Acer B1-720, Service Manual

Page: 55 / 115

Troubleshooting 4-2
Troubleshooting
This chapter contains information about troubleshooting common problems associated with the
tablet.
General Information
The following procedures are guides for troubleshooting computer problems. The step by step
procedures are designed to be performed as described.
NOTE:
The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype
cards, or modified options can give false errors and invalid system responses.
1.
Obtain as much detail as possible about the problem.
2.
If possible, verify the symptoms by re-creating the failure through diagnostic tests or by
repeating the operation that led to the problem.
3.
Use Table 4-1 with the verified symptom(s) to determine the solution.
4.
If the issue is still not resolved, see Online Support Information on page 8-2 .
Table 4-1. Verified Symptoms
Symptoms See
Power on Issues Figure 4-1. Power On Issues on page 4-3
No Display Issues Figure 4-2. No Display Issues on page 4-4
LCD Picture Failure Figure 4-3. LCD Picture Failure on page 4-5
Touch Screen Failure Figure 4-4. Touch Screen Failure on page 4-6
Internal Speaker Failure Figure 4-5. Internal Speaker Failure on page 4-7
Extend Earphone Failure Figure 4-6. Extend Earphone Failure on page 4-8
USB Test Failure
Figure 4-7. USB Test Failure on page 4-9
Camera Failure Figure 4-8. Camera Failure on page 4-10
WiFi & BT Function Test Failure
Figure 4-9. WiFi & BT Function Test Failure on page
4-11
GPS Function Test Failure
Figure 4-10. GPS Function Test Failure on page
4-12
Other Functions Failure Other Functions Failure on page 4-13