The new Galaxy FM-210 is a top quality 2 Meter FM transceiver designed to offer no compromise performance for
direct
transceiver maintains the
ance
Galaxy Electronics. Backed by a
best
to
Electronics, "THE PACESETTER IN
or
repeater
and rugged
service
policy
the growing
communications. This
same
reliability
ever,
list
of communications equipment by Galaxy
that has
we are proud to add the FM-210
high standard of perform-
become
full
year warranty and the
fully
solid
a trademark at
AMATEUR
DESIGN.
state
"
Page 4
CONTENTS
SECTION
SECTION
SECTION
1 -
UNPACKING
1.
1 Removing From Carton
1.
2 Warranty Registration
1.
3 Shipping Carton
1.4 Re-Assembly
2 -
INSTALLATION
2. 1 General
2.2 Antenna
2.3 Microphone
2.4 Power
2.5 Location
2. 6 Control Functions
2.7 Rear Panel Jacks
3 -
OPERATION
3.1 General
3. 2 Ground Connection
3. 3 Receiver Operation
3.4 Transmitter Operation
3. 5
Crystal
1
2
8
Ordering Information
SECTION
SECTION
SECTION
SECTION
SECTION
FIGURE
4 -
THEORY
4. 1 General
4. 2 General
5 -
TEST
5. 1 General
5. 2 Receiver Alignment
5.3 Transmitter Alignment
6 -
PARTS
7 -
SERVICE INFORMATION
8 -
WARRANTY
NUMBER
1 Microphone Connection 3
2 Power Plug Connection 4
3
Fixed Station Cable Connections 4
4 Front View of the FM-210 6
5
Rear View of the FM-210 7
6 Audio Test Fixture 28
7 FM-210 Block Diagram 29
8
Bottom
9 Top View of FM-210 31
10 Transistor
11 FM-210 Schematic Inside Back Cover
OF
OPERATION
Circuit
Circuit
AND
...
' ^0^.
DESCRIPTION PAGE
ALIGNMENT--
LIST
--16
- —— 27
LIST
OF
ILLUSTRATIONS
View of FM-210 30
Lead
10
Analysis for Transmitting
Analysis for Receiving
11
26
Orientation 32
NUMBERS
Page 5
1.
1 Removing
From
SECTION
UNPACKING
Carton:
I
Carefully
Examine
4 screws on the
out of the cabinet. Remove all hold-down tape and check to insure
their
Should
DELIVERING
the
full
1.2
"Warranty
Fill
out the enclosed
mail
1.3 Shipping
Save
need it at a later date for shipment or storage of the transceiver.
1.4 Re-Assembly:
remove the
it closely for signs of shipping damage. Remove the
bottom
that all transistors and crystals are properly seated in
sockets. Inspect closely for any signs of internal damage.
any shipping damage be apparent --
CARRIER IMMEDIATELY
extent
it
TODAY
Carton:
the packing material and the shipping carton. You may
of the damage and file a claim
Registration:
to insure that your warranty
Galaxy
of the cabinet and slide the transceiver
WARRANTY
FM-210 from the packing carton.
NOTIFY
! State to the
IMMEDIATELY
REGISTRATION CARD
will
THE
carrier
and
be on file.
!
After
you are satisfied that no damage has resulted from shipment,
and
have removed all tape and insured that all crystals and transistors
are
properly seated in their sockets, replace the cabinet.
T
I T
TR
8x
-
1
. - 'h It • «i
pniqari'*
Page 6
2. 1
General:
Do not attempt to operate your FM-210 or make any connections
until
you have read this entire section carefully and understand
its content.
2.2 Antenna:
The
FM-210 is designed to work with any of the common antenna
systems for use on the 2 Meter amateur band with a nominal
impedance of unbalanced 50 ohms resistive. Any antenna system
should be adjusted so that SWR is kept to a minimum, preferably
less
than 2:1. The antenna connection provided on the
of the FM-210 is an SO-239. To connect your antenna transmission
line,
you
will
SECTION
INSTALLATION
need to provide a
II
PL-259
connector.
rear
panel
NOTE:
In
useless
items are
on the air. A few moments here to make sure that you have a
grade of
a
great deal of difference in the performance of your new
2.3
Microphone:
The
wideband, flat frequency response microphone. Microphones with
limited low or high frequency response with peaks in the voice
range, commonly used for SSB communications
factorily,
shaping is accomplished in the FM-210 and is not required in the
microphone.
