Icom IC-R100 User manual

е
СОМ
SERVICE
MANUAL
WIDEBAND RECEIVER
IC-RIOO
Icom Inc.

INTRODUCTION
This service manual describes the latest service infor-
mation for the IC-R100 VVIDEBAND RECEIVER at the
time of going to press.
5 versions of the IC-R100 have been designed. This
service manual covers each version.
VERSION NO. VERSION SYMBOL
m |
To upgrade quality, all electrical or mechanical parts,
and internal circuits are subject to change without
notice or obligation.
DANGER
NEVER connect the receiver to an AC outlet or to a
DC power supply that uses more than 16 V. This will
ruin the receiver.
DO NOT expose the receiver to rain, snow or any
liquids.
DO NOT reverse the polarities of the power supply
when connecting the receiver.
DO NOT apply an RF signal of more than 20 dBm
(100 mW) to the antenna connector. This could damage
the receiver's front end.
UQUID CRYSTAL DISPLAY
ЕМ АРС
aim nni
UTLIULULILELI
PAUSE MODE пока
12 se
COMMUNICATIONS RECEIVER TC -R1OO
ORDERING PARTS
Be sure to include the following four points when ordering
replacement parts:
1. 10-digit order numbers
2. Component part number and name
3. Equipment model name and unit name
4. Quantity required
«SAMPLE ORDER»
1130001000 IC UPD4066BC — IC-R100 MAIN UNIT 5 pieces
8810006130 Screw BiH M2.6 x5 IC-R100 Top cover 10 pieces
Addresses are provided on the inside back cover for your
convenience.
REPAIR NOTE
. Make sure a problem is internal before disassembling
the receiver.
. DO NOT open the receiver until the receiver is dis-
connected from its power source.
. DO NOT force any of the variable components.
Turn them slowly and smoothly.
. DO NOT short any circuits or electronic parts.
An insulated tuning tool MUST be used for all
adjustments.
. DO NOT keep power ON for a long time when the
receiver is defective.
. READ the instructions of test equipment thoroughly
before connecting equipment to the receiver.

SECTION
SECTION
SECTION
SECTION
SECTION
SECTION
SECTION
SECTION
SECTION
Ф
> A A b a a RA
aan о
~ لح لح لد لح
оо o o со
ж о N ~
о со + G N 一
ко N 一
TABLE OF CONTENTS
SPECIFICATIONS
22222222222..........4222....2..2...
1—
1
INSIDE
VIEWS.
RR]
RR]
eee
ens
2—1
BLOCK
DIAGRAM
оон
Lees
od
a
E
арды
лы
URN
3—
1
CIRCUIT
DESCRIPTION
eem
4—1~8
RE
CIRCUITS.
vo
а
лкен
Rem
Se
eae
ak
ди
SES
4
一
1
IF
CIRCUITS:
оа
ERE
xU
e
eher
Бека
бады
ад
„=
о
4
一
2
PLL
СІНСІЛТ5...........................................................
Ц.
4--4
POWER
SUPPLY
CIRCUITS
.
e
hme
mrt
4—5
OTHER
СІНСІЛТ5............................................43л4л.2........Ш
Ж
4--6
LOGIC
СІНСІЛТ5.....................................................Ҙ0...а.
ЗУ
4--7
MECHANICAL
PARTS
AND
0І$АЅЅЕМВІҮ............................
5—1~3
FRONT
PARTS
.......................
hh
heh
hh
eme
hh
5
一
1
ACCESSORIES
................................................
........
as
5--1
CHASSIS
РАВТЗ................
GOES
edle
gU
ма
О
СЕТ
Ur
AE
5—2
PARTS
ET
а
аи
ои
аи
ақтар
ыны
ары
6—1~9
ADJUSTMENT
PROCEDURES
ea
7—1~8
PREPARATION
BEFORE
SERVICING.
........
cee
eee
tnt
7
一
1
TEST
EQUIPMENT
СОММЕСТІОМ.............................................
7—1
PLL
ADJUSTMENT
......
неее
еек"
7
一
2
RECEIVER
АРЈОЅТМЕМТ.
......
ee
ee
tte
eee
tees
7—3
BOARD
LAYOUTS
La
вон
a
bisce
eal
seeds
8-1-5
SUBORDINATE
LOGIC
ӘМІТ5........................................2....Д2ДШД...
8
—
1
MAIN
UNIT
.................
RR
Rh
eek
heran
8
一
3
PLE
UNIT
са
ОО
ie
да
к
а
алы
ОСО
ORE
eh
ы
dela
8—4
SUBORDINATE
PLL
UNITS
..................................................
8—5
VOLTAGE
DIAGRAM
|.
9—1

