TCL PIXI 5-10 4G VF Technical manual

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PIXI 5-10 4G VF
VF1300
Note: this manual can be modified without prior notice on the characteristics of described
equipment. Please download from Support website for the latest versions.

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1.1
2017/04/20
Update item NO. for L2E parts
Marvin Chen
Keira Xie
1.0
2017/04/18
Final Version
Marvin Chen
Keira Xie
1.0
2017/03/30
Draft creation
Marvin Chen
V1.0
Rev.
Date
Modification description
Prepared By
Checked By
Approved By

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Content
1Level 2E repair process............................................................................................4
2Warranty Check and Visual Inspection ...................................................................4
2.1 Warranty confirmation of L1.....................................................................................4
2.2 Visual mechanical check..........................................................................................5
2.3 Pretest........................................................................................................................6
3Battery........................................................................................................................8
3.1 Battery information...................................................................................................8
3.2 Battery storage requirements:.................................................................................9
4Software download ...................................................................................................9
4Disassembly and assembly....................................................................................10
4.1 ESD Safety................................................................................................................10
4.2 Disassembly tool......................................................................................................10
4.3 Disassembly process...............................................................................................11
4.4 Disassembly Notice: ................................................................................................19
4.5 Reassembly process................................................................................................19
5L2 spare part list......................................................................................................20
6Level 2 trouble shooting.........................................................................................20
7Level 2 Enhance Repair..........................................................................................28
7.1 Position of components on PCBA for L2 enhance repair.....................................29
7.2 Trouble shooting for common failures...................................................................31
7.2.1 LCD Display issue ...............................................................................................32
7.2.1 Power on issue ....................................................................................................32
7.2.2 TF card is not recognized...................................................................................34
7.2.3 Camera function failure.......................................................................................35
7.2.4 Charging failure...................................................................................................36
7.2.5 USB is not recognized.........................................................................................37
7.2.6 No Wi-Fi/BT/FM/GPS signal ................................................................................38
8PCBA exchange.......................................................................................................39
9NOTE for defective PCBAs.....................................................................................39
10 Functional test.........................................................................................................39

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1 Level 2E repair process
Please refer to <L2E repair process> in support (CSS/RSH) website for details.
2 Warranty Check and Visual Inspection
2.1 Warranty confirmation of L1
IMEI check:
1) Power on the handset, click-through “Settings” -> “About tablet” -> “Status” -> “IMEI
information”.
2) Open Phone App and type “*#06#”.
3) IMEI label is on the SD/SIM slot cover (as illustrated in the following figure)
If the IMEI label on the SD/SIM slot cover remains:
We should make sure that the IMEI number in the system MUST be the same with the one on the
IMEI label; if not, it should be out of warranty.

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Humidity sensitive label
If humidity sensitive label is not good, the tablet will be considered as out of guarantee.
Liquid was detected by humidity sensitive label.
2.2Visual mechanical check
Please refer to <Visual mechanical check> in support (CSS/RSH) website for details.

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2.3 Pretest
1) Check that the SIM card and SD card are set correctly.
2) Power on the tablet.
3) If the tablet asks to input NCK code, this means it is SIM locked and can only be worked with
dedicated SIM card. Use the correct SIM card.
4) Enter the phone code if necessary.
5) Power on the product to launch the auto test
Using auto test code:
Open “Calculator” application, and type “0*0-0+=” to enter MMI test mode, you will then see the
interface displaying the SW version. Select “AUTO” to start the auto test, or select “MANU” to
do the MMI test manually.
If one of the tests fails during “AUTO” test mode, it will display “Failed: xxx”. In this case, either
press „Next‟ to go on test or press „END‟to Power off.”
For detailed instruction of each test item, please refer to <MMI TEST> video in support
(CSS/RSH) website.

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3 Battery
3.1 Battery information
3.1.1 Battery feature
Model
Element
Capacity
Battery Li
Lithium
4600mAh
3.1.2 Battery life
The bellowing table shows the nominal battery life respectively in standby and talking mode. These typical
values are expressed in normal temperature with battery initially full charged and under good ratio
coverage. Battery range depends on the network characteristics, the ambient temperature and particularly
on movement.
Power pack
9026T/X
Standby time (hours)
Talking time
Lithium (soft pack)
1300 hrs (Airplane mode standby)
2G: 22H
3G: 18H
3.1.3 Battery charge time
For a normally discharged battery which has not been stored for long time, the charge time listed as below
table.

