TB 55-4920-428-35
NOTE
For SAS1 or SAS2 SELF and CROSS BITE checks, the FEEDBACK SELECT switch for the system
must be set to the opposite function.
(41 ) Set digital multimeter RANGE switches to 20 vac.
(42) Position TI controls (a) thru (f) as follows:
(a) SYSTEM SELECT to BITE.
(b) EXTERNAL METER SELECT SAS1 to SELF FDBK.
(c) BITE to SAS1 SELF.
(d) POWER to ON.
(e) PRESS TI SAS1 FEEDBACK SELECT to CROSS.
(f) FUNCTION SELECT to CLSD LOOP.
(43) Digital multimeter will indicate between .8 and 1.0 vac. Observe TI DVM for an indication between .8 and 1.0.
(44) Set TI POWER to OFF.
(45) Position TI controls (a) thru (e) as follows:
(a) SYSTEM SELECT to BITE.
(b) EXTERNAL METER SELECT SAS1 to CROSS FDBK.
(c) BITE to SAS1 CROSS.
(d) POWER to ON.
(e) PRESS TX SAS1 FEEDBACK SELECT to SELF.
(46) Digital multimeter will indicate between .8 and 1.0 vac. Observe TI DVM for an indication between .8 and 1.0.
(47) Set TI POWER to OFF.
(48) Disconnect digital multimeter leads from TI EXTERNAL METER JACKS SAS1 and connect to EXTERNAL
METER JACKS SAS2.
(49) Position TI controls (a) thru (f) as follows:
(a) SYSTEM SELECT to BITE.
(b EXTERNAL METER SELECT SAS2 to SELF FDBK.
(c) BITE to SAS2 SELF.
(d) POWER to ON.
Change
2
17