SECTION 1 SPECIFICATIONS
e Frequency coverage
e Mode
е Tuning step increments
e Antenna impedance
e Power Supply requirement
e Current drain (at 13.8 V DC)
e Usable temperature range
e Frequency stability (at 1800 MHz):
e Number of memory channels
e Dimensions
e VVeight
e Sensitivity
e Selectivity
e Audio output povver
e Audio output impedance
VERSION FREQUENCY COVERAGE
U.S.A.,
Europe,
0.1--1856
MHz*
Australia
13.95— 14.5 MHz, 28.0— 29.7 MHz,
144.0 — 146.0 MHz, 430.0--440.0 MHz,
1240.0 --1300.0 MHz
0.1--87.5 MHz, 108.0--1856 MHz*
*Specifications guaranteed for 0.5--1800 MHz
AM, FM, Wide FM (WFM)
1, 5, 8, 10, 12.5, 20 ог 25 kHz (100~521.5 kHz and 1.630— 904.9995 MHz)
1, 5, 8, 9, 10, 12.5, 20 or 25 kHz (522— 1629.5 kHz)
12.5, 20 ог 25 kHz (905-1856 MHz)
50 Q (unbalanced)
13.8 V DCx 15 % (negative ground)
Less than 1.1 A
—10 'C— +60 °С (+14 ^F— +140 °F)
+3.5 ppm (0 'C— +50 °C; +32 °F~ +122 °F)
Memory channels 100
Priority channel 1
Scan edge channels 20
(for 10 scan ranges)
150 (W) x 50 (H) x 181 (D) mm
5.9 (VV) x 2.0 (H) x 7.1 (D) in
(Projections not included)
1.4 kg (3.1 Ib)
Frequenc
Germany
Еве |
-一 saw | с L - | su |
[ res вање | mw | — | w |
Measurement conditions :
Preamp is ON in the 50--904.9995 MHz frequency гапде.
FM 12 dB SINAD (1 kHz modulation with +3.5 kHz deviation)
WFM 12 dB SINAD (1 kHz modulation with +50 kHz deviation)
АМ 10 4В 5/М (1 kHz modulation with 30 96 depth)
FM More than 15 RHz/—6 dB
VVFM More than 180 КН2/-3 dB
AM More than 6 kHz/—6 dB
More than 2.5 VV at 10 96 distortion with an 8 О load.
4-8 О
All stated specifications are subject to change without notice ог obligation.

SECTION 2 INSIDE VIEWS
e TOP VIEW
Switching relay circuit
IC7 ND487C1
tst me
(Се CB346M1B
50.0 一 905.0 MHz Preamplifier
(IC2: MC-5156)
ғазып----- "MEN,
ЕЧ
d f
FIL 1 UNIT - à
4
L TUNER UNIT
Reference
crystal
m
(X1: CR316 12.6 MHz) a =
10 V DC-DC Converter
Pulse-swallow counter (IC5: BA6161M)
(IC1: M54562P)
Expander (IC11: LA7910)
e BOTTOM VIEW
FM detector circuit
(IC1:
MC3357P)
Lithium
backup
battery
Reference crystal
(X1: CR114 10.24 MHz)
AFC circuit (IC2: BA695)
у ircuit
арашы
WFM
detector
circuit
(СЗ: MC3356P)
Analog switching circuit
AM,
ЕМ
1st
IF
circuit
(IC5:
uPD4066BC)

BLOCR DIAGRAM
SECTION 3
LINO
NIV
LINN
Td

SECTION 4
CIRCUIT DESCRIPTION
41 RF CIRCUITS
4-1-1 FILTER CIRCUIT (PLL UNIT)
The IC-R100 has 3 antenna connectors (J7, 98, J9) for a
super-wideband receiving range of 0.1 MHz to 1856.0
MHz. Received signals enter one of the 3 antenna
connectors depending on the receive frequency range.
(1) 0.1—50.0 MHz FILTER
RF signals from an antenna connector (J8) are distributed
to three separate filters through switching diodes (D10,
D12) for filter selection.
* 0.1000— 1.6290 MHz
After passing through a switching diode (D10) a
0.1000— 1.6290 MHz signal is applied to an attenuator
consisting of R64~R66. The attenuator prevents
distortion of very strong signals from medium wave
broadcasting stations. The signal is applied to FIL 1
(С1--С5, 11, 12) which forms a low-pass filter. The
filter circuit cuts off frequencies of 1.6290 MHz or higher.
The filtered signal passes through a switching diode
(D11).
• 1.6295--32.7495 MHz
After passing through a switching diode (012) a
1.6295--32.7495 MHz signal is applied to FIL 2 (C1—
C7, L1, L2) which forms a high-pass filter. The filter
circuit passes frequencies approx. 1.630 MHz or lower.
The signal is applied to FIL 3 (С1--5, 11, 12) which forms
a low-pass filter. The filter circuit cuts off approx. 32.75
MHz or higher. The filtered signal passes through a
switching diode (D14).
| 32.7500--49.9995 MHz
A 32.7500 MHz~49.9995 MHz signal is applied to FIL 2
through the switching diode (О12). The signal is applied
to FIL 4 (C1~C9, L1~L4) which forms a bandpass filter.
The bandpass filter passes signal within the frequency
range of 32.7500~50.0000 MHz. The filtered signal is
applied to the switching diode (D14).
е RF CIRCUITS
0,1--49,9995 MHz
0.1—1.8290 MHZ
1.6295--49.9995 MHz 1.6295 一 32.7495 MHz
(2) 50.0--905.0 MHz FILTER
No filter is installed in this frequency range. RF signals
enter an antenna connector (J7) and then are applied
to the RF relay circuit (RL2, RL3). The RF relay circuit
switches the signals to bypass through a preamplifier
(С2) ог be amplified at the preamplifier. The pre-
amplifier (IC2) provides 15 dB gain to attenuate ап IF
signal level at an attenuator circuit (Q16) when the
preamplifier circuit is turned ON.
(3) 905.0--1856.0 MHz FILTER
RF signals enter an antenna connector (J9) and then pass
through a switching diode (018). The signals are applied
to two separate high-pass filters for frequencies lower than
and higher than 1380.5 MHz. The filtered signals pass
through a switching diode (D21).
4-1-2 HF BAND CONVERTER CIRCUIT
(PLL UNIT)
The filtered signals entering at J8 are applied to a 1st
mixer circuit consisting of IC7, L29, L30 and then are
mixed with a 63.0 MHz 1st LO signal to produce a 63.1
~112.9995 MHz 1st IF signal corresponding to the
receive frequency range ої 0.17-49.9995 MHz.
The 63.0MHz 1st LO signal is generated by a local
oscillator (X1, Q1). X1 produces a 12.6 MHz reference
frequency. The reference frequency is multiplied by five
at LO amplifiers (Q6, Q15) for producing the 63.0 MHz
1st LO signal.
4-1-3 1GHz BAND CONVERTER CIRCUIT
(PLL UNIT)
The filtered signals entering at J9 are applied to a RF
amplifier (IC8) corresponding to a UHF band and then
applied to a 1st mixer circuit (IC9). IC9 is a DBM (Double
Balanced Mixer) The signals are mixed with a 475.5
905.0 MHz 1st LO signal to produce a 429.5— 905.0
MHz 1st IF signal corresponding to the receive frequency
range of 905.0— 1856.0 MHz. Тһе 475.5--905.0 MHz 1st
Lo signal is buffer-amplified at IC10 depending on the
receive frequencies. The signal is applied to the 1st
mixer circuit (IC9).
©?
1st LO signat
from |016

