Yaesu FT-23R MKII Manual

« Н И '
l i l l ll «
FT-23R
TECHNICAL SUPPLEMENT
YAESU MUSEN CO., LTD.
C.P.O. BOX 1500, TOKYO, JAPAN
YAESU U.S.A.
17210 E war » R ., Cerrito», California 90701, U.S.A.
YAESU EUROPE B.V.
Snipweg 3. 1118 A A Schiphol, The Netherlan »

E atly an late m o els сап be listin guishe by the location
o f the clon e sw itch , as shown below.
CLONE SWITCH
OfSJ — —OFF
BUHON COVERS
CLONE SWITCH
Early Model Late Model

CNTL UNIT
//PD4066BG (01008)
/ PD4001BG (01009)
OUT
PST523G (01007)
C O LLECTO R
2SA1162GR (SG)
2SC2712GR (LG)
FA1A4M (L33)
(01002.1012)
01003,10044
1005,1006 I
1010
(01011.1013)
ANODE
CATH OD E
Mrtrlted Surface 1SS181 (A3) .
(01001.1002.1008)
CATHO D E
ANO D E
ISS 184 (83) : (01007)
Marked Surface SLM-23VMW (01006)
(LED)
(obverse view of -microprocessor" side)
(reverse view of -display" side)

n~~nOQgSl
C N TL UNIT
(reverse view of -microprocessor" side)
1 -9
(obverse view of -display" side)

T.CALL/SOL OFF
EXT MIC
EAR
RESISTOR VALLES ARE IN n. 1/lOW:
CARACITOR VALUES ARE IN f . SOwv
UN-ESS OTHERVISE NOTED.
IT ) CAP AC HORS ARE TANT AL UM. 16*v
CNTL UNIT

ALIGNMENT
The FT-23R has been carefu lly alłgne by
highly skille technicians at ihe factory, an
ls esigne so that no Further allgn m ent
shoul ever be require . However, in the
unlikely event of a component failure, re-
alignm ent may be necessary. A li component
replacement an service shoul be perform e
only by an authorize Yaesu représentative, or
the warranty policy may be voi e .
The following test equipment is require for
alignment:
RF Signal Generator:
calibrate output level at 150 MHz
Deviation Meter (linear etector)
Oscilloscope
AF M illivoltm eter
SIN AD Meter
Inline Wattmeter: 150 MHz
Regulate DC Power Supply:
a justable from 4 to I7V, 2A
50-ohm Non-reactive Dummy Loa : 10W at 150 MHz
Frequency Counter: 0.2ppm accuracy at 150 MHz
AF Signal Generator
DC Voltmeter: high impé ance
CA SE D ISASSEM BLY
1.
2.
3.
4.
Make sure the transceiver is o ff. Rem ove
the har or soft case, if use , an remove
the battery pack.
Remove the four screws affixing the battery
spring plate on the bottom o f the transcei
ver, an carefully remove the plate.
Rem ove the four screws affixin g the top
panel, an carefully remove the panel.
Remove the two screws affixin g the front
an rear halves o f the case, an gently
separate the halves, using care not to
stress the interconnecting wires.
&
BOARD LAYOUT
FRONTEND UNIT IF UNIT
METER UNIT
AKT SW UNIT
MOTWER BOARD
VCO UNIT
MC AMP UNIT
PCL UNIT
UNIT
1 "Il

