Yaesu FTV-901R Instruction Manual
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Yaesu FTV-901R Instruction Manual

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INSTRUCTION
MANUAL
FTV-901R
YAESU MUSEN CO
LTD.
/
TOKYO
JAPAN.

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Summary of Contents for Yaesu FTV-901R

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

  • Page 2: Front Panel Controls

    T ABLE OF CON T EN T S (Page) G E N E RA L · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · SPECI F IC A T I O N S ·...
  • Page 3 FTV-901 R VHF/UHF TRANSVERTER GENERAL The FTV-90 1R i s an all-n ew tran sv ert er for t he FT- 90 1DM an d FT- lO lZD seri es, capabl e o f op er ation on t he 50, 1 44, an d 4 3 0 MHz ban ds. The ba sic unit comes equipp ed wit h 1 44 MHz capability, an d the 5 0 an d 43 0 MHz ban d mo dules may be a dded a s option s.

  • Page 4: Specifications

    SPECIFICATIONS Frequency ran ge: 5 0 -5 4 MHz (option) 144-1 4 8 MHz 43 0 -440 MHz (option) Mode: S S B, CW, A M, FM Input impedance: 5 0 -75 ohms IF outpu t frequency: 2 8- 3 0 MHz RF powe r outpu t: 1 0 watts@ 5 0% duty cycle Drive requireme nts:...
  • Page 5 ACCESSORIES: Ca ble A 1 pc . RCA pl ug 1 pc . Ca ble B 1 pc. Spare fuse 1 pc . Ca ble C 1 pc. CABLE A CABLE B CABLE C PIN No. PIN· No. COLOR HEATER! HEATER2 BLUE HEATER!"...

  • Page 6: Front Panel Controls And Switches

    FRONT PANEL CONTROLS AND SWITCHES ( 1 ) ( 4 ) RF GAIN METER This control sets the receiver RF gain level for 5 0 Depending on the position of the M ETER s witch, the meter di splays the drive level or the relative and 1 44 MHz operation .

  • Page 7: Rear Panel

    REAR PANEL ( 1 ) 4 30 MHz UNIT and ANTENNA JACK (7) ACC When the optional 430 MHz unit i s in stalled, the Thi s jack should be connected to the FT-901 DM 430 MHz antenna should be connected here. An ACC jack, u sing the supplied Cable C.

  • Page 8: Installation

    INSTALLATION Open the packing carton carefully, and save the ANTENNA CON SID ERA TIO NS box and packing material f o r po ssible u se at a later The antenna in stallation i s of critical i mportance in date .
  • Page 9 RECEIVER ANTENNA JACK FT-901/FT-IOIZ FTV- 90 1R CABLE A EXTERNAL RECEIVER...

  • Page 11: Repeater Operation

    For example, with the FT-9 01 DM bandswitch set shortened drastically if these input l evels are to 1 OA, and the FTV-9 01 R bandswitch set to exceeded. 1 44-1 46, operation will take place on 1 44. 0- (1 0) For 6 and 2 meters, rotation of the FTV- 1 44.5 M Hz.

  • Page 12: In Stallation Of Optional Modules

    ( see your Yaesu be preci sely linear, a s might be in ferred from the dealer).
  • Page 13 CRYSTAL DATA FTV-901R EFF E C TIV E DR IV E RAN G E LOA D C FUNC TION HOL DER MO D E R E S ISTANCE LEV EL (MHz) 2 m W H C-1 8/U 19 p F X 201 2 2.0...

  • Page 14: Circuit Description

    CIRCUIT DESCRIPTION The circuit description to follow should help you understand the operation o f the FTV-901 R trans­ verte r. Follow the block dia grams while readin g this discussion, and refer to the schematic da gram fo r specific details. UNIT UNIT OISOI 3SK59Y...
  • Page 16 50 MHz UNIT The 50 MH z signal from the antenna is fe d thro ugh Q 101 where it i s mixe d with the local (MC1496G), a lo w-pa ss filter, con si sting of C323 , C 324 , L312, signal delivere d from Q208.
  • Page 17 - SI - "' "' )< ><. ?> � !Z "' <::> l> <:. "' "" i<.."" -----, � � � � ;;- "' I ,:,.. � :::,. . ®®®©@G "' ��"'�ft\ " ,,.. "' lo "" "' '<: @@®@®@ ��>!��...
  • Page 19 - LI - "' "' ­ >< >< "" � <::: ..� @e®e®ee01 "'I "' - "" "' "' ,.,, "" f") ("') ::,.. ::r- .::r- :: :,. . � ;::,-. C"> f") ®@®@®0®@1 � lfD2 tu°' ������tlt�, I "" :;,: "' �:z:...
  • Page 20 430 MHz UNIT The incoming signal is fed through RL1301 to the Q1402 Qi403 and final (2SC1426), (2SC1426), two stage RF amplifier, consisting of Qi201 and amplifier Qi3oi The output signal (UP-07BL). Qi 202 and then passed through a from Qi 3oi is fed through a stripline filter, via (2SC2369), selective filter to the doubly balanced diode mixer, RL i 301, to the ANT jack.
  • Page 21 - 6 I - "' � "' � "' "' "" "" @ @ @ 8 0 -- - ---- - - --, �� �;:; th .::r- ::.-. .:::,. . 3-- tn � """ � : ®©@e@ I :;;: "'" I ®@©@Q1 �...

  • Page 22: Alc Circuit

    Qi 7 02 This voltage is used for the (TA 7089M). heater switch is ON, and the FTV-901R power LE D UNIT, pilot lamps, and the three converter switch is OFF, RLi is set to OFF, and the 10 m units.

  • Page 23: Maintenance And Alignment

    (0.7 volts nom.). generator good to MHz, and a frequency Set the FTV-901R meter switch to INPUT. counter good to 250 MHz are required. A dummy Adjust VR 1 801 for a reading of . 2 on the load and wattmeter good to MHz are also meter.
  • Page 24 Do not exceed this level. Connect the DC voltmeter to pin 1 4 of the edge connector , and set the FTV-901R TUN E ( 8) Rotate VR 202 slowly clockwise , u n ti l an control to the center position (1 2 o ' cloc k).
  • Page 25 ( 15) Set the TUN E control to the center o f its (1 2) Remove t he du mmy load fro m the antenna jack . While trans mitting, confirm that the P O range. Adjust potentiometers maximum power output while tr ans mitting indication is .
  • Page 26 (5) Conne ct a signal generator to the 1 44 MH z clockwise, until the powe r output jus t begins ANT ja ck, and s et t he FTV-901R BAN D to fall o ff. Do not go past the th reshold poin t.
  • Page 27 ( 1 2) Connect the RF probe of the VTVM to the (1 4) Set the TUNE control to the cent er of its L OCAL OUT terminal . Set the BAN D switch range . Adjust potentiomet e rs to 1 44-1 46 MHz, then switch the repeater maximum power output while tran smitting switch to UP and DOWN .
  • Page 28 430 MHz UNIT Connect the RF probe of the VTVM to the cathode of Di 502 . Peak TC1501 -TC1 5 04 for a 1 44 Please remove the MH z units , if maximum indication on the VTVM while installed , to allo w access to test points on the transmitting .
  • Page 29 "' "' "' cS cS � a: : I- I- () > O T C 1 4 o s Q 1 4 0 2 Q 1 2 02 T C 1 2 o s T C 1 4 0 2 Q 1 2 0 3 D 1 s o2 T C 1 4 0 1...
  • Page 30 - 2 8 -...
  • Page 31 FTV - 9 0 1 R PA RT S L I ST MAIN CHASS I S M U L I JAC K Sy m bol N o . Parts N o . Desc r i p t i o n MJ l - 3 6 8 220003 1 2 1 S-22B- 1 05 A...
  • Page 32 C273, 275 3 1 8 29 1 2 1 Ceramic Disc 5 0WV 1 20 pF R E S I STO R 1 /4S 10 .n C274 3 1 82 9 24 1 " " " " 240 pF 4 0 1 4 3 1 00 Carbon Film R226 "...
  • Page 33 L3 1 1 5 5 003 3 7 7 #2205 84 T R A N S I ST O R Q 3 0 1 2 2 3 2 1 6 6 0 Transistor 2SC 2 1 6 6 " Q 3 0 2 223 1 9454 2SC 1 94 5 D T R I M M E R CAPAC I T O R...
  • Page 34 CAPAC I T O R D I O D E 1 S S 5 3 C6 1 4 3 1 829059 Ceramic Disc 5 0WV 0 . 5 pF D6 01 ,606,6 0 7 , 2 1 09 0 1 1 3 Silicon 3 1 820020 "...
  • Page 35 50WV C 7 1 0, 7 1 2 3 1 8 290 1 0 Ceramic Disc 1 pF T R A N S F O R M E R " " " # 220 1 05 3 1 829020 " 2 pF T604 5 4 1 4 09 1 0...
  • Page 36 Mylar 5 0WV C 1 2 3 1 3 6 8 254 7 3 0 . 0 4 7 µF C 1 23 0 3 4 2 20 1 06 Electrolytic 1 6WV 1 0 µF Descr i p t i o n * * * * * M A I N C H ASS I S * * * * * Cl l O l - 1 1 0 8, 3 2 8 2 1 1 0 2...
  • Page 37 CAPAC I T O R Ceramic HDC6 0E l 0 2M 0 . 0 0 1 µF C l 40 1 - 1 4 1 0, 3 0 8 2 5 1 0 2 1 4 1 2 Electrolytic 1 6WV 1 0 µF C l 4 1 1 34220 1 06...
  • Page 38 C R YST A L 6 '/ . 000 MHz X 1 6 0 1 7 1 800 146 HC-1 8/U " 6 7 . 3 3 3 MHz X 1 6 0 2 7 1 800 1 4 7 "...
  • Page 39 POT E N T I O M E T E R 49906202 EVL-SOAAOOB 23 2 knB VR l 7 0 1 CAPAC I T O R T R A N S I ST O R Ceramic Disc 5 0WV 0.001 µF C 1 7 0 7 3 0 8 20 1 02 Q l 7 0 8...
  • Page 40 4 0 1 4 3 2 74 Carbon Film 270 kn. R1 804 R E S ISTO R R 1 906 4 0 1 4 3 220 Carbon Film 1 /4 2 2 n. POTE N T I O M E T E R EVL-SOAAOOB 1 4 1 0 k n.
  • Page 41 SW U N IT Sy mbol N o . Parts N o . Description PB- 1 9 2 8 6049280 Printed Circuit Board 0 1 9280AZ PCB with Components SW I T C H S 2 1 0 1 64000 1 0 1 SLE-6 2 3 0 1 S 2 1 02, 2 1 04 64000 1 0 3...

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