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L2E Repair Document

TCL

Communication Ltd.

Rev.

VF1300 Level 2E Repair Document

Page

1.0

29/39

All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.

7.1 Position of components on PCBA for L2 enhance repair

The NO in below table corresponds to the NO in the two illustrated figures above.

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Содержание PIXI 5-10 4G VF

Страница 1: ...39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization 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 ...

Страница 2: ...ansfer copy use or communication of this file is prohibited without authorization 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 ...

Страница 3: ...re download 9 4 Disassembly 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 5 L2 spare part list 20 6 Level 2 trouble shooting 20 7 Level 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 3...

Страница 4: ...site 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 MUS...

Страница 5: ... communication of this file is prohibited without authorization 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 ...

Страница 6: ...ed 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 d...

Страница 7: ...L2E Repair Document TCLCommunication Ltd Rev VF1300 Level 2E Repair Document Page 1 0 7 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization ...

Страница 8: ... 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 2...

Страница 9: ...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...

Страница 10: ...d without authorization 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 ...

Страница 11: ...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 ...

Страница 12: ...pair Document TCLCommunication Ltd Rev VF1300 Level 2E Repair Document Page 1 0 12 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization Back cover removed ...

Страница 13: ...LCommunication Ltd Rev VF1300 Level 2E Repair Document Page 1 0 13 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization Step2 Disconnect camera speaker FPCs and RF cable ...

Страница 14: ...td Rev VF1300 Level 2E Repair Document Page 1 0 14 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization Note it is the same way removing G LCD FPC and H TP FPC as D main FPC by step and ...

Страница 15: ...ts reserved Transfer copy use or communication of this file is prohibited without authorization 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 ...

Страница 16: ...n 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 ...

Страница 17: ...E Repair Document Page 1 0 17 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization Important notice The replaced battery shall not be reused Step6 Then LCD can be easily taken off from furnished front casing ...

Страница 18: ... Document TCLCommunication Ltd Rev VF1300 Level 2E Repair Document Page 1 0 18 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization Step7 Disassemble complete ...

Страница 19: ... 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 p...

Страница 20: ... 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...

Страница 21: ... battery connector is normal N Y Short test point TP1101 to GND shielding to see if phone can power on Power on failure Replace PCBA Charge for 15 minutes check whether can power on Check whether battery status is good R e w e l d o r Replace power key connector N N Replace power key FPC Y Check whether the connection between battery and battery connector is good N Re assemble the battery Y N N Re...

Страница 22: ...prohibited without authorization Charging failure Replace battery N N N Check whether the voltage of the battery is 0V and Charge for 15 minutes check whether battery is good C h e c k w h e t h e r b a t t e r y connector is good Check whether USB connector is normal Reweld or replace USB connector replace battery connector Y Y Y Charging failure Y Replace PCBA ...

Страница 23: ...n of this file is prohibited without authorization Display failure Check whether the connection b e t w e e n LCD a n d LCD connector is good N N Check whether LCD connector is normal Y Check whether LCD is n o r m a l i n t e r c h a n g e method N Reassemble LCD FPC Reweld or replace LCD connector Replace LCD Y Y Replace PCBA Display failure Y ...

Страница 24: ...his file is prohibited without authorization Touch function failure Check whether the connection between TP and TP connector is good N Y Reassemble TP FPC Y Y Replace PCBA Touch function failure Y N Replace TP C h e c k w h e t h e r T P i s n o r m a l i n t e r c h a n g e method N Reweld or replace TP connector Check whether TP connector is normal ...

Страница 25: ...fer copy use or communication of this file is prohibited without authorization SIM card can t be recognized Check whether the SIM card is good N N C h e c k w h e t h e r S I M c a r d connector is good Re assemble or change SIM card Re weld or change SIM card connector Y Replace PCBA Y SIM card can t be recognized Y ...

Страница 26: ...nsfer copy use or communication of this file is prohibited without authorization TF card can t be recognized Check whether the TF card is good N Check whether the TF card connector is good Change TF card Replace PCBA Y T F c a r d c a n t b e recognized Y N N Change TF card connector and see if problem can be solved ...

Страница 27: ...prohibited without authorization Main camera function failure Check whether the connection between main camera and Main camera connector is good N Y N Check whether main camera is normal Y Check whether Main camera connector is normal N Reassemble main camera Replace main camera Reweld or replace Main camera connector Y Replace PCBA Main camera function failure Y ...

