Icom IC-F1610 User manual

SERVICE
MANUAL
VHF FM TRANSCEIVER
iF1610

INTRODUCTION
This service manual describes the latest service informa-
tion for the IC-F1610 VHF FM TRANSCEIVER.
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.
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>
1110003571 S.IC MC3372SVM IC-F1610 MAIN UNIT 5 pieces
8810008660 Screw BT M3x8 NI-ZU IC-F1610 Bottom cover 10 pieces
Addresses are provided on the inside back cover for your
convenience.
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 40 dB to 50 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 VIEW
SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS
SECTION 4 CIRCUIT DESCRIPTION
4 - 1 RECEIVER CIRCUITS............................................................................................................................. 4 - 1
4 - 2 TRANSMITTER CIRCUITS...................................................................................................................... 4 - 2
4 - 3 PLL CIRCUITS......................................................................................................................................... 4 - 3
4 - 4 POWER SUPPLY CIRCUITS .................................................................................................................. 4 - 4
4 - 5 PORT ALLOCATIONS ............................................................................................................................. 4 - 5
SECTION 5 ADJUSTMENT PROCEDURES
5 - 1 PREPARATION ....................................................................................................................................... 5 - 1
5 - 2 INITIAL SET MODE ................................................................................................................................ 5 - 2
5 - 3 PLL ADJUSTMENT.................................................................................................................................. 5 - 3
5 - 4 RECEIVER ADJUSTMENT...................................................................................................................... 5 - 4
5 - 5 TRANSMITTER ADJUSTMENT............................................................................................................... 5 - 5
SECTION 6 PARTS LIST
SECTION 7 MECHANICAL PARTS AND DISASSEMBLY
SECTION 8 SEMI-CONDUCTOR INFORMATION
SECTION 9 BOARD LAYOUTS
9 - 1 FRONT UNIT........................................................................................................................................... 9 - 1
9 - 2 MAIN UNIT............................................................................................................................................... 9 - 3
SECTION 10 BLOCK DIAGRAM
SECTION 11 VOLTAGE DIAGRAM
11 - 1 FRONT UNIT.......................................................................................................................................... 11 - 1
11 - 2 MAIN UNIT............................................................................................................................................. 11 - 2

All stated specifications are subject to change without notice or obligation.
Mesurement method
Frequency coverage
Number of channels
Type of emission
Operating temperature range
Power supply voltage
Current drain TX max. power
(approx.) RX max. audio
stand-by
Antenna connector
Dimensions (proj. not included)
Weight
Output power
Modulation system
Max. freqequency deviation
Frequency error
Spurious emissions
Adjacent channel power
Audio frequency response
Audio harmonic distortion
Residual modulation
(with CCITT filter)
Limitting
Microphone connector
Intermediate frequency
Sensitivity
Squelch sencitivity
Adjcent channel selectivity
Spurious response
Intermoduration
Audio frequency response
Hum and noise
(with CCITT filter)
Audio output power
External SP connector
ETS 300 086
146–174 MHz
128 (16 ch ×8 banks)
16K0F3E (25 kHz; Wide)
8K50F3E (12.5 kHz; Narrow)
–20˚C to +55˚C
13.2 V DC (negative ground)
7.0 A
1.2 A
700 mA
SO-239 (50 Ω)
150(W) ×50(H) ×180(D) mm
1.5 kg
25 W
Variable reactance frequency modulation
±5.0 kHz (Wide)
±2.5 kHz (Narrow)
±5 PPM
0.25 µW
70 dB (Wide)
60 dB (Narrow)
+2 dB to –5 dB of 6 dB/octave
range from 300 Hz to 3000 Hz (Wide)/2550 Hz (Narrow)
5 % (40 % Dev.)
45 dB minimum: 55 dB typical (Wide)
40 dB minimum: 50 dB typical (Narrow)
70–100 % of modulation
8-pin modular (600 Ω)
1st: 21.75 MHz
2nd: 455 kHz
–2 dBµV emf (at 20 dB SINAD)
–6 dBµV emf (Threshold)
70 dB (Wide)
60 dB (Narrow)
70 dB
70 dB typical
+2 dB to –5 dB of 6 dB/octave
range from 300 Hz to 3000 Hz (Wide)/2550 Hz (Narrow)
45 dB minimum: 55 dB typical (Wide)
40 dB minimum: 50 dB typical (Narrow)
3.5 W at 10% distortion with a 4 Ωload
2-conductor 3.5 (d) mm (1⁄8")/4 Ω
SECTION 1 SPECIFICATIONS
1 - 1
RECEIVER TRANSMITTER GENERAL

2 - 1
SECTION 2 INSIDE VIEW
MAIN unit
Power module*
(IC11 : SC-1188)
AF power amplifier
(IC8 : LA4425A)
VCO circuit
PLL reference TCXO
(X501 : CR-573)
PLL IC*
(IC12 : MC145190F)
D/A converter
(IC5 : M62363FP)
FRONT unit
CPU
(IC20 : HD64F3437F16)
EEPROM
(IC27 : X25650S8I-2-5)
Low-pass filter circuit
1st mixer*
(Q2 : 3SK166)
RF amplifier*
(Q1 : 3SK116)
1st IF filter
(FI1 : FL-264)
FM IF IC*
(IC1 : MC3372SVM)
Discriminator
(X2 : CDBC455CX16)
Microphone amplifier
circuit
(IC22 : µPC5023GR)
*Located under side
of the point

SECTION 3 DISASSEMBLY AND OPTION INSTRUCTIONS
3 - 1
• Opening cover
Remove 4 screws from bottom cover.
• OPC-617 connection
• Installation location
Install option units.
OPC-617 ACC CABLE: J4
UT-96 5-TONE UNIT
or UT-105 SmarTrunk IITM Logic Board
EX-1761 MEMORY EXPANSION UNIT: J7
OPC-822 INTERFACE CABLE: J501
PIN ASSIGNMENT
Break the jack plate using cutting pliers to connect the
OPC-617.
Pin
No. Terminal name Description Specification
1 DIM Backlight control input +5 to +30 V for dark
2 PAAF AF output for public address and Ext SP func-
tions
0 to 330 mV rms/
47 kΩ
3 DISC AF output for a terminal
unit 330 mV rms/100 kΩ
4 IN AF input for a terminal unit 330 mV rms/1200 bps
5 PTT PTT control input 0 V for transmit
6 HORN Grounded when receiving
the specified call Less than 50 mA when grounded
7 PAAF – Ground for PAAF –––
8 DISC – Ground for terminal output –––
9 IN – Ground for terminal input –––
Connect to J4
Jack plate
OPC-617
OPC-822
UT-96
UT-105
EX-1761
15
69
J6

3 - 2
£Attach the ‘RMK-1 rear unit attachment’ to the trans-
ceiver main unit using the supplied screws.
¢Remove 4 screws from the attachment to open the
front plate.
∞Connect an optional separation cable OPC-609 (1.9 m)
to the inside of the front plate and tighten the cable lug
using the screw.
§Re-attach the front plate.
• RMK-1 connection
¡Remove 3 allen-socket bolts from the front plate using
an allen-wrench (1/32 in).
™Separate the front unit from the transceiver main unit.
¶Remove 4 screws from the ‘RMK-1 front unit attach-
ment’ to open the rear plate.
•Connect the other end of the optional separation cable
to the atachement and tighten the cable lug using the
screw.
ªRe-attach the rear plate.
ºAttach the front unit and attachment with the 3
removed allen-socket bolts.
Front plate
Supplied screws
with the RMK-1
RMK-1 rear unit
attachment
Separation
RMK-1 front unit attachment
Separation
cable
Rear plate

