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Huawei G510 Maintenance Manual

Huawei G510 Maintenance Manual

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G510 Maintenance Manual
Prepared by
Reviewed by
Approved by
V1.0
Huawei Technologies Co., Ltd.
All rights reserved.
Date
Date
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Summary of Contents for Huawei G510

  • Page 1 G510 Maintenance Manual V1.0 Prepared by Date Reviewed by Date Approved by Date Huawei Technologies Co., Ltd. All rights reserved.

  • Page 2: Change History

    G510 Maintenance Manual V1.0 INTERNAL Change History Date Version Change Reason Changed Change Author Chapter Description 2012-11-15 V1.0 Released the first issue. 2013-01-28 Huawei Confidential Page 2 of 96...

  • Page 3: Table Of Contents

    5.3 Installing the USB Driver ..........................14 5.3.1 Performing a Normal Upgrade ......................16 5.3.2 Performing a Forcible Upgrade ......................18 5.4 Upgrading the G510 Using the microSD Card ....................18 5.4.1 Performing a Normal Upgrade ......................18 5.4.2 Performing a Forcible Upgrade ......................20 5.5 Troubleshooting Upgrade Failures .........................
  • Page 4 G510 Maintenance Manual V1.0 INTERNAL 9.4 Peripheral Circuits ............................59 9.4.1 LCD Circuit ............................59 9.4.2 Vibrator Circuit ............................. 63 9.4.3 Receiver and Speaker ..........................65 9.4.4 Microphone ............................69 9.4.5 Headset Circuit ............................72 9.4.6 SIM Card Circuit ........................... 74 9.4.7 I/O Interface Circuit ..........................

  • Page 5: Brief Introduction

    G510 Maintenance Manual V1.0 INTERNAL Brief Introduction 1.1 Appearance Figure 1-1 shows the appearance of the G510. Figure 1-1 Appearance of the G510 1.2 Features Item Description 9.9 mm x 134 mm x 67 mm (0.39 in. x 5.28 in. x...
  • Page 6 G510 Maintenance Manual V1.0 INTERNAL Item Description 2.64 in.) Technical standard WCDMA Frequency bands GSM: 850/900/1800/1900 MHz WCDMA: 900/2100 MHz Weight About 150g (including the battery) Form factor Bar-type Antenna Built-in Charger Output: 5 V, 1A Flash memory ROM: 4 GB...

  • Page 7: Applicable Scope And Precautions

    2.1 Applicable Scope This document provides repair instructions for technicians at service sites authorized by Huawei. This maintenance manual is confidential and accessible to authorized service centers (ASCs) and authorized service providers (ASPs) only. While every effort has been made to ensure the accuracy of this document, errors may still exist.

  • Page 8: Exploded View

    G510 Maintenance Manual V1.0 INTERNAL Exploded View Figure 3-1 shows the exploded view of the G510. Figure 3-1 Exploded view of the G510 Figure 3-2 shows the components in the exploded view. Figure 3-2 Components in the exploded view 2013-01-28...

  • Page 9: Battery Cover

    Sim-TF-FPC Back housing assy Main antenna Battery cover NOTE The components shown in the Figure 3-2 are structural parts of the G510, and cannot be used as reference when spare parts are requested. 2013-01-28 Huawei Confidential Page 9 of 96...

  • Page 10: Components On The Main Pcb

    G510 Maintenance Manual V1.0 INTERNAL Components on the Main PCB 2013-01-28 Huawei Confidential Page 10 of 96...
  • Page 11 G510 Maintenance Manual V1.0 INTERNAL The following component list is for reference only. It is subject to changes without notices. The latest component list is available in Huawei's ITEM information system. If you have any question, contact your local technical support center. 2013-01-28...
  • Page 12 G510 Maintenance Manual V1.0 INTERNAL Description 39110740 LDO,2.85V,3%,0.3A,DFN,Terminal Dedicated Power Management 39200332 IC(PM8029),3.0~4.4V,140WLNSP(pb-free),Terminal Dedicated 39200151 CDMA RF Transceiver RTR6500,2.0V~2.17V,68mQFN,Terminal Dedicated 40060324 MCP,4GB eMMC,52MHz,1024KB,3.3V/1.8V,FBGA153(Pb free),4Gb (128M*32) LPDDR1,Terminal Dedicated 39200401 Terminal Baseband process IC,WCDMA/GSM Dualmode BASEBAND PROCESSOR MSM8225-0,1.2V/1.8V/2.85V,576 NSP(Pb free) 47100362 RF gain module,824~849MHz,26.4dB(High Gain)/14.1dB(Low Gain),3x3, LGA,1000V,Terminal...

