RELM RPU416 Скачать руководство пользователя страница 5 | Manualshive

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RELM RPU416 Скачать руководство пользователя страница 5

RPV516/RPU416 Circuit Description

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Circuit Description

1. Frequency configuration

The receiver utilizes double conversion superheterodyne. The first IF is 38.85MHz and the second IF
is 450KHz. The first local oscillator signal is supplied by PLL circuit.
The PLL circuit in the transmitter generates the necessary frequencies. Fig.1 shows the frequencies.
RPV516 frequency range: RPV516 A: 150MHz—174MHz
RPU416 frequency range: RPU416 B: 400MHz—420MHz

RPU416 A: 450MHz—470MHz

B

C

C

B

ANT

ANTSW

RF

MCF

38.85MHz

CF

450KHz

SYSTEM

AF

SP

X3

multiply

IF

TCXO

12.8MHz

MIC

AMP

MIC

PLL

VCO

RX

TX

TX

AMP

PA

AMP

AMP

AMP

Fig. 1. Frequency configuration

2. Receiver

The receiver employs double conversion superheterodyne.

1-a) Front end RF amplifier (RPV516)

The input signal of antenna is applied to an RF amplifier (Q203) after passing through a
transmit/receive switch circuit and a 3-grade low pass filter. The amplified signal is filtered through a
band pass filter (a 3-grade LC filter) to eliminate unwanted signal before it is applied to the first mixer.
The voltage of varactor is provided by MPU (IC403). (See Fig. 2-a)

B

C

C

B

ANT

D102

D103

BPF

Q203

RF AMP

L208-L210

BPF

L214L215

MCF

XF200

IF AMP

Q201

MIXER

Q202

CF200

IF.MIX

IC200

AF AMP

LPF.HPF

IC300

AF PA AMP

IC302

SP

WIDE/NARROW SW

Q303

X3

multiply

Q1

TCXO

1st Local OSC

(PLL)

TUNE

APC

IC403

MCU

Fig. 2-a. Receiver section configuration

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Содержание RPU416

Страница 1: ...mbly for Repair 18 Exploded View 19 RPV516 Parts List 20 RPU416 Parts List 26 Parts List 2 33 Packing 34 RPV516 Level Diagram 35 RPU416 Level Diagram 36 RPV516 PC Board View 37 RPU416 PC Board View 39 RPV516 Block Diagram 41 RPU416 Block Diagram 42 RPV516 Schematic Diagram 43 RPU416 Schematic Diagram 44 Specifications 45 ...

Страница 2: ......

Страница 3: ...ps or in an explosive atmosphere z When in vehicles with an airbag do not place a portable radio in the area over an airbag or in the airbag deployment area z Do not expose the radio to direct sunlight for a long time nor place it close to a heating source z Do not use any portable radio with a damaged antenna If a damaged antenna comes into contact with your skin a minor burn may result z When tr...

Страница 4: ...ws while transmitting green LED glows while receiving red LED flashes when the battery voltage is lower than the preset while transmitting 4 Power Volume control knob Turn the knob clockwise to turn on the power turn the knob counter clockwise to turn off the power After the power is turned on turn the knob to adjust the volume level 5 Speaker 6 Microphone 7 PTT push to talk To transmit hold down ...

Страница 5: ...TX AMP PA AMP AMP AMP Fig 1 Frequency configuration 2 Receiver The receiver employs double conversion superheterodyne 1 a Front end RF amplifier RPV516 The input signal of antenna is applied to an RF amplifier Q203 after passing through a transmit receive switch circuit and a 3 grade low pass filter The amplified signal is filtered through a band pass filter a 3 grade LC filter to eliminate unwant...

Страница 6: ... PLL frequency synthesizer circuit at the first mixer Q202 to create a 38 85 MHz first IF intermediate frequency signal The first IF signal is then applied to two monolithic crystal filters MCFS XF200 to further remove spurious signal 3 IF amplifier The first IF signal is amplified by Q201 and then enters IC200 IF processing IC The signal is heterodyned again with a second local oscillator signal ...

