Speaker/Grill Rattle Test (50 Hz to 8 kHz Swept Sine)

The next portion of the tape diagnoses rattles in the following components:
^ The speaker
^ The grille

The first test is 2 tones played back-to-back. The second test is a variable frequency tone, but frequency change is at a much slower rate. Both tests can be used in order to repair the following conditions:
^ A speaker rattle
^ A speaker buzz

If the condition has already been identified, complete the following steps:
^ Set the following controls to the proper location:
- FADE
- BALANCE
^ Play the test tones in the specific problem area.