PROCEDUREv2.10
U P /R
       ***** B-CHANNEL AND PHASEMETER ADJUSTMENT PROCEDURE *****/R/R
          Copyright (C) 1988, 1991, 1992 Audio Precision Inc./R/R/R/R/R
THE PHA BOARD IS LOCATED IN THE UPPER RIGHT COMPARTMENT, MOUNTED TO THE/R
ANALYZER (LVF) MODULE.  NO TEST EQUIPMENT IS REQUIRED FOR THIS PROCEDURE./R
/R/R
-------------------------------------------------------------------------/R
| NOTE:  There have been two versions of this board (PHA-1 and PHA-2).  |/R
|        This procedure is valid for both versions.                     |/R 
-------------------------------------------------------------------------/R
/R/R/R/R/R
PRESS <Enter> TO CONTINUE, <F1> TO ABORT.../E
L T CHB-ATTN/R
U D .5/R
/F4/E
P GF 20k/R/E
/F2 /R/R/R/R/R/R/R
ADJUST C0401 (B-ATTEN) FOR 0.00 dBr, +\-0.01 dB.../R/R/R
          -----------------------------------/R
          |                O      O <--C0401/R
          |/R
          |/R
          |/R
          |/R
          |/R
          |/R
          |           O       PHA-1 or PHA-2/R
          -----------------------------------/E
L T CHB-CMRR-B/R
/F2 /R/R/R/R/R/R/R
ADJUST R0301 (B-CMRR) FOR MINIMUM READING BELOW -70 dBr.../R/R/R
          -----------------------------------/R
          |       R0301--> O      O/R
          |/R
          |/R
          |/R
          |/R
          |/R
          |/R
          |           O       PHA-1 or PHA-2/R
          -----------------------------------/E
L T PHAMETER/R
U D .5/R
/F2 /R/R/R/R/R/R/R
ADJUST R9201 (PHASE CAL) FOR 0.0 DEG +\-0.3 DEG.../R/R/R
          -----------------------------------/R
          |                O      O/R
          |/R
          |/R
          |/R
          |/R
          |/R
          |/R
          |  R9201--> O       PHA-1 or PHA-2/R
          -----------------------------------/E
/F1/E
U P /R/R/R
PHA BOARD CALIBRATED./E
U END