I. PLL & TRANSMITTER
Set up the test equlpment as shown in the
iagram below for transmuter alignment. A 
just the supply voltage to 12.0V for all steps
except Transmitter Output Power alignment (В).
Л. PLL VCV (Varactor Control Voltage)
(1) Connect the DC Voltmeter between C416 on
the PLL Unit an chassis groun .
(2) Whlle transmitting on 144.000 MHz a just
transformer T501 on the VCO Unit for 1.35
:0.05 VDC.
(3) While receiving on 144.000 MHz a just
trim m er TC501 on the V C O Unit for 1.1
гО.05 VDC.
(4) Retune the transceiver an confirm the
high-en VCV for the transceiver version
being aligne , as follows:
Version Frequency Tx VCV Kx VCV
A. C. K 148.000 1.8 V 1.6 V
B. D 146.000 1.7 V 1.5 V
PLL & TRANSMITTER ALIGNMENT SETUP
Sampling
B. Transmitter Output Power
(1) Tune the transceiver to ban center (145
or 146 M H z), an set the LOW switch to
the un epresse position.
(2) Increase the supply voltage to 12.5V.
(3) A just TC I0I on the Mother Boar for peak
output power on the W attm eter (at least
5W with less than 1.5A supply current).
(4) Press the LOW switch on the top panel,
an a just VR105 on the Mother Boar for
0.5 watts output.
(5) Return the supply voltage to 12.0V.
C. PLL Reference Frequency
With the transceiver tune to ban center (145
or 146 MHz), a just TC40I on the PLL Unit, if
necessary, so that the isplay frequency mat-
ches the frequency counter when transmitting.
D. Mo ulation Level
( I ) With the transceiver tune to ban center
(145 or 146 MHz), a just the AF generator
for 25mV output ai 1 kHz to the MIC Jack.
(2) A just VRI04 on the Mother Boar for ±4.5
kHz éviation on the éviation meter.
PLL & TRANSMITTER ALIGNMENT POINTS
1 -12

S-meter Sensitiviiy
Set up the test equipment as shown above for
receiver allgnment.
A. Sensitivlty
(1) With the transceiver an RF signal gen
erator both tune to ban center (145 or
146 MHz), set the generator for ±3.5 kHz
éviation of I kHz tone mo ulation, an
set the output level for 40 Bu at the
antenna jack.
(2) Preset VR103 on the Mother Boar fully
clockwise.
(3) A just TI01 through T104 on the Mother
Boar for maximum S-m eter In ication,
re ucing the generator level If more than
four bargraph segments turn on.
After step (3 ), generator level shoul be 0.2
uV or less for !2 B SINAD. Perform the follow-
ing a just ment next.
II. RECEIVER
(1) With the transceiver an RF signal gen
erator set up as in step ( 1 ) of the above
Sensitivity a justment proce ure, set the
signal generator for 20 Bu output.
(2) A just VR103 on the Mother Boar so that
all bargraph segments are just turne on.
(3) Re uce the generator output so that only
two bargraph segments are on, an conflrm
that the generator output level is now 5
Bu or less.
B.
RECEIVER ALIGNMENT SETUP
RECEIVER ALIGNMENT POINTS
1 -13

