J.I.L SX-200 User manual
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SERVICE MANUAL
SCANNING MONITOR RECEIVER
VHF Band
26-57.995 MHz
58-88 MHz
108-180 MHz
UHF Band
380-514 MHz
MODEL : SX-200 (N)
We reserve the right to alter component or specification for further improvement without advance notice.
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SCANNING MONITOR RECEIVER
CD C3
15-16
CD
SCAN
8)
POWER
cLJ
C
7
4:11=
FINE TUNING
SQUELCH
VOLUME
1 7
(16
)
Fig. 1
-2-
GENERAL DESCRIPTION
This scanning monitor receiver utilizes a miniature computer-micro-processor with 16 channels in over 32,000 different
frequencies such as Police, Ambulance, Rescue, Fire, Paramedic, Government Services, Taxis, etc. which can be monitored,
searched, scanned, to memorize without adding expensive crystals. Unknown frequencies can be searched and locked-in.
Frequencies can be easily selected by the keyboard operation. An accurate digital clock which displays time is built-in.
Amateur bands in VHF and UHF range, T-Band can also be received.
SPECI FICATIONS
1.
Type
2.
Frequency Range
3.
Sensitivity
4.
Selectivity
5.
Audio Output
6.
External Speaker Impedance
7.
Power Supply
8.
Antenna Impedance
9.
Frequency Stability
10.
Clock Error
11.
Memory Channel
12.
Scan Rate
13.
Seek Rate
14.
Scan Delay Time
15.
REC Output
16.
Intermediate Frequency
17.
S/N
18.
Squelch Sensitivity
19.
Distortion
20.
Scan Stop Sensitivity
CONTROLS AND FUNCTIONS
CONTROL PANEL (FRONT VIEW)
FM & AM
a)
26.000
57.995 MHz Freq. Space . . . 5 KHz
b)
58.000' 88.000 MHz
If
. .
12.5 KHz
c)
108.000 — 180.000 MHz
It
. . .
5 KHz
d)
380.000 — 514.000 MHz
fl
.
12.5 KHz
FM.
. a) 26.000 — 180.000 MHz 0.4uV S/N 12 db
b) 380.000 514.000 MHz 1.0uV S/N 12 db
AM.. . a) 26.000 180.000 MHz 1.0uV S/N 10 db
b) 380.000 — 514.000 MHz 2.0uV S/N 10 db
FM
. More than 60 db at
-
±25 KHz
AM. . . More than 60 db at
-
±10 KHz
2 watts (8 ohm)
Dey.
5 KHz
4 — 8 ohms
AC Adaptor (Output DC 12 V) or DC 12 V Power Supply
50
75 ohms
FM. . . 150 Hz 1.7 KHz (-6 db)
AM. . . 300 Hz'-' 1.6 KHz (-6 db)
Within 10 sec./month
16 Channels
Fast
8 Channels/sec.
Slow
4 Channels/sec.
Fast
10 Channels/sec.
Slow
5 Channels/sec.
0/
2
/
4
sec.
0.4 V (MAX.)
Output Impedance . . . . 8 ohms
FM. . . 455 KHz
AM. . . 455 KHz
FM/AM . ..... More than 60 db at —30 db
Less than 10 db
Less than 2.5% at
Dey.
5 KHz 0.5 W (8 ohm)
15 db
1.
Keyboard Frequency Selector Buttons (1 — 0)
Select any frequency in any of three bands — VHF Low, VHF High, or UHF (including the
T
-Band).
2.
Stop Button & Dot (•) • ST
Stops UP or DOWN Seek or Scan A or B function. Places decimal point in selected frequency.
3.
Limit Write Button LIM
Sets upper and lower frequencies of search range.
4.
Frequency Entry Button
ENT
Is finally pushed to enter frequency.
5 Speed Change Button SP
Controls speed variation for UP or DOWN Seek Function.
6.
Frequency Display Button FR
Interrupts constant time display to show frequency being received.
7.
Memory Read/Display Keys M1 — M16
Programs your own most-listened to frequencies in any of the three bands. Retrieve any frequency desired when corre-
sponding button is depressed.
8.
Clock Display and Adjustment Button CK
Brilliant digital LED clock — accurate to the second. Retrieve and adjust time.
9.
Up Button UP
Starts seeking upwards, moving through frequencies in increments of 5 KHz or 12.5 KHz and stopping on a transmitting
channel.
10.
DOWN Button DOWN
Starts seeking downwards, moving through frequencies in decrements of 5 KHz or 12.5 KHz and stopping on a transmitting
channel.
11.
SCAN-A Button
Scans the 16 memory channels (M1
—
M16) stopping on a transmitting channel.
12.
SCAN-B Button
Scans selected priority channels within the 16 memory channels, stopping on a transmitting channel.
13.
FM-AM Switch
Selects modulation of frequency to receive, i.e., Amplitude (AM) or Frequency (FM). If desired AM typed modulation for
receiving, push this button. If FM typed required, unlock it.
14.
Power ON/OFF Switch
15.
Volume Control
Adjusts sound level as desired.
16.
Squelch Control
Adjusts to block out unwanted noise.
17.
Fine Tuning
Small frequency adjustment such kind of figures as 5 KHz is made.
18.
Scan Write and Minute Adjustment Button SWM
Programs priority memory channels for SCAN-B function and minute.
19.
Memory Write and Hour Adjustment Button MW• H
Programs desired frequencies into memory channels for SCAN-A function and hour.
20.
Digital Display Panel
Shows 5-second readout of selected frequencies. Registers passing frequencies during SCAN or UP/DOWN SEEK modes.
Shows constant time display (except during SCAN or SEEK modes). Shows time readout when CK button is depressed.
SERIAL NO.
DC13.8V
+ —.~-- -
BATTERY HOUSING
FOR
MEMORY BACK-UP
Relay capacity:
Less than 200mA
+
DC15V
SR K type
+
S R 1 K type
AUX
GND
2SA typed transistor which has
current capacity more than 1A.
DC 15 V
Relay will operate when scanning stops.
—4 —
REAR VIEW
OCD ED® 00
00
1.
Dimmer Control Switch
Changes light and darkness (ON) of display.
2.
Scan Delay Control
Delays resumption of scanning during a pause in transmission. Moving the slide switch to the positions 1, 2 and 3 varies the
holding time on a frequency for zero second (Position 1), 2 seconds (Position 2) and 4 seconds (Position 3) respectively.
3.
Clock Switch
For only CLOCK (Time) display desired, slide this switch to ON. Under this condition that the POWER switch is off, time
always displays. If this operation required, CLOCK switch shall be set to ON position before installation of this unit in a car.