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Battery type
Typical Charge time
Lithium (soft pack)
<6 hours
Note:
1) If the battery is new, charge it before use. Battery icon will appear after charging a short time.
2) If the battery is deeply discharged, battery icon will appear after charging several minutes and
accompany with a slight sound.
3.2 Battery storage requirements:
1) Relative Humidity: 30% ~85%.
2) Storage temperature: -20°C ~ 27°C.
Stay away from heat sources and direct sunlight.
4 Software download
The minimum requirements to perform a software download are as follow:
a) Product with Fully charged battery
b) PC with below configurations
CPU: Pentium 1.6 GHz or above;
RAM: 2GB or above;
Operation system: Windows2000/XP/Vista/Windows 7/8/10
c) USB port
d) Internet connection with minimum internet speed of 8Mb/s
e) Downloading cable (USB cable)
Please use the dedicated software downloading tool (DL Tool) for this product. The version of this tool
at launched of the product is “SUGAR MTK_SP”. Please always use the latest version of the software
downloading tool in order to take advantage of the latest improvements. This DL tool can be
downloaded from support website (CSS/RSH)
Please refer to <instructions of SUGAR Tool> video in support (CSS/RSH) website.

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4 Disassembly and assembly
4.1 ESD Safety
Please wear static loop or static glove
4.2 Disassembly tool
You may use the following tools during the disassembly and reassembly procedure:
No
Item
Picture
Required
or not
Remark
1
Plastic flake

2
Tweezers

Anti ESD
3
Pry Bar

4
Screws driver

5
Electric
screws driver

Set the torque
base on the
size of screw

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6
SIM card pin

7
Suction cup

8
Solder iron

9
Hot wind gun

4.3 Disassembly process
The steps of disassembly are as below.
Step1: Open the SIM slot cover, take off one screw (set the torques at 0.7kgf.cm if using electric
screw driver, set the torques at 0.8kgf.cm if using manual screw driver), and then remove the back
cover by prying up from down left side of the tablet as following illustrated picture.

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Back cover removed

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Step2: Disconnect camera, speaker, FPCs and RF cable.

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Note: it is the same way removing G (LCD FPC) and H (TP FPC) as D (main FPC) by step ②and ③.

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Step3: Take off the 6 screws on the tablet PCBAs (set the torques at 0.7kgf.cm if using electric screw
driver, set the torques at 0.8kgf.cm if using manual screw driver):
Step 4: Pry up the main PCBA, and sub PCBA

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Note:Speaker can be removed from PCBA by using soldering iron. (Temperature :Lead-free technology
330℃±10℃,time :5~6 seconds)
Step5: Take off 13 screws from Furnished Mid-Frame and then remove the frame (set the torques at
0.7kgf.cm if using electric screw driver, set the torques at 0.8kgf.cm if using manual screw driver).
Battery shall not be separated from Furnished Mid-Frame as it is firmly adhered to the Furnished
Mid-Frame by adhesive. If Furnished Mid-Frame swap is needed, swap Furnished Mid-Frame along
with the battery.

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Important notice: The replaced battery shall not be reused.
Step6: Then LCD can be easily taken off from furnished front casing.

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Step7: Disassemble complete.

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4.4 Disassembly Notice:
1) PCB crack could occur if attention was not fully paid when prying up.
2) Hereby, the speaker is a two-in-one component with speaker and receiver function.
3) About battery disassemble notice:
Improper operation on battery will cause high risk for fire or burning. Thus please pay high attention to
the WARNING part.
4) Put all the spare parts on right position (don‟t let all the spare parts mixed and put on the clean place
to avoid vitiated or stained for each spare part) after disassembly.
4.5 Reassembly process
Please make reference to the disassembly process for assembly reverse an order of the disassembly steps.
Attention:

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When assemble, please replace the Conductive Fabric to ensure the parts have passage to
dissipate ESD and are firmly attached in right position.
Before assembling furnished back cover, please check whether there‟s any deformation or damage
for the buckles; if yes, replace it with a new furnished back cover.
5 L2 spare part list
Please go to RSH webshop or Forlog system to search for L2 spare part list.
6 Level 2 trouble shooting
This chapter describes the Level 2 repair that can be done without any diagnostic equipment.