PROCEDUREv2.10
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       ***** WOW AND FLUTTER ANALYZER ADJUSTMENT PROCEDURE *****/R/R
          Copyright (C) 1988, 1991, 1992 Audio Precision Inc./R/R/R/R/R/R
THE W&F-1 ANALYZER BOARD IS LOCATED IN THE UPPER RIGHT COMPARTMENT,/R
MOUNTED TO THE LVF MODULE.  A GENERAL PURPOSE DC VOLTMETER IS REQUIRED/R
FOR THIS PROCEDURE./R/R
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PRESS <Enter> TO CONTINUE, <F1> TO ABORT.../E
L T WFCAL/R
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CONNECT A DC VOLTMETER BETWEEN TP8503 AND CHASSIS GROUND./R
ADJUST R5701 (RECT BAL) FOR THE MOST NEGATIVE VOLTMETER READING.../R/R/R/R
                          |         ---------------------------/R
----                      |         |                  W&F-1  |/R
   |          R5701--> O  |         |                Front--> |/R
   |                      |         |                         |/R
   |                   O  |         ---------------           |/R
   |                      |                       |        O  |/R
   |                   O  |                       |        O  |/R
   |   + <--TP8503        |                       |        O  |/R
   |                   O  |                       |        O  |/R
   ------------------------                       -------------/E
U D 3/R
/F2 /R/R/R/R/R/R/R
ALLOW SEVERAL SECONDS FOR READING TO STABILIZE./R
ADJUST R6701 (NAB OFFSET) FOR A READING OF 0.0002%, +\-0.0001%.../R/R
                                 |/R
       ----                      |/R
          |                   O  |/R
          |                      |/R
          |          R6701--> O  |/R
          |                      |/R
          |                   O  |/R
          |                      |/R
          |                   O  |/R
          ------------------------/E
P LD++/R/E
U D 3/R
/F2 /R/R/R/R/R/R/R
ALLOW SEVERAL SECONDS FOR READING TO STABILIZE./R
ADJUST R8605 (IEC OFFSET) FOR A READING OF 0.0002%, +\-0.0001%.../R/R
                                 |/R
       ----                      |/R
          |                   O  |/R
          |                      |/R
          |                   O  |/R
          |                      |/R
          |                   O  |/R
          |                      |/R
          |          R8605--> O  |/R
          ------------------------/E
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THE NEXT STEP OF THIS PROCEDURE EXECUTES A SPECIAL PROGRAM THAT RAPIDLY/R
ALTERNATES THE GENERATOR FREQUENCY BETWEEN TWO MEASURED VALUES NEAR 3 kHz./R
THE RESULTING SIGNAL CONTAINS AN ACCURATELY KNOWN AMOUNT OF SQUAREWAVE/R
FREQUENCY MODULATION.  READINGS ARE MULTIPLIED BY A CORRECTION FACTOR TO/R
DISPLAY THE EQUIVALENT PEAK SINEWAVE CALIBRATION./R/R
IF A READING DOES NOT APPEAR AFTER APPROXIMATELY 5 SECONDS, AN INSUFFICIENT/R
AMOUNT OF HOST COMPUTER MEMORY IS AVAILABLE FOR DOS ACTIVITIES (80K IS MIN)./R
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PUSH <Enter> TO CONTINUE, <F1> TO ABORT.../E
D WFTST2.EXE/R
/F1/E
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W&F-1 ANALYZER BOARD CALIBRATED./E
U END