4.
Squelch Operation
The SX-200 uses some very unique squelch circuitry which allows THREE DIFFERENT MODES OF SQUELCH
operation. These modes are selectable using the rear mounted slide switch marked "SQ".
POSITION 1. Allows for standard "CARRIER" operated squelch ie. Scanning is stopped and Audio is opened by
the carrier of the signal received.
POSITION 2. Scanning is stopped by the received signals carrier but the AUDIO is SILENCED until modulation
(voice) is put on the carrier (for monitoring telephone channels etc.)
POSITION 3. Scanning will not stop until a carrier with modulation signal (signal with voice) is received. (used when
set is in the SEARCH mode.)
Notes: 1. For SQ 1. 2. & 3., in case that squelch volume control in the front panel is positioned at the rightside (FM noise
comes out.), frequency will not move in seek or scan modes as far as noise is not blocked out.
2. The condition of
AUX
Control output will be changed by SQ switch's positions. For SQ 1. or 2., when received
wave,
AUX
terminal will become open electrically. For SQ 3. position,
AUX
terminal will not become open
without sound even though a wave received.
In the event FM noise coming out,
AUX
control terminal will become open for all the position, SQ 1. 2. 3.
5.
Recording Output REC
Connect the input of open reel type or cassette tape deck to record.
6.
Output for External Speaker (Optional).
7.
Local/Distance Switch
This switch allows for optimum reception in both strong and weak signal areas. It is normally set in the DISTANCE (DX)
position for maximum sensitivity. In strong signal areas, stations may interfere with each other. To minimize these
interferences, move this switch to LO for LOCAL position.
8.
Connection for External Antenna
9.
AUX
Control Output
AUX
On/Off Control of auxiliary equipment (Tape Recorder) using relay. RATING of
AUX
Cont. terminal: Max. 15 V, Max.
200 mA. The relay satisfying the above rating should be used.
Relay capacity:
More than 200mA
Fig. 2
AUX
GND
10.
Ground Connection GND
11.
Connection for Power Cord.
ANTENNA
FIBER
WASHER M4
TAPPING SCREW
-
-
M5X 16 \
EXTERNAL
SPEAKER PLUG
DC 12V PLUG'
(or
AC 120/DC 12V
CONVERTER PLUG
GROUND LEAD WIRE
MOUNTING BRACKET
BATTERY
COMPARTMENT
ANTENNA LEAD
SCREW
M4 X 6
1
~
-->
--->
2
5
ENT
INSTALLATION
Fig. 3
NOTES: BATTERY INSTALLATION: Before turning your SX-200 on make certain that you install the two SIZE AA
BATTERIES supplied in the battery housing on the rear panel being careful to put them in with the correct polarity
(Polarity is marked on base of plastic holder.) The batteries are used for memory backup.
SETTING UP YOUR UNIT
1.
Connect the power supply, using either AC cord, if the unit is to be used as a base station, or the DC connector for
mobile operation. The AC cord includes a DC/AC power adaptor.
2.
Turn on Power Switch (#14) by push button in. TIME readout A 0-00 will appear in the Display Panel (#20).
3.
Install whip antenna by screwing in clockwise into the connecting hole on top of the unit. The 3-section telescoping
antenna supplied with your unit extends from approximately 4 inches to approximately 22 inches for best reception in
every band. (The lower the band, the longer the antenna should be extended, and vice versa.)
4.
When the power switch (POWER) turns off once and then it turns on again, Time or frequency readout will appear. But
if receiving is desired, be certain to push
FR
button.
OPERATION OF SCANNER
1. To select desired frequency
Depress button in the following sequence on the key board.
Examples: 7 -'
8 —> •ST
--> 8 - 7 ->
Display shows 78.887 (Programmed)
4
---> 7
--->
• ST
->
Display shows 470.312 (Programmed)
Note: 4 digits after the point is available for display only. But when entry key ENT is pushed (actually MUST be pushed
to enter the frequency), fourth digit after the point does not display as the above. This means frequency always
comes to a very close one that y
-
ou
want to catch. In other words, CUT-OFF or RAISE of FRACTIONS has
automatically and suitably been made by our peculiar computer design according to the frequency sapce, 12.5 KHz
or 5 KHz. For 5 KHz space, third digit after the point displays always 5 when pushed ENT button. Therefore,
further small adjustment required is made by FINE TUNING in the front panel for dither 12.5 KHz or 5 KHz.
ENT
twice and all other buttons once otherwise scan memory may not write correctly.
J
.5T
2. To search or seek (Up or Down) a station
After frequency is entered, depress UP or DOWN seek button to start search. Squelch control must be adjusted to just
above noise level to activate search. Channels M1 through M16 can be searched by depressing individual channel buttons and
then the UP or DOWN seek button accordingly. Frequencies will be searched in increments or decrements of 5 KHz or
12.5 KHz according to bands.
If exact frequency desired is unknown, enter a frequency a few KHz lower to begin search. For example, if the frequency
desired is approximately 470.015, start the search frequency at 469.000 or lower.
SP
key again.
•
ST
A) To enter a frequency being received while seeking, depress the each button according to the order of
•ST
M
B) If you want to enter a frequency which you have already known, depress button in the following sequence; For example,
4
--> 7 --> 0 ---> • ST --> 0 —> 2 -->
5
--> E N T -->
MW
-->
M
470.025 (Programmed into memory bank)
If there is more than a 5-second delay in entering the frequency, time will be automatically displayed and you must
re-program. If the frequency that was selected is not desired, to reprogram, simply enter new frequency as outlined above.
4.
Recall
Once frequency has been programmed, for example, 156.175 is entered into channel M3, by depressing M3, the frequency
will be recalled.
5.
Scanning
"SCAN
-
A"
To use
"SCAN
-
A"
mode, when this button is depressed, all channels from M1 through M16 will be scanned repeatedly until
a signal is received. To stop scan, depress
•ST
key. The Scan Delay control located in the rear plate of the unit is used to
delay resumption of scanning during a pause in transmission. Moving the slide switch to the positions 1, 2 and 3 varies the
holding time on a frequency for zero second (Position 1), 2 seconds (Position 2) and 4 seconds (Position 3) respectively.
6.
Scanning
"SCAN
-
B"
"SCAN
-
B"
is a programmable scan mode. It allows the SX-200 to scan any combination of its 16 memory channels.
(i.e. you may scan e.g. ch. 3 and 5 or 2, 5 and 10 etc.) Programming of
"SCAN
-
B"
is quite simple, for example we wish to
scan only channels 1, 2, 15 and 16. The following operation is performed:-
PUSH
•ST
TWICE SWM -->
15 -> 16
Be certain to push
7. "FR" key
When TIME is being displayed and you want to see what frequency is being received, press
FR
key to activate display.
