TM 11-5820-890-30-4
6-13. OPERATIONAL CHECK. Continued
Step 3. CONTROL FUNCTION CHECK.
Action
a. Set FCTN: RF.
b. Set FCTN: MODE.
c. Set FCTN: VAR.
d. Set FCTN: CONTROL.
e. Set INIT to UP, then release.
f. Set INIT to DN, then release.
g. Set RESPONSE: 7.
Read scope CHAN: A when INIT is set to
DN and then released.
T: 10 ms/DIV
V: 5 V/DIV
h. Set 28V: OFF
LOGIC: 3
28V: ON.
i.
Set 28V: OFF
LOGIC: 4.
Jumper TP4 to TP5.
Response
a. CONTROL S lit, all others blank.
IF
THEN
CONTROL M lit with all
Go to chart 5.
others blank.
Any other display is
Go to chart 6.
seen.
b.
c.
d.
e.
f.
g.
h.
i.
CONTROL S lit, all others blank. If not, go
to chart 7.
CONTROL S lit, all others blank. If not, go
to chart 7.
CONTROL S lit, all others blank. If not, go
to chart 8.
“Er” displayed while INIT is UP. If not, go
to chart 9.
CONTROL M lit briefly, “Fr” displayed for
2.5 seconds, then CONTROL S lit. If not,
go to chart 10.
If “Er” is displayed, go to chart 8.
Scope CHAN: A displays digital data
pattern for about 0.9 seconds, then logic
“ 1 ”. If not, go to chart 11.
Control-monitor runs one test cycle, then
CONTROL M lit, all others blank. If not, go
to chart 12, node
Control-monitor runs one test cycle, then
CONTROL M lit, all others blank. If not, go
to chart 12.
6-14
