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FP520 Service Manual 

 

Page 54 of 64 

 

Summary of Contents for FP520

Page 1: ... 键入文档副标题 gh 选取日期 在此处键入文档的摘要 摘要通常是对文档内容的简短总结 在此处键入文档的摘要 摘要 通常是对文档内容的简短总结 ...

Page 2: ...mer 16 4 2 Channel Scan 16 4 3 Kill and Activation 16 4 4 Emergency 16 4 5 Parameter Settings 17 Chapter 5 Assembly and Disassembly 18 5 1 Installing Removing the Battery 18 5 2 Installing Removing the Antenna see Fig 20 19 5 3 Installing Removing the Belt Clip see Fig 21 19 5 4 Installing the Earphone see Fig 22 19 5 5 Separating the Front Cover from the Chassis see Fig 23 20 5 6 Separating the P...

Page 3: ...pendix 5 Accessory List 42 Figure 1 FP520 01 Mainboard Schematic Diagram 136 174MHz 43 Figure 2 FP520 01Top Board Position Mark Diagram 136 174MHz 51 Figure 3 FP520 01Bottom Board Position Mark Diagram 136 174MHz 52 Figure 4 FP520 02 Mainboard Schematic Diagram 400 470MHz 53 Figure 5 FP520 02 Top Board Position Mark Diagram 400 470MHz 61 Figure 6 FP520 02 Bottom Board Position Mark Diagram 400 470...

Page 4: ...n does no harm to you always keep the radio in a vertical position to the ground and make sure that the microphone is 2 5cms from your mouth while using Electromagnetic Interference In order to avoid electromagnetic interference please turn off the radio in the place where there is a warning e g hospital health care center airport and etc Explosive Atmosphere It s prohibited to use radios in the f...

Page 5: ... Antenna 5 LED Indicator The LED indicator lights up red when transmitting and lights up green when receiving In the condition of low battery the LED indicator flashes red 6 Channel Knob Rotate to select channel 1 16 7 Emergency Button 8 On Off Volume Control Knob Rotate clockwise to turn on the radio and counter clockwise until a click is heard to turn off When the radio is on rotate to adjust th...

Page 6: ... and switch to squelch mode to cancel the CTCSS CDCSS feature Press the key again to return to the original status Emergency Alarm On Enable the emergency alarm feature to seek help Emergency Alarm Off Disable the emergency alarm feature Squelch On Off Enable the squelch feature to receive the weak signal on the analog channel Squelch Level Adjustment Adjust the signal strengthness the radio needs...

Page 7: ...1 65MHz The second intermediate frequency is 450 kHz The first local oscillation is generated by frequency synthesizer and the second local oscillation is generated by the quadruple frequency of 12 8MHz The transmitting signal is generated by frequency synthesizer The reference frequency of frequency synthesizer is generated by TCXO 3 3 Principle of Receiver RX ANT SW BPF 1st local osc BPF MCF IF ...

Page 8: ...quency IF amplifier Q701 then sent to IF processing IC IC700 GT3136 IF IC consists of the second frequency mixer IF amplifier amplitude limiter frequency detector noise amplifier audio low pass filter The 12 8MHz signal from X300 being amplified by Q300 and its peripheral circuit becomes the second local oscillation signal 51 2MHz The second local oscillation signal 51 2MHz mixes with the first in...

Page 9: ...F AMP LPF Q302 RX VCO PLL DATA Q303 BUFF AMP 12 8MHz TCXO X300 IC300 PLL IC Q307 TX VCO Q305 Q306 SW Q304 RF AMP MCU Fig 3 4 Diagram of Frequency Synthesizer This radio applies PLL frequency synthesizer The frequency synthesizer consists of reference oscillator voltage controlled oscillator VCO programmable frequency divider phase comparator and low pass filter Q307 D305 D306 D307 D308 and other r...

Page 10: ...ve signal in analog state Receiving Audio Signal Processing The audio signal demodulated from IC700 is sent to U1 SCT3252 for processing after finishing A D switch by U6 After the audio encoding decoding communication protocol processing and DSP the audio signal is sent to U6 for D A switch and it is then output to the U800 TDA2822 audio power amplifier for amplification so as to sound the speaker...

Page 11: ...DCS Signal Encoding and Decoding The CTCSS DCS signal generated by MCU is sent separately to VCO and TCXO for modulation The CTCSS DCS signal from the receiver is sent to MCU for decoding The MCU identifies whether the CTCSS DCS signal of the radio is the same as the receiving signal so as to turn on the speaker CTCSS CTCSS continuous tone control squelch system a squelch control system modulated ...

Page 12: ...mposed of RC for eliminating the frequency higher than 300Hz VCO modulates the high frequency of DCS signal and TCXO modulates the low frequency of DCS signal CTCSS DCS signal from the receiver is sent to MCU for decoding MCU identifies whether the receiving signal has the same DCS code as the radio so as to turn on the speaker Chart 3 2 DCS Coding Chart 023 114 174 315 445 631 025 115 205 331 464...

Page 13: ...hannel switch control pin input 22 S_CS I data input pin connects 3252 23 S_SO I data input pin connects 3252 24 NC O NC 25 S_SCK O data input pin connects 3252 26 PC TV O tuned voltage output pin 27 S_SI I 3M 28 3M O 3M 29 TXD O TXD1 output 30 RXD I RXD1 input 31 C_CLK O JTAG test point 32 C_BUSY O JTAG test point 33 NC NC 34 NC NC 35 AFCO_1 O RX control output pin 36 AFCO_2 O RX control output p...

Page 14: ...nects 3252 65 HPI_DATA2 I O HPI Data Bus connects 3252 66 HPI_DATA3 I O HPI Data Bus connects 3252 67 HPI_DATA4 I O HPI Data Bus connects 3252 68 HPI_DATA5 I O HPI Data Bus connects 3252 69 HPI_DATA6 I O HPI Data Bus connects 3252 70 HPI_DATA7 I O HPI Data Bus connects 3252 71 NC NC 72 NC NC 73 SI D7 O LCD control pin 74 SCL D6 O LCD control pin 75 AO O LCD control pin 76 RST O LCD control pin 77 ...

Page 15: ...l oscillation the second intermediate frequency amplification amplitude limiting demodulation noise amplification IC204 NJM2902 demodulation signal amplification filter IC2 M30620 MCU IC200 AT24C512C E2 PROM stores channel frequency data function setting parameter modulating status parameter U800 TDA2822 receiver audio power amplification Q302 2SK508NV receiver VCO oscillator pipe Q304 2SC5108 VCO...

Page 16: ...t IC100 XC6204B502MR adjustable 5T stable voltage output IC102 XC6228D122VR adjustable 1 8V voltage output IC101 XC6204B332MR adjustable 3V voltage output Chart 3 5 Diode Function Description Item Item no Function Description D309 DA2S10100L losing lock detection diode D310 DA2S10100L VCO power filter accelerating diode D304 1SV278 transmitter VCO modulation diode D305 D306 D307 D308 HVC376 transm...

Page 17: ...n shortcut key to stop the scanning 4 2 2 Scan Reply Channel When the radio is scanning press the PTT button to transmit and make a conversation on a preset channel and the channel is preprogrammed by the local dealer 4 3 Kill and Activation If the dealer preprograms this feature the radio can receive and decode other radio s signals of kill and activation before responding accordingly After being...

Page 18: ...but the parameter of the digital feature operational frequency channel QT DQT and auto scan feature may be reset according to different requirements of the customers Hence Kirisun designed a Chinese English FP520 programming software with friendly interface easy operation and clear visual display to complete the parameter settings for FP520 The procedure of setting the parameter using a computer A...

Page 19: ...ert the battery into the aluminum shell in the direction as shows Press the battery bottom as shows to completely bounce the latch and the battery is attached until the battery is hooked as shows see Fig 18 Fig 18 Removing the Battery Make sure the radio is off when removing the battery To remove the battery please push the battery latch as shows to bounce the bottom of the battery as shows and ta...

Page 20: ...counterclockwise Fig 20 5 3 Installing Removing the Belt Clip see Fig 21 When installing align the screw holes of the belt clip with the corresponding ones of the radio back shell and use two 2 5x8 0 machine screws to fasten Loosen the two 2 5x8 0 machine screws to detach the belt clip Fig 21 5 4 Installing the Earphone see Fig 22 When the earphone is needed open the earphone cover on the upper ri...

Page 21: ...he separation is done Fig 23 5 6 Separating the PCB Board from the Chassis See Fig 24 1 Remove the potentiometer waterproof pad on top 2 Remove the earphone waterproof plug 3 Remove the screws on the PCB mainboard 4 Remove the two screws on the side PTT PCB 5 Use an electric soldering iron to cut off the antenna terminal and the PCB board is removed PTT PCB is connected with the PCB mainboard To a...

Page 22: ...tional 2 2KΩ 2V with 80mm red black wire 4 7MHR 1727 09A W3 microphone cover 1 Silica gel hardness 40 orange 5 7MHP 7208 06A W0 earphone cover plug 1 ABS PC black texturing 6 7GCB 070001 microphone waterproof cloth 1 waterproof cloth diameterφ7mm thickness 0 1mm 7 7MHP 7208 07A W0 earphone cover 1 TPU black 8 7GCB 360001 W0 speaker waterproof net 1 Black φ36 9 7PLJ 4083 E01A LOGO sticker 1 T 0 3mm...

Page 23: ...rmally conductive silica gel gasket 1 silica gel black 3 6 9mm 25 7SMF 020037M SZCT N M2 0 3 7 cross countersunk head machine screw 2 fixes PTT PCB 26 7MHR 7208 01A W0 radio big waterproof rubber ring 1 silica gel black polishing 27 7MHR 4083 01A W0 pedestal waterproof pad silica gel black 60 degree hardness 28 7MHP 7208 03A W0 main unit top cover 1 ABS PC black texture 29 7MJS 7013 01B N KBJ 09 b...

Page 24: ...t The frequency for the five digital keys is as follows Model Digital key 1 Digital key 2 Digital key 3 Digital key 4 Digital key 5 FP520 VHF 136 05MHz 145 55MHz 155 05MHz 164 55MHz 173 95MHz FP520 UHF 400 05MHz 415 05MHz 435 05MHz 455 05MH 469 975MHz 6 1 3 Computer Adjustment Method A VCO The radio is receiving a The channel is on the receiving high frequency adjust C335 and test T300 the spot vo...

Page 25: ...bilized C RX Part 1 Receiver Pass Band a Program the spectrum analyzer and test the receiver pass band at the test point with a high frequency probe b Under the computer mode receiving sensitivity test in five frequency points adjust the receiver pass band to the corresponding center frequency 2 The Maximum Volume Set the RF frequency as the center frequency the signal strength as 1mV and the modu...

Page 26: ...itting frequency deviation nominal frequency 500Hz 7 DTMF frequency deviation 3 4kHz broad band 1 5 2 0 kHz narrow band 8 FFSK frequency deviation 3 4kHz broad band 1 5 2 0 kHz narrow band 9 Under voltage indication The voltage is set as 6 6V and the red light flashes without the transmitting power when press the PTT button Chapter 7 Major Specifications 7 1 General Specification Model FP520 Frequ...

Page 27: ...nce Rejection 65dB Spurious Response Rejection 70dB Audio Output Power 1 3W BTL Distortion 10 16Ω Receiving Consumption Current 400mA 7 3 TX Part Tx Power 4 0W 1 0W 7 5V DC Frequency Stability 2 5ppm The Maximum Modulation Frequency Deviation 2 5kHz Modulation Distortion 300 3000Hz 3 Adjacent Channel Transmitting Power 60dB Spurious Transmitting 70 dB Residual Modulation Frequency 40 dB Transmitti...

Page 28: ... 400 470MHz 4 Digital Voltmeter Measurement Range DC 10mv 10v Input Impedance high input impedance for the minimum circuit 5 Oscilloscope Frequency Range DC to 30MHz 6 High Sensitivity Frequency Counter Frequency Range 50Hz to 10KHz Frequency Stability 0 2ppm or lower 7 Ammeter Maximum Current 5A 8 Audio Frequency Voltmeter Frequency Range 50Hz to 10KHz Volt Range 1mv to 10v 9 Audio Frequency Gene...

Page 29: ...he indicator flashes yellow and the charging current will be cut off The charging will continue automatically after troubleshooting 5 The full battery is recharged for identification When the full NI MH battery is recharged it will continue the charging The charger according the normal ΔV to identify if the battery is full charged When the full Li battery is recharged if the voltage is higher than...

Page 30: ... contact please fasten it again B Low sensitivity adjust the parameter in the test mode C The high mu tube Q703 is broken please change it D The squelch level is too high to turn it on please adjust the squelch level E Mixer tube Q702 is broken please change it F FM processing chip IC700 is broken pleas change to a new IC 5 No voice on the receiving radio when the indicator glows red on the transm...

Page 31: ... E2PROM Electrically Erasable Programmable Read Only Memory HPF High Pass Filter IDC Instantaneous Deviation Control IF Intermediate Frequency LED Light Emitting Diode LNA Low Noise Amplifier LPF Low Pass Filter MCU Micro Control Unit MIC Microphone MOD Modulation MONI Monitor PLL Phase Lock Loop PTT Push To Talk RX Receiver SPK Speaker TCXO Temperature Control Oscillator TX Transmitter UL Un Lock...

Page 32: ... special IC GT3136 SSOP16 1 IC700 1IS1 TDA2822 chip special IC TDA2822 1 U800 1IS1 WM8758B CODEC chip WM8758CB 32 Pin QPN encapsulation 5 5 0 9MM Pb free 1 U6 1IS1 XC6204B502MR chip voltage stabilization IC voltage stabilization IC 5V SOT 23 5 1 IC100 1TF1 2SK1824 chip FET 2SK1824 B1 3 Q606 Q6 Q704 1TF1 2SK508NV K52 chip FET 2 Q302 Q307 1TF1 3SK318 chip dual gate FET 3SK318 YB 2 Q702 Q703 1TF1 RD0...

Page 33: ... C22 C23 C24 C25 C26 C27 C28 C32 C39 C50 C51 C55 C56 C89 C91 C92 C100 C101 C111 C114 C224 C334 C345 C707 C715 C749 C764 C801 C808 C816 C818 C819 C822 2CC1 10 X7R500 333K Chip multilayer capacitance 1005 33nF 10 25V X7R 2CC1 10 X7R250 333K 代用 2 C48 C57 2CC1 10 X7R500 102K Chip multilayer capacitance 1005 1000P 10 50V X7R 24 C34 C122 C304 C322 C347 C351 C366 C612 C636 C645 C647 C706 C709 C711 C712 C...

Page 34: ...ce 1608 33nH 5 MLG1608B33NJ 1 L313 2LL1 16 3N9S laminated inductance 1608 3 9nH 0 3nH MLG1608B3N9S 1 L604 2LL1 16 3R3K laminated inductance 1608 3 3μH 10 MLF1608A3R3K TA00 2 L309 L323 2LL1 16 82NJ laminated inductance 1608 82nH 5 MLG1608B82NJ 2 L307 L310 2LL1 16 R22J laminated inductance 1608 0 22μH 5 LG HK 1608R22J T MLG1608B220N 4 L306 L319 L324 L303 2LL1 16 R56K laminated inductance 1608 560nH ...

Page 35: ...esistance 1005 270Ω 5 3 R309 R318 R605 2RS1 10 272J Chip resistance 1005 2 7K 5 1 R313 2RS1 10 273J Chip resistance 1005 27K 5 2 R631 R720 2RS1 10 274J Chip resistance 1005 270K 5 3 R104 R325 R326 2RS1 10 330J Chip resistance 1005 33Ω 5 1 R610 2RS1 10 332J Chip resistance 1005 3 3K 5 4 R312 R708 R711 R735 2RS1 10 333J Chip resistance 1005 33K 5 2 C811 R701 2RS1 10 334J Chip resistance 1005 330K 5 ...

Page 36: ...nce 2012 1uF 80 20 16V Y5V 2 C36 C218 3CF1 BL112 30RU chip FFC FPC connector Interval 0 5mm 30 core horizontal 1 J4 3FW1 42932 302320 chip fuse 429003 433003 466003 3216 3A 32V 1 F100 2CC1 10 C0G500 3R0D chip multilayer capacitance 1005 3 0P 0 25P 50V C0G GJM1555C1H3R0CB01 muRata HIQ 1 C226 2CC1 20 Y5V100 334Z Chip multilayer capacitance 2012 330nF 80 20 10V Y5V 1 C705 2CC1 10 C0G500 1R0C Chip mul...

Page 37: ...Pb free 1 IC200 1IS1 GT3136 special chip IC GT3136 SSOP16 1 IC700 1IS1 MB15E03SL chip PLL IC MB15E03SL TSSOP 16 1 IC300 1IS1 PST9124NR chip reset IC Reset IC PST9124NR 1 IC202 1IS1 SCT3252PS Digital base band processing chip SCT3252PS LQFP100 Nantongyuan vocoder Pb free 1 U1 1IS1 TDA2822 special chip IC TDA2822 1 U800 1IS1 UPB1509GV special chip IC Frequency divider UPB1509GV SSOP 1 IC4 1IS1 WM875...

Page 38: ...0 25P 50V C0G 4 C314 C315 C324 C723 2CC1 10 C0G500 820J Chip multilayer capacitance 1005 82P 5 50V C0G 1 C759 2CC1 10 C0G500 8R0D Chip multilayer capacitance 1005 8P 0 5P 50V C0G 1 C703 2CC1 10 C0G500 9R0D Chip multilayer capacitance 1005 9P 0 5P 50V C0G 2 C621 C702 2CC1 10 C0G500 R50B Chip multilayer capacitance 1005 0 5P 0 1P 50V C0G 3 C325 C343 C357 2CC1 10 X5R6R3 105K Chip multilayer capacitan...

Page 39: ... 5 3circle pin height 0 5mm wind 2 L9 L500 2LH1 R401R5 L08 05 chip air core inductance wire diameter φ0 40 inner diameter φ1 5 8 circle reverse high pin 1 L607 2LL1 16 1R0K laminated inductance 1608 1μH 10 MLF1608A1R0K 1 L703 2LL1 16 22NJ Laminated inductance 1608 22nH 5 MLG1608B22NJ 1 L610 2LL1 16 33NJ Laminated inductance 1608 33nH 5 MLG1608B33NJ 2 L700 L301 2LL1 16 39NJ Laminated inductance 160...

Page 40: ...15K 5 1 R25 2RS1 10 154J Chip resistance 1005 150K 5 2 R303 R314 2RS1 10 181J Chip resistance 1005 180Ω 5 1 R310 2RS1 10 182J Chip resistance 1005 1 8K 5 2 R44 R817 2RS1 10 184J Chip resistance 1005 180K 5 1 R727 2RS1 10 204J Chip resistance 1005 200K 5 1 R302 2RS1 10 220J Chip resistance 1005 22Ω 5 4 R305 R611 R715 R804 2RS1 10 221J Chip resistance 1005 220Ω 5 1 R726 2RS1 10 222J Chip resistance ...

Page 41: ...n filter 1608 BLM11A601S BLM18AG601S 0138 05 16 L3 L6 L7 L8 L10 L203 L314 L315 L316 L317 L318 L320 L613 L712 L715 L800 5FE1 BLM21P300S chip EMI suppression filter 2012 BLM21P300S BLM21PG300S 0149 05 2 L612 L614 5OD1 12R28 ACL 2520 chip temperature compensated crystal oscillator TCXO Shangjie DSA221SJ 12 2880MHz 1 5PPm 40 85 2 5 2 0 0 8mm 1 Y3 5OT1 12R8 ACL4 0303 chip temperature compensated crysta...

Page 42: ...oof pad Silica gel black hardness 60 degrees Mingkun Pb free 1 4SS7 4050 016 100 speaker MM4050 1638 16Ω 1W Pb free 1 7GCB 360001 W0 φ36 speaker waterproof net Material black waterproof cloth diameter φ36mm thickness 0 1mm 558 1 7MHP 4083 01A W0 front cover Material PC ABS black screen printing texturing Kexin Pb free 1 7MHR 7208 04A W9 light pipe Material silica gel transparent milk white Mingkun...

Page 43: ...paper length 18mm width 8mmthickness 0 2mm rubber on single side 1 7MHS 4083 01A W PTT button metal dome Material φ6mm SUS301 square metal dome Lixinghui Pb free 1 Appendix 5 Accessory List Accessory Quantity Antenna 1 Battery 1 Belt Clip 1 Intelligent Charger 1 Power Adaptor 1 Strap 1 Service Manual 1 Warranty 1 ...

Page 44: ...FP520 Service Manual Page 43 of 64 Figure 1 FP520 01 Mainboard Schematic Diagram 136 174MHz ...

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Page 52: ...FP520 Service Manual Page 51 of 64 Figure 2 FP520 01Top Board Position Mark Diagram 136 174MHz ...

Page 53: ...FP520 Service Manual Page 52 of 64 Figure 3 FP520 01Bottom Board Position Mark Diagram 136 174MHz ...

Page 54: ...FP520 Service Manual Page 53 of 64 Figure 4 FP520 02 Mainboard Schematic Diagram 400 470MHz ...

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Page 62: ...FP520 Service Manual Page 61 of 64 Figure 5 FP520 02 Top Board Position Mark Diagram 400 470MHz ...

Page 63: ...FP520 Service Manual Page 62 of 64 Figure 6 FP520 02 Bottom Board Position Mark Diagram 400 470MHz ...

Page 64: ...FP520 Service Manual Page 63 of 64 Figure 7 KBC 51 7 4V Electrical Schematic Diagram ...

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