TS 301 - Ansaldo STS
Contents
1. gt SERVICE MANUAL 6219 Description and Maintenance TS 301 TEST SET N451400 2401 for MICRO 700 Controller PCB ay 1984 EE UNION SWITCH 8 SIGNAL DIVISION IDOO76D DN0422A AMERICAN STANDARD INC SWISSVALE PA 15218 PRINTED IN USA UNION SWITCH amp SIGNAL Ts 301 UNION SWITCH amp SIGNAL D SECTION I GENERAL INFORMATION 1 1 INTRODUCTION The TS 301 Test Set N451400 2401 is used exclusively for testing the Controller PCB N451082 0208 of the Micro 700 System and the individual PROM s of this PCB The TS 301 sets up Controller PCB tests which in turn are executed by a diagnostic PROM inserted in place of IC8 of the PCB When not in service this test PROM is stored on the front panel of the set Controller PCB PROM s removed during board testing may be independently checked in the TS 301 as well as the test PROM itself Results of all test programs are displayed with LED s The TS 301 also incorporates jumper circuits which put selected Controller PCB inputs and outputs in closed loops A to satisfy basic operating requirements of the board The TS 301 is equipped with a manually operated mechanism for opening and closing the PCB J1 and J2 connector edge contacts This mechanism permits the board to be inserted with minimal force and reduced chances of card material damage A 120 Vac power source is required to power up the test set and the board under test This manu2. Box 8609 904 724 2607 SAN FRANCISCO Suite 2300 Or 6789 OFFICE Jacksonville FL 32211 OFFICE San Bruno CA 94066 ST LOUIS 500 Northwest Plaza 314 291 7400 OFFICE Suite 820 St Ann MO 63074 NEW YORK 40 W 40th St 212 840 5438 OFFICE Room 1105 840 5439 New York NY 10018 CANADIAN OFFICE MONTREAL 1155 Dorchester 514 866 3677 OFFICE Blvd W Suite 1003 Mont PO Can H3B 2J2 REGIONAL OFFICES ATLANTA 404 458 5916 ROANOKE OFFICE 703 989 8400 HUNTINGTON OFFICE 304 736 2629 CHICAGO OFFICE 312 759 3577 OMAHA OFFFICE 402 334 1516 MAIL ALL ORDERS TO ORDER ENTRY DEPARTMENT UNION SWITCH amp SIGNAL DIVISION AMERICAN STANDARD INC SWISSVALE PA 15218
3. set to permit tests of the stored PROM The set can be operated with the PROM absent The test set is equipped with a 3 conductor cord for input of standard 110 Vac power A 110 Vac 5 Vdc power supply converter is mounted internally on a separate bracket and provides operating power for internal components and the board under test 6219 p 1 Y UNION SWITCH amp SIGNAL The test set contains one printed circuit board which serves as the mechanical and electrical mounting for all controls and indicators ZIF connectors Jl and J2 are also mounted on this board A notch in the PCB between the connectors accomodates placement and operation of the draw knob mechanism 1 2 2 Controller Test PCB N451605 1101 The Controller Test PCB inside the TS 301 contains all testing related electronics These include circuits which mimic or loop Micro 700 motherboard signals and signals from external devices all front panel switch and LED circuits and digital components which support the operation of the front panel test PROM Digital components include four 4 bit binary counters one 8 bit register two octal transparent latches a 555 timer and various line buffer and or inverting devices For functional descriptions of the switches and LED s on this board refer to section Il d l 3 SPECIFICATIONS Dimensions Weight Access to internal components Connections Temperature environment Power input Fuse Internal power sup
4. M position 4 Turn test set power back on The PROM check will commence at this time CAUTION DO NOT REMOVE OR INSTALL THE PROM WITH TEST SET POWER TURNED ON OTHERWISE THE PROM MAY BE DAMAGED SECTION IV MAINTENANCE 4 1 GENERAL If any part of the TS 301 is faulty the complete test set should be returned to US amp S for repair or replacement No troubleshooting procedure for the Controller Test PCB is given such a procedure is outside the scope of this manual Extensive disassembly is required to access the PCB The PCB must be removed from the test set to replace individual components additional damage v could occur to the PCB during the removal process US amp S also recommends that no attempt be made to repair or adjust the ZIF connector edge latching mechanism or the 5 volt power supply converter To obtain the proper Returned Material Report RMR form for test set components or the complete set contact the district sales representative or the factory at the appropriate address listed on the back cover of this manual 6219 p 5 UNION SWITCH amp SIGNAL DIVISION HEADQUARTERS American Standard Inc Swissvale PA 15218 412 273 4000 EASTERN OFFICES WESTERN OFFICES ST PAUL 402 McColl Bidg 612 222 7562 OFFICE 5th amp Jackson St Paul MN 55101 PHILADELPHIA 2 Penn Center Plaza 215 568 8032 OFFICE Room 1630 Philadelphia PA 19102 903 Sneath Lane 415 588 6788 JACKSONVILLE P O
