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Motorola GM1200E, Руководство по обслуживанию

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Transmitter Power Amplifier (PA) 5-25W

3.1-28

Introduction/Theory of Operation

12.4

Antenna Switch

The antenna switch is switched synchronously with the K9V1 voltage along with the voltage PWR 
CNTL signal and feeds either the antenna signal coming through the harmonic filter to the receiver 
or the transmitter signal coming from the PA to the antenna via the harmonic filter.

In transmit mode, this PWR CNTL is above 1 V and biases Q3511 through Q3641 and Q3642 to 
allow a collector current to be drawn. The collector current of Q3511 drawn from A+ flows via L3631, 
L3531, L3532, L3533, directional coupler, D3551, L3651, D3651, L3652, R3645, R3646, L3641, 
L3511 and switches the PIN diodes D3551 and D3651 to the low impedance state. D3551 leads the 
RF signal from the directional coupler to the harmonic filter. The low impedance of D3651 is 
transformed to a high impedance at the input of the harmonic filter by the resonant circuit formed by 
L3651,C3652 and the input capacitance of the harmonic filter.

Transistor Q3643, controlled by the microprocessor via Signal K9V1, is used to switch the collector 
current of Q3641 on in transmit mode and off in receive mode. In receive mode the low K9V1 and 
the low PWR CNTL turn off the collector current of Q3511  through Q3641  and Q3642. With no 
current drawn by Q3511  and resistor R3651 pulling the voltage at PIN diode D3651 to A+ both PIN 
diodes are switched to the high impedance state. The antenna signal, coming through the harmonic 
filter, is channelled to the receiver via L3651, C3651 and line PA RX. The high impedance of D3551/
D3651 in off state does not influence the receiver signal.

12.5

Harmonic Filter

The transmitter signal from the antenna switch is channelled through the harmonic filter to the 
antenna connector J3501.The harmonic filter is formed by inductors L3551, L3552, and capacitors 
C3551 through to C3554 This network forms a low-pass filter to attenuate harmonic energy of the 
transmitter to specifications level. R3551 is used for electro-static protection.

12.6

Power Control

The power control loop regulates transmitter power with an automatic level control (ALC) loop and 
provides protection features against excessive control voltage and high operating temperatures.

MOS FET device bias, power and control voltage limit are adjusted under microprocessor control 
using a Digital to Analogue (D/A) converter (U0731). The microprocessor writes the data into the D/
A converter via serial interface (SRL) composed of the lines SPI CLCK SRC (clock), SPI DATA SRC 
(data) and DAC CE (chip enable). The D/A adjustable control voltage limit increases transmitter rise 
time and reduces adjacent channel splatter as it is adjusted closer to the actual operating control 
voltage.

The microprocessor controls K9V1 ENABLE (U0101-3) to switch on the first PA stage via transistors 
Q0741, Q0742 and signal K9V1. The antenna switch is turned on by the collector current of the first 
PA stage. PA DISABLE, also microprocessor controlled (U0101-34), sets BIAS VLTG (U0731-4) and 
VLTG LIMIT SET (U0731-13) via Q0731, D0731 in receive mode to low to switch off the bias of the 
MOS FET device Q3521 and to switch off the power control voltage (PWR CNTL).

Through an Analogue to Digital (A/D) input (VLTG LIMIT) the microprocessor can read the PA 
control voltage (PWR CNTL) during the tuning process.

Содержание GM1200E

Страница 1: ...European Publications Department RPG Fleet Hampshire England Issue July 1998 GM1200E Mobile Radio Detailed Service Manual 68P64115B15 ...

Страница 2: ...ii ...

Страница 3: ...NSITIVE DEVICES ESDs ANY DEVICES EMPLOYING METAL OXIDE SILICON MOS TECHNOLOGY ARE PARTICULARLY SUSCEPTIBLE CIRCUIT DIAGRAMS MARKED WITH THE ABOVE SYMBOL INDICATE ELECTRONIC CIRCUITS PECs FOR WHICH ESD HANDLING PRECAUTIONS ARE NECESSARY THE USER SHOULD REFER TO BS5783 1984 HANDLING OF ELECTROSTATIC SENSITIVE DEVICES THIS BRITISH STANDARD SUPERSEDES DEF STAN 59 98 ISSUE 2 ...

Страница 4: ...Cautions and Warnings iv ...

Страница 5: ...OLVED AND WHO HAVE TAKEN ADEQUATE PRECAUTIONS TO PROTECT THEMSELVES COMPONENTS CONTAINING BERYLLIUM OXIDE ARE USED IN THIS EQUIPMENT DUST FROM THIS MATERIAL IS A HEALTH HAZARD IF INHALED OR ALLOWED TO COME INTO CONTACT WITH THE SKIN GREAT CARE MUST BE TAKEN WHEN HANDLING THESE COMPONENTS WHICH MUST NOT BE BROKEN OR SUBJECTED TO EXCESSIVE HEATING DEFECTIVE COMPONENTS MUST BE DISPOSED OF IN ACCORDAN...

Страница 6: ...Cautions and Warnings vi ...

Страница 7: ...Provides level 3 service information on the Display Keypad Control Head K6 detailed in the following chapters 2 1 Introduction Theory of Operation 2 2 PCB Schematic Diagrams and Parts Lists 3 0 UHF VHF Radio Level 3 Information Provides level 3 service information on the UHF VHF radio detailed in the following chapters 3 1 Introduction Theory of Operation 3 2 PCB Schematic Diagrams and Parts Lists...

Страница 8: ...Contents viii Detailed Service Manual ...

Страница 9: ...Table of Contents Paragraph Page 1 0 Introduction 1 2 0 Scope of Manual 1 3 0 How to Use This Manual 1 4 0 Warranty and Service Support 1 4 1 Warranty Period 1 4 2 After Warranty Period 2 4 3 Piece Parts 2 4 4 Technical Support 2 4 5 Associated Documentation 2 ...

Страница 10: ...Table of Contents 1 ii Introduction ...

Страница 11: ...g term support for its products This support includes full exchange and or repair of the product during the warranty period and service repair or spare parts support out of warranty Any return for exchange or return for repair by an authorised Motorola Dealer must be accompanied by a Warranty Claim Form Warranty Claim Forms are obtained by contacting an Authorised Motorola Dealer 4 1 Warranty Peri...