8.
."CK
"H" & "NI"keys
To enter time, for example: for 10.30 AM, the following keys must be depressed in sequence. If the display is showing
A 6-15 (A: a.m. & P: p.m.), push
CK
key first, push
H
key 4 times and push
CK
key and push M key 15 times.
For 10:30 PM, push also
CK
key, push
H
key 16 times (P and 10 will appear.) and push
CK
key, and push
n
key
15 times.
9. Limit Write Key, "LIM"
To enter upper and lower frequency of search range, the following keys must be depressed in sequence:
Upper frequency desired, for example:
470.000 -* ENT --> LIM
-
Lower frequency desired, for example:
-~
Now, the search between 450.000 and 470.000 is limitedly made by depressing UP or DOWN key.
To retrieve this limitter, the following operation shall be made.
ENT -> LIM
514.000 -->
CAUTION
1.
When the frequency selection becomes inoperative by some entry mistakes during memory writing or scanning ("E"
(ERROR) does not appear on the display), unplug the power supply cord once, leaving power switch on and then plug it
again to clear.
2.
If you attempt to program a frequency that is outside the tuning range of the receiver, an
"E"
(ERROR) appears on
the display. If this happens, simply enter a new frequency.
3.
Under the condition of:
Clock switch ---- ON
Power switch ----> OFF
--~ Time displays continuously.
But if the power supply cord is disconnected and then re-connected, 89APL-E will appear in the display as error.
To retrieve this error, set the clock switch to "OFF" position and frequency readout will appear. Meanwhile if time
readout is desired, set the clock switch to "ON" position.
—6—
To increase seek speed, depress
To stop seek or scan, depress
3. To select or enter a frequency into
SP
key. To decrease speed, depress
key.
memory bank .... .
--÷
ENT
~
MWH
SCAN B
450.000
ENT
26.000
ENT
ALIGNMENT PROCEDURE
PLL ADJUSTMENT
1.
Sub VCO Frequency Adjustment (110.000 MHz)
Receive 108.000 MHz. Connect the frequency counter with Pin No.13 of IC103 (S042P) and adjust the trimmer (TC-102)
for 110.000 MHz
-
±100 H z .
2.
VHF Local Frequency Adjustment
Set the Fine Tuning volume to the center position and connect the frequency counter with VC01 of Tuner P.C. Board.
Receive Freq.
I F
Local Freq.
Adjustment
26.000 MHz
+10.7
36.700
TC-103
44.995
+10.7
55.695
45.000
+10.7
55.700
57.995
+10.7
68.695
58.000
-
10.7
47.300
TC-104
88.000
-
10.7
77.300
3.
VHF (High), UHF Local Frequency Adjustment
Connect the frequency counter with VCO2 of Tuner P.C. Board.
Receive Freq.
I F
Local Freq.
Adjustment
108.000 MHz
+10.7
118.700
139.995
+10.7
150.695
140.000
+10.7
150.700
180.000
+10.7
190.700
380.000
(380 + 10.7)/3
130.233
TC-105
514.000
(514 + 10.7)/3
174.900
VCO ADJUSTMENT
Apparatus used: Digital Multi-Tester (DC Range)
Connection Method: Connect with VC line of VCO P.C. Board.
1.
26.000 MHz 44.995 MHz
Receive Freq.
Adjustment
Voltage adjusted & allowance
26.000 MHz
L204
0.65V±0.05V
44.995 MHz
TC-204
12.1
±0.1
2.
45.000 MHz 57.995 MHz
45.000 MHz
L205
3.7 V ±0.1 V
57.995 MHz
TC-205
11.3
±0.1
3.
58.000 MHz 88.000 MHz
58.000MHz
L206
0.6V ±0.05V
88.000 MHz
TC-206
12.0
±0.1
4.
108.000 MHz 139.995 MHz
108.000 MHz
L203
0.58 V ±0.1 V
139.995 MHz
TC-203
9.65 ±0.2
5.
140.000 MHz 180.000 MHz
140.000 MHz
L202
1.3 V +0.1/-0.05 V
180.000 MHz
TC-202
13.0
±0.1
6.
380.000 MHz 514.000 M H z
380.000 MHz
L201
0.65V±0.05V
514.000 MHz
TC-201
12.4
±0.1
Remarks: Voltage of low frequency shall be adjusted at L-000 (Coils) first, then adjust voltage of high frequency by
TC-000 (Trimmers).
If voltage of low frdquency varies after voltage adjustment of high frequency, several time adjustment is required.
OUT
o
o
o
o
FM DEV. 5 KHz
SSG
26-514MHz
55-75
SZ
MODEL
SX-200
MILLI VOLT METER
EXT
ANT. JACK
(TO 16 PIN OF
1
2.2K
\IC101 MC3357
0.01u
GENE-SCOPE
IN
(TO 9 PIN OF IC101 MC3357)
8 OHM DUMMY LOAD
SSG 10.7 MHz
DEV. 2 KHz
RECEIVER ADJUSTMENT
Apparatus used: SSG 26 MHz 514 MHz (This should be available for both AM and FM modulation.)
SSG 10.7 MHz, IF GENE-SCOPE, OSCILLOSCOPE, MILLI VOLT METER.
1. Connection Diagram
OSCI LLO-SCOPE
2. IF Adjustment
a.
Connect SSG (10.7 MHz) (Input 55 db) with Pin No.16 of IC101 (MC3357).
b.
Adjust I FT101 and TC101 to make the wave form of oscilloscope maximum.
3. "S" Curve Adjustment
a.
Connect "OUT" of Genescope with Pin No.9 of IC101 (MC3357).
b.
Adjust I FT102 to make the wave form symmetrical. (For both upper and lower sides.)
TUNER ADJUSTMENT
1. a) Set LO/DX switch to DX position.
b)
Set Squelch volume to the right side.
c)
Set Fine Tuning to the center position.
d)
Set Volume control to the center position.
e)
Enter a frequency into memory bank which is going to adjust.
f)
Set SG for 5 KHz FM deviation.
Enter the following frequencies into memory bank respectively. To enter a frequency, depress the each button according to
the order of, for example
2
--
6
-->
• ST -±
0
-*
0
-
0
-
ENT
MW
M1
26.000 MHz
M2
45.000 MHz
M4
108.000 MHz
M5
140.000 MHz
M9
44.995 MHz
M10
57.995 MHz
M12
139.995 MHz
M13
180.000 MHz
M3
58.000 MHz
M6
380.000 MHz
M11
88.000 M H z
M14
514.000 MHz
Hereafter, entered frequencies into memory bank will be called as M number respectively.
