Yaesu FT-227RB Скачать руководство пользователя страница 1 | Manualshive

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Содержание FT-227RB

Страница 1: ...INSTRUCTION MANUAL FT 227RB YAESU MUSEN CO LTD TOKYO JAPAN...

Страница 2: ...ABLE OF CONTENTS Page INTRODUCTION 1 SPECIFICATIONS 2 CONTROLS AND SWITCHES 3 REAR APRON 5 INSTALLATION 7 OPERATION 9 BLOCK DIAGRAM 11 THEORY OF OPERATION 12 MAINTENANCE AND ALIGNMENT 19 PARTS LIST 26...

Страница 3: ...eld when the power switch is turned off via the backup circuitry For repeater operation 600 kHz split is provided and auxiliary splits may be programmed using the memory system Tone burst generation i...

Страница 4: ...er Split 600 kHz or any frequency in 5 kHz increments Power Requirement RECEIVER 13 8 Volts DC 10 Current Consumption 0 5 Amps Receive 2 5 Amps Transmit Metering Illuminated front panel meter indicate...

Страница 5: ...s M l and M2 SIMP can be used for simplex oper ation Positions Ml M3 can be used for 600 kHz split for repeater operation M4 is used for pro gramming an auxiliary split of up to 4 MHz Refer to the sec...

Страница 6: ...R indicator The lamp lights up when in the transmit mode Figure 1 Microphone Connections CABINET BOTTOM 1 BURST When this switch is in the ON position a short duration audio tone of 1800 Hz will be su...

Страница 7: ...disabled when a plug is inserted 5 POWER receptacle A two pin connector is used for connection to 13 8 Volt DC negative ground power source vehicle battery or AC power supply ACCESSORIES The followin...

Страница 8: ...K 1i RED RUBBER TUBE POWER PLUS FUSE HOLDER FUSE SOLDER 3A vcca BLACK Cr 0 RED 3 A Figure 2 POWER CABLE CONNECTIONS PIN No I 2 MIC IN I 3 PTT JUMPER 4 SP 5 I3 8V 4 Figure 3 ACC TONE IN PLUG CONNECTION...

Страница 9: ...ons we recom mend the use of type RG 17A U air dielectric heliax cable or aluminum jacketed foamflex coax Beware of bargain coax as the shield coverage may be very poor and this can seriously degrade...

Страница 10: ...CIRCUITRY INCORPORATED HOWEVER THE TRANSCEIVER WILL NOT OPERATE UNDER THESE CONDITIONS 5 Connect the power cable to the POWER receptacle on the rear panel of the transceiver 6 Connect the 50 ohm anten...

Страница 11: ...ch to MAN Now pressing the UP switch on the microphone for an instant will shift the operating frequency up 10 kHz Pressing the DN switch will likewise lower the operating fre quency 10 kHz Now press...

Страница 12: ...he MR switch pushed the 600 kHz split will be applied to the memorized frequency When operating in the repeater mode the repeater shift may be made 600 kHz by pressing the TX button Be careful not to...

Страница 13: ...FT 227RB MEMORIZER BLOCK DIAGRAM...

Страница 14: ...circuits consisting of T404 T407 to a MOSFET amplifier Q405 3 SK51 03 T404 T407 are tuned to the transmitting frequency by varactor diodes D403 D406 whose capacitances are varied in accordance with th...

Страница 15: ...gnal is rectified by D103 and D104 1S188FM for S meter indication VR101 is used to set the meter sensitivity When no carrier is present in the 455 kHz IF the high frequency noise at the discriminator...

Страница 16: ...ual When the VCO is locked the constant voltage at pin 4 of Q309 is applied to Q316 MPSA13 caus ing it to conduct in turn Q315 2SC372Y cuts off The H voltage at the collector of Q315 causes Q205 2SC37...

Страница 17: ...dio signal The frequency of this tone can be set to any frequency between 70 Hz and 250 Hz The tone signal is generated by Q502 NE567 and its frequency is set by R516 VR502 and C516 The level of the t...

Страница 18: ...PLL CONTROL UNIT PB 1893...

Страница 19: ...ndamental 30 pF 25 2 2 mW 2nd Local X101 HC 18 U 10 245 Fundamental 30 pF 25 2 2 mW Carrier X401 HC 18 U 10 700 Fundamental 30 pF 20 2 2 mW X301 44 100 X 302 43 900 PLL Local X 303 HC 18 U 44 300 3rd...

Страница 20: ...0 0 0 0 0 1 0 0 1 0 0 4 30 4 300 1 130 0 0 0 0 1 1 0 0 1 0 0 4 40 4 400 1 140 0 0 0 0 0 0 1 0 1 0 0 4 50 4 500 1 150 0 0 0 0 1 0 1 0 1 0 0 4 60 4 600 1 160 0 0 0 0 0 1 1 0 1 0 0 4 70 4 700 1 170 0 0...

Страница 21: ...CEIVER 1 Do not exceed 14 Volts DC at the POWER receptacle When operating mobile check the battery voltage under the load transmitter keyed in FM mode with the engine running fast enough so the ammete...

Страница 22: ...tween 6 and 8 relative power output Check the receiver sensitivity as follows a Connect an AC VTVM to the SP receptacle and set the SQUELCH control fully counter clockwise b Connect the RF output of...

Страница 23: ...the PO meter reading becomes 4 4 Deviation a Connect YP 150 to the antenna connector the output of an audio oscillator between pin 6 hot and 5 ground of microphone receptacle and a deviation meter as...

Страница 24: ...tone squelch Check to see that the front panel SQL control causes the squelch to open when the knob is turned approxi mately to the 9 to 10 o clock position PLL Circuit a Set the channel frequency to...

Страница 25: ...ion and parts replacement This unit is highly sophisticated and any attempt to service it without the proper knowledge is discouraged TONE SQUELCH UNIT OPTION The optional tone squelch unit has been p...

Страница 26: ...Q712 Q710 6711 TP1 Q206 L203 T 20 1 Q 204 Q205 Q102 Q209 Q 210 L104 T 101 X101 XF101 Q105 VR202 Q 2 0 3 Q103 Q 104 Q202 CF101 102 Q201 Q216 VR201 VR205 VR203 L101 Q 11 7 RL101 Q101 Q112 Q111 Q115 Q 1...

Страница 27: ...T405 D405 T406 D406 T407 Q405 T408 c o cf CJ j J X PLL UNIT O 0 U F Cl to Cl CD O C 0 0 0 C 0 Cl Cl Cl Cl aa X 1 0 a a a a I Cra CD N Cl M C 0 0 0 0 0 0 cl XXX X X X TC306 TC304 TC302 TC303 TC305 TC30...

Страница 28: ......

Страница 29: ...you fill out the card completely and mail it at once in order to qualify for warranty service Warranty service is to be performed by the dealer from whom the equip ment was purchased Do not return the...

Страница 30: ...YAESU 8004 K...

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