Страница 12: ...uded this generally means that no user serviceable parts are available for that kit or assembly All orders for parts information should include the complete Motorola identification number All part orders should be directed to your local RPSG office Head Office Motorola G m b H European Parts Department 65232 Taunusstein Germany 4 4 Technical Support Motorola Product Services is available to assist...

Страница 13: ...Control Head Level 3 Information 2 i Chapter 2 Control Head Level 3 Information Table of Contents Table of Contents Chapter 2 1 Introduction Theory of Operation 2 2 PCB Schematic Diagram and Parts List ...

Страница 14: ...Table of Contents 2 ii Control Head Level 3 Information ...

Страница 15: ...oded View Diagram 2 3 0 Theory of Operation 2 3 1 General 2 3 2 Power Supplies 3 3 3 Voltage Regulator Circuit 3 3 4 Power On Off 3 3 5 Microprocessor Circuit 4 3 6 Serial Peripheral Interface SPI 4 3 7 Keypad Keys 5 3 8 Status LED and Back Light Circuit 5 3 9 Liquid Crystal Display LCD 5 3 10 Microphone Connector 6 3 11 Electrostatic Transient Protection 6 ...

Страница 16: ...Table of Contents 2 1 ii Introduction Theory of Operation ...

Страница 17: ...evel Indicators RSSI Backlit Liquid Crystal Display LCD with display icons to show call progress and status Up Down scrolling keys for the display Left Right scrolling keys for the display 3 x 4 CCITT Keypad Microphone Socket Clear Edit Button Menu Button Status Button Personality Button Data Button Call In Absence Button Base Call Button External Alarm Button 3 LED s Red Yellow and Green 2 1 2 1 ...

Страница 18: ... symbols 11 bars and a 24x120 dot matrix for graphical or alpha numerical information e g channel number select code call address name To control the LEDs and the LCD and to communicate with the host radio the control head uses the Motorola 68HC11E9 or 68HC11E20 dependent on the used character set microprocessor Gasket 3286006B01 PCB 8486015B05 not field replaceable Keypad 7586002B03 LCD module 72...

Страница 19: ...output of U0891 Input and output capacitors C0892 C0893 and C0895 C0896 are used to reduce high frequency noise and provide proper operation during battery transients Diode D0891 prevents discharge of C0893 by negative spikes on the FLT A voltage This regulator provides a reset output pin 5 that goes to 0 volts if the regulator output goes out of regulation This is used to reset the microprocessor...

Страница 20: ...7 These lines sense the voltage level ranging from 0 to 5V of the input line and convert that level to a number ranging from 0 to 255 which can be read by the software to take appropriate action U0901 22 is the high reference voltage for the A D ports on the µP Resistor R0927 and capacitor C0925 filter the 5V reference If this voltage is lower than 5V the A D readings will be incorrect Likewise U0...

Страница 21: ...t source transistor The backlight for the LCD and the keypad is controlled by the host radio the same way as the indicator LEDs using µP pins 8 9 10 The keypad backlight current is drawn from the FLT A source and controlled by transistor Q0851 The current flowing through the LEDs cause a proportional voltage drop across the parallel resistors R0861 R0862 This voltage drop is amplified by the op am...

Страница 22: ...ltiplier doubles the supply voltage In this configuration the multiplier output VOUT U0902 42 supplies a voltage of 5V 2 5V below VDD The multiplied voltage VOUT is sent to the internal voltage regulator To set the voltage level of the regulator output V5 U0902 43 this voltage is divided by the resistors R0958 and R0959 and feed back to the reference input VR U0902 44 In addition the regulator out...

Страница 23: ...Schematic Diagram and Parts List Table of Contents Table of Contents Description Page Display Keypad Radio Control Head K6 Diagrams and Parts Lists PCB Layout Top Side 1 PCB Layout Bottom Side 1 Schematic Diagram 1 of 2 2 Schematic Diagram 2 of 2 3 Parts List 4 ...

Страница 24: ...Table of Contents 2 2 ii PCB Schematic Diagram and Parts List ...

Страница 25: ...F VHF Radio Level 3 Information 3 i Chapter 3 UHF VHF Radio Level 3 Information Table of Contents Table of Contents Chapter 3 1 Introduction Theory of Operation 3 2 PCB Schematic Diagrams and Parts Lists ...

Страница 26: ...Table of Contents 3 ii UHF VHF Radio Level 3 Information ...

Страница 27: ...eripheral Interface SPI 4 2 10 SPEB Serial Interface 5 2 11 General Purpose Input Output 6 2 12 Normal Microprocessor Operation 6 2 13 FLASH Electronically Erasable Programmable Memory FLASH EEPROM 8 2 14 Electrically Erasable Programmable Memory EEPROM 8 2 15 Static Random Access Memory SRAM 9 Controller Audio and Signalling Circuits 3 0 General 9 3 1 Audio Signalling Filter IC ASFIC 9 3 2 Audio ...

Страница 28: ...gnalling Circuits 17 7 1 Sub audible Data PL DPL and High Speed Data Decoder 17 7 2 Alert Tone Circuits 17 UHF 403 470MHz SPECIFIC CIRCUIT DESCRIPTION 8 0 Receiver Front End 18 8 1 Front End Band Pass Filter Pre Amplifier 18 8 2 Mixer and Intermediate Frequency IF Section 19 8 3 IF IC U5201 19 9 0 Transmitter Power Amplifier PA 5 25W 19 9 1 Power Controlled Stage 19 9 2 PA Stages 20 9 3 Directiona...

Страница 29: ...Intermediate Frequency IF Section 26 11 3 IF IC U5201 26 12 0 Transmitter Power Amplifier PA 5 25W 26 12 1 Power Controlled Stage 27 12 2 PA Stages 27 12 3 Directional Coupler 27 12 4 Antenna Switch 28 12 5 Harmonic Filter 28 12 6 Power Control 28 13 0 Frequency Synthesis 30 13 1 Reference Oscillator 30 13 2 Fractional N Synthesizer U3701 30 13 3 Voltage Controlled Oscillator VCO 30 13 4 Synthesiz...

Страница 30: ...Table of Contents 3 1 iv Introduction Theory of Operation ...

