Icom IC-A110 User manual

SERVICE
MANUAL
VHF AIR BAND TRANSCEIVER
iA110

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>
1130008830 S.IC TB31207AFN IC-A110 MAIN UNIT 5 pieces
8810009130 Screw BT M3x12 NI-ZU IC-A110 Bottom cover 10 pieces
Addresses are provided on the inside back cover for your
convenience.
INTRODUCTION
This service manual describes the latest service informa-
tion for the IC-A110 VHF AIR BAND TRANSCEIVER at the
time of publication.
MODEL
IC-A110
VERSION SYMBOL
General GEN
General-1 GEN-1
U.S.A. USA
U.S.A.-1 USA-1
To upgrade quality, any electrical or mechanical parts and
internal circuits are subject to change without notice or
obligation.
DANGER
NEVER connect the transceiver to an AC outlet or to a DC
power supply that uses more than 16 V. This will ruin the
transceiver.
DO NOT expose the transceiver to rain, snow or any liquids.
DO NOT reverse the polarities of the power supply when
connecting the transceiver.
DO NOT apply an RF signal of more than 20 dBm (100 mW)
to the antenna connector. This could damage the trans-
ceiver’s front end.
REPAIR NOTES
1. Make sure a problem is internal before disassembling
the transceiver.
2. DO NOT open the transceiver until the transceiver is
disconnected from its power source.
3. DO NOT force any of the variable components. Turn
them slowly and smoothly.
4. DO NOT short any circuits or electronic parts. An insu-
lated tuning tool MUST be used for all adjustments.
5. DO NOT keep power ON for a long time when the trans-
ceiver is defective.
6. DO NOT transmit power into a signal generator or a
sweep generator.
7. ALWAYS connect a 50 dB to 60 dB attenuator between
the transceiver and a deviation meter or spectrum ana-
lyzer when using such test equipment.
8. READ the instructions of test equipment thoroughly
before connecting equipment to the transceiver.

TABLE OF CONTENTS
SECTION 1 SPECIFICATIONS
SECTION 2 INSIDE VIEWS
SECTION 3 CIRCUIT DESCRIPTION
3 - 1 RECEIVER CIRCUITS............................................................................................................................. 3 - 1
3 - 2 TRANSMITTER CIRCUITS ..................................................................................................................... 3 - 3
3 - 3 PLL CIRCUITS......................................................................................................................................... 3 - 4
3 - 4 POWER SUPPLY CIRCUITS .................................................................................................................. 3 - 5
3 - 5 PORT ALLOCATIONS ............................................................................................................................. 3 - 5
SECTION 4 ADJUSTMENT PROCEDURES
4 - 1 PREPARATION ....................................................................................................................................... 4 - 1
4 - 2 PLL ADJUSTMENT.................................................................................................................................. 4 - 3
4 - 3 TRANSMITTER ADJUSTMENT .............................................................................................................. 4 - 3
4 - 4 RECEIVER ADJUSTMENT...................................................................................................................... 4 - 5
SECTION 5 PARTS LIST
SECTION 6 MECHANICAL PARTS AND DISSASEMBLY
SECTION 7 SEMI-CONDUCTOR INFORMATION
SECTION 8 BOARD LAYOUTS
8 - 1 FRONT UNIT ........................................................................................................................................... 8 - 1
8 - 2 MAIN UNIT............................................................................................................................................... 8 - 3
SECTION 9 BLOCK DIAGRAM
SECTION 10 VOLTAGE DIAGRAM
10 - 1 FRONT UNIT..........................................................................................................................................10 - 1
10 - 2 MAIN UNIT..............................................................................................................................................10 - 2

1 - 1
SECTION 1 SPECIFICATIONS
‘‘GENERAL
• Frequency coverage : 118.000–136.975 MHz
• Channel spacing : 25 kHz [GEN], [GEN-1]
25 kHz/8.33 kHz [USA], [USA-1]
• Type of emission : AM (6K00A3E)
• Number of memory channels : 20 channels
• Antenna connector : SO-239 (50 Ω)
• Power supply requirement : 13.75 V DC or 27.5 V DC (negative ground)
• Current drain (at 13.75 V DC) : Transmit 5.0 A
Receive max. audio output 4.0 A
stand-by 500 mA
• Frequency stability : ±5 ppm
• Usable temperature range : –30˚C to +60˚C; –22˚F to +140˚F
• Dimensions (projections not included) : 150(W) × 50(H) × 180(D) mm; 529⁄32(W) × 131⁄32(H) × 73⁄32(D) in
• Weight (with ant., BP-209) : 1.5 g; 3 lb 5 oz
‘‘TRANSMITTER
• RF output power (at 13.75 V DC) : 9.0 W (typical)
• Modulation system : Last stage modulation
• Input impedance : 600 Ω
• Modulation limitting : 70–100 %
• Audio harmonic distortion : Less than 10 % (at 85 % modulation)
• Ham and noise ratio : More than 40 dB
• Spurious emissions : –16 dBm or less (except ±62.5 kHz of operating frequency)
• Antenna requirements : Standard 50 Ωantenna with a VSWR < 3 : 1
‘‘RECEIVER
• Receive system : Double conversion superheterodyne system
• Intermediate frequencies : 1st 38.85 MHz
2nd 450 kHz
• Sensitivity : Less than 1 µV at 6 dB S/N
• Squelch sensitivity : Less than 0.35 µV at threshold
• Selectivity :
• Spurious response rejection ratio : More than 74 dBµ
• Hum and noise : More than 25 dB
• Audio output power (at 13.75 V DC) : Ext SP More than 10.0 W at 10 % distortion with an 8 Ωload
Side tone More than 100 mW at 10 % distortion with an 500 Ωload
• Audio output impedance : Ext SP 8 Ω
Side tone 500 Ω
Specifications are measured in accordance with FCC Part87 and RTCA DO-186a.
(RTCA DO-186a: Class C/E, Class 4/6)
All stated specifications are subject to change without notice or obligation.
At 25 kHz channel spacing At 8.33 kHz channel spacing
±8 kHz
±17 kHz
±25 kHz
Less than 6 dB
Less than 40 dB
Less than 60 dB
±2.778 kHz
±7.37 kHz Less than 6 dB Less than 60 dB

Low-pass filter
Antenna switching circuit
Crystal band pass filter
(FI1: FL-306)
Ceramic band pass filter
(FI3: CFWM450D)
Ceramic band pass filter
(FI4: CFG450H [USA/-1] only)
VCO circuit
APC amplifier
(Q11: 2SC4081)
Crystal band pass filter
(FI2: FL-307 [USA/-1] only)
Power complifier
(Q51: MRF137)
TCXO
(X1: CR-653)
2 - 1
SECTION 2 INSIDE VIEWS
¡MAIN UNIT
<TOP VIEW>
AF amplifier
(IC37: TDA7233D)
RX 1st mixer
(Q2: 3SK184)
2nd IF IC
(IC40: TA31136FN)
PLL IC
(IC2: TB31207AFN)
PWM modulator
(IC44: µPC311)
EEPROM
(IC4: BA3308F)
Low-pass filter
Antenna switching circuit
AF power amplifier
(Q92,93: 2SK2414)
<BOTTOM VIEW>

3 - 1
SECTION 3 CIRCUIT DESCRIPTION
3-1 RECEIVER CIRCUITS
3-1-1 ANTENNA SWITCHING CIRCUIT
The antenna switching circuit functions as a low-pass filter
while receiving. However, its impedance becomes very high
while D1 and D2 are turned ON. Thus transmit signals are
blocked from entering the receiver circuits. The antenna
switching circuit employs a λ⁄4type diode switching system.
The passed signals are then applied to the RF amplifier cir-
cuit.
Received signals are passed through the low-pass filter (L2,
L3, L48, C1–C6, C330, C331). The filtered signals are
applied to the λ⁄4type antenna switching circuit (D1, D2).
3-1-2 RF CIRCUIT
The RF circuit amplifies signals within the range of frequen-
cy coverage and filters out-of-band signals.
The signals from the antenna switching circuit are amplified
at the RF amplifier (Q1) after passing through the RX atten-
uator (D38, L52, R295), bandpass filter (L27, L8, C10,
C164, C165, C21) and two-stage tunable bandpass filters
(the first filter is consisted of D6, L9, C342, C405 and the
second filter is consisted of D37, L49, C23, C406). The
amplified signals are applied to the 1st mixer circuit (Q2,
gate 1) after out-of-band signals are suppressed at the
another two-stage tunable bandpass filters (D7, L10, C28,
C407 and D8, L11, C61, C553).
The tunable bandpass filters (D6–D8, D37) which employ
varactor diodes, track the filters and are controlled by the
PLL IC (IC2) via the tune buffer amplifier (Q79) using
“TUNE” signal. These diodes tune the center frequency of
an RF passband for wide bandwidth receiving and good
image response rejection.
3-1-3 1ST MIXER AND 1ST IF CIRCUITS
The 1st mixer circuit converts the received signal into a fixed
frequency of the 1st IF signal with a PLL output frequency.
By changing the PLL frequency, only the desired frequency
will pass through a crystal filter at the next stage of the 1st
mixer.
The filtered signals from the RF circuit are mixed at the 1st
mixer (Q2) with a 1st LO signal coming from the VCO circuit
to produce a 38.85 MHz 1st IF signal.
The 1st IF signal is applied to a pair of crystal filter [Wide
mode: FI1, Narrow mode: FI2] to suppress out-of-band sig-
nals. The filtered 1st IF signal is applied to the IF amplifier
(Q3), then applied to the 2nd mixer circuit (IC40, pin 16).
3-1-4 2ND MIXER AND 2ND IF CIRCUITS
The 2nd mixer circuit converts the 1st IF signal into a 2nd IF
signal. A double conversion superheterodyne system (which
converts receive signals twice) improves the image rejection
ratio and obtains stable receiver gain.
The 1st IF signal from the IF amplifier is applied to the 2nd
mixer section of the IF IC (IC2, pin 16), and is mixed with the
38.4 MHz 2nd LO signal to be converted into a 450 kHz 2nd
IF signal.
A2nd LO signal (38.4 MHz) is produced at the PLLcircuit by
tripling it’s reference frequency (12.8 MHz).
The 2nd IF signal from the 2nd mixer (IC2, pin 3) passes
through a ceramic filter [Wide mode: FL3, Narrow mode:
FI4] to remove unwanted heterodyned frequencies. It is then
amplified at the 2nd IF amplifiers (Q4–Q6).
• Receiver construction
118.000–136.975 MHz
RF
AMP
D1–D3 Q1 Q2
1st mixer
1st LO signal
79.15–98.125 MHz
from VCO circuit
BPF
Tuned Tuned XTAL
2nd IF
IC
LPF Ant SW
D38 D6,
D37
"TUNE" signal
BPF
D7,
D8 38.85 MHz
2nd LO signal
38.4 MHz
BPF
BPF
FI1 [Wide],
FI2 [Narrow]
XTAL
450 kHz
BPF
FI3 [Wide],
FI4 [Narrow]
ATT
IF
AMP
Q4,
Q5
AM
DET IF
AMP
Q6
to AF circuit
IF
AMP
Q3
Tripler
Q83, Q84
12.8 MHz signal
from TCXO (X1)
3

3 - 2
3-1-5 AM DETECTOR CIRCUIT (MAIN UNIT)
The AM detector circuit converts the 2nd IF signal into AF
signals.
The amplified 2nd IF signal from the 2nd IF amplifier (Q6) is
applied to theAM detector circuit (Q7). It is then detected for
conversioin to AF signals.
The AF signals are applied to the AF circuit.
3-1-6 AF CIRCUIT (MAIN UNIT)
The AF circuit amplifies the demodulated AF signals to drive
a speaker.
The AF signals are passed through the low pass filter (IC31,
pin 1), and then applied to the MOD/AF select swtich (IC22,
pin 7).
The AF signals are amplified at the AF amplifier (IC42, pin
3), and are then passed through the RMUTE swtich (IC6)
and electric-volume switch (IC13, pins 14, 15) to control AF
level. The level controlled signals are then applied to the
mute switch (IC30, pin 1).
While in using the internal speaker or connecting outer
speaker jack, the AF signals are applied to the MOD/AF
swtich (IC48, pin 7) via the AF mute swtich (IC28). The
applied AF signals are compared at the PWM IC (IC44) with
the reference signal from the triangular wave oscillator
(IC45), and are then converted to the PWM wave form. The
AF signals are amplified at the FET driver (IC47) and AF
power amplifiers (Q92, Q93). The amplified AF signals are
applied to the SP mute switch (D66, Q101, Q100) via the
line filter (L62–L64, L81, C456, C457, C462, C463). The fil-
tered AF signals are applied to the internal speaker via the
[EXT SP] jack (J7).
While in connecting the head set, the AF signals are ampli-
fied at theAF power amplifier (IC37, pin 8), and then applied
to the ACC connector (J6, pin 6) via the impedance conver-
tor (T1).
3-1-7 SQUELCH CIRCUIT
(MAIN AND FRONT UNITS)
The squelch circuit cuts out AF signals when receiving no
modulated signal. When no voice modulation is included in
the signal, the squelch circuit cuts out the AF signal by com-
paring voice audio and noise audio components in the AF
detected signals.
The 2nd IF signal from the IF IC (MAIN unit; IC40, pin 3)
passes through the 450 kHz ceramic filter (Wide mode: FI3,
Narrow mode: FI4) to remove out-of-band signals, and then
applied to the IF amplifier.
A portion of the amplified 2nd IF signal from the IF amplifier
(MAIN unit; Q4) is applied to the IF amplifier section on the
IF IC (MAIN unit; IC40, pin 5). The amplified signal passes
through the RSSI section, and are then applied to the
squelch amplifier (MAIN unit; IC11, pin 1) as “RSSI” signal.
The amplified “RSSI” signal at IC11 is output from pin 4 as
“SQLI” signal, and is then applied to the CPU (FRONT unit;
IC1, pin 74). The CPU analyzes the noise condition and out-
puts the “AFMUT” signal via the output expander IC
(FRONT unit; IC5) to switch the SP mute switch (Q100,
Q101), etc. When connecting the head set, “RMUTE” signal
from the CPU via the output expander IC (FRONT unit; IC5)
is applied to the RMUTE circuit (MAIN unit; IC6, Q80, Q81).
Even when the squelch is closed, the mute switch (IC30)
opens at the moment of emitting beep tones.
3-1-8 AGC CIRCUIT (MAIN UNIT)
The AGC (Automatic Gain Control) circuit reduces signal
fading and keeps the audio output level constant.
AF signal from the AM detector circuit (Q7) is amplified at
AGC amplifiers (Q77, Q78). The amplified signal from Q77
is applied to the IF amplifier (Q4, Q5). The other amplified
signal from Q78 is applied to the RF amplifier (Q1), and the
RX attenuator (D38) via the buffer amplifier (Q73).
These amplifiers reduce the amplifier gain of IF amplifiers
(Q4, Q5) and the RF amplifier (Q1) while receiving a strong
signal.
• AGC circuit D38
From the ant. RX ATT
D7
AM
DETECTOR
XTAL
BPF IF
AMP
Q3
"IF AGC" signal
"RF AGC" signal
RF
AMP
Q1
Q73
Q2
1st mixer
Buffer
BPF IF
AMP
Q4, Q5
to AF circuit
IF
AMP
Q6
Q77
Q78
AGC
AMP
IC40
2nd mixer
AGC
AMP