4-2 IF CIRCUITS
4-2-1 TUNER UNIT (PLL UNIT)
The TUNER UNIT (EP2) contains an RF amplifier controlled
by
the
ТАСС
signal,
mixer
and
4
VCOs.
Тһе
RF
signals
are applied to P2 on the TUNER UNIT (EP2) to be con-
verted to а 46 MHz IF signal. Тһе TUNER UNIT (EP2)
outputs the signal from pin 8. IC2 on the LOGIC UNIT
supplies 2-bit data to IC11 (pin 3, 4). IC11 is ап expander
for switching the operating band of TUNER UNIT (EP2).
The following table (Fig 2) shows the relations between
2-bit data and the band signal.
H: High level
No indication: Lovv level
4-2-2 AMIFM IF AND 2ND MIXER CIRCUITS
(MAIN UNIT)
The 46 MHz IF signal passes through a switching diode
(D1) with AM 5 and FM 5 signals when AM or FM mode
is selected. The signal is applied to an IF amplifier
and then applied to a crystal filter (ЕП) to improve the
selectivity.
The filtered signal is applied to a 2nd mixer (Q2) and
then mixed with the 35.3 MHz 2nd LO signal to produce
a 10.7 MHz 2nd IF signal.
A 35.3 MHz 2nd LO signal is generated by a 2nd local
oscillator circuit consisting of D8, X3, Q5, and other
components. The 2nd LO oscillator circuit produces a
frequency step less than the PLL reference frequency.
The LOGIC UNIT supplies D/A converted signals to IC10
(pin 3) which correspond to each tuning step. The
signals are amplified at IC10 and then applied to a
varactor diode (D8) which shifts the oscillation frequency.
• АМІЕМ IF AND 2ND MIXER CIRCUITS
46.0 MHz 10.7 MHz
Q1
IF
| PLL IC
signal (IC1,
pin 16)
AM, FM 35.3 MHz
signal
DIA signal
from
LOGIC UNIT
Fig. 3
4—2
4-2-3 2ND IF AND FM DEMODULATOR
CIRCUITS (MAIN UNIT)
The
10.7
MHz
2nd
IF
signal
is
applied
to
ҒІ2.
Fl2
is
а
MCF
(Monolithic
Crystal
Filter)
which
suppresses
out-of-
band
signals.
The 2nd IF signal is applied to a 3rd mixer section of
IC1 and is mixed vvith a 3rd LO signal to be converted
to a 455 kHz 3rd IF signal.
IC1 is designed for use in FM dual conversion com-
munications equipment. IC1 contains the 3rd mixer,
local oscillator circuit, limiter amplifier, quadrature
detector circuit, and active filter circuit. The local
oscillator section and X1 generate 10.245 MHz for a
3rd LO signal.
The 3rd IF signal from the 3rd mixer (IC1, pin 3) passes
through a ceramic filter (F13) where unwanted signals are
suppressed. It is then amplified at the limiter amplifier
section (IC1, pin 5) and applied to the quadrature detector
section (IC1, pin 8 and ceramic discriminator X2) to
demodulate the 3rd IF signal into an AF signal. The AF
signal is output from IC1 (pin 9).
4-2-4 AM DEMODULATOR CIRCUIT
(MAIN UNIT)
A portion of the 455 kHz 3rd IF signal is applied to an IF
amplifier (Q4) after passing through the ceramic filter (FI3)
when AM mode is selected by switching diodes (D5, D7).
When the switching diodes are turned ON, AM 5 signal
line obtains 5 V. The amplified signal passes through
a ceramic filter (Fl4) to improve selectivity. The filtered
signal is re-amplified at an IF amplifier (Q7) and then
rectified by the AM detector circuit (D10, D11). The
detected signal is demodulated into an AM signal.

e 2ND IF AND ҒМ/АМ DEMODULATOR CIRCUITS
5.0У
I01
2nd LO AM5 line
AF
signal
signal
Fig.
4
4-2-5
WFM
DEMODULATOR
CIRCUIT
When
the
“WFM
5"
line
becomes
“HIGH”,
the
S-meter
(MAIN
UNIT)
switch
(Q9)
is
turned
ON
to
cut
off
the
FM
or
AM
signal.
The
46
MHz
IF
signal
is
applied
to
a
2nd
mixer
section
In
FM
or
AM
mode,
the
S-meter
signal
is
applied
to
IC4(b)
of
IC3
and
then
mixed
with
the
35.3
MHz
2nd
LO
signal
(pin
6)
through
the
ТАСС
signal
line.
Тһе
inverted
and
to
produce
а
10.7
MHz
2nd
IF
signal.
amplified
signal
is
applied
to
the
main
CPU
(IC2,
pin
93).
The
35.3
MHz
2nd
LO
signal
is
amplified
at
an
LO
When
the
"FM
5"
or
"AM
5"
line
becomes
"HIGH",
the
amplifier
(Q6)
and
is
then
applied
to
the
2nd
mixer
S-meter
switch
(Q10)
is
turned
ON
to
cut
off
the
WFM
section
through
IC3
(pin
3).
S-meter
signal.
IC3 is designed for use in digital data communications
equipment. IC3 contains the 2nd mixer, local oscillator 4-2-7 AGC CIRCUIT (MAIN UNIT)
circuit,
limiter
amplifier
and
quadrature
detector
circuit.
In
FM
or
AM
mode,
the
signal
is
detected
to
obtain
AGC
vol
at
D1
D11
and
is
then amplified
at
an
AGC
The
2nd
IF
signal
from
the
2nd
mixer
(IC3,
pin 5)
passes
age
ا󰾯
M |
:
P
|
i
ih
h
ic
filter
(Е15)
wh
têd
апа!
amplifier
(Q11).
The
amplified
signal
is
distributed
to
a
des
i
È
SF
M
Va
put
i
SIE
"di
base
of
the
IF
amplifier
(Q1)
on
the
MAIN
UNIT
and
the
Suppressed..
DEAS
шеп-атриес
atthe:
р
ВЕ
amplifier
on
the
TUNER
UNIT
(EP2)
through
the
section
(IC3,
pin
7)
and applied
to
the
quadrature
detector
TAGC
line
section
(IC3,
pin
11
and
ceramic
discriminator
X4)
to
|
ек
И
de
an
AF
signal.
The
AF
Іп
WFM
mode,
the
"WFM
5"
line
becomes
“HIGH”,
ЗОНА
IS
UPAR
ONE
(pin
13).
turning
ОМ
012.
Тһе
АСС
voltage
is
cut
off
when
Q12 is turned ON.
4-2-6 S-METER CIRCUIT (MAIN UNIT)
When the scan is in operation, the AGCR signal from
In
WFM
mode,
the
S-meter
signal
is
output
from
IC3
(pin
the
LOGIC
UNIT
turns
OFF
Q23.
C132
is
bypassed
to
14)
and
then
applied
to
IC4(a)
(pin 3).
The
amplified
reduce
the AGC
time constant.
signal
is
applied
to
a
main
CPU
(IC2, pin
93).
e МЕМ DEMODULATOR CIRCUIT
5.0 V
2nd LO signal
WFMS5 line
S-METER
MUTE
Q9
TAGC
Signal
SM line
from
LOGIC
UNIT
(сз S-Meter АМР
signal
S-METER
MUTE
010
1st IF signal

4-2-8 SQUELCH CIRCUIT (MAIN UNIT)
The IC-R100 has 2 squelch systems, S-meter squelch and
noise squelch.
The noise squelch functions in FM mode. Some of the
noise components in the AF signal from IC1 are applied
to IC1 (pin 10) via a de-emphasis circuit (R17, C28, C29).
This de-emphasis circuit is an integrated circuit vvith
frequency characteristics of —6 dB/octave.
The active filter section in IC1 amplifies noise components
of frequencies of 20 kHz and above, and outputs the
resulting signals from pin 11. Output signals are rectified
by D2 and D3, and converted to DC voltage.
The rectified voltage triggers the squelch switch (Q3) and
then is applied to a squelch trigger circuit (IC1, pin 12).
The output level from IC1 (pin 14) becomes "LOW" and
turns ON D29. The AF signal is muted when the output
level from IC6(b) (pin 7) becomes "LOW."
The S-meter squelch functions in either AM or WFM
mode. The S-meter squelch signal from IC1 (pin 11) is
applied to IC6(a) through the squelch switch (Q3) to
compare with a reference voltage controlled by R86 on
the LOGIC UNIT. When this reference voltage level is
higher than .the S-meter squelch level from IC1 (pin 11),
028 is turned ON. The output level from IC6(b) (pin 7)
becomes "LOW" to mute an AF signal line.
When the S-meter squelch is in operation, Q19 is turned
ON to cut off the noise squelch.
4-2-9 AFC CIRCUIT (MAIN UNIT)
This circuit automatically controls the receive frequency
to compensate for the frequency drift in FM or AM mode.
IC2 is a monolithic IC which lights up "AFC" on the function
display when AFC function is in operation. A current
regulator (IC8) supplies a 10V reference voltage to
IC2 (pin 1) for comparison with the DC component in the
detected FM or AM signal.
The frequency drift selects an output signal to control
the receive frequency. The signal is output from IC2
(pin 6—8) and applied to the LOGIC UNIT.
4-2-10 AF AMP CIRCUIT (MAIN UNIT)
The de-modulated signals are applied to an AF mute circuit
consisting of IC5(b)~IC5(d) and then amplified at 015.
The amplified signals are applied to the [VOL] control
(R1) on the VR UNIT. When the squelch is closed, IC5
cuts off the AF signals like an AF mute switch. The AF
signals are power-amplified at an AF power amplifier
(IC7) to drive a speaker.
4-2-11 ANL CIRCUIT (MAIN UNIT)
This circuit eliminates the noise components to obtain
clear reception in AM mode.
4 一 4
The ANL circuit consists of В70--В73, 012, C69, and Q8.
The detector output from D10 and D11 is applied to the
anode of D12 through R72 and В73. The detector output
is also applied to the cathode of D12, passing through
R70 where it is divided by R70 and R71.
When the [AFC * ANL] switch is turned OFF, the anode
voltage of 012 is higher than the cathode voltage. 012
is therefore activated. However, when the [AFC * ANL]
switch is turned ON, the ANL signal line becomes "HIGH"
to turn ON 08. C69 and C117 are grounded. Therefore
the detector output, including pulses, is only applied
to the cathode of D12. The cathode voltage becomes
higher than the anode voltage and D12 shuts OFF just
at the moment when the pulses are received. The AF
signal (excluding pulses) then passes through D12 and
is applied to !С5(с).
* ANL CIRCUIT
Q8 069, R72 D10
AM
signal
[AFC-ANL]
switch
(LOGIC UNIT)
to
015
Fig. 6 AM5 line
4-3 PLL CIRCUITS
4-3-1 GENERAL (PLL UNIT)
The PLL circuit, using a one chip modulus prescaler (IC3),
directiy generates the 1st LO frequencies vvith 4 VCO's
on the TUNER UNIT. The modulus prescaler (IC3) sets
the dividing ratio based on serial data from the CPU,
and compares the phases of VCO signals and the
reference oscillator frequency. The PLL IC (IC3) detects
the out-of-step phase and outputs it from IC3 (pin 5).
A reference frequency is oscillated at X1.
4-3-2 REFERENCE OSCILLATOR CIRCUIT
(PLL UNIT)
A 12.6 MHz reference frequency is produced by the local
oscillator section of (СЗ and X1. C14 provides frequency
control.
4-3-3 LOOP FILTER CIRCUIT (PLL UNIT)
Phase-detected signals from !C3 (pin 5) are converted
to DC voltage by a loop filter consisting of an active filter
(Q2 and Q3).
The DC voltage (PLL lock voltage) is fed back to the
TUNER UNIT (EP2) through an LV signal line to control
the VCO oscillation frequency.
The unlock signal is output from (СЗ (pin 7).