  • Page 13: Software Upgrade

    G510 Maintenance Manual V1.0 INTERNAL Software Upgrade 5.1 Preparing for Upgrade Category Item Remarks Upgrade Battery Two bars or more battery power is remained. environment microSD card 512 MB or more. Computer Used to copy the upgrade files. Upgrade package Main upgrade Provided for reference only.

  • Page 14: Installing The Usb Driver

    G510 Maintenance Manual V1.0 INTERNAL 5.3 Installing the USB Driver To install the USB driver: Step 1 Double-click DriverSetup.exe and click Install in the dialog box shown in Figure 5-2, to start the installation. Figure 5-2 Installing the USB driver Figure 5-3 shows the installation progress.
  • Page 15 Step 2 After the installation is complete, click Close, as shown in Figure 5-4. Figure 5-4 Closing the dialog box Step 3 Power on the G510, connect it to the computer using a USB cable, and click Device Manager to display the Computer Management window to check that the port information is correct, as shown in Figure 5-5.

  • Page 16: Performing A Normal Upgrade

    5.3.1 Performing a Normal Upgrade To perform a normal upgrade: Step 1 Power on the G510, and use a USB cable to connect the G510 to the computer on which the USB driver and 10KNewMu have been installed. Step 2 Double-click 10KNewMu.
  • Page 17 G510 Maintenance Manual V1.0 INTERNAL Figure 5-7 Starting the upgrade Figure 5-8 shows the upgrade progress. Figure 5-8 Upgrade progress If the upgrade is complete, Download Success is displayed, as shown in Figure 5-9. 2013-01-28 Huawei Confidential Page 17 of 96...

  • Page 18: Performing A Forcible Upgrade

    ----End 5.3.2 Performing a Forcible Upgrade With the G510 powered off, press and hold the power key and the volume up and volume down keys to drive the G510 to enter forcible upgrade mode. Then perform the steps as you conduct a normal upgrade.
  • Page 19 G510 Maintenance Manual V1.0 INTERNAL Figure 5-10 Performing a normal upgrade 2013-01-28 Huawei Confidential Page 19 of 96...

  • Page 20: Performing A Forcible Upgrade

    Step 2 Create a folder dload in the root directory of the microSD card and copy UPDATA.APP from the main upgrade package to the dload folder. Step 3 With the G510 powered off, press and hold the power key and the volume up and volume down keys to drive the G510 to enter forcible upgrade mode.
  • Page 21 G510 Maintenance Manual V1.0 INTERNAL Failed to upgrade the 1. Check that the USB cable has been properly connected to the G510 using the USB computer. cable. 2. Perform the upgrade again. Failed to upgrade the 1. Check that the upgrade file is correct.

  • Page 22: Repair Tools

    G510 Maintenance Manual V1.0 INTERNAL Repair Tools Name: heat gun Usage: heats components Name: heat gun Usage: heats components Name: soldering iron Usage: solders components Name: DC power supply Usage: supplies power Name: soldering fixture Usage: fixes the main PCB...
  • Page 23 G510 Maintenance Manual V1.0 INTERNAL Name: lead-free solder wire Usage: solders components Name: digital multimeter Usage: measures parameters during maintenance Name: toolkit Usage: assembles and disassembles the G510 Name: electric screwdriver Usage: fastens and removes screws 2013-01-28 Huawei Confidential Page 23 of 96...