The output of the FM-210 is Unbalanced. If the
'SfttT
antenna, a matching device, such as a
VHF operation, remember that the most efficient transmitter is
without a
RG-8/U
best
performance from your FM-210
transceiver
Coil,
should be used. If your balanced antenna
is
Gamma
not be required.
often
but at somewhat
overlooked by the amateur who is in a
is to be operated into a balanced
or Beta matched the
good
coax cable and a
antenna and transmission line. These two
less
than maximum performance. Audio
good
Balun
antenna installation
will
result when using a
Coil
Balun
will
will
work satis-
hurry
will
FM-210.
to get
good
make
2
Page 7
The
microphone
A
three
conductor
input is a
(3-circuit)
HIGH
the jack provided on the front
such
as Switchcrafts
plug and
microphone
S-260
are
connected
or
below --
IMPEDANCE input.
microphone
panel
of the FM-210. A plug
equivalent
plug is required for
should be
as shown in the illustration
used.
The
Swifchcraft
S-260 or
It
is
with
means
equivalent
MICROPHONE CONNECTION
FIGURE 1
NOTE '
necessary
the FM-210 as
to switch into transmit
to utilize a PTT
there
is no
mode.
microphone
alternate
Page 8
2.4 Power:
The main power
Jones
the 12 VDC power cord supplied
part of the AC-2 10 Power Booster. The power plug pins are
WARNING:
source
will
type
Jack
S-308
on the
rear
of the FM-210 requires a Cinch-
CCT connector. This connector is included
with
FIGURE
the FM-210 and is
2
also
with
a
Double-check your power cable. Incorrect polarity of the power
cause
permanent
damage
to the FM-210.
2.5 Location: < Ua
The location of the FM-210,
fixed
or mobile is not
critical.
Due to transistor limitations, however, the FM-210 has an operating
range
2.
5. 1 Fixed installation -- the Galaxy Model AC-2 10 Power Booster is
of 32-140
required for
degrees
fixed
Fahrenheit.
station operation. Figure 3 shows the proper
connections between the FM-2 10, AC-210, Antenna, and Ground.
Aceio
POWER
SUPPLY
<Y"
FIXED
STATION
CABLE
CONNECTIONS
FIGURE
4
3
Page 9
2.5.2 Mobile Installation The FM-210 as supplied with the power
cable is ready for mobile operation. The FM-210 can be installed in any vehicle having a
electrical
system. An optional mounting bracket (MMB-210)
NEGATIVE
ground 12 VDC/
is available to mount the FM-210 unaer the dash.
2.5.3 Mobile antenna installation -
manner
recommended by the antenna manufacturer and connect
the coax transmission line to the FM-210 with a
Install
a mobile antenna in the
PL-259
connector. Mobile antenna installation is another item that
is
often
on this subject -- your time
overlooked.
Read
some
will
of the many
good
be well spent and
books available
will
be re-
flected in your mobile enjoyment.
2.5.4 Ignition noise -- In most mobile installations, ignition noise
becomes
tion is not an automatic
a problem.
Contrary
cure-all
to popular opinion, FM opera-
for ignition noise. Analization
of ignition noise indicates an FM component that can appear
as annoying interference in mobile FM operation. When troubled
with
ignition noise, it is recommended that you install resistor
type
spark
in
the center tower of the distributor cap. In addition, a
ohm suppressor resistor is
plugs and insert a 10, 000 ohm suppressor resistor
5000
suggested
for each
spark
plug tower
on the distributor cap. A coaxial capacitor at the ignition coil
primary,
another
mounted as
MUST.
If noise is
close
to the coil terminal as possible is
still
present, again we
suggest
that
you consult the many articles and books written on the subject.
There
kits
are also several
available.
good
commercial noise suppression
5
Page 10
FIGURE 4 o = ,..ju^a
2.6 Control Functions: >:>i:"?!' w k!
J-~. 0 ^0
1
-- SQUELCH CONTROL
This control is located behind the
used
to set the level of the
squelch
AUDIO
Gain control and is
threshold.
2 -- ON-OFF SWITCH
When the
AUDIO
Gain control knob is in the maximum
AUDIO
GAIN
CONTROL
counter-
clockwise position, the power to the FM-210 is turned OFF.
Advancing the control clockwise
the power is ON, the control
3 -- MIC (Input
The microphone jack
Switchcraft
the
sleeve
or barrel is GROUND. (See Fig. 1)
4 -- RECEIVE Crystal
A
three
crystals
position
that
Jack)
S-260.
selector
will
determine
requires
The tip is PTT, the ring is
Selector
switch
turns
governs
the power ON.
the
audio
output (volume).
a small 3-circuit plug
AUDIO
Switch
that
the
receiver
selects
one of
frequency.