4 - 1
SECTION 4 CIRCUIT DESCRIPTION
4-1 RECEIVER CIRCUITS
4-1-1 ANTENNA SWITCHING CIRCUIT
The antenna switching circuit functions as a low-pass filter
while receiving and a resonator circuit while transmitting.
The circuit does not allow transmit signals to enter receiver
circuits.
Received signals enter the antenna connector (J1) and pass
through the low-pass filters (L1–L3, C2, C3, C8–C10). The
filtered signals are passed through the λ⁄4type antenna
switching circuit (D5, D6, L5) and then applied to the RF cir-
cuit.
4-1-2 RF CIRCUIT
The RF circuit amplifies signals within the range of frequen-
cy coverrage and filters out-of-band signals.
The signals from the antenna swiching circuit pass through
the tunable bandpass filter (D7, L8). The filtered signals are
amplified at the RF amplifier (Q1) and then enter the anoth-
er three-stage bandpass filters (D9–D11, L12, L13) to sup-
press unwanted signals. The filtered signals are applied to
the 1st mixer circuit.
D7, D9–D11 employ varactor diodes, that are controlled by
the PLL lock voltage, to track the bandpass filter. These var-
actor diodes tune the center frequency of an RF pass band
for wide bandwidth receiving and good image response
rejection.
4-1-3 1ST MIXER AND IST IF CIRCUITS
The 1st mixer circuit converts the received signal to fixed
frequency of the 1st IF signal with the PLL output frequency.
By changing the PLL frequency, only the desired frequency
will pass through a pair of crystal filters at the next stage of
the 1st mixer.
The RF signals from the bandpass filter are mixed with the
1st LO signals, which come from the Rx VCO circuit via the
buffer amplifier (Q3), at the 1st mixer circuit (Q2) to produce
a 21.75 MHz 1st IF signal. The 1st IF signal is passed
through the matching circuit (L15, L52) and a pair of crystal
filters (FI1) in order to obtain selection capability and to pass
only the desired signals. The filtered signal is applied to the
2nd IF circuit after being amplified at the 1st IF amplifier
(Q4).
4-1-4 2ND IF AND DEMODULATOR CIRCUITS
The 2nd mixer circuit converts the 1st IF signal into a 2nd IF
signal. The double-conversion superheterodyne system
(which convert receive signals twice) improves the image
rejection ratio and obtains stable receiver gain.
The 1st IF signal from the IF amplifier (Q4) is applied to the
2nd mixer section of the FM IF IC (IC1, pin 16) and is then
mixed with the 2nd LO signal for conversion into 455 kHz
2nd IF signal.
IC1 contains the 2nd mixer, 2nd local oscillator, limiter ampli-
fier, quadrature detector, active filter and noise amplifier cir-
cuit. The local oscillator section and X1 generates the
21.295 MHz 2nd LO signal.
The 2nd IF signal from the 2nd mixer (IC1 pin 3) passes
through the ceramic filters (FI3 and FI4) during narrow chan-
nel spacing selection or passes through FI4 (bypassing FI3)
only during wide channel spacing selection to suppress
unwanted heterodyne frequencies signals via the N/W
switches (D501, D502).
The filtered signal is applied to the quadrature detector sec-
tion in the FM IF IC to demodulate the 2nd IF signal into AF
signals using the ceramic discriminator (X2) after being
amplified at the limiter amplifier section (pin 5). The demod-
ulatedAF signals are output from pin 9 of the IC and applied
to the AF circuit via the receiver mute citcuit.
The N/W switches (D501, D502) select a ceramic filter (FI3
or bypass), and the other N/W switch (Q61) adjusts the input
level to the FM IF IC (IC1, pin 8) to switch the bandwidth
depending on the NWC signal from the CPU (IC20, pins 57)
When NWC signal is high, bandwidth setting is wide.
• 2nd IF and demodulator circuits
FI3
2nd IF filter
Noise
amp.
Limiter
amp.
Quad.
detector
AF signals
+8V
X2
Discriminator
Mixer
X1
21.295 MHz
1st IF from the IF amplifier (Q4)
RSSI signal to the CPU (IC20)
87 5 FI4 3 1, 2
16139
IC1
MC3372
Active
filter
1110

4 - 2
4-1-5 AF AMPLIFIER CIRCUIT
The AF amplifier circuit amplifies the demodulated AF sig-
nals to drive a speaker.
The AF signals from the FM IF IC (IC1, pin 9) are amplified
at the AF amplifier (IC2) and are then applied to the high-
path filter circuit (IC3a/b). The high-pass filter characteristics
are controlled by the HFSW signal from the CPU (IC20, pin
60). When HFSW signal is high, the cut-off frequency is
shifted higher to remove CTCSS or DTCS signals.
The filtered AF signals from the high-pass filter (IC3, pin 1)
are passed through the de-emphasis circuit (R68, C74) with
frequency characteristics of –6 dB/octave, and are then
applied to the electronic volume controller (IC7, pin 2) via
the AF mute switch (Q6).
The output AF signals from the electronic volume controller
(IC7, pin 9) are applied to the AF power amplifier (IC8) to
drive the speaker.
4-1-6 RECEIVE MUTE CIRCUITS
• NOISE SQUELCH
Asquelch circuit cuts outAF signals when no RF signals are
received. By detecting noise components in the AF signals,
the squelch circuit switches the AF mute switch.
Some noise components in theAF signals from the FM IF IC
(IC1, pin 9) are passed through the active filter section in the
IC (pins 10, 11). The N/W switch (Q62) adjusts the input
noise level to the IC between wide and narrow bandwidths.
When NWC signal which is applied to Q62 is High, band-
width setting is wide.
The noise signals from FM IF IC (IC1, pin 11) are passed
through the level controller (IC5, pins 21, 22) and are then
converted into the pulse-type signals (NOIS) at the noise
detector circuit (Q9, Q10).
The NOIS signal from the noise detector (Q10) is applied to
the CPU (IC20, pin 32). The CPU then analyzes the noise
condition and controls the AMUT (pin 56) and SP (pin 79)
ports to toggle the AF mute switches (Q6, Q7).
• CTCSS AND DTCS
The tone squelch circuit detects AF signals and opens the
squelch only when receiving a signal containing a matching
subaudible tone (CTCSS or DTCS). When tone squelch is in
use, and a signal with a mismatched or no subaudible tone
is received, the tone squelch circuit mutes the AF signals
even when noise squelch is open.
A portion of the AF signals from the AF amplifier (IC2) pass
through the low-pass filter (Q503) and are then applied to
the CTCSS decoder inside the CPU (IC20, pin 43) via the
CDEC line to control the AMUT and SP ports.
4-2 TRANSMITTER CIRCUITS
4-2-1 MICROPHONE AMPLIFIER CIRCUIT
The microphone amplifier circuit amplifies audio signals
from the microphone, within +6 dB/octave pre-emphasis
characteristics, to a level needed for the modulation circuit.
AF signals (MIC) from the FRONT unit via J5 (pin 10) are
applied to the audio switch (IC25). While transmitting, the
MCON signal from the CPU is high and the AF signals is
passed through IC25 to the microphone amplifier circuit.
The AF signals from IC25 are applied to the microphone
amplifier (IC22) via the pre-amplifier (IC21b). The amplified
signals are applied to the limiter amplifier in IC22.
The entered signals are pre-emphasized with +6dB/octave
at a limiter amplifier, then passed through a splatter filter
section in IC22. The output signals from pin 8 pass through
the level controller (IC5, pins 4, 3) and are then applied to
the modulation circuit (D23, D46).
The N/W switch is connected to the input lines of the splat-
ter filter circuit (N/W switch; Q65) and buffer amplifier
(IC503) (N/W switch; IC-502). The N/W switches (Q65,
IC502) are controlled by the /NWC signal from Q505 to
adjust filter cut-off frequency (by Q65) and maximum fre-
quency deviation (by IC502).
• AF circuit
Speaker
AMUTE SP
Volume control signal
Amp.
AF mute
switch AF mute switch AF power amp.
Q6 Q7
IC7IC2
IC9
29
AF signal
from IC1
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
HPF
HFSW
IC3
IC22
IC5
• MICROPHONE AMPLIFIER CIRCUIT
11
4
7
8
6
13
16
5
12
14
15
HPF
Limiter
MIC
Splatter
Q65
W/N
switch
IC-502 W/N switch
/NWC
DTMF
SIGOUT
AMOD
Ref.
/NWC
Tx dev.
DTCS bal.
Tone dev.
Beep
SQL
1
4
13
21
12
22
TX PO
11
14
2
9
10
3Modulator
circuit
Ref.
osc.

