TB 9-6625-2295-24
Select 10 Hz (2 pushbutton) and press.
x
NOTE
After the 50 ms and 100 ms checks are made, return
MINFREQ to 50 Hz.
b. Adjustments
(1) Press POWER pushbutton to OFF, remove protective cover, and move CAL
NO/CAL jumper to the CAL position.
(2) Press POWER pushbutton to ON and allow 20 minutes warm-up.
(3) Simultaneously press and hold 't and 'V pushbuttons; then press and hold
TRIGGER SLOPE pushbutton. Hold in all three pushbuttons for approximately 1 second
and then release. Top of display will indicate: DIAGNSTIC.PUSH A/B TRIG TO EXIT.
(4) Proceed to Section IV, paragraph 23, below.
14. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
MENU CALIBRATION PROCESS
15. Preliminary Instructions
a. The procedures in paragraphs 17 through 24 should be performed only if an out-of-
tolerance condition exists in paragraphs 8 through 14 or if an error message on the bottom
line of the CRT display is:
TEST 04 XX
Where XX is 01, 02, 10, or 11 when POWER pushbutton is pressed to ON.
b. When performing paragraphs 19 through 24, touch only the specific control or
controls called out in the procedure. Movement of any other control may cause erroneous
calibration results.
c. Within the automatic calibration procedure, the calibration constants for timing,
vertical gain, and trigger level are generated by the system microprocessor and stored in
nonvolatile memory. The adjustments in CAL 01, 02 and 03 should be done in
numerical sequence.
d. When performing automatic CAL steps, initial setting of front-panel controls is
not required.