TM 11-6625-291-14/TO 33A1-7-23-1
6-21. TESTING OF IMPEDANCE NETWORK.
This task covers:
Testing
INITIAL SETUP
Equipment Condition
Tools
Tool Kit, Electronic Equipment
Output meter on workbench
TK-105/G
Test Equipment
Materials/Parts
Capacitance-Inductance-
None
Resistance Test Set
AN/URM-90
Personnel Required
One technician
ACTION
REMARKS
ITEM
LOCATION
TESTING
NOTE
See paragraph 6-7 for removal of chassis from case.
Set to X100 X200 position (20,000 ohms).
1. Chassis, front
Control knob (1)
Wiper arms (2)
2. Impedance network
Carefully lift each wiper arm, place a
piece of paper or other insulating
material under wiper arms.
Connect.
Test set (3)
3. Binding posts
Read test set.
4.
Test set (3)
If test set does not show reading range
of following table, impedance network is
bad. Refer to higher level of maintenance.
Test Set Reading Range (ohms)
Output Meter
TS-585A/U
44,708 to 45,011
TS-585B/U
43,510 to 44,389
TS-585C/U
166,466 to 169,829
TS-585D/U
177,525 to 191,314
6-36