Once
such
and
three
as
5 -- Indicator Light
A
pilot light
6 -- TRANSMIT Crystal
A
three
crystals
that
position
that
will
will
activate
Selector
selector
determine
whenever
Switch
switch
that
the transmitter
the FM-210 is ON.
selects
one of
three
frequency.
6
Page 11
REAR
VIEW
OF THE FM-210
2.7
FIGURE
Rear
Panel
1
-- Antenna -- An SO-239 connector
input.
2 -- Power -S-3 08 CCT mating connector. This connector is included
the 12 VDC power cord supplied
part of the AC-2 10 Power Booster.
3 -- GROUND LUG -- Grounding connection for external ground.
Should
for
fixed
tions .
4 -- FUSE -- The fuse is in
protects both the FM-210 and the AC-210 , when
3 amp
fuse
Jacks:
It requires a PL-259 plug on your
Main
be connected to cold-water pipe or good outside ground
station use, or to the body
FAST-BLOW
will
not provide the
power connector requiring a Cinch-Jones
series
(type 3 AGO) fuse. Any other type or value
necessary
5
which
with
the FM-210 and is
chassis
with
transistor protection.
is the 50 ohm
antenna
for mobile installa-
the ON-OFF switch and
coax feed
used.
also
Use
antenna
line.
with
a
ONLY
7
Page 12
3, 1 General:
SECTION
OPERATION
III
Before Proceeding
the transceiver has
Section
WARNING:
3.2
Ground
A
grounding lug is provided on the
in
Figure 5. It is mandatory that a
provided
tion. The ground lug should be attached to a cold water pipe or
good
mobile operation.
3.3 Receiver Operation:
The
proper
receiver
that frequency. To operate the FM-210 receiver, first set the >
RECEIVE
control
clockwise until unsquelched
just
rotate the
disappears.
control.
the sensitivity of the receiver whereby weak signals
heard.
returned
and
refer
III,
whether it be for fixed station or mobile operation.
Incorrect polarity of the power source
permanent damage to the
Connection:
for optimum performance in both mobile and fixed opera-
earth ground in fixed operation and to the vehicle chassis in
FM-210,
crystal
to maximum clockwise and
the
AUDIO
Further
For maximum sensitivity, the
align the FM-210 receiver for operation on additional frequencies,
to paragraph 3. 5 and Section IV.
as shipped from the
has
been
selector switch to channel #1;
SQUELCH
This
"off" (maximum clockwise).
with
operation of your
been
in position =1 for operation on 146. 940 MHZ. The
pre-tuned to accept wideband FM signals at
control for a comfortable listening level and
is the
adjustment of the
properly installed in accordance with
rear
good
Galaxy
turn
noise
control counter-clockwise until the
most
is heard in the speaker. Ad-
sensitive
SQUELCH
FM-210,
FM-210.
of the FM-210 as shown
ground connection is
factory, includes the
turn
the
AUDIO
setting
SQUELCH
Note:
To order crystals
be sure that
will
cause
the
SQUELCH
control
noise
of the
control
SQUELCH
will
reduce
will
not be
control may be
just
3.4 Transmitter Operation:
The
FM-210 as shipped from the
crystal
has
into
than
For
alignment outlined in paragraph 5. 3. 6.
of the FM-210 case to permit easy access to the proper controls.
in position #1 for operation on 146. 940 MHZ. The transmitter
been
optimum matching to the antenna, perform the Power Amplifier
pre-tuned to transmit wideband FM signals at that frequency
a 50 ohm
a 50 ohm resistive load should be avoided.
NGN-REACTIVE
Galaxy
load. Any antenna presenting other
8
factory, includes the proper
There
are
holes
in the
bottom
Page 13
To
switch to channel #1 and key the transmitter with a PTT micro-
phone
3.5
Crystal
operate
the FM-2 10 transmitter, set the
.
Ordering Information:
TRANSMIT
selector
Proper
crystals to permit operation of the FM-210 on additional
frequencies may be obtained from the following sources. - ^
Sentry Manufacturing M Crystal
Chickasha,
Park
East
Oklahoma Yankton, South Dakota
TRON
Highway 50
73018 57078
Specify Galaxy
(Receiver
Crystals)
CAUTION:
Part
Number
117-39
(Transmit
Crystals)
along with the desired operating frequency.
Do not specify exact crystal frequency to
suppliers as
they
will
automatically use the
or
these
117-40
appropriate conversion formula for the FM-210.
When ordering crystals from suppliers other than Sentry or
M-TRON,
the following additional specifications must be included:
RECEIVE
Desired
Crystal:
Crystal
= Operating Frequency - 10.7 MHZ + 5 KHZ
3
HC
- 6 Holder Type
+
.002% Temperature Tolerance from 0° - 40° Centigrade
+
. 002% Grinding Tolerance @ 25° Centigrade
3rd
Overtone - Series Resonant •.: • ,
.
