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Voxtel RX 600 Скачать руководство пользователя страница 23

RX 600 Service Manual Rev. 1.1

Voxtel Technical Documentation
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4

Circuit Schematics

4.1 Memory Circuit

4.2 SIM Card Circuit

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Содержание RX 600

Страница 1: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 1 72 Model RX 600 Service Level Level 1 Level 4 Version 1v1 ...

Страница 2: ...MARKING 21 3 6 RELATED PERFORMANCE 22 4 CIRCUIT SCHEMATICS 23 4 1 MEMORY CIRCUIT 23 4 2 SIM CARD CIRCUIT 23 4 3 SPEAKER RECEIVER 2 IN 1 CIRCUIT 24 4 4 MICROPHONE 25 4 5 LCM BACKLIGHT AND LED CIRCUIT 25 4 6 VIBRATOR CIRCUIT 25 4 7 POWER MANAGEMENT CHARGING CIRCUIT 26 4 8 HEADSET 28 4 9 BLUETOOTH CHIP ANTENNA 28 4 10 KEYPADS 30 4 11 MT6219 30 4 12 ANTENNA SWITCH 32 4 13 AMPLIFIER SKY77328 33 4 14 MT...

Страница 3: ...ACEMENT 52 MAIN BOARD ASSEMBLY BOTTOM 52 MAIN BOARD ASSEMBLY TOP 53 BLOCK DIAGRAM 54 7 3 3 BASEBAND SUBSYSTEM CIRCUIT SCHEMATICS 54 7 4 LEVEL 3 4 TROUBLESHOOTING RF 55 7 4 1 RF SUBSYSTEM 55 7 4 2 KEY COMPONENTS PLACEMENT 56 FRONT END TRANSCEIVER 56 BLUETOOTH 57 BLOCK DIAGRAM 58 7 4 3 RF SUBSYSTEM CIRCUIT SCHEMATICS 59 7 5 LEVEL 4 SERVICE GUIDELINE FOR RF SUBSYSTEM 60 7 5 1 RECEIVER PATH 60 7 5 2 T...

Страница 4: ...64 polyphonic ring tong Also the user can adopt his favorite MP3 music as it ring tong The GPRS function plus WAP2 0 OMA DRM SMS EMS MMS1 1 provide user Internet access in mobile environment Email function enable user read message without interruption 1 2 Specifications Basic Features Dimension Excluding Antenna 103 x 43 x 17 Weight Flex Volume 75 g Volume 75 cc Antenna Internal Talk Time Stand by...

Страница 5: ...d 921 6Kbps USB Support Class Mass storage CDCACM USB Charging Yes Extended Memory Mini SD NAND Flash Speaker 2 in 1 Mechanical Features Appearance Bar type Navigation Key 4ways combined Numeric Key 12 Pads Side Key Yes Strap Hole Yes System Service Support Support Band 900 1800 1900 Speech Codec HR FR EFR CSD Fax Up to 14 4K GPRS Multi slot Class Class 10 GPRS Terminal Class Class B GPRS Coding S...

Страница 6: ...nnel is limited to a small area relative to the total system coverage area a channel may be reused in another cell outside the coverage area of the first By this means several subscribers may operate within the same geographic area without interference with each other on a single channel 2 2 GSM Global System for Mobile communications Unlike former cellular systems GSM uses digital radio technique...

Страница 7: ...d into several cells each containing a cell site base station operating on a given set of channels which interfaces radiotelephone subscribers to the telephone switching system The radiotelephones themselves are capable of operation on any channel in the system allowing them to operate in any cell Due to the low power requirements for communications between radiotelephones in a particular cell and...

Страница 8: ...in the allocated time slot of each TDMA frame The data blocks are modulated onto the carrier using Gaussian Minimum Shift Keying GMSK a very efficient method of phase modulation Each time an information burst is transmitted it may be transmitted on a different frequency This process is known as frequency hopping Frequency hopping reduces the effects of fading and enhances the security and confiden...