Страница 7: ...C403 determines whether the CTCSS or CDCSS matches the preset value and controls the MUTE and AFCO and the speaker sounds output according to the squelch results TTS IC200 output signal is filtered by IC8 and then applied to the microprocessor IC403 IC403 compares TTS with the preset value and controls MUTE and AFCO and speaker output according to squelch results 3 PLL frequency synthesizer PLL ci...

Страница 8: ...low level signal appears at the LD pin of IC1 an unlock condition occurs and the DC voltage obtained from D7 R6 and C1 causes the voltage applied to the UL pin of the microprocessor to go low When the microprocessor detects this condition the transmitter is disabled ignoring the push to talk switch input signal See Fig 5 IC1 LD PLL IC D7 5C R6 C1 IC403 UL MPU Fig 5 Unlock detector circuit 4 Transm...

Страница 9: ...he VCO buffer amplifier Q100 is amplified by Q101 and Q102 This amplified signal is passed to the power amplifier Q102 and Q105 which consists of a 2 stage FET amplifier and is capable of producing up to 4 5W of RF power See Fig 7 a Fig 7 a APC system 4 b RF amplifier RPU416 The RF signal obtained from the VCO buffer amplifier Q100 is amplified by Q101 and Q102 This amplified signal is passed to t...

Страница 10: ... circuit compares the voltage obtained from the above drain current with a reference voltage which is set using the microprocessor The APC voltage is proportional to the difference between the sensed voltage and the reference voltage output from IC100 1 2 This output voltage controls the gate of the FET power amplifier which keeps the transmitter output power be varied by the microprocessor which ...

Страница 11: ...tional communications mode 2 PC mode The following parameters can be set by using external programmer or PC programming software 1 Receive frequency Transmit frequency 2 Receive signaling Transmit signaling 3 Busy channel lockout 4 Clock frequency offset 5 TOT 6 Squelch level 7 Power saving 8 Audio alarm 9 Channel spacing 25KHz 12 5KHz Wide Narrow 10 Monitor mode 11 Scan mode 12 Scan revert channe...

Страница 12: ...its model and channel data short out the two SELF points on PCB and turn on the power set the channel selector knob at CH2 and then press PTT while holding down MONI channel data of CH1 CH2 CH3 and CH4 is initialized as the corresponding data of No 2 The receive and transmit frequencies of channel 5 14 are same as channel 1 and the tone of CH5 and CH10 is 67 0Hz CH6 and CH11 is 151 4Hz CH7 and CH1...

Страница 13: ...406 000 429 995 410 000 38 85 418 100 418 100 418 000 418 100 406 000 406 100 429 975 429 900 144 000 147 995 145 000 38 85 146 100 146 100 146 000 146 100 144 000 144 100 147 975 147 900 11 336 000 367 995 350 000 38 85 352 100 352 100 352 000 352 100 336 000 336 100 367 975 367 900 12 268 000 395 995 380 000 38 85 382 100 382 100 382 000 382 100 268 000 268 100 395 975 395 900 13 430 000 439 995...

Страница 14: ...3 CH 16 are defined as follows 13 Center frequency difference between transmit and receive frequency is 0 1MHz 14 Lowest frequency difference between transmit and receive frequency is 0 1MHz 15 Highest frequency difference between transmit and receive frequency is 0 075MHz 16 Center frequency transmit with 250 3Hz CTCSS tone difference between transmit and receive frequency is 0 1MHz Note To enabl...

Страница 15: ...ontrol except CPU and EEPROM L unlock 37 AFCO O AF amplifier H unlock 38 RX O TX RX VCO H receive 39 GLED O Green light control H light 40 RLED O Red light control H light 41 SAVE O Power saving control H power saving OFF 42 MUTE O mute control H mic squelch L AF squelch 43 5RC O Receiver power control L unlock 44 5TC O Transmitter power control H unlock 45 NC I NC 46 NC I NC 47 NC I NC 48 NC I NC...

Страница 16: ...NI the channel data and function settings are initialized Please refer to the chapter software descriptions 2 Adjustment The adjustment of RPV516 RPU416 some are adjusted in user mode some are in manual adjust mode Turn on the power the radio enters the user mode While pressing PTT and MONI simultaneously turn on the radio the radio enters the manual adjust mode in 3 seconds Refer to the manual ad...

