Prestigio PAP4000 Service Manual
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Prestigio PAP4000 Service Manual

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1.
Summary ................................................................................................................................................ 2
1.1. Product summary ............................................................................................................................. 2
1.2. Appearance and corresponding functionalities ................................................................................ 2
1.3. Abbreviations .................................................................................................................................. 3
2.
Specifications and features.................................................................................................................... 3
2.1. Technological specifications............................................................................................................ 4
2.2. Hardware features ............................................................................................................................ 4
3.
Upgrade guides ...................................................................................................................................... 6
3.1. Upgrade of main program ............................................................................................................... 6
4.
Guides of disassembling and assembling ............................................................................................. 9
4.1. Tools of disassembling and assembling ........................................................................................... 9
4.2. Steps of disassembling and assembling ........................................................................................... 9
5.
Maintenance technologies ................................................................................................................... 16
5.1. Solutions to frequent failures ......................................................................................................... 16
5.1.1.
The name and location of main board ................................................................................... 16
5.1.2.
Hardware system framework ................................................................................................. 18
5.1.3.
（A）Functional failures .............................................................................................................. 19
A． The failure of powering on ................................................................................................... 19
Failures of receiving voice and ringtones ....................................................................... 20
C．The failures of displaying ....................................................................................................... 21
D．The failures of identifying SIM/UIM card and T card ............................................................ 23
E．The failures of Bluetooth ......................................................................................................... 24
F．The failures of shooting photos and recording videos ............................................................. 25
G. The failures of keys ................................................................................................................... 25
H. The failures of motor ................................................................................................................ 26
I.
The failures of charging ...................................................................................................... 26
J. The failures of WIFI ................................................................................................................ 27
（B）. RF section ......................................................................................................................... 29
A. RF section of WCDMA ............................................................................................................ 29
B、GSM The working principle of RF circuit for GSM ............................................................... 34
6.
Quality inspection ................................................................................................................................ 35
6.1. Inspection tools .............................................................................................................................. 35
6.2. Inspection objects .......................................................................................................................... 35
6.3. Inspection items ............................................................................................................................. 35
7.
Technological support ......................................................................................................................... 38
7.1. FTP Server (ftp://119.147.25.41/) .................................................................................................. 38
8.
FAQ ....................................................................................................................................................... 38
9.
Appendix .............................................................................................................................................. 42
_________________________________________________________________________________________________________ _______________
2012-5-8
PAP4000 Service Manual
Contents
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  • Page 1: Table Of Contents

    PAP4000 Service Manual Contents Summary ..............................2 1.1. Product summary ..........................2 1.2. Appearance and corresponding functionalities ................2 1.3. Abbreviations ..........................3 Specifications and features........................3 2.1. Technological specifications......................4 2.2. Hardware features ..........................4 Upgrade guides ............................6 3.1.

  • Page 2: Summary

    PAP4000 Service Manual 1. Summary 1.1. Product summary 1）WCDMA:850/2100MHz，GSM 900/1800/1900MHz； 2）WVGA HD capacitance screen with 4.0 inch; 3）Handwriting input under capacitance touchscreen; 4）Qualcomm 7227-A（1GHz）CPU; 5）Supporting syncing with PC, connecting to PC with USB port conveniently; 6）Supporting GPS navigation; 7）Supporting BT/WIFI 1.2.

  • Page 3: Abbreviations

    PAP4000 Service Manual 1.3. Abbreviations For your convenience, this handbook adopts the following abbreviations: Application processor Basic band TD-SCDMA, full name is: Time Division Duplex-Synchronization Code Division Multiple Access. HSDPA Full name is: High Speed Downlink Packet Access Global system of mobile communication...

