Yaesu FTDX10 Manual

HF/50 MHz TRANSCEIVER
FTDX10
Introduction
This manual provides the technical information necessary
for servicing the FTDX10 HF/50 MHz TRANSCEIVER.
Servicing this equipment requires expertise in handling
surface-mount chip components. Attempts by non-qualied
persons to service this equipment may result in permanent
damage not covered by the warranty, and may be illegal in
some countries.
While we believe the information in this manual to be cor-
rect, YAESU assumes no liability for damage that may oc-
cur as a result of typographical or other errors that may be
present. Your cooperation in pointing out any inconsisten-
cies in the technical information would be appreciated.
Important Note
This transceiver was assembled using Pb (lead) free solder, based on the RoHS specication.
Only lead-free solder (Alloy Composition: Sn-3.0Ag-0.5Cu) should be used for repairs performed on this apparatus. The solder stated
above utilizes the alloy composition required for compliance with the lead-free specication, and any solder with the above alloy com-
position may be used.
Technical Supplement
EH076H90A
©2021 YAESU MUSEN CO., LTD.
Contents
Specications
Exploded View
Block Diagram
Connection Diagram
Alignment
Board Unit (Schematics, Layouts & Parts)
MAIN Unit
FINAL Unit
DISPLAY Unit
SW Unit
MEMORY Unit
VR Unit
ENC-A Unit
ENC-B Unit
DC-DC Unit

FTDX10 Technical SupplementSPESIFICATIONS -1
Specications
General
Tx Frequency Ranges: 1.8 MHz - 54 MHz (Amateur bands only)
70 MHz - 70.5 MHz (UK Amateur bands only)
Rx Frequency Range: 30 kHz - 75 MHz (operating)
 1.8MHz-29.699999MHz(speciedperformance,Amateurbandsonly)
 50MHz-53.999999MHz(speciedperformance,Amateurbandsonly)
70 MHz - 70.499999 MHz(speciedperformance,UKAmateurbandsonly)
Emission Modes: A1A(CW),A3E(AM),J3E(LSB,USB),F3E(FM),F1B(RTTY),G1B(PSK31)
Frequency Steps: 1/10Hz(SSB,CW),10/100Hz(AM,FM)
Antenna Impedance: 50Ohms,unbalanced(AntennaTunerOFF)
 16.7-150Ohms,unbalanced
 (AntenneTunerON,1.8MHz-29.7MHzAmateur bands)
 25-100Ohms,unbalanced(Antenne TunerON,50MHzAmateur band)
Operating Temperature Range: +32°Fto+122°F(0°Cto+50°C)
Frequency Stability: ±0.5ppm(after1minute@+32°Fto+122°F[0°Cto+50°C])
Supply Voltage: DC13.8V±15%(NegativeGround)
Power Consumption(Approx.): Rx(nosignal) 2.5A
 Rx(signalpresent) 3A
 Tx (100 W) 23 A
Dimensions (WxHxD): 10.5” x 3.6” x 10.4” (266 x 91 x 263 mm)
Weight (Approx.): 13.0 lbs (5.9 kg)
Transmier
Power Output: 5-100was(5-25WAMcarrier)
Modulation Types: J3E(SSB):Balanced,
 A3E(AM):Low-Level(EarlyStage),
 F3E(FM):VariableReactance
Maximum FM Deviation: ±5.0kHz/±2.5kHz(Narrow)
Harmonic Radiation: Beerthan–50dB(1.8MHz-29.7MHzAmateurbands)
 Beerthan–63dB(50 MHz Amateur band)
 Beerthan–60dB(70MHzUKAmateurband)
SSB Carrier Suppression: Atleast60dBbelowpeakoutput
Undesired Sideband Suppression:Atleast60dBbelowpeakoutput
3rd-order IMD: –31dB@14MHz100WPEP
Bandwidth: 3kHz(LSB/USB),500Hz(CW),6kHz(AM),16kHz(FM)
Audio Response(SSB): Notmorethan–6dBfrom300to2700Hz
Microphone Impedance: 600 Ohms (200 to 10 kOhms)