3 - 3
3-2 TRANSMITTER CIRCUITS
3-2-1 MICROPHONE AMPLIFIER CIRCUIT
(MAIN UNIT)
The microphone amplifier circuit amplifies audio signals
from the microphone, within +6 dB/octave pre-emphasis
characteristics (300 Hz–3 kHz), to a level needed for the
modulation circuit.
The AF signals from the microphone are applied to the
IN/EXT MIC switch (IC16, pin 7) via the “MIC” signal. When
using a headset, “EXTMIC” signal are applied to the exter-
nal switch (IC16, pin 6) via R336 to adjust the external
microphone level. The output signal from IC16 (pin 1) are
applied to the ALC amplifier (IC4, pin 9) via R110 to adjust
the microphone sensitivity.
The output signal from IC4 (pin 7) are amplified at the AF
amplifier (IC5), and then applied to the MOD/AF switch via
the high-pass filter (IC51) and low-pass filter (IC19) to filter
out RF components. The filtered signals are applied to the
modulation circuit.
3-2-2 MODULATION CIRCUIT (MAIN UNIT)
The modulation circuit modulates the VCO oscillating signal
(RF signal) using the microphone AF signal.
The audio signals are passed through the MOD/AF switch
(IC48, pin 6) via the modulation depth adjustment pot R121.
The signals are converted to the PWM wave form at the
PWM (Pulse-Width-Modulation) IC (IC44, pin 3), and power
amplified at the FET driver (IC47, pin 5) and power MOS
FET (Q92, Q93). The power-amplified signals are passed
through the line filter (L62–L64, L81, C456, C457, C462,
C463, C468), and then applied to the drain of power ampli-
fier (Q51) for the last stage modulation.
3-2-3 DRIVE/POWER AMPLIFIER CIRCUITS
(MAIN UNIT)
The amplifier circuit amplifies the VCO oscillating signal to
the output power level.
The signal from the buffer amplifiers (Q14, Q15) is passed
through the TX/RX switch (D11), and is amplified at the pre-
amplifier (Q42), pre-drivers (Q20, Q21) and the power
amplifier (Q51) to obtain 9 W of RF power.
The amplified signal is passed through the antenna swtich-
ing circuit (D3) and low-pass filter, and is then applied to the
antenna connector.
3-2-4 APC CIRCUIT (MAIN UNIT)
The APC (Automatic Power Control) circuit protects the
drive and power amplifiers from mismatched output loads.
The APC detector circuit (D4, D5) detects forward and
refrected signals respectively. The combined voltage is at a
minimum level when the antenna is matched at 50 Ωand is
increased when it is mismatched.
The detected voltage is applied to one of the APC controller
inputs (IC50, pin 3) and a power setting voltage is applied to
the other input (pin 1). When the antenna impedance is mis-
matched, the detected voltage exceeds the reference volt-
age. Thus the bias voltage of the pre-drivers is decreased.
• APC control circuit
PWR
AMP
APC
CNT
Q51
Q21
Q98 Q11
Q20
"MOD V" signal from the AF power amplifiers
(MAIN unit; Q92, Q93)
Pre-amplified signal
(from MAIN unit; Q42)
IC50
Q99
"TMUT" signal from the
expander IC
(Front unit; IC5; pin 14)
to the Antenna
Power detector circuit
L75
R153
(Power adjustment)
R2R3
R150
R148
R151
T8
R149
C14 C13
L6
C17 C16
C18 C19
C139
D4
D5
APC
AMP
PWR
CNT
PRE
DRIVE PRE
DRIVE

3 - 4
3-3 PLL CIRCUIT
3-3-1 GENERAL (MAIN UNIT)
A PLL circuit provides stable oscillation of the transmit fre-
quency and receive 1st LO frequency. The PLL output com-
pares the phase of the divided VCO frequency to the refer-
ence frequency. The PLL output frequency is controlled by
the divided ratio (N-data) of a programmable divider.
The PLL circuit contains of the TX-VCO and RX-VCO cir-
cuits. The oscillated signals are applied to the buffer ampli-
fiers (Q43, Q12) then applied to the PLL IC (IC2, pin 8). IC2
is a dual PLL IC which controls VCO circuits for TX and RX.
The PLL circuit, using a one chip PLL IC (IC2), directly gen-
erates the transmit frequency and receive 1st IF frequency
with VCOs. The PLL sets the divided ratio based on serial
data from the CPU on the FRONT unit and compares the
phases of VCO signals with the reference oscillator fre-
quency. The PLL IC detects the out-of-step phase and out-
put from pin 9 for TX and RX, respectively. The reference
frequency (12.8 MHz) is oscillated at X1.
3-3-2 TX LOOP
The generated signal at the TX-VCO (Q44, D64) enters the
PLL IC (IC2, pin 8), and is divided at the programmable
divider section and is then applied to the phase detector
section.
The phase detector compares the input signal with a refer-
ence frequency, and then outputs the out-of-phase signal
(pulse-type signal) from pin 9.
The pulse-type signal is converted into DC voltage (lock
voltage) at the loop filter (R61, R62, C59, C60), and then
applied to the varactor diode (D64) of the TX-VCO to stabi-
lize the oscillated frequency.
3-3-3 RX LOOP
The generated signal at the RX-VCO (Q59, D65) enters the
PLL IC (IC2, pin 8), and is divided at the programmable
divider section. The divided signal is then applied to the
phase detector section.
The phase detector compares the input signal with a refer-
ence frequency, and then outputs the out-of-phase signal
(pulse-type signal) from pin 9.
The pulse-type signal is converted into DC voltage (lock
voltage) at the loop filter (R61, R62, C59, C60), and then
applied to the varactor diode (D65) of the RX-VCO to stabi-
lize the oscillated frequency. The lock voltage is also used
for the receiver circuit for the bandpass filter center frequen-
cy. The lock voltage from the PLL IC (IC2, pin 9) passes
through the low-pass filter, and is applied to the tune buffer
amplifier (Q79). The amplified signal is applied to the RF
bandpass filters (D7, D8 and D6, D37) via the tune adjust-
ment pot (R59).
3-3-4 VCO CIRCUIT
The VCO outputs from Q44 (TX) and Q59 (RX) are buffer
amplified at Q43, and are applied to the buffer amplifiers
(Q14, Q15). The amplified signal is applied to the T/R switch
(D10, D11). The receive LO signal is applied to the 1st mixer
circuit (Q2), and the transmit signal is applied to the pre-
amplifier (Q42).
A portion of the VCO signal is amplified at the buffer ampli-
fier (Q12), and then fed back to the PLL IC (IC2, pin 8).
• PLL circuit
Shift register
Prescaler
Phase
detector
Loop
filter
Programmable
counter
Programmable
divider
TCXO (X1)
12.8 MHz
Q44,
D64
TX VCO
RX VCO Buff. D10
D11
Q12
Q43
3
4
5SCK
IC2 (PLL IC)
SO
PLSTB
to transmitter circuit
to 1st mixer circuit (Q2)
14
9
LPF
8
Q59,
D65
Buff.
Q14 Buff.
Q15
TX/RX
switch
Buff.
3
Q83, Q84
to the RF BPF
(D7 and D8, D6 and D37)
38.4 MHz 2nd LO signal
to the 2nd IF IC (IC40, pin 2)
Tune
buff. R59
(RF BPF adjustment)
Q79