  • Page 4: Technological Specifications

    PAP4000 Service Manual 2.1. Technological specifications Basic specifications 123×65.8×11.8mm Size Type Built-in Antenna Mini-inserted card Phone card Network mode WCDMA:850/2100MHz，GSM 900/1800/1900MHz Android2.3 Operation system Qualcomm 7227-A (1GHz) Processor ROM:512MB+RAM：512 MB Memory Support T-FLSHA card with 32GB at most SD card camera with 3.2 megapixels （AF）...
  • Page 5 PAP4000 Service Manual Secondary Null camera 2. Feature parameters Series Items Specifications Number of battery Voltage 3.500V~3.660V 3.660V~3.730V Battery capacity 3.730V~3.800V 3.800~3.930V >3.930V Incoming calls: if the voltage floats over 100mV, the current may come from module, so it needs to lower the limit of low voltage threshold, namely, primary card 3400 millivolt, secondary card 3450 millivolt.

  • Page 6: Upgrade Guides

    PAP4000 Service Manual 3. Upgrade guides 3.1. Upgrade of main program  Preparations for upgrade: Series Name Specifications Quantity Notes Computer No requirement Standardized data cable (slotted 5PIN data Data cable cable) Phone adequate Battery battery Version software, upgrade tools, phone Software driver and others.
  • Page 7 PAP4000 Service Manual Download the driver that APP needs. If it prompts Apps failed to search device at tool status bar, please check if adb driver is normal and USB debug is enabled. Detailed steps of upgrade  1) To run installation-free platform tool ；...
  • Page 8 Click Start to enable upgrade 4) When Integrated test is displayed in the tool status bar, it indicates the upgrade of PAP4000 is done, please plug off its data cable for the next device. Integrated test displayed, which means its upgrade done.

  • Page 9: Guides Of Disassembling And Assembling

    PAP4000 Service Manual 5) Copy GPS map package/pre-installed resource package/install pack: 7260+ GPS map package is external; please copy it to memory card to use. Copy COOLMAP package (decompressed) to memory card directory. 5.1. 7260+ pre-installed resource package, presetapp-7260+.zip, (do not need to be decompressed), copy it to COOLPAD directory located in memory card.
  • Page 10 PAP4000 Service Manual 4.2.2. Separate the back shell Use Disassemble plate to separate alongside with the seam. _________________________________________________________________________________________________________ _______________ 2012-5-8 10/42...
  • Page 11 PAP4000 Service Manual 4.2.3. Separate the front shell a. Disassembling tow screws and taking off the RF connection line; b. Open TW/LCD/small board connector; _________________________________________________________________________________________________________ _______________ 2012-5-8 11/42...
  • Page 12 PAP4000 Service Manual 4.2.4. Disassembling main board set _________________________________________________________________________________________________________ _______________ 2012-5-8 12/42...
  • Page 13 PAP4000 Service Manual Open the connector and turn over to the back of the main board. Take off the RF coaxial line use the tweezers or other sharp objects to take off positioning pillars. Open the connector and take out the camera 4.2.5.
  • Page 14 PAP4000 Service Manual Before disassembling FPCBA set, it needs to tear off the label on the bottom Open the connector, take out FPC and take out the small board _________________________________________________________________________________________________________ _______________ 2012-5-8 14/42...
  • Page 15 PAP4000 Service Manual Disassemble alongside with the seam with the tweezers or other tools and take out FPCBA set Note: the front shell of 7260+ adopts the new adhesive art, so they cannot be disassembled respectively, and the solution is to exchange them as an entirety.

  • Page 16: Maintenance Technologies

    PAP4000 Service Manual 5. Maintenance technologies 5.1. Solutions to frequent failures 5.1.1. The name and location of main board _________________________________________________________________________________________________________ _______________ 2012-5-8 16/42...
  • Page 17 PAP4000 Service Manual _________________________________________________________________________________________________________ _______________ 2012-5-8 17/42...

  • Page 18: Hardware System Framework

    PAP4000 Service Manual 5.1.2. Hardware system framework RF switch BCM4330 +1V8_VREG_S3 antenna GSM PA control UART GSM900/18 Attenuator From 8029 00/1900M Attenuator Attenuator SIM2 SSBI_2 GSM1900 VREG_L13 GSM1800 card SDIO1 GSM900 SIM1 WCDMA850 WCDMA2100 Antenna EBI2 switch NAND WCDMA Duplexer...

