Panasonic RJ-3600 User manual

oRDER NO. RD 7704-1418
Servlce Manual
RJ-3600
REGEIVEI}JIl[. E $ grr Radio
4O-CHANNEL
CITIZENS BAND TRANSCEIVER
^*"".4.e ,% e dh
TSPECIFICATIONS
Power Source
Receiver Section
Frequency Range.
Sensitivity:
Selectivity:
Adjacent Channel Rejection:
Audio Distortion at 1 kHz:
Cross Modulation Rejection:
120 V (60 Hz), AC
13.8 V, DC
26.965 MHz to 27.405 MHz
Less than -6 dB (0.5 mV)
for 10 dB S/N at 1 kHz,3O/"
modulation
Bandwidth 5 kHz min. for 6 dB
55 dB
Less than 10"/o at2W
Better than 45 dB
Transmitter Section
Frequency Range:
Power Output at 1S.g V, DC:
Modulation:
Emission (Class D Operation):
Spurious Emission:
Frequency Tolerance:
Speaker:
Dimensions:
Weight:
lmpedance:
26.965 MHz to 27.4A5 MHz
4 W max.
Less than 1 00ol"
6A3
-60 dB
+0.005%
4" (10 cm) PM Dynamic
Speaker
13+"(Wide)x 5*"(Hish) x 8#"
(Deep) (337x 133x220 mm)
10 lb. 6 oz. (4.7 kg)
with Microphone
MicrophoneJack ........7000
Speaker . ........8O
EXTSpeakerJack .........8O
AntennaJack .....50O
Panasonic Company
Division of Matsushita Electric
Corporation ol America
One Panasonrc Way Secalcus. N J 07094
specifications are subject to change without notice for further improvement.
Matsushita Electric of Hawaii, lnc. Matsushita Etectric of Canada Ltd
32OWarakam,loRoad Honoluru Hawail96817 40Ronso^Or,veRerdareOnr MgW tRs
Panasonic.

