TM 11-6625-291-14/TO 33A1-7-23-1
6-22. TESTING OF METER MULTIPLIER CIRCUIT.
This task covers:
Testing
INITIAL SETUP
Equipment Condition
Tools
Output meter on workbench
TooI Kit, Electronic Equipment
TK-105/G
Test Equipment
Materials/Parts
Capacitance-Inductance-
None
Resistance Test Set
AN/URM-90
Personnel Required
Decade Resistor TS-679/U
One technician
ACTION
REMARKS
ITEM
LOCATION
NOTE
See paragraph 6-7 for removal of chassis from case.
TESTING
Soldering iron is hot. Severe burns to personnel can result
from improper handling.
OUT terminal lead (1)
1. Terminal board AT1
Connect decade resistor leads at OUT and C
Decade resistor (2)
2.
terminals. Set decade resistor to 5,000 ohms.
Connect test set leads at OUT and C terminals.
Test set (3)
3.
Set meter multiplier knob to each setting and
Meter multiplier
4.
observe test set readings.
knob (4)
Each test set reading must show range
from 4,940 to 5,050 ohms. If test set
does not show reading range, see para-
graph 6-11 to test radial resistors.
if each resistor is good, replace rotary
switch. See paragraph 6-23 for replace-
ment procedure.
6-38