Страница 17: ...rn to channel 13 in manual mode Channel spacing Wide 2 CH RX Center Turn to channel 14 in manual mode Channel spacing Wide 5 Sensitivity Wide 3 CH RX Center Turn to channel 15 in manual mode Channel spacing Wide Communica tion analyzer SSG output 118dBm MOD 1KHz DEV 3KHz FILTER 0 3 3 4KHz ANT SP Check SINAD 12dB or higher 1 CH RX center Turn to channel 13 in manual mode Channel spacing narrow 2 CH...

Страница 18: ...W RPV516 3 7 W Po 4 7 W RPU416 I 1 6A 9 Power 3 CH TX High Turn to channel 4 Press PTT Adjust it to 4 0 W Po 4 8 W RPV516 3 7 W Po 4 7 W RPU416 I 1 6A 1 CH TX Center Turn to channel 13 in manual mode Channel spacing wide Press PTT VR501 Adjust deviation to 4 2KHz 100Hz Wide 10 Max Deviation 2 CH TX Center Turn to channel 13 in manual mode Channel spacing narrow Press PTT Communication analyzer LPF...

Страница 19: ...condition 1 and condition 2 are consistent the difference 20Hz 250 3Hz CTCSS 1 CH TX Center Turn to channel 9 in manual mode Communication analyzer LPF 300Hz ANT PTT upwards MONI downwards Adjust dev to 0 75KHz 50Hz Wide 13 CTCSS Deviation 2 CH TX Center Turn to channel 10 in manual mode Adjust dev to 0 35KHz 50Hz Narrow 1 CH TX Center Turn to channel 11 in manual mode Adjust dev to 0 75KHz 50Hz W...

Страница 20: ...nt cover assembly lift the chassis and remove it from the front cover assembly 4 Taking care not to cut the wire assembly connecting the speaker and chassis separate the chassis and the front cover assembly Removing the lever Raise the lever on the bottom of the case insert a small flat screwdriver into the space between the case and lever open the case carefully and lift the lever off Note Do not...

Страница 21: ...RPV516 RPU416 Exploded View 19 Exploded View ...

Страница 22: ...093100 socket antenna R120 01033322 3 3K B3G 23 1409309S aluminum chassis R121 01034732 47K B3G 24 14063071 cathode piece R122 01036812 680 T2J battery R123 01030002 0 B4I 25 19090041 battery R124 01035612 560 T2H 26 14093060 spring belt clip R125 01033322 3 3K T2H 27 15091050 holder belt clip R126 01036812 680 T2J 28 15091040 belt clip R127 01032712 270 B4J 29 14093050 pin R128 01032712 270 B4J R...

Страница 23: ...3B R425 01033322 3 3K B2I R302 01035621 5 6K B3B R426 01038222 8 2K B2K R303 01033322 3 3K B2B R427 01031022 1K B2H R304 01031052 1M B3B R428 01032722 2 7K B2H R305 01031832 18K B2A R429 01038212 820 B2H R306 01031241 120K B3A R430 01031012 100 T4J R307 01034732 47K B2A R431 01030002 0 T4J R308 01031032 10K B3A R432 01031032 10K B2H R309 01034741 470K B3B R433 01031531 15K B2H R310 01030002 0 T2F ...

Страница 24: ...3G VR500 0122683H T2D C108 0203120G 12pF B3F VR501 0122153H T3E C109 02031023 1000pF B3G C110 02031043 0 1μF B3G C111 02031023 1000pF B3G C1 02031043 0 1μF B1C C112 02031023 1000pF T2J C2 02031012 100pF B1B C113 02032002 20pF B3G C3 02031012 100pF B2B C114 02031023 1000pF B3G C4 02031043 0 1μF B2D C115 02031023 1000pF T3J C5 T0606475 4 7μF B2D C116 02031023 1000pF B3G C6 02031012 100pF B1C C118 02...

Страница 25: ...33μF B1A C216 0203020B 2pF B4D C321 02033333 0 033μF B1A C217 02031033 0 01μF B4E C322 02051043 0 1μF B1A C218 02031023 1000pF B3E C327 02031043 0 1μF T2E C219 02031502 15pF B3E C330 02031012 100pF T1E C220 02031023 1000pF B3E C331 02054743 0 47μF T2E C221 02031033 0 01μF B4D C332 T0606106 10μF T1E C222 0203060B 8pF B3E C333 0203474Z 0 47μF T1E C334 02032212 220pF T2F C223 0203020B 2pF B5D C335 02...

