Hytera PD355 Service Manual
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Hytera PD355 Service Manual

Hytera PD355 Service Manual

Digital portable radio
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PD355
Digital Portable Radio
SERVICE MANUAL

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Summary of Contents for Hytera PD355

  • Page 1 PD355 Digital Portable Radio SERVICE MANUAL...
  • Page 3 Preface This manual describes the information related to the product repair. It is intended for use by qualified technicians only. To repair the product properly, please read this manual carefully before repairing. This manual is applicable to the following product: PD35X Digital Portable Radio (X may represent 2, 5, 6 or 8)
  • Page 4 Copyright Information Hytera is the trademark or registered trademark of Hytera Communications Corporation Limited (the Company) in PRC and/or other countries or areas. The Company retains the ownership of its trademarks and product names. All other trademarks and/or product names that may be used in this manual are properties of their respective owners.
  • Page 5 Documentation Information Conventions Icon Conventions Icon Description Indicates information that can help you make better use of your product. Note Indicates references that can further describe the related topics. Caution Indicates situations that could cause data loss or equipment damage. Warning Indicates situations that could cause minor personal injury.
  • Page 6 Ua (400‑440 MHz)

  • Page 7: Table Of Contents

    Ua (400‑440 MHz) Contents Contents 1. Product Controls ..........................1 2. Disassembly and Assembly ........................ 3 3. Exploded View and Packaging Guide ....................5 3.1 Exploded View ..........................5 3.2 Packaging Guide ..........................7 4. Specifications ............................8 5. Circuit Description ..........................10 5.1 Baseband ............................
  • Page 8 Ua (400‑440 MHz) Contents 10.7 Transmitter Circuit ........................41 11. Schematic Diagram .......................... 42 12. Parts List ............................52...

  • Page 9: Product Controls

    Ua (400‑440 MHz) Product Controls 1. Product Controls Part Name Part Name PTT (Push-to-Talk) Key Cancel/Return Key SK1 (Side Key 1) Volume +/Right Key Up Key Power On/Off/ESC Key OK/Menu Key P3 Key Volume -/Left Key Down Key Call Key Strap Hole P1 Key RF Test Port (for technician only)
  • Page 10 Ua (400‑440 MHz) Product Controls Part Name Part Name Microphone Belt Clip LCD Display Battery Latch...

  • Page 11: Disassembly And Assembly

    Ua (400‑440 MHz) Disassembly and Assembly 2. Disassembly and Assembly This section is designed to introduce the way to disassemble the radio. To assemble the radio, do vice versa. Step 1 Remove the battery. 1. Slide the battery latch towards the top of the radio to unlock the battery cover. 2.
  • Page 12 Ua (400‑440 MHz) Disassembly and Assembly 1. Remove the self-tapping screw securing the main board. 2. Remove the speaker wire connector. 3. Remove the FPC connector of the programmable keys. 4. Remove the main board.

  • Page 13: Exploded View And Packaging Guide

    Ua (400‑440 MHz) Exploded View and Packaging Guide 3. Exploded View and Packaging Guide Exploded View...
  • Page 14 Ua (400‑440 MHz) Exploded View and Packaging Guide Parts list: Part No. Description Qty. Part No. Description Qty. 7500161000000 Crystal sponge pad 6002110000000 PTT key cover 6101013100000 Waterproof ring for battery 6203519000000 Decoration bar cover 6101018100000 Silicone rubber pad for 6101015100000 PTT key (silicone rubber) battery 7102008020100 Self-tapping Screw...

  • Page 15: Packaging Guide

    Ua (400‑440 MHz) Exploded View and Packaging Guide Packaging Guide...

  • Page 16: Specifications

    Ua (400‑440 MHz) Specifications 4. Specifications General Frequency Range 400–440 MHz Channel Capacity Channel Spacing 25 kHz/12.5 kHz  Rated voltage: 3.7 V Operating Voltage  Extreme voltage: 3.15–4.2 V Battery 2000 mAh Li-Ion battery Battery Life (5-5-90 Duty Cycle, ...
  • Page 17 Ua (400‑440 MHz) Specifications Rated Audio Power Output 0.4 W (8Ω load) Rated Audio Distortion ≤5% Transmitter Power Output 3 W/ 1.5 W  -36 dBm<1 GHz Conducted/Radiated Emission  -30 dBm>1 GHz  ±2.5 kHz@12.5 kHz Modulation Limiting  ±5.0 kHz@25 kHz ...

  • Page 18: Circuit Description

    Circuit Description Ua (400‑440 MHz) 5. Circuit Description Baseband Section PLL_CLK EEPROM 24FC512-I/SM PLL_STB PLL_DATA V_CHARGER PLL_LD ext_mic ext_spk AF_MUTE STM32F101VET6 12MHZ RSSI EXT_interface BAT_DET APC/TV 3V3D RESET ADJ_CRY USART port 3V3D Volume adjust 3V0D 3V0A SCT3928 S0DI FLASH_DO S0FS IN2L FLASH_CE VOICE...
  • Page 19 Ua (400‑440 MHz) Circuit Description DTC114YE PWR- KEY_ DET After inserted the charger , wake POWER_ KEY- U309 up the walky- talky POWER_ON XC 6118N28 AMR-G PWR_ON To keypad( hardware connectted ) VBUS POWER_ON U304 3V FGU Read charger status POWER_ KEY- RP102Z301D To PLL...
  • Page 20 Ua (400‑440 MHz) Circuit Description When you long press the Power On/Off/ESC key, POWER_KEY- and POWER_ON are at high level, and the radio powers on. After power-on, PWR_ON goes to high level, and PWR-KEY_DET goes to low level. During power-off, POWER_KEY- is at low level, while PWR-KEY_DET is at high level. The system detects power-off procedure via PWR-KEY_DET and implements the power-off procedure.

  • Page 21: Control Module

    Ua (400‑440 MHz) Circuit Description 5.1.2 Control Module PLL_ CLK EEPROM 24FC512-I/ SM PLL_ STB PLL_ DATA V_ CHARGER PLL_LD ext_mic ext_spk AF_ MUTE STM32F101VET6 12 MHZ RSSI EXT_ interface BAT_ DET APC/TV 3V3D RESET ADJ_ CRY USART port 3V3D Volume adjust 3V0D...

  • Page 22: Audio Module

    Ua (400‑440 MHz) Circuit Description The radio uses STM32F101VET6(MCU) and SCT3928(Baseband IC). STM32F101VET6 is the main controller unit, while SCT3928 is the baseband processor chip, which is used for analog and digital modulation/demodulation and digital voice encoding/decoding. MCU communicates with SCT3928 via HPI BUS, connects to 512K EEPROM via I2C BUS and controls the LCD display via SPI BUS.

  • Page 23: Rf Section

    Ua (400‑440 MHz) Circuit Description Finally, the audio signal is output to audio amplifier MAX9716EUA for amplifying via the HPL/R port of TLV320AIC3204 to drive the speaker.  TX path The audio signal received by the MIC is divided into two paths: one path is processed and sent to MCU for VOX sampling;...
  • Page 24 Ua (400‑440 MHz) Circuit Description Buffer amplifier Interstage isolation Pre-Driver Driver/Final Stage TX/RX switch Low-pass filter Tx / Rx Low - pass π-type T / R Drive - stage Final - stage PA match buffer Pre - Driver Switch Filter Pre - Driver 1 Pre - Driver 2 attenuator...

  • Page 25: Receiver Circuit

    Ua (400‑440 MHz) Circuit Description 5.2.2 Receiver Circuit The receiver circuit mainly comprises the RF band-pass filter, low-noise amplifier, mixer, IF filter, IF amplifier and IF processor. S21≤1.5dB Ripple Inband≤ 1dB Stop band attenuation: -30dBc 3VFGU 3Vdc Lo Amp Low-Noise Amp 2SC3356 Lo input level≥7dBm VCTCXO...

  • Page 26: Fgu

    Circuit Description Ua (400‑440 MHz) Receiver Back-end The processed first IF signal is sent to IC BA4116 for second mixing during which the second harmonic of the PLL crystal is selected as the second LO signal, mixed and converted to the 450 kHz second IF signal. After that, the second IF signal goes through the 450 kHz ceramic filter to filter out the spurious signal, and it is amplified afterwards with its frequency discriminated.
  • Page 27 Ua (400‑440 MHz) Circuit Description VC_TXCO Mod_2 Fc=19.2MHz A=0.1Vpp~2.0Vpp PLL Sky72310 RF feedback LPF 3.0v for core&Vp FGU Close Loop: Compare frequence:4.8MHz Prescaler Level：50~250mVpp S21=-3dB PN: ≤-80 (dBc/Hz)@1KHz Fpass=500MHz PN: ≤-112 (dBc/Hz)@12.5KHz Fstop=800MHz PN: ≤-120 (dBc/Hz)@25KHz Astop=40dB PN: ≤-136 (dBc/Hz)@100KHz PN: ≤-145 (dBc/Hz)@1MHz Two Point modulation：...

  • Page 28: Troubleshooting Flow Chart

    Ua (400‑440 MHz) Troubleshooting Flow Chart 6. Troubleshooting Flow Chart Control Circuit 6.1.1 No Display upon Power-on or Abnormal Display No display upon power-on or abnormal display [1] Check whether the battery voltage The voltage of TP304 is too low or whether the contact (V_BAT) is normal? [2] spring plate works well The POWER_KEY- signal...

  • Page 29: No Voice Output By Speaker

    Ua (400‑440 MHz) Troubleshooting Flow Chart 6.1.2 No Voice Output by Speaker No voice output by speaker Check the speaker SPK+ and SPK- output and its connection normally? U802 has audio signal U802 is abnormal or U802 enable signal inputs (C810 and C820)? damaged is normal? Check D8005 and...

  • Page 30: No Modulation Signal In Transmission

    Ua (400‑440 MHz) Troubleshooting Flow Chart 6.1.3 No Modulation Signal in Transmission No modulation signal in transmission MIC inputs normally? Check MIC CODEC audio input Check whether U401 (MICN2/MICP2) is normal? works normally Refer to FGU diagram CODEC output (R202, for repairing R204) is normal? information...

  • Page 31: Receiver Circuit

    Ua (400‑440 MHz) Troubleshooting Flow Chart Receiver Circuit No receiving 3VRT 3V_RX_RF outputs Check U306 outputs normally?[2] normally?[1] The static working Check Q6005 point of Q6005 is normal?[3] The static working Check Q6006 point of Q6006 is normal?[4] Check Q611 Input IF signal via z6001 to Second LO is normal?[6] and peripheral...

  • Page 32: Transmitter Circuit

    Ua (400‑440 MHz) Troubleshooting Flow Chart Description of Normal Situations: [1] Output voltage by Q6004 Pin 3 is about 3 V. [2] Output voltage by U306 Pin 5 or input voltage by Q6004 Pin 4 is about 3 V. [3] Check the collector voltage and base voltage of Q6005 when the circuit is not receiving signals. Normally, the voltage is about 0.754 V at pole B, about 2.728 V at pole C and 0 V at pole E.
  • Page 33 Ua (400‑440 MHz) Troubleshooting Flow Chart No power output Check the Power supply works power supply normally?[1] circuit. VGG is APC/TV1 is Check the MCU normal?[2] normal?[3] output circuit. Replace Q6008 3V_TX_RF TX_En is is normal?[5] normal?[5] TX_En 3.3V is Check the power normal?[4] supply circuit.
  • Page 34 Ua (400‑440 MHz) Troubleshooting Flow Chart [1] Voltage of the power supply is about 3.7 V. [2] For low power, VGG is 1.2 to 1.4 V; for high power, VGG is 1.4 to 1.6 V. [3] For low power, TV/APC is 1.4 to 1.6 V; for high power, TV/APC is 2.0 to 2.2 V. [4] TX_En is about 3 V.

  • Page 35: Fgu Circuit

    Ua (400‑440 MHz) Troubleshooting Flow Chart FGU Circuit FGU check 3VFGU, VCC_CP and Check the power supply 3VOA_FGU_PLL are circuit. normal? Q8002, Q8003, Q8005, Q8004/Q8008 are Replace Q8004 and VCO oscillates? Q8009 and Q8011 are normal?[2] Q8008. normal?[1] Replace Q8002, Check Q8004, Q8008 Q8003, Q8005, Q8009 and peripheral...
  • Page 36 Ua (400‑440 MHz) Troubleshooting Flow Chart 1.63 V at pole B. During receipt, the voltage is about 1.17 V at pole E of Q8004, about 2.83 V at pole C and about 1.88 V at pole B. [3] The CV value varies with frequencies. Generally, it is above 0.55 V and below 2.4 V. [4] L8018/L8045 is on.

  • Page 37: Interface Definition

    Ua (400‑440 MHz) Interface Definition 7. Interface Definition The definition of each pin is described as below. Interface Pin No. Signal Function VBUS RXD1 TXD1 J5004 TD_IO SPK+ MIC+ J800...

  • Page 38: Tuning Description

    Ua (400‑440 MHz) Tuning Description 8. Tuning Description Tools  Radio communication test sets: Aeroflex 3920 and HP8921  3 A/ 10 V power supply  Multimeter  Tuner software Tuning Procedure 8.2.1 Tuning a radio After re-assembling the radio, you need to tune it with the Tuner software. The specific operations are described in the table below.
  • Page 39 Ua (400‑440 MHz) Tuning Description Items Method Connect the antenna connector of the radio to HP8921, and set HP8921 to TX test mode. Set the HP8921 parameters as follows: IF Filter: 230 kHz Filter1: <20 Hz HPF Filter2: <15 kHz LPF Transmit-to-Deviation De-Emphasis: OFF Open the Tuner software and go to “TUNE_DATA ->...
  • Page 40 Ua (400‑440 MHz) Tuning Description Items Method is input via the keyboard. If the value is adjusted via the vernier, skip this step. Click the “Transmit Off” button. Click the dialog box below LOW_PORT. Set AFGen1 Freq to 1.4 kHz on HP8921. 10.

  • Page 41: Testing A Radio

    Ua (400‑440 MHz) Tuning Description Items Method step. 8.2.2 Testing a radio After tuning the radio, it is required to test the digital RF signal. Transmitting Step 1 Open the Tuner software and go to “TEST -> TX -> Transmit BER (0.153)”. Step 2 Select the channel to be tested and select “High Power”...

  • Page 42: Pcb View

    9. PCB View Main Board_Top Layer Main Board_Top Layer...
  • Page 43 Main Board_Bottom Layer...

  • Page 44: Block Diagram

    Ua (400‑440 MHz) Block Diagram 10. Block Diagram 10.1 General Radio Diagram McBSP2 MCSI1 GPIOs SPI2 FLASH BB Processor SCT3928 JTAG UART1 12.0MHz McBSP1 Security XTAL OMAP132 I2C1 STM32F100VD MCLK 19.2MHz GPIOs Key Board UART3 UART2 GPIOs GPIOs Audio Codec TLV3204 MPUIO/ SPI3...

  • Page 45: Rf Circuit

    Ua (400‑440 MHz) Block Diagram 10.2 RF Circuit 3V_TX_RF Current 3V_TX_RF sensor 3V7_PA Tx/Rx 2SK3078 Switch 2SC3356 BFQ540 RFM03U3CT Match Match Match Match Harmonic RFM03U3CT Filter PreDriver 1 PreDriver 2 3V_TX_RF VCO_L/H_En Active Bais_Dow Filter n _Circuit 3V_FGU MOD_VCO V_BAT EM6M2 BIAS_DOWN VCO_L/H_En...

  • Page 46: Baseband Circuit

    Ua (400‑440 MHz) Block Diagram 10.3 Baseband Circuit PLL_CLK EEPROM 24FC512-I/SM PLL_STB PLL_DATA V_CHARGER PLL_LD ext_mic ext_spk AF_MUTE STM32F101VET6 12MHZ RSSI EXT_interface BAT_DET APC/TV 3V3D RESET ADJ_CRY USART port 3V3D Volume adjust 3V0D 3V0A S0DI SCT3928 FLASH_DO S0FS IN2L FLASH_CE VOICE Protoccol Security Key...

  • Page 47: Power Supply Circuit

    Ua (400‑440 MHz) Block Diagram 10.4 Power Supply Circuit DTC114YE PWR- KEY_ DET After inserted the charger , wake POWER_ KEY- U309 up the walky- talky POWER_ON XC 6118N28 AMR-G PWR_ON To keypad( hardware connectted ) VBUS POWER_ON U304 3V FGU Read charger status POWER_ KEY- RP102Z301D...

  • Page 48: Fgu Circuit

    Ua (400‑440 MHz) Block Diagram 10.5 FGU Circuit VC_TXCO Mod_2 Fc=19.2MHz A=0.1Vpp~2.0Vpp PLL Sky72310 RF feedback LPF 3.0v for core&Vp FGU Close Loop: Compare frequence:4.8MHz Prescaler Level：50~250mVpp S21=-3dB PN: ≤-80 (dBc/Hz)@1KHz Fpass=500MHz PN: ≤-112 (dBc/Hz)@12.5KHz Fstop=800MHz PN: ≤-120 (dBc/Hz)@25KHz Astop=40dB PN: ≤-136 (dBc/Hz)@100KHz PN: ≤-145 (dBc/Hz)@1MHz Two Point modulation：...

  • Page 49: Receiver Circuit

    Ua (400‑440 MHz) Block Diagram 10.6 Receiver Circuit Low-pass Filter T/R SW Lo Amp 2SC3356 Lo OSC VC TCXO Double Circuit 19.2MHz 2SC5108 Low-Noise Amp AT-41511 BPF2 BPF1 BA4116 Mixer IF Filter Pi Attenuator IF Processor IF Amp HSMS-2827 Tuned Voltage 38.85MHz 2SC5108...
  • Page 50 Ua (400‑440 MHz) Block Diagram 10.7 Transmitter Circuit Buffer amplifier Interstage isolation Pre-Driver Driver/Final Stage TX/RX switch Low-pass filter Tx / Rx Low - pass π-type Drive - stage Final - stage PA match T / R buffer Pre - Driver Switch Filter Pre - Driver 1...
  • Page 51 TP104 TP104 C113 C113 D104 D104 C114 C114 D105 D105 PT-036-D1S PT-036-D1S Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. 470p 470p 470p 470p Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360...
  • Page 52 0.1u R213 R213 R214 R214 1V2D 1V2VDD 4.7K 4.7K 4.7K 4.7K U203 U203 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Security Key Security Key L204 L204 C226 C226 Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360...
  • Page 53 C340 C340 270p 270p 0.1u 0.1u 0.1u 0.1u R303 R303 180K 180K Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: POWER...
  • Page 54 BLM15PD121SN1 C432 C432 L405 L405 470p 470p BLM15PD121SN1 BLM15PD121SN1 1000p 1000p EXMIC Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: Page: Page: Page: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 AUDIO...
  • Page 55 0.1u 0.1u C738 C738 0.01u 0.01u C762 C762 0.1u 0.1u R713 R713 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Part Name:...
  • Page 56 R8082 R8082 C8117 C8117 D6009 D6009 8.2k 8.2k 470p 470p HSMS-2827 HSMS-2827 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: Page: Page: Page: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Part Name:...
  • Page 57 VDD_O R7048 R7048 R7014 R7014 R7049 R7049 (1,10,9) TX_En EM6M2 EM6M2 运放控制方案备用电源 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Date:...
  • Page 58 3.3K 3.3K C7069 C7069 R7052 R7052 470p 470p R7039 R7039 C7070 C7070 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Part Name:...
  • Page 59 Pre_Fastlock_Ctrl (1) C8042 C8042 470p 470p U8002 U8002 TS5A3159DCKR TS5A3159DCKR 10 R8017 R8017 R8069 R8069 FL_Fastlock_Ctrl (1) Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. 1SS390D8001 1SS390 D8001 10k R8010 R8010 R8006 R8006 PLL_LD_PS Model Name: Model Name: Model Name:...
  • Page 60 L502 L502 C509 C509 C508 C508 C507 C507 L8053 L8053 390nH 390nH Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Date:...
  • Page 61 Ua (400‑440 MHz) Parts List 12. Parts List Print Print Part No. Description No. Ref No. Part No. Description RF shielding 6203622000000 D8020 T4H 3304010100220 Varactor cover kit PL shielding Variable resistor 6202470000000 mask for main D8021 T2A 3305030000000 diode board FGU shielding protection...
  • Page 62 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description C142 3101014710010 470PF L306 B1B 3001060000000 0Ω BLM18SG121TN1 C143 3101011010030 100PF L307 T1F 3221506121000 BLM15PD121SN1 C144 3101011010030 100PF L400 B2C 3221505121010 BLM15PD121SN1 C145 3101011010030 100PF L401 B2B 3221505121010 BLM15PD121SN1...
  • Page 63 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description C232 3101011040080 0.1uF L7901 T3A 3233099190020 18.5nH C233 3101014710010 470PF L7902 T3A 3233099190020 18.5nH C234 3101011040080 0.1uF L7903 T3A 3233099190020 18.5nH C235 3101014710010 470PF L7904 T2A 3210107221000 220nH C236...
  • Page 64 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description transistor C306 3101011040080 0.1uF Q6005 T3C 3418001000010 NPN transistor C307 3101012710010 270pF Q6006 T3E 3401002000990 NPN transistor Compound C308 3101014710010 470PF Q6008 T1E 3403999000070 transistor C309 3101074750010 4.7UF...
  • Page 65 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description T2G 3001014720050 4.7KΩ C413 3101011040080 0.1uF R128 C415 3101011020060 1000pF R129 T2G 3001014720050 4.7KΩ C416 3101014710010 470PF R130 T2G 3001014700000 47Ω C417 3101012200020 22PF R131 T2G 3001014700000 47Ω...
  • Page 66 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description B2G 3001011010080 100Ω 222 C6081 T4A 3101014710010 470PF R184 223 C6082 T4B 3101011030050 0.01uF R185 B2G 3001011010080 100Ω 224 C6083 T3D 3101014710010 470PF R186 B1F 3001011010080 100Ω...
  • Page 67 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description T4H 3001051030050 10KΩ C693 3101011040080 0.1uF R466 C694 3101011040080 0.1uF R467 T4H 3001051020000 1KΩ C697 3101051010030 100PF R482 B3H 3001050000000 0Ω C700 3101053000010 30PF R483 B3H 3001055110000 510Ω...
  • Page 68 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description B2C 3001053310000 330Ω C730 3101056800000 68PF R7005 C737 3101011030050 0.01uF R7009 B3C 3001051050000 1MΩ C738 3101011030050 0.01uF R7010 B3C 3001058230000 82KΩ C759 3101054730000 0.047UF R7013 B3C 3001053940010 390KΩ...
  • Page 69 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description R8025 B3G 3001011020060 1KΩ 381 C8067 T3G 3101014710010 470PF 382 C8068 T3G 3101014710010 470PF R803 B2B 3001052040010 200kΩ C807 3101011040080 0.1uF R804 B2C 3001011020060 1KΩ 384 C8070 T3G 3101014710010 470PF R8040 B3G 3001018230000 82KΩ...
  • Page 70 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description B2D 3001014720050 4.7KΩ 434 C8142 T4H 3101054710130 470pF R818 435 C8143 T4H 3101062490000 2.4PF R819 B2C 3001011040030 100KΩ 436 C8146 T4H 3101051500020 15PF R820 3001014720050 4.7KΩ...
  • Page 71 Ua (400‑440 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description 468 D8007 T4G 3304010100220 Varactor U8002 B3G 3616010000000 Switching IC 469 D8008 T3G 3303030100010 Switching diode U8003 B3G 3616059000000 Switching IC 470 D8009 T4G 3304010100220 Varactor U802 B2B 3602012000020 Audio Amplifier IC...
  • Page 72 Uc (430‑470 MHz)
  • Page 73 Uc (430–470 MHz) Contents Contents 1. Product Controls ..........................1 2. Disassembly and Assembly ........................ 3 3. Exploded View and Packaging Guide ....................5 3.1 Exploded View ..........................5 3.2 Packaging Guide ..........................7 4. Specifications ............................8 5. Circuit Description ..........................10 5.1 Baseband ............................
  • Page 74 Uc (430–470 MHz) Contents 10.7 Tranmitter Circuit .......................... 41 11. Schematic Diagram .......................... 42 12. Parts List ............................52...

  • Page 75: Product Controls

    Uc (430–470 MHz) Product Controls 1. Product Controls Part Name Part Name PTT (Push-to-Talk) Key Cancel/Return Key SK1 (Side Key 1) Volume +/Right Key Up Key Power On/Off/ESC Key OK/Menu Key P3 Key Volume -/Left Key Down Key Call Key Strap Hole P1 Key RF Test Port (for technician only)
  • Page 76 Uc (430–470 MHz) Product Controls Part Name Part Name Microphone Belt Clip LCD Display Battery Latch...

  • Page 77: Disassembly And Assembly

    Uc (430–470 MHz) Disassembly and Assembly 2. Disassembly and Assembly This section is designed to introduce the way to disassemble the radio. To assemble the radio, do vice versa. Step 1 Remove the battery. 1. Slide the battery latch towards the top of the radio to unlock the battery cover. 2.
  • Page 78 Uc (430–470 MHz) Disassembly and Assembly 8. Remove the self-tapping screw securing the main board. 9. Remove the speaker wire connector. 10. Remove the FPC connector of the programmable keys. 11. Remove the main board.

  • Page 79: Exploded View And Packaging Guide

    Uc (430–470 MHz) Exploded View and Packaging Guide 3. Exploded View and Packaging Guide Exploded View...
  • Page 80 Uc (430–470 MHz) Exploded View and Packaging Guide Parts list: Part No. Description Qty. Part No. Description Qty. 7500161000000 Crystal sponge pad 6002110000000 PTT key cover 6101013100000 Waterproof ring for battery 6203519000000 Decoration bar cover 6101018100000 Silicone rubber pad for 6101015100000 PTT key (silicone rubber) battery 7102008020100 Self-tapping Screw...

  • Page 81: Packaging Guide

    Uc (430–470 MHz) Exploded View and Packaging Guide Packaging Guide...

  • Page 82: Specifications

    Uc (430–470 MHz) Specifications 4. Specifications General Frequency Range 430–470 MHz Channel Capacity Channel Spacing 25 kHz/12.5 kHz  Rated voltage: 3.7 V Operating Voltage  Extreme voltage: 3.15–4.2V Battery 2000 mAh Li-Ion battery Battery Life (5-5-90 Duty Cycle,  Analog: 10 hours High TX Power) High-capacity 2000mAh Li-Ion ...
  • Page 83 Uc (430–470 MHz) Specifications Rated Audio Power Output 0.4 W (8 Ω load) Rated Audio Distortion ≤5% Transmitter Power Output 3 W/1.5 W  -36 dBm<1 GHz Conducted/Radiated Emission  -30 dBm>1 GHz  ±2.5 kHz@12.5 kHz Modulation Limiting  ±5.0 kHz@25 kHz ...

  • Page 84: Circuit Description

    Circuit Description Uc (430–470 MHz) 5. Circuit Description Baseband PLL_CLK EEPROM 24FC512-I/SM PLL_STB PLL_DATA V_CHARGER PLL_LD ext_mic ext_spk AF_MUTE STM32F101VET6 12MHZ RSSI EXT_interface BAT_DET APC/TV 3V3D RESET ADJ_CRY USART port 3V3D Volume adjust 3V0D 3V0A SCT3928 S0DI FLASH_DO S0FS IN2L FLASH_CE VOICE Protoccol...
  • Page 85 Uc (430–470 MHz) Circuit Description DTC114YE PWR- KEY_ DET After inserted the charger , wake POWER_ KEY- U309 up the walky- talky POWER_ON XC 6118N28 AMR-G PWR_ON To keypad( hardware connectted ) VBUS POWER_ON U304 3V FGU Read charger status POWER_ KEY- RP102Z301D To PLL...
  • Page 86 Uc (430–470 MHz) Circuit Description When you long press the Power On/Off/ESC key, POWER_KEY- and POWER_ON are at high level, and the radio powers on. After power-on, PWR_ON goes to high level, and PWR-KEY_DET goes to low level. During power-off, POWER_KEY- is at low level, while PWR-KEY_DET is at high level. The system detects power-off procedure via PWR-KEY_DET and implements the power-off procedure.

  • Page 87: Control Module

    Uc (430–470 MHz) Circuit Description 5.1.2 Control Module PLL_ CLK EEPROM 24FC512-I/ SM PLL_ STB PLL_ DATA V_ CHARGER PLL_LD ext_mic ext_spk AF_ MUTE STM32F101VET6 12 MHZ RSSI EXT_ interface BAT_ DET APC/TV 3V3D RESET ADJ_ CRY USART port 3V3D Volume adjust 3V0D...

  • Page 88: Audio Module

    Uc (430–470 MHz) Circuit Description The radio uses STM32F101VET6(MCU) and SCT3928(Baseband IC). STM32F101VET6 is the main controller unit, while SCT3928 is the baseband processor chip, which is used for analog and digital modulation/demodulation and digital voice encoding/decoding. MCU communicates with SCT3928 via HPI BUS, connects to 512K EEPROM via I2C BUS and controls the LCD display via SPI BUS.

  • Page 89: Rf Section

    Uc (430–470 MHz) Circuit Description Finally, the audio signal is output to audio amplifier MAX9716EUA for amplifying via the HPL/R port of TLV320AIC3204 to drive the speaker.  TX path The audio signal received by the MIC is divided into two paths: one path is processed and sent to MCU for VOX sampling;...
  • Page 90 Uc (430–470 MHz) Circuit Description Buffer amplifier Interstage isolation Pre-Driver Driver/Final Stage TX/RX switch Low-pass filter Tx / Rx Low - pass T / R Drive - stage Final - stage PA match buffer Pre - Driver π 衰 Switch Filter Pre - Driver 1 Pre - Driver 2...

  • Page 91: Receiver Circuit

    Uc (430–470 MHz) Circuit Description 5.2.2 Receiver Circuit The receiver circuit mainly comprises the RF band-pass filter, low-noise amplifier, mixer, IF filter, IF amplifier and IF processor. S21≤1.5dB Ripple Inband≤ 1dB Stop band attenuation: -30dBc 3VFGU 3Vdc Lo Amp Low-Noise Amp 2SC3356 Lo input level≥7dBm VCTCXO...

  • Page 92: Fgu

    Uc (430–470 MHz) Circuit Description Receiver Back-end The processed first IF signal is sent to IC BA4116 for second mixing during which the second harmonic of the PLL crystal is selected as the second LO signal, mixed and converted to the 450 kHz second IF signal.
  • Page 93 Uc (430–470 MHz) Circuit Description VC_TXCO Mod_2 Fc=19.2MHz A=0.1Vpp~2.0Vpp PLL Sky72310 RF feedback LPF 3.0v for core&Vp FGU Close Loop: Compare frequence:4.8MHz Prescaler Level：50~250mVpp S21=-3dB PN: ≤-80 (dBc/Hz)@1KHz Fpass=500MHz PN: ≤-112 (dBc/Hz)@12.5KHz Fstop=800MHz PN: ≤-120 (dBc/Hz)@25KHz Astop=40dB PN: ≤-136 (dBc/Hz)@100KHz PN: ≤-145 (dBc/Hz)@1MHz Two Point modulation：...

  • Page 94: Troubleshooting Flow Chart

    Uc (430–470 MHz) Troubleshooting Flow Chart 6. Troubleshooting Flow Chart Control Circuit 6.1.1 No Display upon Power-on or Abnormal Display No display upon power-on or abnormal display [1] Check whether the battery voltage The voltage of TP304 is too low or whether the contact (V_BAT) is normal? [2] spring plate works well The POWER_KEY- signal...

  • Page 95: No Voice Output By Speaker

    Uc (430–470 MHz) Troubleshooting Flow Chart 6.1.2 No Voice Output by Speaker No voice output by speaker Check the speaker SPK+ and SPK- output and its connection normally? U802 has audio signal U802 is abnormal or U802 enable signal inputs (C810 and C820)? damaged is normal? Check D8005 and...

  • Page 96: No Modulation Signal In Transmission

    Uc (430–470 MHz) Troubleshooting Flow Chart 6.1.3 No Modulation Signal in Transmission No modulation signal in transmission MIC inputs normally? Check MIC CODEC audio input Check whether U401 (MICN2/MICP2) is normal? works normally Refer to FGU diagram CODEC output (R202, for repairing R204) is normal? information...

  • Page 97: Receiver Circuit

    Uc (430–470 MHz) Troubleshooting Flow Chart Receiver Circuit No receiving 3VRT 3V_RX_RF outputs Check U306 outputs normally?[2] normally?[1] The static working Check Q6005 point of Q6005 is normal?[3] The static working Check Q6006 point of Q6006 is normal?[4] Check Q611 Input IF signal via z6001 to Second LO is normal?[6] and peripheral...

  • Page 98: Transmitter Circuit

    Uc (430–470 MHz) Troubleshooting Flow Chart Description of Normal Situations: [1] Output voltage by Q6004 Pin 3 is about 3V. [2] Output voltage by U306 Pin 5 or input voltage by Q6004 Pin 4 is about 3V. [3] Check the collector voltage and base voltage of Q6005 when the circuit is not receiving signals. Normally, the voltage is about 0.754 V at pole B, about 2.728 V at pole C and 0 V at pole E.
  • Page 99 Uc (430–470 MHz) Troubleshooting Flow Chart No power output Check the Power supply works power supply normally?[1] circuit. VGG is APC/TV1 is Check the MCU normal?[2] normal?[3] output circuit. Replace Q6008 3V_TX_RF TX_En is is normal?[5] normal?[5] TX_En 3.3V is Check the power normal?[4] supply circuit.
  • Page 100 Uc (430–470 MHz) Troubleshooting Flow Chart [1] Voltage of the power supply is about 3.7 V. [2] For low power, VGG is 1.2 to 1.4 V; for high power, VGG is 1.4 to 1.6 V. [3] For low power, TV/APC is 1.4 to 1.6 V; for high power, TV/APC is 2.0 to 2.2 V. [4] TX_En is about 3 V.

  • Page 101: Fgu Circuit

    Uc (430–470 MHz) Troubleshooting Flow Chart FGU Circuit FGU check 3VFGU, VCC_CP and Check the power supply 3VOA_FGU_PLL are circuit. normal? Q8002, Q8003, Q8005, Q8004/Q8008 are Replace Q8004 and VCO oscillates? Q8009 and Q8011 are normal?[2] Q8008. normal?[1] Replace Q8002, Check Q8004, Q8008 Q8003, Q8005, Q8009 and peripheral...
  • Page 102 Uc (430–470 MHz) Troubleshooting Flow Chart 1.63 V at pole B. During receipt, the voltage is about 1.17 V at pole E of Q8004, about 2.83 V at pole C and about 1.88 V at pole B. [3] The CV value varies with frequencies. Generally, it is above from 0.55 V and below 2.4 V. [4] L8018/L8045 is on.

  • Page 103: Interface Definition

    Uc (430–470 MHz) Interface Definition 7. Interface Definition The definition of each pin is described as below. Interface Pin No. Signal Function VBUS RXD1 TXD1 J5004 TD_IO SPK+ MIC+ J800...

  • Page 104: Tuning Description

    Uc (430–470 MHz) Tuning Description 8. Tuning Description Tools  Radio communication test sets: Aeroflex 3920 and HP8921  3 A/ 10 V power supply  Multimeter  Tuner software Tuning Procedure 8.2.1 Tuning a radio After re-assembling the radio, you need to tune it with the Tuner software. The specific operations are described in the table below.
  • Page 105 Uc (430–470 MHz) Tuning Description Items Method Connect the antenna connector of the radio to HP8921, and set HP8921 to TX test mode. Set the HP8921 parameters as follows: IF Filter: 230 kHz Filter1: <20 Hz HPF Filter2: <15 kHz LPF Transmit-to-Deviation De-Emphasis: OFF Open the Tuner software and go to “TUNE_DATA ->...
  • Page 106 Uc (430–470 MHz) Tuning Description Items Method is input via the keyboard. If the value is adjusted via the vernier, skip this step. Click the “Transmit Off” button. Click the dialog box below LOW_PORT. Set AFGen1 Freq to 1.4 kHz on HP8921. 10.

  • Page 107: Testing A Radio

    Uc (430–470 MHz) Tuning Description Items Method step. 8.2.2 Testing a radio After tuning the radio, it is required to test the digital RF signal. Transmitting Step 1 Open the Tuner software and go to “TEST -> TX -> Transmit BER (0.153)”. Step 2 Select the channel to be tested and select “High Power”...

  • Page 108: Pcb View

    9. PCB View Main Board_Top Layer...
  • Page 109 Main Board_Bottom Layer...

  • Page 110: Block Diagram

    Uc (430–470 MHz) Block Diagram 10. Block Diagram 10.1 General Radio Diagram McBSP2 MCSI1 GPIOs SPI2 FLASH BB Processor SCT3928 JTAG UART1 12.0MHz McBSP1 Security XTAL OMAP132 I2C1 STM32F100VD MCLK Key Board 19.2MHz GPIOs UART3 UART2 GPIOs GPIOs Audio Codec TLV3204 MPUIO/ SPI3...

  • Page 111: Rf Circuit

    Uc (430–470 MHz) Block Diagram 10.2 RF Circuit 3V_TX_RF Current 3V_TX_RF sensor 3V7_PA Tx/Rx 2SK3078 Switch 2SC3356 BFQ540 RFM03U3CT Match Match Match Match Harmonic RFM03U3CT Filter PreDriver 1 PreDriver 2 3V_TX_RF VCO_L/H_En Active Bais_Dow Filter n _Circuit 3V_FGU MOD_VCO V_BAT EM6M2 VCO_L/H_En BIAS_DOWN...

  • Page 112: Baseband Circuit

    Uc (430–470 MHz) Block Diagram 10.3 Baseband Circuit PLL_CLK EEPROM 24FC512-I/SM PLL_STB PLL_DATA V_CHARGER PLL_LD ext_mic ext_spk AF_MUTE STM32F101VET6 12MHZ RSSI EXT_interface BAT_DET APC/TV 3V3D RESET ADJ_CRY USART port 3V3D Volume adjust 3V0D 3V0A S0DI SCT3928 FLASH_DO S0FS IN2L FLASH_CE VOICE Protoccol Security Key...

  • Page 113: Power Supply Circuit

    Uc (430–470 MHz) Block Diagram 10.4 Power Supply Circuit DTC114YE PWR- KEY_ DET After inserted the charger , wake POWER_ KEY- U309 up the walky- talky POWER_ON XC 6118N28 AMR-G PWR_ON To keypad( hardware connectted ) VBUS POWER_ON U304 3V FGU Read charger status POWER_ KEY- RP102Z301D...

  • Page 114: Fgu Circuit

    Uc (430–470 MHz) Block Diagram 10.5 FGU Circuit VC_TXCO Mod_2 Fc=19.2MHz A=0.1Vpp~2.0Vpp PLL Sky72310 RF feedback LPF 3.0v for core&Vp FGU Close Loop: Compare frequence:4.8MHz Prescaler Level：50~250mVpp S21=-3dB PN: ≤-80 (dBc/Hz)@1KHz Fpass=500MHz PN: ≤-112 (dBc/Hz)@12.5KHz Fstop=800MHz PN: ≤-120 (dBc/Hz)@25KHz Astop=40dB PN: ≤-136 (dBc/Hz)@100KHz PN: ≤-145 (dBc/Hz)@1MHz Two Point modulation：...

  • Page 115: Receiver Circuit

    Uc (430–470 MHz) Block Diagram 10.6 Receiver Circuit Low-pass Filter T/R SW Lo Amp 2SC3356 Lo OSC VC TCXO Double Circuit 19.2MHz 2SC5108 Low-Noise Amp AT-41511 BPF2 BPF1 BA4116 Mixer IF Filter Pi Attenuator IF Processor IF Amp HSMS-2827 Tuned Voltage 38.85MHz 2SC5108...
  • Page 116 Uc (430–470 MHz) Block Diagram 10.7 Transmitter Circuit Buffer amplifier Interstage isolation Pre-Driver Driver/Final Stage TX/RX switch Low-pass filter Tx / Rx Low - pass Drive - stage Final - stage PA match T / R π 衰 buffer Pre - Driver Switch Filter Pre - Driver 1...
  • Page 117 TP104 TP104 C113 C113 D104 D104 C114 C114 D105 D105 PT-036-D1S PT-036-D1S Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. 470p 470p 470p 470p Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360...
  • Page 118 0.1u R213 R213 R214 R214 1V2D 1V2VDD 4.7K 4.7K 4.7K 4.7K U203 U203 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Security Key Security Key L204 L204 C226 C226 Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360...
  • Page 119 270p 270p 0.1u 0.1u C340 C340 R303 R303 180K 180K 0.1u 0.1u Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: POWER...
  • Page 120 BLM15PD121SN1 C432 C432 L405 L405 470p 470p BLM15PD121SN1 BLM15PD121SN1 1000p 1000p EXMIC Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: Page: Page: Page: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 AUDIO...
  • Page 121 0.1u 0.1u C738 C738 0.01u 0.01u C762 C762 0.1u 0.1u R713 R713 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Part Name:...
  • Page 122 R8082 R8082 C8117 C8117 D6009 D6009 8.2k 8.2k 470p 470p HSMS-2827 HSMS-2827 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: Page: Page: Page: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Part Name:...
  • Page 123 VDD_O R7048 R7048 R7014 R7014 R7049 R7049 (1,10,9) TX_En EM6M2 EM6M2 运放控制方案备用电源 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Date:...
  • Page 124 3.3K 3.3K C7069 C7069 R7052 R7052 470p 470p R7039 R7039 C7070 C7070 Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Part Name:...
  • Page 125 Pre_Fastlock_Ctrl (1) C8042 C8042 470p 470p U8002 U8002 TS5A3159DCKR TS5A3159DCKR 10 R8017 R8017 R8069 R8069 FL_Fastlock_Ctrl (1) Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. 1SS390D8001 1SS390 D8001 10k R8010 R8010 R8006 R8006 PLL_LD_PS Model Name: Model Name: Model Name:...
  • Page 126 L502 L502 C509 C509 C508 C508 C507 C507 L8053 L8053 390nH 390nH Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Hytera Communications Co.Ltd. Model Name: Model Name: Model Name: DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 DMR LOWCOST PD350/PD360 Page: Page: Page: Date:...
  • Page 127 Uc (430–470 MHz) Parts List 12. Parts List Print Print Part No. Description No. Ref No. Part No. Description shielding protection 6203622000000 D802 B2D 3399040600000 cover kit diode shielding 6202470000000 mask for main D8020 T4H 3304990000040 Varactor board shielding Variable resistor 6203494000000 D8021...
  • Page 128 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description BLM18SG121TN1 C140 3101014710010 470PF L305 T4F 3221506121000 C141 3101014710010 470PF L306 B1B 3001060000000 0Ω BLM18SG121TN1 C142 3101014710010 470PF L307 T1F 3221506121000 BLM15PD121SN1 C143 3101011010030 100PF L400 B2C 3221505121010 BLM15PD121SN1...
  • Page 129 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description Chip inductor C220 3101014710010 470PF L625 T2G 3210306561010 560nH Chip inductor C221 3101011040080 0.1uF L626 T3E 3210306180000 18nH BLM15PD121SN1 C222 3101014710010 470PF L645 B1B 3221505121010 BLM15PD121SN1 C223 3101014710010 470PF...
  • Page 130 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description C259 3101014710010 470PF L8023 T3F 3001061000000 10Ω Coil inductor C260 3101011040080 0.1uF L8025 T3G 3210106391000 390nH Chip inductor C261 3101014710010 470PF L8027 T3F 3210306330000 33nH BLM15PD121SN1 C262...
  • Page 131 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description C326 3101011040080 0.1uF Q8012 T3F 3503010000010 P-MOSFET Bias resistor C327 3101082260120 22UF Q8013 T3D 3403007000020 transistor C328 3101051040100 0.1UF Q8014 T3E 3408002000000 NPN transistor Bias resistor C329...
  • Page 132 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description T1F 3001011010080 100Ω C509 3101050700010 7PF R158 C553 3101053300000 33PF R159 B1H 3001011010080 100Ω C554 3101053310030 330PF R160 B1H 3001011040030 100KΩ C555 3101053320010 3300PF R161 B1H 3001011040030 100KΩ...
  • Page 133 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description T3H 3001014720050 4.7KΩ C629 3101061600000 16PF R229 C630 3101082260120 22UF R301 T1H 3001051840010 180KΩ C631 3101011020060 1000pF R303 T1H 3001051840010 180KΩ C632 3101011020060 1000pF R304 T1G 3001014730010 47KΩ...
  • Page 134 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description T2C 3001051220090 1.2KΩ 300 C7048 T4A 3101065610000 560PF R631 301 C7049 T2E 3101051500020 15PF R632 T2C 3001054700010 47Ω C705 3101050400010 4PF R633 T2C 3001054700010 47Ω 303 C7051 3101014710010 470PF R634...
  • Page 135 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description B4B 3001080190000 0.1Ω 353 C8022 B3G 3101011050000 1uF R7056 354 C8023 B4G 3101011040080 0.1uF R708 T2F 3001011820000 1.8KΩ 355 C8024 B4H 3101011020060 1000pF R712 T3F 3001012220010 2.2KΩ...
  • Page 136 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description B2A 3001061000000 10Ω C810 3101051040100 0.1UF R807 407 C8102 B3H 3101011020060 1000pF R8070 T4H 3001014320010 4.3KΩ 408 C8103 3101051200050 12PF R8071 T4G 3001051800010 18Ω 409 C8104 T4H 3101062250200 2.2UF R8072...
  • Page 137 Uc (430–470 MHz) Parts List Print Print Part No. Description No. Ref No. Part No. Description diode D405 3399990000080 Zener diode U202 3617023000000 Logic IC D406 3399990000080 Zener diode U203 3609999018950 Encrypted Chip D501 3303030800020 Switching diode U204 3617023000000 Logic IC Power D502 3303030800020 Switching diode...
  • Page 138 Hytera Communications Corporation Limited. 2014 Hytera Communications Corporation Limited. 1616300000320 10-2014 L07157...

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