Страница 31: ... the radio board is based upon an open architecture controller configuration It consists of a microprocessor support memory support logic signal MUX ICs the On Off circuit and general purpose Input Output circuitry The controller uses the Motorola 68HC11K1 microprocessor U0101 In addition to the microprocessor the controller has 3 external memory devices The 3 memory devices consist of a 32kbyte S...

Страница 32: ... or external triggers to turn the radio on or off without direct user action For example automatic turn on when ignition is sensed and off when ignition is off Q0611 is used to provide SW B to the various radio circuits Q0611 contains a pnp and an npn transistor and acts as an electronic on off switch The switch is on when the collector of the npn transistor Q0611 1 is low When the radio is off th...

Страница 33: ...ld while the radio is on the software detects the line ANALOG 3 changing to low and switches the radio off by setting B CONTROL to low 2 6 Ignition Ignition sense is used to prevent the radio from draining the vehicle s battery because the engine is not running When the IGNITION input J0400 10 goes above 6 volts Q0611 is turned on via line IGNITION CONTROL Q0611 turns on SW B and the microprocesso...

Страница 34: ... when debugging the system 2 9 Serial Peripheral Interface SPI The µP communicates to many of the ICs through its SPI port This port consists of SPI TRANSMIT DATA MOSI U0101 1 SPI RECEIVE DATA MISO U0101 80 SPI CLK U0101 2 and chip select lines going to the various ICs connected on the SPI PORT BUS This BUS is a synchronous bus in that the timing clock signal CLK is sent while SPI data SPI TRANSMI...

Страница 35: ...ard terminates the chip select and CLK activity 2 10 SPEB Serial Interface The SBEP serial interface allows the radio to communicate with the Dealer Programming Software DPS via the Radio Interface Box RIB This interface connects to the Microphone connector J0903 J0803 via Control Head connector J0101 15 or to the accessory connector J0400 6 and comprises BUS J0101 15 The line is bi directional me...

Страница 36: ...SRAM U0104 or U0107 optional EEPROM Also within the µP there are 768 bytes of internal RAM and 640 bytes of internal EEPROM as well as logic to select external memory devices The optional external EEPROM U0104 or U0107 as well as the µP s own internal EEPROM space contain the information in the radio which is customer specific referred to as the codeplug This information consists of items such as ...

Страница 37: ...begins a new instruction an instruction typically requires 2 4 external bus cycles or memory fetches However since it is an open drain output the waveform rise assumes an exponential shape similar to an RC circuit There are eight analogue to digital converter ports A D on U0101 They are labelled within the device block as PE0 PE7 These lines sense the voltage level ranging from 0 to 5 V of the inp...

Страница 38: ...29 and 33 In normal operating mode VPP is below 5V which switches Q0102 off and Q0103 on The FLASH device may be reprogrammed 1 000 times without issue It is not recommended to reprogram the FLASH device at a temperature below 0 C Capacitor C0131 serves to filter out any AC noise which may ride on 5V at U0101 and C0132 filters out any AC noise on Vpp 2 14 Electrically Erasable Programmable Memory ...

Страница 39: ...up various paths within the ASFIC to route audio and or signalling signals through the appropriate filtering gain and attenuator blocks The ASFIC also has 6 General Control Bits GCB0 5 which are CMOS level outputs and used for AUDIO PA ENABLE GCB0 to switch the audio PA on and off EXTERNAL ALARM GCB1 and B CONTROL GCB2 to switch the voltage regulators and the radio on and off GCB3 controls output ...

Страница 40: ...MOS amplifier input R0205 and C0209 provide a 1kΩ AC path to ground that sets the input impedance for the microphone and determines the gain based on the emitter resistor in the microphone s amplifier circuit Figure 3 1 Transmit Audio Paths Filter capacitor C0210 provides low pass filtering to eliminate frequency components above 3 kHz and C0211 serves as a DC blocking capacitor The audio signal a...

Страница 41: ... the ASFIC output U0201 H8 from shifting when the ASFIC transmit circuits are powered up The signal is then limited to prevent the transmitter from over deviating The limited MIC audio is then routed through a summer which is used to add in signalling data and then to a splatter filter to eliminate high frequency spectral components that could be generated by the limiter The audio is then routed t...

Страница 42: ...0 Hz which is audible to the human ear However the radio receiver filters out any audio below 300Hz so these tones are never heard in the actual system Only one type of sub audible data can be generated by U0201 ASFIC at any one time The process is as follows using the SPI BUS the µP programs the ASFIC to set up the proper low speed data deviation and select the PL or DPL filters The µP then gener...

Страница 43: ...these signalling schemes are based on sending a combination of 1200 Hz and 1800 Hz tones only Microphone audio is muted during High Speed Data signalling 5 3 Dual Tone Multiple Frequency DTMF Data DTMF data is a dual tone waveform used during phone interconnect operation It is the same type of tones which are heard when using a Touch Tone telephone There are seven frequencies with four in the low ...

Страница 44: ...nuated and rectified It is then sent to a comparator to produce an active high signal on CH ACT A squelch tail circuit is used to produce SQ DET U0201 H1 from CH ACT The state of CH ACT and SQ DET is high logic 1 when carrier is detected otherwise low logic 0 FLT RX AUDIO J0400 11 16 1 EXTERNAL SPEAKER INTERNAL SPEAKER ACCESSORY CONNECTOR CONTROL HEAD CONNECTOR HANDSET AUDIO 14 1 2 J0101 INT SPKR ...

Страница 45: ... The µP programs the attenuator using the SPI BUS based on the volume setting The minimum maximum settings of the attenuator are set by codeplug parameters Since sub audible signalling is summed with voice information on transmit it must be separated from the voice information before processing Any sub audible signalling enters the ASFIC from the IF IC at PL IN U0201 J7 Once inside it goes through...

Страница 46: ... For those devices HANDSET AUDIO is available at J0101 14 The received audio from the output of the ASFIC s digital volume attenuator is also routed to U0202 4 pin 9 where it is amplified 15 dB this is set by the 10k 68k combination of R0233 and R0232 This signal is routed from the output of the op amp U202 4 pin 8 to J0101 14 The control head sends this signal directly out to the microphone jack ...

Страница 47: ...ation in the ASFIC stores one bit every clock cycle The external capacitors C0226 C0225 and C0223 set the low frequency pole for a zero crossings detector in the limiters for PL and HS data The hysteresis of these limiters is programmed based on the type of received data Note that during HS data the µP may generate a sampling waveform seen at U0201 G1 7 2 Alert Tone Circuits When the software dete...

