Page 24 - Star Trek The Next Generation

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Use the Service Switch Actuator to hold In the top interlock switch located in the
bottom leN comer of the coin door opening. The actuator must be In place in order to
activate the solenoids and flashlamps.
Press the Up or Down buttons to cycle through the menu. Press the Enter button to access a test. Press
the Escape button to return to the Test Menu. NOTE: During any test, press the Start button to obtain
the wire color, driver number, connector number and fuse location.
T. TEST MENU
T . 1 Switch Edges Test
T.2 Switch Levels Test
T.3 Single Switch Test
T.4 Solenoid Test
T.5 Flasher Test
T .6 General Illumination Test
T . 7 Sound
&
Music Test
T.8 Single Lamps Test
T .9 All Lamps Test
T. 10 Lamp
&
Flasher Test
T. 11 Display Test
T. 12 Flipper Coli Test
T. 13 Ordered Lamps Test
T.1 4 Left Launcher test
T.15 Right Launcher Test
T .16 Left Under Dlvertor Test
T . 17 Right Under Dlvertor Test
T.1 8 Clear Out Balls Test
The switch matrix, on the left side of the display, shows the state of all switches. A dot indicates
the switch is open, a square indicates the switch is closed. The numbers assigned to each switch indicate
where the switch is located in the matrix. The number on the left indicates the column, the number on the
right indicates the row. Example - Switch 23 is 2nd column, 3rd row.
A short to ground - on either the row or column wire - appears as a shorted row(s). However, a
column wire shorted to ground disappears when all of the indicated row switches are open. A row wire
shorted to ground does not disappear.
A shorted diode in the switch matrix can cause other switches to appear closed.
These
"phantom" switches (though not actually closed), complete a rectangle in the switch matrix. Therefore. if
two switches in the same column are closed (example; #22 and #24), and a third switch is pressed in
another column but in the same row as one of the first two (example; #32), the "phantom" switch #34 is
falsely indicated as closed. The switch with the shorted diode is diagonally opposite the "phantom" switch
(in this case #22).
T.1 Switch Edges Test
Press each switch one at a time. The name and number of the
switch is shown in the display. If a switch other then the one pressed. or no switch at all is
indicated, the system has detected a problem with the switch circuit.
T.2 Switch Levels Test
This test automatically cycles through all switches that are
detected closed. The name and number of each switch that is detected is shown in the display. A
filled square indicates the switch's position in the matrix.
T.3 Single Switches Test
The Single Switch Test isolates a particular switch by blocking
signals from all other switches. Use the Up or Down buttons to select the switch to be tested.
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