Yaesu FT-897 Service Manual
HF/VHF/UHF
ALL MODE Transceiver
FT-897
Technical Supplement
©2002 VERTEX STANDARD CO., LTD. Printed in Japan.
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
International Division
8350 N.W. 52nd Terrace, Suite 201, Miami, FL 33166, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
Introduction
This manual provides technical information necessary for servicing the FT-897 HF/VHF/UHF ALL MODE Trans-
ceiver.
Servicing this equipment requires expertise in handling surface-mount chip components. Attempts by non-qualified
persons to service this equipment may result in permanent damage not covered by the warranty, and may be illegal in
some countries.
Two PCB layout diagrams are provided for each double-sided circuit board in the Transceiver. Each side of is referred
to by the type of the majority of components installed on that side (“leaded” or “chip-only”). In most cases one side has
only chip components, and the other has either a mixture of both chip and leaded components (trimmers, coils, electrolytic capacitors, ICs, etc.), or leaded components only.
While we believe the technical information in this manual to be correct, VERTEX STANDARD assumes no liability
for damage that may occur as a result of typographical or other errors that may be present. Your cooperation in pointing
out any inconsistencies in the technical information would be appreciated.
Contents
Specifications................................................... 2
Exploded View & Miscellaneous Parts.......4
Block Diagram.................................................5
Circuit Description ........................................ 7
Alignment....................................................... 10
Board Unit (
MAIN Unit............................................................... 21
PLL Unit ................................................................... 53
PA Unit..................................................................... 59
PANEL Unit............................................................. 73
MIC Unit .................................................................. 81
VR Unit..................................................................... 82
BATT-CONN Unit .................................................. 83
REF Unit ................................................................... 84
Schematics, Layouts & Parts
)
Specifications
General
Frequency Range:
Emission Modes:
Synthesizer Steps (Min.):
Antenna Impedance:
Operating Temp. Range:
Frequency Stability:
Supply Voltage:
Current Consumption:
Case Size (W x H x D):
Weight (Approx.):
Transmitter
RF Power Output (@13.8 V DC):
Modulation Types:
FM Maximum Deviation:
Spurious Radiation:
Carrier Suppression:
Opp. Sideband Suppression:
SSB Frequency Response:
Microphone Impedance:
Receive: 0.1-56 MHz, 76-108 MHz, 118-164 MHz, 420-470 MHz
Transmit: 160 - 6 Meters, 2 Meters, 70 Centimeters (Amateur bands only)
5.1675 MHz (Alaska Emergency Frequency: USA only)
A1 (CW), A3 (AM), A3J (LSB/USB), F3 (FM), F1 (9600 bps packet), F2 (1200 bps packet)
10 Hz (CW/SSB), 100 Hz (AM/FM/WFM)
50 Ohms, Unbalanced (M)
+14 °F to +140 °F (–10 °C to +60 °C)
±4 ppm from 1 min. to 60 min after power on. @25 °C: 1 ppm/hour
±0.5 ppm/1 hour @25 °C, after warmup (with optional TCXO-9)
Normal: 13.8 VDC ±15 %, Negative Ground
FNB-78 (Ni-MH Battery Pack): 13.2 V (Option)
Squelched: 600 mA (Approx.)
Receive: 1 A
Transmit: 22 A
7.87” x 3.15” x 10.3” (200 x 80 x 262 mm)
8.6 lb (3.9 kg) (w/o Ni-MH battery, antenna, Microphone)
SSB/CW/FM AM Carrier
160- 6 Meter: 100 W 25 W
2 Meter: 50 W 12.5 W
70 Centimeter: 20 W 5 W
SSB: Balanced Modulator, AM: Early Stage (Low Level), FM: Variable Reactance
±5 kHz (FM-N: ±2.5 kHz)
–50 dB (1.8-29.7 MHz)
–60 dB (50/144/430 MHz)
>40 dB
>50 dB
400 Hz-2600 Hz (–6 dB)
200-10k Ohms (Nominal: 600 Ohms)
2
Receiver
Circuit Type:
Intermediate Frequencies:
Sensitivity:
Squelch Sensitivity:
Image Rejection:
IF Rejection:
Selectivity (–6/–60 dB):
AF Output:
AF Output Impedance:
Specifications
Double-Conversion Superheterodyne (SSB/CW/AM/FM)
Superheterodyne (WFM)
1st: 68.33 MHz (SSB/CW/AM/FM); 10.7 MHz (WFM)
2nd: 455 kHz
SSB/CW AM FM
100 kHz-1.8 MHz – 32 µV –
1.8 MHz-28 MHz 0.2 µV 2 µV –
28 MHz-30 MHz 0.2 µV 2 µV 0.5 µV
50 MHz-54 MHz 0.125 µV 1 µV 0.2 µV
144/430 MHz 0.125 µV – 0.2 µV
(SSB/CW/AM = 10 dB S/N, FM = 12 dB SINAD)
SSB/CW/AM FM
100 kHz-1.8 MHz – –
1.8 MHz-28 MHz 2.5 µV –
28 MHz-30 MHz 2.5 µV 0.32 µV
50 MHz-54 MHz 1 µV 0.16 µV
144/430 MHz 0.5 µV 0.16 µV
HF/50 MHz: 70 dB, 144/430 MHz: 60 dB
60 dB
SSB/CW: 2.2 kHz/4.5 kHz
AM: 6 kHz/20 kHz
FM: 15 kHz/30 kHz
FM-N: 9 kHz/25 kHz
SSB (optional YF-122S installed): 2.3 kHz/4.7 kHz (–66 dB)
CW (option YF-122C installed): 500 Hz/2.0 kHz
2.5 W (@4 Ohms, 10% THD or less)
4-16 Ohms
Specifications are subject to change without notice, and are guaranteed within the amateur bands
3
Exploded View & Miscellaneous Parts
RA0398000
SP NET (VND-100)
RA0398100
SPONGE RUBBER (SP)
M4090150
SPEAKER
RA0283900
SPONG RUBBER (SP-B)
RA0413400
SP HOLDER
RA0420000
SPONGE RUBBER
S4000047
RA0411700
HOLDER PLATE (MIC)
CASE LEG FF-003
(w/o RIVET) x 4 pcs
S3000022
WIRE BIND PLT-1M BK-1
RA0411200
MIC Unit
17
17
RA0411400
LIGHT GUIDE (LCD)
RA0423700
DIFFUSER SHEET
RA0412200
SUPONGE RUBBER (MIC)
DOUBLE FACE (LCD)
RA0423800
REFLECTOR SHEET
1
16
17
18
RA0412300
PANEL ASSY
R3135000A
WASHER
R0136380
COIL SPRING
RA0415100
LCD
1
PANEL Unit
MAIN KNOB ASSY
1
R6144801
NUT
1
RA0411600
RUBBER RING
RA0412100
ROTARY KNOB (AF)
RA0412000
ROTARY KNOB (SQL)
RA0411900
ROTARY KNOB (CLAR)
R6054387B
SPECIAL NUT
No. VXSTD P/N DISCRIPTION QTY.