  • Page 24: Disassembly Procedure

    G510 Maintenance Manual V1.0 INTERNAL Disassembly Procedure 7.1 Disassembling a Bare Phone 1. Wear the ESD wrist strap and ensure that the ESD wrist strap is properly 2. Start to disassemble the U8951. grounded. 3. Remove the battery cover. 4. Remove the screws on the back cover.
  • Page 25 G510 Maintenance Manual V1.0 INTERNAL 5. Use a cover opener to loosen the clips between the support and back cover. 6. Use a cover opener to loosen the clips between the support and back cover. 8. disconnect the ZIF connector.
  • Page 26 G510 Maintenance Manual V1.0 INTERNAL 12. remove the front camera 11. remove the main camera 7.2 Disassembling the Touchscreen 2. Push the four blocks to fix the front 1.put front housing assy into touchscreen cover. disassembling fixture. 4. Use your left hand to press the knob 3.
  • Page 27 G510 Maintenance Manual V1.0 INTERNAL 5.set the heater temperature to70; 6.heating the touchscreen 7. Heating time should be about 5 min,because the clue between 8. Rotate the knob reversely to raise the touchscreen and front housing is very sucker. large 9.seprate the touchscreen from front...
  • Page 28 G510 Maintenance Manual V1.0 INTERNAL 11.seprate the touchscreen from front 12. Lift the sucker and detach it from the housing touchscreen. Remove the suckers from the front cover assembly. Take out the front cover assembly and remove the long soft object. At the same time, lift the...
  • Page 29 G510 Maintenance Manual V1.0 INTERNAL 3.deassembly complete 2013-01-28 Huawei Confidential Page 29 of 96...

  • Page 30: Assembly Procedure

    G510 Maintenance Manual V1.0 INTERNAL Assembly Procedure 1. Wear the ESD wrist strap and ensure 2. Install and fix the receiver. that the ESD wrist strap is properly grounded. 3. Install the LCD 4. Install the TP 2013-01-28 Huawei Confidential...
  • Page 31 G510 Maintenance Manual V1.0 INTERNAL 6. Install the shied main FPC 5. Install the shied covers 7. Install the shied main camera 8. Install the shied front camera 9. Install the main board onto the front 10. Install the speaker onto the...
  • Page 32 G510 Maintenance Manual V1.0 INTERNAL 11. Install and fix the backcover 12. Fasten screw drivers. 13. The assembly is complete. 2013-01-28 Huawei Confidential Page 32 of 96...

  • Page 33: Principles And Failure Analysis

    The G510 is a Qualcomm MSM8225–based UMTS bar-type phone developed by Huawei and adopts the MSM8225+PM8029 chip solution provided by Qualcomm. The G510's main PCB consists of the MSM8225, PM8029, and RF components. The main PCB connects to components in several ways, including: ...

  • Page 34: Baseband Unit

    G510 Maintenance Manual V1.0 INTERNAL The main PCB plus structural components and a battery equals an integrated G510. The G510 supports multiple functions, such as the voice service, short message service (SMS), and microSD card storage, and can save contacts and text messages in the User Identity Module (UIM) card or the phone.
  • Page 35 G510 Maintenance Manual V1.0 INTERNAL Analysis The G510 adopts the independent power management chip PM8029. The PM8029's power-on process is controlled by Qualcomm's codes. When the PM8029 detects that the KPD_PWR_ON level is low, the PM8029 enables the power-on process. During the power-on process, the PM8029 converts the main power supply voltage (VHP-PWR) to voltages shown in Figure 9-3.
  • Page 36 Power-on faults are divided into the following types:  No current: The DC current ranges from 0 mA to 5 mA after you connect the G510 to the DC power supply and press the power key. ...
  • Page 37 G510 Maintenance Manual V1.0 INTERNAL If the G510 fails to be powered on, observe the DC current upon power-on to identify the fault. Figure 9-4, Figure 9-5, and Figure 9-6 show the fault identification processes upon no current, weak current, and strong current.
  • Page 38 G510 Maintenance Manual V1.0 INTERNAL Figure 9-5 Fault identification process upon weak current The U8825-1 fails to be powered on. Install a simulated battery on the U8825-1, connect the U8825-1 to the maintenance power, press the power key, and observe the current.

