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This manual describes the information related to the product repair. It is intended for use by qualified technicians only. Before repairing the product properly, please read this manual carefully. This manual is applicable to the following product: PNC550 Smart PoC Radio...
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Copyright Information Hytera is the trademark or registered trademark of Hytera Communications Corporation Limited (the Company) in the People's Republic of China (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.
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Documentation Information This section describes conventions and revision history of this document. Conventions Icon Conventions Icon Description Indicates information that can help you make better use of your product. Indicates references that can further describe the related topics. Indicates situations that could cause data loss or equipment damage. Indicates situations that could cause minor injury.
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Revision History Version Release Date Description March 2020 Initial release.
Disassembly and Reassembly 2. Disassembly and Reassembly This chapter describes how to disassemble the radio. To reassemble the radio, do vice versa. When reassembling the radio, make sure that the waterproof ring is evenly inserted into the original position to ensure the waterproof performance of the radio. 2.1 Precautions Waterproof Test ...
Disassembly and Reassembly 2.3 Procedures Remove the battery. Turn off the radio. ○ ○ Slide the battery latch to the position 1 , and then remove the battery cover ○ ○ Press the buckle position on the bottom of the battery, and lift up 3 to remove the battery Disassemble the chassis.
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Disassembly and Reassembly Disassemble the main board kit. ○ Use a Phillips screwdriver to remove the two screws on the main board ○ Remove the three FPC connectors (LCM FPC, key FPC, and main-deputy board FPC) ○ Remove the RF cable connector and RF cable 10 .
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Disassembly and Reassembly ○ Use a Phillips screwdriver to remove the three screws on the Type-C adapter board 16 , and then ○ remove the adapter board 17 . Disassemble the deputy board kit. ○ Remove the FPC connector on the deputy board 18 .
Exploded View and Packaging Guide 3. Exploded View and Packaging Guide 3.1 Exploded View Part No. Description Part No. Description 50100200060101 TP LCM 5116000002909A SIM card clip 5113040060021A Receiver dustproof net 5116000002755A Flashlight lens TP double-sided 5113070060021A 5113010060221A Battery latch PC pad 2 adhesive tape 5116000002846A 51049900000559...
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Exploded View and Packaging Guide Part No. Description Part No. Description Waterproof and 5110010060061A breathable film for 5110990060129A Screw plug silicone rubber Mic Double-sided 50100500060001 Front camera 5113070000052A adhesive tape for rear camera 11500000005576 Keyboard FPC 5116000000843A Camera lens 5110030060104A Waterproof ring 5121000060167A NFC antenna...
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Exploded View and Packaging Guide Part No. Description Part No. Description Double-sided adhesive Waterproof ring for 5113070060024A 5110030000086A tape for flashlight FPC radio charging piece The part number is subject to change without notice due to product upgrade.
Specifications 4. Specifications General Operating system Android OS 8.1 Qualcomm platform: 1.8 GHz External memory 32 GB ROM and 3 GB RAM Storage Extended memory 64 GB at most Dimensions (H x W x 156.5 mm x 76 mm x 14 mm Weight (with standard <...
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Specifications Proximity sensor Ambient light sensor Sensor Gravity sensor Compass Type-C USB (data and charging) Accessory port Audio connector: 3.5 mm Network Network All networks GSM: 850/900/1800/1900 W-CDMA: B2/B4/B5 Frequency band TDD-LTE: B38 FDD-LTE: B2/B3/B4/B5/B7/B12/B13/B17/B26/B28 LTE protocol 3GPP Speed class...
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Specifications ±12 kV (air) Electrostatic discharge IEC 61000-4-2 (level 4) (ESD) ±8 kV (contact) Water & Dust IP67 Protection Wet, Shock & Vibration MIL-STD-810 G Protection All specifications are tested according to applicable standards, and subject to change without notice due to continuous technological development.
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Circuit Description Micro SIM/SD Card Connector LDO11 2.95V LDO12 1.8V/2.95V VREG_L12 LDO5 1.8V VDDPX_2 SDC2_CLK SDC2_CLK SDC2_CMD SDC2_CMD Micro SIM/SD SDC2_DATA[3:0] SDC2_DATA[3:0] Connector VREG_L5 VDDPX_3 SDCARD_DET_N GPIO_xx LCD Display and Touch Screen MIPI Display Touch Screen The Android Platform (AP) connects to the LCD display through the MIPI interface, and to the touch screen through the I2C interface.
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Circuit Description Sensor Gyro_ Sensor E-Compass Proximity sensor/ Light-sensor The AP connects to the sensors through the I2C interface. There are proximity sensor, ambient light sensor, gravity sensor, and compass. 5.1.1.2 Audio and Peripheral Module Up MIC Deputy Board Receiver Haptics Earpiece Main_ Deputy...
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Circuit Description GSM1900 and LTE B2 share one RX channel. W-CDMA W-CDMA B1 and LTE B1 share the RX-TX channel. W-CDMA B3 and LTE B3 share the RX-TX channel. W-CDMA B5 and LTE B5 share the RX-TX channel. ...
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Circuit Description TDD RX Circuit The TDD RF signal from the antenna goes to the ANT port of the PA (U1203), the TRX port, and then the DUP for filtering. The filtered LTE signal goes to the PA (U1401), the switch for channel switching, and then to the main receiving interface of the Transceiver (U1600).
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Circuit Description 5.1.2.6 NFC Circuit SWP1 UICC1 Host Interface (U1500) SWP2 UICC2 ANTENA MATCHING The host interface of the AP controls the NFC chip. The NFC chip passes through the matching network and connects to the NFC antenna on the battery cover through the Pogo pin. The NFC chip can realize the card simulation function.
Troubleshooting Flowchart 6. Troubleshooting Flowchart 6.1.1 Main Board Circuit Start Replace Press the On-Off key the LCD or LCD connector Replace the to turn the radio on. on the main board. Can the radio be main board. Does the motor vibrate? turned on normally? Damaged LCD or LCD connector on the main board.
Troubleshooting Flowchart 6.1.2 Main Circuit Start Is the antenna Replace the antenna bracket. bracket normal? [1] Is the main antenna spring plate Replace the spring plate. ANT1-4 normal? [2] Is the main antenna Re-solder or replace the test connector J1200 test connector.
Troubleshooting Flowchart 6.1.3 Diversity Circuit Start Is the diversity antenna Replace the diversity antenna. on the chassis normal? [1] Replace the coaxial cable, or Is the RF coaxial cable normal? [2] re-buckle or re-solder the RF connector. Is the diversity spring Re-solder or replace the spring plate on the earpiece board plate.
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Troubleshooting Flowchart [5] The components are soldered properly without damage. [6] Use a single-board test clamp to test the diversity antenna. All test items are normal.
Troubleshooting Flowchart 6.1.4 LCD Circuit Start Replace the LCD. Is the LCD normal? [1] Is J1006 connected normally? [2] Re-solder or replace J1006. Are the peripheral Re-solder or replace the components of J1006 components. normal? [3] Replace the main board. Description of normal situations: [1] The LCD displays normally, and the touch screen works properly.
Troubleshooting Flowchart 6.1.5 Camera Circuit Start Replace the camera. Is the camera normal? [1] Are J1100 and J1101 Re-solder or replace connected normally? [2] J1100 and J1101. Are the peripheral Re-solder or replace the components of J1100 and J1101 components. normal? [3] Replace the main board.
Troubleshooting Flowchart 6.1.6 Receiver Circuit Start Wipe with alcohol or remove the Is J901 normal? [1] foreign object. Replace the receiver. Is the receiver normal? [2] Replace the main board. Description of normal situations: [1] There are no stains or foreign objects on the exposed copper. [2] The receiver sounds clearly without anomaly.
Troubleshooting Flowchart 6.1.7 Speaker Circuit Start Re-buckle the speaker cable or Is the speaker normal? [1] replace the speaker. Replace the main-deputy board Repair or replace the main-deputy FPC. Is the speaker normal? board FPC. Replace the deputy board. Is the Repair or replace the deputy board.
Troubleshooting Flowchart 6.1.8 Top Microphone Circuit Start Remove the obstacle, or re-solder Is the main board Mic normal? [1] or replace the Mic. Does the waterproof and Re-attach or replace the waterproof breathable film or silicon rubber and breathable film or the silicon case block the Mic? rubber case.
Troubleshooting Flowchart 6.1.9 Bottom Microphone Circuit Start Is the earpiece board Mic Remove the obstacle, re-solder or normal? [1] replace the Mic. Does the Re-attach or replace the waterproof waterproof and breathable and breathable film or the silicon Film or silicon rubber case block rubber case.
Troubleshooting Flowchart 6.1.10 Proximity Sensor/Ambient Light Sensor/LED Circuit Start Is the Reinstall or replace the silicon light-sensitive silicon rubber case rubber case. installed normally? [1] Is the light-sensitive & tricolor Repair or replace the light-sensitive light FPC normal? [2] & tricolor light FPC. Are the connector and Repair or replace the connector or peripheral components normal?
Troubleshooting Flowchart 6.1.11 USB Circuit Start Replace the Repair or replace the main- main-deputy board FPC. Is the deputy board FPC. USB normal? Replace the Type-C FPC. Repair or replace the Type-C Is the USB normal? FPC. Replace the earpiece board. Repair or replace the earpiece Is the USB normal? board.
Troubleshooting Flowchart 6.1.12 Earpiece Circuit Start Replace the earpiece board. Repair or replace the earpiece Is the earpiece normal? board. Replace the Repair or replace the main-deputy main-deputy board FPC. Is the board FPC. earpiece normal? Replace the main board.
Troubleshooting Flowchart 6.1.13 GPS/WLAN/BT Circuit Start Is the antenna bracket normal? [1] Replace the antenna bracket. Are the antenna spring plate Replace the spring plate. ANT7 and ANT8 normal? [2] Is the main antenna Re-solder or replace the test test connector J1700 normal? connector.
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Troubleshooting Flowchart [5] Use a standard equipment in the test. The test result is normal.
Interface Definition 7. Interface Definition The table below lists the information about the audio accessory connector and USB port. Type Pin No. Signal Illustration Audio Accessory Connector CDC_HPH_R R GND MIC CDC_HPH_L CDC_HS_DET A1/B12/A12/B1 A4/B9/A9/B4 VBUS A6/B6 10 11 12 USB Port A7/B7 12 11 10...
Tuning Description 8. Tuning Description All software and tools are available in the software package published by Hytera. 8.1 Installing the Driver 8.1.1 Preparation Operating system: Windows 7 (recommended) Driver: Qualcomm USB driver: all files and folders under the "cross2_win_usb_driver" folder as shown ...
Tuning Description 8.1.3 Port Verification Connect the radio to the PC using the USB cable. Unplug the USB connector connected to the radio for three consecutive times. The other USB connector connects to the same USB port on the PC. Check whether the PC establishes a mapping for the same Qualcomm port and the mapping for Android Composite ADB Interface is always established properly.
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Tuning Description Run the "MultiDownload_V2.1", and then click LoadXML… to select the software to be burned. Enter "123456" in the PassWord prompt box. Select the "rawprogram0_32G_split.xml" file to download. (If no, consult the relevant R&D or technical support engineer.)
Tuning Description Click Start. The "Download Info" panel displays "PASS" when the burning is complete. Reboot the radio. 8.2.3 MMI Test Before starting the MMI test, make sure that the SIM card and SD card are inserted. Turn the radio on. Enter "*#*#83789#*#*".
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Tuning Description Select "*Pre_Function Test(Manual)" to start the test. Check all test items. The color of the circle on the left indicates the test result. Green indicates that the item passes the test. Red indicates that the item fails in the test. Grey indicates that the item is not tested.
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Tuning Description The table below lists the details of each test. Standard for Judgement Note Test Item Check whether the software version is Software Version Test correct. The screen displays the clock after being "Rtc" indicates real-time Rtc Test woken up. clock.
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Tuning Description Standard for Judgement Note Test Item the radio automatically completes and exits the test. Insert the earpiece: The LCD displays a prompt that the earpiece is connected. Speak to the earpiece Mic: You can hear EarPhone Test the voice in the earpiece speaker. Press the PTT key on the earpiece: If succeeded, select PASS.
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Tuning Description Standard for Judgement Note Test Item Tap the screen to draw lines according to Touch Screen Test the instruction. All lines are successfully drawn. The screen recognizes four contacts MultiTouch Test when you press and hold the screen with four fingers simultaneously.
Part List 12. Part List 12.1 Main Board 12.1.1 Baseband Priorit Part No. Description Print No. F1110000082-01 IC, PMIC for power U300 F1110000083-01 IC, BB U800 L1115060006-01 IC, eMMC+LPDDR3 U801 F1110000072-01 IC, PMIC for interface U100 F1154000041-01 IC, OVP Switch U200 L2410000011-01 Silicon Microphone...
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Part List Priorit Part No. Description Print No. F3474002200-01 IND-P, 2.2μH F3474912220-02 IND-P, 2.2μH L302, L303, L306 F3474922100-01 Power Inductor, 2.2μH F3474001470-01 IND-P, 0.47μH L304, L305 F3474041470-01 Power Inductor, 0.47μH F1411000017-01 Schottky Barrier Diode D100, D101 L1411000031-01 Schottky Barrier Diode F1411000018-01 Schottky Barrier Diode D200, D201...