1 U24306001 TAPTITE SCREW M3X6 4
2 U9900144 BINDING HEAD SCREW M3X7B 4
3 U24308002 TAPTITE SCREW M3X8NI 4
4 U31306007 OVAL HEAD SCREW M3X6B 8
5 U31205007 OVAL HEAD SCREW M2.6X5B 2
6 U20408007 BINDING HEAD SCREW M4X8B 2
7 U24206001 TAPTITE SCREW M2.6X6 10
8 U02208002 PAN HEAD SCREW SM2.6X8NI 2
9 U24208001 TAPTITE SCREW M2.6X8 2
10 U02308002 SEMS SCREW SM3X8NI 6
11 U20306002 BINDING HEAD SCREW M3X6NI 2
12 U00330007 PAN HEAD SCREW M3X30B 8
13 U9900076 HEX HEAD BOLT HSM4X16NI 1
14 U72004002 TOOTHED LOCK WASHER OW4NI 1
15 U20420007 BINDING HEAD SCREW M4X20B 2
16 U23206001 TAPTITE SCREW M2.6X6 5
17 U23105001 TAPTITE SCREW M2X5 2
18 U9900063 TAPTITE SCREW 2X3.3NI 1
4
RA0460300
SHIELD SHEET (DSP)
2
2
RA0411300
LCD HOLDER
12
12
16
12
16
12
16
M2090029
FAN (x 2 pcs)
16
RA0423600
SPONGE RUBBER (LED)
VR Unit
RA0411800
ROTARY KNOB (VFO)
4
S5000057
LEAD CLAMPER (x 2 pcs)
2
RA0416500
HEATSINK PLATE
1
1
4
6
4
5
4
5
4
4
4
9
7
7
7
9
7
8
7
7
RA0397700
TOP CASE
4
7
4
7
RA041290A
HOLDER (BATT SW)
MAIN Unit
3
13
BATT-CONN Unit
3
3
7
3
7
RA039760A
CHASSIS (MAIN)
15
8
7
2
14
RA0412500
HANDLE
15
RA0412600
HOLDER HANDLE (x 2 pcs)
7
10
7
1
1
1
1
7
9
7
7
9
RA0413100
SUPPORT (x 2 pcs)
1
11
7
RA0452600
PACKING PAD (SHIELD)
RA0397900
SHIELD (CENTER)
1
S4000043
4
CASE LEG FF-003
4
RA0397800
BOTTOM CASE (A)
4
S4000043
4
4
6
CASE LEG FF-003 (x 2 pcs)
RA3100700A
FOOT (x 2 pcs)
RA0398200
STAND
Block Diagram
5
Block Diagram
Note:
6
Circuit Description
The FT-897 internal assembly consists of the MAIN
Unit, PLL Unit, PA Unit, Panel Unit, BATT-CONN Unit,
REF Unit, MIC Unit, and the VR Unit.
Receive Signal Circuitry
RF Stages
Signals between 0.1 and 56 MHz received at the antenna terminal pass through a low-pass filter, selected
according to the receiving frequency, then pass to another
low-pass filter, to remove unwanted out-of-band signals.
The filtered receiving signal passes, through one of the
following circuits, to the 1st Mixer Q1128 (SPM5001):
(1) an attenuator network (-10dB) which consists of resistors R1101, R1108, R1109; (2) a “through” circuit enabled via diodes D1011 and D1012 (both DAP236U); or
(3) RF amplifier Q1025 (2SC5374).
Received 430 MHz signals, after passing through a
high-pass filter composed of L3052, L3059, C3209,
C3210, C3219, C3223, and C3319, are passed through
low-pass filter composed of L3042, L3045, C3165, C3168,
C3177, C3180, C3192, and C3196, and through a directional coupler, to the UHF T/R switch circuit composed
of diode switch D3015/D3021 (both UM9957F), D3022,
and D3066 (both HSU277). Then the signals are fed to
the 1st Mixer Q1128 via the RF-AMP, Q1026 (2SK2685.)
Received 145 MHz signals, after passing through a
high-pass filter composed of L3060, L3050, L3047,
C3200, C3203, C3220, and C3221, are passed through a
low-pass filter composed of L3043, L3044, C3167, C3169,
C3176, C3179, and C3191, and a directional coupler, to
the VHF T/R switch circuit, composed of diode switch
D3018/D3020 (both UM9957F). Then the signals are fed
to 1st Mixer Q1128 via the RF-AMP, Q1024
(BB304CDW).
Received 76-108 MHz signals, after passing through a
high-pass filter composed of L3060, L3050, L3047,
C3200, C3203, C3220, and C3221, are passed through
low-pass filter composed of L3043, L3044, C3167, C3169,
C3176, C3179, and C3191, and a directional coupler, to
the T/R switch circuit, composed of diode switch D3018/
D3020 (both UM9957F). Then it is fed to the Wide-FM
IF IC Q1058 (CXA1611N) on the MAIN Unit.
1st Mixer Circuit/1st IF Circuit
The 1st mixer on the MAIN Unit consists of quad MOS
FET Q1128 (SPN5001), where the receiving signal is
mixed with the 1st local signal (68.430-538.330 MHz)
from the PLL Unit. The resulting output signal (68.33
MHz) passes through monolithic crystal filter (MCF)
XF1001 (MF68Q, BW: ±6.0 kHz) to obtain the 1st IF
signalwith a center frequency of 68.33 MHz. The IF signal passes through the 1st IF amplifier Q1073
(BB305CEW) to the 2nd Mixer, Q1083 and Q1084 (both
2SK302Y).
2nd Mixer Circuit/2nd IF Circuit
The 2nd Mixer consists of FETs Q1083 and Q1084
(both 2SK302Y) on the MAIN Unit, where the 1st IF
signal is mixed with the 2nd local signal (67.875 MHz).
The resulting output signal (455 kHz) is applied to the
2nd IF filter which is matched to the receiving mode: either CF1004, CF1005 or an optional mechanical filter.
Noise Blanker Circuit
A portion of the 2nd IF signal is amplified by Noise
Blanker Amplifiers Q1075 and Q1079 (both
BB305CEW) on the MAIN Unit, and then rectified by
D1064 (1SS372). This output is applied to the Noise
Blanker Controllers, Q1093 (2SC4154E) and Q1099
(2SA1602A), which a yield Blanking signal according
to the timing of the incoming noise pulses. Then Blanking signal controls the Noise Blanker Gate D1066
(BAS316), to slice out the impulse noise from the signal.
AGC Circuit
The AGC circuit consists of D1061 (1SS372), tran-
sistor Q1090 (2SC4154E), and associated parts on the
MAIN Unit. Output from the AGC circuit is fed back to
the IF AGC circuit that controls the gain of the IF amplifier FETs.
FM IF Circuit/FM Demodulator Circuit
On FM, the 2nd IF signal passes through the buffer
amplifier Q1094 (2SC4154E) and 2nd IF filters (CF1002
and CF1003) to the FM IF IC Q1080 (TA31135FN)
which contains a mixer, limiter amplifier, filter amplifier,
squelch trigger, and demodulator. The demodulated audio signal at Q1080 passes through a low-pass filter
(R1339 and C1282) and a de-emphasis circuit (R1303 and
C1345), then proceeds to the Audio Amplifier Circuit.
The squelch circuit selectively amplifies the noise component of the demodulator output using the filter amplifier inside the FM IF IC and an active band-pass filter consisting of an externally attached resistor and capacitor.
Signal detection is performed by D1057 (DA221).
7
Circuit Description
SSB/CW Demodulator Circuit
The 2nd IF SSB/CW signal passes through buffer am-
plifiers Q1088 and Q1081 (both BB305CEW) to the SSB
balanced demodulator Q1071 (SA602AD) which produces audio by applying the carrier signal from the CARDDS IC Q1062 (AD9835BRU). The demodulated audio
signal is stripped of high-frequency components by an
active low-pass filter, op-amp IC Q1120 (NJM2902V),
then is applied to the Audio Amplifier Circuit.
AM Demodulator Circuit
The 2nd IF AM signal passes through buffer amplifi-
ers Q1088 and Q1081 (both BB305CEW) to the AM demodulator D1055 (BAS316), yielding demodulated audio signal which is applied to the Audio Amplifier Circuit.
Audio Amplifier Circuit
The demodulated audio signal is passed through AF
pre-amplifier Q1119 (NJM2902V) and electronic volume
control IC Q1087 (M62364EP) to the AF Amplifier IC
Q1105 (TDA2003H) which drives the internal or external speaker to a maximum output of approximately 2.5
Watts.
Transmit Signal Circuitry
Microphone Amplifier Circuit
The audio signal from microphone jack on the MIC
Unit is amplified by audio amplifier Q1109 (2SC4154E)
on the MAIN Unit, and then is applied to electronic volume control IC Q1087 (M62364EP), the level of which
is set via the User Menu.