Страница 48: ...n the first IF section and two ceramic filters in the second IF section provide the required selectivity The second IF at 455 kHz is mixed amplified and demodulated in the IF IC The processing of the demodulated audio signal is performed by an audio processing IC located in the controller section 8 1 Front End Band Pass Filter Pre Amplifier A two pole pre selector filter tuned by the varactor diod...

Страница 49: ...F IC the signal is demodulated in a phase lock detector and fed from IF IC pin 28 to the audio processing circuit ASFIC U0201 located in the controller section line DET AUDIO The squelch circuit of the IF IC is not used Instead the squelch circuit inside the audio processing IC ASFIC U0201 determines the squelch performance and sets the squelch threshold The detector output signal from IF IC U5201...

Страница 50: ...ase of Q5520 is slightly positive biased by a divided K9V1 signal This bias along with the RF signal from Q5510 allows a collector current to be drawn from the antenna switch circuit and in turn switches the antenna switch to transmit while in receive mode the low K9V1 signal with no RF signal present cuts off the collector current and in turn switches the antenna switch to receive The following s...

Страница 51: ...fluence the receiver signal 9 5 Harmonic Filter The transmitter signal from the antenna switch is channelled through the harmonic filter to the antenna connector J5501 The harmonic filter is formed by inductors L5552 L5553 and capacitors C5557 C5552 through C5555 This network forms a low pass filter to attenuate harmonic energy of the transmitter to specifications level R5550 is used for electro s...

Страница 52: ...ncy response is controlled by opamp feedback components R0712 and C0711 Opamp U0701 3 compares the power control voltage PWR CNTL divided by resistors R0717 to R0719 with the voltage limit setting VLTG LIMIT SET from the D A converter U0731 13 and keeps the control voltage constant via Q0711 if the control voltage reduced by the resistive divider R0717 to R0719 approaches the voltage of VLTG LIMIT...

Страница 53: ...stal the reference oscillator Y5702 must be soldered in along with C5706 C5707 R5703 Components Y5701 C5708 C5710 R5704 D5702 must be removed and the value of C5709 must be changed Afterwards the radio must be retuned 10 2 Fractional N Synthesizer U5701 The FRAC N synthesizer IC U5701 consists of a pre scaler a programmable loop divider control divider logic a phase detector a charge pump an A D c...

Страница 54: ...IC U5701 pin28 modulates the VCO via varactor diode D5731 while in RX mode the modulation circuit is disabled by pulling R5732 to a higher level through R5772 10 4 Synthesizer Operation The complete synthesizer subsystem works as follows The output signal of the VCO Q5741 is frequency doubled by doubler D5751 and buffered by Common VCO Buffer Q5751 To close the synthesizer loop the collector of Q5...

Страница 55: ...1 0 Receiver Front End The receiver is able to cover the VHF range from 136 to 174 MHz It consists of four major blocks front end mixer first IF section and IF IC Antenna signal pre selection is performed by two varactor tuned bandpass filters A double balanced schottky diode mixer converts the signal to the first IF at 45 1 MHz Two crystal filters in the first IF section and two ceramic filters i...

Страница 56: ...put levels above 27 dBm 11 3 IF IC U5201 The first IF signal from the crystal filters feeds the IF IC U5201 at pin 6 Within the IF IC the 45 1MHz first IF signal mixes with the second local oscillator LO at 44 645MHz to the second IF at 455 kHz The second LO uses the external crystal Y5211 The second IF signal is amplified and filtered by two external ceramic filters FL5201 FL5202 Back in the IF I...

Страница 57: ...he following stages the ALC loop is able to regulate the output power of the transmitter In receive mode the PA control line PWR CNTL is at ground level and switches off the collector current of Q3641 which in turn switches off the current source transistor Q3642 and the RF transistor Q3511 12 2 PA Stages The following stage uses an enhancement mode N Channel MOS FET device Q3521 and requires a po...

Страница 58: ...pedance of D3551 D3651 in off state does not influence the receiver signal 12 5 Harmonic Filter The transmitter signal from the antenna switch is channelled through the harmonic filter to the antenna connector J3501 The harmonic filter is formed by inductors L3551 L3552 and capacitors C3551 through to C3554 This network forms a low pass filter to attenuate harmonic energy of the transmitter to spe...

Страница 59: ...uency response is controlled by opamp feedback components R0712 and C0711 Opamp U0701 3 compares the power control voltage PWR CNTL divided by resistors R0717 to R0719 with the voltage limit setting VLTG LIMIT SET from the D A converter U0731 13 and keeps the control voltage constant via Q0711 if the control voltage reduced by the resistive divider R0717 to R0719 approaches the voltage of VLTG LIM...

Страница 60: ...alance the high frequency analogue modulation and low frequency digital modulation a 13V positive voltage multiplier a serial interface for control and finally a super filter for the regulated 9 3 volts A voltage of 9 3V applied to the super filter input U3701 pin 19 supplies an output voltage of 8 6 VDC at pin 18 It supplies the VCO Q3741 Q3751 VCO modulation bias circuit R3714 and the synthesize...

Страница 61: ...751 and TX VCO Q3741 is buffered by VCO Buffer Q3760 Mixer Buffer Q3770 and Pre scaler Buffer Q3790 To close the synthesizer loop the collector of Q3790 is connected to the PREIN port of synthesizer U3701 pin 20 The output of the VCO Buffer Q3770 also provides signals for the mixer via VCO MIXER and the PA Buffer Q3780 The pre scaler in the synthesizer U3701 is basically a dual modulus pre scaler ...

Страница 62: ... Via pin 8 MODIN on U3701 the audio signal is applied to both the A D converter low freq path as well as the balance attenuator high freq path The A D converter converts the low frequency analogue modulating signal into a digital code that is applied to the loop divider thereby causing the carrier to deviate The balance attenuator is used to adjust the VCO s deviation sensitivity to high frequency...

Страница 63: ...4 Controller Schematic Diagrams Open Controller Schematic Diagram 1 of 3 5 Open Controller_AUDIO Schematic Diagram 2 of 3 7 Open Controller_IO Schematic Diagram 3 of 3 9 Parts List 6 8 10 Supply Voltage Schematic Diagram 11 Parts List 12 UHF 403 470MHz Schematic Diagrams and Parts Lists Power Control Schematic Diagram 13 Parts List 14 Power Amplifier 5 25W Schematic Diagram 15 Parts List 16 Synthe...