  • Page 39: Charging Management Circuit

    G510 Maintenance Manual V1.0 INTERNAL Figure 9-6 Fault identification process upon strong current The U8825-1 fails to be powered on. Install a simulated battery on the U8825-1, connect the U8825-1 to the maintenance power, press the power key, and observe the current.
  • Page 40 G510 Maintenance Manual V1.0 INTERNAL Figure 9-7 Circuit diagrams for charging management 2013-01-28 Huawei Confidential Page 40 of 96...
  • Page 41 Current of trickle charging. (SHORT) Battery voltage when the charging is complete. (RCH) The PM8029 monitors the main voltage of the G510 using the CSOUT pin as follows:  Trickle charging starts when the battery voltage is smaller than V (SHORT) ...
  • Page 42 A charger is connected to the G510 but the G510 does not respond.  The G510 displays the charging icon on the screen but in fact the battery fails to be charged. Handling: Check whether the I/O battery connector is damaged. Troubleshoot the fault according to the process shown in Figure 9-9.
  • Page 43 G510 Maintenance Manual V1.0 INTERNAL Figure 9-9 Troubleshooting process when the G510 fails to be charged The U8825-1 fails to be charged after connecting to a charger. Does the charger Replace the operate properly? charger. Is the USB connector J103...

  • Page 44: Clock Circuit

    G510 Maintenance Manual V1.0 INTERNAL Signal Reference Measurement Description Symbol or Waveform Input end of the external USB power VCHG 0–5 V supply and the charging chip Main power supply, supplying power to VPH_PWR Powering voltage the power module Voltage range: 0–4.2 V...
  • Page 45 G510 Maintenance Manual V1.0 INTERNAL Figure 9-11 shows the circuit diagram of the 32.768 kHz clock. Figure 9-11 Circuit diagram of the 32.768 kHz clock Analysis Figure 9-12 shows the block diagram of the 19.2 MHz clock. Figure 9-12 Block diagram of the 19.2 MHz clock As shown in Figure 9-12, the 19.2 MHz clock outputs clock signals to the PM8029 and...

  • Page 46: Flash Memory Circuit

    G510 Maintenance Manual V1.0 INTERNAL Troubleshooting Fault symptom: The G510 fails to be powered on or frequently breaks down. Checks on the 32.768 kHz oscillator show that X301 and U3101 have no output or output unstable frequencies. Handling: Replace X301 or U3101. If the problem persists, replace the PM8029.
  • Page 47 G510 Maintenance Manual V1.0 INTERNAL Figure 9-13 Circuit diagrams of the flash memory 2013-01-28 Huawei Confidential Page 47 of 96...
  • Page 48 G510 Maintenance Manual V1.0 INTERNAL 2013-01-28 Huawei Confidential Page 48 of 96...
  • Page 49 The G510 uses the 4 GB eMMC, which uses the eight-bit data cable for transmission. Troubleshooting Fault symptom: The G510 fails to be powered on, or the power-on current is less than 100 Handling: Upgrade or upload the system software, and verify that the VREG_DCDC_2P85 voltage and peripheral components are normal.