Страница 9: ...eceived If this happens during a conversation the call will be lost There may also be small areas within a particular service area where communications may be lost The radiotelephone s identity information is held by its local GSM system in its Home Location Register HLR and Visitor Location Register VLR The VLR contains identity information on all local active radiotelephones Should you roam to a...

Страница 10: ...ow Power amplifier SKY77328 SKYWORKS which is capable of supporting GPRS class12 and quad band application Transceiver IC MT6129 MTK which is GSM850 EGSM DCS PCS quad band design with GPRS class 12 capability Antenna switch C085TK Hitachi metals which is as the duplexer between transmission reception route for EGSM DCS PCS bands RF Clock 26MHz VC TCXO which is the fundamental reference frequency f...

Страница 11: ...rts data encryption algorithm for GSM network operation including A5 1 and A5 2 algorithms Following shows the base band circuit block diagram RF MODULE MT6219 SPEECH AUDI O OUTPUT SPEECH AUDI O INPUT KEYPAD EXTERNAL MEMORY INTERFACE MELODY LCD TCVCXO AFC APC TX I Q RX I Q BPI BSI ALERT ER SIM SUPPLY VOLTAGES JTAG UART IRDA POWER MANAGEMENT CIRCUITRY SERIAL LCD SYSCLK SERIAL LCD MMC SD MS MSPRO US...

Страница 12: ...hium ion Packing vendor HL 宏磊 Major Features List Pluto Supported Bands 900 1800 1900 MHz Tri band GPRS Class Class 12 Circuit Switch Data CSD up to 9 6 kbps Supported Voice Codec AMR EFR FR HR Main LCD Display 1 8 176 R G B 220 65K TFT Antenna Type Embedded Charger Type Switch Loud speaker hands free Yes Polyphonic chords S W Polyphonic up to 64 tones WAP WAP 2 0 EMS R4 Yes Concatenated SMS Yes I...

Страница 13: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 13 72 Caller Groups Yes Calendar Note Appointment Yes Alarm Clock Yes Calculator Yes ...

Страница 14: ...subsystem JPEG codec 2D accelerator Wavetable synthesis MPEG 4 H 263 codec Full speed USB 1 1 High throughput hardware re size capable of tailoring image to arbitrary MMC SD MS and MS PRO host controller DSP recorder User interface 6 row x 7 column keypad scanner 3 UARTs with hardware flow control and speed up to 921600 bps 7 channel auxiliary ADC Six level or edge sensitive external interrupts MT...

Страница 15: ...mic Speaker 87 3 dB at 0 1W 0 1m 1KHz Resonance Frequency Fo 800Hz 160 Hz 1V Rated Input Nom Max for Speaker 0 8W 1 0W Frequency Range Fo 20 kHz Dimension ψ18 4 2T mm Stacked MCP Architecture 128Mbit Flash 32Mbit PSRAM Toshiba TV0057A002AAGD Stacked Multi Chip Product MCP Flash Memory pSRAM and NAND A mixed multi chip package containing a 33 554 432 bit pseudo static RAM and a 134 217 728 bit Nor ...

Страница 16: ...MODULE DIMENSION 34 46 7 2 8 mm EFFECTIVE DISPLAY AREA 28 512 35 64 mm DOT PITCH 56 5 169 5 µm µm APPROX WEIGHT TBD g LCD TYPE 65K colors TFT POWER SUPPLY 2 4 3 3V VIEWING DIRECTION 3 O clock BACK LIGHT LED 3 DRIVER IC Himax 8309 1 3M CMOS Sensor Impac M5118 1 4 1 3M CMOS Module Characteristics High sensitivity in low condition Portable and workable in low voltage ...

Страница 17: ... SW adjusts the ON OFF duty cycle of on chip PWM generator Keypad The keypad is a matrix The columns KEYCOL 6 0 are connect to the keyboard interface of MT6219 and are usually driven low The rows KEYROW 5 0 are connected to the keyboard interface of MT6219 and are internal pulled up When a key is pressed the appropriate row is connected to one of the columns and forced low then causing an interrup...