SSB Modulator Circuit
The output (audio signal) from the electronic volume
control IC is passed through audio amplifier Q1118
(NJM2902V) to the balanced modulator IC Q1071
(SA602AD) which produces a Double Sideband (DSB)
signal by applying the carrier signal from the CAR-DDS
IC Q1062 (AD9835BRU). The DSB modulated signal
(455 kHz) is fed to ceramic filter CF1004 (or the optional
mechanical filter) which strips residual carrier and the
undesired sideband, resulting in a Single Sideband (SSB)
signal.
AM Modulator Circuit
As in the SSB modulator circuit, a carrier signal appropriate to the transmitting mode (AM) from the CARDDS Unit and an audio signal from the microphone are
applied to balanced modulator IC Q1071 (SA602AD).
The control signal from Mode Switch IC Q1003
(BU4094BCFV) causes a voltage (“AM 5V”) to be sent
from transistor Q1058 (2SC4154E). This voltage is applied to IC Q1071 via D1059 (BAS316), causing the balanced modulator to lose balance. The restored carrier signal and modulated signal are then fed to the TX mixer via
ceramic filter CF1004.
FM Modulator Circuit
The output (audio signal) from the electronic volume
control IC is passed through the pre-emphasis circuit which
consists capacitor C1492 and resistors R1493 and R1477,
and Instantaneous Deviation Control Q1119
(NJM2902V), to the splatter filter which consists Q1119,
capacitor C1430, and resistors R1358 and R1384. The filtered audio signal is applied to the FM modulator circuit,
which produces the FM signal. The FM modulator circuit
uses a voltage controlled crystal oscillator (VCXO) which
consists Q1055 (2SC4400), D1046 (1SV229), and
X1002 (22.7767 MHz).
1st IF Circuit/1st Mixer Circuit
The modulated SSB/AM signal is applied to the 2nd
Mixer Q1082 (SA602AD), which produces the 68.33
MHz 2nd IF signal utilizing the 2nd local signal (68.875
MHz). The 2nd IF signal is fed through the 2nd IF filter
XF1004 which strips away unwanted mixer products, then
passes through the 2nd IF amplifier Q1061 (BB304CDW)
to the double balanced mixer D1034 (HSB88WS) which
produces the transmit frequency by applying the local signal (68.430-538.330 MHz) from the PLL Unit. The transmit signal is passed through a low-pass filter (1.8-29.7
MHz), a high-pass filter (50-54 MHz), a band-pass filter
(144-146 MHz), or a band-pass filter (430-450 MHz)
which consists of various inductors and capacitors. The
filtered transmit signal is amplified by Q1017 (2SC3357),
Q1011 (2SK2596), Q1006/Q1007 (2SK2973), and
Q1001/1002 (2SK2975), and is applied to the Power
Amplifier: Q3017/Q3018 (2SC5125: HF/50 MHz) or
Q3016 (2SC3102: 144/430 MHz).
8
Circuit Description
ALC Circuit
The output from the directional coupler is routed from
connector J3002 and applied to the ALC circuit via connector J1001 on the MAIN Unit.
The ALC circuit consists of an op-amp circuit for amplifying the forward and reflected voltage, a time-constant
ALC amplifier, and a transmit signal control circuit on
the MAIN Unit. The forward voltage from connector
J1001 on the MAIN Unit is added with a DC control voltage and is then applied to op-amp IC Q1111 (NJM2902V).
The reflected voltage is added with a DC control voltage
and is then applied to op-amp IC Q1112 (NJM2904V).
In the event of high SWR conditions (SWR 3:1 or more),
transmitter output is reduced, thus protecting the PA Unit
from potential damage; a “HI SWR” indication also appears on the LCD, alerting the user to an antenna problem.
The ALC amplifier magnifies the forward wave output via transistor Q1009 (2SC4154). This output then
passes through a fast-attack, slow-delay RC time-constant
circuit, which consists of R1051 and C1051, for input to
the TX signal control circuit on the MAIN Unit. The TX
control circuit adjusts the IF amplifier gain via gate 2 of
FET Q1061 (BB304CDW) of the 2nd IF amplifier circuit, to prevent the TX output from exceeding the preset
level.
PLL Frequency Synthesizer
The PLL Frequency Synthesizer consists mainly of the
master reference oscillator circuit, 2nd local oscillator circuit, PLL IC, and CAR-DDS and REF-DDS units, which
digitally synthesize carrier outputs, plus a PLL circuit
which contains a voltage controlled oscillator (VCO).
The DDS outputs contain digital amplitude data corresponding to serial frequency data from CPU IC Q1049.
The DDS frequency range is 453.5 ~ 466.5 kHz (center
frequency = 455.0 kHz) for the CAR-DDS, and 7.2-8.0
MHz for the REF DDS.
1st Local Oscillator Circuit
VCO output is buffer-amplified by Q2011 (2SC5374)
and Q2022 (UPC2713T), and passes through a low-pass
filter. It is then fed to the TX/RX frequency mixer circuitry of the MAIN Unit.
2nd Local Oscillator Circuit
The 2nd LO circuit is a Hartley-type overtone oscillator circuit (frequency: 67.875 MHz) composed of Q1052
(2SC4400-3) on the MAIN Unit.
PLL Circuit
The PLL circuit is a frequency mixing type composed
of a VCO, mixer, PLL IC, and loop filter. The VCO consists of five circuits (VCO1, VCO2, VCO3, VCO4 and
VCO5), with a frequency range of 68.430-538.330 MHz
divided into five bands, allocated to the five VCO circuits. VCO1-VCO5 consist mainly of FETs Q2004,
Q2005, and Q2006 (all 2SK210GR); transistors Q2009
and Q2010 (both 2SC5374); diodes D2001-D2006 (all
HVC362), D2007 (1SV282), D2008 (1SV281), and
D2009 (1SV286); and coils T2001-T2003, L2010, and
L2011.
The VCO switching signal from the connector J2002
is used to drive switching transistors Q2001, Q2002,
Q2003, Q2012, and Q2013 (all DTC124EU) to switch
the source terminal of the oscillator FET.
Master Reference Oscillator Circuit
The master reference oscillator uses a Crystal Oscilla-
tor (oscillation frequency: 22.625 MHz) composed of
Q5001 (2SC4400-4), X5001, TC5001, C5001, and
R5005. The reference oscillator signal passes through a
buffer amplifier Q5002 (2SC4400-4), and is then fed to
the MAIN Unit via J5002.
CAR-DDS Circuit REF-DDS Circuit
DDS ICs Q1062 (AD9835BRU), and Q2016
(AD9850BAS) each contain a shift register, selector,
phase accumulator, and ROM. The reference oscillation
frequency (22.625 MHz) that is delivered to each of the
DDS Units is applied to each DDS IC after amplification
by transistors Q1043, Q1046, Q1048, and Q1059 (all
2SC4400-3).
The 68.430-538.330 MHz VCO signal is buffer-amplified by Q2023 (UPC1688G), and fed to PLL IC Q2021
(FQ7925.)
The REF-DDS signal (7.2-8.0 MHz) is fed to PLL IC
Q2021 after it passes through a low-pass filter composed
of C2064, C2067, C2069, C2071, C2075, L2014, L2015,
and L2016, and is fed to PLL IC Q2021 (FQ7925.) The
phase of the reference frequency and that of the signal
input to the PLL IC are compared, and a signal whose
pulse corresponds to the phase difference is produced.
9
Alignment
Introduction and Precautions
The following procedures cover adjustments that are
not normally required once the transceiver has left the
factory. However, if damage occurs and some parts subsequently be replaced, realignment may be required. If a
sudden problem occurs during normal operation, it is likely
due to component failure; realignment should not be done
until after the faulty component has been replaced.
We recommend that servicing be performed by authorized Vertex Standard service technicians, experienced
with the circuitry and fully equipped for repair and alignment. If a fault is suspected, contact the selling dealer for
instructions regarding repair. Authorized Vertex Standard
service technicians have the latest configuration information, and realign all circuits and make complete performance checks to ensure compliance with factory specifications after repairs.
