background image

430 MHz  UNIT 

The  incoming  signal  is  fed  through  RL1301  to  the 

two  stage  RF  amplifier,  consisting  of  Qi201  and 

Qi 202 

(2SC2369), 

and  then  passed  through  a 

selective  filter  to the doubly balanced diode mixer, 

Diso3 - D1so6 

(1SS43) 

where  the  incoming  signal 

is  mixed  with  a 

402-410 

MHz  local  signal, 

producing  a 

28-30 

MHz  output  signal  which  is 

fed to the 

10 

M  OUTPUT jack. 

The  local  signal  is  generated  at 

67-68 

MHz  by 

oscillator  Qi6oi 

(2SC784R), 

then  multiplied  by 

Qi602  and  Q15oi 

(2SC1424). 

The  local  signal  at 

402-410 

MHz  is  then  passed  through  a  selective 

filter  to  buffer  Qi so2 

(2SC1424 

),  for  delivery  to 

the mixer. 

For  transmission,  the  output  from  the  transceiver 
is  delivered  to  the  diode  ring  mixer,  where  it  is 

heterodyned  with  the  local  oscillator  signal, 

resulting  in  a  signal of 

430-440 

MHz . The  signal is 

then  fed  through  a  selective  filter,  which 
effectively  eliminates  spurious  responses.  The 
signal  is  then  amplified  by  Q1203 

(2SC1424 

), fed 

through  another  selective  filter,  then  amplified  by 
the amplifier chain, consisting of Qi4oi 

(2SC1424), 

Q1402 

(2SC1426), 

Qi403 

(2SC1426), 

and  final 

amplifier  Qi3oi 

(UP-07BL). 

The  output  signal 

from  Qi 3oi  is  fed  through  a  stripline  filter,  via 

RLi 301, to the ANT jack. 

A  portion  of  the output  from Li 306 is detected by 

Di302 

(1S188FM) 

and  fed  to  the  base  of  Qi2os 

(2SC1815Y), 

for  control  of  the  bias  applied  to 

Q13oi.  Qi204 

(2SC1815Y) 

acts  as  a switch for the 

automatic  final  protection  circuit.  A  further 
portion  of  the  output signal  is  rectified  by  Di 303 

(1S188FM) 

and  fed  to  the  meter,  providing 

indication of relative power output. 

The  supply  voltage  is  regulated  at 

volts  by 

Qi6o3 

(78L08). 

70Cm  UNIT(PB-1929,1930,1931,1932,1933,1934  1935) 

01204 

2s�� 

ALC AMP 0---

- - - -

- - - - -

-

-

- - - -

- ___ 

_. 

IOm 

INPUT 

01401 

01402 

014 

01301 

012os 

2s;,:;24 

2s;��6 

2�C�6 

u:.-�:L 

2:c68�Yp 

,-

01203 

AMP 

LPF 

IOm 

6.-J 

OUTPUT 

Ot'5al-0505 

ISS43x4 

-

D8DM 

01202 

2SC2369 

RF 

AMP 

0120! 

2SC2369 

RF 

AMP 

__ 

01502 

2SCl424 

8UFF 

01501 

01602 

2SCl424 

2SCl424 

x

x3 

430-430MHz 

432-434MHz 

434-436MHz 

436-438MHz 

438-440MHz 

01601 

2SC784R 

67.000MHz 

67.333MHz 

67.666MHz 

68.00IOMl1z 

68.333MHz 

_______ _ __ _ _____ ___ __ _______ 

- 18  -

Summary of Contents for FTV-901R

Page 1: ...INSTRUCTION MANUAL FTV 901R YAESU MUSEN CO LTD TOKYO JAPAN...

Page 2: ...TABLE OF CONTENTS Page GENERAL 1 SPECIFICATIONS 2 FRONT PANEL CONTROLS 4 REAR PANEL 5 INSTALLATION 6 OPERATION 8 CIRCUIT DESCRIPTION 12 MAINTENANCE ALIGNMENT 21 PARTS LIST _ 2 9 1 i...