PARTS LIST
MAIN CHASSIS
Symbol No. Part No. Name 6 Description
CONNECTOR
J01 P1090541 BNC-RM ANT CERAM IC FILTER
CF101 H3900280 LF-B12
M ISCELLAN EOUS
R3116390 D1AL Knob RESISTORS
R3116620 VOL.SQL Knobs RI 12 J24205479 RMC 1/10T4R7J 1/10W 4.70
K3508300 PTT Button Cover R113 J24205100 " " 100J " 10O
R3508310 UNLOCK Lever R102 J24205220 " " 220J " 220
RÛ117370 Coil Sprine R106,109 J24205221 и « 221J " 220Ü
R0507950B Batterv Spring Plate R 110 J24205331 " " 331J " 3300
R35036S0A Top Pnnel Gasket R ill J24205102 " " 102J " IkO
R3S07960 Jack Seal Gasket RI 14 J24205103 " « 103J " lOkO
R107.118A.P J24205223 H ” 223J " 22kO
R116 J00215223 Carbon film 1/8W 22kO
R101 J24205333 RMC 1/10T333J l/10W33kO
R 108,115 J24205473 " " 473J " 47kO
R103-105.117 J24205104 H " 104J " lOOkO
MOTHER BOARD
Symbol No. Part No Name & Description
F2838104A Printe Circuit Boar
C028384AA PCB with Components POTENTIOMETERS
VR101 J60800128 K091K0004-20KB 20kO В
VR102 J60800129 K0911100D-20KA 20kO А
VR103-105 J51776473 RH0411CS4J 47kß В
CAPA CI TO RS
C104-106 K22170203 Chip Ceramic 50WV 2pF CH
(C2012CH1H020CFA)
C107 K22170204 n rt N 3pF "
(C2012CH1H030CFA)
CI 01,108 K22170206 " " " 5pF "
(C2012CH1H050CFA)
C130.133 K22170209 II n и gpp и
(C2012CH1H080DFA)
C143 K22170211 " " " lOpF "
(C2012CH1H100DFA)
IC
Q101 G 1090558 LA4145 C103 K22170221 •» " " 27pF "
(C2012CH1H270JFA)
C ll l , 122,125-127
131.135-141 K22170805 " " " O.OOlpF В
(C2012B1H102MFA)
PW R -M O D U LE C102,132,134 K22170817 ........................ O.OlpF и
(C2012BIH1Ö3MFA)
Q107 G1090732 M57796MA C128.142 K22171008 " " " 0.047pF F
(C2012F1H473ZFA)
0109,110,112,115
119,120,129 K22143904 " H 25WV O.lpF D
(C3216D1E104MFA)
TRANSISTORS
0102 G3111627G 2SA1162GRTE8SR C121 K78130001 Tantalum 20WV 0.47pF
(F951D474MRA AF102)
0103 G3327127G 2SC2712GRTE85R
Q104 G3070001 FA1A4M CI 13,118,123 K40129052 Electrolytic 16WV 10pF
(RC3-16V100M)
0105 G3333567 2SC3356-T2B
0106 G3329547 2SC2954-T2B CI 14,124 K40129038 " " 16WV lOOpF
(RC2-16V101M)
C116.117 K40089020 " " 6.3WV lOOpF
(RC3-6V101M)
DIODE
D101 G2070009 1SS184TE85R Si
TRIMM ER CAPAC1TOR
TC101 K91000149 VCT31E161A 20pF
CRYSTAL FILTER
XF101 Hl 102114 10Ш5ВМ 10.7 MHz
1-14

TRANSFORMERS If UNIT
T101 L0021416 145MHz S m bol No. Part No. Nam e & Description
T102-104 L00214 1 8 иF2838102 Printe Circuit Boar
C028382AA PCB with Components
INDUCTORS
LlO l.l02 LI 190275 LAL02NAR22M 0.22pH IC
LI 03 LI 020671 Q302 G1090698 TK10420M
CONNECTORS TRANSISTOR
J101 P0090599 1L-Y-5P-S15T2-EF Q301 G3326207B 2SC2620QBTR
J102 P0090601 IL-Y-14P-S15T2-EF
J103 P0090598 IL-Y-4P-S15T2-EF
PlOKwlth wire) T9205436 DIODES
D301.302 G2070007 1SS226TE85L Si
FRONT END UNIT CRYSTAL
S mbol No Part No. Name & Description X301 H0102773 UM-1 10.245MHz
F2838111A Printc Circuit Boar
C02838BAA PCB with Components
CERAMIC DISCRIMINATOR
CD301 H7900260 D455C
FETS
Q201.202 G3803027Y 2SK302YTE85R
RESISTORS
R305 J24205101 RMC 1/10T101J 1/10W100Q
DIODES R304 J20205471 " " 471J " 470Q
D201-203 G2090248 1T32 Varactor R311 J24205152 " " 152 J " 1.5kO
R301.307.308 J2420S222 " " 222J " 2.2kß
R314 J24205392 " " 392J " 3.9kO
R315 J24205472 " и 472J " 4.7kO
RESISTORS R3Î3 J24205682 " " 682J " 6.8kQ
R201 J24205560 RMC 1/10T 560J 1/10W 560 R309.316 J24205103 " " 103J " lOkü
R206.209,2io J242C5101 " " 101J и 100Q R303.310 J24205473 " ” 473J •' 47kO
R207 J24205471 " " 471J " 470Q R306 J24205823 " и 823J " 82kQ
R202-204 J24205104 и " 104J " lOOkß R302 J24205224 " " 224J " 220kfl
R205 J24205474 *' " 474J " 470кП R312 J24205474 " " 474J " 470kQ
CAPAO TORS CAPACITORS
C202,203,205,207 K22170221 Chip Ccramic 50WV 27pF CH
(C2012CH1H270JFA) C303 K22170213 Chip Ccramic 50WV 12pF CH
(C2012CHIH120JFA)
0201,210 K22170805 " " " O.OOlpF В
(C2012B1H102MFA) 0304,310 K22170229 " • " 56pF "
(C2012CH1H560JFA)
0206,209 K22170817 " " " O.OlpF "
(C2012B1H103MFA) C305 K22170237 " и " 120pF "
(C2012CH1H121JFA)
C208 K22171008 " " " 0.047pF F
(C2012F1H473ZFA) C309 K22170239 " " " 150pF "
(C2Q12CH1H151 JFA)
0204 K22141904 " " 25WV O.lpF D
(C3216D1E104MFA) C315 K22170243 " n n 220pF " (C2012CH1H221 JFA)
0302,306,314 K22170805 " " " O.OOlpF В
(C2012B1H102MFA)
0301,312,317 K22170817 " " O.OlpF "
(C2012B1H103MFA)
INDUCTORS
L201 LI 190292 LAL02NA5R6K 5.6pH 0307,308,313 K22141904 " " 25V O.lpF D
(C3216D1E104MFA)
L202 L1190289 LAL02NA3R3K З.ЗрН 0316,318 K78120013 Chip Tantalum 10WV lpF
(F951C105MR AAF1Q2)
1 - 15