Those who do undertake any of the following alignments are cautioned to proceed at their own risk. Problems caused by unauthorized attempts at realignment are
not covered by the warranty policy. Also, Vertex Standard
must reserve the right to change circuits and alignment
procedures in the interest of improved performance, without notifying owners.
Under no circumstances should any alignment be attempted unless the normal function and operation of the
transceiver are clearly understood, the cause of the malfunction has been clearly pinpointed and any faulty components replaced, and the need for realignment determined
to be absolutely necessary.
The following test equipment (and thorough familiarity with its correct use) is necessary for complete realignment. Most steps do not require all of the equipment listed,
but the interactions of some adjustments may require that
more complex adjustments be performed in a sequence.
Do not attempt to perform only a single step unless it is
clearly isolated electrically from all other steps. Rather,
have all test equipment ready before beginning, and follow all of the steps in a section in the order they are presented.
Required Test Equipment
m Digital DC Voltmeter (high-Z, 1 M-Ohm/V)
m DC Ammeter
m RF Millivoltmeter
m AC Voltmeter
m RF Standard Signal Generator w/calibrated output and
dB scale, 0 dBµ = 0.5µV
m Signal Generator with calibrated output
m Spectrum Analyzer good to at least 1 GHz.
m Frequency Counter
m 50-Ohm Dummy Load (200 watts)
m 100-Ohm Dummy Load (200 watts)
m 150-Ohm Dummy Load (200 watts)
m In-Line Wattmeter (200 watts, 50-Ohm)
m Linear Detector
m RF Coupler
Alignment Preparation & Precautions
A 50-ohm RF Dummy load and in-line wattmeter must
be connected to the main antenna jack in all procedures
that call for transmission, except where specified otherwise. Correct alignment is not possible with an antenna.
After completing one step, read the following step to
determine whether the same test equipment will be required. If not, remove the test equipment (except dummy
load and wattmeter, if connected) before proceeding.
Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, and that this temperature be held constant between
68°~ 86°F (20° ~ 30°C). When the transceiver is brought
into the shop from hot or cold air, it should be allowed
time to come to room temperature before alignment.
Whenever possible, alignments should be made with
oscillator shields and circuit boards firmly affixed in place.
Also, the test equipment must be thoroughly warmed up
before beginning.
Note:Signal levels in dB referred to in this procedure are
based on 0 dBµ = 0.5 µV (closed circuit).
10
Alignment
Local Oscillator Adjustment
Reference Frequency Adjustment
r Connect the frequency counter to TP1032.
r Adjust the trimmer capacitor (TC5001) for 67.875000
MHz (± 10 Hz) on the frequency counter.
r Connect an RF millivoltmeter or an oscilloscope to
pin 2 of J5002 (TP1032) and confirm that the output
level is 115 mv (± 30 mV) rms or 315 mv (± 80mV) p-p.
3ad Local Adjustment
r Connect an RF millivoltmeter or an oscilloscope to
TP1037.
r Key the transceiver on CW, and adjust T1025 for maxi-
mum indication on the RF millivolt-meter.
r Confirm that the indicated voltage is 100 mv (± 30
mV) rms or 300 mv (± 100mV) p-p.
TC5001
PLL Adjustment
VCO VCV Adjustment
r Connect the DC voltmeter to pin 6 of J2002 (TP1028)
and, referring to the table below, tune the transformer/
inductor on each frequency listed. Then confirm that
the correct voltage is present, or adjust the listed component for the required voltage.
Tune to : Adjust / Confirm For
13.895 MHz Adjust T2001 5.5V ±0.5V
76.000 MHz Confirm At least 0.8V
32.995 MHz Adjust T2002 5.5V ±0.5V
13.900 MHz Confirm At least 0.8V
55.995 MHz Adjust T2003 5.5V ±0.5V
88.000 MHz Confirm At least 0.8V
163.995 MHz Adjust L2010 5.5V ±0.5V
118.000 MHz Confirm At least 0.8V
469.995 MHz Adjust L2011 5.5V ±0.5V
420.000 MHz Confirm At least 0.8V
1st Local Output Level
r Connect the RF millivoltmeter to pin 11 of J2002
(TP1029), and set the transceiver to 28.000 MHz.
r Confirm that the RF level is at least +3 dBm or 300
mV rms.
T1025
TP1037
TP1028
TP1029
TP1032
11
Alignment
GND
PTT
MIC
MIC GND
PLL Unlock
r Connect the DC voltmeter to pin 1 of J2002 (TP1027).
r Disconnect the reference oscillator input by unplug-
ging the cable; confirm that the voltmeter shows less
than 0.5 V and that “UNLOCK” is displayed on the
LCD.
r Re-connect the reference input, and confirm that the
voltmeter shows at least 3.5 V and tat the LCD returns
to its normal display.
Idling Current Adjustment
Before alignment, set the mode to CW and tune the
transceiver to 1.800 MHz. Nothing should be connected
to the CW Key Jack. Switch off S1001.
Pre-Driver Stage Idling Current
r Connect the ammeter between TP1019 and TP1020.
r Press the PTT, and adjust VR1004 for an indication
of 35 mA (±2 mA) on the ammeter.
Driver Stage Idling Current
r Connect the ammeter between TP1017 and TP1018.
r Press the PTT and adjust VR1003 for an indication of
30 mA (±2mA) on the ammeter.
Exciter Stage Idling Current
r Terminate J1004 into a ammeter.
r Turn both VR1001 and VR1002 fully counterclock-
wise.
r Press the PTT and adjust VR1002 for an indication of
100mA (±10 mA) on the ammeter.
r Press the PTT and adjust VR1001 for an indication of
200mA (±10 mA) on the ammeter.
r Re-connect J1004 and switch on S1001.
TX IF Adjustment
SSB/CW TX IF Adjustment
r Tune the frequency to the 14 MHz band. Connect the
RF millivoltmeter to TP1033, and terminate J1002
into a 50-Ohm dummy load.
r Inject a 1 kHz tone at 1 mV level to the MIC jack.
r Key the transmitter, and adjust T1033 for maximum
indication on the RF millivoltmeter.
TP1027
T1014
L1049
T1023
VR1005
T1033
TP1033
T1021
T1013 T1012 T1011
S1001
TP1017
VR1004
VR1003
TP1018
TP1019
TP1020
VR1002
VR1001
J1004
J1002
J1003
12
Alignment
FM TX IF Adjustment
r Tune the frequency to the 28 MHz band. Connect the
RF millivoltmeter to TP1033 and leave J1002 terminated into a 50-Ohm dummy load.
r Key the transmitter in the FM mode, and adjust T1014,
T1023, and T1021 alternately for maximum indica-
tion on the RF millivoltmeter.
r Connect the frequency counter to TP1033.
r Key the transmitter in the FM mode without micro-
phone input. Adjust L1049 for a reading of 68.3300
MHz (±100 Hz).
Carrier Balance Adjustment
r Tune the frequency to the 14 MHz band. Terminate
J1002 into a 50-Ohm dummy load and connect a spectrum analyzer or a RF millivoltmeter at this point.
r Key the transmitter in the USB mode without micro-
phone input. Adjust VR1005 for maxi-mum carrier
suppression on the spectrum analyzer or for minimum
indication on the RF millivoltmeter.
VHF TX BPF Adjustment
r Set the frequency to 145.995 MHz. Connect the spec-
trum analyzer to J1002, which should be terminated
into a 50-Ohm dummy load.
r Inject a 1 kHz tone at 1 mV level to the MIC jack.
r Key the transceiver in the USB mode, and adjust
T1013, T1012, and T1011 alternately for maximum
indication on spectrum analyzer.