  • Page 50: Rf Unit

    G510 Maintenance Manual V1.0 INTERNAL Circuit Symbols Signal Symbol Description Reference Measurement or Waveform SDC3_DATA3 Data cable None SDC3_DATA2 Data cable None SDC3_DATA1 Data cable None SDC3_DATA0 Data cable None SDC3_DATA7 Data cable None SDC3_DATA6 Data cable None SDC3_DATA5 Data cable...
  • Page 51 G510 Maintenance Manual V1.0 INTERNAL Figure 9-15 Transceiving circuit diagram The RF switch model of the main antenna is 47140032. Table 9-2 lists the control logic of the 47140032 RF switch. Table 9-2 Control logic of the 47140032 RF switch...
  • Page 52 G510 Maintenance Manual V1.0 INTERNAL Figure 9-16 Circuit diagram of the WCDMA IMT PA Figure 9-17 shows the circuit diagram of the WCDMA 850 MHz PA. Figure 9-17 Circuit diagram of the WCDMA 850 MHz PA Figure 9-18 shows the circuit diagram of the WCDMA PCS PA.
  • Page 53 G510 Maintenance Manual V1.0 INTERNAL Figure 9-18 Circuit diagram of the WCDMA PCS PA Figure 9-19 shows the circuit diagram of the GSM quad band PA. Figure 9-19 Circuit diagram of the GSM quad band PA Figure 9-20 shows the circuit diagram of the UMTS IMT RX interstage chain.
  • Page 54 Figure 9-21 Circuit diagram of the RTR6285A chip for dual-mode RF transceiving Troubleshooting  No reception Fault symptom: The G510 fails to receive signals. Handling: The WCDMA 2100 MHz is used as an example. Troubleshoot the fault according to the process shown in Figure 9-22. 2013-01-28...
  • Page 55 G510 Maintenance Manual V1.0 INTERNAL Figure 9-22 Troubleshooting process when the G510 fails to receive signals The WCDMA 2100 MHz receive channel is faulty. Check U3301 before the RF cable is connected. Are pin 1 and pin 2 of Check U3301.
  • Page 56  No transmission Fault symptom: The G510 fails to transmit signals for the WCDMA 2100/900 MHz and the GSM 900 MHz/1800 MHz transmit channels. Handling: The WCDMA 2100 MHz frequency band is used as an example. Ensure that the SIM card and antenna are properly installed and then troubleshoot the fault according to the process shown in Figure 9-23.
  • Page 57 G510 Maintenance Manual V1.0 INTERNAL Figure 9-23 Troubleshooting process when the G510 fails to transmit signals The WCDMA 2100 MHz transmit channel is faulty. Check U3301 before the RF cable is connected. Are pin 1 and pin 2 of Check U3301.
  • Page 58 G510 Maintenance Manual V1.0 INTERNAL Circuit Symbols Signal Symbol Description Reference Measurement or Waveform VREG_L19_2P85 Supplying power to the GPS 2.85 V VREG_RFRX1 Supplying power to the RTR6285A 2.1 V VREG_RFTX Supplying power to the RTR6285A 2.7 V VREG_S3 Supplying power to the RTR6285A 1.8 V...

  • Page 59: Peripheral Circuits

    G510 Maintenance Manual V1.0 INTERNAL Reference Measurement Signal Symbol Description or Waveform PA for controlling the WCDMA PA_ON1 None 850/900 MHz frequency band PA for controlling the WCDMA PA_ON2 None 1900 MHz/AWS frequency band PA_RANGE0 Adjusting the PA gain None...
  • Page 60 G510 Maintenance Manual V1.0 INTERNAL 2013-01-28 Huawei Confidential Page 60 of 96...
  • Page 61 INTERNAL Analysis The G510 provides the 4.0-inch TFT LCD that supports 800 x 480 pixels. The G510's LCD uses the Mobile Industry Processor Interface (MIPI), requiring only two pairs of differential signaling cables and one pair of power cables. The LCD interface...
  • Page 62 G510 Maintenance Manual V1.0 INTERNAL Figure 9-25 Troubleshooting process when the LCD displays nothing The LCD displays nothing. Is the software properly reloaded? Is there Check L1201 and back light? U1201. Is U910 properly Re-solder U910. soldered? Is the connector Adjust J1201.

  • Page 63: Vibrator Circuit

    G510 Maintenance Manual V1.0 INTERNAL Reference Measurement or Signal Symbol Description Waveform Vertical frame synchronization MDP_VSYNC_P 1.8 V signal LCD_ID0 Vendors' ID information 1.8 V LCD_ID1 Vendors' ID information 1.8 V MIPI_DSI_CLK_P Clock differential signal (+) 1.8 V MIPI_DSI_CLK_N Clock differential signal (–) 1.8 V...
  • Page 64 G510 Maintenance Manual V1.0 INTERNAL Figure 9-27 Troubleshooting process when the vibrator does not vibrate The vibrator does not vibrate. Is the software properly reloaded? Re-weld the vibrator and Is the vibrator verify that it is properly dry jointed? soldered. The maintenance process then ends.

