ZANEN ELECTRONICS 5023 52nd Street Lubbock, Texas 79414 806-793-6337 Fax: 806-793-9136 Kit # 206 Installation Instructions This monitor repair kit is designed for the Wells-Gardner 19K6100 X-Y color monitor. Be sure to check that all the parts are included in the kit: 1 22 uF @ 50V 1 25K Potentiometer 1 47 uF @ 50V 2 1N4148 Diode 2 100 uF @ 50V 2 1N4750 27V Diode 1 10 uF @ 350V 1 Z150B 150V Diode 1 33 uF @ 160V 3 MPSA06 Transistor 1 33 uF @ 250V 1 MPSA56 Transistor 2 2.2 ohm @ 2 Watt 1 2N3904 Transistor 2 15 ohm @1/2 Watt 3 2N3716 Transistor 2 330 ohm @ 1l4 Watt 3 2N3792 Transistor Be sure to install all the parts on the monitor even though many of the original parts seem to be working fine. Age, humidty, and temperature will cause the value of electrolytic capacitors to change. Each capacitor is polarized and can only be inserted in one direction. Watch the polarity markings on each capacitor. On the top side of the monitor board where each capacitor is located is a circle with a plus sign next to one of the holes. The plus sign indicates where the positive (+) lead of each capacitor is to be inserted. It is possible for a failure on the game logic board to cause the monitor to fail. There is a simple test to find out if the game board caused the monitor to fail. To perform the test you will need a voltmeter. Set the voltmeter on the DC voltage scale and measure the voltage on the lead of R600 and R700 which is connected to the yellow and orange respectively. The correct voltage should be around zero volts DC but fluctuate because of the changing deflection signal. If the measured voltage is between 5 and 15 volts positive or negative DC then check the X and Y amplifiers on the game board. Also check for broken potentiometers on the logic board. It is very important to resolder all connectors soldered to the circuit boards. Loose connections commonly develope because plugs are removed and plugged back. The following parts are both on the deflection and high voltage boards. Unplug the game and replace the following parts. C901 100 uF @ 50V ZD100 1N4750 27V Diode C902 100 uF @ 50V ZD101 1N4750 27V Diode C905 33 uF @ 160V ZD902 Z150B 150V Diode C909 22 uF @ 50V Q100 MPSA06 Transistor C910 10 uF @ 350V Q101 MPSA56 Transistor C914 47 uF @ 50V Q102 2N3716 Transistor R100 15 ohm @ 1/2 Watt Q103 2N3792 Transistor R101 15 ohm @ 1/2 Watt Q605 2N3716 Transistor R102 330 ohm @ 1/4 Watt Q606 2N3792 Transistor R103 330 ohm @ 1/4 Watt Q705 2N3716 Transistor R901 2.2 ohm @ 2 Watt Q706 2N3792 Transistor R907 2.2 ohm @ 2 Watt Q901 MPSA06 Transistor R918 25K Potentiometer. Q902 MPSAG6 Transistor D104 1N4148 Diode Q903 2N3904 Transistor D105 1N4148 Diode C503 33 uF @ 250V If you have any problems feel free to call for help. ===============================================================================