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Summary of Contents for Blu LIFE PLAY X
- Page 1 BLU LIFE PLAY X Service Manual 1 / 27...
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Page 2: Table Of Contents
CONTENT 1 OUTLINE ..............................3 1.1 MOBILE PHONE INTRODUCTION..................... 3 1.2 M ................... 6 OTHERBOARD OMPONENTS ISTRIBUTION 2 SIGNAL FLOW AND FAULT ANALYSIS ...................... 6 2.1 RF P ............................6 2.1.1 Block Diagram of the RF Section ..................... 6 2.1.2 Signal Flow OF the RF Transmitting Part.................. 6 2.1.2.1 Receiving and Transmit Path .................... -
Page 3: Outline
1 Outline 1.1 MOBILE PHONE INTRODUCTION Product Hardware Introduction MT6589W PMIC MT6320 Transceiver MT6167 Camera DSP/MMP RFPA SKY77590 Base Chip Set MT6628Q MT6628Q Audio CODEC&PA YD168 Memory Samsung KMKJS000VM-B309 TP IC GT915 Backlight Driver AW9910STR Peripheral CAMERA OV8830 Configuration Memory Card TF Card Antenna monopole... - Page 4 Band 1 -109.5 dbm Band 8 -109.5 dbm EGSM 28.8dbm GSM850 27.0 dbm 28.0dbm 28.0dbm Band 1 20.0dbm Band 8 20.0dbm EGSM -105dbm GSM850 -105dbm -106dbm -106dbm Band 1 -107dbm Band 8 -107dbm 4 / 27...
- Page 5 CAMERA SKY77590 FM、BT、 MT6167 WiFi、GPS LCD：1280*720 MT6589W KEYPAD T-FLASH DUAL CARD MEMORY PMIC MT6320 BATTERY System Block Diagram 5 / 27...
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Page 6: Motherboard Components Distribution
1.2 Motherboard Components Distribution 2 Signal Flow And Fault Analysis 2.1 RF Part 2.1.1 Block Diagram of the RF Section PA & MT6589W Ant Switch SKY77590 Transceiver MT6167 RF Diagram MT6589W MT6167 GSM RF and BB interface diagram 2.1.2 Signal Flow OF the RF Transmitting Part 2.1.2.1 Receiving and Transmit Path Receiving 6 / 27... - Page 7 Transmit 7 / 27...
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Page 8: Maintenance Procedures Of The Transmitting Part
2.1.2.2 Maintenance Procedures of the Transmitting Part （NO launch） Connect the PC and the phone with maintenance line, then making the phone into the RF state with META software Check Transceiver Check see if IO signals exist. Check the PA output see if there is RF signal Check Transceiver... -
Page 9: Signal Flow Of The Receiving Part
2.1.3 Signal Flow of the Receiving Part 2.1.3.1 Receiving Part Components 9 / 27... -
Page 10: Maintenance Procedures Of The Receiving Part
2.1.3.2 Maintenance Procedures of the Receiving Part No receiving Start the META software to connect the PC and the phone，making the phone into the receiving state. Signal generator is also adjusted to the correspond CH. And signal lines connected to the phone. Check Transceiver Transceiver... -
Page 11: Baseband Part
2.2 Baseband Part 2.2.1 Block Diagram of the Baseband Part CAMERA SY77590 FM、BT、 MT6167 WiFi、GPS LCD：1280*720 MT6589W KEYPAD T-FLASH DUAL CARD MEMORY PMIC MT6320 BATTRY 11 / 27... -
Page 12: Power Management Part
2.2.2 Power Management Part The power management Part use the special PMU IC : MT6320. Support 5-ways of DC-DC and 21-ways of LDO output, with AB/D, 0.7W Audio amplifier, LCD backlight driving and Lithium battery charging circuit Inside it. Which support 5 LEDs in parallel and 10 LEDs in series. - Page 13 13 / 27...
