Tools Required

J 39916-A CD and Cassette Diagnostic Audio Kit

A portion of the J 39916-A may be used for diagnosis of the cassette tape motor speed. This portion of the diagnostic tape may be used in order to verify complaints of abnormal sound from the cassette tape player. Improper tape motor speed may cause audio abnormalities. If the tape motor speed is between 1 minute and 56 seconds, to 2 minutes and 1 second, the tape motor speed is within tolerance.