4 - 3
4-2-2 MODULATION CIRCUIT
The modulation circuit modulates the VCO oscillating signal
(RF signal) using the microphone AF signals.
The AF signals from the level controller (IC5) change the
reactance of varactor diodes (D23 and D46) to modulate the
oscillated signal at the Tx VCO circuit (Q23). The modulated
VCO signal is amplified at the buffer amplifiers (Q19, Q20)
and is then applied to the drive amplifier circuit via the T/R
switch (D17).
The CTCSS/DTCS signals from the CPU (IC20, pin 44) are
amplified at the buffer amplifier (Q504). The amplified sig-
nals pass through the level controller (IC5, pin 1, 2) and are
then applied to VCO circuit via the low-pass filter (IC21a).
When signals (/NWC), which is applied to N/W switch (Q64),
are High, Q64 changes the input level of the level controller
(IC5), thus narrowing the bandwidth.
4-2-3 DRIVE/POWER AMPLIFIER CIRCUITS
The amplifier circuit amplifies the VCO oscillationg signal to
an output power level.
The signal from the buffer amplifier (Q20) passes through
the Tx/Rx switch (D17), and is amplified by the driver ampli-
fiers (Q17–Q15) and the power module (IC11) to obtain 25
W of RF power.
The amplified signal is passed through the antenna switch-
ing circuit (D4), low-pass filter andAPC detector, and is then
applied to the antenna connector.
The collector voltages for drivers (Q16) come from the
MT8V regulator (Q38, D28). The transmit mute switch (Q39)
controls the regulator when transmit mute is necessary.
4-2-4 APC CIRCUIT
The APC circuit protects the power module (IC11) from a
mismatched output load and stabilizes the output power.
The APC detector circuit detects forward signals and reflec-
tion signals at D3 and D1 respectively. The combined volt-
age is at a minimum level when the antenna impedance is
matched at 50 Ωand is increased when it is mismatched.
The detected voltage is applied to the inverse amplifier
(IC10b, pin 5), and the power setting voltage (PSET) is
applied to the other input (IC10b, pin 6) via the amplifier
(IC10a). When antenna impedance is mismatched, the
detected voltage exceeds the power setting voltage. Then
the output voltage of the inverse amplifier (IC10b, pin 7) con-
trols the input current of the power module (IC11) to reduce
the output power via the APC driver (Q11).
4-3 PLL CIRCUITS
4-3-1 PLL CIRCUIT
A PLL circuit provides stable oscillation of the transmit fre-
quency and the receive 1st LO frequency. The PLL circuit
consists of the PLL IC (IC12), charge pump, loop filter and
reference oscillator and employs a pulse swallow counter.
Oscillated signals from the VCO via the buffer amplifier
(Q19, Q18) are prescaled in the PLL IC (IC12, pin 11) based
on the divided ratio (N-data). The PLL IC detects the out-of-
step phase using the reference frequency and outputs it
from pin 6 (IC12). The output signal is passed through the
charge pump (Q30–Q33) and loop filters (R154/C181,
R153/C179), and is then applied to the VCO circuit as the
lock voltage.
The accelerator switch (IC13a/b) selects the effective loop
filter to accelerate the PLL lock up speed.
FOR
REV
Drive
amp. Power amp.
PSET
to antenna
connector
• APC CIRCUIT
IC10a
3
2
+
–
1
IC10b
5
6
+
–
7
Tx signal
from Q16
VCC
Q11 D3 D1
IC11Q15

4 - 4
The lock voltage is also used for the receiver tunable band-
pass filters to match the filter’s center frequency to the
desired receive frequency. The lock voltage is amplified at
the buffer amplifier (Q29) and is then applied to the band-
pass filters (D7, D9–D11).
4-3-2 VCO CIRCUIT
The VCO circuit contains a separate Rx VCO (Q21, D19,
D20, D40, D41) and Tx VCO (Q23, D21, D22, D42, D43).
The oscillated signal is amplified at the buffer amplifiers
(Q19, Q20) and is then applied to the Tx/Rx switch (D17,
D18). Then the receive 1st LO (Rx) signal is applied to the
1st mixer (Q2) via the amplifier (Q3) and the transmit (Tx)
signal to the driver (Q17).
A portion of the signal from the buffer amplifier (Q19) is fed
back to the PLL IC (IC12, pin 11) via the buffer amplifier
(Q18) as the comparison signal.
• PLL circuit
Shift register
Prescaler
Phase
detector
Loop
filter
Programmable
counter
Programmable
divider
Buffer
Buffer
Buffer Q20
Q18
Q19
17
18
19
PSTB
IC12 (PLL IC)
PCK
PDA
to transmitter circuit
to 1st mixer circuit
D17
D18
20
611
X501
12.6 MHz
Rx-VCO
Q21,
D19, D20, D40, D41
Tx-VCO
Q23,
D21, D22, D42, D43
Charge
pump
LINE
HV
VCC
CPU5V
+5V
+8V
R8V
T8V
MT8V
DESCRIPTION
The voltage from the external power connector.
Same voltage as the HV line passed through the
power control circuit (Q12) controlled by PWON
signal from the CPU (IC20, pin 77).
Common 5 V converted from the HV line at the
5V regulator circuit (IC17). This voltage is sup-
plied to the CPU regardless of the power switch.
Common 5 V converted from the VCC line at the
+5V regulator circuit (Q42, Q43, D30) using the
CPU5V line voltage as the reference.
Common 8 V converted from the VCC line at the
+8V regulator circuit (IC16).
Receive 8 V converted from the VCC line at the
R8V regulator circuit (Q36, D27) using the +8V
line voltage as the reference and controlled by
VRX signal from the CPU (IC20, pin 76).
Transmit 8 V converted from the VCC line at the
T8V regulator circuit (Q40, D29) using the +8V
line voltage as the reference and controlled by
VTX signal from the the CPU (IC20, pin 75).
Transmit 8 V converted from the VCC line at the
MT8V regulator circuit (Q38, D28) using the +8V
line voltage as the reference and controlled by
TMUT signal from the the CPU (IC20, pin 62).
4-4 POWER SUPPLY CIRCUIT
VOLTAGE LINE