FTDX10 Technical SupplementSPESIFICATIONS -2
Specications
Receiver
Circuit Type: DoubleSuperheterodyne
Intermediate Frequencies: 1 st: 9.005 MHz
2 nd: 24 kHz
Sensitivity: SSB,CW(BW:2.4kHz,10dBS+N/N)
 1.8MHz-30MHz 0.16µV(AMP2“ON”)
50 MHz - 54 MHz 0.125µV(AMP2“ON”)
 70MHz-70.5MHz 0.16µV(AMP2“ON”)
 AM(BW:6kHz,10dBS+N/N,30%modulation@400Hz)
0.5 MHz - 1.8 MHz 7.9 µV
 1.8MHz-30MHz 2µV(AMP2“ON”)
50 MHz - 54 MHz 1µV(AMP2“ON”)
 70MHz-70.5MHz 2µV(AMP2“ON”)
 FM(1kHz3.5kHzDEVBW:12kHz,12dBSINAD)
28 - 30 MHz 0.25µV(AMP2“ON”)
50 MHz - 54 MHz 0.2µV(AMP2“ON”)
 70MHz-70.5MHz 0.25µV(AMP2“ON”)
Selectivity(typ): Mode –6dB –60dB
 CW(BW:0.5kHz) 0.5kHzorbeer 750Hzorless
 SSB(BW:2.4kHz) 2.4kHzorbeer 3.6kHzorless
AM(BW:6kHz) 6kHzorbeer 15kHzorless
 FM(BW:12kHz) 12kHzorbeer 25kHzorless
Image Rejection: 70dBorbeer(1.8MHz-28MHzAmateurbands)
 60dBorbeer(50MHzAmateurband)
 60dBorbeer(70MHzUKAmateurband)
Maximum Audio Output: 2.5Winto4Ohmswith10%THD
Audio Output Impedance: 4 to 16 Ohms (4 Ohms: nominal)
Conducted Radiation: Lessthan4nW
Specications are subject to change, in the interest of technical improvement, without notice or obligation,
and are guaranteed only within the amateur bands.

EXPLODED VIEW -1 FTDX10 Technical Supplement
Exploded View
CD1235001
ENC-B-UNIT
RA6358900
RUBBER RING(MAIN)
RA6339400
KNOB MAIN ASSY
RA152820A
WASHER(FELT)
RA0729400
WASHER (POLYSLIDER)
U9900192
WAVE WASHER WW-6012(SUS)
RA6328000
RUBBER RING(SUB)
RA6329200
ENCODER KNOB(SUB)
RA6206100
COVER PLATE(ENCODER)
RA6266900
WASHER(CLEAR)
RA6227100
WASHER(CLEAR)
RA6206000
WASHER(CLEAR)
RA6205700
ROTOR(ENCODER)
RA6205800
SLIT PLATE(250)
RA6205900
HOLDER PLATE
RA6335000
CASE(ENCODER76)
①
①①②②②②②②③③④④RA6220300
WASHER(PORON)
RA6220200
SLEEVE
※2※2※1
RA6310400
LEVER
RA6218300
PORON SHEET (5081)
RA138520A
ENCODER KNOB(OUT)
RA1385100
ENCODER KNOB(IN)
※5※5※4※4※3※3RA6308800
WINDOW
RA6312000
NAME PLATE(YAESU)
R7155600 (6 pcs)
HIMERON
RA6308600 (Lot. 1-4)
RA630860A (Lot. 5-)
FRONT PANEL(PRT)
RA6219900
ENCODER KNOB(MULTI)
RA1384900
VOLUME KNOB(IN)
RA138500A
VOLUME KNOB(OUT)
1: Accessory with RA6339400 KNOB MAIN ASSY
2: Accessory with Q9000833 ENC. RMS20-250-201-1V(D-CUT)
3: Accessory with J62800152 POT:RH96D1144 25F RY-10302 (VR6901) on the VR-UNIT
4: Accessory with Q9001052 ENCODER:RH90D265AE20-25F (S7001) on the ENC-A-UNIT
5: Accessory with Q9000950 ENCODER RH90D265E20 RY-10164 (S7002) on the ENC-A-UNIT
REF. YAESU P/N Description Qty.
①U24206001 BIND HEAD TAPTITE-B M2.6X6 3
②U9900094 PAN TAPTITE-B M2X5NI#2 GUIDE 6
③U44206001 PAN HEAD TAPTITE-B M2.6X6 2
④U9900117 PAN HEAD TAPTITE-B M2X4NI #2 2
Non-designated parts are available only as part of a designated assembly.