TRANSMIT
Desired
Crystal:
Crystal
= Operating Frequency + 1.3 KHZ |j 0
8
.
. • . • '417 ^ ; '
HC-6
Holder Type t
+
. 005% Temperature Tolerance from 0° - 40o Centigrade >
+
. 005% Grinding Tolerance @
Fundamental - Parallel Resonant calibrated
250
Centigrade ... i-ti.
into
a 32 p£ load
9
Page 14
SECTION
IV
4.1
General
Refer
The
Q401 and Q402 configured to form a high gain amplifier used to
drive
from
characteristics.
distortion is produced. Q4 04 and Q405, part of an
NETWORK,
FILTER
characteristics
ness
then applied to the
of the
crystal
acts as the first frequency doubler. The signal is then presented
to the second frequency doubler Q407 which
frequency doubler. The signal, now at operating frequency, is fed
to Q2, the amplifier driver
feeds
antenna relay to the antenna.
THEORY
Circuit
to the block diagram (Figure 7) and the schematic diagram.
voice signal from the microphone is passed to transistors
Q403. Q403 clips the extreme positive and negative peaks
the voice signal, thereby enhancing the average modulation
NETWORK
of the voice characteristics. The "shaped audio" signal is
crystal
frequency in direct response to the wave form. Q406 also
the output networks which couple the RF power through the
Analysis for Transmitting:
When clipping,
suppress
by 6 db per octave to further enhance the effective-
oscillator Q4 06 is accomplished by varying the
these
also tilts" the transmitter audio response
Varicap
OF
OPERATION
some
higher order products.
Modulator where frequency modulation
stage
for Q3. Q3, the power amplifier
undesireable harmonic
feeds
ACTIVE
This
Ql, the
FILTER
ACTIVE
third
4.2
General
Again,
diagram.
relay
Transistor
stage,
harmonic
three" multiplier Q104. The mixed signal is then fed to the
IF
networks allow the difference mixed signal at 10. 7 MHZ to pass into
the Second Mixer
Oscillator
This
for optimum FM reception. The signal is then fed to Intermediate
Amplifiers
produce limiting in the next two
signal is then presented to the fixed tuned discriminator
the signal is converted to audio. The audio signal is then routed to the
First
signal then passes to the Squelch Gate Q306. Providing the signal
presented to the Squelch Rectifiers D201 and D202, is strong enough
to
Driver
drive
Circuit
refer to the block diagram (Figure 7) and the schematic
The incoming signal is switched through the antenna
and coupled to the RF Amplifier
(FET).
Q102, another
of the
Amplifier Q201 and its associated selective networks. These selective
Q2 03 output to produce a difference mixed signal at 450
450 KHZ signal is then fed into a 4
Q204 and Q2 05 which amplify the signal sufficiently to
and Second Audio Amplifiers, Q3 01 and Q302 respectively. The
"turn
off" the Squelch Gate Q306, the signal is passed to the Audio
Q303 and on to the Audio Output
the speaker.
Analysis for Receiving: 0 : "
stage
The amplified signal is now fed to
First
stage
FET.
Oscillator Q103, as delivered by the "times
Here the signal is mixed with the
Q2 02 where the signal is mixed with the Second
stage
Q206 and Q2 07. The limited
QlOl, a Field
pole
Chebishev filter adjusted
stages
Q304 and Q305 which
Effect
First
TF201,
Mixer
third
Rrst
KHZ.
where
10
Page 15
TEST
AND
5. 1
General:
For
this alignment, it is assumed that the FM-210 transceiver is in
good
electrical condition and that alignment is necessary due to
component
minus 1 MHZ from factory aligned frequencies.
5.1.1 Test Equipment Required:
replacement or frequency changes greater than plus or
SECTION
ALIGNMENT
V
Vacuum
1.
5.
50 ohm Non-Reactive Dummy
MHZ
Accurate
modulation req'd)
4.
Tuning
5.
Tuning
6.
Tuning
7.
Frequency
output frequency.
NOTE:
<F
crystal
8.
Deviation Meter capable of measuring 15 KHZ deviation.
Audio
9.
volts
5. 2 Receiver Alignment:
5.2.1 450 KHZ
Tube Voltmeter, Hewlett
to 25 0 MHZ
Signal Source on operating frequency. (CV no
Tool GC#5009 or equivalent.
Tool GC#8606 or equivalent.
Tool GC#8609 or equivalent.