2. a) Set SG for 58.000 MHz and push the memory button M3. Adjust L14 and L18 for the wave form to become maximum.
Set SG for 88.000 MHz and push the memory button M11 and make sure there's no sensitivity difference.
b)
Set SG for 45.000 MHz and push the memory button M2. Adjust L15 and L19 for the wave form to become maximum.
Set SG for 57.995 MHz and push the memory button M10 and make sure there's no sensitivity difference.
c)
Set SG for 26.000 MHz and push the memory button Ml. Adjust L16 and L20 for the wave form to become maximum.
Set SG for 44.995 MHz and push the memory button M9 and make sure there's no sensitivity difference.
d)
Set SG for 140.000 MHz and push the memory button M5. Adjust L8, L9 and L11 for the wave form to become
maximum.
Set SG for 180.000 MHz and push the memory button M13 and make sure there's no sensitivity difference.
- 9 -
M1
e)
Set SG for 108.000 MHz and push the memory button M4. Adjust L7, L10 and L12 for the wave form to become
maximum.
Set SG for 139.995 MHz and push the memory button M12 and make sure there's no sensitivity difference.
f)
Set SG for 380.000 MHz and push the memory button M6. Adjust TC-1, TC-2 and TC-3 for the wave to become
maximum.
Set SG for 450.000 MHz and adjust L2.
Set SG for 514.000 MHz and push the memory button M14 and make sure there's no sensitivity difference.
Remarks: If there is sensitivity difference in 380.000 MHz and 514 MHz of UHF, re-adjust the below method.
a. Adjustment of L1 and TC-1
It is the important point to adjust L1 to make the trimmer's positions for 380 MHz and 514 MHz in the same
position.
TRIMMER POSITIONS
e
or
64
or
or
or
or
Best
Make L value
Make L value
position
(coil) small.
(coil) big.
b.
Adjustment of L3 and TC-2 combination.
Same as a.
c.
Adjustment of L4 and TC-3 combination.
Same as a.
3. AM Gain Adjustment
a) Push
FM-AM
switch for AM position.
b)
Receive 125 MHz. (Set SG input for 125 MHz.)
c)
Set SG input for —10 db and adjust VR102 to make signal noise maximum.
4. Fine Tuning
Receive 26.000 MHz and make sure of ±5 KHz variation, moving the fine tuning control from left side to right side.
ACCESSORY CIRCUITS ADJUSTMENT
1. Center Detector Adjustment
a.
Set SG for 140.000 MHz (Input 60 db)
b.
Receive 140.000 MHz
c.
Connect Multi-Tester with Pin No.6 of IC201 (uPC324).
d.
Adjust the middle voltage by VR202.
(BETWEEN the voltage that the wave form disappears when VR202 is rotated clockwise AND the voltage that
the waveform disappears when rotated counterclockwise.)
e.
Move the frequency of SG from 140.000 MHz to 140.005 MHz gradually and make sure that the waveform disappears.
(140.005 MHz ±2 KHz)
Then, move the frequency of SG from 140.005 MHz to 139.995 MHz as well and make sure that the waveform
disappears. (139.995 MHz
±2
KHz)
2. Squelch Sensitivity Adjustment
a.
"SQ" change switch in the rear panel shall be positioned to SQ1.
b.
Receive 26.000 MHz.
c.
Slide the squelch volume gradually to the left side, and stop sliding at the place where the noise disappeared.
d.
Set SG for 26.000 MHz and put 10 db (Input) in and make sure that the squelch becomes open.
e.
Make sure of all the channel.
0 4 V (±0.1 V)
MW
->
-->
0
•
ST
d. Output voltage
10. Memory method
Example:
->
ENT
->
—>J
ml 1
3. Audio Squelch Adjustment
a.
Set "SQ" change switch in the rear panel to SQ2.
b.
Set SG for 26.000 MHz (Input: 60 db) and receive.
c.
Set FM deviation 0.5 KHz.
d.
Rotate the screw of VR105 (100 ohms) clockwise until the waveform disappears.
e.
Increasing deviation, make sure that the waveform appears at 1 KHz — 2 KHz.
f.
Set "SQ" change switch in the rear panel to SQ3.
g.
Slide the squelch volume to the left side.
h.
Set SG for 30.000 MHz, deviation 5 KHz (Input: 60 db)
i.
Set the frequency for 29.950 MHz on the SX-200 unit and push "UP" button.
J. Make sure that the frequency stops at 30.000 MHz.
k. Decreasing deviation, make sure that the waveform disappears at 0.5 KHz — 0 KHz and seeks.
Remarks:
Dey.
0 KHz — 0.5 KHz
Audio Squelch — ON
Dey.
1 KHz — 2 KHz
Audio Squelch — OFF
4. Scan Delay Time
a.
Connect Multi-Tester with the anode side of D101 (IS953) in the PLL P.C. Board and adjust VR105 (100K) for
0.65 V ±0.1/-0V.
b.
Set "SCAN CONT" switch in the rear panel to 1 position.
c.
Seeking frequencies, stop at an optional frequency.
d.
When the frequency of SG is moved, make sure that the seeking is made within approximately 2 seconds.
e.
Set "SCAN CONT" switch to 2 position.
f.
As well as b. operation, make sure that the seeking is made within about 4 seconds.
5. LO/DX
a.
Receive 26.000 MHz and set LO/DX switch to DX position.
b.
Set SG input for 1 uV and output level for 1 V.
c.
Change LO/DX switch to LO position, and set for —6 — —7 db.
6. DIMMER
When the dimmer switch is ON, make sure that the display will be dark.
7. CLOCK
a.
When the clock switch is ON, make sure that the display will show the TIME.
b.
Even the power switch in the front panel is off, the TIME must be displayed.
8.
AUX
a.
Connect the tester with
AUX.
(OHM range)
b.
Short at scanning or seeking (DC resistor: 0.5 l
-
±0.1)
c.
Must be open at stop condition of scan or seek.
9. REC
a.
Receive 26.000 MHz
(Dey.
5 KHz)
b.
Connect Milli-Volt Meter (Load: 10 K ohm) with REC jack.
c.
Make the volume in the maximum position.
a.
Enter optional frequencies into memory bank from M1 to M16.
b.
Push the buttons from M1 to M16 again and make sure the said frequencies are the entered ones into memory.
c.
Put the batteries (1.5 V X 2) in the battery box in the rear panel.
d.