3 - 5
3-4 POWER SUPPLY CIRCUITS
VOLTAGE LINES (MAIN UNIT)
LINE
VCC
8V
+5V
CPU5V
T8
R8
DESCRIPTION
The voltage from the external DC power con-
nector which is controlled by the power switch
([VOL] control).
Common 8 V converted from the VCC line by the
+8 V regulator circuit (IC29). The output voltage
is applied to the +5 V regulator circuit (IC7), the
ripple filter (Q16), and etc.
Common 5 V converted from the 8V line by the
+5V regulator (IC7) and +5V current amplifier
(Q22, Q23, D15) circuits. The output voltage is
applied to the electric volume IC (IC13), buffer
amplifiers (Q68, Q69), and etc.
Common 5 V converted from the VCC line by +8
V regulator (Q82, D35) and +5 V regulator cir-
cuits (IC26). The output 5 V voltage is applied to
the CPU (FRONT unit; IC1).
8 V for transmitter circuits regulated by the +8 V
regulator circuit (IC29).
8 V for receiver circuits regulated by the +8 V
regulator circuit (IC29).
3-5 PORT ALLOCATIONS
3-5-1 OUTPUT EXPANDER IC (FRONT unit: IC5)
Pin
number
4, 5
6
7
11
12
13
14
Port
name
LED1,
LED2
TRC
R/T
SMUT
AFMUT
RMUT
TMUT
Description
Outputs backlight control signals.
Outputs control signal to the MOD/AF
swtich (MAIN unit: IC48, pin 5) and
etc.
High:While transmitting.
Outputs control signal to the TX/RX
switch (MAIN unit: Q58, pin 1) for
VCO.
Low: While transmitting.
Outputs AF mute swtich (MAIN unit:
IC30, Q86, Q75, Q74, D43) control
signal.
Low: While squelched.
Outputs control signal to the mute
switch (MAIN unit; Q100, Q101, D66)
for speaker amplifier, and etc.
Low: While the speaker output is
muted.
Outputs RMUTE switch (IC6) control
signal.
Low: While squelched.
Outputs T8 regulator control signal.
Low: When TX is muted.
LED1
Low
High
Low
High
LED2
Low
Low
High
High
Backlight condition
Light OFF
No establishment
Light ON, Dimmer ON
Light ON, Dimmer OFF

Description
Input ports for the key matrix.
Input port for the CPU reset signal.
Outputs control signal for the power
supply circuit.
High:Power is ON.
Outputs beep audio signals.
Outputs clock signal to the EEPROM
(FRONT unit; IC4, pin 6).
Outputs data signal to the EEPROM
(FRONT unit; IC4, pin 5).
Outputs chip select signal to the EEP-
ROM (FRONT unit; IC4, pin 1).
Input port for the [DIAL] control signal.
Outputs control signal to the expander
IC (FRONT unit; IC5, pin 15).
Outputs strobe signals to the
expander IC (FRONT unit; IC5, pin 1).
Outputs chip select signal to the elec-
tric volume (MAIN unit; IC13).
Low: While volume is controlled.
Outputs serial clock to the PLL IC
(MAIN unit; IC2, pin 3), the expander
IC (FRONT unit; IC5, pin 3) and the
electric volume (MAIN unit; IC13, pin
8).
Input port for the data signal from the
EEPROM (FRONT unit; IC4, pin 2).
Outputs serial data to the PLL IC
(MAIN unit; IC2, pin 4), the expander
IC (FRONT unit; IC5, pin 2) and the
electric volume (MAIN unit; IC13, pin
9).
Outputs strobe signals to the PLL IC
(MAIN unit; IC2, pin 5).
Outputs 2nd IF filter’s select signal.
High:While wide is selected.
Input port for the unlock signal from
the PLL IC (MAIN unit; IC2, pin 11).
Low: PLL is unlocked.
Input port for the cloning signal.
Output port for the cloning signal.
Input port for the POWER switch.
Low: While POWER switch is
pushed
Input port for the squelch signal.
Port
name
KR4
RESET
PSWC
BEEP
ECK
ESO
ECS
DLA,
DLB
OE
EXSTB
VCS
SCK
ESI
SO
PLSTB
FISW
UNLK
CLIN
CLO
PSW
SQLI
Pin
number
1, 2, 3,
5, 8, 12
9
10
11
13
14
15
16,
17
18
19
20
21
22
23
24
25
69
70
71
72
74
3 - 6
Pin
number
76
77
78–80
Port
name
HANG
PTT
KR1–KR2
Description
Input port for the microphone hanger
detection signal.
Low: Microphone on hook.
Input port for the PTT switch.
High:While PTT switch is pushed.
Input ports for the key matrix.
3-5-2 CPU (FRONT unit; IC1)

4-1 PREPARATION
• Some versions may need the optional CS-A110 CLONING SOFTWARE and OPC-478, OPC-592 CLONING CABLE for setting the
adjustment frequency.
• All adjustments must be performed on the [Wide] mode.
■REQUIRED TEST EQUIPMENT
4 - 1
SECTION 4 ADJUSTMENT PROCEDURES
■VFO CHANNEL ID LIST
• Channel spacing: 8.33/25 kHz [USA/USA-1] • Channel spacing: 25 kHz [GEN/GEN-1]
EQUIPMENT
DC power supply
RF power meter
(terminated type)
Frequency counter
Modulation analyzer
Distortion meter
External speaker
GRADE AND RANGE
Output voltage : 13.75 V DC
Current capacity : 10 A or more
Measuring range : 1–50 W
Frequency range : 50–300 MHz
Impedance : 50 Ω
SWR : Less than 1.2 : 1
Frequency range : 0.1–300 MHz
Frequency accuracy: ±1 ppm or better
Sensitivity : 100 mV or better
Frequency range : DC–300 MHz
Measuring range : 0 to 100 %
Frequency range : 1 kHz±10 %
Measuring range : 1 to 100 %
Impedance : 8 Ω
EQUIPMENT
DC voltmeter
Digital multimeter
Audio generator
Standard signal
generator (SSG)
AC millivoltmeter
Attenuator
Terminator
GRADE AND RANGE
Input impedance : 50 kΩ/V DC or better
Input impedance : 10 MΩ/V DC or better
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
Frequency range : 0.1–300 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
Measuring range : 10 mV–10 V
Power attenuation : 40 or 50 dB
Capacity : 50 W or more
Impedance : 50 Ω
Capacity : 50 W or more
Operating Freq.
(MHz)
118.0000
118.0000
118.0083
118.0167
118.0250
118.0250
118.0333
118.0417
118.0500
118.0500
118.0583
118.0667
118.0750
118.0750
118.0833
118.0917
118.1000
118.1000
etc
Channel spacing
(kHz)
25
8.33
8.33
8.33
25
8.33
8.33
8.33
25
8.33
8.33
8.33
25
8.33
8.33
8.33
25
8.33
Channel ID
(Displayed Freq.)
118.000
118.005
118.010
118.015
118.020
118.030
118.035
118.040
118.050
118.055
118.060
118.065
118.070
118.080
118.085
118.090
118.100
118.105
Operating Freq.
(MHz)
118.0000
118.0250
118.0500
118.0750
118.1000
etc
Channel spacing
(kHz)
25
25
25
25
25
Channel ID
(Displayed Freq.)
118.000
118.025
118.050
118.075
118.100

4 - 2
to the external speaker jack
to the antenna connector
Speaker (8 Ω)
to the microphone connector
Cloning connection
Standard signal generator (SSG)
0.1–300 MHz
–127 to –17 dBm (0.1 µV to 32 mV)
RF power meter
50 Ω, 1–50 W
Audio generator
300 Hz to 3 kHz
AC millivoltmeter
Modulation
analyzer Attenuator
40 dB or 50 dB Power supply
DC 13.75V, 10 A
Distortion
meter
AC millivoltmeter
CAUTION!
DO NOT transmit
while an SSG is
connected to the
antenna connector.
Frequency
counter
Personal
computer
OPC-592
to an RS-232C port
OPC-478
DB9 female plug
(incl. level converter circuit)
■CONNECTION
12345678
Audio generator
Pin 4 (PTT)
• MIC JACK PIN CONNECTION
Pin 7 (GND)
AC millivoltmeter
Pin 5
(MICE ) Pin 6
(MIC )

4 - 3
4-2 PLL ADJUSTMENT
Vdd
VOLTAGE
PLL LOCK
VOLTAGE
TUNE
VOLTAGE
REFERENCE
FREQUENCY
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE POINT
UNIT LOCATION UNIT ADJUST
1
1
2
1
1
• Operating frequency :
118.000 MHz
• Receiving
• Operating frequency :
118.000 MHz
• Receiving
• Transmitting
• Operating frequency :
118.000 MHz
• Receiving
• Operating frequency :
136.950 MHz
• Connect an RF power meter or a
50 Ωdummy load to the antenna
connector.
• Transmitting
MAIN
MAIN
MAIN
Rear
panel
Connect a digital
multi-meter to drain
terminal of Q51.
Connect a digital
multi-meter to the
check point CP2.
Connect a digital
multi-meter to the
check point CP1.
Loosely couple the
frequency counter
to the antenna con-
nector.
13.5 V
0.5 V
0.5 V
0.7 V
136.9500 MHz
MAIN
MAIN
MAIN
MAIN
R392
L41
L40
R59
X1
4-3 TRANSMITTER ADJUSTMENT
OUTPUT
POWER
MODULATION
DEPTH
HEAD SET
MODULATION
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE POINT
UNIT LOCATION UNIT ADJUST
1
1
2
1
• Operating frequency :
127.000 MHz
• No audio applied to the [MIC]
jack.
• Transmitting
• Operating frequecy :
127.000 MHz
• Connect an audio generator to
the [MIC] jack and set as :
1 kHz/10 mVrms
• Set a modulation analyzer as :
HPF : OFF
LPF : OFF
De-emphasis : OFF
Detector : (P–P)/2
• Pre-set R110 and R121 on the
MAIN unit to the center position.
• Transmitting
• Set an audio generator as:
1 kHz/1 mVrms
• Transmitting
• Operating frequency :
127.000 MHz
• Connect an audio generator to
the [EXT MIC] jack and set as :
1 kHz/1 mVrms
• Transmitting
Rear
panel
Rear
panel
Rear
panel
Connect an RF
power meter to the
antenna connector.
Connect a modula-
tion analyzer to the
antenna connector
through an attenua-
tor.
Connect a modula-
tion analyzer to the
antenna connector
through an attenua-
tor.
9.0 W
90 %
30 %
30 %
MAIN
MAIN
MAIN
R150
R121
R110
R336

4 - 4
DC power supply
13.75 V/10 A
R392
Vdd voltage adjustment
Q51
Vdd voltage check point
R336
Head set modulation
adjustment
CP1
TUNE voltage check point
R59
TUNE voltage adjustment
L40
PLL lock voltage
adjustment for TX
L41
PLL lock voltage
adjustment for RX
X1
Reference frequency
adjustment
CP2
PLL lock voltage
check point
R121
R110
Modulation depth
adjustment
R150
Output power adjustment
J6, pin 3
Audio input point
Audio
generator
pin 5 ( PTT)
pin 3 ( MIC)
pin 4 ( GND)
pin 2 ( MICE)

4 - 5
4-4 RECEIVER ADJUSTMENT
“SQUELCH ADJUSTMENT” must be performed at “SQUELCH ADJUSTMENT MODE”.
RX
SENSITIVITY
SQUELCH
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE POINT
UNIT LOCATION UNIT ADJUST
1
2
1
2
3
• Operating frequency :
118.000 MHz
• Pre-set L9, L10, L11, L49 on the
MAIN unit to max. CCW.
• Connect an SSG to the antenna
connector and set an SSG as :
Level : 1.0 µV*
(–107 dBm)
Modulation : ± 1 kHz
Mod. depth : 30 %
• Receiving
• Operating frequency :
136.975 MHz
• Receiving
• Enter the “Squelch adjustment
mode”.
1): Program 118.000 MHz into
memory channel.
2): Turn power OFF.
3): While pushing [SQL], [TS],
[SCAN], turn power ON.
• Connect an SSG to the antenna
connector and set an SSG as :
Level : 0.18 µV*
(–122 dBm)
Modulation : OFF
• Receiving
• Set an SSG as :
Level : 5.6 µV*
(–92 dBm)
Modulation : OFF
Rear
panel
Front
panel
Connect anAC milli-
voltmeter and dis-
tortion meter with 8
Ωload to the exter-
nal [SP] jack.
Display
Maximum AF output
level
Maximum AF output
level
MAIN
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
L9, L10,
L11, L49
R59
• Verify the display indicates “sqADJ02”.
NOTE: If the display shows other, turn
[MAIN DIAL] to select
“sqADJ02”.
• Push the [SCAN] key to set the thresh-
old level.
• Verify the display indicates “sqADJ25”.
• Push the [SCAN] key to set the tight
level.
• Turn power OFF to cancell the “Squelch adjustment mode”.
NOTE: Until turn power OFF, “Squelch adjustment mode” is not cancelled, and once pushing the [SCAN] key,
display indicates “sqADJ02” (threshold level adjustment) or “sqADJ25” (tight level adjustment) repeat-
edly