4 - 5
4-5 PORT ALLOCATIONS
CPU (IC20)
20
21
22
24
25
30
31
32
38
40
43
44
47, 48
49
50
51
53
55
56
25
57
60
62
PTTO
PTTI
AFON
BUSY
POSW
MMUT
RMUT
NOIS
AFV
RSSI
CDEC
CENC
ECS2,
ECS1
ECK
ESI
ESO
BEEP
MCON
AMUT
NWC
HFSW
PA
TMUT
Outputs the PTT control signal.
Low : While transmitting
Input port for the PTT control signal
from PTTO port.
Input port for the AF amplifier ON sig-
nal from an optional unit.
Outputs busy signal for an optional
unit.
Input port for the power switch.
Low : While power switch is pushed
Input port for microphone audio mute
control signal from an optional unit.
Input port for receive audio mute con-
trol signal from an optional unit.
Input port for noise signals (pulse-
type) for noise squelch operation.
Input port for the volume control.
Input port for receiving signal strength
level detection.
Input port for CTCSS/DTCS decoding.
Output ports for CTCSS/DTCS sig-
nals.
Output ports for EEPROM select sig-
nals.
ECS1: For internal EEPROM (IC27)
ECS2: For optional EEPROM
Outputs clock signal for EEPROMs.
Input port for serial signal from
EEPROMs.
Outputs serial signal for EEPROMs.
Outputs beep audio signals.
Outputs mic. audio mute control signal
to the audio switch (IC25).
High : While DTMF signals are being
transmitted, etc.
Outputs the AF mute switch (Q6) con-
trol signal.
High :
While squelched, etc.
Outputs N/W switch control signals.
High : While wide is selected
Outputs high-pass filter’s characteris-
tics select signal.
High : During CTCSS operation
Outputs mic. audio select signal to the
audio switch (IC25).
High : While “Public-address” func-
tion is ON
Outputs MT8V regulator circuit (Q38,
D27) control signal.
High : While transmit is muted.
64
65
66
67
68
69
72
73
75
76
77
78
79
80
82–89
93
99
DSTB
DDA
DCK
PSTB
PDA
PCK
UNLK
PLLT
VTX
VRX
PWON
PASP
SP
DIM
DTR1–
DTR4,
DTC4–
DTC1
HORN
SIFT
Outputs strobe signals for the level
controller. (IC5)
Outputs data signal for the level con-
troller (IC5).
Outputs clock signal for the level con-
troller (IC5).
Outputs strobe signals for the PLL IC
(IC12).
Outputs data signal for the PLL IC
(IC12).
Outputs clock signal for the PLL IC
(IC12).
Input port for the PLL unlock signal.
High : During unlock
Outputs PLL accelerator control signal.
High : While scanning, etc.
Outputs the T8V regulator circuit (Q38,
D28) control signal.
Low : While transmitting
Outputs the R8V regulator circuit
(Q36, D27) control signal.
Low : While receiving
Outputs the power control circuit (Q12)
control signal.
High : During power ON
Outputs “Public-address” mute signal.
High : While PA and Ext. SP func-
tions are not used
Outputs the mute switch (Q7) control
signal (incl. beep).
High :
While squelched, etc.
Input port for an external LCD back-
light brightness control signal.
Low : LCD backlight is dimmed
Outputs DTMF audio signals.
Outputs high level control signal for the
pre-set time to the connected external
unit when matched 2- or 5-tone code is
received.
Outputs CPU clock shift signal.
Pin Port Description
number name Pin Port Description number name

5 - 1
SECTION 5 ADJUSTMENT PROCEDURES
5-1 PREPARATION
■REQUIRED TEST EQUIPMENT
EQUIPMENT
DC power supply
RF power meter
(terminated type)
Frequency counter
RF voltmeter
FM deviation meter
Audio generator
GRADE AND RANGE
Output Voltage : 13.2 V DC
Current capacity : 15 A or more
Measuring range : 1–50 W
Frequency range : 100–300 MHz
Impedance : 50 Ω
SWR : Less than 1.2 : 1
Frequency range : 0.1–600 MHz
Frequency accuracy: ±1 ppm or better
Sensitivity : 100 mV or better
Frequency range : 0.1–600 MHz
Measuring range : 0.01–10 V
Frequency range : DC–600 MHz
Measuring range : 0 to ±10 kHz
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
EQUIPMENT
Standard signal
generator (SSG)
Oscilloscope
DC voltmeter
Digital multimeter
AC millivoltmeter
External speaker
Attenuator
Terminator
GRADE AND RANGE
Frequency range : 0.1–600 MHz
Output level : 0.1 µV –32 mV
(–127 to –17 dBm)
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Input impedance : 50 kΩ/V DC or
better
Measuring range : 10 mV –10 V
Input impedance : 10 MΩ/V DC or
better
Input impedance : 4 Ω
Capacity : 5 W or more
Power attenuation : 40 dB or 50 dB
Capacity : 50 W or more
Impedance : 50 Ω
Capacity : 50 W or more
+
.
pin 6 (MIC)
pin 4 (PTT)
pin 7 (GND)
pin 5 (MICE)
to the antenna connector
to the microphone connector
STANDARD SIGNAL GENERATOR
100–300 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
FM DEVIATION
METER ATTENUATOR
40 dB or 50 dB POWER SUPPLY
13.2 V/15Aor more
CAUTION!
DO NOT transmit
while an SSG is
connected to the
antennaconnector.
■CONNECTION

P0
P0
5-2 INITIAL SET MODE
The following items can be adjusted via Initial Set Mode
without opening the transceiver’s case.
■ENTERING INITIAL SET MODE
1Turn the transceiver power OFF.
2While pushing and , turn power ON.
• Bank number appears regardless of the channel sepa-
ration type, ‘bank’ or ‘free’.
3Push to cycle through the initial set mode items.
NOTE: Initial Set Mode access can be inhibited through
PC programming. In such case, cannot be used
and only ‘DISPLAY’ setting is available. Ask your Dealer
or Icom Service Center for PC programming.
P1
P3
Backlight
—
Link
ON/OFF
DTCS bal-
ance
Low 1
—
Squelch
level
Beep tones
ON/OFF
Tone
deviation
Low 2
Contrast
Minimum
AF level
Beep level
Max. voice
deviation
High
Indicate the received signal level
regardless of to keys.
1
2
3
4
5
6
DISPLAY
AF/SQUELCH
BEEP TONES
DEVIATION
S-METER
TX POWER
5 - 2
P3
P2
P1
P3
P2
P3
P2
P1
P3
P2
P3
P1
P1
ITEM
Display backlight
Display contrast
Squelch level
Minimum AF level
Link/unlink beep tones
with the volume control
Beep ON/OFF
Maximum beep level
DTCS balance
CTCSS/DTCS
Tone deviation
Maximum voice deviation
S-meter level
Transmit low power (L1)
Transmit low power (L2)
Transmit high power (H)
MODE
No. NOTE
2 beeps: link 1 beep: unlink
2 beeps: ON 1 beep: OFF
Effective after exiting Initial Set Mode
Automatic transmission while pushing the key.
Automatic transmission while pushing the key.
Separate setting for CTCSS and DTCS
depending on the programmed tone system.
Automatic transmission while pushing the key.
Received signal level is shown in the display.
Automatic transmission while pushing the key.
Same as above.
Same as above.
METHOD
Push to select ‘bright’, ‘dark’ or ‘off’.
Rotate the volume control while pushing .
Rotate the volume control while pushing .
Rotate the volume control while pushing .
Push to select ‘link’ or ‘unlink’.
Push to turn beeps ON and OFF.
Rotate the volume control while pushing .
Rotate the volume control while pushing .
Rotate the volume control while pushing .
Rotate the volume control while pushing .
—
Rotate the volume control while pushing .
Rotate the volume control while pushing .
Rotate the volume control while pushing .
No. ITEM
P1
P2
P3
SELECTABLE CONDITIONS
■SELECTION METHOD
■SELECTABLE ITEMS
,,
,,,
,,,
,