Disconnect the power supply (DC 13.8 V) and then connect it again, and make sure the memory entered.
11. SCAN A
a.
Enter optional frequencies into memory bank from M1 to M16.
b.
Close the squelch.
c.
Push SCAN A button.
d.
Make sure that the scanning operation will be repeated from M1 to M16.
e.
Set SG for optional frequency or enter a frequency into memory beforehand, make sure that the frequency will stop.
f.
When
'ST
button is pushed, make sure the scanning will stop.
12. SCAN B
a. Enter optional frequencies into memory bank from M1 to M16.
b.
Push
'ST
SW
--
M1
M9 --> M3 --> M16
SCAN B
accordingly.
c.
Make sure that the scanning will be made from M1 to M9, M3 and M16 in order.
d.
Push
'ST
button and make sure the scanning will stop.
-11-
13. LIM
a.
Push the buttons according to the order of;
---> 6 j->
•ST
0
0
▪
0
b.
Make sure that the seeking will be made between 26.000 MHz and 30.000 MHz.
14. CK
a. Push CK button and then
MW H
button.
b.
Make sure that HOUR figure will be increased, whenever pushing miN H button every one time.
c.
Make sure that MINUTE figure will be increased whenever pushing
SW M
button every one time.
MW H
button or, SW H button is kept pushing respectively, figure must be forwarded quickly.
button is pushed quickly, the display must be changed from AM to PM (or PM to AM).
VOLTAGES OF EACH IC & TRANSISTORS AND OTHERS
1. PLL P.C. BOARD
IC101
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
MC3357
VOLTAGE
6.0
5.5
6.1
6.1
1.0 1.0
1.0
6.1
2.4
1.9
2.2
0.9
0 0
0
2.0
1C102
PIN, NO
,
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LA1201
VOLTAGE
1.9
3.0
0.7
2.0
1.2
0.5
0
2.2
0.7
2.0
0
2.0
3.4
6.1
1C103
S0429
f (MHz)
PIN, NO
1
-
2
3
4
5
6
7
8
9
10
11
12
13
14
26,000-88,000
VOLTAGE
0
0 0
0
0
0 0 0
0
0 0
0
0
0
108,000-514,000
0
4.8
4.7
0
5.0
0
2.8
2.8
0
0.7
1.4
0.9
1.4
0
ICI 04
SP8629
f (MHz)
PIN, NO
1
2
3
4
5
6
7
8
26,000-44,995
'
VOLTAGE
5.0
0
0
0
0
2.9
2.8
5.0
45,000-57,995
5.0
0 0
0
0
2.9
2.8
5.0
58,000-88,000
5.0
0
0
0
0
2.9
2.9
5.0
108,000-139,995
5.0
1.8
0
0
0
2.9
2.8
5.0
140,000-180,000
5.0
1.8
0
0
0
2.9
2.8
5.0
380,000-514,000
5.0
1.8
0
0
0
2.9
2.8
5.0
IC105
uPD2819
f (MHz)
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
26,000-44,995
VOLTAGE
5.4
-
2.6
1.4
1.1
4.0
0 0
2.7
0.15
0
17.15
0
2.7
0
0
0
0
45,000-57,995
5.4
-
2.6
1.4
1.1
4.0
0 0
2.7
0.15
0
17.15
0
2.7
0
0
0
0
'
58,000-88,000
5.4
2.6
1.4
1.1
4.0
0 0
2.7
0.15
0
17.15
0
2.7
0
0
0 0
108,000-139,995
5.4
-
2.6
1.4
1.1
4.0
5.5
2.4
2.7
0.15
1.9
2.0
0
2.6
0
0
0 0
140,000-180,000
' 5.4
-
2.6
1.4
1.1
- 4.0
5.5
2.4
2.7
0.15
1.9
8.6
0
2.6
0
0 0 0
380,000-514,000
5.4
-
2.6
1.4
1.1
4.0
5.5
2.4
2.7
0.15
1.9
5.1
0
2.6
0
0
0 0
Ci 06
uPB551
f (MHz)
PIN, NO
1
2
3
4
5
6
7
8
'
26,000-44,995
VOLTAGE
5.0
..
3.0
0
0
2.2
0.2
5.0
5.0
45,000-57,995
5.0
3.0
0
0
2.2
0.2
5.0
5.0
58,000-88,000
5.0
3.0
0
0
2.2
0.2
5.0
0
108,000-139,995
5.0
3.0
0
0
2.2
0.2
5.0 5.0
140,000-180,000
5.0
3.0
0
0
2.2
0.2
5.0 5.0
380,000-514,000
5.0
3.0
0
0
2.2
0.2
5.0
5.0
-12-
2
ENT
->
LIM
--->
3
--->
0
->
•
ST
->
0
->
0
--->
0
--->
ENT
UP
d.
When
e.
When
15. SP
a.
Set squelch volume all the way to the left side position.
b.
Push UP or DOWN button for seeking.
c.
Push
SP
button. Then make sure the seeking speed becomes fast.
d.
Push
SP
button again and make sure that the speed returns to normal one.
MW H
1C107
74L5162
H 5V
L OV
f (MHz)
PIN, NO
1
2
DATA INPUTS
7
8
9
10
DATE OUTPUTS
15
16
3
4
5
6
11
12
13
14
26,000
VOLTAGE
1.2
2.0
H
L
L
H
0.2
0
4.2
5.0
4.2
5.0
44,995
1.9
LLLL
45,000
1.9
H
L
L
H
57,995
1.9
L L
L
L
58,000
2.1
H
L
H
L
88,000
2.0
H
L
H
108,000
2.4
H
L L
H
139,995
2.0L
L
L
L
140,000
2.2
H
L
LH
180,000
1.9
H
L
LH
380,000
2.4
HHLL
514,000
Y
1.9
HHLL
,-,
Y Y
`,
Y
4,
1C108
uP D4015
H
10V
L
OV
f (MHz)
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
26,000
VOLTAGE
0
L
L
LH
0
L
00H
LH
L
0
010
44,995
L
L
L
L L
L
L
H
L
45,000
L
L
L
H H H
L
H
L
57,995
L
L
L L L L L
H
L
58,000
L
H
L
H
L
L
H H
L
88,000
L
H
L
H
L
L
H
H
L
108,000
L
L
L
H
L
H
L
LH
139,995
L L L
L
L L
L
LH
140,000
H
L L
H
H
H
L L
H
180,000
H
L
L
H
H
H
L
LH
380,000
L
L
H
H
L
L
LHH
514,000
v
L
LHH
v
L
,,
L
LHH
1C109
uP D4011
H
10V
L
OV
f (MHz)
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
26,000
VOLTAGE
L
LHH
L L
OHH
LHH
L
10
44,995
L
L
HHL
L
HH
L
HH
L
45,000
HH
LHL
L
HH
LHH
L
57,995
H
H
L
H
L
L
HH
LHH
L
58,000
L
L
H
LHH
LHHHH
L
88,000
L L
H
LHH
LHHHH
L
. 108,000
L
LHHL
L
HH
L
H
L
H
139,995
L
LHHL
L
HH
L
H
L
H
140,000
HHLHL
L
HH
L
H
L
H
180,000
HH
LHL
L
H H
L
H
L
H
380,000
L
LHHL
L
H
L
H
L
L
H
514,000
L
LHHL
L
,.
