Ignition Power Transistor

NOTE: An analog-type circuit tester should be used.

No.1 - No.4 coil side







1. Connect the negative (-) terminal of the 1.5 V power supply to terminal 4. of the ignition power transistor, and then check whether there is continuity between terminal 13. and terminal 4. when terminal 3. and the positive (+) terminal are connected and disconnected.

NOTE: Connect the (-) probe of the circuit tester to terminal (13).

2. Replace the ignition power transistor if there is a malfunction.

No.2 - No.5 coil side







1. Connect the negative (-) terminal of the 1.5 V power supply to terminal 4. of the ignition power transistor, and then check whether there is continuity between terminal 12. and terminal 4. when terminal 2. and the positive (+) terminal are connected and disconnected.

NOTE: Connect the (-) probe of the circuit tester to terminal (12).

2. Replace the ignition power transistor if there is a malfunction.

No.3 - No.6 coil side







1. Connect the negative (-) terminal of the 1.5 V power supply to terminal 4. of the ignition power transistor, and then check whether there is continuity between terminal 11. and terminal 4. when terminal 1. and the positive (+) terminal are connected and disconnected.

NOTE: Connect the (-) probe of the circuit tester to terminal (11).

2. Replace the ignition power transistor if there is a malfunction.