  • Page 19: A）Functional Failures

    PAP4000 Service Manual （A）Functional failures A． The failure of powering on There are lots of reasons to cause the device cannot power on or suffers from powering-on failures such as insufficient battery, battery connector being disconnected or welded poorly, broken component on system main board and malfunctioned structure.

  • Page 20: Failures Of Receiving Voice And Ringtones

    PAP4000 Service Manual Failures of receiving voice and ringtones The audio system framework of 7260+ is as follows: EBI2 NAND MAIN SDC1 T card MSM7227A BT Antenna RTR6285A( multi- channel WCDMA/GSM switch BCM4330 earphone UART1 LINE_ON/OP EAR1_O/P RECEIVER SPEAKER PM8029...

  • Page 21: C．the Failures Of Displaying

    PAP4000 Service Manual As for the problems of delivering and receiving sounds of earphone, it needs to verify if the earphone is well functioned, and the solution is to exchange the earphone for a new one to make confirmation. If the failure still lasts after having a new earphone, then it needs to verify if the connection of J1301, the earphone connector, is reliable, poor weld or broken.
  • Page 22 PAP4000 Service Manual LCD connector The failures of displaying include white screen, backlight fails to work, blurred screen and abnormal colors. If the failure is white screen, blurred screen or abnormal colors, it needs to verify if J1800, the LCD connector, has solid connection to main board or is reliable;...

  • Page 23: D．the Failures Of Identifying Sim/Uim Card And T Card

    PAP4000 Service Manual D．The failures of identifying SIM/UIM card and T card The failure of identifying SIM/UIM card 7260+ SIM/UIM card is inserted to J2002, the UIM connector, directly, the bottom slot of the slot set is WCDMA card by default and the other one is GSM card: When UIM/SIM card cannot be identified, the first step to check this failure is to verify if UIM/SIM card is malfunctioned.

  • Page 24: E．the Failures Of Bluetooth

    PAP4000 Service Manual broken or welded poorly, if it is, the solution is to exchange it for a new one. However, if the connection between J1302 and the main board is normal, then it needs to analyze the circuit of TFlash card and verify if there is shot circuit between all pins of J1302 and the main board, if there is, it needs to exchange J1302.

  • Page 25: F．the Failures Of Shooting Photos And Recording Videos

    PAP4000 Service Manual F．The failures of shooting photos and recording videos Cannot enter shoot mode： Generally, the causes are software, camera or assemble is malfunctioned, and/or J1900, U1902 or U1900 is malfunctioned. Black screen on entering shoot mode： It needs to obviate malfunctioned camera first, and the causes may lie in that U1902n U1900 and J1900 are welded poorly, additionally, the malfunctioned software may also cause this case.

  • Page 26: The Failures Of Motor

    PAP4000 Service Manual H. The failures of motor The failure of vibrator: first, it needs to verify if MOTOR, the vibrator, is welded well, if it is not, it needs to be re-welded; while if it is, it needs to measure the voltages against the ground of vibrator, and if the circuit is short-circuited to ground, it needs to verify if PM8029, the driver of vibrator, is broken.

  • Page 27: The Failures Of Wifi

    PAP4000 Service Manual The battery cannot be charged full: generally, the battery is broken, and some cases are the problems coming from the detective circuit. Failure of charging: first, it needs to verify if J2000, the tail plug, is welded well and then verify if U2000is welded well. Malfunctioned or poor welded Q700 can cause the failure of charging.
  • Page 28 PAP4000 Service Manual _________________________________________________________________________________________________________ _______________ 2012-5-8 28/42...