H
LH
L
LEI.,
f) MHz 26,000 - 514,000
IC110
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
5N74L5107
VOLTAGE
0.22
4.2
0.18
4.2
0.18
4.1
0
0.18
2.5
5.0
4.0
2.6
5.0 5.0
( f ) MHz 26,000'
-
' 514,000
IC111
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SN74LSOO
VOLTAGE
H H
L
H
L
H
OH
L
L
L
H
H
5.0
( f ) MHz 26,000'--' 514,000
1C112
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
uPD5101LC
VOLTAGE
-
-
-
-
-
-
-
0 0
0.15
-
0.15
0
1.0
0
1.0
5.0
0 0
3.6
-
5.5
H 5V
L OV
( f ) MHz 26,000 - 514,000
ICI 1 3
PIN, NO
1
2
3
4
5
6
7
_
8
9
10
11
12
13
14
uPA53C
VOLTAGE
0
0.27
0.2
1.0
1.0
0
7
0
0
5.8
5.5
6.5 6.5
0
IC1 14
uPD2819
f (MHz)
PIN, NO
1
2
3
4
5
6
_
7
'
8
9
10
11
12
13
14
15
16
17
18
26,000
VOLTAGE
4.5
-
-
1.3
-
0.7
-
3.8
-
-
3.8
0.65
0
-
0
-
-
-
44,995
-
-
-
-1.6--
1.6
12.1
-
-
-
-
45,000
--
-
-
2.8
-
-
2.8
3.7
-
-
-
-
57,995
-- -
-
1.4
-
-
1.4
11.3
-
-
-
58,000
-
-
-
-
3.2
-
3.2
0.6
-
-
-
-
88,000
-
-
-
-
1.4
-
-
1.4
12.0
-
-
-
-
108,000
--
-
-
4.5
-
-
4.5
0.58
-
-
-
-
139,995
-
-
- -
2.3
--
2.3
9.65
- -
-
-
140,000
-
-
-
3.4
-
-
3.4
1.3
-
-
--
180,000
-
-
- -
1.9
-
-
1.9
13.0
-
-
-
-
380,000
-
- - -
3.4
-
-
3.4
0.65
-
-
--
514,000
v
-
-
y
-
v
-
2.0
-
-
2.0
12.4
y
-
sv
-
-
-
ICI 1 6
PIN, NO
1
2
3
4
5
uPC2002H
VOLTAGE
0.7
0.7
0
6.5
13.8
ICI 1 7
PIN, NO
1
2
3
78M08
VOLTAGE
13.8
0
8.0
ICI 1 8
78M05
PIN, NO
1
2
3
VOLTAGE
13.8
0
5.0
_
TR, NO
f (MHz)
Q101
2SC945
Q102 2SC945
Q103 2SC945
Q104 2SC945
Q105 2SC1674Q106 2SC1674
ECBECBECBECBECBECB
26,000-44,995
0
(
7
0:7)
(0°6)
0
0.8
0.6
0
2.0
0.63
0
0
0.08
0
0
0
0 0
0
45,000-57,995
000000
58,000-88,000
000000
108,000-139,995
0.13
4.2
0.9
0
3.0
0.77
140,000-180,000
0.13
4.2
0.9
0
3.0
0.77
380,000-514,000y
y
y
V
\IN/
y
y
y
y
y
y
0.13
4.2
0.9
0
3.0
0.77
TR, NO
f (MHz)
Q107 2SC1674
Q108
2SC1674
ECBECB
26,000-44,995
0
0 0
0 0
0
45,000-57,995
0
0
0
0 0
0
58,000-88,000
0 0 0
0 0
0
108,000-139,995
1.0
5.0
1.8
0
5.0
2.5
140,000-180,000
1.0
5.0
1.8
0
5.0
2.5
380,000-514,000
1.0
5.0
1.8
0
5.0
2.5
TR, NO
f (MHz)
0109
2SC1674
0110
2SC1674
Q111
2SC1674
0112
2SA733
Q113
2SC945
0114
2SC1674
ECBECBECBECBECBECB
26,000-44,995
0
3.0
0.6
0
4.3
0.47
0
2.0
1.7
4.9 4.9
4.3
17.0
21.7
17.0
0
4.8
0.09
45,000-57,995
0
3.0
0.6
0
4.3
0.6
0
1.9
1.7
4.9
4.9
4.3
17.0
21.7
17.0
0
4.8
0.07
58,000-88,000
0
3.0
0.6
0
4.3
0.6
0
2.1
1.6
0
4.9
7.6
17.0
21.7
17.0
0
4.6
0.17
108,000-139,995
0
3.0
0.7
0
4.5
0.7
0
2.3
1.5
4.9
4.9
4.3
17.0
21.7
17.0
0
4.5
0.2
140,000-180,000
0
3.0
0.7
0
4.3
0.76
0
2.1
1.6
4.9
4.9
4.3
17.0
21.7
17.0
0
4.7
0.1
380,000-514,000
0
3.0
0.7
0
4.5
0.7
0
2.3
1.5
4.9 4.9
4.3
17.0
21.7
17.0
0
4.7
0.1
TR, NO
f (MHz)
0115 2SC945
0116
2SC945
0117
2SC945
Q118 2SA733
ECBECBECBECB
26,000-44,995
0
5.4
0
0.17
0.17
"
(0.4)
0.17
0.17
0.17
°
(1.5)
0
0
(1.9)
45,000-57,995
-
0
5.4
0
58,000-88,000
0
5.4
0
108,000-139,995
0
5.4
0
140,000-180,000
0
5.4
0
380,000-514,000
0
5.4
0
v
v
y
y
y
y
y
yy
2.