C311 K78080004 Chip Tanlalum 6.3W 15pF
(F950J156MVCAF1O2) TRIMMER CAPACITOR
TC401 K91000154 ECR-KN020E1IX 20pF
INOUCTOR INDUCTORS
L301 Ы 190344 LAL02KR100K lOuH L401 Ы 190311 LAL02NA221 К 220uH
PLL UNIT
Symbol No Part No Name & Description VCO UNIT
F2838108A Printe Circuit Boar Symbol No Part No Name 5 Description
C028388AA PCB with Components F2838106 Printe Circuit Boar
Mo el A1.A2.D.K2 5kHz steps VCO-LC
С028388ЛВ •V n t? F2838110 M M и
Mo el F 10kHz steps VCO-OSC
С028388ЛС •1 « HC028386AF PCB with Components
Mo el B,C2 12.5kHz steps
FET
ICs£501 G3802387S 2SK238-K17
Q401 G1090725 MC12017P
0402 G1090582 JLC1007 P
TRANSISTOR
Q502 G3327597C 2SC2759-T2B U23
DIODE
D401 G2090118 1SS97 Schottkv
DIODES
D501 G2Û9Û297 1SS110 Si
CRYSTAL D502.503 G2090271 1T33 Varactor
X401** H0102771 UM-1 10.240MHz
X401* H0102772 UM-1 12.800MHz
RESISTORS
R504 J24205470 RMC 1/10T 470J 1/10W 47Q
RESISTORS R505 J24205101 " " 101J " îooo
R408 .124205000 RMC 1/lOT 000J 1/lOW OO R501 J24205682 " ” 682J " 6.8 kl.'
R402.403 J24205220 " " 220J " 220 R506 J24205683 " M 683J и 68kD
R404.405.407 J24205222 " " 222J " 2.2kQ R503 J24205224 ” " 224J " 220kÛ
R « 6 '" ' ' J24205472 " n 472J " 4.7kO R502 J24205225 " " 225J " 2.2MQ
R401.4Q6* J24205103 " » 103J " lOkO
R406* J24205153 " n 153J " 15kfl
CAPAC1TORS
C508 K22170201 Chip Ceramic 50WV 0.5pF CH
(C2012CH1HOR5CFA)
CAPACITORS
C401 K22170206 Chip Ceramic 50WV 5pF CH
(C2012CH1H050CFA) C503 K22170211 " " " 10pF "
(C2012CH1H100DFA)
C411,412 K22170227 " " " 47pFи
(C2012CH1H470JFA) C506.507 K22170311 n n n " UJ
(C2012UJ1H100DFA)
C408-410.419 K22170235 * " " lOOpF "
(C2012CH1H101JFA) C501 K22170215 " " " 15pF CH
(C2012CH1H150JFA)
C402,403,405,407
413-415 K22170805 * • 0.001 >j F В
(C2012B1H102MFA) C502,505,510 K22170805 " " * O.OOlpF B
(C2012B1H102MFA)
C416.417 K22141904 " " 25WV O.lpF D
(C3216D1E104MFA) C509 K78080002 Chip Tantalum 6.3WV 4.7pF
(F950J475MSAAF1O2)
C404.406.420 K78080002 Chip Tantalum 6.3WV 4.7pP
(F950J475MSAAF1Q2) C504 K78080003 " " " lOpF
(F950J106MTAAF1Q2)
C418 K78100003 " " 10WV 6.8pF
(F951A685MTAAF1Q2)
• Mo el A1,A2,D,E2
■ Mo el B,C2
1 -16

