December, 2008


READ ME: AUDIO PRECISION SYSTEM ONE SERVICE MANUAL

The Audio Precision ?System One? product family has been out of production 
since 2002, and is now considered obsolete.  Adjustment and repair services, 
along with replacement parts and/or modules are no longer available from Audio 
Precision without a prior written agreement.  

As a courtesy to those who desire to continue supporting these classic products, 
Audio Precision hereby provides a free PDF copy of the last known revision to 
the service manual and its related technical information.   This information is 
provided as-is, and without warranty of any kind.  Persons attempting to service, 
repair, or adjust a System One product do so at their own risk.     

Audio Precision additionally notes that the common industry usage of the terms 
?calibrate? and ?calibration? as they appear in this manual have significantly 
changed since the manual was first published in 1985.  The usage of these 
words is NOT consistent with current ISO (International Standards Organization) 
definitions.  As used in this service manual, ?calibrate? and ?calibration? refer to 
adjustment to factory specification.  They do not refer to the more formal process 
of calibration as it exists today.