IFEATURES
. 40 channels
. L.E.D. (Light Emitting Diode) Digital Channel Display
. Preset System for all zl0 channels
. RF Gain Control
. Two llluminated Meters (S/RF Power and VU/MOD)
. Squelch Control
. NB (Noise Blanking)/ANl (Automatic Noise Limiter)
. Antenna Warning lndicator
ICONTROLS AND THEIR FUNCTION
OPush-To-Talk Switch
To transmit, speak into the microphone while pressing this switch.
To receive, release it.
@Microphone
Speak in a normal voice, directly into the microphone. Hold the
microphone about an inch or two away from your mouth.
@Sfnf Power Meter
This meter has two functions: When receiving, it indicates the
relative strength of received signals in '"S" units. "S1 " indicates a
weak or distant station; a reading of "S9" would indicate a local
station. When transmitting, it indicates the relative RF power
output. A reading in the upper-portion of the meter indicates proper
transmission power.
@vu/MoD Meter
lndicates the relative strength of your voice into the microphone
during transmission (MOD), and the relative strength of the
speaker power output during reception (VU). While speaking into
the microphone, adjust the voice strength so that the pointer stays
in the green ranga,i.
@Antenna Warning (ANT WARN) lndicator
This indicator shows antenna matching condition.
@On-Air lndicator
Lights up when the Push-To-Talk Switch on the Microphone is in
the transmit mode.
OOigitat Channel Display Panel
lndicates which channel the unit is turned to for transmit and
recieve. But, it displays nothing when the Preset Channel Push-
switch is ON.
@Channel Selector
Selects any one of the 40 channels for transmit and receive.
@Microphone Socket
Plug the microphone into this socket, and secure the plug with the
captive screw-ring. This units is totally inoperable if the micro-
phone is disconnected.
Note: Do not us other microphones with dissimilar characteristics.
@ Preset Channel Pushswitch I
When pushing this pushswitch, the indicator on it lights up and
channel display disappears, you can then communicate on any
channel preset with the Preset Channel Selector, regardless of the
Channel Selector position.
. On-Air lndicator
. llluminated Preset Channel Pushswitch
. AC/DC Power Operation
. Positive, or Negative Ground Operation
- External Speaker Jack
. Dynamic Microphone with Push-To-Talk Switch
. 4" Diameter Self-Contained Speaker
@Noise Blanking (NB)/Automatic Noise Limiter (ANL) Push-
switch
Normally, leave the switch in the "OFF" position.
Set this switch in the "ON" position to reduce noise caused by
electric motors, ignition, lightning, etc. . . .
@On/Off Switch andtolume Control
Turn the control clockwise to turn the set on andto adiust the
receiver's sound level.
@Squelch Control
Use to cut background noise when no signals are being. The
degree of sensitivity to incoming signals is adjustable; a clock-
wise position provides maximum squelch, but in this position, it
may also cut out weak incoming signals.
@RF Gian Control
Adjust the receiver sensitivity for distortion{ree reception.
Normally, should be set in the MAX position. lf received signals are
too strong to understand, slowly rotate this control counter-
clockwise until clear sound is obtained.
@Preset ehannel Selector
Preselects any one of the 40 channels for the Preset Channel
operation. Simply turning the Preset Channel Pushswitch on
adjusts, the transceiver to a preselected channel at any time.
@Antenna Socket
Any 50 O antenna, designed for CB applications, may be con-
nected.
@External Speaker Jack
When an external 8 O speaker is connected, the built-in speaker is
automatically disconnected.
@DC Power Cord Connector
@DC Fuse Holder
Suppliedwitha2Afuse.
@AC Power Cord
@AG Fuse Holder
Suppliedwitha2Afuse.
@ACIDC Selctor Switch
@DC Power Cord
This unit is designed to operate on 1 3.8 V, DC. Connect this cord to
a 12 V battery, or other 12 V, DC power source. For a vehicle or
boat with a 24 V battery, connect the unit through a 24 V, DC to 12
V, DC converler, or to a 12 V section ot a24V electrical system.
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ITO REMOVE CABINET COVER
1 . Remove the ten (10) screws (nos. 1 ,2,3, 4,5, 6, 7, B, 9 & 10) for
the cabinet cover as shown in fig. 1.
2. Remove the four (4) screws (nos. 1, 2,3. & 4) for the cabinet
cover as shown in fig. 2.
3. Remove the four (4) screws (nos. 5, 6, 7, & 8) for the bottom
cover as shown in fig. 2.
4. Remove the cabinet COvers.
5. Pull out three (3) sockets, two (2) reads from chassis and fuse
holder.
6. To reassemble, reverse the above procedure.
ITO REMOVE FRONT PANEL ASSEMBLY
1. Remove the cabinet cover. (Refer to cabinet cover removal
instruction.)
2. Remove the four (4) control knobs for volume, squelch, RF gain
and selector, as shown in fig. 3.
3. Remove the five (5) screws (nos.1 ,2,3, 4 & 5) forthe front panet,
as shown in fig. 3.
4. Remove the six (6) screws (nos. 1, 2, 3, 4.5 & 6) for the front
panel, as shown in fig. 4.
5. Remove the two (2) screws (nos. 1 & 2) for the front panel as
shown in fig. 5.
6. Remove the Mic connector and speaker socket.
Remove the front panel.
7. To reassemble, reverse the above procedure.
rTO REMOVE ON AIR INDECATOR
1. Remove the front cover (Refer to front cover removal instruc-
tion.)
2. Bemove the two (2) screws (nos. 3 & 4) for the pC board, as
shown in fig. 5.
3. To remove ON AIR INDICATOR, unsolder lead, as shown
in fig. 5.
4. Pull out ON AIR |ND|CATOR to pC board.
5. To reassemble, reverse the above procedure and read the
following note.
Note: Mount the ON AIR IND|CATOR, as shown in fig. 6.
Screw No.3 Screw No.4
Unsolder lead
(Fig. 5)
,i
RECEIVEDJI.iL 2 9 1977
Screw No.1 Screw No.3 (CA'l 1 )
] Screw No.4 (CA11 )
Screw No.5 (CA11 )
t"'"* *'.u" ;"tj l'. ;,:;itl== q
ia
Screw No.9 (CA 1 i )
(Fig. 1)
Screw No.5
(xTN3+8C)
VOLUME
(Fig. 3)
Screw No.10 (CA11 )
Screw No.3 (CA11 r
Screw No
Screw No
Screw No.5 (CA1t r
Screw No.3
(xrN3+1oC) I
Screw No.4
(XTN3+ 8C)
(cAr 1 )
i lselector Knoo
RF GAIN Knoh
Screw No.6 (CA11 Sorew No.7 (CAt1
(Fis. 2)
Screw No.'l Screw No.2
(xTN3+8Ct (XTN3 l10c)
SQUELCH Knob
Knob
Serew No.1 Screw No.3
Screw No.2 Screw No.4
(xTN3+8C) (xTN3+8C)
Screw No.6
(xTN3+1oc)
Screw No.5
( xrN3+ 8C)
Screw No.2 (CA'1 1)
Screw No.B(C4191 | Screw No.4
cAelil
(XTN3+1
ON AIR INDICATOR
Short
(Fis. a)
RJ-3600 g