TRIMMER CAPACITOR C602 K78100003 Chip Tantalum 10WV 6.8pF
(F951A685MTAAF1Q2)
TC501 K91000152 ECR-JA040G12X C607 K78080003 " " 6.3WV 10pF
(F950J106MTAAF1Q2)
IN O U aO RS
L501-503 L I190283 LAL02NA1 ROM lpH
L504 L1190342 LAL02KRR22M 0.22pH
MIC AM P UNIT
S mbol No Part No Nam e & Description
TRANSFORMER F2838101 Printe Circuit Boar
TS01 L0021684A R12-E991X 150MHz C028381AA PCB with Componnents
Mo el A1.A2.F
С028381ЛВ И И И
.Mo el B.C2.D.E2
TEST POINTS
TP Q5000082 IPS-1091-01
IC
ROI 16640 SHIELD CASE Q701 G1090726 M5224FP
R0117100 SHIELD TOP
RESISTORS
REG UNIT R705 J24205332 RMC l/10T332Jl/10W3.3kQ
S mbol No Part No. Name & Description R710 J24205562 " " 562J " 5.6kO
F2838109A Printe Circuit Boar R701*,702e,709
711-713 J24205103 " " 103J " lOkO
С028389ЛА PCB with Components R704\715 J24205223 " " 223J " 22kO
R708 J24205333 " " 333J " 33kQ
R707 J24205563 " M 563J " 56kO
IC R716 J24205104 " " 104J " lOOkO
Q604 G1090736 LVC550C-2 R703.714 J2420522S n " 225J " 2.2MO
R706 J24205335 " ” 335J " 3.3 MO
TRANSISTORS
Q601 G3207997L 2SB799ML CAPACITORS
Q602,603,608 G3327127G 2SC2712GRTE85R C705,708,710,711
713,714 K22170805 C h ip C e ra m ic50WV0 001 pF В
(C2012B1H102MFA)
Q6Q5-607 G3111627G 2SA1162GRTE85R C703- K22170809 * " " 0.0022pF "
(C2012B1H220MFA)
C702*,703*,709 K22170817 " " " O.OlpF В
(C2012B1H103MFA)
DIODES
D601.604 G2090027 1SS53 Si C706 K22171008 " " 0.047pF "
(C2012B1H473ZFA)
D602 G2090183 HZ9A2L Zener
D603 G2070009 1SS184TE85R Si C701*,704*,707
712 K22141904 " " " O.lpF D
(C3216D1E104MFA)
RESISTORS
R602 J01245829 Carbon film 1/4W 8.20 TJ
R601 J24205101 RMC 1/10T101J 1/10W 1000
R608 J24205222 n " 222J " 2.2kO S METER UNIT
R6G6.607.61 J24205472 " " 472J " 4.7kO S mbol No Part No Nam e & Description
R60S.611 J24205103 " " 103J " lOkO F2838103 Printe Circuit Boar
R603 J24205223 •' " 223J " 22kO С028383ЛА PCB with Components
R604.609.610 J24205104 " " 104J " lOOkO
TRANSISTORS
CAPAOTO RS Q801.802 G3327127G 2SC2712GRTE85R
C601,603,604
606,608-613 K22170805 C hip Ce ram ic 50WV O.OOlpF В (2012B1H102MFA)
C605 K78120002 Chip Tantalum 16WV 2.2pF
(F951C22SMSAAF1Q2)
• Mo el Al,A2,F
• Mo el B,C2,D,E2
1-17