Страница 18: ...AC mains steady state RMS input current shall be 0 2 Amps maximum at rated input full load condition Inrush Current The AC mains single cycle peak inrush current shall be limited to 30 amps cold and coinciding with the AC mains voltage 264Vac The power supply shall cause no damage with the hot start inrush under 40 degree C ambient temperature Leakage Current Requirement The power supply ground le...

Страница 19: ... shall maintain output voltage regulation subject to the conditions listed The transient response measurement shall be made with a load changing repetition rate of 100 Hz The load slew rate shall not be greater than 0 1 A us During transient steps the regulation must be maintained within the limits of figure Battery Packing Battery cell NEC Li Ion 700mAh NEC cell PCM Description Specification Unit...

Страница 20: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 20 72 Operating Temperature Range 0 45 20 60 Charge Discharge Storage Temperature Range 20 60 Within 6 months Capacity recovery rate 85 ...

Страница 21: ...upling loss Stability margin GSM 11 10 30 7 1 Distortion Sending 3 5 CE marking Safety EN60950 EMC ETS300 342 1 EN55022 EMI ITE Radio Disturbance Characteristic EN61000 4 3 RS Radiate Radio Frequency and Electromagnetic Field Immunity Test EN61000 4 2 ESD Electrostatic Discharge Immunity Test EN61000 4 4 EFT Electrical Fast Transient Burst Immunity Test EN61000 4 6 CS Immunity to Conducted Disturb...

Страница 22: ...Vbat 3 4V Charging mode Maximum Charge Current 700mA Maximum Charge Voltage 5 6V Maximum Charge Time less than 3 Hours Power consumption Talk mode Maximum Current 301mA GSM band PO 32dBm Maximum Current 211mA DCS band PO 29dBm Sleep mode Maximum Current 4 46mA paging rate 2 Maximum Current 2 77mA paging rate 9 GPRS mode 1 TX slot Maximum Current 301mA GSM band PO 32dBm Maximum Current 211mA DCS ba...

Страница 23: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 23 72 4 Circuit Schematics 4 1 Memory Circuit 4 2 SIM Card Circuit ...

Страница 24: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 24 72 4 3 Speaker Receiver 2 in 1 circuit ...

Страница 25: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 25 72 4 4 Microphone 4 5 LCM Backlight and LED Circuit 4 6 Vibrator Circuit ...

Страница 26: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 26 72 4 7 Power Management Charging Circuit ...

Страница 27: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 27 72 ...

Страница 28: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 28 72 4 8 Headset 4 9 Bluetooth Chip Antenna ...

Страница 29: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 29 72 ...

Страница 30: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 30 72 4 10 Keypads 4 11 MT6219 ...

Страница 31: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 31 72 ...

Страница 32: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 32 72 4 12 Antenna Switch ...

Страница 33: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 33 72 4 13 Amplifier SKY77328 4 14 MT6129 SAW Filters ...

Страница 34: ...e installation of the driver 2 There will be a directory US 001 USB To Serial Cable V1 1 in the provided CD Please run the installation program Driver Installer exe in the 98 xp directory if your OS is windows 98 xp We don t support other OS now 3 After install the driver of this USB2COM cable The program will ask you to restart the computer 4 After re start the computer and the setup procedure pl...

Страница 35: ...ation between PC and Castor It s for loading software into Castor You can download it from Voxtel FTP site The installation procedure is simply to put all files under same folder Double click the executive file to activate the tool Then you will see the GUI popped up as followed picture Status Bar Progress Bar Put all files under same folder ...

Страница 36: ...Voxtel Technical Documentation 36 72 5 4 How to Download Software Before you begin using the tool you must set your COM port and Baud Rage first The tool will show the available COM port in the PORT Baud Rate like following figures ...

Страница 37: ... have to select the correct data files You can download data files fromVoxtel FTP site Remember to put all data in same folder Next you need to click FlieOpenLinkMap on the GUI After selecting the scatCASTOR txt the tool will parse the contents of the file including the segment and Address Right after that click the Download button to get the data transferring process ready ...