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Page 14: Audio Part
2.2.3 Audio Part 2.2.3.1 Audio CODEC Circuit The phone uses the chip of YD168 to driving the single speaker, which is a class D YAMAHA no-hissing amplifier. 14 / 27... -
Page 15: Mic, Receiver Loop
2.2.3.2 MIC, RECEIVER LOOP MIC Audio channel is shown below: This product uses the dual（OPTION）analog MIC in order to reduce noise when you use voice calling. The power supply voltage is 1.8V-3.3V. When MIC is in good condition but loop MIC has no echo, then you need to check the basic bias voltage signal of the VMC, the language signals of the RECEIVER and MIC also need to be checked. -
Page 16: Headset Loop
2.2.3.3 HEADSET LOOP Headset loop includes two signals: Headset speaker and MIC, simultaneously the headset uses contact devices, the headset LOOP drive the FPC directly through J301. If the headset fitting were in good condition, when the headset plug in, it appears abnormal, such as: The Headset speaker has no sound、the MIC is invalid. -
Page 17: Baseband Fauit Issues
2.2.4 BASEBAND FAULT ISSUES Maintenance process of the download failure Issues: Download Fail Exclude the reason of Check to see if it is caused by other download failure factors such configuration, caused other download cable, power supply, factors software and PC Check if the system Check to see if the serial ports between connector is poor... -
Page 18: Analysis Of The Keyboard Fault
2.2.4.1 Analysis of the Keyboard Fault This board includes 3 side-buttons. All the keyboard circuits use the scanning method to detect except the power button, volume up and down. The scanning signal will be triggered when a button is pressed,, then the corresponding row and column will be detected, the function of the key can be identified according to the software definition. -
Page 19: Fm Module
For the screen problem you should first use the alternative method to search out whether the problem is in the motherboard or the LCD. Focus on examining the LCM connector and EMI filter welding.. The backlight signal is completed by the LED driver chip RT9614. Generally, measure the input voltage VBAT and the enable control signal. -
Page 20: Io Interface
The Camera Interface Circuit as show below: The Camera Power Supply Circuit The VCAM_IOPMU supply 1.8V to Camera IO interface voltage, VCAMA_PMU supply 2.8V analog voltage. 2.2.4.5 IO Interface IO applies 5pin standard interface，which realize the functions of USB, charging and download. 20 / 27... -
Page 21: Sim Card Circuit
2.2.4.6 SIM Card Circuit Switch of dual SIM cards is integrated into baseband, which supports dual SIM Card function, SIM1 support GSM/WCDMA Card, SIM2 support only GSM Card.. As show below: 2.2.4.7 T-FLASH Card Circuit The T-FLASH Card Circle support data exchange between Phone and PC. The have four Circuit serial data transmission lines （... -
Page 22: Bt Circuit
2.2.4.8 BT Circuit The Bluetooth function is one part of the MT6628Q .The BT include baseband, RF unit, Circuit UART2 unit, PCM interface system configuration, and also. 22 / 27... -
Page 23: Wifi Circuit
2.2.4.9 WIFI Circuit The WIFI Circuit integrated in MTK6628Q, The WIFI includes baseband, RF unit, power, Circuit SDIO interface system configuration. It supports dual-band (2.4G and 5G), following 802.11d/h/k agreement, supports safety format is WFA, WPA/WPA2, WPS2.0, WAPI. The WIFI’S RF interface is connected with external antenna. The ANT is transmitting or receiving signals to communicate with WIFI equipment. -
Page 24: Gps Circuit
2.2.4.10 GPS Circuit The GPS Circuit integrated in MTK6628Q, It includes baseband, RF unit, power, UART interface system configuration. Its sensitivity supports 165dBm, supports AGPS. The GPS’S RF interface is connected with external antenna. The ANT is receiving GPS satellite signal to achieve positioning. -
Page 25: G-Sensor Circuit
2.2.4.12 G-sensor Circuit G-SENSOR is a sensor of acceleration due to gravity. It supports X, Y, Z three-axis orientation sensor. M-SENSOR uses I2C to connect CPU interface, in order to transmit directives and data. 2.2.4.13 IR-sensor Circuit IR-SENSOR is light &distance sensor. It induces current phone the environment in which of the brightness and Perceived distance of the human face in the phone calling and the phone. - Page 26 3. Disassembly and assembly service Tools 26 / 27...
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