  • Page 65: Receiver And Speaker

    G510 Maintenance Manual V1.0 INTERNAL 9.4.3 Receiver and Speaker Speaker Circuit Diagram Figure 9-28 shows the speaker circuit diagrams. Figure 9-28 Speaker circuit diagrams 2013-01-28 Huawei Confidential Page 65 of 96...
  • Page 66 G510 Maintenance Manual V1.0 INTERNAL Receiver Circuit Diagram Figure 9-29 shows the receiver circuit diagrams. Figure 9-29 Receiver circuit diagrams 2013-01-28 Huawei Confidential Page 66 of 96...
  • Page 67 INTERNAL Analysis Figure 9-30 shows the audio processing circuit inside the MSM8225. Figure 9-30 Audio processing circuit inside the MSM8225 The G510 provides three kinds of audio output:  Receiver output: Signals are output by the CPU.  Speaker output: Signals are output by the PM8029 to the PA and to the speaker.
  • Page 68 G510 Maintenance Manual V1.0 INTERNAL SPK_OUT_L_P Output by the PM8029 to the PA None and to the speaker SPK_OUT_L_M Output by the PM8029 to the PA None and to the speaker Troubleshooting Fault symptom: After a call is established, no voice is received.

  • Page 69: Microphone

    G510 Maintenance Manual V1.0 INTERNAL Figure 9-31 Troubleshooting process when the G510 receives no voice After a call is established, no voice is received. Is the software properly reloaded? Adjust the headset volume Is the headset to a proper value.
  • Page 70 G510 Maintenance Manual V1.0 INTERNAL Figure 9-32 Circuit diagram of the primary microphone Figure 9-33 shows the circuit diagram of the secondary microphone. Figure 9-33 Circuit diagram of the secondary microphone 2013-01-28 Huawei Confidential Page 70 of 96...
  • Page 71 G510 Maintenance Manual V1.0 INTERNAL Analysis The G510 provides the primary and secondary microphones to collect different voice signals and processes the collected voice signals to filter noises. The G510 uses the following power supplies:  HSED_MICBIAS (headset microphone, PM8029/HSED_BIAS1) ...

  • Page 72: Headset Circuit

    Figure 9-35 shows the headset circuit diagram. Figure 9-35 Headset circuit diagram Analysis The headset is tested using the GPIO_026's HS_DETECT_N after being inserted to the G510:  Before the headset is inserted, HS_DETECT_N is converted to high level by VREG_S3.
  • Page 73 The headset's microphone is powered by MIC_BIAS1 (PM8029/HSED_BIAS1) and used to test the headset's reception function. The G510's headset is compatible with two headset cable orders, among which the one compatible with iPhone is used by default. The pull-up voltage is 2.6 V provided by L19.

  • Page 74: Sim Card Circuit

    G510 Maintenance Manual V1.0 INTERNAL HPH_OUT_L Stereo headset output None HPH_OUT_R Stereo headset output None Bias voltage of the headset HSED_MICBIAS Voltage Signal microphone MIC2_P Headset microphone input None MIC2_N Headset microphone input None HSED_ADC_DET Headset microphone detection Voltage change...
  • Page 75 G510 Maintenance Manual V1.0 INTERNAL Analysis The PM8029 provides input and output signals to control the SIM card port of the G510. Troubleshooting Fault symptom: The G510 fails to detect the UIM card. Handling: Check that the UIM card slot is normal. Troubleshoot the fault according to the process shown in Figure 9-38.
  • Page 76 G510 Maintenance Manual V1.0 INTERNAL Figure 9-38 Troubleshooting process when the G510 fails to detect the UIM card The U8825-1 fails to detect the UIM card. Can the mobile phone detect the UIM card after UIM card replacement? Is the UIM card...

  • Page 77: I/O Interface Circuit

    When a charger is connected to the I/O interface, the charger provides the VCHG charging voltage to charge the battery. When a data cable is connected to the I/O interface, USB_HS_DN and USB_HS_DP are used for communication between the G510 and computer (to upgrade the software and read the G510's information).