Meter or other means of determining
An accurate Communications Receiver may
be used to receive harmonics of the transm.itter
oscillator.
Output
frequency multiplication.
Frequency Generator capable of generating . 05
RMS at 600 ohms.
Filter
frequency can then be determined by direct
Alignment: V .
Packard
Load,
410B or equivalent.
minimum 10 watts (100
CAUTION:
or
T208 is necessary, it is recommended that alignment of the filter
section not be attempted in the field. If filter section alignment is
contemplated, the following additional
1.
Calibrated
2.
Oscilloscope with bandwidth capability of 5 MHZ minimum
and
Apply
from
its socket. Attach the Signal Generator to the IF board as
shown in Figure 8. Adjust the Signal Generator output so that the
voltage
Peak
to Peak.
the filter alignment process. Attach the probe of the
Unless a
RF Signal Generator covering 45 0
10
pf /
10
power to the unit and remove the 2nd Oscillator
at the collector of Q202
This
component
megohm
should be accomplished several
maximum loading.
change in the 450 KHZ filter Section
test
equipment is required:
(TP-F)
11
Fig. 9 never
KHZ.
exceeds
times
crystal
oscilloscope
(X2 01)
. 5
volts
during
to
Page 16
the collector of Q202 and adjust the frequency of the signal generator
for O V at the top of R224. In performing the following, temporarily
short the winding of T205 to ground (see Fig. 8).
CAUTION:
Tune
the slug of T204 for
CAUTION:
Remove the short from T205 and temporarily short T206 to ground.
Tune
T205 for
short from T206 and temporarily short T207 to ground. Tune T206
for
MAXIMUM
Remove the short from T2 07 and tune T207 for
Move the
Fig.
9). Tune T208 for
oscilloscope
the 2nd Oscillator crystal.
5.2.2 let Oscillator and "Times
Attach
Tighten trimmer capacitor C113, CI 14 or CI 15 (depending on
channel in use) finger tight.
clockwise until the
somewhat
actually peaks. Remove the
to the top of R104. (TP-B Fig. 9). Tune the slug of L103 for
maximum on the
Insure that T-205, T-206 and T-207 are never
inadvertently shorted to any DC
MAXIMUM
The primary of T204 has 12 VDC present. Do not
short to ground.
MINIMUM
indication.
oscilloscope
probe, disconnect the RF Signal Generator and re-insert
the DC probe of the
VTVM
critical
and care should be used to insure that the meter
VTVM.
indication on the oscilloscope. Remove the
probe from Q202 to the top of R219. (TP-C
MAXIMUM
peaks upscale.
Disconnect the
Three"
VTVM
Turn
VTVM
voltage.
indication on the oscilloscope.
MINIMUM
indication. Remove the
Multiplier Alignment:
to Q104 source. (TP-A Fig 9).
C113, CI 14 or C115 counter-
This
from Q104
VTVM
(TP-A)
i
indication.
adjustment is
and attach
from R104.
.-A
A
5.2.3 10.7 MHZ Intermediate Frequency Alignment:
Attach
and
AC
slugs
5.2.4 Converter Board Alignment:
With
of the
maximum indication.
may be necessary to reduce the signal level to prevent limiting of
the signal.
result in a sharp "peak" indication on the
VTVM
the signal source (operating frequency) to the Antenna
adjust the signal to approximately 50 microvolts. Attach the
probe of the
in T203, T202 and T2 01 for maximum indication.
the signal source attached to the Antenna
VTVM
Limiting
but leave the signal source connected.
VTVM
on the top of R219
to the top of R219 (TP-C Fig. 9). Tune the
NOTE:
is indicated when the adjustments no longer
As the various
(TP-C)
12
Jack
tune C103 and C106 for
stages
VTVM.
Jack
and the AC probe
are tuned, it
Disconnect the
Page 17
5.2.5 Channel Frequency
Alignment:
Attach
Adjust
the
,
NOTE:
,!
as follows:
the DC probe of the
C113, CI 14, or C115 for 0
VTVM
Operating
probe, alignment of the receiver section is completed.
The exact
crystal
Frequency - 10.7 MHZ + 5 KHZ = Desired
VTVM
to the top of R224 (TP-D Fig 9).
volts
on the
VTVM.
Disconnect
frequency (receiver only) is computed
Crystal
3 Frequency
To
order crystals for additional operating frequencies, see paragraph 3.5.
5.3 Transmitter Alignment:
5.3.1 Frequency Adjustment: ' s i.
Attach
set the
a dummy
Load
TRANSMIT
to the Antenna putput
jack
on the
FM-210,
frequency selector switch to the desired
position, and apply power to the unit. If a Frequency Counter
on the operating frequency is available, this should be coupled
at the Antenna
receiver
to monitor the
Jack.