Early Mo el FT-23R
CONTENTS
MOTHERBOARD................................................................................................... 1-1
FRONTEND UNIT...........................................................................................1-4
PLLUNIT................................................................................................. 1-5
VCOUNIT................................................................................................. 1-5
REGUNIT................................................................................................. 1-6
MIC AMP UNIT.................................................................................................................. 1-6
S METER UNIT..................................................................................................................1-7
ANTSWUNIT.................................................................................................................. 1-7
CNTLUNIT ..................................................................................................................1-8
AUGNMENT .................................................................................................................. 1-11
PARTS LIST .................................................................................................................. 1-14
BLOCK DIAGRAM................................................................................................ 1-20

DIODES INDUCTORS
D801.802 G2090029 1N60 Ge L90I U 190344 LA1.02KR100K IOjiH
L902, L904 L0021683
L903 L0021682
RESISTORS
R802 J24205102 RMC 1/10T102J lkQ
R804 JO 1245102 Carbon film 1/4W lkïî TER M IN A LPO ST S
R801.803 J2420S104 RMC 1/10T104J lOOkQ TP901 Q5000016 TP-E/MS-60124
CAPACITORS
C801 K22170801 Chip Ceram ic 50WV 470pF B
(C2012B1H471MFA) C N R UNIT
C802.803 K22170817 н и " O.OlpF "
(C2012B1H103MFA) Symbol No Part No. Name & Description F2838105A Printe Circuit Boar
C028385AA PCB with Components
Mo el F
C028385AB Ił n «
Mo el A l, A2
C028385AC M И N
Mo el B. C2, D, E2
w/o B A TI001
AN T SW UNIT
Symbol No Port No Name & Description
F2838107A Printe Circuit Boar
C028387AA PCB with Components
IC*
Q1001 G1090741 HD613901A51
TRANSISTORS Q1007 G1090752 PST523G
Q901.905 G3207997L 2SB799ML Q1008 G 1090602 цРО4066ВС
Q902-904 G3327127G 2SC2712GRTE85R Q1009 G1090601 UP04001BG
DIODES TRANSISTORS
D901.902 G2090027 1SS53 Si” Q 1002,1012 G3111627G 2SA1162GRTE85R
D903 G2070007 1SS226TE85R " Q1Ü03-1006.1010 G3327127G 2SC2712GRTE85R
Q1011,1013 G3070001 FA1A4M
RESISTORS
R905 J24205221 RMC 1/10T221J 1/10W 2200 DIODES
R903 J24205471 " " 471J " 470Q D1001,1002.1008 G2070001 1SS181TE85R Si
R9D1,904.906 J24205222 " H 222J " 2.2kO 01003,1005 G2090334 HZ4ALL Zener
R902 .124205473 " " 473J " 47kO D1004 G2090118 1SS97 Schottky
D1006 G2070028 SLM-23VMW T-97 LEO
01007 G2070009 1SS184TE85R Si
CAPACITORS
C916 K22170207 Chip Ceramic 50WV 6pF CH
(C2012CH1H060DFA) LIQUID CRYSTAL DISPLAY
C914 K22170209 " » " 8pP "
(C2012CH1H080DFA) DS1001 G6090060 LR-541C
C917 K22170217 " " " 18pF "
(C2012CH1H180JFA)
C913,915 K22170223 " " " 33pF "
(C2012CH1H330JFA) CERAM IC RESONATOR X1001 H790U270 CSB800K
C901,903,905
907-912 K22170805 " " " O.OOlpF B
(C2012B1H102MFA)
C904 К 10179033 Elcctrolytic " 0.47pF
(RC3-50VR47M)
C902.906 K401290S2 " 16WV lOpF
(RC3-16V100M)
1 -18