5 - 3
5-3 PLL ADJUSTMENT
PLL LOCK
VOLTAGE
PLL
REFERENCE
FREQUENCY
1
2
3
4
1
• Operating frequency : 136.000 MHz
• Receiving
• Operating frequency : 174.000 MHz
• Receiving
• Operating frequency : 136.000 MHz
• Transmitting
• Operating frequency : 174.000 MHz
• Transmitting
• Operating frequency : 174.000 MHz
• Transmitting
MAIN
Rear
panel
Connect a digital multi-
meter or an oscillo-
scope to the check
point, “LV”.
Loosely couple a fre-
quency counter to the
antenna connector.
3.0 V
10.0–14.0 V
3.0 V
10.5–15.5 V
174.00000 MHz
MAIN
MAIN
L38
Verify
L43
Verify
R376
ADJUSTMENT ADJUSTMENT CONDITIONS UNIT LOCATION VALUE UNIT ADJUST
MEASUREMENT ADJUSTMENT
L.V.
PLL lock voltage
check point L38
Rx PLL lock voltage
adjustment
L43
Tx PLL lock voltage
adjustment
R376
Reference frequency
adjustment
• MAIN UNIT

P3
P2
Adjust in
sequence
L8, L11, L12, L13
on the MAIN unit
Rotate volume
control while
pushing
Verify
Rotate volume
control while
pushing
5 - 4
Receiver
sensitivity
adjustment
L8
L11
L12
L13
• MAIN UNIT
Maximum indi-
cation
At the point
where the noise
audio just disap-
pears.
Squelch opens
Desired level
1
1
2
1
• Operating frequency : 136.000 MHz
• Connect an SSG to the antenna con-
nector and set as:
Level : 5.6 µV* (–92 dBm)
Modulation : OFF
• Connect a 4 Ωload to the external
speaker jack.
• Enter Initial Set Mode No. 5.
Refer to page 5-2 for details.
• Receiving
• Make sure no signal is being applied
to the antenna connector.
• Enter Initial Set Mode No. 2.
Refer to page 5-2 for details.
• Operating frequency : 136.000 MHz
• Receiving
• Connect an SSG to the antenna con-
nector and set as:
Level : 0.25 µV* (–119 dBm)
Deviation : ±3.5 kHz
Modulation : 1 kHz
• Receiving
• Enter
Initial Set Mode No. 3.
Refer to page 5-2 for details.
• Operating frequency : Any
• Receiving
5-4 RECEIVER ADJUSTMENT
RECEIVER
SENSITIVITY
NOISE
SQUELCH
THRESHOLD
POINT
BEEP
LEVEL
Number digits in the LCD
Speaker output
Speaker output
ADJUSTMENT ADJUSTMENT CONDITIONS VALUE ADJUST
MEASUREMENT
METHOD
ADJUSTMENT
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.

P2
5 - 5
OUTPUT
POWER
FM
DEVIATION
DTCS WAVE
FORM AND
DEVIATION
CTCSS
TONE
DEVIATION
25 W
10 W
2.5 W
±4.1 kHz
±1.75–±2.2 kHz
Maximum wave
form
±0.7 kHz
±0.25–±0.5 kHz
±0.7 kHz
±0.25–±0.5 kHz
Connect an RF power meter to
the antenna connector.
Connect an FM deviation
meter to the antenna connec-
tor through an attenuator.
Connect an FM deviation
meter with an oscilloscope to
the antenna connector through
an attenuator.
Connect an FM deviation
meter to the antenna connec-
tor through an attenuator.
• Operating frequency : 146.000 MHz
• Enter Initial Set Mode No. 6.
Refer to page 5-2 for details.
• Operating frequency : 146.000 MHz
• Enter Initial Set Mode No. 4.
Refer to page 5-2 for details.
• Connect an audio generator to the
microphone connector and set as:
1 kHz/35 mV
• Set an FM deviation meter as:
HPF : OFF
LPF : 20 kHz
De-emphasis: OFF
Detector : (P–P)/2
• Wide/Narrow setting : Wide
• Wide/Narrow setting : Narrow
• Operating frequency : 146.000 MHz
• Enter
Initial Set Mode No. 4.
Refer to page 5-2 for details.
• No AF signals are applied to the micro-
phone connector.
• Set an FM deviation meter as:
HPF : OFF
LPF : 20 kHz
De-emphasis: OFF
Detector : (P–P)/2
• Wide/Narrow setting : Wide
• DTCS code : 007
• Wide/Narrow setting : Narrow
• Operating frequency : 146.000 MHz
• Enter Initial Set Mode No. 4.
Refer to page 5-2 for details.
• No AF signals are applied to the micro-
phone connector.
• Set an FM deviation meter as:
HPF : OFF
LPF : 20 kHz
De-emphasis: OFF
Detector : (P–P)/2
• Wide/Narrow setting : Wide
• CTCSS tone frequency: 67.0 Hz
• Wide/Narrow setting : Narrow
P2
P1
P2
P3
P1
P2
P3
Rotate volume
control while
pushing
Rotate volume
control while
pushing
Rotate volume
control while
pushing
Rotate volume
control while
pushing
Verify
Rotate volume
control while
pushing
Rotate volume
control while
pushing
Rotate volume
control while
pushing
Verify
Rotate volume
control while
pushing
Verify
Set to flat wave
form
5-5 TRANSMITTER ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITIONS VALUE ADJUST
MEASUREMENT
METHOD
ADJUSTMENT
1
1
2
1
2
3
4
1
2
NOTE: When the RF output power cannot be set with this proce-
dure, cloning may be necessary to cancel the output power
setting.