Страница 26: ...3087510 0 75uH B4E C518 02032233 0 022μF T4G C519 T0606475 4 7μF T3G L208 03215600 56nH B4G C520 02032233 0 022μF T4G C521 02031023 1000pF T4G L209 03215600 56nH B4G C522 02051043 0 1μF T4G C523 T0504225 2 2μF T5H L210 03214700 47nH B4H C524 02032733 0 027μF T4G L211 03183300 33nH B4F C525 02031043 0 1μF T4I C526 02034713 470pF T4H L214 03215600 56nH B4E C527 T0606106 10μF T5H L215 03085610 0 56μH...

Страница 27: ...23J B2J CN100 antenna socket T1K Q500 06011824 T3G CN500 power electrode B2J Q501 05024617 T3E W 500 20020801 wire ASTVR1 Φ 0 35red T5I Q502 05024617 T3F W 501 20020800 wire ASTVR1 Φ 0 35black T5I Q503 05024919 T4H Q504 0505143Z T4C R600 01034732 47K T1A R601 01031032 10K T2A D1 04012830 B2E R602 01036842 680K T1A D2 04012830 B2E R603 01031032 10K T2A D3 04012830 B1G R604 01035621 5 6K T2A D4 0401...

Страница 28: ... PU 416B 26 14093060 spring belt clip R 117 01031242 120K B3G R PU 416A 27 15091050 holder belt clip R 118 01034732 47K B3G 28 15091040 belt clip R 119 01034722 4 7K T2J 29 14093050 pin R 120 01030002 0 B3G R 121 01034702 47 B3G R 1 01031022 1K T5C R 122 01036812 680 T2J R 2 01031022 1K B1C R 123 01050002 0 B4I R 3 01031002 10 B2D R 124 01036812 680 T2J R 4 01031022 1K B3D R 125 01031832 18K B3G R...

Страница 29: ...2 4 7K T4C R227 01030002 0 B5H R417 01031002 10 T4K R228 01031042 100K B5E R418 01032222 2 2K T2C R230 01031042 100K B4E R419 01030002 0 B2I R231 01031042 100K B4G R420 01031022 1K B2I R232 01031042 100K B4H RPU416B R421 01034732 47K T4J R233 01030002 0 B3E R422 01032722 2 7K B2H R300 01039131 91K B1B R423 01034732 47K T4J R301 01035621 5 6K B3B R424 01033322 3 3K B2I R302 01035621 5 6K B3B R425 0...

Страница 30: ... 4pF B1E RPU416A R536 01031022 1K T5J C42 0203120G 12pF B2F RPU416B R537 01031012 100 T5I C42 02031000 10pF B2F RPU416A R538 01031012 100 T5H C43 02031023 1000pF B1F R539 01030002 0 T5H C44 0203070B 7pF B1F RPU416B R540 01050002 0 T5B C44 0203040B 4pF B1F RPU416A R541 01034722 4 7K T5C C45 02031000 10pF B1F RPU416B R542 01030002 0 T3G C45 0203080B 8pF B1F RPU416A R543 01030002 0 T3E C46 02034713 4...

Страница 31: ...2033R6B 3 6pF B4G RPU416A C149 0203010B 1pF B4J C256 02031043 0 1μF B5B C150 0203040B 4pF B4J RPU416B C257 02034713 470pF B5E C150 0203050B 5pF B4J RPU416A C258 02031043 0 1μF B5D C151 0203020B 2pF B4J RPU416B C259 0203070B 7pF B5E RPU416B C151 02031R5B 1 5pF B4J RPU416A C259 0203040B 4pF B5E RPU416A C153 0203040B 4pF B4J RPU416B C260 0203030B 3pF B4H RPU416B C153 0203030B 3pF B4J RPU416A C154 020...