.RESISTORS _____________________
SPEAKER
JŁlftU ______________
J24205221 RMC 1/10T221J 1/1QW 220ß SP1001 M4090063 T036S13Y2611
R1027 ______________ J24205331 И " 331J " 3300
I M ______________ _____ ". 471J ___ 4700
M S ______________ J242Q.5561 "
_____ " 561J " 5600
I M ______________ jJ2A2jQHQ2— " " 102J " Ikß MIC
■ŁlDlSi 1036 ________
-lZi2fiiLLŁ2L_ " И 152J " 1.5кО MIC1001 M3290008 EM-78CYE
Ü1C3S ______________
-Д24205222 " н 222J " 2.2кО
R1004M012.1020
Л 2 8 _______________
J24205472 " п 472J " 4.7кЯ
R1011, 1015,1018
1021-1024,1033
1034.1039
_________
J24205103 " " 103J " ЮкО SWITCHES
S1001.1002 N5090018 KHH15951 SQL, OFF*,
BURST*. PTT
Ä im ______________ J2iŁQ.S183.., " " 183J " 18кО S1003 N6090063 SSSS22050A
R1003V1008 " " 223J " 22кО S1004 N4090088 SPJ622N09 HI/LO
R1010.1025.1031 J24205473 •' " 473J " 47кП S1005 N0190139 SRBMIL066 DIAL
R1001,1002,1005
1013.1014,1026
-183Д
______________
J24205104 " " 104.) " 100kÜ
R1006.1032 _________
J24205224 " " 224J " 220кО CONNECTOR5
R1007 321205394 " 394J " 390кО J1001 P1090369 HSJ0838-01-010 MIC
-RIM2 ______________
J24205105 " " 105J " 1МП J1002 P1090370 HSJ0836-01-010 EAR
-ROILNIIOMŁIEB________________ LITHIUM BATTERY
шши _____________ J5177,lia3 ■RVG4F031Q3-TG ЮкО RAT1001 09000366 CR2025
RUBBER CONDUCTOR
CAPACITORS _________________
S2000026 24.3xl.8xl SS
Cl 004,1005 K22170235 ChipCcromic 50WV lOOpFCH
(C2012CH1H101MFA)
СЮ11-1016.1019
1022,1024-1027
_Ш 5
______________
K22170805 И " O.OOlpF В
(C2012B1H102MFA)
C1028 K101761Q2 Ceramic ise " O.OOlpF "
(DD104B102K5D)______________ ACCESSORIES* |
S mbol No. Part No Name fi Description
C1001,1002 K22170809 Chip Ceramic " 0.0Û22pF "
(C2Q12B1H222MFA1
__________
ANTENNA
03000049 YHA-16
C1018 K22170817 " " " O.OlpF "
(C2012B1H1Q3MP A) __________
01003,1007-1010
-JLQ23 ______________
K22141904 '* « 2SWV O.lpF D
(C3216D1E104MFA) S6000098 HAND STRAP
C1005 K78080002 H * 6.3WV 4.7pF
(F950J475MSAAF1Q2)
C1017 K78100003 n " 10WV 6.8pF
(F951A685MTAAF102) BATTERY PACK*
01020,1029 K78080003 " " 6.3WV lOpF
fF950Jl 06MTAAF1O2) D3000493 PNB-10
Cl 021 K40089010 Electrolytic " 220pF
(RC2-6V221M) VINYL SOFT CASE*
D3000477 CSC-23 u/w FNB-10
D3000504 CSC-25 u/w FNB-10. FTT-4
CQNNECTORS
Р1001» T9205433 • Optional same mo els
P1001* -I92Q.5.434 _
P1002* T92Q5432
P1002* I9205435A ,
BUZZER
ja z u u u _____________
M4290001 EFBRE-25D02
• Mo el Al,A2,F
• Mo el B,C2,D,E2
1-19