[FRONT UNIT][FRONT UNIT]
IC1 1130009120 S.IC SED1526F0A
IC2 1140007630 S.IC HD64F3644H
IC3 1110003500 S.IC S-80742SL-A6-T1
IC4 1130005720 S.IC TC7W04F (TE12L)
IC5 1110003390 S.IC AN8005M-(E1)
Q1 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q2 1590001330 S.TRANSISTOR DTA114EUA T106
Q3 1590000680 S.TRANSISTOR DTC114EUA T106
Q4 1590001330 S.TRANSISTOR DTA114EUA T106
Q5 1590000680 S.TRANSISTOR DTC114EUA T106
Q6 1590000440 S.TRANSISTOR DTA143ZUA T106
Q7 1590000440 S.TRANSISTOR DTA143ZUA T106
Q8 1590000440 S.TRANSISTOR DTA143ZUA T106
Q9 1590000440 S.TRANSISTOR DTA143ZUA T106
Q10 1590000680 S.TRANSISTOR DTC114EUA T106
Q11 1590000680 S.TRANSISTOR DTC114EUA T106
D1 1790001280 S.DIODE MA111 (TX)
D2 1790001280 S.DIODE MA111 (TX)
D3 1790001280 S.DIODE MA111 (TX)
D4 1790001280 S.DIODE MA111 (TX)
D5 1750000130 S.DIODE DA204U T107
D6 1750000130 S.DIODE DA204U T107
D7 1750000130 S.DIODE DA204U T107
D8 1750000130 S.DIODE DA204U T107
D9 1750000130 S.DIODE DA204U T107
X1 6050009870 S.XTAL CR-567 (9.8304 MHz)
L1 6200001720 S.COIL NL 322522T-1R0J
R1 7030003810 S.RESISTOR ERJ3GEYJ 125 V (1.2 MΩ)
R2 7310002820 S.TRIMMER RV-158 (RH03A3AS5) 474
R3 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R4 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R5 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R6 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)
R7 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R8 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R9 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R10 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R11 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 MΩ)
R12 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R13 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R15 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R16 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R17 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 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 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R24 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R25 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R26 7210002830 VARIABLE EVU-F2JFK4 B14
R27 7030003340 S.RESISTOR ERJ3GEYJ 151 V (150 Ω)
R28 7030003340 S.RESISTOR ERJ3GEYJ 151 V (150 Ω)
R29 7030003370 S.RESISTOR ERJ3GEYJ 271 V (270 Ω)
R30 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R31 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R32 7030003390 S.RESISTOR ERJ3GEYJ 391 V (390 Ω)
R34 7030003360 S.RESISTOR ERJ3GEYJ 221 V (220 Ω)
R35 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R36 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R37 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R38 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R39 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R40 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R41 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
S.=Surface mount
R42 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R43 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R44 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R45 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R46 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R47 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R48 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R49 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
C1 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C2 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C3 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C4 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C5 4030011600 S.CERAMIC C1608 JB 1C 104KT-N
C6 4030012600 S.CERAMIC C2012 JB 1A 105M-T-A
C7 4030012600 S.CERAMIC C2012 JB 1A 105M-T-A
C8 4030008630 S.CERAMIC C1608 JF 1C 104Z-T-A
C9 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C10 4030009000 S.CERAMIC C2012 JB 1C 224K-T-A
C11 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A
C13 4030007030 S.CERAMIC C1608 CH 1H 150J-T-A
C14 4030007030 S.CERAMIC C1608 CH 1H 150J-T-A
C15 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C16 4030006900 S.CERAMIC C1608 JB 1E 103K-T-A
C17 4030008630 S.CERAMIC C1608 JF 1C 104Z-T-A
C18 4030008630 S.CERAMIC C1608 JF 1C 104Z-T-A
C19 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A
C20 4550006250 S.TANTALUM TEMSVA 1A 106M-8L
C21 4550003220 S.TANTALUM TEMSVA 1E 105M-8L
C22 4030008630 S.CERAMIC C1608 JF 1C 104Z-T-A
C23 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A
C24 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A
C25 4030006850 S.CERAMIC C1608 JB 1H 471K-T-A
C26 4030008630 S.CERAMIC C1608 JF 1C 104Z-T-A
C27 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C28 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C29 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C30 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C31 4030006860 S.CERAMIC C1608 JB 1H 102K-T-A
C32 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C33 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C34 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C35 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C36 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C37 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C38 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C39 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C40 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C41 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C42 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C43 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C44 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C45 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C46 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C47 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C48 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C49 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C50 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C51 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
C52 4030007090 S.CERAMIC C1608 CH 1H 470J-T-A
J1 6450001470 CONNECTOR 95003-2881
J2 6510018030 S.CONNECTOR 53248-1217
DS1 5030001650 LCD LD-NU10377E
DS2 5040002470 S.LED FY1112H
DS3 5040002470 S.LED FY1112H
DS4 5040002470 S.LED FY1112H
DS5 5040002470 S.LED FY1112H
DS6 5040002470 S.LED FY1112H
DS7 5040002030 S.LED CL-170Y-CD-T
DS8 5040002030 S.LED CL-170Y-CD-T
DS10 5040002030 S.LED CL-170Y-CD-T
6 - 1
SECTION 6 PARTS LIST
REF ORDER DESCRIPTION
NO. NO. REF ORDER DESCRIPTION NO. NO.