5. al only provides general reference information on the TS 301 For the specific operation of the set s controls and indicators during Micro 700 Controller PCB testing refer to service manual 6173 1 2 COMPONENTS 1 2 1 Basic Assembly The TS 301 test set is housed in an assembled steel enclosure with an aluminum front control panel A carrying handle is attached to the top of the unit To the left of the control panel is one set of zero insertion force ZIF PCB edge connectors There are 72 contacts on the connectors in two rows of 36 contacts Some test signals are sent through these contacts A draw knob latching mechanism opens and closes the connectors When the knob is pulled out the opposed contacts close on the PCB and open up when the knob is pushed inward The PCB under test is mechanically supported by plastic guides on upper and lower steel braces Additional test signals are sent through a 50 conductor ribbon cable which attaches to a 50 pin male on the test set control panel This cable interfaces connector J3 microprocessor bus of the Controller PCB A 37 pin male D connector on the front panel allows access to selected Controller PCB circuits for miscellaneous tests The plug attached to this connector contains jumpers which loop some Controller PCB 1 0 circuits A 24 pin ZIF PROM holder on the front panel is used to store the TS 301 test PROM N451575 0314 when not in use This holder is electrically connected to the
6. est of Controller PCB PCB position or PROM installed in front panel PROM position 7 POWER LED Indicates presence of converted 5 Vac power 8 ON OFF SPDT toggle switch for 110 Vac power 6219 p 3 Y UNION SWITCH 8 SIGNAL 1 TS 301 i TEST PROM G OUT STR MSG BREQ ACK 5 N ga S G IN RESET PROM 4 ON pe OFF 7 No L 2 1 Figure 1 TS 301 Control Panel Layout 6219 p 4 a UNION SWITCH amp SIGNAL gt SECTION 111 TEST PROM VALIDATION The test PROM N451575 0314 provided with the TS 301 may be checked prior to installation on the Controller board The check out procedure may also be used for the second test PROM which verifies Controller PCB PROM sockets 1C1 through 1C7 refer to section 4 3 2 4 of SM 6173 steps 16 21 Standard service PROMS removed from the Controller may also be checked with the procedure When the PROM check is executed an 8 bit checksum of PROM data is calculated and displayed on LED s 1 through 7 at a rate of about two times per second The checksum is calculated by adding in binary the contents of each of the 2 048 bit locations in the PROM ignoring carries No Controller PCB need be plugged into the set during the test 1 Turn off test set POWER switch 2 Insert the PROM to be tested in the front panel holder The notch in the IC should be towards the lever end of the holder 3 Move the PCB PROM switch to the PRO
7. ply converter Test EPROM Part No Related Literature 6219 p 2 H 14 W 15 5 D 11 30 lbs 13 6 kg Box disassembly One 3 pin plug w cord power input One 50 pin male connector w ribbon cable One 37 pin male connector w D plug 0 to 500C 110 Vac nominal 60 Hz 1 0 amp 250 volt 3AG type 110 Vac to 5 Vac 3 amps N451575 0314 SM 6173 Micro 700 System a UNION SWITCH amp SIGNAL gt SECTION Il CONTROLS AND INDICATORS See Figure 1 The following tabulation describes the devices on the TS 301 front panel that are used during Controller PCB and PROM testing Item Device Description gt ae LED s 0 7 Monitors Controller PCB data lines DO through D7 2 Toggle Switches 0 7 2 position switches Sets up test data bytes on Controller PCB data lines DO through D7 When switch is in the up u position the corresponding line is ina high logic state 1 3 G OUT STR MSG BREQ ACK LED s Monitor Grant Out Strobe Message Bus Request and Acknowledge lines respectively of the Controller PCB system bus signals l 4 G IN 2 position toggle switch Allows user control of the Grant In line to the Controller PCB When switch is in the up position the corresponding line is in a high logic state 1 5 RESET Momentary action pushbutton Provides general reset of the Controller board no TS 301 reset 6 PCB PROM 2 position toggle switch Configures TS 301 for t
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