M A I N T E N A N C E P R A C T I C E S - BENDIX ADF-T12B Maintenance Manual

M A I N T E N A N C E P R A C T I C E S
1 . G E N E R A L
A. This section of the manual contains information and procedures for performing tests and adjustments
together with corrective and preventative maintenance of the ADF-T-12B, CSystem.
2 . A D J U S T M E N T / T E S T S
A . J O B / U S E
The alignment procedures detailed in this section of the manual are performed to adjust the
system for optimum performance. The performance tests detailed in the following paragraphs
will determine whether the system meets its minimum performance requirements.
(1)
N O T E
Perform all alignment procedures in the order listed.
B . T E S T E Q U I P M E N T R E Q U I R E D
(1) The test equipment (or equivalent) required to perform the procedures detailed in the following
paragraphs are listed in Table 101. The basic system test set-up required to perform these
procedures is illustrated in Figure 102. Instructions for connecting ^ditional equipment are
included in the specific procedures as required.
T A B L E 1 0 1
T E S T E Q U I P M E N T
P U R P O S E O F E Q U I P M E N T N A M E O F E Q U I P M E N T
R E P R E S E N T A T I V E T Y P E
To simulate loop and sense r-f signals for
application to receiver input for alignment
p u r p o s e s .
R-F Signal Generator G e n e r a l R a d i o 8 0 5 C
Used to modulate R-F signal generator and
f o r c h e c k i n g p o w e r o s c i l l a t o r .
H e w l e t t P a c k a r d , M o d e l 2 0 0 B
A-F Signal Generator
Used to visually check voltage waveforms
during specific tests and adjustments.
O s c i l l o s c o p e D u m o n t , M o d e l 3 0 4 H
H e w l e t t P a c k a r d 1 3 0
Used to check voltage and resistance of
c i r c u i t s w h e r e r e q u i r e d .
T r i p l e t t M o d e l 6 3 0 M u l t i m e t e r
Used to measure R-F and A-F voltages.
Hewlett Packard, Model 400C
A C V T V M
U s e d t o m e a s u r e a u d i o o u t p u t p o w e r.
G e n e r a l R a d i o , M o d e l 5 8 3 A O u t p u t P o w e r M e t e r
P r o v i d e p r i m a r y d - c p o w e r t o s y s t e m .
1 4 v d c a t 5 0 0 m a
2 8 v d c a t 4 0 0 m a
Perkin, Model MR532 -15A Power Supply
U s e d t o i n t e r c o n n e c t a l l c o m p o n e n t s o f
system for bench test purposes.
B e n d i x , p a r t n o . 2 V 0 0 5
a n d 2 V 0 0 9
System interconnect
cable and loop line.
Simulate sense antenna during tests. See
Figure 101.
S t a n d a r d t e s t s e n s e
a n t e n n a .
Shielded room necessary to adequately test
a n d a d j u s t s y s t e m i n A D F m o d e o f o p e r a ¬
tion (See 2. C.)
S c r e e n R o o m ( FA A
A p p r o v e d )
A c e M f g . C o . ,
P h i l a d e l p h i a , P e n n s y l v a n i a
A p r i l 1 9 6 5
(Revised April 1967)
Page 101