Страница 64: ...List 24 VHF 136 174MHz Schematic Diagrams and Parts Lists Power Control Schematic Diagram 25 Parts List 26 Power Amplifier 5 25W Schematic Diagram 27 Parts List 28 Synthesizer Schematic Diagram 29 Parts List 30 Voltage Controlled Oscillator Schematic Diagram 31 Parts List 32 RX FE Schematic Diagram 33 Parts List 34 RX IF Schematic Diagram 35 Parts List 36 ...

Страница 65: ...2 R0923R0924 R0925 R0926 R0927 R0928 R0929 R0931 R0932 R0933 R0934 R0936 R0937 R0938 R0941 R0942 R0943 R0944 R0945 R0946 R0950 R0951 R0952 R0953 R0954 R0955 R0956 R0957 R0958 R0959 R0960 SH0901 U0831 U0891 U0892 U0901 U0902 U0931 VR0891 VR0901 VR0902 VR0903 VR0904 VR0905 VR0906 VR0931 VR0932 VR0933 VR0934 VR0935 Y0921 Y0922 4 5 1 8 2 3 6 7 5 8 4 1 8 8 1 1 4 4 5 5 1 51 20 10 30 40 1 18 9 16 17 1 54...

Страница 66: ...V 5 6V VR0933 5 6V VR0932 5 6V VR0931 VR0935 5 6V NU 470pF C0934 NU 1K R0931 C0933 470pF NU 0 NU R0952 6 33K R0951 3 J0902 6 NU J0902 3 NU 1uF C0926 NU 5 J0902 4 NU 4 J0902 5 J0902 2 NU 2 J0902 1 NU 1 R0912 0 NU R0913 0 R0911 2 2K NU 1uF NU 5 4 6 C0911 7 100K 100 R0917 R0928 R0956 0 0 0 NU R0955 R0954 R0953 0 NU TP0951 TP0954 TP0953 TP0952 470pF C0903 NU R0943 30K NU 2 2uF NU C0952 R0907 0 NU R094...

Страница 67: ...2 4 6 1 3 2 4 6 1 3 5 5 PB0821 PB0822 2 4 6 1 3 2 4 6 1 3 5 3 5 PB0815 PB0816 2 4 6 1 2 4 6 1 3 5 1 3 5 PB0818 PB0811 2 4 6 2 4 6 1 3 5 6 1 3 5 PB0817 PB0812 2 4 2 4 6 1 3 5 6 1 3 5 PB0813 PB0814 2 4 5 1 200K R0801 200K 3 3K 3 3K 4 R0810 R0804 200K 200K 3 3K 3 3K 0 3 R0808 200K R0803 200K R0805 200K 200K 3 3K R0807 3 3K 200K 200K R0802 C0831 0102726B24 10 1uF R0893 R0894 10 1 2 3 2 2K D0892 2 2K R...

Страница 68: ...40 0662057A73 10k 1 16W 5 R0841 0662057A73 10k 1 16W 5 R0842 0680194M01 10 1W 5 R0843 0680194M01 10 1W 5 Circuit Ref Motorola Part No Description R0851 0662057A73 10k 1 16W 5 R0852 0662057A85 33k 1 16W 5 R0853 R0856 0662057A53 1k5 1 16W 5 R0857 0662057A65 4k7 1 16W 5 R0858 0662057A97 100k 1 16W R0859 0662057A73 10k 1 16W 5 R0860 0662057A73 10k 1 16W 5 R0861 0680194M01 10 1W 5 R0862 0680194M01 10 1...

Страница 69: ...5781 Q0101 Q0102 Q0103 Q0121 Q0123 Q0124 Q0125 Q0141 Q0171 Q0401 Q0450 Q0731 Q0741 Q0742 Q5301 Q5510 Q5520 Q5621 Q5731 Q5741 Q5751 Q5781 R0104 R0105 R0106 R0108 R0109 R0110 R0111 R0112 R0113 R0114 R0115 R0116 R0119 R0120 R0121 R0122 R0123 R0124R 0125 R0126 R0127 R0128 R0129 R0130 R0131 R0132 R0133 R0134 R0136 R0137 R0138 R0139 R0142 R0143 R0144 R0145 R0147 R0170 R0171 R0201 R0202 R0203 R0207 R0208...

Страница 70: ...4 Q0105 Q0106 Q0122 Q0200 Q0411 Q0421 Q0422 Q0431 Q0432 Q0441 Q0481 Q0482 Q0601 Q0611 Q0711 Q0732 Q5201 Q5302 Q5530 Q5540 Q5611 Q5612 Q5771 Q5791 R0100 R0101 R0102 R0103 R0107 R0118 R0150 R0151 R0152 R0153 R0154 R0155 R0161 R0162 R0163 R0164 R0200 R0204 R0205 R0206 R0220 R0221 R0222 R0246 R0411 R0412 R0413 R0414 R0415 R0416 R0418 R0419 R0421 R0422 R0425 R0426 R0428 R0429 R0431 R0432 R0433 R0435 R0...

Страница 71: ...0103 Q0121 Q0123 Q0124 Q0125 Q0141 Q0171 Q0401 Q0450 Q0731 Q0741 Q0742 Q3301 Q3511 Q3641 Q3642 Q3643 Q3742 Q3751 Q3752 Q3760 R0104 R0105 R0106 R0108 R0109 R0110 R0111 R0112 R0113 R0114 R0115 R0116 R0119 R0120 R0121 R0122 R0123 R0124 R0125 R0126 R0127 R0128 R0129 R0130 R0131 R0132 R0133 R0134 R0136 R0137 R0138 R0139 R0142 R0143 R0144 R0145 R0147 R0170 R0171 R0201 R0202 R0203 R0207 R0208 R0209 R0210...

Страница 72: ...L3522 L3601 L3742 L3768 L3773 L3781 L3783 L5202 L5203 Q0104 Q0105 Q0106 Q0122 Q0200 Q0411 Q0421 Q0422 Q0431 Q0432 Q0441 Q0481 Q0482 Q0601 Q0611 Q0711 Q0732 Q3302 Q3521 Q3531 Q3770 Q3780 Q3790 Q5201 R0100 R0101 R0102 R0103 R0107 R0118 R0150 R0151 R0152 R0153 R0154 R0155 R0161 R0162 R0163 R0164 R0200 R0204 R0205 R0206 R0220 R0221 R0222 R0246 R0411 R0412 R0413 R0414 R0415 R0416 R0418 R0419 R0421 R042...