Page 3: ...er in addition to t he FT 90 1DM The operator can transmit on 1 45 MHz while listening on 29 MHz or 435 MHz or transmit on 435 MHz while list ening on 1 45 MHz The FTV 90 1R also includes repeater spl...

Page 4: ...tenna input Size 21 0 W x 157 H x 35 2 D mm Weight 10 kg SEMICONDUCTOR FET 3SK5 l 03 6 3 SK5 9Y Silicon Transistors 2SC73 0 2 2 SC 2 05 3 2 2SC784R 6 2 SC 21 66 2SC1424 5 2 SC 2 3 69 2 2SC1426 2 2 SC...

Page 5: ...pc 1 pc 1 pc RCA plug Spare fuse PIN No I 2 3 4 5 6 7 fi UND LL 1 pc 1 pc CABLE A CABLE B CABLE C COLOR HEATER WHITE HEATER2 BLUE 1 No C I HEATER __J HEATER2 TX GND RED RX GND GREEN EARTH BLACK Cable...

Page 6: ...l receiver This is normally used only for satellite operation ALC This switch selects the ALC threshold level For 4 RF GAIN This control sets the receiver RF gain level for 5 0 and 1 44 MHz operation...

Page 7: ...e and protection from dangerous electrical shock a good earth ground should be connected here using a short heavy braided cable 6 RF IN This jack should be connected to the FT 901 DM RF OUT j ack usin...

Page 8: ...r to the drawings for details o f correct interconnections between the FTV 901R and the FT 901DM FT 1 01 ZD and an external receiver such as the FR 1OlD AC 234V AC AC AC 220V 200V 117V AC llOV ANTENNA...

Page 9: ...RECEIVER ANTENNA JACK FTV 901R FT 901 FT IOIZ CABLE A EXTERNAL RECEIVER v D 7...

Page 10: ...t o i 0 0 I E 0 FREQUENCY COVERAGE CHART HF TRANSCEIVEF lOA lOB lOC lOD BANDSWITCH 28 0 28 5 28 5 29 0 29 0 29 5 29 5 3 0 0 50 52 50 0 50 5 50 5 51 0 51 0 51 5 51 5 52 0 52 54 52 0 52 5 52 5 53 0 53 0...

Page 11: ...of the drive levels beyond the point stipulated in steps 6 through 8 will not increase the power output component life may however be shortened drastically if these input levels are exceeded 1 0 For...

Page 12: ...changed to 35 l 2 MHz We regret this inconvenience to you but the FT 1 01 and FR 1 01 series wa s produced long before OSCAR 8 was con ceived There should be no problem at all when using the FT 901 s...

Page 13: ...6 39 1 3 3 X1601 HC 1 8 U 67 000 23 5 pF 40 S1 0 5 mW X1602 67 333 430 X1603 67 666 MHz X1604 6 8 000 X160S 6 8 333 BAND 50MHz 144MHz nFUNDAMENTAL RANGE 50 52 52 54 144 146 146 148 THIRD OVERTONE LOCA...

Page 14: ...rter Follow the block diagrams while reading this discussion and refer to the schematic dagram for specific details TRX IOmBA 1 r UNIT R 1 I i F 1 JJ I I T 10m INPUT ALC NIP lMtT 144MHz _ T ANT R 6 IO...

Page 15: ...J r _ JAv r _J S 104 ALC NPU1 R3 2K 52102 I 0 II l M f 11 s2103 a T _ 210J EXTA cv I l 1 ti 6 111 161 Sf ti L o Sl e 6 lo SI i vP t q IC 11 Ii D7 9 11 12 DOWN ISIS55 ri il t f f f f f t fl IQ Q q q Q...

Page 16: ...5 4 MHz signal is then passed through a selective bandpass fil ter which effectively eliminates spurious signals Th e signal is then amplified by the amplifier chain consisting of Q102 3SK51 Q103 2SC2...

Page 17: ...fil6IG 00214iWf No2 N 4701 I r C30 I 22Jl 6Y H 1 f 7 T c t T 0 1 01 ID U N ij Jl fTl l z u ocl I iI I I I I I I I 8 f tJ1 0 0 I o I o I 31 n ID OI Cl I l U t m I f 0 C88 0 01 lrjl I M _ I 0 N JI 7 11...

Page 18: ...fed to Q611 2SC1815Y which acts as a switch for the AFP circuit which will protect Q101 from damage caused by high SWR A further portion of the output is detected by 0702 1S1555 and fed to the meter...

Page 19: ...I t I a 1 R35 s0f57 tu IK I lfD2 100 t 1 _ T I I 0 0 Tl l I VJ U1 0 0 U1 l I VJ U1 r 1 I RL01 I I t I I I Oi l t N Vi C b QJ C44 Do l 14 15553 _ A I I I 0 0 N VJ CD 0 I 0 N VJ CD U1 I tf f 9 R21 o i5...

Page 20: ...ter then amplified by the amplifier chain consisting of Qi4oi 2SC1424 Q1402 2SC1426 Qi403 2SC1426 and final amplifier Qi3oi UP 07BL The output signal from Qi3oi is fed through a stripline filter via R...

Page 21: ...c21 i I frli J IOO J 7 r Rl 1 Z711 L HI r 0 0 j CIS 0 0 J n L I j T a I 0 0 c I 0 ID r m 0 0 mo J ID i l I 01 z c z i DO J St68Fl t H C29 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I...

Page 22: ...o relay driver Qi7 03 2SC1815Y turning it on With the conduction of Qi703 RLi is REG UNIT l PB 1945 F 1102 MULTl JACK activated connecting the 10 meter output to the various units of the transverter a...

Page 23: ...frequency counter good to 250 MHz are required A dummy load and wattmeter good to 450 MHz are also required REG UNIT PB 1975 Connect a DC voltmeter to pin 11 of multijack MJl 2 or 3 Adjust VR1701 for...

Page 24: ...Peak VR 1902T206 T207 T20s and T209 for a maximum reading on the HF transceiver S meter Reduce the signal generator output if necessary to secure easy viewing of the peak point Switch to the 52 54 MH...

Page 25: ...ITCH DOW N DOW N A TX OUT Q3 0 1 TC3 0 2 TC3 o s TC3 0 1 L2 o s Q 2 0 4 Q2 1 0 TC2 0 1 Q2 0 3 T2 0 s VR 2 0 1 T2 0 4 T2 0 3 TC2 01 52 54 DOWN TC2 0 6 50 52 DOWN ADJUST TC2 0 TC2 0 7 FREQUENCY 2 1 0M...

Page 26: ...Peak TC1001 TC1004 T6o4 TC6o6 for a maximum reading on the H F transceiver S meter Re duce the signal generator output i f neces sary to secure easy viewing o f the peak point Switch to the 1 40 148...

Page 27: ...1 TX OUT TC 6o5 T602 TC 6os Q 6 03 T6 os TC6o6 TC601 TC6os TC6o9 TC6 1 0 TC6 1 1 FREQUENCY 1 16 6M H z 1 1 5 4M H z 1 18 6M H z 1 1 7 4M H z X 6o6 1 46 1 48DOWN J8j JJ J X 605 1 44 1 46DOWN JE I Xso...

Page 28: ...439 MHz Recheck the results to ensure maximum response across the entire operating range 3 Transmitter section 1 Connect the dummy load wattmeter to the 430 MHz ANT jack Set VR1201 and VR1202 fully c...

Page 29: ...1 TC 16os TC 1604 TC 16os TC 1601 TC 1602 x l601 x l602 x l603 x l604 X 16os 0 0 N N cS cS I I N M 0 0 M M J M 0 N U M 0 a O N N c 0 M M I cl I M u I 27 0 0 U M M u u I I N a I Q1202 TC 12os Q 1203 D...