UHF TX BPF Adjustment
r Set the frequency to 430.000 MHz. Connect the spec-
trum analyzer to J1002, which should be terminated
into a 50-Ohm dummy load.
r Inject a 1 kHz tone at 1 mV level to the MIC jack.
r Key the transceiver in the USB mode, and adjust
TC1004, TC1003 and TC1002 alternately for maximum indication on the spectrum analyzer.
T1026
T1028
TP1044
T1029
T1030
T1034
T1035
T1027
T1019T1018
T1024
TC1003 TC1002
TC1005
T1008
T1010
T1005
T1009
T1006
T1004
TC1001
T1031
TP1043
T1036
T1037
13
Alignment
RX Adjustment
The PA Unit must be connected during RX adjustments.
The signal generator should not be connected to J1003
directly because DC voltage is present there.
RX IF Adjustment
Connect the signal generator to the antenna connector,
and the SINAD meter to the speaker jack.
SSB IF Adjustment
r Tune the transceiver to 51.995 MHz. Inject an RF sig-
nal from a signal generator at 0 dBµ output.
r Adjust T1018, T1019, T1024, T1026, T1028,
T1030, T1035, T1036, T1037, T1034 and T1029
alternately for maximum indication on the DC voltmeter. Several passes may be necessary, as the adjustments inter-react to some degree.
FM IF Adjustment
r Tune the transceiver to 51.995 MHz. Inject an RF sig-
nal from a signal generator at 5 dBµ output, with 1
kHz AF FM modulation at ±3.5 kHz deviation.
r Adjust T1024, T1026, and T1028 alternately for
maximum level on the S-meter.
Air-Band Reception Adjustment
r Connect the DC voltmeter to TP1044.
r Tune the transceiver to 128.00 MHz in the AM mode.
Inject an RF signal from the signal generator at 20 dBµ
output, with 30% AM modulation at 400 Hz audio frequency.
r Adjust T1005 and T1008 for minimum indication on
the DC voltmeter.
VHF Band Alignment
r Connect the DC voltmeter to TP1044.
r Tune the transceiver to 145.995 MHz in the CW mode.
Inject an RF signal from a signal generator at 20 dBµ
output.
r Adjust T1006, T1009 and T1010 alternately for mini-
mum indication on the DC voltmeter.
UHF Band Alignment
r Connect the DC voltmeter to TP1044.
r Tune the transceiver to 439.995 MHz in the CW mode.
Inject a RF signal from the signal generator at 20 dBµ
output.
r Adjust TC1001 for minimum indication on the DC
voltmeter.
W-FM Reception Adjustment
r Connect the SINAD meter to the speaker jack.
r Tune the transceiver to 88.00 MHz. Inject a RF signal
from the signal generator at 30dBu output, with ±22.5
kHz deviation FM modulation of a 1 kHz audio signal.
r Adjust TC1005 for the best SINAD sensitivity. Then
reduce the output level of the signal generator to where
the signal just begins to sound slightly “noisy,” and
adjust TC1005 again for best SINAD.
Image Rejection Trap Adjustment
r Connect the AF millivoltmeter to the speaker jack.
r Tune the transceiver to 51.995 MHz in the FM mode.
Inject an RF signal from the signal generator at 68.330
MHz, with 70 dBµ output.
r Adjust T1004 for minimum indication on the AF
millivoltmeter. Then increase the output level of the
signal generator slightly and adjust T1004 again, so
as to ensure maximum notching of the image.
Noise Blanker Adjustment
r Connect the DC voltmeter to TP1043. Tune the trans-
ceiver to 51.995 MHz and inject an RF signal from the
signal generator at 20 dBµ output.
r Activate the noise blanker, and adjust T1027 and
T1031 for minimum indication on the DC voltmeter
connected to TP1043.
14
Alignment
Power Amplifier Adjustment
HF/50 MHz Idling Current Adjustment
r Tune the transceiver to any HF band, or to the 50 MHz
band.
r Disconnect the jumper between TP3021 and TP3022.
r Connect the ammeter between TP3021 and TP3022.
r Turn VR3002 fully counterclockwise.
r Press the PTT, and adjust VR3002 for an indication
of 300 mA (±10 mA) on the ammeter.
r Re-connect TP3021 and TP3022.
V/UHF Idling Current Adjustment
r Tune the transceiver to the 430 MHz band.
r Connect the ammeter between TP3021 and TP3022.
r Connect the ammeter between TP3021 and TP3022.
r Turn VR3001 fully counterclockwise.
r Press the PTT, and adjust VR3001 for an indication
of 300 mA (±10 mA) on the ammeter.
r Re-connect TP3021 and TP3022.
Directional Coupler Balance Adjustment
r Terminate the antenna jack into a 50-Ohm dummy load.
Set the mode to CW, and connect the DC voltmeter to
TP3001.
r Tune the transceiver to the 28 MHz band, and key the
transceiver.
r Adjust TC3002 for minimum indication on the DC
voltmeter.
r Tune the transceiver to 439.995 MHz, and key the trans-
ceiver.
r Adjust VR3003 for minimum indication on the DC
voltmeter.
r Leave the transceiver on 439.995 MHz band and key
the transceiver.
r Adjust TC3001 for maximum indication on the RF
Power meter.
TP3021
TP3022
TP3001
VR3002
TC3002
VR3003
TC3001
VR3001
15
Alignment
Battery Indicator Alignment
r Connect a DC power supply to pin 4 of JP4007, and
connect pin 6 to the ground lead from the power supply.
r Adjust the power supply voltage exactly to 11.0 V.
r Adjust VR4001 until you see an orange blink on the
BATT-A indicator.
Software Menu Alignment
The antenna connector should be connected to a
dummy load (in cases where transmission is involved) or
the signal generator (in the case of reception). General
alignment conditions are as follows unless otherwise
noted.
AF-gain knob: Center
RF-gain knob: Fully clockwise
SQL: Fully counterclockwise
ATT/IPO/CTCSS/DCS: Off
Output power: High
AGC: Auto
Break-in: On
CW Keyer: Off
VOX: Off
Press and hold in the Multi Function Keys [A], [B],
[C] simultaneously and turn on the transceiver while holding them in; the alignment menu will then be activated
(you will hear a “diddle-diddle-diddle” opening tone sequence to confirm that the alignment menu has been activated).
In the alignment procedures, each alignment parameter is selected by rotating the MAIN dial. Each Alignment item is selected by rotating the MEM/VFO CH knob.
To store the alignment parameters when you are satisfied with the adjustment, press the [MENU] key for longer
than a half second.
16
VR4001 JP4007
Alignment
RX Gain Adjustment
r Select the CW mode. Tune the transceiver to the 1.8
MHz band. Select “HF1RXG” in the menu by rotating
the MEM/VFO CH knob, if necessary. Inject an RF
signal from the signal generator at 9 dBµ output.
r Adjust the “HF1RXG” parameter by rotating the main
dial to the point where the first dot of the S-meter (S1)
appears.
r The other RX gain adjustments (see the chart below)
should be performed in the same way. The output levels of the signal generator at each frequency are shown
below.
Menu Frequency Output Level of SG
01: HF1RXG 1.8 MHz Band 9 dBu
02: HF2RXG 7 MHz Band 9 dBu
03: HF#RXG 21 MHz Band 6 dBu
04: 50MRXG 50 MHz Band 0 dBu
05: VHFRXG 144 MHz Band 0 dBu
06: UFFRXG 430 MHz Band 0 dBu
SSB S-Meter Adjustment
r Tune the transceiver to the 21 MHz band in the CW
mode. Inject an RF signal from the signal generator at
36 dBµ output.
r Select menu item “07: SSB-S9” and press the [A] key
to set this parameter.
r Tune the transceiver to the 21 MHz band in the CW
mode. Inject an RF signal from the signal generator at
86 dBµ output.
r Select menu item “08: SSB-FS” and press the [A] key
to set this parameter.
FM S-Meter Adjustment
r Tune the transceiver to the 144 MHz band in the FM
mode. Inject an RF signal from the signal generator at
0 dBµ output, with ±3.5 kHz deviation FM Modulation of a 1 kHz tone.
r Select menu item “09: FM-S1” and press the [A] key
to set this parameter.
r Increase the output level of the signal generator up to
25 dBµ. Select menu item “10: FM-FS” and press [A]
key to set this parameter.
FM Center Meter Adjustment
r Tune the transceiver to the 144 MHz band in the FM
mode. Inject an RF signal from the signal generator at
10 dBµ output, with ±3.5 kHz deviation FM Modulation of a 1 kHz tone.
r Set the frequency of the signal generator 3 kHz below
the receiving frequency of the transceiver. Select menu
item “11: DISC-L” and press the [A] key to set this
parameter.
r Set the frequency of the signal generator 3 kHz above
the receiving frequency of the trans-ceiver. Select menu
item “12: DISC-H” and press the [A] key to set this
parameter.
FM Squelch Adjustment
r Tune the transceiver to the 144 MHz band in the FM
mode. Confirm that the squelch knob is turned fully
counterclockwise.
r Inject an RF signal from the signal generator at -15
dBµ output, with ±3.5 kHz deviation FM Modulation
of a 1 kHz tone. Select menu item “13: FM-TH1” and
press the [A] key to set this parameter. Select menu
item “14: FM-TH2” and press the [A] key again.
r Inject an RF signal from the signal generator at 0 dBµ
output, with ±3.5 kHz deviation FM Modulation of a 1
kHz tone. Select menu item “15: FM-TI1” and press
the [A] key to set this parameter. Select menu item
“16: FM-TI2” and press the [A] key again.
Power Supply Voltage Display Adjustment
r Tune the transceiver to the 144 MHz band in the FM
mode. Confirm that the power supply voltage is 13.8
V (±0.1 V).
r Select menu item “17: VCC” and adjust this param-
eter such that “138” is displayed on the LCD.
17
Alignment
Over-current Protection Adjustment
r Set the mode to CW. Select menu item “18: HF1-IC.”
Tune the transceiver to the 1.8 MHz band and key the
transceiver. Adjust this parameter for 140 Watts of
transmission power.
r Select menu item “19: HF2-IC.” Tune the transceiver
to the 7 MHz band and key the trans-ceiver. Adjust
this parameter for 130 Watts of transmission power.
r Select menu item “20: HF3-IC.” Tune the transceiver
to the 21 MHz band and key the transceiver. Adjust
this parameter for 130 Watts of transmission power.
r Select menu item “21: 50M-IC.” Tune the transceiver
to the 50 MHz band and key the transceiver. Adjust
this parameter for 120 Watts of transmission power.
r Select menu item “22: VHF-IC.” Tune the transceiver
to the 144 MHz band and key the transceiver. Adjust
this parameter for 60 Watts of transmission power.
r Select menu item “23: UHF-IC.” Tune the transceiver
to 430.000 MHz and key the trans-ceiver. Adjust this
parameter for 25 Watts of transmission power.
RF Power Adjustment
r Tune the transceiver to the 1.8 MHz band in the CW
mode. Select menu item “24: HF1-MAX.” Key the
transmitter, and adjust this parameter for 100 Watts
(±5 W) of transmission power.
r Select menu item “25: HF1-MID2.” Key the transmit-
ter, and confirm that the output power is 50 W (±5W).
In case the transmission power is not within the speci-
fied tolerance, adjust this parameter for 50 W (±5 W)
of transmission power.
r Select menu item “26: HF1-MID1.” Key the transmit-
ter, and confirm that the output power is 10 W (±1 W).
In case the power is not within the specified tolerance,
adjust this parameter for 10 W (±1 W) of transmission
power.
r Select menu item “27: HF1-MIN.” Key the transmit-
ter, and confirm that the output power is 5 W (±1 W).
In case the power is not within the specified tolerance,
adjust this parameter for 5 W (±1 W) of transmission
power.
r The other RF power adjustment menus, [HF2-**] and
[HF3-**], should be adjusted in the same manner as
shown above for the 7 MHz and 21 MHz bands re-
spectively.
r Tune the transceiver to the 50 MHz band in the CW
mode. Select menu item “36: 50M-MAX.” Key the
transmitter, and adjust this parameter for 100 W (±5
W) of transmission power.
r Select menu item “37: 50M-MID2.” Key the trans-
mitter, and confirm that the output power is 50 W (±5
W). In case the transmission power is not within the
specified tolerance, adjust this parameter for 50 W (±5
W) of transmission power.
r Select menu item “38: 50M-MID1.” Key the trans-
mitter, and confirm that the output power is 20 W (±
2W). In case the power is not within the specified tol-
erance, adjust this parameter for 20 W (±2 W) of trans-
mission power.
r Select menu item “39: 50M-MIN.” Key the transmit-
ter, and confirm that the output power is 5 W (±1 W).
In case the power is not within the specified tolerance,
adjust this parameter for 5 W (±1 W) of transmission
power.
r Tune the transceiver to the 144 MHz band in the CW
mode. Select menu item “40: VHF-MAX.” Key the
transmitter, and adjust this parameter for 50 W (±2.5
W) of transmission power.
r Select menu item “41: VHF-MID.” Key the transmit-
ter, and confirm that the output power is 20 W (±2 W).
In case the transmission power is not within the speci-
fied tolerance, adjust this parameter for 20 W (±2 W)
of transmission power.
18
Alignment
r Select menu item “42: VHF-MIN.” Key the transmit-
ter, and confirm that the output power is 5 W (±1 W).
In case the power is not within the specified tolerance,
adjust this parameter for 5 W (±1 W) of transmission
power.
r Tune the transceiver to the 430 MHz band in the CW
mode. Select the menu item “43: UHF-MAX.” Key the
transmitter, and adjust this parameter for 20 W (±1 W)
of transmission power.
r Select menu item “44: UHF-MID.” Key the transmit-
ter, and confirm that the output power is 20 W (±0.3
W). In case the transmission power is not within the
specified tolerance, adjust this parameter for 20 W
(±0.3 W) of transmission power.
TX Gain Adjustment
r Select the USB mode. Inject a 1 mV audio signal at a
frequency of 1 kHz from the AF generator into the MIC
jack.
r Tune the transceiver to the 1.8 MHz band and key the
transmitter. Select menu item “45: HF1TXG” and adjust this parameter for 70 W (±10 W) of transmission
power.
r The other TX gain adjustment menus, “46: HF2TXG”,
“47: HF3TXG”, and “48: 50MTXG”, should be adjusted in the same manner as detailed above on the 7
MHz, 21 MHz, and 50 MHz bands, respectively.
r Tune the transceiver to the 144 MHz band and key the
transmitter. Select menu item “49: VHFTXG” and adjust this parameter for 35 W (±5 W) of transmission
power.
r Tune the transceiver to the 430 MHz band and key the
transmitter. Select menu item “50: UHFTXG” and adjust this parameter for 10 W (±2 W) of transmission
power.
Reverse ALC Adjustment
r Set the mode on CW, and connect a 150-Ohm dummy
load to the antenna connector.
r Key the transceiver on the 1.8 MHz band, and select
menu item “53: HF1-RV;” adjust this parameter for an
“S-8” S-meter reading on the LCD.
r The other reverse ALC adjustment menus, “54: HF2-
RV”, “55: HF3-RV”, and “56: 50M-RV”, should be
adjusted in the same manner as shown above on the 7
MHz, 21 MHz, and 50 MHz bands, respectively.
r Key the transceiver on the 144 MHz band and select
menu item “57: VHF-RV;” adjust this parameter for an
“S-6” S-meter reading on the LCD.
r Key the transceiver on the 430 MHz band and select
menu item “58: UHF-RV;” adjust this parameter for an
“S-3” S-meter reading on the LCD.
Carrier Level Adjustment
r Tune the transceiver to the 21 MHz band in the CW
mode. Connect a 50-Ohm dummy load to the antenna
connector. Select menu item “59: CW-CAR” and key
the transceiver.
r Set this parameter such that the center of the meter on
the LCD lights up.
r Connect the oscilloscope to the antenna connector via
an appropriate attenuator.
r Set the mode to AM. Select menu item “60: AM-CAR.”
Inject a 1.5 mV audio signal at a frequency of 1 kHz
from the audio generator into the microphone jack.
r Key the transceiver and adjust this parameter for 33%
AM modulation on the oscilloscope.
ALC Meter Adjustment
r Tune the transceiver to the 21 MHz band in the USB
mode. Select menu item “51: ALC-1.” Key the transceiver without microphone input and press the [A] key.
Now, a value which the microprocessor computes will
be displayed on the LCD.
r Rotate the main dial to adjust this parameter to a read-
ing four digits lower than the parame-ter value displayed in the previous step.
r After setting the parameter, confirm that all the dots of
the ALC meter have gone out.
r Select menu item “52: ALC-M.” Inject a 4.0mV AF
signal at 1 kHz audio frequency from an audio generator and key the transceiver.
r Press the [A] key and confirm that 9 dots of the ALC
meter light up on the LCD.
19
Alignment
FM Modulation Adjustment
r Tune the transceiver to the 144 MHz band in the FM
mode. Connect the FM linear detector to the antenna
connector via an appropriate attenuator. Select menu
item “61: DEV-W.” Inject a 15 mV audio signal at 1
kHz from the audio generator.
r Key the transceiver and adjust this parameter for a
maximum deviation of ±4.5 kHz (±0.2 kHz) on the
FM linear detector.
r Change the menu item to “62: DEV-N.” Key the trans-
ceiver and adjust this parameter for maximum deviation of ±2.25 kHz (±0.1 kHz) on the FM linear detector.
r Change the menu item to “63: M-MTR.” Key the trans-
ceiver and set this parameter for an “S-9” indication
on the S-meter on the LCD.
r Change the menu item to “64: DTMF”. Key the trans-
ceiver with DTMF signal input (press any DTMF key
on the MH-36E8J microphone) and adjust this parameter for a maximum deviation of ±3.5 kHz (±0.3 kHz)
on the FM linear detector.
r Change the menu item to “65: CTCSS”. Key the trans-
ceiver without microphone input and adjust this parameter for a maximum deviation of ±0.7 kHz (±0.1
kHz) on the FM linear detector.
r Change the menu item to “66: DCS”. Key the trans-
ceiver without microphone input and adjust this parameter for a maximum deviation of ±0.7 kHz (±0.2
kHz) on the FM linear detector.
VSWR Adjustment
r Connect a 100-Ohm dummy load to the antenna con-
nector.
r Tune the transceiver to the 14 MHz band in the CW
mode.
r Select menu item “69: SWR2.” Key the transceiver
and press the [A] key to set this parameter.
r Connect a 150-Ohm dummy load to the antenna con-
nector.
r Select menu item “70: SWR3.” Key the transceiver
and press the [A] key to set this parameter.
ATAS control voltage confirmation
r Connect the DC voltmeter to the ANT (HF/50 MHz)
jack.
r Select menu item “71: ATAS.”
r Press the [A] key, and confirm that the voltage is 9.0 to
10.0 Volts.
r Press the [B] key, and confirm that the voltage is 7.5
to 8.5 Volts.
r Press the [C] key, and confirm that the voltage is more
than 10.5 Volts.
This completes the internal alignment routine for all
bands. To save all settings and exit, press and hold in the
[F] key for at least 0.5 second.
SSB Carrier Point Adjustment
r Tune the transceiver to the 21 MHz band. Select menu
item “67: LSB-CP.” Set the mode to LSB, and inject a
1.0 mV audio signal from the audio generator into the
MIC jack.
r Lower the audio frequency down to 400 Hz and adjust
this parameter for 20 W output power from the transceiver.
r Change the audio frequency to 2600 Hz, and confirm
that the output power is at least 20 W (± 2 W).
r The adjustment for the USB carrier point is performed
in the same manner as done for LSB by changing the
transmission mode to USB and the menu item to “68:
USB-CP.”
20
Circuit Diagram
MAIN Unit
21
MAIN Unit
Note:
22
MAIN Unit
Parts Layout
HD64F2134FA20
(Q1049)
TC4W53FU
(Q1038)
2SK2975
(Q1001, 1002)
BU4094BCFV-E2
(Q1003, 1004,
1010)
BU4066BCFV-E2
(Q1121, 1122)
24LC128T
(Q1065)
RT1N241M (N2)
(Q1047, 1086)
UMH6N (H6)
(Q1124)
M62352GP
(Q1016)
SA602AD
(Q1071, 1082)
2SB624 (BV3)
(Q1013, 1020)
2SA1602A (MF)
(Q1036)
BU4011BF
(Q1113)
KIA7808API
(Q1014)
2SK2973 (K1)
(Q1006, 1007)
NJM2902V
(Q1114, 1120)
TDA2003H
(Q1105)
2SC4154E (LE)
(Q1037, 1057,
1064, 1069,
1077, 1085,
1090, 1093)
EA C
FB D
1
2
3
UMC5N (C5)
(Q1018, 1060)
SPM5001
(Q1128)
DAP236U (X)
(D1019, 1031)
DAP222 (P)
(D1079)
FMG5 (G5)
(Q1015)
TA75S01F (SA)
(Q1095)
MC2850 (A7)
(D1032)
2SD2211 (DQR)
(Q1108)
DAN222 (N)
(D1083)
TC4S66F (C9)
(Q1100)
DA221 (K)
(D1043)
1SS372 (N9)
(D1061, 1064)
DTC114EU (24)
(Q1053)
IMN10 (N10)
(D1044, 1047,
1048)
TC4S81F (C2)
(Q1129)
HSB88WSTR
(D1034)
4
5
6
7
Side A
23
MAIN Unit
Parts Layout
ea c
fb d
BU4053BCFV-E2
CXA1611N
(Q1058)
1
2
3
AK7712VT
(Q1092)
NJM2902V
(Q1111, 1115, 1116,
1118, 1119)
UMD2N (D2)
(Q1029)
NJM2904V
(Q1112, 1117, 1123)
2SJ355 (PQ)
(Q1031)
2SA1602A (MF)
(Q1040, 1050,
1099)
(Q1066)
TA31136FN
(Q1080)
AD9835BRU
(Q1062)
TC4W53FU
(Q1067, 1098)
2SK2685 (WV-)
(Q1026)
UMH6N (H6)
(Q1027, 1125,
1126)
M62364FP
(Q1087)
UPC2710T (C1F)
(Q1022)
PST3445UR (DF)
(Q1030)
M51132FP
(Q1103)
BB304CDW (DW)
(Q1023, 1024,
1061, 1089)
BA05FP (Q)
(Q1019)
Side B
4
5
2SC4154E (LE)
(Q1005, 1008, 1009,
1012, 1039, 1042,
1044, 1045, 1054,
1055, 1068, 1070,
1074, 1076, 1078,
1094, 1096, 1097,
1109)
2SC5374 (NA)
(Q1025)
2SC4400 (RT)
(Q1041, 1043, 1046,
1048, 1051, 1051,
1052, 1056, 1059)
M5278L05M
(Q1028)
2SC3357 (RK)
(Q1017)
BB305CEW-TL (EW)
(Q1073, 1075, 1079,
1081, 1088)
UMC5N (C5)
(Q1033, 1034,
1063)
DTC114EU (24)
(Q1102, 1110)
RT1N241M (N2)
(Q1021, 1032,
1035, 1091,
1107)
2SK302Y (TY)
(Q1083, 1084)
FMG5 (G5)
(Q1104, 1106)
2SK2596 (BX)
(Q1011)
6
DAP236U (X)
(D1001, 1002, 1011,
1012, 1018, 1025,
7
1030, 1035)
DAP222 (P)
(D1063, 1065, 1072,
1076, 1078)
HZM27WA (27A)
(D1077, 1080)
1SS302 (C3)
(D1010)
DA221 (K)
(D1037, 1057)
1SS372 (N9)
(D1058)
DAN222 (N)
(D1033, 1069,
1070)
DAN235U (M)
(D1039, 1049,
1050, 1054)
MA132WK (MU)
(D1029)
24
Parts List
MAIN Unit
REF.
