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TEKK XT-600 PLUS (4) User Manual

Uhf two way portable radio transceiver
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XT-600PLUS(4)
Transceiver
User manual
1

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Summary of Contents for TEKK XT-600 PLUS (4)

  • Page 1 XT-600PLUS(4) Transceiver User manual...
  • Page 2 Wisetone science & technology Co., Ltd General This manual is intended for use by experienced technicians familiar with similar types of commercial grade communications equipment. It contains main required service information and data for the equipment. The following precautions are recommended for personal safety: 1、DO NOT transmit until all RF connectors are verified secure and any open connectors are properly terminated.
  • Page 3 CONTENTS General Parts Description Specification of software Circuit Description CPU pins Description Parts list 1 Adjust Description and specifications Disassembly for Repair Component plans Parts list 2 Packing list FCB Component locations Principle View Principle diagram Transceiver model and specification MODEL FREQUENCY(MHz) POWER...

  • Page 4: Parts Description

    Parts Description Antenna 1、 The helical antenna is threaded plugs for the reception and transmission signal. LED light 2、 Lights red while transmitting, green while receiving a signal. Flashes red when the battery voltage is low while transmitting. Channel selector knob 3、...
  • Page 5 Specification of the software function Turn the volume button can choice 15+1(scan) channels. 1、 Moni function. 2、 CTCSS/CDCSS program 3、 CTCSS: 50 groups 4、 CDCSS: 210 groups 5、 25KHz channel spacing 6、 Scan function, set scan channel. 7、 Power save. 8、...

  • Page 6: Circuit Description

    4 Clone function Use the clone line connect clone radio with be-cloned radio. （1） on the power of the be-cloned radio. （2）Turn se the 16 channel. （3）Cho h the MONI button after turn off the power of clone radio, then turn on the power; it （4）Pus will come into clone model.
  • Page 7 MIXER IF AMP AF AMP RF AMP FL277 T241 FL251 FL253 T251 U811 T221 D211 U411 IF MIX AF AMP ANT SW U261 LPF HPF 1ST LOCAL OSC 38.4MHz Fig. Receiver section configuration First Mixer The signal from the RF amplifier is heterodyned with the first local oscillator signal from the PLL frequency synthesizer circuit at the first mixer to create a 38.85 MHz first （T241）...
  • Page 8 F AMP U261 U811 T498 U411 I F A MP H PF AM P D ET D ET B US Y H PF H PF AM P T490 MUTE SW Fig. AF Amplifier and squelch Receiving signaling CTCSS/CDCSS 300 Hz and audio frequencies of the output signal from IF IC are cut by a low-pass filter.
  • Page 9 PLL frequency synthesizer 三、 The PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission. The frequency step of the PLL circuit is 5 or 6.25KHz. A 12.8MHz reference oscillator signal is divided at by a fixed counter to produce the 5 or 6.25KHz reference U311 frequency.

  • Page 10: Power Supply

    TX DRIVER TX AMP MIC AMP TX AMP T430,T433 D321,D322 T120 T130 U421 T140 D141 D111,D112 U811 T417 U161 MUTE DTMF Fig. 5 Transmit audio CTCSS RF amplifier The transmit signal obtained from the VCO buffer amplifier , is amplified by .
  • Page 11 CPU pins Description PIN No. PIN NAME DESCRIPTION RS-232C output Input encode Input encode Input encode Input encode Red light control Green light control TX Power control VCO Power control RX Power control MONI Button AVdd CPU input power 5V Input QT/DQT signal AF amplifier TONE...
  • Page 12 XT-600PLUS(4) Parts list Material Preci Size Description A Ref.No code B Ref.No sion R5-F0R1-00 2512 0.1R/1W R121 R886.R835.R456.R410.R436 R376,R370,R101,R103,R135 R2-J000-00 0402 R264.R566 R267,R364 R2-J2R2-00 0402 2.2R R473 R2-J100-00 0402 R440 R2-J220-00 0402 R142 R2-J330-00 0402 R313 R2-J470-00 0402 R361,R305,R132,R131 R2-J680-00 0402 R245 R584,R311,R304,R257,R136...
  • Page 13 R2-J224-00 0402 220K R561.R155 R2-J274-00 0402 270K R268 R2-J334-00 0402 330K R512.R445 R2-J474-00 0402 470K R491.R413.R421 R271 R2-J105-00 0402 R152 R2-J185-00 0402 R428.R404 R2-J475-00 0402 4.7M R492 R475 RP-0473-00 RP-1206-4 PR804.PR801 RP-0472-00 RP-1206-4 4.7K PR805 RP-0102-00 RP-1206-4 PR802 RT-0103-00 RV1208 RV422 RT-0503-00 RV1208...
  • Page 14 C2-k392-00 0402 392P C856 C2-J472-00 0402 472P C264,C595,C591,C412,C871 C202,C201,C102,C101,C301 C513.C885.C854.C435.C388 C141,C148,C256,C255,C254 C2-k103-00 0402 103P C163.C153.C105.C402 C246,C241,C231,C234,C233 C232,C221,C277,C907,C905 C2-k223-00 0402 223P C389.C426,C431 C2-k273-00 0402 273P C414.C413 C2-k333-00 0402 333P C855 C2-J473-00 0402 473P C872 C2-k563-00 0402 563P C411 C516.C514.C512..C886 C883.C864.C857.C851.C837 C2-k104-00 0402 104P C836.C833.C822.C555.C494...
  • Page 15 D0-0376-00 MA2S376 D332,D322 D0-0131-00 HVC131 D211,D112,D111,D361 D0-0114-00 KDS114 D141,D249 Q0-4008-00 PD54008L 2-5N1A T120 Q0-3078-00 2SK3078 SOT89 T130 Q0-1824-00 2SK1824 T571.T561.T551 T581 Q0-305S-00 KRA305 T455.452 T296,T481,T202,T101,T301 T483,T477,T305,T304,T273 Q0-404S-00 KRC404 T822.T821.T162.T151.T456 T263 Q0-2014-00 KTA2014 T881 Q0-4075-00 KTC4075 T417.T433.T430 Q0-4080-00 KTC4080Y T251 T361,T331,T321,T311,T140 Q0-4226-00 2SC4226 T241,T221...
  • Page 16 Adjust Description and specifications Use programmer or PC software to program XT-600PLUS(4) , or by manual program , eg . To program XT-600PLUS(4) by manual as follows: 一、Instrument:： Synthesized test instrument 1 set Scanner 1 set 3A/10V power 1 set Digital Voltmeter 1 set 3A DC Ammeter...
  • Page 17 AF:1kHz 120mV Synthetical test 1、TX center 9、FM Check frequency FILTER: Turn to manual mode error :2.2kHz-3.6kHz Sensitivity 0.3-3.4kHz and press the PTT AF:1kHz 15mV 1、TX center and with 67.0Hz 67.0Hz CTCSS, turn CTCSS to manual mode Adjust VR3,the test value of 10、...
  • Page 18 -118dBm MOD:1KHz DEV:±3kHz FILTER: 2、RX low 0.3-3.4kHz Turn to manual mode 3、RX high Turn to manual mode Synthetical test Adjust the 1、RX center Level 9 Level 9 Turn to manual mode Adjust to close the squelch. output: squelch. -117dBm 6、Squelch RV266 Synthetical test...

  • Page 19: Disassembly For Repair

    Disassembly for Repair Put out the battery Make sure close the transceiver, than press down battery locking tap, and then pull down the battery pack. Put out the cassette(aluminum hull and PCB board) Put down the 2 crews which in the transceiver bottom. 1、...
  • Page 20 Put down the PTT button Pull out the PTT button from the front cover. Put on the PTT button Put the double glue on the front cover. Then push the PTT button into the hole which in the front cover. Put on the battery Put the base of the battery to the radio aluminum hull rabbet and push, then press the top of the battery to the radio until you heart a ”click”...

  • Page 21: Component Plans

    Component plans...

  • Page 22: Fcc Compliance

    FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 90 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

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