4 - 6
DC power supply
13.75 V/10 A
L9
R59
L49
L10
L11
RX sensitivity adjustment

5 - 1
S.=Surface mount
IC1 1140008780 S.IC HD6433823A19D
IC2 1130009110 S.IC S-80942ANMP-DD6-T2
IC3 1130007110 S.IC TC7W04FU (TE12L)
IC4 1130008670 S.IC 25LC160T-I/SN
IC5 1130007510 S.IC BU4094BCFV-E1
Q1 1590000440 S.TRANSISTOR DTA143ZUA T106
Q2 1510000880 S.TRANSISTOR 2SA1622-6-TL
Q3 1530003280 S.TRANSISTOR 2SC4211-6-TL
Q4 1590001980 S.TRANSISTOR XP4315 (TX)
Q5 1590000440 S.TRANSISTOR DTA143ZUA T106
Q6 1590000680 S.TRANSISTOR DTC114EUA T106
Q7 1590000680 S.TRANSISTOR DTC114EUA T106
D5 1790001280 S.DIODE MA111 (TX)
D6 1750000130 S.DIODE DA204U T107
X1 6060000600 S.CERAMIC PBRC 3.68 AR
L1 6200003960 S.COIL MLF1608A 1R0K-T
L2 6200003540 S.COIL MLF1608D R22K-T
R1 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R2 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R3 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R4 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R5 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R6 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R7 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R8 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R9 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R10 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R11 7030003370 S.RESISTOR ERJ3GEYJ 271 V (270 Ω)
R12 7030003350 S.RESISTOR ERJ3GEYJ 181 V (180 Ω)
R13 7030003350 S.RESISTOR ERJ3GEYJ 181 V (180 Ω)
R14 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R15 7030003590 S.RESISTOR ERJ3GEYJ 183 V (18 kΩ)
R16 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 kΩ)
R17 7030003620 S.RESISTOR ERJ3GEYJ 333 V (33 kΩ)
R18 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R19 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R20 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R21 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R22 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R23 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R24 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R26 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R27 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R28 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R29 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R30 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R31 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R32 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R33 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R34 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R36 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R37 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R38 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R41 7030003610 S.RESISTOR ERJ3GEYJ 273 V (27 kΩ)
R42 7030003610 S.RESISTOR ERJ3GEYJ 273 V (27 kΩ)
R43 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R44 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R45 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
R46 7030003610 S.RESISTOR ERJ3GEYJ 273 V (27 kΩ)
R47 7030003580 S.RESISTOR ERJ3GEYJ 153 V (15 kΩ)
C1 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C2 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C3 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C4 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C5 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C6 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C7 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A
C8 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A
C9 4030008560 S.CERAMIC C1608 CH 1H 300J-T-A
C10 4030008560 S.CERAMIC C1608 CH 1H 300J-T-A
C11 4030008890 S.CERAMIC C1608 JB 1C 273K-T-A
C12 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C13 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C14 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C15 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C16 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C17 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C18 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C19 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C20 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C21 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C22 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C23 4550006480 S.TANTALUM TEMSVA 1C 475M-8L
C24 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C25 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C26 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C27 4550006250 S.TANTALUM TEMSVA 1A 106M-8L
C28 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C29 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C30 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C31 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C32 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C33 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C34 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C35 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C36 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
J1 6510020510
S.CONNECTOR FH12-40S-0.5SV
J2 6450001470 CONNECTOR 95003-2881
DS1 5030001740 LCD HLC7453-012400
DS2 5040002030 S.LED CL-170Y-CD-T
DS3 5040002030 S.LED CL-170Y-CD-T
DS4 5040002030 S.LED CL-170Y-CD-T
DS5 5040002030 S.LED CL-170Y-CD-T
DS6 5040002030 S.LED CL-170Y-CD-T
DS7 5040002030 S.LED CL-170Y-CD-T
S1 2250000420 ENCODER EVQB2CFC620B
SP1 2510000880 SPEAKER SME-45W
W1 7120000470 JUMPER ERDS2T0
W2 7120000470 JUMPER ERDS2T0
W3 7030003860 S.JUMPER ERJ3GE JPW V
W4 7030003860 S.JUMPER ERJ3GE JPW V
W6 8900007680 CABLE OPC-741 (N:40 L:55)
EP1 0910051553 PCB B 5319C
EP2 8930037960 LCD CONTACT SRCN-1705 ZSS
REF ORDER DESCRIPTION
NO. NO.
[FRONT UNIT] REF ORDER DESCRIPTION
NO. NO.
[FRONT UNIT]
SECTION 5 PARTS LIST