Q30 1590002290 S.TRANSISTOR FMS2A T148
Q31 1590002300 S.TRANSISTOR FMW2 T148
Q32 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q33 1510000510 S.TRANSISTOR 2SA1576A T106R
Q35 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q36 1540000550 S.TRANSISTOR 2SD1664 T100Q
Q37 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q38 1540000550 S.TRANSISTOR 2SD1664 T100Q
Q39 1590000850 S.TRANSISTOR DTC114YUA T106
Q40 1540000550 S.TRANSISTOR 2SD1664 T100Q
Q41 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q42 1520000560 S.TRANSISTOR 2SB1123T-TD
Q43 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q44 1560000810 S.FET 2SK1069-4-TL
Q45 1590000430 S.TRANSISTOR DTC144EUA T106
Q47 1590000430 S.TRANSISTOR DTC144EUA T106
Q48 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q50 1590001330 S.TRANSISTOR DTA114EUA T106
Q51 1590000680 S.TRANSISTOR DTC114EUA T106
Q52 1560000810 S.FET 2SK1069-4-TL
Q55 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q56 1590000720 S.TRANSISTOR DTA144EUA T106
Q61 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q62 1590000430 S.TRANSISTOR DTC144EUA T106
Q64 1590000430 S.TRANSISTOR DTC144EUA T106
Q65 1560000840 S.FET 2SK1829 (TE85R)
Q501 1590000430 S.TRANSISTOR DTC144EUA T106
Q502 1590000720 S.TRANSISTOR DTA144EUA T106
Q503 1590001650 S.TRANSISTOR XP4601 (TX)
Q504 1560000810 S.FET 2SK1069-4-TL
Q505 1590000430 S.TRANSISTOR DTC144EUA T106
Q506 1560000810 S.FET 2SK1069-4-TL
Q507 1590000430 S.TRANSISTOR DTC144EUA T106
Q508 1560000840 S.FET 2SK1829 (TE85R)
Q509 1590000430 S.TRANSISTOR DTC144EUA T106
Q510 1590000430 S.TRANSISTOR DTC144EUA T106
Q511 1590000720 S.TRANSISTOR DTA144EUA T106
Q512 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q513 1590000720 S.TRANSISTOR DTA144EUA T106
Q514 1590000720 S.TRANSISTOR DTA144EUA T106
Q515 1590000720 S.TRANSISTOR DTA144EUA T106
Q516 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q517 1590000430 S.TRANSISTOR DTC144EUA T106
D1 1790001210 S.DIODE 1SS375-TL
D3 1790001210 S.DIODE 1SS375-TL
D4 1750000510 S.DIODE UM9401F
D5 1710000730 S.DIODE MI809-T11
D6 1710000730 S.DIODE MI809-T11
D7 1720000270 S.VARICAP 1SV217 (TPH2)
D9 1720000270 S.VARICAP 1SV217 (TPH2)
D10 1720000270 S.VARICAP 1SV217 (TPH2)
D11 1720000270 S.VARICAP 1SV217 (TPH2)
D15 1790000700 DIODE DSA3A1
D16 1750000370 S.DIODE DA221 TL
D17 1790000620 S.DIODE MA77 (TX)
D18 1790000620 S.DIODE MA77 (TX)
D19 1720000270 S.VARICAP 1SV217 (TPH2)
D20 1720000270 S.VARICAP 1SV217 (TPH2)
D21 1720000270 S.VARICAP 1SV217 (TPH2)
D22 1720000270 S.VARICAP 1SV217 (TPH2)
D23 1720000260 S.VARICAP 1SV214 (TPH2)
D27 1750000130 S.DIODE DA204U T107
D28 1750000220 S.DIODE DA113W T107
D29 1750000130 S.DIODE DA204U T107
D30 1750000550 S.DIODE 1SS355 TE-17
D31 1750000550 S.DIODE 1SS355 TE-17
D32 1750000130 S.DIODE DA204U T107
D33 1730002420 S.ZENER MA8160 (TX)
D36 1750000550 S.DIODE 1SS355 TE-17
D37 1750000550 S.DIODE 1SS355 TE-17
D38 1750000550 S.DIODE 1SS355 TE-17
D40 1720000270 S.VARICAP 1SV217 (TPH2)
D41 1720000270 S.VARICAP 1SV217 (TPH2)
D42 1720000270 S.VARICAP 1SV217 (TPH2)
D43 1720000270 S.VARICAP 1SV217 (TPH2)
D44 1720000360 S.DIODE HSU88TRF
D45 1750000550 S.DIODE 1SS355 TE-17
D46 1720000260 S.VARICAP 1SV214 (TPH2)
D50 1750000550 S.DIODE 1SS355 TE-17
D51 1750000550 S.DIODE 1SS355 TE-17
[MAIN UNIT][FRONT UNIT]
S.=Surface mount
DS11 5040002030 S.LED CL-170Y-CD-T
DS13 5040002030 S.LED CL-170Y-CD-T
DS14 5040002030 S.LED CL-170Y-CD-T
DS15 5040002030 S.LED CL-170Y-CD-T
DS16 5040002030 S.LED CL-170Y-CD-T
W1 7030003860 S.JUMPER ERJ3GE JPW V
W2 7030003860 S.JUMPER ERJ3GE JPW V
W3 7030000010 S.JUMPER MCR10EZHJ JPW (000)
W4 7030000010 S.JUMPER MCR10EZHJ JPW (000)
EP1 0910050602 PCB B 5205B
EP2 8930048320 LCD CONTACT SRCN-2140-SP-N-W
IC1 1110003571 S.IC MC3372SVMEL
IC2 1130007370 S.IC TA75S558F (TE85L)
IC3 1130007090 S.IC TA75W558FU (TE12L)
IC5 1190000350 S.IC M62363FP-650C
IC7 1110003300 S.IC M5282FP 70CD
IC8 1110003090 IC LA4425A
IC9 1130007090 S.IC TA75W558FU (TE12L)
IC10 1110003800 S.IC NJM2904V-TE1
IC11 1150001040 IC SC-1188
IC12 1130007970 S.IC MC145190FR2
IC13 1130007300 S.IC TC4W66FU (TE12L)
IC16 1180001250 S.IC TA7808F (TE16L)
IC17 1180000970 S.IC AN78L05M-(E1)
IC18 1130007110 S.IC TC7W04FU (TE12L)
IC19 1110003500 S.IC S-80742SL-A6-T1
IC20 1140007640 S.IC HD64F3437F16
IC21 1130006920 S.IC TA75W01FU (TE12L)
IC22 1110003410 S.IC µPC5023GR-043-GJG-T2
IC25 1130007300 S.IC TC4W66FU (TE12L)
IC26 1130007110 S.IC TC7W04FU (TE12L)
IC27 1130009020 S.IC X25650S8I-2.5T6
IC29 1110002750 S.IC TA75S01F (TE85R)
IC501 1130004230 S.IC LC7366NM
IC502 1130007020 S.IC TC7S66FU (TE85R)
IC503 1110002750 S.IC TA75S01F (TE85R)
IC504 1130006220 S.IC TC4W53FU (TE12L)
IC505 1130008090 S.IC BU4066BCFV-E1
IC506 1180001080 S.IC S-81250PG-PD-T1
Q1 1580000590 S.FET 3SK166A-0-T7
Q2 1580000590 S.FET 3SK166A-0-T7
Q3 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q4 1530002600 S.TRANSISTOR 2SC4215-O (TE85R)
Q5 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R)
Q6 1590000680 S.TRANSISTOR DTC114EUA T106
Q7 1590000990 S.TRANSISTOR DTC363EK T147
Q8 1590000680 S.TRANSISTOR DTC114EUA T106
Q9 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q10 1530002060 S.TRANSISTOR 2SC4081 T107 R
Q11 1550000020 S.FET 2SJ377 (TE16R)
Q12 1550000020 S.FET 2SJ377 (TE16R)
Q14 1590000430 S.TRANSISTOR DTC144EUA T106
Q15 1530003291 S.TRANSISTOR 2SC4703-T1 SE
Q16 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q17 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q18 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q19 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q20 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q21 1530002920 S.TRANSISTOR 2SC4226-T2 R25
Q22 1590000850 S.TRANSISTOR DTC114YUA T106
Q23 1530003420 S.TRANSISTOR 2SC5110-O (TE85R)
Q24 1590000850 S.TRANSISTOR DTC114YUA T106
Q25 1590000430 S.TRANSISTOR DTC144EUA T106
Q26 1590001330 S.TRANSISTOR DTA114EUA T106
Q27 1590000720 S.TRANSISTOR DTA144EUA T106
Q28 1590000720 S.TRANSISTOR DTA144EUA T106
Q29 1560000810 S.FET 2SK1069-4-TL
6 - 2
REF ORDER DESCRIPTION
NO. NO. REF ORDER DESCRIPTION NO. NO.
[MAIN UNIT]
REF ORDER DESCRIPTION
NO. NO.