50.0—905.0MHz
N RF
О
О
905.0--1856.0 MHz
О
V 1st LO
©
V
630MHz
SERIAL
DATA
x1
g
J 12.6 MHz
4-3-4 VCO CIRCUIT (PLL UNIT)
Each of the 4 VCO's oscillates a different frequency on
the TUNER UNIT (EP2). The Fig. 7, 8 shows the relations
between VCO and oscillation frequency.
Fig. 8
The signals are buffer-amplified at IC4 and then applied
to IC3 (pin 8). The buffer amplifier (IC4) protects the
PLL output signal against VCO oscillation.
4-3-5 DC-DC CONVERTER CIRCUIT
(PLL UNIT)
IC5 is a DC-DC converter which creates approximately
30 V DC from 10 V DC to obtain wide range lock voltages
for the PLL circuit.
Fig. 7
TUNER UNIT(EP2)
eae 1󰾰 کے
1
09 i ©
| |
IF OUT
I
І
45.995—
| i 46.004 MHz
! І
l !
!
Гм
LOOP
FILTER
4-4 POWER SUPPLY СТВСЏТ5
4-4-1 VOLTAGE LINES
LINE DESCRIPTION
13.8 V DC controlled by the PWS signal line.
5V Common 5 V converted from the 13.8 V line at
IC 9 on the MAIN UNIT.
10 V DC converted from the 13.8 V line. IC8
on the MAIN UNIT is a switching regulator IC
and converts IC5 output into approx. 30 V DC.
4-4-1 SWITCHING CIRCUIT (MAIN UNIT)
This circuit consists of Q17, Q18 and Q30. The circuit
corresponds to the high-rippled DC voltage which an AC
adapter contains. When a ripple is present in DC voltage,
a ripple filter (C129, R132) eliminates the ripple to obtain
clear reception.

4-4-2 5VAND 10V REGULATOR CIRCUITS
(MAIN UNIT) |
The ОС voltages are supplied from regulator circuits
corresponding to the voltages. They are regulated at
the follovving circuits using 13.8V DC.
(1) 5 V REGULATOR (MAIN UNIT)
5V DC is regulated by the three-terminal voltage regulator
(IC9) and applied to the MAIN and PLL UNITS.
(2) 10 V REGULATOR (MAIN UNIT)
10V DC is regulated by the three-terminal voltage regulator
(IC8) and applied to the MAIN and PLL UNITS.
e 5 V AND 10 V REGULATOR CIRCUITS
HV iine
[PUSH-ON/VOL]
CONTROL
POW
line
13.8 V
Fig. 9
4-4-3 CPU POWER SUPPLY CIRCUIT
(LOGIC UNIT)
The DC voltage is applied to the main CPU (IC2, pin 8) via
D2 from the lithium backup battery (BT1) to provide
backup for the memory contents regardless of the power
switch condition.
e CPU POWER SUPPLY AND CPU RESET CIRCUITS
LOG 5 line
Fig. 10
4-4-4 SUB CPU POWER SUPPLY CIRCUIT
(MAIN AND LOGIC UNITS)
The DC voltage is applied to the sub CPU (IC1, pin 54)
from the lithium backup battery (BT1) to provide backup
for the memory contents. This circuit is controlled by
Q28.
* SUB CPU POWER SUPPLY
LOG 5 line
SBUP line
to
LOGIC UNIT
IC1 (pin 54)
Fig. 11
4-5 OTHER CIRCUITS
4-5-1 DIMMER CIRCUIT (LOGIC UNIT)
The dimmer circuit consists of Q8, Q9 and other
components and drives backlights (DS2), ensuring that
brightness does not change even with a change of
power supply.
When the main CPU (IC2, pin 28) changes its output
level, Q8 and Q9 change the base voltage and collector
current.
When the main CPU (IC2, pin 28) outputs "LOW", the
base of Q9 obtains 5V through R89 to light up DS2.
When the main CPU (IC2, pin 28) outputs "HIGH" to turn
ON, Q1, R89 and R90 divide 5 V into three voltages. The
three voltage portions are applied to the base of Q9.
Therefore, the collector voltage from Q8 decreases to
dim the brightness of the lamp (DS2).
4-5-2 CPU RESET CIRCUIT (LOGIC UNIT)
When the power switch is turned OFF, the reset circuit
functions as a three-terminal voltage regulator IC (IC3)
which resets the main CPU (IC2) IC3 detects +5 V
when the DC voltage is applied to the input terminal
of IC3 and outputs 5 V. The voltage of the leading
edge is applied to a time constant (C55, R93) to obtain
sufficient reset time and inverted to supply a reset
signal to the main CPU (IC2, pin 7) at Q12.
The differential circuit (C54, R84) functions while an AND
circuit (D3 , D5) pushes and holds the [CLK], [FUNC],
and [ENT] switches. When the power switch is turned
ON, the differential circuit outputs a pulse to reset CPU.
4-5-3 REAL TIME CLOCK (LOGIC UNIT)
This receiver has a clock IC (IC1) with timer function.
A 32.768 kHz is oscillated at X2 for clock reference.
When the power switch is turned OFF, the DC voltage is
applied to the sub CPU (IC1) from the lithium battery to
provide backup for clock operation.

46
LOGIC
CIRCUITS
(LOGIC
UNIT)
The
LOGIC
UNIT
has
two
CPUs
installed
as
main
and
sub
CPUs
for
a
variety
of
operating
functions.
4-6-1
MAIN
CPU
(IC2)
PORT
ALLOCATIONS
()
INPUT
PORT
DESCRIPTION
When the port becomes
“LOW,” the CPU detects
that the [0] key has been
pushed.
When the port becomes
“LOW,” the CPU detects
that the [1] key has been
pushed.
I
|
i
P14
When the port becomes
"LOW," the CPU detects
that the [2] key has been
pushed.
When the port becomes
"LOW," the CPU detects
that the [3] key has been
pushed.
When the port becomes
"LOW," the CPU detects
that the [4] key has been
pushed.
When the port becomes
"LOW," the CPU detects
that the [5] key has been
pushed.
When the port becomes
"LOW," the CPU detects
that the [6] key has been
pushed.
When the port becomes
"LOW," the CPU detects
that the [7] key has been
pushed.
When the port becomes
"LOW," the CPU switches to
Input port for control signals
to communicate with the sub
CPU. "HIGH" voltage is
applied to the terminal every
second.
Input port for the DOWN
signal of the main dial.
Input port for the UP signal
of the main dial.
Ме
—_
ы
Р25 DUP
Input port for serial data.
K8 49 When the port becomes
"LOW," the CPU detects
that the [B] key has been
pushed.
PORT
|
PORT
PIN
NUMBER|
NAME
|NUMBER
DESCRIPTION
When the port becomes
“LOW,” the CPU detects
that the [9] key has been
pushed.
When the port becomes
"LOW," the CPU detects
that the [*] key has been
pushed.
When the port becomes
“LOW,” the CPU detects
that the [ENT] key has been
pushed.
KENT
When the port becomes
“LOW,” the CPU detects
that the [UP] key has been
KUP
- |
EES
ШЕ
~
~
>
о
When the port becomes
“LOW,” the CPU detects
that the [DOWN] key has
been pushed.
> о
When (ће port becomes
"HIGH," the CPU detects
that the receiver receives
signals.
When the port becomes
"LOW," the CPU detects
that the power switch has
been turned ON.
BUSY
When the port becomes
“LOW,” the CPU detects
that the clock switch has
CLKS
been turned ON.
P70~
VER1~
67~69
|
Used
for
selecting
a
version
P72
VER3
when
only
the
CPU
is
reset.
i
AUTO
і
When
the
рогі
becomes
“LOW,” the 9 kHz step of the
U
P75 FDN 73
TS function is selected.
This TS selection is only
possibe after the CPU has
been reset.
AFC control signal input.
When the port becomes
"LOW," AFC controls the
receive frequency for the
higher frequency
direction.
ч
L3
AFC control signal input.
When the port becomes
"LOW," AFC controls the
receive frequency for the
lower fequency direction.
74 AFC control signal input.
When the port becomes
“LOW,” the CPU detects
that the displayed frequency
(center frequency) has been
received.
P76 FONT
AID signal input. Used for
indicating signal strength on
the S-indicator.
іа
РТО SM
PT7
3

(2) OUTPUT PORT
PORT | PORT PIN |
NUMBER | NAME | NUMBER DESCRIRHON
Р00-- DAO~ 14~18 | Output D/A converted
P04 DA4 signals which control the
frequency for lower 10 kHz
unit.
POS шы Тһе port becomes "HIGH"
ишан when АМ mode is selected.
85 Outputs a strobe signal for
the PLL IC chip.
SSTB Outputs a strobe signal for
the sub CPU.
when FM mode is
selected.
The port becomes “HIGH”
when МЕМ mode is
selected.
The port becomes "HIGH"
square vvaves used as a
beep tone.
Outputs a pulse of 15џ5ес.
vvidth vvhen the CPU is reset.
Output band control
signals. See the table
shovvn in the section.
The port becomes "HIGH"
when the [PRE/ATT] switch
is pushed опсе.
Outputs serial clock
Signals.
Outputs serial даѓа.
= |
SRST
Outputs 1 kHz or 500 Hz
јаз
The port becomes "НІСН"
when the ГРВЕ/АТТ) switch
is pushed tvvice.
The port becomes “HIGH”
when the [PUSH-ON/VOL]
Switch is ON.
The port becomes "HIGH"
when the [AFC - ANL] switch
is ON.
The port becomes “HIGH”
when the [DIM] switch is
The port becomes "LOW"
when the AGC is set to FAST
in scanning operation.
4-6-2 SUB CPU PORT ALLOCATIONS
PORT PORT PIN
NUMBER
|
МАМЕ
|
NUMBER
DESCRIPTION
When the port becomes
“LOW,” the CPU enters the
backup mode.
Input port for serial clock
signals.
ы. cum
EE
ЊЕ
Input port for serial data.
Input port for a strobe signal.
This port becomes "HIGH"
every one second.

SECTION 5
MECHANICAL PARTS AND DISASSEMBLY
5-1 FRONT PARTS
NUMBER
©
©
un
®
5-2 ACCESSORIES
LABEL ORDER
| @ | 8930013320 545 Rubber
| @ | 8810006130 BiH M2.6 x 5 ZK
|| @ | 8930018550 Sponge (CG)
@ 8110004010
8210005530
8830000550
| © | 8610006480 Knob №152 [PUSH-ON/VOL] [SQUELCH]
| ® | 8610006470 | Knob №151 [TUNING CONTROL]
10 Key rubber
Blind sheet
PH BO No.0-3 M14 x 4
Variable resistor RV— 168 [PUSH-ON/VOL]
Setscrew (A) M2.6 x 5
Encoder EVQ-WQGF15 248 [TUNING CONTROL]
Sub chassis
LCD holder
LCD HLC9792-01-2300
LCD filter
Screw abbreviations
DESCRIPTION QTY.
Top cover
Front panel (inci. window)
VR nut (E)
851 Reflector
BiH: Binding head ZK: Black PH: Pan head BO: Self-tapping
f З V YO
@@@@@| ро so Јинеиневекртраненатаон |
Lo [sooo [HE vire amerma OPcO — | + |
perro
LO
[ойон
о
power
cable
ого
—
—
|
1
|
55997
Lo sone 50 meuning supp rei то
00008
ІП
ПИЕ
® 0000 @@@@ 6€
| ® | 8820000530 Mounting bolt
| © | 8850000140 | Flat washer МА NI BS
©
©
|49 [5210000040 | Fuse FGB 2A
| @ [5610000020 |AP313 3.5@ CS plug
| @ | 8930018190 851 cable tie
Се ано“ Setscrew M3 x 6
PH (A) ВО M5 x 20
[ [sesso |
Screw abbreviations РН: Pan head BS: Brass
Ni: Nickel | ВО: Self-tapping
e
©
©
Flat vvasher М5 NI BS
Spring vvasher М5 Ni

VR UNIT
(B 2462A)
LOGIC UNIT
(B 2460D)
TENKEY UNIT
(B 2461B)

FIL 2 UNIT
(B 2599A)
> (В 2598) |
з Ф
"поз :
“|
MAIN UNIT
(B 2458B)

5-3 CHASSIS PARTS
LABEL
NUMBER
o
= <
ORDER DESCRIPTION
8930005360
8930017810
2510000470
8110004020
8810006130
8930001540
8010009920
8930018370
8810003350 `
8930018570
8930018580
8850000420
8930007430
8810002110
8810003150
8010009870
8930001160
8510000020
6450000970
6510000360
6510000410
6510000360
8810002160
8810003150
8410001500
8810000240
8830000100
8810003150
8010009880
Sponge
833 SP plate
Speaker EAS-6P100SA
Bottom cover
BiH M2.6 x 5 ZK
uL
ШИН
Sponge (2)
Chassis
Tuner base cover
Setscrew (C) M3 x 5
Rubber sheet
Standoff (ВВ)
Spring washer M3 NI
Shield plate
ЕН М2.6 х 5
Setscrew (А) МЗ х 5
Back panel (top)
Ground spring
194 shield case
ANT connector HSJ0914-01-140 [ANT SEL)
ANT connector NR-DS-E 02 (БОМН2--905МН2)
ANT connector MR-DS-E 02 [0.5MHz—50MHz]
ANT connector NR-DS-E 02 (905МН2--1800МН2)
ЕН M3 x 5
Setscrew (A) МЗ х 5
MAIN heatsink
РН M3 х 8
Nuts M3
Setscrew (A) M3 x 5
Back panel (bottom)
т
rear
rep
Screw abbreviations ВІН: Binding head ZK: Black PH: Рап head МІ: Nickel FH: Flat head