C 1001 CHIP CAP. 0.001uF 50V B GRM39B102K50PT K22174821 1- B c4
C 1002 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c4
C 1003 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B d6
C 1004 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B d6
C 1005 CHIP CAP. 6pF 50V CH GRM39CH060D50PT K22174207 1- B d6
C 1007 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E7
C 1008 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E7
C 1009 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E7
C 1010 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E6
C 1011 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E7
C 1012 CHIP CAP. 100pF 50V CH UMK105CH101JW-F K22178282 1- B a6
C 1013 CHIP CAP. 220pF 25V CH TMK105CH221JW-F K22148246 1- B a6
C 1014 CHIP CAP. 100pF 50V CH UMK105CH101JW-F K22178282 1- B a6
C 1015 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B a6
C 1016 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B a6
C 1017 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B a6
C 1018 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A F6
C 1019 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A F6
C 1020 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A F6
C 1021 AL.ELECTRO.CAP. 47uF 16V ECEV1CA470SP K48120005 1- A D5
C 1023 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c5
C 1024 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c7
C 1025 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D6
C 1026 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D6
C 1029 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D6
C 1030 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c5
C 1031 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- A C4
C 1032 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B a6
C 1033 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B a6
C 1034 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- A D6
C 1035 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- A D6
C 1037 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D6
C 1038 CHIP CAP. 12pF 50V CH GRM39CH120J50PT K22174213 1- A D6
C 1039 CHIP CAP. 22pF 50V CH GRM39CH220J50PT K22174219 1- A D6
C 1040 CHIP TA.CAP. 1uF 16V TESVA1C105M1-8R K78120009 1- B a6
C 1042 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- A C4
C 1043 CHIP CAP. 10pF 50V CH GRM39CH100D50PT K22174211 1- B b6
C 1044 CHIP CAP. 0.01uF 50V B GRM39B103M50PT K22174823 1- B b6
C 1045 AL.ELECTRO.CAP. 10uF 16V RV2-16V100MB55-R K48120014 1- A D5
C 1046 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D5
C 1047 CHIP TA.CAP. 4.7uF 10V TEMSVA1A475M-8R K78100022 1- B a6
C 1049 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A E6
C 1050 CHIP CAP. 8pF 50V CH GRM39CH080D50PT K22174209 1- B b6
C 1051 CHIP TA.CAP. 2.2uF 10V TESVA1A225M1-8R K78100021 1 B a6
C 1052 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- A C3
C 1053 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D5
C 1054 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B b6
DESCRIPTION VALUE WV TOL. VXSTD P/NMFR’S DESIG VERS.
*** MAIN UNIT ***
PCB with Components CP7373005 USA TYP A2
PCB with Components CP7373006 EXP TYP A1
PCB with Components CP7373007 EXP TYP A2
PCB with Components CP7373008 EXP TYP A3
PCB with Components CP7373011 EXP TYP B3
PCB with Components CP7373014 EXP TYP C3
PCB with Components CP7373015 EXP TYP D1
PCB with Components CP7373016 EXP TYP D2
PCB with Components CP7373017 AUS TYP H1
PCB with Components CP7373018 AUS TYP H2
PCB with Components CP7373021 FRA TYP E3
Printed Circuit Board FR007880C 1-
LOT.SIDE.
LAY ADR.
25
MAIN Unit
REF.
C 1055 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B b6
C 1056 CHIP CAP. 0.1uF 10V B GRM36B104K10PT K22108802 1- B a6
C 1057 AL.ELECTRO.CAP. 10uF 16V RV2-16V100MB55-R K48120014 1- A D5
C 1058 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- B a6
C 1059 CHIP TA.CAP. 10uF 10V TEMSVA1A106M-8R K78100028 1- B a6
C 1061 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A E5
C 1063 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- B a6
C 1064 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B b5
C 1065 CHIP CAP. 10pF 50V CH GRM39CH100D50PT K22174211 1- B b5
C 1066 AL.ELECTRO.CAP. 100uF 16V RC2-16V101MS(6X7) K40129038 1- A E6
C 1067 CHIP CAP. 0.01uF 50V B GRM39B103M50PT K22174823 1- B b5
C 1068 AL.ELECTRO.CAP. 10uF 16V RV2-16V100MB55-R K48120014 1- A E5
C 1069 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A E5
C 1070 CHIP CAP. 120pF 50V CH UMK105CH121JW-F K22178284 1- A C4
C 1071 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B a5
C 1072 CHIP CAP. 150pF 50V CH GRM36CH151J50PT K22178240 1- A C4
C 1073 CHIP TA.CAP. 0.47uF 25V TESVA1E474M1-8R K78140009 1- B a6
C 1074 CHIP CAP. 0.1uF 25V B GRM40B104M25PT K22140811 1- B b5
C 1075 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- B a5
C 1076 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B a5
C 1079 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B b5
C 1080 CERAMIC CAP. 7pF 50V CH RBU04CH070C-L05AC K02179083 1- B c4
C 1081 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E5
C 1082 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A D4
C 1083 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A C5
C 1084 CHIP CAP. 22pF 50V CH UMK105CH220JW-F K22178266 1- B c4
C 1085 CHIP CAP. 0.001uF 50V B GRM39B102K50PT K22174821 1- B a5
C 1086 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B c4
C 1087 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c4
C 1088 CHIP CAP. 2pF 50V CK UMK105CK020CW-F K22178250 1- A D4
C 1090 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B a5
C 1091 CHIP CAP. 47pF 50V CH UMK105CH470JW-F K22178274 1- B b4
C 1092 CHIP CAP. 15pF 50V CH UMK105CH150JW-F K22178262 1- B c5
C 1093 CHIP TA.CAP. 10uF 10V TEMSVA1A106M-8R K78100028 1- A C4
C 1094 CHIP CAP. 470pF 50V B UMK105B471KW-F K22178825 1- B b4
C 1095 CHIP CAP. 33pF 50V CH UMK105CH330JW-F K22178270 1- B c5
C 1096 CHIP CAP. 0.01uF 16V B GRM36B103K16PT K22128804 1- A E5
C 1097 AL.ELECTRO.CAP. 100uF 6.3V RC2-6V101M-T34(5X7) K46080006 1- A E6
C 1099 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A C4
C 1100 CHIP CAP. 100pF 50V CH UMK105CH101JW-F K22178282 1- B a5
C 1101 CHIP CAP. 6pF 50V CH UMK105CH060DW-F K22178254 1- B c4
C 1102 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c4
C 1103 CHIP CAP. 0.047uF 10V BJ LMK105BJ473KV-F K22108805 1- B a5
C 1104 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c4
C 1105 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B b4
C 1106 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B b5
C 1107 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A E5
C 1108 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c4
C 1109 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A C4
C 1110 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B c4
C 1111 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A E5
C 1112 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B c4
C 1113 CHIP CAP. 470pF 50V B UMK105B471KW-F K22178825 1- B b4
C 1114 CHIP CAP. 33pF 50V CH UMK105CH330JW-F K22178270 1- B b4
C 1115 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- A D4
C 1116 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- A D4
C 1117 CHIP CAP. 5pF 50V CH UMK105CH050CW-F K22178253 1- A D4
C 1118 CHIP CAP. 2pF 50V CK GRM36CK020C50PT K22178204 1- B b4
C 1119 CHIP CAP. 0.001uF 50V B UMK105B102KW-F K22178829 1- B c4
C 1120 CHIP CAP. 0.1uF 16V B GRM39B104K16PT K22124805 1- B c4
DESCRIPTION VALUE WV TOL. VXSTD P/NMFR’S DESIG VERS.
LOT.SIDE.
LAY ADR.
26
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