GSi TYMPSTAR 1, Service Manual

Page: 124 / 224

Chapter 4
Version 2 Calibration Procedures
WARNING
Some calibration tasks will be performed while the instrument enclosure is
open and power is applied. Do not touch wiring, circuitry or electrical com-
ponents! Voltages are present within the instrument enclosure that can cause
personal injury or death!
Remove the three retaining screws that
secure the cover to the bottom chas-
sis.
Lift the cover and lock the cover sup-
port struts in place.
Self-Calibration stores new probe tone frequency data
in the TympStar and must be performed if circuit boards
contained within the instrument (digital board and analog board) are repaired. Self-
Calibration is not required if only the probe is repaired or replaced.
Step 1
Operate positions 1, 2, 3, 4, 5 and 6 of
the DIP switch on the digital board to
OFF, and positions 7 and 8 to ON.
NOTE
Refer to page 4-32 to calibrate
custom transducers.
Step 2
Operate the Cal/Normal switch on the
upper left of the digital board to the
CAL (down) position.
Step 3
Lower and close the cover.
Grason-Stadler
NORMAL
Mode
CAL
Mode
Self-Cal
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