I.:: Model 241 ARCADE ANALYZER INSTRUCTION MANUAL " PUBLICATION NO. 2490-737 The Hickok Electrical Instrument Company 10!514 DUPONT AVENUE. C LEV ELAND. O HIO 44106 • (a1S} !!>4 1· BOBO • T'NX, 9.
TABLE OF CONTENTS Section HICKOK GENERAL SPECIFICATIONS AND REFERENCE DATA Generator Vari-Traker General LIMITED WARRANTY " III if the registration card is not properly compost marked within ten days after date this instrument of its manufacture workmanship for a of one (12 subject to the tAl"r'r"nt~ IV the first twelve month period after V VI OPERATING INSTRUCTIONS 9 Vari-Traker Instructions Getting the Most Out of Vari,Traker Additional Vari-Traker Applications Generator Operation 10 11 12
GENERAL The Model 241 ARCADE ANALYZER is an instrument designed to efficiently service the down time video games. Monitor and control failures represent encountered with video arcade games. The Model 241 failure elements in a single highly field use yet quite at home on the bench. The instrument The generator portion of the instrument to troubleshoot and align both raster scan and X-Y monitors used with video arcade games. The generator handles both color and black and white monitors.
SECTION I SPECIFICATIONS AND REFERENCE DATA GENERATOR DISPLAY PATTERNS Solid Raster • Single Crosshatch; at of Fine Crosshatch 15 lines vertical (0.25 15 lines horizontal (1 scan line) Bold Crosshatch 8 lines vertical {4 Slines horizontal (16 scan linesl a Single Dot One dot at center of screen x-v MONITORS Single Crosshatch SIZE control Diagonal Crosshatch trol • at center of ~.
OUTPUT SIGNALS EXTENDER CABLE 8 foot, extends output connector venient MONITOR ADAPTERS, MONITOR ADAPTERS Four (4) supplied (see ADAPTERS for connections). FOR RASTER SCAN MONITORS SYNC OUTPUTS o to 5V TTL FREQUENCY WIDTH H Horizontal 15.625 KH H Horizontal Inverted 15.625 KHz V Vertical 61.0 Hz 1.0 msec V Vertical Inverted 61.0 Hz 1.
250V DC or RMS DIMENSIONS 10Mn WEIGHT 2.2 x 6.7 6 /5.6 7 impact, varies from silent with approx· 300n at the terminals to shrill pitch at on. Resistances to OAn are discernible as a tone difference. ACCESSORIES SUPPLIED Soft Four OPEN CIRCUIT VOLTAGE 15V MAX OUTPUT CURRENT 16mA HI varies from silent with approxi· mately 2Mn at the terminals to shrill pitch at 500n. Resistances to 1 Kn are discernible as tone difference. OPEN CIRCUIT VOLTAGE 0.
SECTION II DESCRIPTION OF CONTROLS 1 0 41'44 BRIGHTNESS The X-V SIZE control is used in X-V SCAN MODE only . The co ntrol all ows size adjustment of all patterns when in X-V o peration . Th e two mark s at the operating extremes of the control represent positions in which th e X and V output signal s are calibrated values . The mar k at minimum adjust ment sets t he X and V output signa ls at X=±4V and V=±3V. The mark at maxi mum adju stmen t sets the X and V output signa ls at X =±1OV and V=±7.5V .
SECTION III OPERATING INSTRUCTIONS the center portion of the block PRELIMINARY VARI-TRAKER MODE SELECT pushbutton switch used to select operation or VARI-TRAKER the instrument. When V AR I selected the portion is turned off and vice The capabilities the instrument will not operate simultaneously.
OHMS MEASUREMENTS desin!d using the VARI-TRAKER showing indicates LOn or Hln you have selected VOLTS. the instrument provides 10MS'l input immeasurement as variable audio tone. Obviously measurements cannot be made with this method but for field usually only approximate measurements suffice and other tone more than outweigh its limitations. With a brief learnaccuracy are easily achievable.
troubleshooting of many circuits the probe to the various points and characteristic sounds are there. The human ear is parthe differences in sound which will occur as signals fortunate that the human is particularly sensitive to small and particularly sensitive to harmonics added to a For thes!! reasons the VARI-TRAKER can be an extremely an oscilloscope in many applications.
