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IALIGNMENT
INSTRUCT!ONS
TEST
EQUIPMENT
EOUIPMENT
NAME
REMARKS
1. Frequency counter
2.
Oscilloscope
3.
RF signal generator
4.
RF
wattmeter
5.
Dummy antenna
load
6.
RF voltmeter (w/probe)
7.
AC voltmeter
8.
DC power supply
9.
VOM
10. Directional coupler
(T-Type)
11. Spectrum
analyzer
12.
Audio generator
0.0001% Accuracy,
Up
to 40
MHz
DC
to
50
MHz
25O
kHz to 30
MHz
50
O
lnternal load, 0
to
10 W
50 Q with PL-259 plug
(Transmitter testing)
Max. range 2 to 3
V
Standard service
equipment
20v2A
Max. 2 A
50 dB attenualion
at27
MHz
(for spectrum snalyzer)
Resolution 300 Hz
S/N
60
dB for
spurious signal check
Standard service
equipment
ICONTROL
SETTING
&
PREPARATION
IT
1.
Set volume control to
MAX.
2.
Set squelch control to
MlN.
3. Set NB/ANL switch to
OFF.
4.
Use channel 20 for
adjustment.
5. Set RF GAIN
control
to
MAX.
6. Set Preset channel
switch
to
OFF
7.
Connect
microphone
to
transceiver
Transmission.
.
.Keep
pressing
MIC
lever
Reception.
. .Release
MIC
lever
8, Connect RF wattmeter (with
50 O)
9. Connect DC
power
cord
to
'13.8
V. (red
lead
@
w/fuse)
10. Standard audio output during
reception S00
mW/8 O
(2
V/8
O)
11. Standard input during reception:
60
dB (1
mV),
1
kHz,
30o/o.
ISTANDARD
OSCILLATOR FREOUENCY
CHECK
Co
:
S€
@
E
I
Cr
a
: :
v
J
E
I
c
CONNECTIONi
CONDITION
ADJUSTMENT
REMARKS
Connect Frequency
counter:
O
side through
lOpFto
ITP12l
6
sioe
to
lf-
Set transceiver in
receiving
condition.
(Refer
to fig.
9)
counter
to
metal
chassis. Use
ground
ol
circuit
board.
I35.74
MHZ
ADJUSTMENT
Connect
RF
voltmeter:
@
side
to
lTP6l
O
side
to
P
Set transceiver in
receiving
condition. (Reter to fig.
10)
C89
(Trimmer)
T13
(VCO)
.l
)
Turn C89
to
its center
position.
2)AdjustTl3
for
maximum
RF
voltmeter
reading.
3)
Adjust
T1
3 to
a
point
which is
1
dB
below
the value
at
which
the
peak value was shown on the
RF voltmeter.
I
I
I
FIF
voltmeter
reading
T13
+
Pull out
Connect Frequency
counter:
@
side through 10
pF
to
lTP6l
Q
side
to
[f
(Remove RF
voltmeter)
(Refer to
fig.
11)
CB9 (Trimmer)
1) Adiusf C89 until
35.74
MHz
+300
Hz
is
read on
the
frequency
counter.
Note: Do
not
connect
Q
side of
frequency counter
to
metal
chassis. Use
ground
of circuit
board.
IVCO
ADJUSTMENT
Connect DC
voltmeter:
@
side
to
lTPsl
O
side
to
E-
(Refer to
fig.
12)
Set transciever in
receiving
condition.
C28
(Trimmer)
I)
Set to channel
1.
2) Adjust C28 until
1.15
V 10.1 V
is
read on
the
DC voltmeter.
Note: Do not
connect
Q
side of
DC
vollmeter to
metal chassis.
Use ground of circuit
board.
Connect RF
voltmeter:
@
side
to
lTP4l
e
side
to
[El
(Refer to
fig.
13)
Set transceiver in
receiving
condition.
T4
(VCO)
1)
Set to channel
20.
2) Adjust T4 for maximum RF voltmeter
reading.
triote:'Oo not
connect
Q
side
of
RF voltmeter
to
metal chasis'
Use ground of circuit
board.
LE nu-sooo
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