Страница 38: ...Rev 1 1 Voxtel Technical Documentation 38 72 After clicking the download button on the GUI you need to activate the downloading process by pressing the END KEY It would take several minutes to complete whole process END KEY ...

Страница 39: ...conductive wrist strap is used while performing these procedures on electronic units NOTE Many of the integrated circuit devices used in this equipment are vulnerable to damage from static charges Ensure that adequate static protection is in place when handling shipping and servicing the internal components of this equipment 6 2 Recommended Tools Anti Static Mat Ground Cord included Anti Static Wr...

Страница 40: ...l Rev 1 1 Voxtel Technical Documentation 40 72 6 3 Disassembly Procedure The following set of diagrams will demonstrate the correct sequence and action to disassembly RX600 The first picture shows the major parts of RX600 ...

Страница 41: ...h Step2 Remove the batter door Take out the battery SIM card and memory card if any Step3 Unscrew 2 screws on Case 2 Step4 Use a blade to separate Case1 and Case2 First to use a blade to separate it from the charger connecter of the Case1 and Case2 Then use a blade to separate the left and right of the Case 1 and Case2 ...

Страница 42: ...Service Manual Rev 1 1 Voxtel Technical Documentation 42 72 Step5 After separating the Case 1 and Case2 the parts will be as below And to protect the LCD within sticking LCD film Step6 Unscrew 2 screws on PCBA ...

Страница 43: ...Voxtel Technical Documentation 43 72 Step7 Use a blade to separate PCBA and Case2 Use a blade to open the right hook of the PCBA and Case2 and the open the left Step8 Dissemlbe the vibrator To take the vibrator out within a sticker ...

Страница 44: ...on 44 72 Step9 To disassemble the Antenna cover At first to loose the right side hook and then to loose the other side hook Step10 To reomve the LCM To remove the copper foil carefully and to unleash the LCM FPC connector Then separate the LCM from PCBA Step11 ...

Страница 45: ...e shielding case and then to unleash the DSC FPC connector Step12 To resolder the microphone Step12 To resolder the Vibrator 6 4 Assembly Procedure Once the handset is disassembled and the repair is carried out the unit must then be reassembled It is carried out in the exact reverse sequence as the disassembly ...

Страница 46: ...semble the handset Depress the PWR button if handset turns on and stays on disconnect the DC power source and reassemble the handset with a new main board assembly If the unit still cannot turn on after reassembled with a new main board try to replace a known good FPC flexible printed circuit a Antenna defective Check connection between the antenna and the main board assembly If the connection is ...

Страница 47: ... defective Check connection from the earpiece to the main board assembly If the connector is not fault proceed to b b 2 in 1 loudspeaker defective Temporarily replace the speaker assembly with a known good one Ensure good connection by placing a call and verify the improvement in earpiece audio If fault is cleared reassemble the handset with the good assembly If not proceed to c 6 Received audio f...

Страница 48: ...he new upper board assembly 9 Internal charger not working Faulty charger circuit on main board assembly Insert a selection of batteries to verify If the fault is still present replace a known good main board assembly Verify that the fault has been cleared and reassemble the handset with the new main board assembly a Headset plug not pushed fully home Ensure the headset plug is fully seated in the...

Страница 49: ...hen you press one key the corresponding characters on the display should disappear After all characters disappear it will go back to factory mode menu Echo Loop Headset In echo loop mode it s for testing the performance of microphone and receiver Castor s loudspeaker is a 2 in 1 speaker After entering echo loop mode please give a puff toward the microphone Check if there is any sound coming out of...

Страница 50: ... the DSC is working fine RTC Real Time Clock helps to keep the handset internal clock ticking even it s turned off RTC mode is for testing its function After entering the RTC mode the handset will instantly power off In few seconds the handset will prompt a message Power On Please press left soft key to turn on the handset If it can power on again without problem the RTC is working fine ...

