CALIBRATION (April 2005): CALIBRATION OF VERY OLD FIRST UNBALANCED VERSION LANGEVIN ELOP LIMITER
PURPOSE: To calibrate the ancient first version ELOPs that we haven't built since 1994.
METHOD: To relate the old board layout to the current Owner's Manual.
UNITS AFFECTED: Serial numbers for units that will benefit from this update are
LOPTO001 (7/1993) through LOPTO021 (2/1994).
FOLLOW CALIBRATION PROCEDURE ON PAGE 11 OF THE CURRENT OWNER'S MANUAL
Which can be found online here:
Langevin ELOP Stereo Electro-Optical Limiter - Owner's Manual
REFER TO THE TRIMPOT LOCATIONS AS BELOW
Trimmer "1" adjusts the Power Rail Voltage
Trimmer "2&3" is the Preamp GAIN adjust
Trimmer "6&7" is the Meter Zero Cal
Trimmer "8&9" is the Gain Reduction meter Cal
The other trimpot adjusters referred to in the manual do not exist in this version of Langevin ELOP.
For further info, please contact our Service Department.
If you would like to send your unit in and have Paul perform this calibration for you, please contact him by filling in the SERVICE FORM or at the address below: