Thursday, March 17, 2016

Lenovo IdeaTab - Lynx series - K3011W – Ac adapter test procedure – Disassembling procedure – How to remove the key board – How to remove the tablet base cover- How to remove the batteries – Laptop repair and service

                                                Category: Laptop repair and Service 

Contents of this article

  • Hardware details
  • How to check the AC adapter   
  • How to remove the cases

Lenovo IdeaTab - K3011

WHATS INSIDE ? ( Hardware )
11.6’’ IPS HD 1366x768 400nit brightness Capacitive 5 point multi-touch
Memory & storage:
Storage: 32GB/64GB emmc
Intel ATOMTM Processor
Z2760 (Dual Core 1.80Ghz)
Integrated camera:
2.0M front camera
Micro SD supports up to 32GB
Micro HDMI
Micro USB
2x USB 2.0 (on keyboard dock)
BT 4.0
Wi-Fi 802.11b/g /n
6800mAh Lithium polymer 16 hours battery life (8 hours without keyboard dock)
To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Connect the AC adapter.
3. Make sure that power is supplied when you turn on the computer.
4. Turn off the computer.
5. Disconnect the AC adapter.
6. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the AC adapter ”
“Checking operational charging”
Checking the AC adapter
You are here because the computer fails only when the AC adapter is used. If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure:
Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect.
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack.
Restore of factory default
The Lenovo IdeaTab K3011W computers come with pre-installed OneKey Recovery System.In order to save application files and the initial backed up files of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your first boot up, just enter Lenovo OneKey Recovery System and run System Recovery.
Disassemble the keyboard in the direction shown by arrows 1.
Lift the keyboard a little, and then detach the connector in the direction shown by arrows 2 3. Remove the keyboard in the direction shown by arrow 4.
Keyboard bezel
Remove the four rubber feet in the direction shown by arrows 1, then remove the four screws 2.
Detach the FPC connector in the direction shown by arrows 3 4. Remove six screws 5.
Remove the keyboard bezel in the direction shown by arrow 6.
Dock battery pack
Unplug the battery pack connector in the direction shown by arrow 1, remove the three screws 2.
Remove the battery pack in the direction shown by arrow 3.
Tablet base cover
Open the SIM card cover. Remove the screw 1.
Remove the base cover in the direction shown by arrow 2.
Tablet battery pack
Remove the four screws 1.
Remove the tablet battery pack from the LCD unit in the direction shown by arrow 2.