TB 9-6625-2210-24
(3) SWEEP to OFF.
(4) LO FREQ (Band g (4) below must be VOICE) to 20 Hz.
(5) HI FREQ to 200 Hz.
(6) FREQ INCR to 10 Hz.
(7) Y-LO to -01.0.
(8) Y-HI to +01.0.
(9) LIMITS to C4.
(10) PLOT to OFF.
f. Press Pg Dn key and set parameters as listed in (1) through (4) below:
(1) TRANSMIT LEVEL to 00.0 dBm.
(2) TRANSMIT FREQ to 1000 Hz.
(3) 60 Hz FILTER to OUT.
(4) BAND to VOICE.
g. Allow 5 minutes for warm-up before beginning test.
8. DSP Board
a. Performance Check
(1) Remove disk drive cover by removing two screws, top half of cover, turning lever
to vertical, and pulling remainder of cover directly forward.
(2) Insert calibration disk into slot with label to left and return lever to horizontal position.
(3) Press the following keys:
(a)
HOME.
(b)
HOME.
(c)
F10.
(d)
A.
(e)
:.
(f)
RETURN.
(4) Use type 310 phone plug and cable to connect XMT 2W/4W connector to multimeter.
(5) Type DSPCAL, press RETURN key, and follow instructions as printed on TI
screen.
NOTE
EEPROM is write enabled by changing the settings of switch 1
(S1) and switch 2 (S2) (fig. 1). This is performed in the
following manner:
1. Set S2 (nearest rear) to ON (up).
2. Set S1 (nearest front) to OFF (down).