An alternate method is to use an accurate
crystal
frequency. When utilizing this
method, calibrate the receiver at the checkpoint nearest the
crystal
•
the center conductor of
receiver
near
frequency to the desire
frequency. Attach a 6 inch length of insulated wire to
antenna
the FM-210
jack
to the
crystal
enough
oscillator circuit and adjust the receiver
crystal
coaxial cable to reach from the
FM-210.
Place the insulated wire
operating frequency according
to this formula:
'
Operating
Key
the transmitter with the microphone or special
(Figure
(C410 - CHI,
Frequency = Desired
8
Crystal
Freq.
test
fixture
6). Adjust the frequency trimmer for the channel desired
C411 - CH2, C412 - CH3, see Fig. 9) until "zero^
beat" is accomplished in the receiver. If this cannot be accomplished
and
the oscillator circuit is known to be working properly, any of
the following may be at fault:
»Js.-4
d.
Receiver
a.
The
b.
Defective
c.
Any
crystal
combination of the above.
calibration is inaccurate.
frequency was incorrectly calculated.
crystal
- incorrect
type
of tolerance.
Disconnect the receiver or frequency covinter cable.
fy-A
L
.s>0) T
mfri
13
Page 18
5.3.2
First
Frequency Doubler Alignment:
Attach
and
Remove the probe.
5.3.3 Second Frequency Doubler Alignment:
Attach
Alternately
there is
several
the probe.
5. 3.4
Third
Attach
C3
5.3.5 Amplifier
Attach
C8
the DC probe of the
adjust the
the DC probe of the
some
times
Frequency Doubler Alignment:
the DC probe of the
(Fig. 8) for maximum indication. Remove the probe.
the DC probe of the
(Fig. 8) for maximum indication. Remove the probe.
slugs
tune
interaction, this process should be repeated
until there is no further improvement. Remove
Driver
of L401 and
L403
Alignment: v» •: ; ; 7FA
VTVM
VTVM
and C423 for maximum indication. As
VTVM
VTVM
to the top of R425 (TP-E Fig. 9)
lAOZ
for maximiom indication.
to Test Point 1 (TP-l Fig 9).
to TP-2 (Fig. 9) and adjust
to TP-3 (Fig. 9) and adjust
5.3.6 Power Amplifier Alignment:
Attach
Tee-Connector
connected
for maximum indication. Readjust
several
NOTE:
should be "peaked" using a field strength meter or a SWR Meter
designed
transfer
5.3.7 Audio Deviation Adjustment
Set up a Deviation Meter according to the m^jiiufacturer's re-
j
, , commendations. In the FM-210, adjust R403 (Fig. 9) maximum
counter-clockwise
Insert
jack
Meter.
the AC probe of the
if necessary). The Dummy
to the Ante ma
times
When connecting the FM-210 to any antenna, C12 and C13
for VHF use.
of RF to the antenna.
a audio signal (. 05 Volt RMS at 1, 000 HZ
(Figure 6). Adjust R409 for 12-15 KHZ on the Deviation
Remove the audio signal.
for maximum indication. Remove the probe.
(CCW),
VTVM
Jack.
This
and R409 (Fig 9) maximum clockwise.
to the antenna
Alternately adjust CI2 and C13
L403,
insures correct matching and optimum
C423,
jack
(use a
Load
must
03, C12 and C13
into
also
the MIC
remain
14
Page 19
5.3.8 Audio Clipping Adjustment:
The
adjustment of R402 controls the clipping level and should be
set for individual operator preference. Maximum counter-
clockwise is maximum clipping (about 10 db) while maximum
clock-wise turns the audio off. Setting the notch on the control
to approximately 2 o'clock is a normal 3 db clipping level with
most
microphones. A minimum of experimenting
the
setting
and
microphones.
that is optimvun for individual voice characteristics
will
yield
15
iiOJ
Page 20
PARTS
LIST
MAIN
CI
. 005 mfd 20-3
C2
. 005 mfd "
C3
1.5 - 20 PF
C4
10 20-27
C5
.001 mfd 20-24
C6
7.0PFN330
C7
. 005 mfd 20-3
C8
4-40 PF
C9
. 001 mfd 20-24
CIO
.02 mfd 20-49
Cll
. 005 mfd 20-3
C12
4-40 PF
C13
4-40 PF
C15
.005 mfd 20-3
C15
1000 mfd 24-28
C16
.001 mfd 20-24
C17
.005 mfd 20-3
CI8
.005 mfd \ 0-3
C19
.005 mfd \3
C20
.005 mfd 20-3
C21
.005 mfd 20-3
Trimmer
20-21
Trimmer
Trimmer
Trimmer
CHASSIS ASSY
26-18
26-19
26-19
26-19
RFCl
RFC2
RFC3
Dl
D2
Ql
Q2
Q3
Q4
LI
L2
L3
L4
Jl
PI
J2
Fl
RF
Choke
RF
Choke
RF
Choke
12.