- 2 0
MOTHER OARD UNIT F283810A
RX 5V .
RX 5V
Г
FRONTEND UNIT F2838111 f î10.7MHz
Q201
|2 SK302Y
RF AMP
D1-D3
IT32
BPF TU№
\BPF1
0202
2SK302Y
Is t MIX
T102-T10A
- » 2 Q105 ÏSC3356
BUFF
D101
1SS18A
T /R SW
f 2
\BPF
XF01
IF UNIT F2838102
•f :Ю .2 4 5 Ж г
X301 Г
^3
0301
2SC2620B
IF AMP
ose SQL SW NOISE
AMP
rQ302 TK10A20M
2nd MIX LIM AMP DISC
f l
rS MTR AMP I
1
I10801 0802
_____ L
12SC2712GR 2SC2712GR 1
js METER UNIT F283810 3 J
f : A55kHz
LF-B12
BPF
TO CNTL UNIT
Q101
LAA1A5
AF AMP SPKR
j~MIC AMP u n it !
! F2838101
CF101 tQ701
M1522AFP +
t
l_S l+ETER COMPARATOR J
I
VCO UNIT м:тхТ F2838106
f2 ;Rx F2838110
Q10A
FA1AAM
MOO SW
LIM AM P/LPF
Q701 1QA01
MOO SW 1
гMC12017
PRESCALER
|m ic am3 u n it I
F2838101
|PLL UNIT
j F2838108
I
I
! Г f3
4Gb
XA01
D501
1SS110
SHIFT
Q501
2SK238
OSC/MOO
05 02 !i
Q106 Q107
BUFF I2SC2954
DRIVE M57796MA
P WR AbP
FIN AL TX 5V
TX 5V_
ANTENNA SW UNlTl
F2838107
- 4 -
ANT
R
D901
D902
T /R SW —LPF \ _
Q90A Q901
Q905
Q906 2SC2712GR
FIN AL REO V CNTL
CNTL Vcc
HI/LOW
J 0
S100A
VCV
'H
% DET P DIV
QA02 /
JLC1007P lL
OSC/DIV LATCH «PLL DATA
CNTL UNIT F2838105 I
LCD KEY
BOARD
Q1001
CPU
HD613901A51
D /A
A f l L
01010
2SC2712GR
MIC AMP
- - 1-
4 ~ C
MIC
IN
AF OUT H
TONE SQL UNIT
F2839101
(OPTION)
FTS-12
TONE OUT
DTMF UNIT
F2856101
(OPTION)
FTT-A
DTMF OUT
5V CPU 5V
SAVE
SOL SW D603 D60A 06 05 Q60A
1SS18A.1SS53 23A1162GR LVC550C
SW 5V SW / REG
TX
RX 5V
TX 5V
06 06
06 07
06 0 8
T /R SW
06 03 0601
2SC2712GR 0602
AF+B SW AF+B REG
REG UNIT F2838109
+8
■ AF + B
.J
A1.C1.G1 A2.C2.E2 B.D
f 1AA.-1A.8MHz 1AO-160MHz 1AA-1A6MHZ
f2 133.3-137.ЭМИг 1 2 9 .3 -1A9.3MHZ 133.Э -135.3MHz
A1.A2.D.E1.E2 B.C1.C2
f3 10.2A0MHZ 12.8MHz
RECEIVE
TRANSMIT
COMMON/CNTL FT-23R
BLOCK DIAGRAM

Late Mo el FT-23R
CONTENTS
MOTHERBOARD...........................................................................................................*2-1
IF U N I T ......................................................................................................................2-4
PLL U N I T ........................................................................................................................2-5
VCO U N IT ........................................................................................................................2-6
REG U N IT ........................................................................................................................2-7
MIC AMP UNIT..................................................................................................... 2-8
ANTSW UNIT................................................................................................... 2-8
CNTLUNIT ................................................................................................... 2-9
DUMMY UNIT........................................................................................................ 2-12
ALIG NM ENT.....................................................................................................2-13
BLOCK DIAGAM.....................................................................................................2-16
PARTS L I S T ....................................................................................................................2-17
EXPLODEDVIEW..................................................................................................2-32

MOTHER BOARD
(obverse view of -mixed-component" side)
o u t p u t
M57796MA (02009)
CO LL EC TO R
Marked Surface
2SC3120 (HB :(02002)
2SC3356 (R22) : (02003)
FA1A4M (L33) : (02005)
2SC2712GR (LG) : (02007)
2SA1162GR (SG): (02010)
BASE
COLLECTOR
EMITTER
2SK302Y (TY) : (02001) 2SC2954 (OK) : 2004)
2-1

MOTHER BOARD
(obverse view of "chip-only" side)
A N O D E 1/C A T H O D E 2
1SS226 (03) : ID2001.D2007)
C A T H O D E
1SS184 (B3) : (D2005)
NJM386D <02008)
2-2

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MOTHER BOARD