TB 9-6625-2296-24
(5) Set calibrator frequency to 2400 Hz and amplitude for multimeter indication
recorded in (4) above. Press calibrator NEW REF key.
(6) Set audio analyzer source level to 1 V and press calibrator 10 key one time. If
TI distortion meter does not indicate between 9.4 and 10.6 percent, perform b below.
(7) Set calibrator frequency to 3010 Hz and press calibrator 10 key one time. TI
distortion meter will indicate between 0.4 and 1.6 percent.
(8) Set calibrator frequency to 6030 Hz and press calibrator X10 key twice. Use
calibrator amplitude output adjustment controls to set calibrator control display Error to
+82.42%. TI distortion meter will indicate between 15.7 and 19.9 percent.
b. Adjustments
(1) Press key sequence listed in (a) through (d) below:
(a) SETUP .....................................
Distortion Meter Menu
(b) AUX (F6) ..................................
Auxiliary Functions Menu
(c) DATA ENTRY 1 ......................
(d) DATA ENTRY 5 ......................
Distortion Meter
(2) Press DATA ENTRY ENTER key to highlight Proper Reading field. Enter
10 using DATA ENTRY keys and press DATA ENTRY ENTER key. Press Ret (F5) key.
(3) Press MODE MTRS (Meter Menu) key; when prompted for backup data, press
SHIFT and Y keys (Backup Cal Data ? y/n).
11. SINAD Meter
a. Performance Check
(1) Connect equipment as shown in figure 4. Set audio analyzer source level to
minimum, multimeter to measure volts ac, and press calibrator WIDEBAND key on.
(2) Press key sequence listed in (a) through (f) below:
(a) MODE MTRS ..........................
Meters Menu
(b) AUX (F6) ..................................
Auxiliary Functions Menu
(c) MEMORY RCL .......................
Recall Parameters Menu
(d) FIELD SELECT ..................
Highlight 10. Factory Defaults
(e) DATA ENTRY ENTER ..........
Factory Defaults recall
NOTE
Assure highlighted area indicates YES before proceeding.
(f) DATA ENTRY ENTER ..........
Factory Defaults restored
(3) Press key sequence listed in (a) through (i) below:
(a) MODE MTRS ..........................
Meter Menu