COIL TESTS
Data
East Pinball uses 22 transistors that when energized will apply ground to an associated coil or
flash lamp device. Circuits 1 through 8 are split through the left/right diode board allowing each
circuit to control 2 devices which have isolated power sources that are switched by a relay. (Refer
to Playfield Coil Wiring Diagram). Refer to Coil Chart for coil title and driver transistor
assignments and the Playfield Coil Location Illustration for locations.
There are 2 coil tests used to check operation of circuits 1 through 16. The first coil test will
automatically cycle through the circuits and the select coil test allows 1 circuit to pulse
continually.
Pop bumpers and slingshots are controlled by switched coil circuits 1 through 6. These circuits
may be tested by activating their associated switches.
COIL TEST AUTOMATIC
Use the STEP button to advance through the previous tests. Players 1 and 2 will display and
then the title of coil number 1 shown in the Coil Chart. The ball in play display will show the
associated number and coil number 1 will momentarily energize. The displays will cycle,
energizing each associated coil allowing you to verify each circuit is operating.
SELECT COIL TEST
Use the STEP button to advance through the previous tests. Players 1 and 2 will display
and then the title of coil number 1. Use the Game START Button to select the circuit to be tested
and press the STEP button to cause that circuit to continually pulse that circuit.
COIL l.D. C
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