord from unit and remove program cartridge.

  • Page 29: Controls And Display

    (Wrist Strap or Probe) can be used in locating the proper wire from a bundle. The assembly sequence of the wire list is first programmed off-line with a PC and then downloaded with optional PC software to the Model 256/PC. Once in the tester, the program can be saved to tester memory.
  • Page 30 "Passed" if no errors. Initiates single test of assembly and displays errors. TEST Terminates current mode and places Model 256/PC in "wait" state until RESET next mode selection is made. Used for stepping up and down through menu to select a mode among UP/DOWN the fourteen available.
  • Page 31 Model 256/PC Instruction Manual Page 23 Reset When Reset is selected, the Tester assumes a "wait" state, and it remains in that state until another mode is selected. Reset also can be used to terminate a mode in operation. Up/Down Arrows The Up and Down arrows are used to select from the menu-selectable modes.

  • Page 32: Menu-Selected Functions

    Page 24 Model 256/PC Instruction Manual MENU-SELECTED FUNCTIONS The fourteen menu-selected functions are as follows: Learn Known Good Print Wire List Save Internal Print User List Save Cartridge Load Internal Delete Internal Load Cartridge Delete Cartridge Loop Test Clear Memory...
  • Page 33 Loop Test In this mode, the Model 256/PC scans the connected assembly repeatedly. This mode can be used to test for intermittent connections. When an error is encountered, the test is halted and the type of error and its location are displayed. Pressing the Menu Run restarts the test. Each time a...

  • Page 34: Display

    Self Test This mode is used to test the Model 256/PC. Basically it checks for opens and shorts on the scanner transmit/receive lines (scanner boards). The error type (open or short) and the faulty points are displayed. No test harness may be connected to the unit while in the Self Test mode.

  • Page 35: Operating Instructions

    OPERATING INSTRUCTIONS INTRODUCTION The following detailed procedures are provided for acquainting the new user with the Model 256/PC. Once the details are understood, abbreviated routines, such as those in Figures 4 - 11, will be sufficient. LEARN KNOWN GOOD Before testing, it is necessary to prepare a program for the harness to be tested, unless a program already exists.

  • Page 36: Wire List Printing

    Page 28 Model 256/PC Instruction Manual WIRE LIST PRINTING This procedure requires hookup of the optional printer. A wire list printout provides a hardcopy of the test program. The wire list printout also includes the signature for the program for future reference.

  • Page 37: Test

    Model 256/PC Instruction Manual Page 29 TEST When TEST is executed, one complete scan is performed on the harness under test. If the scanned configuration compares exactly with the wire list program in working memory, the test is successful and the display will show "Passed 0001/0001." The first number after Passed represents the number of tests that have passed.

  • Page 38: Error List

    Connect printer to be tested. 4. Press ERROR LIST. The Model 256/PC will perform a single test and will print a list of all errors, or it will print "Passed 0001/0001" if there are no errors. When test and printouts are finished, disconnect harness.

  • Page 39: Loop Test

    Model 256/PC Instruction Manual Page 31 LOOP TEST Executing the LOOP TEST will initiate continuous scanning of the connected harness. When an error is encountered, the test is halted and the error is displayed. Pressing MENU RUN will restart the test. A complete Loop Test procedure is provided below. Once familiarized, the user may refer to Figure 6.

  • Page 40: Saving A Program

    Page 32 Model 256/PC Instruction Manual SAVING A PROGRAM The SAVE PROGRAM function is divided into two modes, SAVE INTERNAL, and SAVE CARTRIDGE. These modes are used to copy the program from the working memory to one of the twenty-four storage locations. There are eight locations for internal program storage and sixteen for storing to cartridge.

  • Page 41: Loading A Program

    Model 256/PC Instruction Manual Page 33 LOADING A PROGRAM The LOAD PROGRAM function is divided into two modes, LOAD INTERNAL, and LOAD CARTRIDGE. These modes are used to load one of the twenty-four stored programs into the working memory. There are eight locations in internal memory and sixteen in the removable cartridge.

  • Page 42: Deleting A Program

    Page 34 Model 256/PC Instruction Manual DELETING A PROGRAM The DELETE PROGRAM function is divided into two modes, DELETE INTERNAL, and DELETE CARTRIDGE. These modes are used to erase a program from memory. (It does not affect the program currently in working memory.) A complete Delete procedure is provided below.

  • Page 43: Sequential Build (Seq Build)

    This is a recorded procedure that provides an assembly sequence for a specific wire harness, using a program downloaded to the Model 256/PC and arranged in a specific sequence order. The SEQ BUILD mode requires use of the wrist strap to locate and identify displayed points, and the foot switch to bypass sequence steps.

  • Page 44: Random Build

    Page 36 Model 256/PC Instruction Manual RANDOM BUILD RANDOM BUILD provides assembly continuities (From/To points) for wire ends selected (touched) at random (no specific sequence is required). A complete procedure is provided below. Once familiarized, the user may refer to Figure 12.

  • Page 45: Wire Identification (Search)

    Page 37 WIRE IDENTIFICATION (SEARCH) The Model 256/PC may be used as an assembly or troubleshooting aid, using the SEARCH mode and the wrist strap or probe. To select and use the SEARCH mode, proceed as follows: Insert wrist strap or probe lead into PROBE jack on rear panel.

  • Page 46: Setting Baud Rate

    Model 256/PC Instruction Manual SETTING BAUD RATE The Model 256/PC has two baud rate settings: 1200 and 9600. The 1200 baud rate is used for printing. The 9600 baud rate is used when interfacing the serial port to a PC. Set Baud Rate must first be enabled by the ENABLE jack on the rear panel.