Страница 28: ...N Check whether sub camera is normal Y C h e c k w h e t h e r s u b c a m e r a connector is normal N Reassemble sub camera Replace sub camera Reweld or replace sub camera connector Y Replace PCBA Sub camera function failure Y NOTE In case the Level 2 repair can t solve the problem For L2 repair center please exchange the PCBA 7 Level 2 Enhance Repair Before performing the following troubleshooti...

Страница 29: ...r Document Page 1 0 29 39 All rights reserved Transfer copy use or communication of this file is prohibited without authorization 7 1 Position of components on PCBA for L2 enhance repair The NO in below table corresponds to the NO in the two illustrated figures above ...

Страница 30: ...uctor 0 33 uH 20 DCR 0 022 ohm Power on issue 9 L0502 L0503 L0504 Power Inductor 0 47 uH 20 DCR 0 029 ohm Power on issue 10 L0602 Power Inductor 1 uH 20 DCR 0 045 ohm Charge issue 11 L0801 Power Inductor 4 7 uH 20 DCR 0 095 ohm LCD backlight issue 12 L0802 Power Inductor 4 7 uH 20 DCR 0 14 ohm Charge issue 13 U1302 Ultra Low Noise Amplifier 1 1 0 9 0 45 mm DFN 6L Mobile signal issue 14 U1301 4 in ...

Страница 31: ...he PCBA blister easily when you heat part of the PCBA by using hot wind gun 2 Interchange method means using a new component to test the function in order to verify whether the old component is defected 3 Please use hot air gun to re weld or disassemble assemble the component mentioned afterwards hot air gun temperature 330 Air Level 2 3 Height around 10mm Time less than 60s 4 Before re welding or...

Страница 32: ...d without authorization 7 2 1LCD Display issue Y Check whether LCD is n o r m a l i n t e r c h a n g e method N Y Change LCD Y Replace PCBA N Reweld or replace U0801 Check whether U0801 is normal Check whether the connection between LCD an LCD connector is good N Y N Check whether LCD connector is normal Reassemble LCD Reweld or replace LCD connector 7 2 1Power on issue ...

Страница 33: ... whether can power on Y N N Y Battery voltage at Vbat is normal N Replace side key FPC Replace new battery Reweld or replace battery connector Battery Is normal such as voltage check or inter change a good battery etc R e w e l d o r r e p l a c e U0501 PMU N Y PMU U0501 is normal Replace PCBA Y Power inductor L0501 L0504 is good N Reweld or replace defective power inductor Y R e w e l d o r r e p...

Страница 34: ...reserved Transfer copy use or communication of this file is prohibited without authorization 7 2 2 TF card is not recognized TF card is well inserted N Y N TF Card Connector is normal Reassemble TF card Reweld or replace TF Card Connector Y Reweld or replace U0501 PMU N PMU U0501 is normal Replace PCBA Y ...

Страница 35: ...this file is prohibited without authorization 7 2 3 Camera function failure Connection between main camera and Camera connector is good N Y N Camera Socket is normal Y Main camera is normal Interchange method N Reassemble main camera Reweld or replace camera socket Replace main camera Y Reweld or replace U0501 PMU N PMU U0501 is normal Replace PCBA Y ...

Страница 36: ...N Can charge after replace a good battery Y Replace battery Can charge after replace charger N Can charge after replace USB cable Reweld or replace U0501 PMU N PMU U0501 is normal Replace PCBA Y Y N Power inductor L0602 or L0802 is good Reweld or replace L0602 or L0802 Y Y Battery voltage at Vbat is normal N Reweld or replace battery connector N Can charge after reweld or replace micro USB connect...

Страница 37: ... copy use or communication of this file is prohibited without authorization 7 2 5 USB is not recognized USB cable is normal N Replace USB cable Y Y Reweld or replace VR1140 N TVS diode VR1140 is normal USB connector is normal N Reweld or replace USB connector Y Reweld or replace U0501 N PMU U0501 is normal Replace PCBA Y ...

Страница 38: ...is file is prohibited without authorization 7 2 6 No Wi Fi BT FM GPS signal Main FPC antenna is normal N Y Replace furnished frame Y N CR1209 is good N Antenna spring is good Y Re solder or replace antenna spring R e w e l d o r r e p l a c e CR1209 Reweld or replace U0501 N Y PMU U0501 is normal Replace PCBA Reweld or replace U1301 N Y U1301 is normal ...

Страница 39: ... IMEI number fault code short code Hardware Technical Level and software version 4 Send the NG PCBA with record sticker back to RSH 9 NOTE for defective PCBAs All the defective PCBAs should be sent to RSH If RSH send defective PCBAs for L3 repair please DO follow the packaging requirement mentioned in TN14011 10 Functional test During the function test the following items must be checked and valid...

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