Страница 73: ...70pF C0161 470pF C0162 470pF C0163 470pF C0164 4 2 2 3 R0164 1 0 100 R0134 NU 0 R0122 R0100 4 7K 47K FRACN_CE_5 SPI_DATA_5 SPI_CLK_5 SPI_DATA_SRC_5 4 DAC_CE_5 47K Q0101 47K 14 Y1 13 Y2 12 Y3 Y4 11 10 Y5 9 Y6 7 Y7 A1 2 A2 3 6 CS1 CS2 4 CS3 5 16 VDD 8 GND 15 Y0 U0105 MC74HC138A 1 A0 4 5 14 6 270nH L0131 2 SPI_CLCK_SRC 10K R0116 47K 47K Q0102 47K 2 3 R0115 47K 1 10V D0102 VR0101 10K R0125 4 7K R0131 ...

Страница 74: ...HIP 10nF 50V C0230 2311049J23 CAP TANT CP 10uF 10 6V C0231 2113741F49 CAP CHIP 10nF 50V C0233 2113740F39 CAP CHIP 33pF 5 50V Circuit Ref Motorola Part No Description C0234 2113743E20 CAP CHIP 100nF 16V C0235 2113743A19 CAP CHIP 100nF 16V C0242 2113741F17 CAP CHIP 470pF 50V C0246 2113740F36 CAP CHIP 24pF 5 50V C0251 2113743E20 CAP CHIP 100nF 16V C0252 2311049J23 CAP TANT CP 10uF 10 6V C0253 2311049...

Страница 75: ...D_IN_5 DET_AUDIO_5 10 8 RSSI_5 MC3403 9 47K R0222 U0202 4 C0231 01uF 470pF C0242 1uF C0251 1K C0206 R0205 C0205 1uF 22uF R0202 47K 1uF 10uF C0253 C0252 47 5K R0251 47 5K R0252 100 R0204 R0221 0 U0202 1 2 3 1 13 12 14 MC3403 U0202 3 MC3403 PWR_GND GND 4 VCC 8 MC33072 2 3 1 U0251 3 U0251 1 0 R0240 J0103 7 7 J0103 3 3 6 6 J0103 6 2 5 7 2 J0103 2 6 5 MC3403 U0202 2 R0225 27K 33K R0236 R0241 NU 0 MOD_I...

Страница 76: ...k 1 16W 5 R0210 0662057A49 1k 1 16W 5 R0221 0662057B47 0 1 16W R0222 0662057A89 47k 1 16W 5 Circuit Ref Motorola Part No Description R0223 0662057R92 47 5k 1W 1 R0224 0662057A73 10k 1 16W 5 R0225 0662057A83 27k 1 16W 5 R0231 0662057B47 0 1 16W R0232 0662057A93 68k 1 16W 5 R0233 0662057A73 10k 1 16W 5 R0235 0662057A93 68k 1 16W 5 R0236 0662057A85 33k 1 16W 5 R0241 0662057B47 0 1 16W R0246 0662057A3...

Страница 77: ...5 FLAT_TX_AUDIO EXTERNAL_ALARM 4 14 HOOK SCI_DATA_IN 6 11 FLAT_RX_AUDIO 3 EXTERNAL_PTT 16 EXT_SPKR 2 EXTERNAL_MIC_AUDIO 15 RSSI 9 EMERGENCY_SWITCH IGNITION R0433 J0400 14V VR0421 4 7K 470pF NU NU 14V VR0422 C0421 14V VR0431 0 NU R0416 100 R0413 VR0441 33V 4 7K R0401 270 R0424 R0406 22K 470pF R0426 NU 0 1uF C0423 C0409 4 7K 01uF C0408 R0412 C0407 01uF 4 7K R0450 33K R0449 10K R0452 VR0410 NU 14V VR...

Страница 78: ... 10 PCB Schematic Diagrams and Parts Lists VR0426 4813830A27 14V 5 225MW VR0427 4813830A27 14V 5 225MW VR0431 4813830A27 14V 5 225MW VR0441 4813830A40 SOC23 AUTO SDN VR0451 4813830A15 5 6V 5 225mW Circuit Ref Motorola Part No Description ...

Страница 79: ... SENSE 2 SHUTDOWN 3 C0633 6 5V_TAP 5 ERROR FEEDBACK 7 GND 4 INPUT 8 OUTPUT 1 LP2951CM U0631 LP2951CM C0611 47uF D0611 1 2 3 9V3 1K R0614 1uF SW_B C0602 C0641 1uF 30K R0641 R0642 10K R0632 10 R0631 10 33uF C0632 C0634 47uF R0604 1K C0635 1uF 2 3 C0631 1uF D0631 1 1 2K 1 2K R0603 R0602 7 5K 7 5K C0601 470pF FLT_A _8 0 R0606 VR0641 5 1V ADJ 1 GND 3 ON_OFF 2 VIN 4 VOUT 5 LM2941T U0601 9V3 5V 5V SW_B E...

Страница 80: ...0V C0635 2113743E20 100nF 16V C0641 2113743E20 100nF 16V D0611 4813833C02 DUAL SOT MMBD6100 D0621 4813833C02 DUAL SOT MMBD6100 D0631 4813833C02 DUAL SOT MMBD6100 Q0601 4813824A10 NPN 40V 2A B 50 150 Q0611 4805921T02 DUAL ROHM FMC2 RH R0601 0662057A73 10k 1 16W 5 R0602 0660076E70 FILM 7500 1 1 R0603 0660076E51 FILM 1200 1 1 R0604 0662057A49 1k 1 16W 5 R0605 0662057A69 6k8 1 16W 5 R0606 0662057B47 0...

Страница 81: ... C0723 100pF 10K D0721 1 2 3 D0731 1 2 3 100K R0724 VLTG_LIMIT R0720 100K 100K NU R0737 0 68K R0704 PWR_DETECT 9V3 10K R0703 R0702 47K 68K R0701 100pF C0702 100pF C0701 10 8 VAG MC3403 U0701 4 9 MC3403 U0701 3 13 12 14 MC3403 U0701 2 6 5 7 22K XX XX R0731 NU D0733 XX NU 18K R0705 NU 0047uF C0705 100pF C0732 BIAS_VLTG 47K R0733 SPI_DATA_SRC BIAS_VLTG_7 C0731 1uF SPI_DATA_SRC_7 R0717 33K 0102726B22 ...