CONTROL P.C. BOARD
IC201
uPC324C
PIN, NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VOLTAGE
(6-3)
0
0 0
7.6
(2
'
9)
2.6
2.3
8.0
8.0
2.6
3.0
0
3.8
3.8 3.8
TR, NO
E
C
B
Q201
2SC945
0
0
0 (0.6)
0202 2SC945
0 0
0 (0.6)
0203 2SC945
3.3
7.6
3.9
0204 2SC945
0
0 (0.6)
0.6 (0)
0205 2SC2001
0
0
0 (0.6)
3.
TUNER P.C. BOARD
TR,
NO
f (MHz)
01
2SC1070
Q2
2SC1730
03 2SC1730
04 3SK74
05 2SC1674
E
C
B
E
C
B
E
C
B
S
D
G
1
G
2
E
C
B
26,000 - 88,000
0
0
0
0
8.0
0
0
0
0
0
0
0
0 0
8.0
0
108,000'
140,000
0 0 0
0
8.0
0
0
0
0
0.7
6.7
0
4.7
0.4
8.0
1.1
380,000 - 514,000
0.8
6.0
1.6
0.3
8.0
0.96
0
3.0
0.6
0
0
0
0
0
8.0
0
TR, NO
06 3SK74
07 2SC1674
f (MHz)
S
D
G,
G
2
E
C
B
26,000 - 88,000
0.9
7.1
0
4.9
0.45
8.0
1.1
108,000 - 140,000
0
0
0
0
0
8.0
0
380,000»-' 514,000
0
0
0
0
0
8.0
0
4.
VCO. P.C. BOARD
TR, NO
Q201
2SC1674
Q202 2SC1674
Q203 2SC1674
Q204 2SC1674
Q205 2SC1674
f
(M Hz)
EC
B
ECB
EC
B
EC
B
EC
B
26,000-44,995
0 0
Ci
0
0
0
0
0
0
0
0
0
0
0
0
45,000-57,995
0
0
0
0 0
0 0
0
0
0
0
0
0
0
0
58,000-88,000
0 0
0
0
0 0
0
0
0
0
0 0
0
0
0
108,000-139,995
0.5
3.6
1.0
0
3.4
0.7
0 0
0 0 0
0
2.8
4.8
3.2
140,000-180,000
0.5
3.6
1.0
-
0
3.4
0.7
0
0
0
3.0
6.2
2.4
0
0
0
380,000-514,000
0.5
3.6
1.0
-
0
3.4
0.7
3.0
7.0
3.4
0
0
0
0
0
0
TR, NO
Q207 2SC1674
Q208
2SC1674 -
Q209 2SC1674
Q210 2SC945
Q211
2SC945
Q212 2SA733
f
(M Hz)
EC
BECB
ECB
EC
.
BEC
B
EC
B
26,000-44,995
3.4
7.6
4.0
2.8
6.4
3.0
0
3.2
0.8
0.6
4.2
1.2
0
0
0
7.0
7.0
6.4
45,000-57,995
3.4
7.6
4.0
2.8
6.4
3.0
0
3.2
0.8
0.6
4.2
1.2
0
0
0
7.0
0
7.0
58,000-88,000
3.4
7.6
4.0
2.8
6.4
3.0
0
3.2
0.8
0.6
4.2
1.2
0
0
0
7.0
0
7.0
108,000-139,995
0
0
0
0
0
0
0
0
0 0 0 0
5.8
7.0
5.8
7.0
6.8
6.2
140,000-180,000
0
0 0
0
0 0
0
0
0
0
0 0 0
7.0
0
7.0
0
6.8
380,000-514,000
0 0
0
0 0
0
0
0
0
0
0
0
0 0
0
7.0
6.6
6.2
TR, NO
Q213 2SA733
Q214 2SA733
Q215 2SC945
QQ216 2SA733
Q217 2SC945
Q218 2SA733
f
(M Hz)
EC
BECB
ECB
EC
B
EC
B
ECB
26,000-44,995
7.4
0
8.6
7.6
0.4
8.5
7.6
0
8.6
7.4
0
8.6
0
0
0
7.4 7.4
7.0
45,000-57,995
7.4
0
8.6
7.6
0.4
8.5
7.6
0
8.6
7.4
7.4
7.0
0
0
0
7.4 7.4
7.0
58,000-88,000
7.4
0
8.6
7.6
0.2
8.5
7.6
7.4
7.0 7.4
0
8.6
0
0
0
7.4
7.4
7.0
108,000-139,995
7.4
0
8.6
7.6
7.0
6.8
7.6
0
8.4
7.4
0
8.6
0
7.1
0
7.4
0
8.4
140,000-180,000
7.4
0
8.6
7.6
7.0
6.8
7.6
0
8.4
7.4
7.2
6.8
6.2
7.1
6.2
7.4
0
8.4
380,000-514,000
,
7.4 7.0
6.6
7.6
0.3
8.5
7.6
0
8.4
7.4
0
8.4
0
0
0
7.4
0
8.4
5.
DC/DC CONVERTER P.C. BOARD
TR, NO
E
C
B
Q501
2S D773
10
12.8
11
Q502 2S D773
0
13.8
0.014
Q503 2SC945
0
0.015
0.6
Q504 2S D733
0
12.2
-1.7
X'tal
3
2}
4
Clock output
5 Check
6
Clock output
7 Unlock
8
Three state
9
Phase sensitive detector
10
Programmable divider output
11
Filter AMP input
12
Filter AMP output
13 Vss
14
Programmable divider input 1
15
Programmable divider input 2
16
Shift resistor clock
17
Shift resistor data
18
Latch, clock
CL
o 1
: Clock OSC
INT
: Interrupt
RES
•
: Reset
PA
3
-
0
: Input port A3-0
PB
3
-
0
: Input port B3-0
PC
3
-0 : In, out port C3-0
PD
3
-0 : In, out port D3-0
PE
3
-0 Output port E3-0
PF
3
-
0
: Output port F
3
-
0
PG
3
-0 : Output port G3-0
PH
3
-
0
: Output port H3-0
PI 2-0: Output port I 2-0
TEST
MC3357
LA1201
uPC324C
VSS
VCC
REFERENCE:
IC115
IC105, IC114
uPD553C
1 chip,
MOS)
4 Bit Micro Computor
(TOP View)
uPD2819C (C MOS LSI)
PHASE LOCKED LOOP FREQUENCY SYSTHESIZER
(TOP View)
42
O
CL, 0
CL
o
o
OV VSS
2
41
18
O
CPL
PC
0
0
0
VDDO
0
3
40
PC,
PC
2
0
PB,
0 PB,
4
39
17
001
0
X, 0
0
5
38
PC,
INTO
PB,
O
PB
O
6
37
RESO
X
2
0
16
-0 CPS
7
36
0 PA,
8
35
PD
0
0 PA,
CK, 0
9
34
15
0
Pl,
PD, 0
0 PA,
P D, 0
10
33
O
PA
0
CH30
11
32
14
0 PI,
P D, 0
O
PI
2
12
31
0 Vss
PE
c
,
0 PI,
13
30
13
PE, co
0 PI
0
CK,
14
29
PE, 0
0 PH,
15
28
12
0 AO
PE, 0
0 PH
2
ISO
0
16
27
PF
c
,
PH,
PF, 0
17
26
0 PH
0
11
E00
0 AI
18
25
PF,
0 PG,
0 PG
2
19
24
10
0 CH,
PF,
TESTO
CH, 0
20
23
VCC 10V0
O
PG,
21
22
0 PG
0
Pin No
1
VDD (5 V)
FUNCTIONAL BLOCK DIAGRAM
e
g•ra
C5
IFT-I
MC3357
R11 6.8K
0207
14
1S953
CFW455G
L108
—14T's'9°5
8
3
0.001,
CI225 0.01,
0022,
R352 10K
P 100K
VOLUME
SCHEMATIC DIAGRAM (PLL, TUNER, VCO, CONTROL)
Fig. 5
SCAN, CONTROL
SO VRIO
K(B)
PLL RC.B
CI
0.001,
2SCI070
Q I
2SCI674
02
10M1513 x2 10.7MHz
XF
XF2
CI9 0.601,
0201 Hi
L
02
69
0
7
1
'
0101°'
%I
0
.,
1595 a22»
V
CI
If 15
'
4,22K
„
R2I6 22K
0203
6
14
'
A X
0204 Q205
C191
0.1,0
0118
77,Fr 0'
?