0 V
Zener
B5E5
Diode
2N4427
2N4427
2N5641
D40D1
3rd
Doub
Driver
Output
Loading
Antenna Connector
Power Connector
Microphone Jack
Fuse
Coll.
Tank
Coil
Coil
3A. F. B.
Coil
Coil
30-40
30-41
30-40
112-14
112-3
111-34
111-34
111-35
111-36
40-25
40-24
40-23
40-22
101-1
104-16
103-3
114-21
16
Page 21
PARTS
LIST
Kl
51
R9A
R9B
S2
S3
LI
TPl
TP2
TP3
Spkr
Rl
R2
R3
R4
R5
R6
R7
R8
R9A
R9B
RIO
FHl
12V Relay
ON-OFF
R9A
Complete
Complete
Sw. P/O
& R9B
Assy.
Assy.
Assy
Receive Crystal
Transmit
Crystal
Indicator Lamp
Test Point
Test Point
Test Point
9 1.8K 10-17
10 180 0}}m ' 10-71
11 2.7 K 10-66
12 l.OK 10-42
13 10 K 10-56
14 33 K 10-65
15 100 Ohm 10-7
16 150 Ohm - 10-43
17 4.7 K 10-36
18 27 0 Ohm 10-12
19 1.8K 10-17
20 l.OK 10-42
21 330 Ohm 10-28
22 390 Ohm 10-85
23 220 Ohm 10-58
24 lOK 10-56
25 10 K 10-56
26 lOK 10-56
27 4.7 K 10-36
Q201
2N3855 111-11
2
2N3855 111-11
3 2N2926Y 111-6Y
4 " "
5
II II
6
" "
•^11 II
D201
1N270 112-10
2
II , "I
3
" II
4 II II
RFC201
T201
220
Microhenry
2
1.0
Millihenry
10.7 MHZ
2
II II 'I
2
II II II
4 450
5
". " "
6
" " "
KHZ (nominal)
I.F. Transformer
I.F.
Transformer
73-35
73-36
<y M II II
Q
It 11 II
23
Page 28
PARTS
2 00-61
LIST
BOARD
.'I
TF201 Ceramic
X201
2nd Osc
Y201 Crystal
Resonator
Xtal
(WB)
Socket
PCB201 Printed Circuit Board
117-42
117-41
64-2
200-61
-0.
••t
24
a
-tyii
i) V •
- .
It
H
Page 29
PARTS
LIST
200-62
C30I
.01 mfd X- 20-5
2
. I mfd ^ 20-88
3
. 1 mfd • 20-88
5
100 mfd 29-13
R301
68 K 10% 10-33
2
1
3
lOK : ^r, H X 10-56
4 22K 5% ' 10-37
5
150 Ohm 10-43
6 2.2K 10-31
7 220K
8 12 Ohm . 10-26
9 270 Ohm 10-68
10 1. 0 Ohm IW 11-23
11
22OK
12 lOK 10-56
Q301 2N2926Y 111-6Y
0302 "
Q303
2N3638
Q304 D42C1
Q305 D43C1 (Green)
Q306 2N2926Y
MEG
10-10
5% 10-30
5% 10-3 0
111-6Y
111-10E
(Red) 111-37
x r
BOARD
n 111-38
II1-6Y
D301
B5E5
2
B5E5
PCB300
Ti 112-3
^ 112-3
Printed
Circuit
Board
200-62
25
Page 30
SECTION
vn
SERVICE
7. I Returning Equipment for Service:
DO
NOT ship equipment to
permission.
often
avoid delay of unexpected shipments.
If
time is extremely important it is better to wire or
approval
is expected, even the time of sending you the labels is
lost when an unexpected shipment is received.