Страница 82: ...8M01 NPN DIG 47k 47k Q0741 4880048M01 NPN DIG 47k 47kx Q0742 4805128M27 PNP SOT89 BSR33 R0701 0662057A93 68k 1 16W 5 R0702 0662057A89 47k 1 16W 5 R0703 0662057A73 10k 1 16W 5 R0704 0662057A93 68k 1 16W 5 R0711 0662057A81 22k 1 16W 5 R0712 0662057A37 330 1 16W 5 R0713 0662057A61 3k3 1 16W 5 R0714 0662057A81 22k 1 16W 5 R0715 0662057A81 22k 1 16W 5 R0716 0662057B16 560k 1 16W 5 R0717 0662057A85 33k ...

Страница 83: ...MP 1uF C5530 470nH L5631 D5553 R5611 10K C5556 R5512 10 001uF 6 8pF L5553 18nH R5624 C5554 4 7 K9V1 L5600 51 R5617 10 R5614 4 7 R5527 L5541 18nH R5525 4 7 D5551 NU 01uF C5613 20pF C5513 1K A R5522 18nH L5551 7 66nH L5501 C5512 18pF 100pF C5547 C5541 36pF L5601 NU 4 7pF C5511 L5552 C5542 36pF 18nH C5543 27pF 10 L5532 R5531 PART OF HARDWARE KIT Q5530 MRF5015 68 R5502 XCITER_PA PWR_D PA_RX 1K R5521 D...

Страница 84: ...F25 1nF 50V D5551 4802482J02 DIODE PIN MA COM D5553 4880236E05 DIODE CHIP SCHOTTKY D5601 4813832B35 DIODE TRANSORB D5631 4802482J02 DIODE PIN MA COM L5501 2460591A11 SQUARE COIL 7 66nH 3T L5503 2462587T38 COIL CHIP 22nH 5 L5532 2484657R01 Ferrite Bead L5533 2460591C23 SQUARE COIL 16nH 3T L5534 2484657R01 Ferrite Bead L5541 2460591X01 COIL SQUARE L5542 2484657R01 Ferrite Bead L5551 2460591X01 COIL ...

Страница 85: ...UHF 403 470MHz Synthesizer Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 17 UHF 403 470MHz Synthesizer Schematic Diagram Not Used ...

Страница 86: ... 50V C5722 2311049A07 TANT CP 1uF 10 16V C5723 2109720D14 CER LOW DIST 100nF C5725 2109720D14 CER LOW DIST 100nF C5726 2113741F49 10nF 50V C5727 0811051A19 MTLZ POLY 1uF 5 D5701 4802233J09 DIODE TRIPLE SOT143 RH E5701 2605915V01 SHLD PCB MOUNT 1 R5700 0662057A01 0662057B47 10 1 16W 5 0 ohms R5701 0662057A35 270 1 16W 5 R5702 0662057A35 270 1 16W 5 R5703 0662057A49 1k 1 16W 5 R5705 0662057A89 47k 1...

Страница 87: ...UHF 403 470MHz Voltage Controlled Oscillator Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 19 UHF 403 470MHz Voltage Controlled Oscillator Schematic Diagram ...

Страница 88: ...605915V01 SHLD PCB MOUNT 1 E5732 2602641Y01 SHIELD VCO L5731 2462587T38 COIL CHIP 22nH 5 L5741 2462587T18 COIL CHIP 180nH L5742 2462587T16 COIL CHIP 120nH L5743 2405619V01 COIL HEL MOLDED SMD L5744 2462587T20 COIL CHIP 270nH L5754 2462587T38 COIL CHIP 22nH 5 L5771 2462587T38 COIL CHIP 22nH 5 L5781 2462587T38 COIL CHIP 22nH 5 Q5731 4805921T09 XSTR DUAL ROHM FMG8 Q5741 4813823A05 TSTR N CH RF JFET M...

Страница 89: ...3 C5300 150nH L5402 5V_STAB_2_OUT IF_4 E5202 VCO_MIXER_2 5V_STAB_2_IN NU RX_IF_2 9V3_2 FE_CNTL_VLTG_2 3 PA_RX_2 3 L5409 3 L5408 4 5 L5407 T5402 1 2 3 D5301 C5324 36pF 1 8pF C5302 43pF C5305 5V_STA C5304 43pF 470 NU R5316 VCO_MIXER R5304 3 9K 1 8pF C5329 TP5301 R5315 10 6 2pF C5401 16pF C5402 15nH L5404 L5401 D5401 470nH C5318 51 R5401 10pF E5301 10 R5310 100K NU 16pF C5403 R5309 5 T5401 1 2 3 4 27...

Страница 90: ...40F09 1 8pF 5 50V C5331 2113741F13 330pF 50V C5401 2113740F22 6 2pF 5 50V C5402 2113740F32 16pF 5 50V C5403 2113740F32 16pF 5 50V C5404 2113740F49 82pF 5 50V D5301 4862824C01 VARACTOR CHIP D5302 4862824C01 VARACTOR CHIP D5303 4880154K03 DUAL SCHOTTKY SOT23 D5304 4862824C01 DIODE VARACTOR D5305 4862824C01 DIODE VARACTOR D5401 4880174R01 QUAD SOIC 8 PIN L5302 2462587T23 COIL CHIP 470nH L5401 2462587...

Страница 91: ...UHF 403 470MHz RX IF Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 23 UHF 403 470MHz RX IF Schematic Diagram ...

Страница 92: ...Y5V C5239 2113740F44 51pF 5 50V D5201 4880154K03 DUAL SCHOTTKY SOT23 FL5201 9180098D04 9180098D06 FILTER CER 4 EL 455kHz 12 5kHz FILTER CER 4 EL 455kHz 20 25kHz FL5202 9180097D04 9180097D06 FILTER CER 6 EL 455kHz 12 5kHz FILTER CER 6 EL 455kHz 20 25kHz L5201 2462587N69 CHIP IND 1200 NH L5203 2483411T74 Inductor Chip Shielded L5211 2483411T74 Inductor Chip Shielded Q5201 4882022N70 Transistor NPN R...

