Operating instructions
c.
Place
the
instrument
on
its
rear
panel
with
the
Crystal
Oven
Assembly
facing
forward.
Test
Equipment
Required:
a.
Frequency
Counter,
Hewlett-
Packard
l\Iodel 5245L,
or
equivalent.
b.
Tuning
Tool,
GC
Electronics
No.
8279.
c.
Signal Gene
rator,
Hewlett-
Packard
Model 608
or
612.
Table
5-1.
Power
Supply,
Resi
stances
to
Gro·md
5.4.3
Frequency-Meter
Adju
stment
Prel
i
minary
Instructions:
a.
Balancing
the
Second
IF
and
Dis-
criminator
board
0054 (CH-A2)
should
prec
ede
adjus t ment
of
the
FREQUENCY
meter.
P
erform
the
following
CAL.
and
FM
CAL.
centering
adjustments.
NOTE
The
SIGNAL
LEVEL
lamp
must
be on
before
pr
oper
adjustments
can
be
performed.
+5V
(gr
een
w
ir
e)
-12V
(orange
wi
re)
+ 20V
(red
wire)
lIIea
sur
ed
Re
s.
M
easured
Re s .
Me
asured
Res.
at
(ohm s)
at
(oh
ms
)
40
0-450
at
Pin
17 of
(oh
ms)
CE- 7
Monitor
t
Pin 15 of
75
0-170
0*
Pin 14 of
500
-550
(le s s plu
g-in
s)
Rf
plug
-in
Rf
plug
-in
RF
plu
g-in
r
ecept
acle
re
ceptacle
rec
eptacle
:-lodel 30 1
Os cillosc ope
:\ot used
--
Pin 14 of
con necto r
4.5
K-7.
5Kt
t
Pin
13 of
con
nec
to r
1.
5K-1.
8K*
Xlodel 302
:\ot us ed
--
Pin 14 of 8. 2K- 8. 5K*
Pin
13 of
1.7K
Dev
iat
ion
co nne cto r co n
nec
to r
Xleter
Mode! 303
Pin 15 of
3
.5
K* Pin 14 of
500
Pin 16 of
1.
8-2.4K*
t
tt
Broa
dband
co nnecto r
co
nnect
or
con
nec
tor
Mix
er
Pin
17 of
10K*
connec tor
Xlodel 304
Pin 14 of
1. 25 K
-50
K* Pi n 14 of
265
Pin
16 of 80 0
Pre
sele
ctor
conn
ector
conn ec to r
co nn
ec
tor
Pin
17 of
22 K
-30
K*
con
nec
tor
Xlode l 30
.5
Pin 15 of 1.
2.5
K- 50K*
Pin
14 of
265
Pin
16 of
3. 8 K
Pr
e
sel
e
r:
tor
conne ctor co n
nec
to r co nn
ec
tor
Pin
17 of
24K
co n
nect
or
Model
3C
l6B
Pin 15 of
5. 3K
Pin 14 of
500
Pin
16 of 3K
Prese
lec tor
con
nec
to r
c
onn
ect
or
co nne
ctor
,-
Pin
17 of
12K
co n
nec
to r
:\OT E: All r esi
stan
ce r e
adin
gs taken
with
a
Simp
son 270 u
sin
g R
XI00
sc
al e .
.
--\ll
re
si
stan
ce
re
ading
s of modul e s
taken
with
mo
dule
r
emo
ved fr
om
set.
*De
pended
on ohmme t
er
test-l
ead polar ity . The r e
adin
gs may
als
o
vary
dep
ending
upon ohm
me
ter
range
.
t i\
Ieasure
r esi
stance
to
chass
is
of supp ly lin
es.
tt
Re si st an ce
rea
dings t
aken
with "ve
rn
ie
r"
pot in
mid
p
os
it io n.
ttt
R
es
is
ta
nce r
eadings
taken
with
se
le c
tiv
ity s
wit
ch in "
nor
mal" .
5-3
5601"0015"1
..
1iiIIo _