It
is
VERY
insured.
and
will
this trouble. ' H
ALL
SHIPMENTS
should be made in our standard cartons only so save your
carton
be handled in three ways ... *^
when unpacking the unit. When shipments are returned it may
We prefer to send special shipping labels and this
and we
IMPORTANT
Damage claims must be settled
greatly delay any returns. Proper packing normally avoids
will
MUST
rush
that the shipment be well packed and fully 8
BE
INFORMATION
Galaxy
shipping labels to you. When a shipment ^
SENT
Electronics without
TO US
between
PREPAID.
you and the
All returns
prior
call
less
written ^
will
iota
us for
than that
ys
carrier
SI
to
Where
transportation
all service is in warranty the shipment
costs
1 - If there are any charges not covered by warranty
we can hold the shipment and advise you of costs,
which
i
with
carrier
2 - Or if there are charges not covered by warranty you
may
make
pay the transportation charges on
3
- Or we
by warranty, then the
and
you can then send and shipment
Only
send a blank check payable to us, which we
out for the charges or our service and you then
will
the transporation
collected by the
transportation
on
arrival.
ship C. O. D. for any charges not covered
carrier
costs
carrier
costs
on
collected by the
will
arrival.
will
be returned with
on
arrival.
will
arrival.
collect
these
arrive
will
charges
•iota
s
26
Page 31
SECTION
WARRANTY
VIII
GALAXY ELECTRONICS
or
workmanship existing in the FM-210 at no
clusive of shipping charges, provided:
-That
-That
-That
-That
This
warranty applies to labor for a period of 90 days, and for other
parts
for a period of one year from the date of purchase by the original
owner.
The
warranty applies to only the original purchaser and is not transfereable.
the
defect
installation or use contrary to our instructions .
the unit serial number has been regis-
tered with us by the original purchaser.
the equipment or part that appears
defective is delivered to us or the authorized
repair
tion.
disclose a defective part or workmanship.
station we may designate for examina-
examination
guarantees to remedy any
cost
to the owner, ex-
is not caused by improper
does,
in our judgement,
defect
in material
This
warranty
curred,
above.
No person is authorized to assume for us any other liability in connection
with
GALAXY ELECTRONICS
necessary or desirable by us to improve the product, without advance
notice, or incurring any obligation to make like changes or improvements
in
units previously manufactured or sold.
All
last FM-210 has been manufectured by us.
All
quirements should be direct to:
and our
the sale of this or other of our products.
warranties expressed here are void and terminated one year after the
correspondence relating to warranty service or other service re-
does
not cover any transportation
sole
liability is repair of any
reserves the right to make any changes deemed
Galaxy
Attn:
10 South 34th St.
Council
Electronics
Customer Service Department
Bluffs, Iowa 51501
costs
defect,
that may be in-
for the period stated
27
Page 32
Page 33
^ i:
AMP
PN5A85
RF
QlOl
POWER
AMP
03
2N564I
MIXER
am
2N5485
Mill
I in IIK
107
IF
AMP
020I
2N3855
12 0V
~OUTPUT
OSC
Isf
DOUBLER
0406
2N5S63
GALAXY FM2I0
BLOCK DIAGRAM
FIG 7
VARICAP
MODULATOR
DV40I
MVI628
1st
IF
AMP
IVOISl
RECllfltR
D20l'2
IN270',
1404^1^
ACTIVE
FILTER
04052N49I6
UMITER
0206
2N2926Y
•V'l'l'
/".VI
•'(JIIUCH
GAl
0306
2N2926Y
CLIPPER
0403
2N49I6
•
/ /,•
I
2nd
LIMITER
0207
2N2926Y
Alio III
iHii
n/i
040I-2
2N2926Y's
MIC
AMP
niSCRlMlN
AJOR
It i'OI
(
Page 34
FIG
8
Page 35
FIG
9
Page 36
8,
3
2N3S&3
c.
8
7)
2N38SS
y^uLow
8
2N4A27
M - CoiLScroR - BoPY
B
2R363a
w 2NSA8S
Page 37
0X7
lim 69-003 90d
O
OOO
OO OO
O
Page 38
o o o o o o o
•K
no/
o
\0PT
TtOI
o
oo
PCB 200-60 CONVERTER
A
Page 39
0204 jS
T207
riOG^ TZOS
T204
R204
,
1
^^^2^^
^ (£I3) <^
2^
PCB 200-61
T20I
—
IF
Page 40
Page 41
Kl-
ANT
Jl
RELAY
Page 42
GAL
I
CHASSIS
NOTES:
I
AUswifchs shown in max.
2 *- Capacitors ore integral port of respective transformer
assembly. Hon-replaceable independently.
3 'S -
reactory
Selected values
CCW
position
Page 43
0202
2N3855
GALAXY
FM210
C2I8
SCHEMATIC DIAGRAM
I
'St
IF
i
MFD.
BY GALAXY ELECTRONICS
10
COUNCIL
30.34
BLUFFS,
ST.
IOWA
51501
Page 44
Page 45
9-9-'69L.RC.
9-l2.e9
L R.C
!,-30-e9L
R C
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