EXPLODED VIEW -2 FTDX10 Technical Supplement
Exploded View
A
A
B
B
C
C
D
D
E
E
F
F
G
G
RA6308600 (Lot. 1-4)
RA630860A (Lot. 5-)
FRONT PANEL(PRT)
RA6345000
KNOB ASSY(L2)
RA6270700
DOUBLE FACE (15x12)
L9190151 (2 pcs)
CORE E04FD110508
RA6358300
DOUBLE FACE TAPE(7x12)
L9190151
CORE E04FD110508
Q7000995
LCD MODULE:LMUM050WVGNCB-4R
RA6358400
COPPER TAPE(25x30)
RA632860A
KNOB ASSY(PWR)
RA6309100
PUSH KNOB (A/B)
RA6350800
KNOB ASSY(MAINR)
RA6309500
KNOB ASSY (APF)
RA6347900
PUSH KNOB(R1)
RA6329000
PUSH KNOB (L1)
RA6309800
KNOB ASSY(NB)
RA6329100
LIGHT GUIDE(SHIFT)
RA6353100
SPONGE RUBBER(C)
RA6352900
SPONGE RUBBER(A)
RA6353000
SPONGE RUBBER(B)
RA6352900
SPONGE RUBBER(A)
RA6353000
SPONGE RUBBER(B)
CS2682701
SW-ASSY
RA6310000
LCD SPACER(A)
RA631010A (4 pcs)
LCD SPACER(B)
RA6346500
BLIND SHEET(9X80)
RA6310200
PANEL FRAME
RA6333000 (3 pcs)
GASKET (550.5)
CD1113001
MEMORY-UNIT
CS2681701
DISPLAY-ASSY
CD1234001
ENC-A-UNIT
CS2686101
VR-UNIT
RA6328800
KNOB ASSY (MAINL)
RA089560A
GASKET W9H4L40
RA089560A
GASKET W9H4L40
RA6310300
SHIELD CASE(DISP)
RA6353000
PORON SHEET(2103)
RA6363400
BLIND SHEET (4X9)
RA6366100 (3 pcs)
SHEET(3X5)
Connect to J1014
on the MAIN-Unit
Connect to J2502, J2508 and J2509
on the MAIN-Unit
Connect to J1801
on the MAIN-Unit
Connect to J1015
on the MAIN-Unit
Connect to J1016
on the MAIN-Unit
Q9000833
ENC. RMS20-250-201-1V(DｰCUT)
①②①
①①
①①
①①
①
①①①
①
①③③②②②②②②②②②②②②②②T9207936
WIRE ASSY:AH068H-70MM40P
T9207716
WIRE ASSY AH065H 40MM12P
T9207569
WIRE ASSY AH046H 60MM12P
T9207942
WIRE ASSY:AH068H-40MM6P
T9207338
WIRE ASSY AH025H 120MM
T9207939
WIRE ASSY:AH068H-480MM20P
Connect to the ENC-B-Unit
DISPAY UNIT
SW-UNIT
RA631010A (Lot. 5-)
LCD SPACER(B)
④④④④④④REF. YAESU P/N Description Qty.
①U24105001 BIND HEAD TAPTITE-B M2X5(3) 14
②U24206001 BIND HEAD TAPTITE-B M2.6X6 15
③U24205001 BIND HEAD TAPTITE-B M2.6X5 2
④U34308001 FLAT HEAD TAPTITE-B M3X8 6
Non-designated parts are available only as part of a designated assembly.

