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Page Title:
Figure FO-2. Receiver Control Test Flow Chart ( Sheet 4 of 12) |
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 TM 11-5865-215-13
PRESS START KEY.
2. OBSERVE THE FRONT PANEL:
1. AT THE RECEIVER CONTROL
PRESSF1 KEY.
a. START KEY LIGHTS, HOLD GOES OUT.
(MHZ) DISPLAY
b. TUNING RR
2. OBSERVE THAT TUNING FREQUENCY
B
SWEEPS UP FROM
(MHZ) DISPLAY SHOWS PREVIOUSLY
MHZ TO
STORED DATA.
F2 MHZ
NO
ENTER
WITH OSCILLOSCOPE
PRESS AND HOLD
WITH OSCILLOSCOPE
CHECK FOR A 2.9 kHz
YES
REMOVE &
NO
START KEY WHILE
CHECK AI-18 FOR
CLOCK SIGNAL AT A3-71
REPLACE CCA
CHECKING A3-59
LOW PULSE ACTIVITY
AND A 23 kHz CLOCK
I
A7
CCA Al
WITH OSCILLOSCOPE
SIGNAL AT
YES
PRESS AND HOLD
REPLACE
REMOVE &
NO
NO
F1 WHILE CHECKING
START KEY
REPLACE CCA A7
Al-83 FOR LOW
(s35)
PULSE ACTIVITY
YES
REPLACE
I
I
REMOVE &
REMOVE &
KEY
REPLACE CCA
REPLACE
(s31)
CCA
CCA A7
CCA Al
1
1. VARY THE SWEEP/STEP
CONTROL CCW AND CW.
YES
2. OBSERVE A CORRESPONDING
PRESS
RATE CHANGES
AND
DECREASE
HOLD
INCREASE
OF THE
FREQUENCY SWEEP RATE .
WITH MU LTIMETER, MEASURE
VOLTAGE BETWEEN
REMOVE
AND A3
YES
REPLACE CCA A3
2. OBSERVE
READS
FROM OV (WHEN SWEEP/STEP
CCA Al
TO
(WHEN
IS FULLY
SWEEP/STEP IS FULLY
I
REPLACE
SWEEP/STEP
POTENTIOMETER
EL3RJ032
FO-2. Receiver Control
Test Flow Chart (Sheet 4 of 12)
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