0 X
I
3 I 2
•
•
v2gn,
CONTROL P. C B
402353N
CI92
7A
T
CK
SP
220,u
IS 2222
(D2,3,4,7,9,10/152209
015,18 1
ISV 50
(D19)
15953
Q4
3SK74 I3SK-411
2SCI730
5
2SCI674
UPC324C
01
SC945
R132
06
3SK74 3SK- 411
RO
T
`1
TO. TUNERS
C)
TO. FINE TUNING
0105
0106
2SCI674
2SCI674
0.022,
,D,c4
38
v
Psr'
DI27
14
5.
1
3
S
\r
3
R1212
Yh
4.7K
TUNER P. C.B
2SC 1674
FE6
-
179
;
1
,
3
2
lll
9j
,Y.353
R,54
X5 5.76MHz
4-
10
i o
220
,
ra
,-.
)
,
-)-r°
!
'
4
.1
7
5
o
5
K T 22.
0
0
11)
0
ciss p C4
P2
315.05
0
315
10K
.,
o
6
IC
-
109
K
.-
1.
Ci
a
6
'i
0.47,u
RI5
G
_LT.
A
5
T
V
T
x 2
I
C1209
;
0.022,u
4
-0-
u.
,
0
II.10V
OM C OC / DC
OFF
CLOCK SW
TO, DC
B
/
2
DC
2SA733
r1Vg0K x4
0**
R303 C303
R307
R308 2,K
79355
0
0924
0113 Ri
2SC945
-
6c
.P.
IC- 112
uPosiowc
R
iZ1
4
F1'8gi<
2
-'
1
1
W
6
45
0115
5
,210 47K
R12
#
0
,,t
9
c,K
TO
KBOEYARD
10201- 205
207
,
210 1
2SC 1674
( 021 1
2
,
s
2
c
1:2
5L
(Q
17:11
5
8
2SA733
RI207 10
C352
0.01p
Z
i
e
2
1
9
K
e
IS2222 x3
D115,..121
***
S
a
l
ôr
RioK
.
15953
x
7
22K
0.0bu
0211
-
X2 7.76MHz
X3 7.20MHz
X4 4.80MHz
0212
„FF;',
1
g4TZTG,B,
0501
2S077 3 R501
10
v ouT
I/2W 8.2
=
_O
cj
6
cS
gin
r)
tr
o
I3.8V
POWER SW
ON
OFF
SO
N
OF
0
0
CK SW
RD-9.1E8
0503
2SC945 L
_
Li 0.0
L501
m H
- 22
V
ou T
0504
SD77
L503 1m H
-17V
in
mg*.
=
o>
e)
0
—4 —
en
(
1:
)
1
[2
=
R511 cc
27
-
71W
-1
O
o
ig)
/
IFT 503
923621
co=
œ
u-i
•
0,,
1
i
1
I
1
t— 1-1 —14-
4.0
I
L
+22
C509®
our
D508 0.00Ip
RD-24EB
>
L502 1mH
fv
)
8
za
-
0
0
%id
0506
I FT502 923620
+82
IS-953
x
2
041
•
IBR402
ilOOKII
I x7
•
:
c
*
-
i
i***111
it
s
" Z?
)
I
•
-
10 1 2 3 4 5 6 7 uP
SI
8
9
FR (INTO-1M CK 0SW 0Mw DOWN
SCAN
MI M2 3 4 M5 6 7 8 A
M9
MIO MI I MI2 MI3 M14 MI5 dA16 SCAN
_
0
2
3
8R401
100Kfl
X 10
330
34 0
350
136 0
27
26ig
.
•
•
190
'
8
178
16 0
PS
a
f Fab
e Dgac
4c-.
d Dp
11111111111
11111111
•
FLT DISPLAY 9E3T
-
02
•
G9 Ge G4 G2
G7 Ge Ge G3 Gi F F
c
c
b,
C
f
g
Dp
•
•
•
F gG9f Ge e G7d G6DpG5 G4 c G3bG2OGI F
SCHEMATIC DIAGRAM (KEYBOARD & DC-DC CONVERTER)
Fig. 6
KEY BOARD I? C.B.
OFF
o
_IDIMMER SW
ON
DC/DC CONVERTER P. C .B.
SPEAKER
RED
SPEAKER
JACK
DX /LO
SW.
RI 101‹
SCAN CONT.
K
BATTERY
HOLDER
DIMMER
CONTROL
P. C. B.
2P
TERMINAL
REC JACK
TUNER P. C. B
ORG
WHT
POWER
EXT.
ORG
.1=1,
,--=
1E34
2
RED
BLU
VLT
BRN
RED
YEL
GRN
VCO P. C.B.
PLL P. C. B .
•
HT
f
FM/AM
SW.
L/GRN
VLT
DRY
FINE
TUNING
VOLUME
POWER
SW.
BLU
KEY BOARD
P. C. B.
WHT
WIRING DIAGRAM
Fig. 7
age,A0Ln2MA
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