Страница 51: ...SIC GSM GPRS Baseband chipset including MT6219 and MT6305 Microprocessor MT6219 includes ABB analog baseband and DBB digital baseband It supports EGSM DCS PCS Power management IC MT6305 Memory IC MCP Multi Chip Package Toshiba TV0057A002AAGD Stacked Multi Chip Product MCP Flash Memory pSRAM and NAND RTC Real Time Clock Coin Battery Seiko XH414H Voltage Regulator pMOSFET Vishay Si7705DN Digital Cam...

Страница 52: ...ment Main Board Assembly Bottom Item Description 1 CMOS connector CN602 2 Phone Jack J501 3 SIM card connector J502 4 RSMMC card Connector CN801 5 RF CONNECTOR CN1 6 18 pin IO connector J601 7 MCP 128 32 Mb U401 8 MT6219 U402 9 Power Management IC U502 10 B to B connector J801 11 P MOSFET U503 ...

Страница 53: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 53 72 Main Board Assembly Top Item Description 1 White LED D501 D507 ...

Страница 54: ...VCXO AFC APC TX I Q RX I Q BPI BSI ALERT ER SIM SUPPLY VOLTAGES JTAG UART IRDA POWER MANAGEMENT CIRCUITRY SERIAL LCD SYSCLK SERIAL LCD MMC SD MS MSPRO USB AUXADC 1 2 3 4 5 6 7 8 9 0 CMOS SENSOR HIFI STEREO OUTPUT FM STEREO RADIO INPUT DEBUGGER PWM NAND FLASH LCD 8 BIT PARALLEL INTERFACE FLASH SRAM PSRAM IMAGE INPUT 7 3 3 Baseband Subsystem Circuit Schematics Please refer to Chapter 4 ...

Страница 55: ...ng GPRS class12 and quad band application Antenna switch C085TK Hitachi metals which is as the duplexer between transmission reception route for EGSM DCS PCS bands Saw filter FUJITSU B28E 942 5MHZ GSM900 FUJITSU B2BG 1842 5MHZ GSM1800 FUJITSU B2BE 1960MHZ GSM1900 RF clock reference 26MHz VC TCXO which is the fundamental reference frequency for transceiver PLL synthesizer and the fundamental freque...

Страница 56: ...1 1 Voxtel Technical Documentation 56 72 7 4 2 Key Components Placement Front end Transceiver Item Description 1 SAW filter U103 U105 2 Power Amplifier U101 3 Transceiver U201 4 VC TCXO U202 5 Car kit J102 6 Antenna Switch U102 ...

Страница 57: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 57 72 Bluetooth Item Description 1 CSR BT IC U301 2 XTAL Y301 3 BALUN filter U304 4 Chip Antenna U306 5 LDO REG U305 ...

Страница 58: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 58 72 Block Diagram 1 GSM GPRS Transceiver 2 Bluetooth ...

Страница 59: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 59 72 7 4 3 RF Subsystem Circuit Schematics Please refer to Chapter 4 ...

Страница 60: ...ed test equipments are oscilloscope DC source RF signal generator and spectrum analyzer 7 5 1 Receiver Path When the RX600 receives signals from antenna the RF signals will first encounter the antenna switch C085TK Hitachi The antenna switch will route the received signal to corresponding SAW filters FUJITSU B28E B2BE B2BG After filtering the received signal will be feeded into transceiver MT6129 ...

Страница 61: ...band PCS DCS for 200KHz F RF band EGSM for 200KHz F 2 RF CH VCO CH VCO VC TCXO If VC TCXO is the suspected root cause please check that it s output frequency and Vcc to verify In normal circumstance you will see C244 s voltage is 2 7V and the output frequency of VCTCXO should be26MHz and Vp p is 1V If not recommend replacing U202 1st IF 2nd IF C244 2 7V Output 26MHz Oscilloscope ...

Страница 62: ...as followed Signal Generator un modulated signal EGSM Frequency 950MHz Amplitude 60dBm DCS Frequency 1850MHz Amplitude 60dBm PCS Frequency 1950MHz Amplitude 60dBm Spectrum Analyzer EGSM Central Freq 950MHz Span 2MHz RBW 100KHz VBW 100KHz DCS Central Freq 1850MHz Span 2MHz RBW 100KHz VBW 100KHz PCS Central Freq 1950MHz Span 2MHz RBW 100KHz VBW 100KHz A B C D E F G H I RF test signal input here ...