[MAIN UNIT][MAIN UNIT]
S.=Surface mount
D52 1750000260 S.DIODE 1SS352 (TPH3)
D501 1160000060 S.DIODE DAN202U T107
D502 1160000060 S.DIODE DAN202U T107
D503 1790000620 S.DIODE MA77 (TX)
D505 1750000130 S.DIODE DA204U T107
D506 1160000060 S.DIODE DAN202U T107
D507 1720000360 S.DIODE HSU88TRF
D508 1750000130 S.DIODE DA204U T107
D509 1160000060 S.DIODE DAN202U T107
D510 1750000130 S.DIODE DA204U T107
D511 1790001210 S.DIODE 1SS375-TL
FI1 2010002050 XTAL FL-264 (21.750 MHz)
FI3 2020001180 S.CERAMIC SFPC455H-TC01
FI4 2020001050 S.CERAMIC SFPC455E-TC01
X1 6050009970 XTAL CR-574 (21.295 MHz)
X2 6070000170 S.DISCRIMINATOR CDBC455CX16-TC
X4 6050009870 S.XTAL CR-567 (9.8304 MHz)
X501 6050009960 S.XTAL CR-573 (12.6 MHz)
X502 6060000550 S.CERAMIC PBRC 3.58AR
L1 6110003130 COIL LA-504
L2 6110003130 COIL LA-504
L3 6110003120 COIL LA-503
L4 6200003850 S.COIL 36CS-656LZ-09K=P3
L5 6200003850 S.COIL 36CS-656LZ-09K=P3
L6 6170000230 COIL LW-25
L7 6110003130 COIL LA-504
L8 6200006200 S.COIL MC152-E558CNA-100047=P3
L10 6200004230 S.COIL ELJNC R56K-F
L11 6200006200 S.COIL MC152-E558CNA-100047=P3
L12 6200006200 S.COIL MC152-E558CNA-100047=P3
L13 6200006200 S.COIL MC152-E558CNA-100047=P3
L15 6200004440 S.COIL ELJFC 4R7M-F
L16 6200001920 S.COIL ELJNC R15K-F
L17 6200003670 S.COIL ELJNC 68NK-F
L18 6200004880 S.COIL ELJFC 3R3K-F
L19 6200002940 S.COIL ELJFC 1R2K-F
L23 6200001770 S.COIL ELJNC 47NK-F
L24 6200001770 S.COIL ELJNC 47NK-F
L25 6200003670 S.COIL ELJNC 68NK-F
L26 6200004230 S.COIL ELJNC R56K-F
L27 6200002160 S.COIL ELJNC 82NK-F
L29 6200004880 S.COIL ELJFC 3R3K-F
L30 6200004230 S.COIL ELJNC R56K-F
L31 6200001770 S.COIL ELJNC 47NK-F
L32 6200002160 S.COIL ELJNC 82NK-F
L33 6200002160 S.COIL ELJNC 82NK-F
L35 6200004880 S.COIL ELJFC 3R3K-F
L37 6200004880 S.COIL ELJFC 3R3K-F
L38 6200004850 S.COIL MC152-E558CN-100024
L39 6200004880 S.COIL ELJFC 3R3K-F
L40 6200004990 S.COIL LQH 1N R68M
L41 6200002940 S.COIL ELJFC 1R2K-F
L42 6200004880 S.COIL ELJFC 3R3K-F
L43 6200004980 S.COIL MC152-E558CN-100023
L44 6200004230 S.COIL ELJNC R56K-F
L45 6200004440 S.COIL ELJFC 4R7M-F
L46 6200004230 S.COIL ELJNC R56K-F
L47 6200004230 S.COIL ELJNC R56K-F
L48 6200004230 S.COIL ELJNC R56K-F
L50 6200004230 S.COIL ELJNC R56K-F
L51 6200001770 S.COIL ELJNC 47NK-F
L52 6200004230 S.COIL ELJNC R56K-F
L53 6200007030 S.COIL SLF7032T-101MR45-2
L54 6200004230 S.COIL ELJNC R56K-F
L55 6200003960 S.COIL MLF1608A 1R0K-T
L56 6200003960 S.COIL MLF1608A 1R0K-T
L57 6200003960 S.COIL MLF1608A 1R0K-T
L58 6200003960 S.COIL MLF1608A 1R0K-T
L59 6200003960 S.COIL MLF1608A 1R0K-T
L60 6200003960 S.COIL MLF1608A 1R0K-T
L62 6200004720 S.COIL MLF1608D R10K-T
L63 6200003960 S.COIL MLF1608A 1R0K-T
L502 6200004720 S.COIL MLF1608D R10K-T
L504 6200004880 S.COIL ELJFC 3R3K-F
L508 6200002150 S.COIL ELJNC 56NK-F
R1 7030003280 S.RESISTOR ERJ3GEYJ 470 V (47 Ω)
R2 7030004050 S.RESISTOR ERJ3GEYJ 1R0 V (1 Ω)
R4 7030003280 S.RESISTOR ERJ3GEYJ 470 V (47 Ω)
R5 7030004050 S.RESISTOR ERJ3GEYJ 1R0 V (1 Ω)
R7 7030001170 S.RESISTOR MCR50JZHJ 220 Ω(221)
R8 7030001170 S.RESISTOR MCR50JZHJ 220 Ω(221)
R10 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R12 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R13 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R14 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R15 7030003340 S.RESISTOR ERJ3GEYJ 151 V (150 Ω)
R16 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R17 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R18 7030003720 S.RESISTOR ERJ3GEYJ 224 V (220 kΩ)
R19 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R20 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R21 7030003290 S.RESISTOR ERJ3GEYJ 560 V (56 Ω)
R25 7030003370 S.RESISTOR ERJ3GEYJ 271 V (270 Ω)
R26 7030003200 S.RESISTOR ERJ3GEYJ 100 V (10 Ω)
R27 7030003500 S.RESISTOR ERJ3GEYJ 332 V (3.3 kΩ)
R28 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R29 7030003410 S.RESISTOR ERJ3GEYJ 561 V (560 Ω)
R30 7030003350 S.RESISTOR ERJ3GEYJ 181 V (180 Ω)
R31 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R32 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 kΩ)
R33 7030003460 S.RESISTOR ERJ3GEYJ 152 V (1.5 kΩ)
R34 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R35 7030003670 S.RESISTOR ERJ3GEYJ 823 V (82 kΩ)
R36 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R37 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)
R38 7030003470 S.RESISTOR ERJ3GEYJ 182 V (1.8 kΩ)
R39 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R40 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 kΩ)
R41 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R42 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R44 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R45 7030003650 S.RESISTOR ERJ3GEYJ 563 V (56 kΩ)
R46 7510000430 S.THERMISTOR TN20-3K202LT
R47 7030003490 S.RESISTOR ERJ3GEYJ 272 V (2.7 kΩ)
R48 7030003430 S.RESISTOR ERJ3GEYJ 821 V (820 Ω)
R49 7030004050 S.RESISTOR ERJ3GEYJ 1R0 V (1 Ω)
R51 7030004270 S.RESISTOR ERJ3EKF 4121 V (4.12 kΩ)
R52 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R53 7030005490 S.RESISTOR RR0816R-363-D (36 kΩ)
R61 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R62 7030003460 S.RESISTOR ERJ3GEYJ 152 V (1.5 kΩ)
R63 7030004850 S.RESISTOR ERJ3GEYF 913 V (91 kΩ)
R65 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R67 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R68 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R69 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 kΩ)
R70 7030003760 S.RESISTOR ERJ3GEYJ 474 V (470 kΩ)
R71 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R77 7030003620 S.RESISTOR ERJ3GEYJ 333 V (33 kΩ)
R80 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R81 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R85 7030003280 S.RESISTOR ERJ3GEYJ 470 V (47 Ω)
R86 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R87 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R88 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R89 7030003600 S.RESISTOR ERJ3GEYJ 223 V (22 kΩ)
R90 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R92 7030003670 S.RESISTOR ERJ3GEYJ 823 V (82 kΩ)
R93 7030003490 S.RESISTOR ERJ3GEYJ 272 V (2.7 kΩ)
R94 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R95 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 kΩ)
R96 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R97 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R98 7030003320 S.RESISTOR ERJ3GEYJ 101 V (100 Ω)
R99 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R100 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 kΩ)
R101 7030003810 S.RESISTOR ERJ3GEYJ 125 V (1.2 MΩ)
R102 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R103 7030003520 S.RESISTOR ERJ3GEYJ 472 V (4.7 kΩ)
R107 7030003400 S.RESISTOR ERJ3GEYJ 471 V (470 Ω)
R108 7030000100 S.RESISTOR MCR10EZHJ 4.7 Ω(4R7)
R109 7030003480 S.RESISTOR ERJ3GEYJ 222 V (2.2 kΩ)
R110 7030003410 S.RESISTOR ERJ3GEYJ 561 V (560 Ω)
R111 7030000180 S.RESISTOR MCR10EZHJ 22 Ω(220)
R113 7030003240 S.RESISTOR ERJ3GEYJ 220 V (22 Ω)
R114 7030003240 S.RESISTOR ERJ3GEYJ 220 V (22 Ω)
R115 7030003510 S.RESISTOR ERJ3GEYJ 392 V (3.9 kΩ)
6 - 3
REF ORDER DESCRIPTION
NO. NO. REF ORDER DESCRIPTION NO. NO.