EXPLODED VIEW -3 FTDX10 Technical Supplement
Exploded View
CQ1135001
TOP-CASE ASSY
RA6311400
TOP CASE
RA6311100
SHIELD PLATE(FINAL)
RA0994000
PORON SHEET(151505)
RA123330A
SHEET(401302)
RA6311500
SPONGE RUBBER(SP)
RA6346100
BLIND SHEET(SP2)
RA6311000
BLIND SHEET(SP)
RA6310700
CHASSIS
REF. YAESU P/N Description Qty.
①U31306007 OVAL HEAD SCREW M3X6B 8
②U24206001 BIND HEAD TAPTITE-B M2.6X6 20
③U34308001 FLAT HEAD TAPTITE-B M3X8 4
④U9900272 PAN HEAD TAPTITE-B HM3X8(3) 4
⑤U04333007 SEMS SCREW HSM3X33B 4
⑥U24306001 BIND HEAD TAPTITE-B M3X6 2
⑦U04410002 SEMS SCREW HSM4X10NI 1
Non-designated parts are available only as part of a designated assembly.
①
②
③
④
RA602540A
PORON SHEET (10x115)
T9207338
WIRE ASSY
⑤
⑥
⑦
S5000242
FINGER GUARD 109-049E
M4090289
SPEAKER
M2090071
FAN
①
①
①
①
①
①
①
②
②
②
②
②
②
②
②
②
RA6356000
SP NET(16x85)
RA6346200
BLIND SHEET(240)
RA6260900
PORON SHEET(5X40)
③
③
③
RA6310900
SP HOLDER(76)
④
④
④
RA602540A
PORON SHEET (10x115)
⑤
⑤
⑤
⑥
P1091172B
CONNECTOR
RA6310800
DISPLAY PANEL
RA6311200
SHIELD PLATE(MAIN)
RA0994000
PORON SHEET(151505)
RA0471500
ELEC. COND TAPE(C)
②
②
②
②
②
②
②
②
②
②
RA089840A
SP NET

EXPLODED VIEW -4 FTDX10 Technical Supplement
Exploded View
FINAL-ASSY
CS2679701 DST: USA
CS2679702 DST: EU
MAIN-ASSY
CS2677704 DST: USA
CS2677705 DST: EU
DC-DC-ASSY
CS2680701
REF. YAESU P/N Description Qty.
①U24206001 BIND HEAD TAPTITE-B M2.6X6 42
②U02310001 SEMS SCREW SM3X10 4
③U24208007 BIND HEAD TAPTITE-B M2.6X8B 2
④U03106001 SEMS SCREW ASM2X6 4
⑤U31306007 OVAL HEAD SCREW M3X6B 9
⑥U20406007 BINDING HEAD SCREW M4X6B 2
Non-designated parts are available only as part of a designated assembly.
RA6336600
PORON SHEET(10X35)
RA6311300
BOTTOM CASE
R3100700B
FOOT
RA626920B
LEAF SPRING
RA6334300
ThermalConductivePad
⑤
⑥
RA6334500
ThermalConductivePad
RA0129800
LEAF SPRING
FINAL-UNIT
①①①
①①
①
①
①
①
①
①
①
①
②②
②
③
T9207925
WIRE ASSY MAIN-UNIT
T9207838
WIRE ASSY
T9207842
WIRE ASSY
Connect to J3006 on the MAIN-Unit
T9207930
WIRE ASSY
Connect to J3001 on the MAIN-Unit
Connect to J3005 on the MAIN-Unit
T9207840
WIRE ASSY
T9207491A
WIRE ASSY
Connect to J1002 on the MAIN-Unit
Connect to J1005 on the MAIN-Unit
T9207928
WIRE ASSY
Connect to J1022 on the MAIN-Unit
Connect to J1001 on the MAIN-Unit
T9207926
WIRE ASSY
Connect to J2503 on the MAIN-Unit
Connect to J3011 on the MAIN-Unit
T9207920
WIRE ASSY
RA6334400
ThermalConductivePad
RA6341400
GASKET(USB)
T9207927
WIRE ASSY
RA626910A
GROUND PLATE
RA6332000
SHIELD PLATE(DCDC)
RA6046900
BLIND SHEET (0715) ①①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
①
③RA6358300 (2 pcs)
DOUBLE FACE TAPE
L9190151 (2 pcs)
CORE
T9207939
WIRE ASSY T9207491A
WIRE ASSY
RA6353600
DOUBLE FACE TAPE
RA6235600
DOUBLE FACE TAPE
Connect to J4002 on the FINAL-Unit
④
④
④
④
RA6334400
ThermalConductivePad
V9000056
TAPE #900 12X50
RA0961700
SHIELD CASE COVER
RA1152400
SHIELD CASE COVER
Q7000958
MODULE
Connect to J6006 on the DISPLAY-Unit
T9207930
WIRE ASSY
Connect to J4019 on the FINAL-Unit
Connect to J4008 on the FINAL-Unit
T9207842
WIRE ASSY
T9207840
WIRE ASSY
Connect to J4001 on the FINAL-Unit
T9207924
WIRE ASSY
Connect to J6012 on the DISPLAY-Unit
T9207925
WIRE ASSY
Connect to J4010 on the FINAL-Unit
Connect to J4013 on the FINAL-Unit
T9207928
WIRE ASSY
Connect to J4003 on the FINAL-Unit
T9207926
WIRE ASSY
T9207929
WIRE ASSY
Connect to J4017 on the FINAL-Unit
S4000061
SNAP-IN PLA FOOT:TP-4
RA6260900
PORON SHEET(5X40)
R0145630
STAND
⑤
⑤
⑤
⑤
⑤
⑤
⑤
⑤
⑥
T9207931
WIRE ASSY
RA6310700
CHASSIS
DC-DC-UNIT
②①
BOTTOM-CASE-ASSY
CQ1136001
RA6360600
SHEEET(062202)

