ADF TEST ACTUATE
TEST34-21-00
D39
M34 SENSE
(STA 727 SWITCH
54
LBL 45)
COUPLER 32
1
(STA 727 LBL 45) 31 SAME AS N630
CAPTAINS RDDMI1533
S1 A DC N7 F/O RDDMI (P3)
POWER
26V AC M28SUPPLY C60
28V DC
ADF-1
ADF 1
RCVRNC
NC
(E2-4)
2636 8 432816 3722 3233343513143031910111227152324 D61 115V AC
B
C49
D69
INSTR XFMR 1 K L JAja_Ct_s__fgh_n_pqr_XYZm_i_F TU
_
NC
ANT
OFF
P18 CIRCUIT BREAKER OFF
PANEL
ADF
ANT
THOU-ABCDA BCDA BCD
TENTHS
TESTADF
SANDS HUNDREDS BCDTENSBCD UNITS BCD
LEFT FREQUENCY SELECTGAIN T171OFF
D69 AUDIO FLT INPH SYSINSTR ANT
HV D69
W
(23-51-00)XFMR 1
LV H THOU-ABCDABCDABCD
ADF TFR TENTHS
26V AC
GND
SANDS HUNDREDS BCDTENSBCD UNITS BCD
TESTRIGHT FREQUENCY SELECT
(E1-2)
A
TFR
FROMB
TONE
P8 PANEL
12005
12055
OFF ON
OFF ON
LIGHTING
A
1 TEST INDICATIONS AREF OFF TEST
DANT ADF
TONE
WW
CONTROLP
RDDMI POINTER TO 315 |5 DEGREES1.5V AC
GAIN
(RELATIVE TO LUBBER LINE)(33-11-00)
W W
1020 HZ AUDIO TONE OUTPUT
2.M
45 DEGREE GONIO METER INDICATION
3.
ON RECEIVER FRONT PANELADF-1 CONTROL PANEL (P8)
ADF System Schematic
Figure 3 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITHOUT EFIS ú
34-57-00
ú ú 10 Page 6 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
34-21-00
1 LOOP
"A"
GGC
LOOP 15 MHZ
DME-1DME-2
BALANCED BANDPASS FIRST SECOND 3.6 MHZ
HHB0
CRYSTAL
GONI-RF TEST
MODULATOR FILTER MIXER MIXER FILTER
FILTER
OMETER 1ST
F FD
IF
TESTFREQ
EE E
INDICATOR
AAA
SYNTHESIZERBAND
1 ADF POINTER
2ND
TEST LOGIC D39
BB H
PHASE
VOR 2 MIXER
HORIZ
IF
11XDD F
26V AC
MODULATIONOSC
90 HZ POSITION
D6325YCIRCUIT
X
DETECTOR 19
13XCCG
Y
20 29Y
19V
Z DC
AGC 21 39
MON AMPLITUDE
X YZ
LOOP ANT
CKT "B" LOOP
40
15 MHZ SERVO MODULATION AUDIO
TX K1
XMIT CABLE OSC PHASE
X M33 LOOP M153
27
DETECTOR
CH
18
Y
SERVO DETECTOR
C TR
H
RF
Z (STA 560 BOTTOM) ERROR CORRECTOR D67 SENSE
12
17
ANTENNA QUADRANTAL
SERVO
LOSS OF26V AC ADF 2
SIGNAL
DISABLE = 1 26
AMPL
E
SIG = 1 LEVEL
28 C
DETECTOR
SENSE
RF TONE N7 F/O RDDMI (P3)
A
AUDIO
TUNING
GEN MUTING
1020
TRIAXIAL
B 28V DC CABLE
HZ
M31 SENSE
ANTENNA
ADF TEST ACTUATE
TEST34-21-00
D37
M33 SENSE
(STA 727 SWITCH
40
LBL 45)
COUPLER 12
1
SAME AS N729 F/O'S RDDMI
(STA 727 LBL 45) 28
13
28V DC
26 S1
C61
A
ADF 2
DC N6 CAPTAINS RDDMI (P1)M29 SUPPLY
ADF-2
RCVR POWER 26V AC NC
NC
(E2-4)
2636 8 43 28 16 3722 3233343513143031 910111227 15 2324D63 115V AC
B
C50
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