  • Page 29: B）. Rf Section

    PAP4000 Service Manual （B）. RF section A. RF section of WCDMA Electronic switch（U1400） This phone is dual mode single standby, the RF transmitting and receiving channels change via the electronic switch （U1400）which likes one single-blade and multi-turn switch. 20 PIN and 21 PIN are WCDMA signal channels.
  • Page 30 PAP4000 Service Manual power frequency or even burned. RF test port（J1400） This item only includes one RF test port. RF test port is exclusively saved for the sake of the convenience of R&D and production to calibrate and test the machine. If the test port is not inserted with the radio frequency line, pin 1 and pin 2 are connected directly, namely, the circuit is using the antenna;...
  • Page 31 PAP4000 Service Manual When WCDMA receive signals, the antenna receives some weak wireless signal coming from the space first, transmits them to the antenna port of the duplexer, and then the signals are sent to LNA to be processed by the receiving port.
  • Page 32 PAP4000 Service Manual needs to verify if LNA is welded poorly or located in the wrong place. Receiving filter（FL1000） Being amplified by LNA, the signal received by W2100 needs to be sent to FL1000, the filter, to filter further. After the transformation between the balance and unbalance, it becomes differential signal and then is sent to RTR6285A to perform demodulation.
  • Page 33 PAP4000 Service Manual electromagnetic wave and to radiate it out. The general failures caused by the problems of PA and its periphery circuit are: The calibration for the receiving part is normal, but that of transmission part fails The transmission power is abnormal on testing and the output power is lower or the power keeps vibrating on a large scope on testing；...

  • Page 34: B、Gsm The Working Principle Of Rf Circuit For Gsm

    PAP4000 Service Manual VPH connects VCC1 power supply net of PA, RFPA_VC supplies power to VCC2 pins of PA. D1102 is the protection diode of ESD, using to protect PA from static electricity. Additionally, VPH network connects to RFPA_VCC via the resistance with 0 ohm. D1101 is zener diode, using to protect PA from sudden high voltages.

  • Page 35: Quality Inspection

    PAP4000 Service Manual The signal received in GSM is differentiated output in the electronic switch, differentiated matched and then transmitted to RTR6285A for internal follow-up processions. If one of capacitors is pasted or spoiled in differentiated matching circuit, it may cause failing to pass calibration test and lowering receiving sensitivity.
  • Page 36 PAP4000 Service Manual Take the device and install battery, wait for the system boots fully and The course of verify if there is booting ringtone, if the ringtone is smooth, if the signal powering on and time displays are normal, if the screen has stripes and if there are other abnormal atmosphere.
  • Page 37 PAP4000 Service Manual As for the device which supports GPS, it needs to test if GPS can search GPS inspection Satellite and position precisely. Note, the test must be performed in the outdoor spacious place. Input *#9527# in Dialpad to enter Monitor test.

  • Page 38: Technological Support

    PAP4000 Service Manual off or re-boots, it means the problem still exists.) 7. Technological support The supporting path for daily technological service: 7.1. FTP Server (ftp://119.147.25.41/) Series Items Saved path Software with / Technology Department/01 Software with specific specific version...
  • Page 39 PAP4000 Service Manual 1. To select Wipe cache partition via Volume key and to perform erasing by pressing Power key, when these are done, it returns to the original status. 2. To select Wipe data/factory reset via Volume key and to enter the next interface by pressing Power key.
  • Page 40 PAP4000 Service Manual memory （RAM）is relatively small and leads to slow response: Do not run several programs at the same time, long press Home key to end task. When the system runs big programs, it may cause the screen is blocked. This phone already has high cost performance, but its internal memory is a little small.
  • Page 41 PAP4000 Service Manual connected normal, the signal is positive, and the Network cannot be accessed (sometimes it can be), which cause may be that the router is set as b/n/g mixing mode and the solution is to reset the router as single g mode.

  • Page 42: Appendix

    In the last item of Date and time settings, the user can see Timing power on or off. Appendix main board （ TOP and BOTTOM） Appendix 1： Location map of PAP4000 Appendix 2： Exploded views of PAP4000 structure _________________________________________________________________________________________________________ _______________ 2012-5-8 42/42...

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