NOTE: When testing the power transistor(s), an analog-type
circuit tester should be used.
- Connect the negative terminal of a 1.5V power source to terminal 5 of
the power transistor connector.
| Fig. 1: Testing the power transistor
|
- Check whether there is continuity between terminal 5 and
terminal 8 when terminal 6 and the positive
terminal are connected and disconnected.
NOTE: Connect the negative probe of the tester to terminal
8 of the power transistor connector.
- With terminal 6 and the positive terminal connected, there
should be continuity between terminal 5 and terminal 8 of
the connector.
- With terminal 6 and the positive terminal disconnected,
there should be no continuity between terminal 5 and terminal 8 of
the connector.
- If the results of the test are not as specified above, replace the power
transistor.