Страница 63: ...5dBm 950MHz Please check replace C134 or C125 Test point D 64dBm 1850MHz Please check replace U102 or C132 Test point E 65dBm 1850MHz Please check replace U104 or L132 DCS Test point F 65dBm 1850MHz Please check replace C136 or C137 Test point G 64dBm 1950MHz Please check replace U102 or C127 Test point H 65dBm 1950MHz Please check replace U105 or L133 PCS Test point I 65dBm 1950MHz Please check r...

Страница 64: ... oscilloscope and a PC with RF tool MauiMETA The META user interface is like below If the defective PCBA can t pass the test please re solder or replace MT6129 1 Open META Configure the environment setting 2 Choose CONTINUOUS RX U201 Pin 43 44 45 46 should have 67KHz sinusoidal signal Vp p 2V Select corresponding BAND ARFCN and GAIN 3 ...

Страница 65: ... SKY77328 and an antenna switch Hitachi 085TK A 26MHz VC TCXO TXC 7P26000123 provides the frequency reference MT6129C is not just only receiving signals but also transmitting signals MT6129C s transmitter is an OPLL Optical Phase Locked Loop structure It up converts I Q signals from baseband to RF frequency Transmitter Path MT6129C Differential I Q signals VBAT VC TCXO 26MHz ...

Страница 66: ...ble below Please check Pin 1 3 and 15 first Pin Pin Name Voltage Level Location Signal Type 1 VCCTXVCO 1 5V C222 Burst 3 VBAT1 3 8V B231 Continuous 4 VCCRF 2 7V C223 Continuous 15 VBAT2 3 7V B231 Continuous 16 VCCRFBUF 2 8V C235 Continuous 21 VCCRFVCO 2V C239 Continuous 24 VCCRFCP 2 8V C249 Continuous 25 VCCSYN 2 8V C249 Continuous 30 VCCVCXO 2 8V C243 Continuous 33 VCXOFRQ 2 8V C235 Continuous 35...

Страница 67: ...ransceiver It s a high current consumption and moisture sensitive component Antenna Matching Circuit PA Output PA Input Vramp RX Path Front End RF in Vapc BS PA_EN VBat Name RF input 0 6dBm RF 0 2 2 1V Analo L GSM900 H DCS PCS Logic Enable Typ 2 8V Logic Voltage of Battery Typ 3 8V Suppl y Description Type PA enable Vapc GSM RF IN DCS PCS RF IN GSM RF Out DCS PCS RF Out ...

Страница 68: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 68 72 085TK is a tri band antenna switch which has 3 RX ports and 2 TX ports VC1 VC2 VC3 ...

Страница 69: ...nce of MT6129C Transceiver or SKY77328 Power Amplifier we need to re calibrate the RF subsystem AutoCal_Meta is used for calibration It requires an Agilent 8690 a Keithly DC source and a PC with AutoCal_Meta You also need a RS232 cable for connection between PC and handset Its user interface is like below ...

Страница 70: ...uipments Spectrum Analyzer Oscilloscope and PC Software Bluesuite BlueCore Handphone CW generator both are CSR software TX measurement Open BlueCore Handphone CW generator It will activate the Blue IC s TX measurement mode In the Frequency selection please select 26MHz as the hand phone reference clock is 26MHz The expected value is listed below PC Spectrum Analyzer Oscilloscope USB RS232 LPT port...

Страница 71: ...select Crystal frequency trim Change the decimal 0 63 and then click set Close the prompt window and then proceed to TX measurement to check all test points If the measured value is beyond the expected value change the decimal again and proceed the TX measurement again Pin Expected Value C311 C312 3V DC L326 3dBm 2441MHz U302 0dBm 2442MHz C343 C344 350mVpp 26MHz 1 2 3 ...

Страница 72: ...RX 600 Service Manual Rev 1 1 Voxtel Technical Documentation 72 72 8 Appendix Exploded View PCB Assembly Placement ...

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