MAINTENANCE MANUAL
IFR 4000
2-2-1
Page 15
Aug 1/04
SINGLE STEP
LO PLL CONTROL
-
+
107 TO 118 MHz
LOC OSC
LOC PLL CONTROL
INTERNAL
-
+
AM DET
DETECTOR
LEVELING
A/D
-
+
LOC AM MOD
LEVEL CONTROL
DAC
LOG AMP
A/D
MOD
AM
SINGLE STEP
31 dB
1 dB STEPS
SWR BRIDGE
31 dB
SWR CONNECTOR
31 dB
DDS
400 MHz
DDS CONTROL
40 MHz
OSC
: 4
10 MHz
ATTEN CONTROL
IF PLL CONTROL
FM DEMOD OUT
DEMOD
450 MHz
FM
LEVEL CONTROL
MAIN AM MOD
DAC
20 dB
75 MHz
ANTENNA INPUT OVERLOAD
POWER DETECT
MARKER BEACON
A/D
PWR AMP
I/O SELECT
MOD
AM
ANT CONNECTOR
ANT PROTECT
RF I/O CONNECTOR
FREQ COUNTER CONTROL
COUNT
FREQ
LOG AMP
MOD
AM
VIDEO
FREQ COUNT OUT
450 MHz
500 TO 850 MHz
SELECT
056M-04
RF Assy Block Diagram
Figure
4
Summary of Contents for IFR 4000
Page 1: ...NAV COMM Test Set Maintenance Manual 1002 5600 4P0 IFR 4000...
Page 3: ...MAINTENANCE MANUAL IFR 4000 FOR QUALIFIED SERVICE PERSONNEL ONLY...
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Page 166: ...MAINTENANCE MANUAL IFR 4000 2 3 1 Page 6 Aug 1 04 STEP PROCEDURE 4 Remove the Fuse...
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