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TSWITCH POSITIONS FOR CHANNEL
IBLOCK DIAGRAM
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x O : ON, No mark: OFF.
VU/[,400
METER
ANT
CONNECTOF
lvlETER PROTECToR
LICHT
21 ch 22ch 23ch 24ch 25ch 26ch 27ch 28ch 29ch 30ch 31 ch 32ch 33ch 34ch 35ch 36ch 37ch 38ch 39ch 40ch
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37 66-38.1 oluHz BUFFER
2SC1359
DIRECT ONAL
COUPLER
2SC945
E nu-sooo
(Fig. 7)
DC 13.8V
AC 12OV

TR TR? TR3 TR. TRj TR 6
28C1 35S 8S(40 2SCB20 2SC02B 2SC829 2SC828
AGC RF AMP NB NB BUFFER 2SC828
SOUELCB
Schematic Diagram-Model RJ-3(
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lst Mlx SOUELCH Mlc AMP 2nd MLX 2SC82S 2SC02S 2SC828
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Notes:
'1 . 51 : Channel select switch in "1 CH" position.
2. S2-1, S2-2: Preset channel switch in "OFF" position.
3. 53: Preset channel select switch in "1 CH" position.
4. S4-1 , S4-2: ANL/NB switch in "OFF" position.
5. S5-1 , S5-2: Push to talk switch in "RECEIVE" position.
n 3E 39LQ n ljp
758596011
6. 56: AC-DC select switch in "DC" position.
7. 57: Power source switch in "off" position.
8. Battery current:
(Receiver) Nosignal ... .... -A
Maximumoutput .... . .. . 1.25A
(Transmitter) ........ .....1"1 1A
_ lltr jf tts lllttL-
9. DC volatge measuremer
from negative terminal r
( ).....Transmitter
f----l ....Receiver
Nomark....Trans mitter
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2SC828
*-r-,uFK-;
a Bil5/tn l?r,.sovt oD,<LK
I RJ-3600
ANT WARN
INDlCATOR
-,6 tt,JtiJta-
ilge measurements are taken with circuit tester 10 kO/V
€ative terminal of battery.
r.....Transmitter position
l....Receiver
k....Transmitter & Receiver position
2SCt 384 2SCl 098
2ot /g? tB2 t?I !L%
I na /7t t12 n3 /74. 175 t1L t?',7
152 t53t54t55 156 lil /s9
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2SC820
-.,l
AF AMP AF POWER AMP
ffir8,, Ii-il
afr o-o22 /.:
PUSH TO TALK
swlT cH
L____ _____-:___ ______,.t
TR! TRT TRJ
2SC028 2SC828 2SCt 226
AVR CURRENI LIMITER AVR
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ANT SAFETY NOTICE
THE SHADED AREA ON THIS SCHEMATIC DIAGRAM IN-
CORPORATES SPECIAL FEATURES IMPORTANT FOR
SAFETY.
WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANU-
FACTURES SPECIFIED PARTS BE USED FOR THE CRITI-
CAL COMPONENTS IN TNE SHADED AREAS OF THE
SCHEMATIC.
(
CHANNELSELECT SWITCH
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INDICAIOR INDICi.T0R
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RJ-3600 E