SECTION 6 PARTS LIST
[VR UNIT]
ORDER
7210001840 RV-168 (RK0971112)
[PUSH-ON/OFF]
B 2462A (VR)
Variable Resistor
0910025801 | P.C. Board
[TENKEY UNIT]
ORDER
Й 0910025912 | Р.С. Воага В 24618 (TENKEY)
[LOGIC UNIT]
ORDER
1140001260 | IC hPD75304GF-084-3B 9
1140001570 | С uPD78224GJ-533-5B G
1110001550 S-8054ALB-LM-T1
1590000420
1590000420
1590000450
1530000160
1510000110
1590000420
1510000110
1530000160
1530000160
ВМ1404 (TE85R)
RN1404 (TE85R)
ЕМС4 7148
25С2712-Ү (TE85R)
2SA1162-Y (ТЕ85Ң)
ВМ1404 (TE85R)
25А1162-Ү (ТЕ85В)
25С2712-Ү (TE85R)
25С2712-Ү (TE85R)
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
1750000030
1750000020
1750000040
1750000020
Diode
Diode
Diode
Diode
155187 (TE85R)
155184 (TE85R)
155190 (TE85R)
155184 (TE85R)
CR-245
DT-26S 32.768KHZ
CSA9.21MT2
6050005090
6050005800
6060000190
Crystal
Crystal
Crystal
7030000300 | Resistor
MCR10EZHJ 2200 (221)
7030000580 | Resistor MCR10EZHJ 47 КО (473)
7030000580 | Resistor MCR10EZHJ 47 kQ (473)
7030000580 | Resistor MCR10EZHJ 47 kQ (473)
7030000620 | Resistor MCR10EZHJ 100 КО (104)
7030000580 | Resistor MCR10EZHJ 47 КО (473)
7030000580 | Resistor MCR10EZHJ 47 КО (473)
7030000580 | Resistor MCR10EZHJ 47 КО (473)
[LOGIC UNIT]
7030000580
7030000580
7030000580
7030000970
7030000580
7030000580
7030000580
7030000500
7030000580
7030000620
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000580
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
7030000380
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
MCR10EZHJ
DESCRIPTION
47 kQ (473)
47 КО (473)
47 КО (473)
22 МО (225)
47 КО (473)
47 КО (473)
47 КО (473)
10 КО (103)
47 kQ (473)
100 ка (104)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
47 КО (473)
1 ко (102)
1 KO (102)
1 КО (102)
1 КО (102)
4 КО (102)
1 ко (102)
1 КО (102)
1 КО (102)
1 КО (102)
1 КО (102)
1 RQ (102)
1 КО (102)
1 RQ (102)
1 КО (102)
1 RQ (102)
1 КО (102)
1 КО (102)
1 КО (102)
1 КО (102)
1 RQ (102)
1 ка (102)
4 КО (102)
1 ка (102)
1 КО (102)
1 КО (102)
1 КО (102)
1 КО (102)
1 ко (102) `
1 КО (102)
1 ко (102)

[LOGIC UNIT]
ORDER
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7030000380 | Resistor MCR10EZHJ 1 КО (102)
7410000520 | Resistor Array RKM7L 104Ј
7030000580 | Resistor MCR10EZHJ 47 КО (473)
7210001830 | Variable Resistor RV-167 (RK09K)
7030000410 | Resistor MCR10EZHJ 1.8 КО (182)
7030000390 | Resistor MCR10EZHJ 1.2 КО (122)
7030000550 | Resistor MCR10EZHJ 27 КО (273)
7030000590 | Resistor MCR10EZHJ 56 КО (563)
7030000660 | Resistor MCR10EZHJ 220 КО (224)
7030000620 | Resistor MCR10EZHJ 100 КО (104)
7030000580 | Resistor MCR10EZHJ 47 КО (473)
7030000660 | Resistor MCR10EZHJ 220 КО (224)
7030000660 | Resistor MCR10EZHJ 220 КО (224)
7030000620 | Resistor MCR10EZHJ 100 КО (104)
7030000550 | Resistor MCR10EZHJ 27 КО (273)
7030000500 | Resistor MCR10EZHJ 10 КО (103)
[LOGIC UNIT]
ORDER
4030004740 C2012 УВ 1H 472K- T.
4030004740 C2012 JB 1H 472K- MA
4030004740 C2012 JB 1H 472K- T-A
4030004740 C2012 JB 1H 472K- Т-А
4030004720 C2012 JB 1H 102K- T-A
4510001150 50 MS7 R47 uF
4030004740 C2012 JB 1H 472K- T-A
4030004740 C2012 JB 1H 472K- T-A
4030004740 C2012 JB 1H 472K-
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Electrolytic
Ceramic
Ceramic
Ceramic
HLC9792-01-2300
HRS-7219A
LCD
Lamp
5030000530
5080000150
EVQ-WQGF15 24B
[TUNING CONTROL]
2250000050 | Encoder
3020000130 | Lithium Battery CR3032-1T2
P.C. Board B 2460D (LOGIC)
LCD contact strip SRCN-851
0910025784
8930017610
4030004520 | Ceramic C2012 SL 1H 220J- Т-А
4030004520 | Ceramic C2012 SL 1H 220J- Т-А
4030000920 | Ceramic GRM40 CH 150Ј 50P T
4030000920 | Ceramic GRM40 CH 150J 50P T
4030004760 | Ceramic C2012 JF 1E 104Z- Т-А
4030004760 | Ceramic C2012 JF 1E 104Z- T-A
4030004610 | Ceramic C2012 SL 1H 101Ј- T-A
4030004610 | Ceramic C2012 SL 1H 101J- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K- T-A
4030004740 | Ceramic C2012 JB 1H 472K-
[MAIN UNIT]
1110000630
1110001160
1110002010
1120001690
1130001000
1120001690
1110001360
1180000590
1110002020
1120001690
1180000010
1530002210
1580000110
1530000591
1530000150
1530000591
1530000591
1530000150
1590000350
1590000350
1590000350
1530002710
1590000350
1590000370
1530000110
1530000591
1540000200
1590000350
1590000350
Transistor
FET
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
Transistor
MC3357P
BA695
MC3356P
M5223L
hPD4066BC
M5223L
hPC1242H
TA78DL10S
TA7805S
M5223L
TA78L005AP
2SC3776-D
3SK74 M
2SC2785 EL
25С2668-О
25С2785 EL
25С2785 EL
25С2668-О
ВМ1204
RN1204
RN1204
2SC2785 KL
RN1204
RN2204
2SC2458-GR
2SC2785 EL
2SD1406 Y
RN1204
RN1204
ORDER