General checkout
21
To verify a symptom, follow the steps below:
1.
Turn off the computer.
2.
Remove the battery pack.
3.
Connect the AC adapter.
4.
Make sure that power is supplied when you turn on the computer.
5.
Turn off the computer.
6.
Disconnect the AC adapter and install the charged battery pack.
7.
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 Computer AC Charger” on page 21
• “Checking the internal battery status” 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.
To check the computer AC Charger, do the following:
1.
Disconnect the micro-USB cable from the tablet.
2.
Measure the output voltage across the connector marked B of the micro-USB
cable. Refer to the following figure:
Note:
The output voltage across pin 3 of the micro-B connector might be
different from the one you are servicing.
3.
If the voltage is not correct, replace the micro-USB cable.
4.
If the voltage is acceptable, replace the system board.
Power system checkout
Pin
Volta
g
e (V dc)
1
Ground
2
0
3
+5
1 2
3 (5V)
Summary of Contents for Lenovo YT3-X50F
Page 1: ...YOGA Tab 3 10 Hardware Maintenance Manual Lenovo YT3 X50F Lenovo YT3 X50L Lenovo YT3 X50M ...
Page 33: ...Lenovo YOGA Tab 3 10 29 ...
Page 44: ...Lenovo YOGA Tab 3 10 Hardware Maintenance Manual 40 Figure 3 3 The removed volume key ...
Page 51: ...Lenovo YOGA Tab 3 10 47 Figure 5 8 The removed left speaker ...
Page 55: ...Lenovo YOGA Tab 3 10 51 Figure 6 6 The removed right speaker ...
Page 59: ...Lenovo YOGA Tab 3 10 55 Figure 8 3 The removed vibrator motor ...
Page 63: ...Lenovo YOGA Tab 3 10 59 Figure 9 6 The removed power FPC frame with power FPC attached ...
Page 72: ...Lenovo YOGA Tab 3 10 Hardware Maintenance Manual 68 Figure 11 8 The removed audio jack FPC ...
Page 81: ...Lenovo YOGA Tab 3 10 77 Figure 13 5 The removed antenna ...
Page 87: ...Lenovo YOGA Tab 3 10 83 Figure 14 9 The removed main board ...
Page 89: ...Lenovo YOGA Tab 3 10 85 Figure 15 3 The removed USB and volume key FPC ...
Page 96: ...Lenovo YOGA Tab 3 10 Hardware Maintenance Manual 92 Figure 16 12 The removed battery pack ...
Page 99: ...Lenovo YOGA Tab 3 10 95 Figure 16 17 The removed battery cell ...
Page 101: ...Lenovo YOGA Tab 3 10 97 Figure 17 3 The removed rotated camera ...