5 - 2
S.=Surface mount
IC2 1130008830 S.IC TB31207AFN (EL)
IC4 1110003670 S.IC BA3308F-T1
IC5 1110002750 S.IC TA75S01F (TE85R)
IC6 1130004200 S.IC TC4S66F (TE85R)
IC7 1180000800 S.IC S-81350HG-KD-T1
IC11 1110002400 S.IC NJM2107F-TE1
IC13 1130008370 S.IC TC9260F (HR)
IC15 1110005010 S.IC MC33063AD
IC16 1130006220 S.IC TC4W53FU (TE12L)
IC17 1130006220 S.IC TC4W53FU (TE12L) [USA/-1] only
IC18 1130006220 S.IC TC4W53FU (TE12L) [USA/-1] only
IC19 1110003780 S.IC NJM2902V-TE1
IC22 1130006220 S.IC TC4W53FU (TE12L)
IC26 1180000420 S.IC TA78L05F (TE12R)
IC28 1130004200 S.IC TC4S66F (TE85R)
IC29 1180002010 S.REG BA08FP-E2
IC30 1130004200 S.IC TC4S66F (TE85R)
IC31 1110002750 S.IC TA75S01F (TE85R)
IC37 1110003250 S.IC TDA7233D (TDA7233D013TR)
IC40 1110003200 S.IC TA31136FN (EL)
IC41 1110005030 IC TA8208H
IC42 1110002750 S.IC TA75S01F (TE85R)
IC43 1190001210 S.IC HIP4081AIB-E2
IC44 1110005130 S.IC µPC311G2
IC45 1110005100 S.IC NJM072BM-TE1
IC46 1110005010 S.IC MC33063AD
IC47 1190001210 S.IC HIP4081AIB-E2
IC48 1130006220 S.IC TC4W53FU (TE12L)
IC50 1110002750 S.IC TA75S01F (TE85R)
IC51 1110002750 S.IC TA75S01F (TE85R)
Q1 1580000420 S.FET 3SK184-R (TX)
Q2 1580000420 S.FET 3SK184-R (TX)
Q3 1530002600 S.TRANSISTOR 2SC4215-O (TE85R)
Q4 1530002600 S.TRANSISTOR 2SC4215-O (TE85R)
Q5 1530002600 S.TRANSISTOR 2SC4215-O (TE85R)
Q6 1530002600 S.TRANSISTOR 2SC4215-O (TE85R)
Q7 1530003280 S.TRANSISTOR 2SC4211-6-TL
Q11 1530002280 S.TRANSISTOR 2SC4081 T107 S
Q12 1530002560 S.TRANSISTOR 2SC4403-3-TL
Q14 1530002560 S.TRANSISTOR 2SC4403-3-TL
Q15 1530002930 S.TRANSISTOR 2SC4228 (M) -T1 R45
Q16 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q20 1560001100 S.FET 2SK3074 (TE12L)
Q21 1560001060 S.FET 2SK3075 (TE12L)
Q22 1530003280 S.TRANSISTOR 2SC4211-6-TL
Q23 1520000460 S.TRANSISTOR 2SB1132 T100 R
Q33 1590001980 S.TRANSISTOR XP4315 (TX)
Q42 1530002920 S.TRANSISTOR 2SC4226-T2 R25
Q43 1530002920 S.TRANSISTOR 2SC4226-T2 R25
Q44 1530002920 S.TRANSISTOR 2SC4226-T2 R25
Q51 1590002840 FET MRF137
Q52 1510000880 S.TRANSISTOR 2SA1622-6-TL
Q53 1590000980 S.TRANSISTOR DTB123EK T147
Q58 1590001810 S.TRANSISTOR XP1113 (TX)
Q59 1530002920 S.TRANSISTOR 2SC4226-T2 R25
Q68 1590001980 S.TRANSISTOR XP4315 (TX)
Q69 1590000980 S.TRANSISTOR DTB123EK T147
Q70 1590000980 S.TRANSISTOR DTB123EK T147
Q71 1590001940 S.TRANSISTOR DTC144EE TL
Q72 1590001980 S.TRANSISTOR XP4315 (TX)
Q73 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q74 1520000200 S.TRANSISTOR 2SB798-T2 DK
Q75 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q77 1540000520 S.TRANSISTOR 2SD1819A (TX) R
Q78 1540000520 S.TRANSISTOR 2SD1819A (TX) R
Q79 1560000530 S.FET 2SK880-GR (TE85R)
Q80 1590000720 S.TRANSISTOR DTA144EUA T106
Q81 1590000430 S.TRANSISTOR DTC144EUA T106
Q82 1530002280 S.TRANSISTOR 2SC4081 T107 S
Q83 1530002380 S.TRANSISTOR 2SC4215-Y (TE85R)
Q84 1530002380 S.TRANSISTOR 2SC4215-Y (TE85R)
Q86 1590001980 S.TRANSISTOR XP4315 (TX)
Q87 1560001120 S.FET 2SK2414-Z-E1
Q88 1560001120 S.FET 2SK2414-Z-E1
Q89 1590001170 S.TRANSISTOR XP1501-(TX) .AB
Q90 1510001020 TRANSISTOR 2SA1471R
Q91 1560001120 S.FET 2SK2414-Z-E1
Q92 1560001120 S.FET 2SK2414-Z-E1
Q93 1560001120 S.FET 2SK2414-Z-E1
Q94 1590002870 S.FET FW215-TL
Q96 1590000430 S.TRANSISTOR DTC144EUA T106
Q97 1590000430 S.TRANSISTOR DTC144EUA T106
Q98 1510000770 S.TRANSISTOR 2SA1586-GR (TE85R)
Q99 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q100 1590002870 S.FET FW215-TL
Q101 1590000430 S.TRANSISTOR DTC144EUA T106
Q102 1530002280 S.TRANSISTOR 2SC4081 T107 S
D1 1750000510 S.DIODE UM9401F
D2 1750000510 S.DIODE UM9401F
D3 1750000510 S.DIODE UM9401F
D4 1790001670 S.DIODE RB706F-40T106
D5 1790001670 S.DIODE RB706F-40T106
D6 1720000370 S.VARICAP HVU350TRF
D7 1720000370 S.VARICAP HVU350TRF
D8 1720000370 S.VARICAP HVU350TRF
D10 1790000620 S.DIODE MA77 (TX)
D11 1790000620 S.DIODE MA77 (TX)
D14 1790001330 S.ZENER MA8036-L (TX)
D15 1790001280 S.DIODE MA111 (TX)
D26 1790001340 S.DIODE DE5SC6M-4061
D27 1790001280 S.DIODE MA111 (TX)
D28 1750000580 S.DIODE 1SV307 (TPH3) [USA/-1] only
D29 1750000580 S.DIODE 1SV307 (TPH3)
D30 1750000580 S.DIODE 1SV307 (TPH3)
D31 1750000580 S.DIODE 1SV307 (TPH3) [USA/-1] only
D35 1730002460 S.ZENER MA8330-M (TX)
D36 1790000700 DIODE DSA3A1
D37 1720000370 S.VARICAP HVU350TRF
D38 1750000530 S.DIODE 1SV271 (TPH3)
D43 1750000260 S.DIODE 1SS352 (TPH3)
D44 1730002320 S.ZENER MA8051-M (TX)
D50 1750000530 S.DIODE 1SV271 (TPH3)
D51 1750000530 S.DIODE 1SV271 (TPH3)
D52 1750000530 S.DIODE 1SV271 (TPH3)
D53 1790001250 S.DIODE MA2S111-(TX)
D54 1790001250 S.DIODE MA2S111-(TX)
D55 1790000670 S.DIODE SB07-03C-TB
D56 1790001340 S.DIODE DE5SC6M-4061
D57 1790000670 S.DIODE SB07-03C-TB
D62 1790000670 S.DIODE SB07-03C-TB
D64 1720000370 S.VARICAP HVU350TRF
D65 1720000370 S.VARICAP HVU350TRF
D66 1790000670 S.DIODE SB07-03C-TB
FI1 2010002400 S.MONOLITH FL-306 (38.850 MHz)
FI2 2010002410 S.MONOLITH FL-307 (38.850 MHz) [USA/-1] only
FI3 2020001540 CERAMIC CFWM450D
FI4 2020001660 CERAMIC CFG450H [USA/-1] only
FI5 4580000110 S.FILTER ACF321825-223-T
FI6 2040000500 LC BNX-002-01
X1 6050010830 S.XTAL CR-657 (12.800 MHz)
L2 6110001670 COIL LA-253
L3 6110001740 COIL LA-263
L4 6110001610 COIL LA-244
L5 6110001610 COIL LA-244
L6 6110001550 COIL LA-235
L7 6170000230 COIL LW-25
L8 6200003350 S.COIL ELJNC R27K-F
L9 6150005000 S.COIL LS-527
L10 6150005000 S.COIL LS-527
L11 6150005000 S.COIL LS-527
L12 6200002710 S.COIL ELJFC 1R8K-F
L14 6200001630 S.COIL ELJNC R10K-F
L15 6200003300 S.COIL ELJNC R22K-F
L17 6200003290 S.COIL ELJNC R12K-F
L19 6200005730 S.COIL ELJRE 39NG-F
L20 6200002380 S.COIL LQN 1A 56NJ04
L21 6200008400 S.COIL 0.35-1.6-6TL 36N
L22 6200005740 S.COIL ELJRE 47NG-F
L23 6200008480 S.COIL 0.30-1.4-5TR 25N
L26 6200003590 S.COIL EXCCL3225U1
L27 6200003350 S.COIL ELJNC R27K-F
L31 6200007000 S.COIL ELJRE 82NG-F
L33 6200004480 S.COIL MLF1608D R82K-T
L35 6200008270 S.COIL 0.26-1.0-5TL 17N
REF ORDER DESCRIPTION
NO. NO.
[MAIN UNIT] REF ORDER DESCRIPTION
NO. NO.
[MAIN UNIT]