  • Page 47: Print User List

    Model 256/PC Instruction Manual Page 39 PRINT USER LIST This procedure requires hookup of the optional printer. A User List printout provides a hardcopy of the User Labels for a specific test program. The User List printout also includes the signature for the program for referencing it to the wire list.

  • Page 48: Operating Instructions - Keyboard

    OPERATING INSTRUCTIONS - KEYBOARD INTRODUCTION The Model 256/PC can be controlled from a keyboard instead of the front panel controls. Keyboard control can be added by interfacing to an optional CRT/Terminal or a Personal Computer (PC) that is running Cablescan PC DOS Terminal Emulation Program, TERM. Refer to the Preparation section for setting up a CRT/Terminal or PC.

  • Page 49: Test Commands

    Model 256/PC Instruction Manual Page 41 TEST COMMANDS The following commands are related to the testing of opens and shorts, and the self testing of the Model 512. These are two-letter commands, which are executed by pressing the two letter keys followed with an ENTER.

  • Page 50: Build Commands

    Model 256/PC Instruction Manual BUILD COMMANDS The following commands relate to using the assembly features of the Model 256/PC. These modes use Body Conductance to locate desired wires for assembly. At the system prompt, enter the two-letter command, followed by an ENTER.

  • Page 51: Print Commands

    Model 256/PC Instruction Manual Page 43 PRINT COMMANDS The following list contains all print-related commands. The printout will also appear on the monitor during printing, or the monitor only if no printer connected. Verify the Printer power switch is on and the printer select light is on. At the system prompt, enter the two- letter command, followed by an ENTER.

  • Page 52: Program Commands

    Page 44 Model 256/PC Instruction Manual PROGRAM COMMANDS The following list contains commands related to loading, saving, and deleting wire list programs. These are two-letter commands, which are executed by pressing the two letter keys followed with an ENTER. Tester...
  • Page 53 Model 256/PC Instruction Manual Page 45 Learn Known Good This command is used to create a wire list program automatically by scanning a connected harness assembly and storing the continuities in the working memory. The learned program overwrites the program that is in the working memory. If the program in the working memory has not been saved and is to be used later, use one of the save commands before running Learn Known Good.

  • Page 54: Model 256/Pc Versus Model 256

    In addition, when Cablescan optional TERM software is installed and run on the PC, wire list programs can be downloaded into the Model 256/PC, or programs can be read from the tester and stored on disk in the PC. Wire list programs previously created for other Cablescan testers, such as the Model 512 and 4000, are compatible and can be downloaded and run on the Model 256/PC as long as they do not exceed 256 points.
  • Page 55 Model 256/PC The Model 256/PC uses a signature code for selecting a program in lieu of a program location number. The tester automatically select an available location in memory when a program is saved and does not copy over existing programs. A delete program function has been added to erase an existing program.

  • Page 56: Model 256/Pc Hardware Changes

    Pin 23 Pin 23 NOTE Early Model 256 and Model 256/PC testers were originally setup as shown under the Standard Jumper Setting. The Alternate Jumper Setting, using W4 and W5 in lieu of W1 and W2, outputs the signals on the same connector pins as the Model 512 jumper settings.

  • Page 57: Scanner Board Jumpers

    Each pair of jumper pins are labeled from 1 to 4 representing the scanner board number. The Model 256/PC has two scanner boards as shown in figure 2. The top scanner board is board number one and requires a jumper across jumper pair number 1.

  • Page 58: Care Of The Model 256/Pc

    Clean interface receptacle contacts with non-abrasive contact cleaner. REPAIR If the Model 256/PC requires repair for any defect of manufacture, and it is within the warranty period, contact Cablescan, Inc., for instructions on returning it to the factory. If the Model 256/PC is beyond warranty period, and repair is necessary, it still is advisable to return the unit to the factory for repair.

  • Page 59: Parts List

    Model 256/PC Instruction Manual Page 51 PARTS LIST CPU BOARD ASSEMBLY - 5211066 DESCRIPTION SYMBOL 2000030 INDUCTOR, FERRITE L1-L9 2000032 TRANSFORMER 2100079 VOLTAGE SWITCH 2210008 BUZZER DC 6V 2230003 CRYSTAL 4.00 MHZ 2230010 CRYSTAL 1.8432 MHZ 3100043 FET VN0104N3 3100044...

  • Page 60: Scanner Board Assembly - 5210869

    Page 52 Model 256/PC Instruction Manual DESCRIPTION SYMBOL 6100001 CAP, 0.1 MFD, 50V C2,6,7,11,12,16 6100001 CAP, 0.1 MFD, 50V C17,20,22,24 6100022 CAP, 0.01 MFD, 1000V 6200004 CAP, 4700 MFD, 16V 6200007 CAP, 2200 MFD, 25V 6200013 CAP, 10 MFD, 35V 6200014 CAP, 4.7 MFD, 10V...
  • Page 61 Model 256/PC Instruction Manual Page 53 Figure 20. Schematic - CPU Board (1 of 3)
  • Page 62 Page 54 Model 256/PC Instruction Manual Figure 20. Schematic - CPU Board (2 of 3)
  • Page 63 Model 256/PC Instruction Manual Page 55 Figure 20. Schematic - CPU Board (3 of 3)
  • Page 64 Page 56 Model 256/PC Instruction Manual Figure 21. Schematic - Scanner Board (1 of 3)
  • Page 65 Model 256/PC Instruction Manual Page 57 Figure 21. Schematic - Scanner Board (2 of 3)
  • Page 66 Page 58 Model 256/PC Instruction Manual Figure 21. Schematic - Scanner Board (3 of 3)
  • Page 67 NOTES...
  • Page 68 Cablescan 5900379 REV G...

Table of Contents