BLOCK DIAGRAM -1 FTDX10 Technical Supplement
Block Diagram

CONNECTION DIAGRAM -1 FTDX10 Technical Supplement
Connection Diagram

Alignment
FTDX10 Technical SupplementALIGNMENT -1
Introduction and Precautions
Realignmentmayberequiredafterthecomponents
havebeenreplaced.
WerecommendthatauthorizedYaesuTechnicians,
whoareexperiencedwiththecircuitryandfully
equippedtoalignourproducts,performaligns.
Thosewhodoundertakeanyofthefollowing
alignments are cautioned to proceed at their own
risk.Problemscausedbyunauthorizedaemptsat
realignmentarenotcoveredbythewarrantypoli-
cy.
Theneedforrealignmentshouldbedeterminedto
be absolutely necessary.
Thefollowing test equipment(andathorough fa-
miliaritywithits correctuse)isnecessary for cor-
rectrealignment. Moststepsdonot requireallof
theequipmentlisted.Theinteractionsofsomead-
justmentsmayrequire that morecomplexadjust-
mentsbeperformedinasequence.Donotaempt
toperformonlyasinglestepunlessitisclearlyiso-
latedelectricallyfromallothersteps.Havealltest
equipmentreadybeforebeginning, and follow all
ofthestepsinasectionintheordertheyarepre-
sented.
Required Test Equipment
 RFSignalGenerator
 AFSignalGenerator
 SpectrumAnalyzergoodtoatleast1GHz.
 FrequencyCounter
 SINADMeter
 RFMillivoltmeter
 ElectronicLoad
 DigitalDCVoltmeter(high-Z,1M-Ohm/V)
DC Voltmeter
DC Ammeter (30 A)
Ohmmeter
 50-OhmDummyLoad(100/200was)
 In-LineWameter(150/300was,50-Ohm)
 LinearDetector
 RFCoupler
 4-OhmAFDummyLoad(3was)
 1/4-inch3-contactPlug
Important Notice
Do not adjust the alignment menus that are not
mentioned in this manual.
Alignment Preparation & Precautions
A50-ohmRFDummy load and in-line wameter
mustbeconnectedtothe“ANT”jackinallproce-
duresthatcallfortransmission,exceptwherespec-
ified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unneededtest
equipmentbeforeproceeding.(exceptthedummy
loadandwameter).
Correctalignmentrequiresthattheambient tem-
peraturebe maintained constantbetween68°Fto
86°F(20°Cto30°C).Whenthetransceiveris
broughtintotheshopfromahotorcoldenviron-
ment,itshould be allowedtime tocometoroom
temperaturebeforealignment.Also,thetestequip-
mentmustbethoroughlywarmedupbeforebegin-
ning.
Wheneverpossible,alignmentsshouldbemade
withoscillatorshieldsandcircuitboardsrmlyaf-
xedinplace.
Note:Signal levelsindBreferredtointhisproce-
durearebasedon0dBµ=0.5µV(closedcir-
cuit).