5 - 3
S.=Surface mount
L36 6140000670 COIL LR-89
L39 6200004480 S.COIL MLF1608D R82K-T
L40 6200009080 S.COIL MC152-E558CN-100025=P3
L41 6200004850 S.COIL MC152-E558CN-100024
L42 6200004480 S.COIL MLF1608D R82K-T
L43 6200004480 S.COIL MLF1608D R82K-T
L48 6110001600 COIL LA-243
L49 6150005000 S.COIL LS-527
L50 6110001730 COIL LA-262
L52 6200004480 S.COIL MLF1608D R82K-T
L53 6190001500 COIL HK-08S070-1310
L54 6200007000 S.COIL ELJRE 82NG-F
L55 6200003310 S.COIL ELJFC R33M-F
L56 6200003310 S.COIL ELJFC R33M-F
L57 6200003310 S.COIL ELJFC R33M-F
L60 6200005010 S.COIL NL 252018T-100J
L61 6190001510 COIL HK-10S080-1210
L62 6190001500 COIL HK-08S070-1310
L63 6190001500 COIL HK-08S070-1310
L64 6190001500 COIL HK-08S070-1310
L65 6200005010 S.COIL NL 252018T-100J
L67 6200008760 S.COIL 0.26-0.9-9TR 30N
L68 6200009120 S.COIL 0.20-0.7-4TR 8.8N
L69 6200008270 S.COIL 0.26-1.0-5TL 17N
L70 6110001520 COIL LA-232
L71 6110002110 COIL LA-382
L72 6200002040 S.COIL NL 252018T-101J
L73 6200002040 S.COIL NL 252018T-101J
L75 6200004480 S.COIL MLF1608D R82K-T
L77 6200009140 S.COIL NL 252018T-6R8J
L78 6190001520 S.COIL ZBFS5101-PT
L79 6190001520 S.COIL ZBFS5101-PT
L80 6190001520 S.COIL ZBFS5101-PT
L81 6190001520 S.COIL ZBFS5101-PT
L82 6200004450 S.COIL ELJFC 6R8M-F
L83 6200004880 S.COIL ELJFC 3R3K-F
L84 6200004880 S.COIL ELJFC 3R3K-F
L85 6200004450 S.COIL ELJFC 6R8M-F
L86 6190001520 S.COIL ZBFS5101-PT
L87 6200006990 S.COIL ELJRE 56NG-F
R1 7030006070 S.RESISTOR ERJ12YJ101U (100 Ω)
R2 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R3 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R9 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R11 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R12 7030003730 S.RESISTOR ERJ3GEYJ 274 V (270 kΩ)
R13 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R14 7030003770 S.RESISTOR ERJ3GEYJ 564 V (560 kΩ)
R15 7030003280 S.RESISTOR ERJ3GEYJ 470 V (47 Ω)
R17 7030003280 S.RESISTOR ERJ3GEYJ 470 V (47 Ω)
R18 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R19 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R20 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R21 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R24 7030003670 S.RESISTOR ERJ3GEYJ 823 V (82 kΩ)
R25 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R26 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R27 7030003470 S.RESISTOR ERJ3GEYJ 182 V (1.8 kΩ)
R28 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R30 7030003590 S.RESISTOR ERJ3GEYJ 183 V (18 kΩ)
R31 7030003460 S.RESISTOR ERJ3GEYJ 152 V (1.5 kΩ)
R34 7030003470 S.RESISTOR ERJ3GEYJ 182 V (1.8 kΩ)
R35 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R36 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R37 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)
R38 7030003460 S.RESISTOR ERJ3GEYJ 152 V (1.5 kΩ)
R40 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R41 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R42 7030003460 S.RESISTOR ERJ3GEYJ 152 V (1.5 kΩ)
R43 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R45 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)
R46 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R48 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)
R49 7030003750 S.RESISTOR ERJ3GEYJ 394 V (390 kΩ)
R50 7030003430 S.RESISTOR ERJ3GEYJ 821 V (820 Ω)
R59 7310003600 S.TRIMMER EVM-1XSX50 B54 (503)
R61 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R62 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R63 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R64 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R65 7030003220 S.RESISTOR ERJ3GEYJ 150 V (15 Ω)
R66 7030003220 S.RESISTOR ERJ3GEYJ 150 V (15 Ω)
R67 7030003220 S.RESISTOR ERJ3GEYJ 150 V (15 Ω)
R68 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R69 7030003700 S.RESISTOR ERJ3GEYJ 154 V (150 kΩ)
R70 7030003400 S.RESISTOR ERJ3GEYJ 471 V (470 Ω)
R71 7030003280 S.RESISTOR ERJ3GEYJ 470 V (47 Ω)
R72 7030003660 S.RESISTOR ERJ3GEYJ 683 V (68 kΩ)
R73 7030003370 S.RESISTOR ERJ3GEYJ 271 V (270 Ω)
R74 7030003630 S.RESISTOR ERJ3GEYJ 393 V (39 kΩ)
R75 7030003340 S.RESISTOR ERJ3GEYJ 151 V (150 Ω)
R76 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R77 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R78 7030003300 S.RESISTOR ERJ3GEYJ 680 V (68 Ω)
R79 7030003340 S.RESISTOR ERJ3GEYJ 151 V (150 Ω)
R80 7030003300 S.RESISTOR ERJ3GEYJ 680 V (68 Ω)
R85 7030003620 S.RESISTOR ERJ3GEYJ 333 V (33 kΩ)
R86 7030003360 S.RESISTOR ERJ3GEYJ 221 V (220 Ω)
R87 7030003330 S.RESISTOR ERJ3GEYJ 121 V (120 Ω)
R95 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R99 7030003270 S.RESISTOR ERJ3GEYJ 390 V (39 Ω)
R101 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R108 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R110 7310003610 S.TRIMMER EVM-1XSX50 B14 (103)
R111 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R112 7030003270 S.RESISTOR ERJ3GEYJ 390 V (39 Ω)
R113 7030003620 S.RESISTOR ERJ3GEYJ 333 V (33 kΩ)
R114 7510001100 S.THERMISTOR NTCCM1608 4LH 104KC
R115 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R116 7030003770 S.RESISTOR ERJ3GEYJ 564 V (560 kΩ)
R117 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R118 7030003690 S.RESISTOR ERJ3GEYJ 124 V (120 kΩ)
R119 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R120 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R121 7310003580 S.TRIMMER EVM-1XSX50 B15 (104)
R122 7030003630 S.RESISTOR ERJ3GEYJ 393 V (39 kΩ)
R123 7030003630 S.RESISTOR ERJ3GEYJ 393 V (39 kΩ)
R124 7030003630 S.RESISTOR ERJ3GEYJ 393 V (39 kΩ)
R126 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R127 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R128 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R131 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R132 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R148 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R149 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R150 7310003610 S.TRIMMER EVM-1XSX50 B14 (103)
R151 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R152 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R153 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 kΩ)
R174 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)
R181 7030003700 S.RESISTOR ERJ3GEYJ 154 V (150 kΩ)
R182 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)
R183 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R184 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R186 7030003700 S.RESISTOR ERJ3GEYJ 154 V (150 kΩ)
R187 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R188 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R192 7030003660 S.RESISTOR ERJ3GEYJ 683 V (68 kΩ)
R193 7030003400 S.RESISTOR ERJ3GEYJ 471 V (470 Ω)
R194 7030003490 S.RESISTOR ERJ3GEYJ 272 V (2.7 kΩ)
R208 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R209 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R211 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 kΩ)
R212 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R218 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R219 7030000210 S.RESISTOR MCR10EZHJ 39 Ω(390)
R220 7030003550 S.RESISTOR ERJ3GEYJ 822 V (8.2 kΩ)
R221 7030000520 S.RESISTOR MCR10EZHJ 15 kΩ
R223 7030003620 S.RESISTOR ERJ3GEYJ 333 V (33 kΩ)
R224 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R225 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R226 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R228 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R229 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R230 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
[USA/-1] only
R231 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
[USA/-1] only
R232 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R233 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R234 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R235 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
REF ORDER DESCRIPTION
NO. NO.
[MAIN UNIT] REF ORDER DESCRIPTION
NO. NO.
[MAIN UNIT]