  • Page 78: Microsd Card Port Circuit

    Figure 9-40 Circuit diagram of the microSD card port Analysis The U1402 is used to provide the ESD protection and EMI filtering. Troubleshooting Fault symptom: The G510 fails to detect the microSD card. Handling: Troubleshoot the fault according to the process shown in Figure 9-41. 2013-01-28 Huawei Confidential...

  • Page 79: Fm And Bluetooth Circuit

    G510 Maintenance Manual V1.0 INTERNAL Figure 9-41 Troubleshooting process when the G510 fails to detect the microSD card The U8825-1 fails to detect the microSD card. Can the U8825-1 detect and read the Do not read the microSD card after micro-SD card.
  • Page 80 Figure 9-42 Circuit diagram of the FM and Bluetooth Analysis The G510 integrates Bluetooth and the FM to provide functions, which are implemented by Qualcomm's WCN2243. Bluetooth uses an independent antenna and the FM uses the left- and right-audio channels as the antennas.
  • Page 81 G510 Maintenance Manual V1.0 INTERNAL Signal Provided by the Signal Line Definition MSM8225 GPIO_71 AUX_PCM_CLK PCM clock GPIO_107 MSM_WAKES_BT Used to wake the host GPIO_83 BT_WAKES_MSM Used to wake Bluetooth The PM8029 provides the audio input interface for directly connecting to the left- and right-audio channels of the FM module.
  • Page 82 G510 Maintenance Manual V1.0 INTERNAL Figure 9-43 Troubleshooting process when the FM radio fails The FM radio does not meet expectation. Can the FM radio operate properly after headset replacement? Can the FM radio operate properly after the headset connector is re-...

  • Page 83: Solder Points On The Pcb Board And Bga Chip

    G510 Maintenance Manual V1.0 INTERNAL Solder Points on the PCB Board and BGA Chip This chapter describes views of the PCB board, BAG chip, and related components. NOTE Red (R: 255, G: 0, B: 0) : vacant point Green (R: 0, G: 255, B: 0)
  • Page 84 G510 Maintenance Manual V1.0 INTERNAL Top View of the Main PCB 2013-01-28 Huawei Confidential Page 84 of 96...
  • Page 85 G510 Maintenance Manual V1.0 INTERNAL Bottom View of the Main PCB 2013-01-28 Huawei Confidential Page 85 of 96...
  • Page 86 G510 Maintenance Manual V1.0 INTERNAL U201 2013-01-28 Huawei Confidential Page 86 of 96...
  • Page 87 G510 Maintenance Manual V1.0 INTERNAL U401 2013-01-28 Huawei Confidential Page 87 of 96...
  • Page 88 G510 Maintenance Manual V1.0 INTERNAL U1800 2013-01-28 Huawei Confidential Page 88 of 96...
  • Page 89 G510 Maintenance Manual V1.0 INTERNAL U901 U1002 2013-01-28 Huawei Confidential Page 89 of 96...
  • Page 90 G510 Maintenance Manual V1.0 INTERNAL U1205 2013-01-28 Huawei Confidential Page 90 of 96...
  • Page 91 G510 Maintenance Manual V1.0 INTERNAL U3801 2013-01-28 Huawei Confidential Page 91 of 96...
  • Page 92 G510 Maintenance Manual V1.0 INTERNAL U6000 2013-01-28 Huawei Confidential Page 92 of 96...
  • Page 93 G510 Maintenance Manual V1.0 INTERNAL U1402 2013-01-28 Huawei Confidential Page 93 of 96...

  • Page 94: Functional Tests

    G510 Maintenance Manual V1.0 INTERNAL Functional Tests 11.1 Key Introduction Figure 11-1 shows the keys of the G510. Figure 11-1 Keys of the G510 Headset connector Power key/unlock Volume up key Volume down key Back key Menu key Home key...

  • Page 95: Mmi Tests

    MMI tests include:  Board test: The G510 directly proceeds to the next test if the board test is successful.  microSD card test: The message "No microSD card" is displayed if the microSD card is not inserted.
  • Page 96 G510 Maintenance Manual V1.0 INTERNAL Step 2 Press and hold the power key to power on the G510. Step 3 Check that the signal strength changes properly on a normal network. Step 4 Place a call to a fixed-line phone and check the voice quality during the call.

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