GSi TYMPSTAR 1, Service Manual

Page: 184 / 224

Chapter 7
39. The TYMP hardkey is now simulated to start the system on the TYMP test
screen. This complete the power-up and enter the TYMP test mode (handled
in tymp_sk()).
40. Control is passed to the tymp test routines. T he remaining power up
sequences are completed.
41. Altitude information is read from the probe SEREE. Calculates site altitude oc-
clusion and probe in ear limits are calculated.
42. Initialize current RTL values from either GSI default RTL or USER selected
values. If error reading RTL values, GSI defaults are loaded.
43. The unit we reads the CAL/DIAG/NORMAL run switch and determine s the
mode -normal mode, calibration mode or diagnostics mode and for the
latter two, the appropriate sequence is applied to enter into cal/diag.
44. The SP to calculates the CK numbers necessary to perform tests, etc.
This takes the SP about 12 seconds.
45. The LCD/CRT is cleared of text/logos.
46. The Green LED on the probe is started in a blinking pattern.
47. Now the Tymp template screen is drawn, the menu is drawn and enabled, key-
board is enabled and the system should be idle in the Tymp test mode. Soft and
Hard Keys are now active – user can navigate and run tests.
Grason-Stadler
Tymp_sk()
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