Страница 93: ...C0723 100pF 6 8K D0721 1 2 3 D0731 1 2 3 10K R0724 VLTG_LIMIT R0720 100K 100K NU R0737 0 68K R0704 PWR_DETECT 9V3 3 3K R0703 R0702 100K 100K R0701 100pF C0702 100pF C0701 10 8 VAG MC3403 U0701 4 9 MC3403 U0701 3 13 12 14 MC3403 U0701 2 6 5 7 10K XX XX R0731 NU D0733 XX NU 18K R0705 NU 0047uF C0705 100pF C0732 BIAS_VLTG 47K R0733 SPI_DATA_SRC BIAS_VLTG_7 C0731 1uF SPI_DATA_SRC_7 R0717 33K 0102726B2...

Страница 94: ...731 4880048M01 NPN DIG 47k 47k Q0741 4880048M01 NPN DIG 47k 47k Q0742 4805128M27 PNP SOT89 BSR33 R0701 0662057A97 100k 1 16W R0702 0662057A97 100k 1 16W R0703 0662057A61 3k3 1 16W 5 R0704 0662057A93 68k 1 16W 5 R0711 0662057A81 22k 1 16W 5 R0712 0662057A37 330 1 16W 5 R0713 0662057A61 3k3 1 16W 5 R0714 0662057A81 22k 1 16W 5 R0715 0662057A81 22k 1 16W 5 R0716 0662057B16 560k 1 16W 5 R0717 0662057A...

Страница 95: ...VHF 136 174MHz Power Amplifier 5 25W Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 27 VHF 136 174MHz Power Amplifier 5 25W Schematic Diagram ...

Страница 96: ... 24V TRANS SUP 1 5 D3651 4802482J02 PIN DIODE SMD D3657 4880236E05 DIODE HOTCAR SOT 23 J3501 0905902V01 PWR CONNECTOR 2 PIN J3601 0905901V02 BNC CONNECTOR L3501 2462587T12 INDCHIP 56NH 5 LOW L3511 2460591C23 Coil Air Wound Induc 13 85 L3521 2460591C23 Coil Air Wound Induc 13 85 L3522 2484657R01 INDUCTOR BEADCHIP L3531 2460591X01 Coil Air Wound Sq 21NH L3532 2460591L29 Coil Air Wound Induc 16 03 L3...

Страница 97: ...VHF 136 174MHz Synthesizer Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 29 VHF 136 174MHz Synthesizer Schematic Diagram ...

Страница 98: ...41F49 10nF 50V C3722 2311049A07 1uF 10 16V C3723 2109720D14 100nF C3725 2109720D14 100nF C3726 2113741F49 10nF 50V C3727 0811051A19 1uF 5 D3701 4802233J09 TRIPLE SOT143 RH E3702 2605915V01 SHLD PCB MOUNT 1 R3701 0662057A35 270 1 16W 5 R3702 0662057A35 270 1 16W 5 R3703 0662057A49 1k 1 16W 5 R3705 0662057A89 47k 1 16W 5 R3708 0662057B47 0 Ohm R3709 0662057A01 10 1 16W 5 R3711 0662057A25 100 1 16W 5...

Страница 99: ...nH L3761 C3763 01uF R3763 Q3760 R3761 150 1 5K 470 R3762 2DTC143ZK 5 3 1 2 4 Q3742 150 R3786 E3732 L3742 1uH 1 5K R3779 150 R3777 33pF C3736 D3732 C3791 01uF 2 7K R3792 270 270 R3791 C3737 R3776 56pF 270 R3775 39 10 R3774 C3777 C3775 470pF 470pF C3774 L3773 10pF C3773 12pF 56nH 4 7K R3743 C3782 100pF 01uF C3792 L3734 D3754 9V3_4 T45 51 R3794 R3801 22 C3735 470pF L3750 1uH 2 7K R3778 E3731 2 2K R37...

Страница 100: ...3 2462587T30 COIL CHIP 1uH L3734 0105950T45 HELICAL MOLDED FIN 175 L3741 2462587T30 COIL CHIP 1uH L3742 2462587T30 COIL CHIP 1uH L3750 2462587T30 COIL CHIP 1uH L3751 2462587T30 COIL CHIP 1uH L3752 0105950T44 HELICAL MOLDED FIN 175 L3754 2462587T30 COIL CHIP 1uH L3761 2462587T13 COIL CHIP 68nH L3768 2462587T16 COIL CHIP 120nH L3773 2462587T12 COIL CHIP 56nH Circuit Ref Motorola Part No Description ...

Страница 101: ...VHF 136 174MHz RX FE Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 33 VHF 136 174MHz RX FE Schematic Diagram ...

Страница 102: ...13833C02 DUAL SOT MMBD6100 D3301 4805649Q13 VCTR 1SV228 SOT23 D3303 4880154K03 DUAL SCHOTTKY SOT23 D3304 4805649Q13 VCTR 1SV228 SOT23 D3331 4880174R01 QUAD SOIC 8 PIN L3302 2462587T23 COIL CHIP 470nH L3331 2462587T23 COIL CHIP 470nH L3332 2462587T17 COIL CHIP 150nH L3333 2462587T38 COIL CHIP 22nH 5 L3334 2462587T38 COIL CHIP 22nH 5 Q3301 4813827A07 NPN SML SIG MMBR9 Q3302 4813824A17 XSTR PNP40V 2A...

Страница 103: ...VHF 136 174MHz RX IF Schematic Diagram PCB Schematic Diagrams and Parts Lists 3 2 35 VHF 136 174MHz RX IF Schematic Diagram ...

Страница 104: ...V C5239 2113740F44 51pF 5 50V D5201 4880154K03 DUAL SCHOTTKY SOT23 FL5201 9180098D04 9180098D06 FILTER CER 4 EL 455kHz 12 5kHz FILTER CER 4 EL 455kHz 20 25kHz FL5202 9180097D04 9180097D06 FILTER CER 6 EL 455kHz 12 5kHz FILTER CER 6 EL 455kHz 20 25kHz L5201 2462587N69 CHIP IND 1200 NH L5203 2483411T74 Inductor Chip Shielded L5211 2483411T74 Inductor Chip Shielded Q5201 4882022N70 Transistor NPN R52...

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