TM 11-5821-333-30
2-23. OPERATIONAL CHECK. Continued
ACTION
RESPONSE
Step 21. PANEL ILLUMINATION TEST (RT-1476 OR RT-1476A ONLY)
a. Set AC switch on test adapter to ON.
a. Front panel lights. If not, go to chart
43.
b. Set AC switch on test adapter to OFF.
b. No response.
Step 22. OTHER TESTS
a. Set uut switches:
PRESET
MAN
MODE
SC
b. Set test adapter switches:
S2
9
TEST EQUIPMENT
SELECTOR
DMM
c. Set DMM to read ohms.
d. Set DMM to read dc volts,
e. If uut is not RT-1476 or RT-1476A, go to step
h.
f. Ensure that ref rcu FUNCTION switch is
set to STOW.
g. Check LAMP 1 on test adapter.
h. Set uut FUNCTION switch to SQ OFF.
i.
Set test adapter switches:
CAL
IN
S2
10
TEST EQUIPMENT
SELECTOR
SCOPE
a. No response.
b, No response.
c. DMM reads 1.057 to 1.293 kilohms, If
not, chassis (A11) is bad.
d. No response.
e. No response.
f. No response.
g. LAMP 1 is lit. If not, go to chart 44.
h. No response,
i.
No response.
j.
Set function generator for approximately
j.
No response.
150 Hz,
k. Use scope channel 2 to set function genera-
k. No response.
tor for a 6,75 V square wave.
2-36