Страница 32: ...2nH B 2F C 501 02032733 0 027μ F T2C L100 03182200 22nH B 2E C 502 02033923 3900pF T5C L101 03181800 18nH B 3F C 503 02033333 0 033μ F T5C L102 03181500 15nH B 3G C 504 T0606475 4 7μ F T2B L103 0312601S B 3F C 505 02051053 1μ F T3E L104 03081020 1μ H B 3H C 506 02034713 470pF T3G L105 0313221S B 3H C 507 T0504225 2 2μ F T3E L106 03193580 8T B 3I C 508 02031033 0 01μ F T3E L107 0313600S B 3I C 509 ...

Страница 33: ... 06002430 B1F Q6 05025108 B2F Q7 0508UMC4 B1F X1 10128CXO 12 8MHz B3C Q8 05024617 B2F Q100 05025108 B2E Q101 05025108 B3F X400 10073728 7 3728MHz T3A Q102 05024988 B3G Q103 06011824 T2J Q104 05107170 T2J XF201 11388500 38 85MHz B4D Q105 06013475 B3G Q106 06011824 T2H Q107 06013476 B3H CF200 1145000F 450kHz B4C Q108 0506114E T2G Q109 0506144E T2H Q110 0506114T T2H CD200 12450001 450kHz B5A Q200 050...

Страница 34: ...A C603 02031043 0 1u T2A R601 01031032 10K T2A C604 02031233 0 012u T2A R602 01036842 680K T1A C605 02031012 100p T1A R603 01031032 10K T2A C606 02031233 0 012u T2A R604 01035621 5 6K T2A C701 02033923 3900p T4H R605 01031032 10K T2A C702 02033333 0 033u T4H R606 01034732 47K T2B C703 02031033 0 01uF T4I R607 01033932 39K T2B C704 02036823 6800p T4H R608 01031022 1K T1A C59 02031043 0 1u T2C R701 ...

Страница 35: ...h 10 Cover Microphone 11 Spring Battery release 12 Metal piece Battery release 13 Latch Battery release 14 Washer SP 15 Speaker 16 Washer Microphone 17 Waterproof ring Aluminum chassis 18 Battery connector positive 19 Waterproof rubber gasket Jack 20 Plus connector supporter 21 Aluminum chassis 22 Battery connector negative 23 Battery 24 Spring belt clip 25 Holder belt clip 26 Belt clip 27 Shaft ...

Страница 36: ...RPV516 RPU416 Packing 34 Packing Owner s Manual Charger Battery Main Unit Adapter Antenna Belt Clip Portable Strip Gift Box ...

Страница 37: ...23 5mVrms 0 63Vrms SP IC302 IC300 IC200 Q201 XF200 L203 L214 L208 116 5dBm ANT L114 113dBm 5R 98dBm 1st Local 0 1Vrms RF IF 38 85MHz center AF 1kHz Q203 Q202 Q307 C137 C212 R217 R211 R210 VR L221 Rx Section RPV516 Level Diagram Measure the audio frequency on an AF VTVM and radio frequency on a RF VTVM at high impedance Set the MIC input to obtain a modulation factor of 60 with the transmit frequen...

Страница 38: ...requency at center and a modulation frequency of 1KHz RPU416 Level Diagram Rx Section MIC VR501 C40 D5 Q4 Q100 C100 Q6 Q101 C106 Q102 C114 Q105 ANT IC500 16mVrmS 430mVrms 310mVrms 0 15Vrms 0 44Vrms 0 8Vrms 4W AF VTVM RF VTVM C119 Q107 0 62Vrms 103dBm 104dBm 106 5dBm 103dBm 1018mVrms 175mVrms 23 5mVrms 0 63Vrms SP IC302 IC300 IC200 Q201 XF201 L203 L214 L208 116 5dBm ANT L112 113dBm 5R 98dBm 1st Loc...

Страница 39: ...tter Carrier power 4 0W Modulation sensitivity 12 3mV Modulation distortion 5 Modulation limiting 5KHz 2 5KHz Audio response From 6 dB oct Pre emphasis 3dB RF Spurious emissions Under 1 GHz 36dBm Adjacent channel power 70 dB 60dB Receiver Reference sensitivity Preceding 0 28μV or 0 35μV Audio squelch sensitivity 0 4μV Audio frequency power 500mW Audio distortion 7 Bandwidth 7 KHz Audio response Fr...

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