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Rr 5OO (8r R., lgKO (Ctf-.1
RECEIVED J U L29 19n
IALIGNMENT POINTS
PRESET CHANNEL SELECTOR
SQUELCH
L SELECTOR
ICONNECTTON DIAGRAMS
Receiving Condition
(Fig. 11)
(Fig. 12)
Recetvrng Condition
ANT 500
MIC JACK TOOO
(Fis.8)
DC IN
FUSE (2A) 13.8V
SET
ON-OFF CHANNEL
ON.OFF
POWER
SWITCH
and
VOLUME
fRr--6oo----1
l@*ffi]
I E*f-----l vottmete, i
(Fig. 1s)
(Fis. 21)
Receivrng Condition
(b)
(Fig.22)
Drrectronal Coupler
rJa.,|ttl!!lS{,t,on-' 11-fro";
0.033t F
(Fig.23)
Notes:
Directional coupler has the coupling co-
efficiency of 6 dB per octave.
You have to give the additonal attenua-
tion in proportion to the harmonics,
when using Directional Coupler.
Transmrtlrng Condr tron
tr I@
HF
Vallmete
or
RF
Voltmeter
(Fis. 15)
(Fis.20)
Transm rttrng Condt tton
High-Freqwncy Fuse
or Limiter
Beceiving Condition (a)
Transm rtturq Condt tron
Recervrng Condrtroo
Transmitting Condition
(Fig. 18)
Transm rttllg Condi tion Recervrrtg Condrtron
RJ-3600
@
(Fis. 14\
(Fis. 1e)
BJ-3600 e

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
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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

T TRANSMITTER ADJUSTMENT I1ECEIVEDJUL 2 9 1977
I
I
I
CONNECTION/CONDITION ADJUSTMENT REMARKS
TRANSMITTER OSCILLATOR
Connect Frequency counter:
@'side tolTF1-fl
O side to @
Set transceiver in transmitting
condition.
Be sure to connect RF watt-
rneter (Refer to fig. 14)
C37 (Trimmer) Adjust C37 until 10.695 MHz 1300 Hz is read on the frequency
counter.
Note: Do not connect O side of frequency @unter to metal
chassis. Use ground of circuit board.
RF
Connect RF voltmeter:
3 sideto @i|
Q side to [fl
Set transceiver in transmit-
ting condition.
Be sure to connect RF watt-
meter.
(Refer to fig. 15)
T5 (TX BF Coil)
T6 (TX RF Coil)
T7 (TX RF Coil)
T9 (TX RF Coil)
T10 (TX RF Coil)
L7 [X HF Coil)
110 (Tx RF Coil)
111 (Tx RF Coil)
1) Set to channel 20.
2) Pull out L1 1 to the top of bobbin, then lower 1* turns.
3) Adjust T5, T6, T7, and T9 for maximum RF voltmeter reading.
4) Adjust T5 (Turn to upper) for 1 W RF wattmeter readiJtg.
5) Adjust T10, L7 for maximum RF wattmeter reading.
6) Adlust T5 for maximum RF wattmeter reading.
7) Confirm that the difference between 1 ch and ulo ch should be less
than 0.4 W.
8) Adjust L10 (Turn to lower) for 3.8 W RF wattmeter reading, if power
output exceeds 3.8 W.
9) Adjust L10 lor maximum RF watlmeter reading, if power output up to
3.8 W.
TRANSM ISSION FREQUENCY CHECK
Connect frequency counter
through dummy antenna to
antenna socket.
(Refer to fig. 16)
Check that the transmitting frequency
standard. is within the following
Note: Frequency tolerance is within +600 Hz.
Channel Frequency Channel Frequency
1ch
2ch
3ch
4ch
5ch
6ch
7ch
8ch
9ch
10 ch
'11 ch
12 ch
13 ch
14 ch
15 ch
16 ch
'17 ch
18 ch
't9 ch
20 ch
26.965 MHz
26.975 MHz
26.985 MHz
27.005 MHz
27.015 MHz
27.025 MHz
27.035 MHz
27.055 MHz
27.065 MHz
27.075 MHz
27.085 MHz
27.105 Mtlz
27.115 MHz
27.125 MHz
27.135 MHz
27.155 MHz
27.165 MHz
27.175 MHz
27.185 MHz
27.205 MHz
21 ch
22 ch
23 ch
24 ch
25 ch
26 ch
27 ch
28 ch
29 ch
30 ch
31 ch
32 ch
33 ch
34 ch
35 ch
36 ch
37 ch
38 ch
39 ch
40 ch
27.215 MHz
27.225 MHz
27.255 MHz
27.235 MHz
27.211.5 MHz
27.265 MHz
27.275 MHz
27.285 MHz
27.295 MHz
27.305 MHz
27.315 MHz
27.325 MHz
27.335 MHz
27.345 MHz
27.355 MHz
27.365 MHz
27.375 MHz
27.385 MHz
27.395 MHz
27.405 MHz
RF POWER METER
Set transceiver in transmit-
ting condition.
Be sure to connect RF watt-
meter. (Refer to fig. 17)
R146 (Semi-fixed)
Adjust R1 46 so that the pointer of the meter stays as illustrated in
figure.
Pointer
RJ-3600 E

CONNECTIONiCONDITION ADJUSTMENT REMABKS
AVR
Set transceiver in transmit-
ting condition.
Be sure to connect BF
wattmeter. (Refer to fig. 18) R'l 71 (Semi-fixed) 1) Set AC/DC select switch to AC.
2) Adjust R1 71 so that transmittion out is same as DC qrrput
IRECETVER ADJUSTMENT
Y
Y
Y
Y
Y
2nd lF(455kHz)
Connect RF signal generator:
@ side tolTP2t
Q side to []
Set transceiver in receiving
condition. (Refer to fig. 19)
T11 (rFT)
112 (rFT)
T14 (rFT)
1) Set RF signal generator to 455 kHz (1 kHz 30% Mod).
2) Adlust T1 1 , T12, and T1 4 for maximum audio output.
3) Repeat above procedure.
Note: Do not connect Q side of RF signal generator to rnetal
chassis. Use ground of circuit board.
RF AND 1st lF(10.695MH2)
Connect BF signal generator
to antenna socket.
Set transceiver in receiving
condition.
(Refer to fig.20)
T1 (ANTCoil)
T2 (RF Coil)
T3 (RF Coil)
T8 (rFT)
1 ) Set to channel 1 0.
2) Set RF signal generator output to 27.075 MHz (l kHz 30% mod).
3) Pull out T2 and T3 to the top of bobbin.
4) Adjust T1 for maximum audio outut.
5) Adjust T2, T3 and T8 for maximum audro output.
6) Do not readjust coils after adjustment.
S-METER
Connect RF signal generator
to antenna socket.
Set transceiver in receiving
condition. (Refer to fig. 20)
R1 43 (Semi-fixed) 1) Set RF signal generator outprlt to 4O dB (100 pV), 1 kHz,
30% mod.
2) Adjust R1 43 so that S-meter indicates "9" scale.
SQU ELCH
Connect RF signal generator
to antenna socket.
Set transceiver in receiving
condition.
Set squelch control to maxi-
mum. (Refer to fig. 20)
R46 (Semi-fixed) 1) Set RF signal generator output to 40 dB (100 uV), 1 kHz, 30% mod.
2) Adjust R46 until squelch becomes open.
rTX MODULATION ADJUSTMENT
Connect DC voltmeter:
@ side to Fmil
O side to [E]
Set transceiver in receiving
condition (Refer to fig. 21)
R94 (SemFtixed) Adjust R94 until 0.75 V 10.02 V is read on the DC voltmeter.
Note: Do not connect O side of DC voltmeter to metal chassis.
Use ground of circuit board.
IVU.MODULATION METER ADJUSTMENT
1) Set to channel 20.
2) Set HF signal generator output to 60 dB (1 mV,), 'l kHz, 30% mod.
3) Adjust R1 63 so that meter indicates 1/2 red zone.
Connect RF signal generator
to antenna socket.
Set transceiver in receiving
condition.
(Refer to fig. 20)
R163 (Semi{ixed)
Red zone
E nu-sooo

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ISPURIOUS EMISSION CHECK
IINTEGRATED CTRCUITS,TRANSTSTORS AND DIODES
D+t D+o Dr + Dr s 1fi[ Dsz
.D
lCz
D:e Deo
CONNECTION/CONDITION ADJUSTMENT REMARKS
Set transceiver in receiving
condition. (Heter to fig. 22)
1) Connect RF signal generator to spectrum analyzer, as shown in Fig.
22 (al.
2) When the impedance of signal generator output is 50 Q, set signal
generator output to 56 dB (2 nW).
3) Confirm standard level on the spectrum analyzer.
4) Then @nnect transceiver to Spectrum analyzer as shown in Fig.22
(b).
5) Conlirm that spurious emission should be less than standard level.
Note: Do not transmit while checklng receiving spurious.
f, I-- Spectrum analyzer standard level
Fundamental frequency
Set transceiver in transmit-
ting condition.
(Refer to fig. 23)
'l ) Confirm that spurious should be rnore than 60 dB.
It
sll ^
I
(Transmission) Spurious emission
Sisnal I
?
Fundamental frequency + Harmonic
vDr Dzs Dic Dzs Dzz Dzt
(Fis.24)
RJ.3600 [E

ITRANSFORMERS, COILS, CERAMIC FILTERS, CRYSTALS,
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