IMPORTANT instructions for use of patterns in monitors is presented; however, afe interacting and the manufacturers have prescribed an which these Four adapters which mate most of the monitors currently supplied by Electrohome and Wells Gardner provided with the Model 241 Before connecting to the monitor, the manufacturer's input should be the adapter wiring detailed in the ADAPTE R section of this It none of the match both connector type and pin-out of then the operator must make an Several extra connector
SECTION V x-v MONITOR SERVICING GENERAL The Model 241 X-Y Scan outputs provide separate X and Y which are adjustable from X=±4 volts, Y=±3 volts to X=±10 volts, Y~±7.5 volts using the X-V SIZE control. At the control extremes are calibration marks. When the control is set to these marks, the X and Y calibrated voltages. See SPECIFICATIONS for details.
scan monitors and the recommended patterns associated PURITY, STATIC CONVERGENCE, DYNAMIC CON1<1',,,,,,nt. are common to Raster Scan table lists some of the monitor adjustments for which the patterns are used. PATTERNS Single Crossbar and Crosshatch (Bold and Fine) cushion effect, focus Static convergence 4. Single Crossbar, Single Dot convergence Fine Crosshatch Pin cushion distortion is most common on screen monitors.
HEIGHT, WIDTH, LINEARITY for monitors will vary from monitor to monitor often even with monitors from the same manufacturer. It is advisable always to use the manufacturer's Service Instructions when performing adjustments to monitors. Presented here is a review of adjustments normally on monitors and the recommended patterns associated with each. PURITY, STATIC CONVE DYNAMIC CONVERGENCE and Ich,.,,,,,n'i'c are common to Raster Scan and X-Y monitors and are presented separately.
To find the arithmetic. Mfr spec'd sens. ("B" above) y Using the monitor Y size adjust the "Y" line on the the "Y determined above. E) Set the Model 241 to SECTION VI "Y" size of the pattern fill in the blanks (:;:;:3 (Diagonal Crosshatch I and note that the pattern square on the screen and that its overall size is the same "X" and "Y" from C) and D) above. of an X-Y monitor, the Model 241 has This pattern is a calibrated brightness by the BRIGHTNESS control.
SECTION VII entire three gun structure with respect to screen in the color picture tube. each of the beams to strike its respective ADAPTERS SUPPLIED ADAPTERS made with only one gun in operation, while the biased cut-off. In this way we can determine if the the proper phosphor dots to produce a pure color the red beam. Impurities are more readily observed blue or green screens. A portion of the red green will illuminate them and conIf th is condition occurs, color impurity results.
ADAPTER D ADAPTER B For use with color KY monitors. color X-Y monitors. Game/Monitor Connectors: Amp "Mate and Lock" 15 pins Molex ~PIN OF MOLEX CONNECTOR WELLS GARDNER SCHEMATIC NUMBERING PIN OF CONNECTOR SIGNAL SIGNAL Red Gun Green Gun Blue Gun Ground N.C. N.C. Horizontal (X) Vertical (Y) N.C. N.C. N.C. N.C.
SECTION VIII MAKING YOUR OWN ADAPTERS The adapters p ro vid ed with the Model 241 cover most of the monitors in service in arcade games today . If , however, it is necessary to service a game co nta ining a monitor o ther t han one of t hose compatible with the supplied adapt e rs, it is not difficul t to make your own adapter . The Model 241 is su pp lied with 2 extra connecto rs compatible with the output plug on the instrument and extender cable .
SECTION IX MAINTENANCE AND CALIBRATION "ORK CHART Your Model 241 ARCADE ANALYZER has been constructed the components and that the electronic has to offer It has been designed for long reliable service as indicated (1 warranty. MANUFACTURER AND PART NUMBER Should difficulty be encountered with your instrument, The Hickok Electrical Instrument Co. maintains complete facilities for reliable and service of our products. A troubleshooting procedure is not in this manual.
SECTION X set AC volts monitor from Pin 3 (GND) Pin 4 (Xl 3. 4. 2.22:l:0.0lV AC. (R336) 5. Monitor from Pin 3 y 6. of the OUTPUT connector to Pin 1 IY). (R230) for 1.65±O.OlV AC. 7. Set the X·Y SIZE control to the maximum CAL position. 8. Again PARTS LIST When parts be sure to the Hickok part number indicated in the DESCRIPTION models. Also include the model mum billing is $50.00. Orders prepaid if ''''t'ornn.::''>1 postage and handling. from Pin 3 to Pin 4. cal (R229) for 5.55±0.OlV AC. 9.
REF. DESIG. N HICKOK PART No. DESCRIPTION REF. DESIG. CR106 RVICE PARTS CAPACITOR, FIXED, ALUMINUM ELECTRO· LYTIC 100 /.
HICKOK PART NO. REF. DESIG.
REF. OESIG. S103 S104 theu S107 S111 S201 n01 Ul01 U102 U103 U104 U105 U106 Ul07 Ul08 U109 U110 U111 U112 U113 U114 U115 U116 7 U201 U202 Yl01 NOTES HICKOK PART NO. DESCRIPTION SWITCH. pushbutton, 6 S103 · S103 SWITCH 4p 3t ... TRANSFORMER. power, 115VAC ·.
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