TM 11-5840-208-30-1
Section II OVERALL CHECKS
GENERAL INSTRUCTIONS FOR OVERALL CHECKS
Make the following checks in sequence. When a malfunctioning check is found turn to the paragraph listed to the right,
and continue the checks in that paragraph.
3-3. INDICATOR LOW VOLTAGE POWER SUPPLY AND METER PANEL CHECK
CHECK
PARA
PAGE
a.
Power unit indicator
3-10
32
b.
Main power ON and INTLK closed indicator
3-11
32
c.
M-652, cabinet interlocks
(1)
+27VDC (2. 7)
3-11
32
Check blowers (intake and exhaust) RCVR-XMTR
and control-indicator
3-10
32
3-11
(2)
-220VDC (4. 4)
3-12
32
(3)
+ZZOVDC (4. 4)
3-13
33
(4)
+440VDC (4.4)
3-14
33
(5)
AFC XTAL CUR (2. 5) If this check is BAD, advance to
paragraph 3-5
3-4. ANTENNA POSITIONING SYSTEM
a.
Elevation, operate to both limits (-100 to +200)
3-20
40
b.
Azimuth, operate in both positions (CW, CCW)
3-21
40
3-5. RECEIVER-TRANSMITTER LOW VOLTAGE POWER SUPPLIES
a.
M-1402, cabinet interlocks
(1)
-300VDC (3. 0)
3-15
33
(2)
+300VDC (3. 0)
3-16
34
(3)
+150VDC (3. 0)
3-17
34
(4)
IF Crystal #1 (2. 5)
3-18, 3-32
38, 46
(5)
IF Crystal #2 (2. 5)
3-18, 3-32
38, 46
(6)
AFC Crystal (2. 5)
3-18, 3-32
38, 46
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