Detailed instructions for use are in the User's Guide.
[. . . ] Lenovo A7600
Hardware Maintenance Manual
Note:
Before using this information and the product it supports, be sure to read the general information under âNoticesâ on page 78. LENOVO products, data, computer software, and services have been developed exclusively at private expense and are sold to governmental entities as commercial items as defined by 48 C. 101 with limited and restricted rights to use, reproduction and disclosure. LIMITED AND RESTRICTED RIGHTS NOTICE: If products, data, computer software, or services are delivered pursuant to a General Services Administration âGSAâ contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. [. . . ] If you suspect a power problem, see the appropriate one of the following power supply checkouts: ⢠âChecking the Computer AC Chargerâ on page 21 ⢠âChecking the internal battery statusâ on page 22
Checking the Computer AC Charger
When you use the computer AC Charger to charge the tablet but no power is charged, see the instructions in this topic to check the computer AC Charger. Measure the output voltage across the connector marked B of the micro-USB cable. Refer to the following figure:
12
3 (5V)
Pin 1 2 3
Voltage (V dc) Ground 0 +5
Note: The output voltage across pin 3 of the micro-B connector might be different from the one you are servicing. 21
Lenovo A7600 Hardware Maintenance Manual
Checking the internal battery status
To check the battery status of the tablet, do either of the following: ⢠Approximate information about the battery status Get the approximate status of the battery at any time by checking the battery status icon on the system bar in the upper-right corner of the screen. ¢ Accurate information about the battery status To get the accurate information about the battery status of the tablet, do the following: 1. To open the Android Settings screen, do either of the following: â â From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. Pull down the application icon from the action bar and then touch Settings. The accurate percentage of the remaining battery power is shown on the screen. 22
Related service information
Related service information
This chapter presents the following information: ⢠âSecurityâ on page 23 ⢠âPower managementâ on page 23
Security
Security settings include: SCREEN SECURITY , SIM CARD LOCK (3G version only) , PASSWORDS , DEVICE ADMINISTRATION and CREDENTIAL STORAGE. Power management
Note: Power management modes are not supported for APM operating system. To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation. Activating/Deactivating the Display
With the display deactivated, press the Power button on the computer to activate the display. The computer display will then illuminate, indicating that it has been activated. If you do not need to use your computer temporarily, you can press the Power button to deactivate the display. 23
Lenovo A7600 Hardware Maintenance Manual
Lenovo A7600
This chapter presents the following product-specific service references and product-specific parts information: ⢠âSpecificationsâ on page 24 ⢠âFRU replacement noticesâ on page 26 ⢠âRemoving and replacing an FRUâ on page 27 ⢠âLocationsâ on page 73 ⢠âParts listâ on page 75
Specifications
The following table lists the specifications of the Lenovo A7600 tablet. 2 (free support to one major version upgrade during lifecycle) Network ⢠WCDMA (HSPA+ 21mb/s), EDGE ⢠1. 5mm SIM card slot T-flash card slot
25
Lenovo A7600 Hardware Maintenance Manual
FRU replacement notices
This section presents notices related to removing and replacing parts. In Lenovo computers, this problem is addressed with special nylon-coated screws that have the following characteristics: ⢠They maintain tight connections. ¢ They do not easily come loose, even with shock or vibration. Do the following when you service this machine: ⢠Keep the screw kit in your tool bag. Tighten screws as follows: ⢠Plastic to plastic Turn an additional 90° after the screw head touches the surface of the plastic part:
more than 90°
(Cross-section)
⢠Logic card to plastic Turn an additional 180° after the screw head touches the surface of the logic card:
more than 180°
(Cross-section)
⢠Torque driver If you have a torque screwdriver, refer to the âTorqueâ column for each step. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. [. . . ] Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the userâs responsibility to evaluate and verify the operation of any other product, program, or service. [. . . ]