Page 30: ...28...

Page 31: ...n 1 kn 6 8 kn 10 kn 12 kn 68 kn 1 Mn MJ l 3 Pl C l O l 1 06 1 08 1 1 4 M U LTI JAC K 68220003 121S 22B 105A PLUG 6 8 1 20006 5065 1 1 2 with wire MA I N CHASS I S 2401 1 7 3 2 8 2 1 1 0 2 Ceramic Fee...

Page 32: ...1 04 1 4 TJ 100 k n R21 8 40143224 1 4S VJ 220 k n R236 40143225 2 2 M n I N D UCTOR L21 1 2 1 2 53020038 Micro Inductor FL 4H 0 6 8 H L214 53020005 3 3 H POT E N T I O M E T E R L207 209 53020006 6 8...

Page 33: ...pF C501 506 32821 102 Ceramic Feed Thru ECK Y l H 102WE C3 16 335 3 1 829010 1 pF 5 08 509 C3 1 0 3 1 5 3 1 829050 5 pF 5 1 1 5 1 3 C302 31 829200 20 pF 5 15 C301 3 1 7 3 1 829330 33 pF C5 1 7 368252...

Page 34: ...1 40143560 56 n 6 25 628 630 625 633 6 3 3 635 643 R604 608 6 1 1 40143 101 10o n 65 7 662 663 614 65 1 655 667 669 6 72 659 673 678 6 79 R629 40143221 220 n C605 606 636 30820103 0 0 1 F R647 L6 13...

Page 35: ...604 1 9270 Printed Circuit Board R E C E PTAC L E 0 1 9270AZ PCB with Components 1701 68000003 S0 239 9 1 100008 Wrapping Terminal C POWER MOD U L E Q70 1 78000002 VP 20BL R ESONATO R BOA R D PB 1 800...

Page 36: ...201 1221 30820 1 02 0 001 F 1222 1 229 Cl 204 1 2 1 1 3 0825 102 HDC60E 102M 0 001 F 1 2 1 3 1 2 1 5 1228 C l 214 1226 30325 103 Chip 25 V 0 01 F C1231 36825473 Mylar 50WV 0 047 F C1230 34220106 Elect...

Page 37: ...istor 2SC1424 Q1401 223 14240 Transistor 2SC1424 Q1402 1403 22314260 2SC 1426 D IO D E 01503 1506 2 1 090 1 5 2 Schottky Barrier 1 SS43 D I O D E 0 1 5 0 7 1 5 1 0 21090 1 1 3 Silicon 1 SS 5 3 0 1 4 0...

Page 38: ...3273 VJ 27 kn 1 509 TC1 505 1 5 08 3900001 0 ECV l ZW 1 0 x 5 3 N 10 pF CAPAC ITOR C1625 3 1 829059 Ceramic Disc 50WV SL 0 5 pF I N D UCTO R C163 1 3 1 8200 1 0 CH 1 pF L1505 1 5 1 3 5 5003 393 AT0706...

Page 39: ...apping Terminal C POW E R SUPPLY BOA R D PB 1 945 604 1 9450 Printed Circuit Board 01 9450AZ PCB with Components ALC AMP UNIT Symbol N o Parts No Description IC T RANS ISTOR PB 1 946 604 1 9460 Printe...

Page 40: ...rcuit Board 0 19470AZ PCB with Components TRANSISTOR Q1901 1 902 223 1 8154 D I O D E 01901 1 9 1 5 2 1 0 1 5 5 5 0 Silicon D1916 1 9 1 7 2 1 0900 1 1 0 001 F 0 01 F 47 H 220535 220 1 80 2SC 1 815Y 1S...

Page 41: ...6049280 Printed Circuit Board 01 9280AZ PCB with Components SW ITCH 64000 1 0 1 SLE 62301 64000 103 SLE 6 225 1 64000108 SLE 6425 1 ACCESSO R I ES Parts No Description Connection Cable A B c 6702000 1...

Page 42: ......

Reviews: