TB 9-6625-2296-35
NOTE
When performing the following softcal adjustment the fine
adjustment range maybe exceeded. If this occurs the VXCO
will need to be manually adjusted. If adjustment range is <0 or
>4095, set Select Attn field to 2048 then remove the screw on
top of the 10 Mhz Frequency Standard (which is located
towards the top/back of the TI next to the Power Supply) and
adjust the coarse frequency adjustment to 900 Mhz. The
softcal adjustment may now be performed.
Also, before
performing the preceeding adjustment the TI should be
temperature stable for at least 2 hours.
(4) Press key sequence listed in (a) through (h) below:
Gen Menu
(a) SETUP .....................................
Auxiliary Functions Menu
(b) AUX (F6) ..................................
Access Calibration Menu
(c) DATA ENTRY ENTER ..........
(d) FIELD SELECT......................
Select 12. VCXO Calibration
to move cursor to least significant digit
(e) DATA SCROLL arrow............
to adjust for 900 MHz on frequency counter
(f) DATA SCROLL arrow............
to enter new frequency calibration factor
(g) DATA ENTRY ENTER ..........
Return
(h) Ret (F5) ....................................
(5) Press MODE RF GEN key (RF GEN Display), when prompted for backup data
press SHIFT and Y keys (Backup Cal Data ? y/n).
17. Oscilloscope
a. Performance Check
(1) Press key sequence listed in (a) through (f) below:
Meters Menu
(a) MODE MTRS ..........................
Auxiliary Functions Menu
(b) AUX (F6) ..................................
Recall Parameters Menu
(c) MEMORY RCL .......................
(d) FIELD SELECT ⇑ ..................
Highlight 10. Factory Defaults
Factory Defaults recall
(e) DATA ENTRY ENTER ..........
NOTE
Assure highlighted area indicates YES before proceeding.
Factory Defaults restored
(f) DATA ENTRY ENTER ..........
(2) Press key sequence listed in (a) through (k) below:
SCOPE Display
(a) MODE SCOPE/ANLZ ............
30 CHANGE 1
